JDI Design and Development G.K.

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IPC Class
H01L 27/32 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes 406
H01L 51/52 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED) - Details of devices 282
H01L 51/56 - Processes or apparatus specially adapted for the manufacture or treatment of such devices or of parts thereof 199
H01L 51/50 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED) 198
H01L 51/00 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof 190
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Found results for  patents
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1.

DISPLAY DEVICE

      
Application Number 18911287
Status Pending
Filing Date 2024-10-10
First Publication Date 2025-04-17
Owner JDI Design and Development G.K. (Japan)
Inventor
  • Miyabayashi, Yoshihisa
  • Harada, Kenji
  • Kamiya, Akinori
  • Ono, Yoshiyuki

Abstract

A display device includes: a substrate; an interlayer insulating layer that is provided inward of a periphery of the substrate, on a side corresponding to one principal surface of the substrate, and includes a resin material; an organic EL array that is provided on the interlayer insulating layer and includes a plurality of organic EL elements; an embankment provided outward of the interlayer insulating layer and inward of the periphery of the substrate, on the side corresponding to the one principal surface; and a sealing layer provided continuously on the organic EL array, the interlayer insulating layer, and the embankment and extending up to the periphery of the substrate or a vicinity of the periphery to cover the organic EL array, the interlayer insulating layer, and the embankment. The cross-sectional shape of the embankment is convex in a direction opposite to a direction toward the one principal surface.

IPC Classes  ?

2.

DISPLAY DEVICE DRIVING METHOD AND DISPLAY DEVICE

      
Application Number 18912619
Status Pending
Filing Date 2024-10-11
First Publication Date 2025-04-17
Owner JDI Design and Development G.K. (Japan)
Inventor Iwauchi, Eiji

Abstract

A display device driving method includes: converting a plurality of first luminance signals corresponding to a plurality of pixels to a plurality of second luminance signals; and driving a display component based on the plurality of second luminance signals. The converting includes: calculating a weight corresponding to a lighting period of the display component, based on the plurality of first luminance signals or the plurality of second luminance signals; calculating a cumulative value that is an accumulation of a value corresponding to the weight; calculating, based on the cumulative value, a reduction rate at which each of the plurality of first luminance signals is to be reduced; and calculating the plurality of second luminance signals, based on the reduction rate and the plurality of first luminance signals.

IPC Classes  ?

  • G09G 3/3233 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element

3.

DISPLAY DEVICE DRIVING METHOD AND DISPLAY DEVICE

      
Application Number 18912607
Status Pending
Filing Date 2024-10-11
First Publication Date 2025-04-17
Owner JDI Design and Development G.K. (Japan)
Inventor Iwauchi, Eiji

Abstract

A display device driving method of driving a display device that includes a display panel including plural pixels, the display device driving method including: calculating, for each of the plural pixels, cumulative stress that is an accumulation of stress corresponding to an output luminance of the pixel; selecting, based on a selection signal input to the display device, one correlation data item from among a plurality of correlation data items each corresponding to a different one of the plural pixels and indicating a relationship between the cumulative stress and an efficiency residual ratio that indicates a degradation degree of the pixel; determining the efficiency residual ratio, based on the one correlation data item and the cumulative stress; and correcting, for each of the plural pixels, a luminance signal corresponding to the pixel, based on the efficiency residual ratio that corresponds to the pixel and is determined in the determining.

IPC Classes  ?

  • G09G 3/3233 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
  • G09G 3/20 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix

4.

DISPLAY DEVICE

      
Application Number 18906229
Status Pending
Filing Date 2024-10-04
First Publication Date 2025-04-10
Owner JDI Design and Development G.K. (Japan)
Inventor
  • Harada, Kenji
  • Ono, Yoshiyuki

Abstract

A display device includes: an interlayer insulating layer on a substrate; an organic EL array; a metal layer connected to the organic EL array; a covering member disposed outward of the organic EL array and inward of a peripheral region of the interlayer insulating layer; a lower inorganic sealing layer provided continuously on the organic EL array, metal layer, and covering member up to the peripheral region of the interlayer insulating layer; a resin sealing layer covering at least part of the lower inorganic sealing layer; and an upper inorganic sealing layer provided continuously on the resin sealing layer up to the peripheral region of the interlayer insulating layer. At least part of a peripheral portion of the metal layer has a tapered cross-sectional shape convex in a direction opposite to a direction toward one principal surface of the substrate, and the peripheral portion is covered by the covering member.

IPC Classes  ?

5.

DISPLAY DEVICE AND MANUFACTURING METHOD FOR DISPLAY DEVICE

      
Application Number 18780298
Status Pending
Filing Date 2024-07-22
First Publication Date 2025-02-06
Owner
  • JDI Design and Development G.K. (Japan)
  • TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD. (China)
Inventor Seki, Takahiro

Abstract

A display device is provided in the present application. The display device includes a flexible display screen and a plate-shaped back reinforcing member attached to a back face of the flexible display screen. The back reinforcing member includes a surface facing the back face and an inner face facing away from the surface, and includes first region portion(s) and second region portion(s) adjacent to each other in a first direction that is along the surface. When the back reinforcing member is viewed in section in a second direction that is along the surface and perpendicular to the first direction, through hole(s) through the back reinforcing member are provided in first region portion(s) in a third direction perpendicular to both the first direction and the second direction, and concave portion(s) recessed from the surface toward the inner face are provided in the second region portion(s).

IPC Classes  ?

  • H10K 59/80 - Constructional details
  • H10K 59/12 - Active-matrix OLED [AMOLED] displays
  • H10K 102/00 - Constructional details relating to the organic devices covered by this subclass

6.

TILING PANEL, SELF-LUMINOUS PANEL, AND MANUFACTURING METHOD

      
Application Number 18576119
Status Pending
Filing Date 2021-07-05
First Publication Date 2024-07-18
Owner JDI Design and Development G.K. (Japan)
Inventor Yamada, Jiro

Abstract

[Problem] [Problem] Provides a tiling display has a structure that prevents deterioration in display quality due to light reflection at the seams of self-luminous panels in the tiling panel. [Problem] Provides a tiling display has a structure that prevents deterioration in display quality due to light reflection at the seams of self-luminous panels in the tiling panel. [Solution] [Problem] Provides a tiling display has a structure that prevents deterioration in display quality due to light reflection at the seams of self-luminous panels in the tiling panel. [Solution] A tiling panel formed by arranging a plurality of self-luminous panels, Each of the several self-luminous panels has a main display area as a display area and a main display area on the front side. It has a sub-display area that is connected to the display area and has a part that bends toward the back of the panel. The two self-luminous panels that meet each other are arranged so that the sub-display areas of each other are close to each other, and theIn the sub-display area, a circularly polarizing layer is formed on the light input/output path.

IPC Classes  ?

  • G09G 3/3208 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
  • G02B 5/30 - Polarising elements
  • G09G 3/00 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes

7.

Luminescent display device

      
Application Number 17580255
Grant Number RE050047
Status In Force
Filing Date 2022-01-20
First Publication Date 2024-07-16
Grant Date 2024-07-16
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Ono, Shinya

Abstract

A luminescent display device includes a substrate and a thin-film transistor above the substrate. The thin-film transistor includes a semiconductor layer, a gate insulating film on the semiconductor layer, a gate electrode on the gate insulating film, a source electrode, and a drain electrode. The luminescent display device further includes an interlayer insulating film on the gate electrode, a first capacitor electrode on the interlayer insulating film in a region above the gate electrode, and a luminescent element configured to be driven by a driver to produce luminescence. The driver includes the thin-film transistor, and the first capacitor electrode and the gate electrode constitute a capacitor.

IPC Classes  ?

  • G09G 3/22 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources
  • G09G 3/32 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
  • G09G 3/3233 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
  • H01L 27/12 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body
  • H01L 27/32 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes
  • H10K 59/121 - Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements

8.

METAL MASK

      
Application Number JP2023034763
Publication Number 2024/071048
Status In Force
Filing Date 2023-09-25
Publication Date 2024-04-04
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor
  • Sugimoto, Akira
  • Yakura, Masaki
  • Mori, Tsutomu
  • Nakajima, Minoru
  • Kamiya, Akinori

Abstract

A metal mask (10) comprising a mask plate (20) and a coating member (30) that coats regions of the mask plate (20). The mask plate (20) has: one or more openings (22) for forming a membrane; and multiple marks (23) for detecting deformation of the mask plate (20). The regions comprise multiple regions (25) corresponding to the multiple marks (23). Each of the multiple regions (25) is a region containing a mark (23) corresponding to the region (25) from among the multiple marks (23).

IPC Classes  ?

  • C23C 14/04 - Coating on selected surface areas, e.g. using masks

9.

INSPECTION METHOD, INSPECTION DEVICE, AND PROGRAM

      
Application Number JP2023031889
Publication Number 2024/057962
Status In Force
Filing Date 2023-08-31
Publication Date 2024-03-21
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Hashimoto, Shinichiro

Abstract

The present invention comprises: an acquisition step (S12) for acquiring a one-dimensional brightness profile by subjecting an inspection image in a pixel area of a display panel photographed by a photographing device to image processing for compressing the brightness of the inspection image into one-dimensional brightness; a generation step (S13) for generating a frequency spectrum intensity profile by Fourier-transforming the one-dimensional brightness profile; a calculation step (S14) for calculating the magnification of the photographing device from one or more peak positions in the frequency spectrum intensity profile on the basis of the periodic structure of pixels shown in the pixel area; and an estimation step (S15) for estimating a current focus position, which is the focus position of the photographing device in the inspection image, from the calculated magnification and magnification information indicating a relationship between a focus position and magnification of the photographing device.

IPC Classes  ?

  • G01M 11/00 - Testing of optical apparatusTesting structures by optical methods not otherwise provided for
  • G03B 13/36 - Autofocus systems
  • G09F 9/00 - Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
  • H04N 23/67 - Focus control based on electronic image sensor signals

10.

SELF-LUMINOUS DISPLAY PANEL HAVING DIFFERENT OPTICAL DISTANCES BETWEEN LIGHT-SHIELDING FILM AND LIGHT EMISSION REFERENCE POINTS DEPENDING ON LIGHT EMISSION COLOR

      
Application Number 18509720
Status Pending
Filing Date 2023-11-15
First Publication Date 2024-03-14
Owner JDI Design and Development G.K. (Japan)
Inventor Fukuoka, Kenta

Abstract

A self-luminous display panel in which pixels composed of sub-pixels are arranged, including light-emitting elements and a light-shielding film. The light-emitting elements correspond one-to-one with the sub-pixels, each sub-pixel in a pixel emitting a different color of light. The light-shielding film is provided with openings at positions corresponding to the light-emitting elements in plan view, downstream in a light emission direction of the light-emitting elements. Optical distances between the light-shielding film and light emission reference points of the light-emitting elements are different, depending on light emission color of the light-emitting elements.

IPC Classes  ?

  • H10K 59/35 - Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
  • H10K 50/852 - Arrangements for extracting light from the devices comprising a resonant cavity structure, e.g. Bragg reflector pair
  • H10K 50/86 - Arrangements for improving contrast, e.g. preventing reflection of ambient light
  • H10K 71/00 - Manufacture or treatment specially adapted for the organic devices covered by this subclass

11.

DISPLAY UNIT WITH MOISTURE PROOF FILM OUTSIDE OF SEAL SECTION AND ELECTRONIC APPARATUS WITH SAID DISPLAY UNIT

      
Application Number 18475669
Status Pending
Filing Date 2023-09-27
First Publication Date 2024-01-18
Owner
  • JDI DESIGN AND DEVELOPMENT G.K. (Japan)
  • JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor
  • Saito, Takatoshi
  • Izumi, Kenichi
  • Teraguchi, Shinichi
  • Nakadaira, Tadakatsu
  • Yokozeki, Mikihiro
  • Nishi, Shota
  • Kodate, Manabu

Abstract

A display unit including: a first substrate and a second substrate that are disposed to face each other; a first organic insulating layer on the first substrate; a plurality of light-emitting elements arrayed in a display region, the display region being on the first organic insulating layer and facing the second substrate; and a first moisture-proof film covering the first organic insulating layer in a peripheral region, the peripheral region being provided on the first substrate and surrounding the display region.

IPC Classes  ?

12.

Display device

      
Application Number 18349616
Grant Number 12106691
Status In Force
Filing Date 2023-07-10
First Publication Date 2024-01-18
Grant Date 2024-10-01
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Yamada, Takahiro

Abstract

A display device includes: a substrate temperature obtainer that obtains a substrate temperature of a substrate of a display panel; a power obtainer that obtains an amount of power used by a plurality of segmented regions of the display panel, based on image data displayed on the display panel; a first increased temperature deriver that derives an increased temperature of a panel surface of the display panel based on the amount of power used by the plurality of segmented regions; and a surface temperature estimator that estimates a temperature of the panel surface based on the substrate temperature and the increased temperature.

IPC Classes  ?

  • G09G 3/00 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
  • G01K 1/02 - Means for indicating or recording specially adapted for thermometers

13.

Control method of display device, and display device

      
Application Number 18334930
Grant Number 12118940
Status In Force
Filing Date 2023-06-14
First Publication Date 2023-12-21
Grant Date 2024-10-15
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor
  • Fujimura, Hiroshi
  • Tsuge, Hitoshi

Abstract

A control method is a method of a display device including a plurality of pixel circuits. Each of the pixel circuits includes a light emitting element, a drive transistor, and a pixel capacitance. The drive transistor includes a gate and a source. A frame period includes a first subframe period and at least one second subframe period. In the first subframe period, the control method includes: (A) applying a first initialization potential to the source; (B) writing a signal into the pixel capacitance; and (C) causing the light emitting element to emit light. In each of the at least one second subframe period, the control method includes: (D) maintaining the light emitting element in a non-emission state; (E) applying a second initialization potential to the source in (D); and (F) causing the light emitting element to emit light.

IPC Classes  ?

  • G09G 3/3233 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element

14.

Current limiting circuit, display device, and current limiting method

      
Application Number 17989386
Grant Number 11942031
Status In Force
Filing Date 2022-11-17
First Publication Date 2023-07-27
Grant Date 2024-03-26
Owner
  • JDI DESIGN AND DEVELOPMENT G.K. (Japan)
  • JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Fujiwara, Manabu

Abstract

A current limiting circuit is a circuit that receives a video signal for a display panel including pixels, and limits current consumption of the pixels. The current limiting circuit includes: a first gain calculation circuit that calculates a first gain for multiplying with the video signal, based on first power consumption that is power consumption of the pixels corresponding to the video signal; a second gain calculation circuit that calculates a second gain for multiplying with the video signal, based on the first power consumption and a rate of change of the first power consumption; a gain selection circuit that selects one of the first gain and the second gain as a gain by which the video signal is to be multiplied; and a gain multiplication circuit that multiplies the video signal by the gain.

IPC Classes  ?

  • G09G 3/3208 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]

15.

Display apparatus and current limiting method

      
Application Number 17999151
Grant Number 11893932
Status In Force
Filing Date 2021-05-17
First Publication Date 2023-07-13
Grant Date 2024-02-06
Owner
  • JDI DESIGN AND DEVELOPMENT G.K. (Japan)
  • JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Kato, Toshiyuki

Abstract

A display apparatus includes a display panel including a plurality of pixels, and a current limiting circuit that limits current consumption in the plurality of pixels, the current limiting circuit includes a gain computation circuit that computes a screen power value in reference to a pixel value included in a video signal and that determines a gain in reference to the screen power value, and a gain multiplication circuit that multiplies the pixel value by the gain and that outputs a limit signal including the pixel value multiplied by the gain, the display panel includes a display unit, and a lighting control circuit that controls a lighting state of the plurality of pixels in reference to a predicted power value computed according to the limit signal, to reduce a power consumption value in the plurality of pixels to a value equal to or smaller than a control target power value, the gain is 1 when the screen power value is equal to or smaller than the control target power value, and the gain is a value equal to or smaller than a value obtained by dividing the control target power value by the screen power value, in other cases.

IPC Classes  ?

  • G09G 3/3225 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix

16.

LIGHT-EMITTING APPARATUS

      
Application Number 18146553
Status Pending
Filing Date 2022-12-27
First Publication Date 2023-06-29
Owner
  • JDI DESIGN AND DEVELOPMENT G.K. (Japan)
  • JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor
  • Fukuda, Toshihiro
  • Takezawa, Hiroyoshi
  • Kishi, Yuki

Abstract

A light-emitting apparatus includes a plurality of organic electroluminescent sections, a light extraction surface, and a laminate section. The second reflective layer includes, from the organic light-emitting layer side, a first metal layer, a transparent layer, and a second metal layer thinner than the first metal layer, in this order, and, in each of the organic electroluminescent sections, an interference structure is formed according to a structure that includes a reflection interface A on the organic light-emitting layer side of the first reflective layer, a reflection interface B on the organic light-emitting layer side of the first metal layer, a reflection interface C on the light extraction surface side of the first metal layer, a reflection interface D on the organic light-emitting layer side of the second metal layer, and one or more reflection interfaces E formed according to differences in refractive indexes within the laminate section.

IPC Classes  ?

  • H10K 50/856 - Arrangements for extracting light from the devices comprising reflective means
  • H10K 59/35 - Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
  • H10K 50/852 - Arrangements for extracting light from the devices comprising a resonant cavity structure, e.g. Bragg reflector pair

17.

Current limiting circuit, display device, and current limiting method

      
Application Number 17987273
Grant Number 12020644
Status In Force
Filing Date 2022-11-15
First Publication Date 2023-06-01
Grant Date 2024-06-25
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Kato, Toshiyuki

Abstract

A current limiting circuit includes: a delay circuit that receives a video signal, and outputs a delay signal obtained by delaying the video signal by a time period corresponding to one frame; a calculation circuit that receives the video signal, and calculates a gain by which the delay signal is to be multiplied, based on power consumption of the pixels corresponding to the delay signal and power consumption of the pixels corresponding to the video signal; and a gain multiplication circuit that multiplies the delay signal by the gain.

IPC Classes  ?

  • G09G 3/3233 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element

18.

Control device, display apparatus, and control method

      
Application Number 17966247
Grant Number 12223880
Status In Force
Filing Date 2022-10-14
First Publication Date 2023-04-27
Grant Date 2025-02-11
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor
  • Ishii, Hiroaki
  • Kato, Toshiyuki

Abstract

A control device is for use in a case where frame periods, each being a period in which one image continues to be displayed, vary in length within a given range or temporarily become stable in length on a frame-by-frame basis, and accurate lengths of the frame periods are not known beforehand. The control device changes a total number of subframe periods to reconfigure the frame period with n subframe periods, where n is an integer of two or more, regardless of the frame period input, and causes the display of the image. The control device includes a signal processor that outputs an output video signal according to a first input video signal on a subframe-period-by-subframe-period basis; and a controller that supplies the output video signal output from the signal processor and a control signal for controlling an operation of the display panel to the display panel.

IPC Classes  ?

  • G09G 3/20 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix
  • G09G 3/3233 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element

19.

Control device, display apparatus, and control method

      
Application Number 17959756
Grant Number 12106725
Status In Force
Filing Date 2022-10-04
First Publication Date 2023-04-13
Grant Date 2024-10-01
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor
  • Ishii, Hiroaki
  • Kato, Toshiyuki

Abstract

A control device for a display panel for applications where a frame period in which a same image continues to be displayed varies from frame to frame within a certain range or the frame period is temporarily stable across frames and where a precise frame period is undetermined beforehand. The control device controls the display panel such that, when a frame having a length exceeding a preset number of lines is input, the display panel displays an image over a frame period corresponding to the preset number of lines and an added period added after the frame period. The added period includes one or more individual added periods each including a light emission period and a light extinction period, and the one or more individual added periods are each a period corresponding a predetermined number of lines.

IPC Classes  ?

  • G09G 3/3233 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
  • G09G 3/20 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix
  • G09G 3/3258 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the voltage across the light-emitting element
  • G09G 3/34 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix by control of light from an independent source

20.

DISPLAY DEVICE

      
Application Number 17900000
Status Pending
Filing Date 2022-08-31
First Publication Date 2023-03-16
Owner
  • JDI DESIGN AND DEVELOPMENT G.K. (Japan)
  • JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Ohara, Masanori

Abstract

A display device includes: a plurality of pixels; a plurality of write signal lines to which a control signal for selecting a pixel row in which a data voltage is to be written is supplied; a WS signal gate driver that supplies the control signal; a plurality of data voltage lines for writing a data voltage; a data driver that supplies the data voltage; a selector circuit that switches a data voltage line to which the data voltage is supplied; a selector control line to which a control signal for controlling the selector circuit is supplied; and a controller that supplies the control signal. The plurality of pixels include a first pixel and a second pixel belonging to a same pixel row. The WS signal gate driver supplies the control signal in a first direction. The controller supplies the control signal in a second direction opposite to the first direction.

IPC Classes  ?

  • G09G 3/20 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix
  • G09G 3/3233 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
  • G09G 3/3266 - Details of drivers for scan electrodes
  • G09G 3/3291 - Details of drivers for data electrodes in which the data driver supplies a variable data voltage for setting the current through, or the voltage across, the light-emitting elements

21.

Display device

      
Application Number 17822684
Grant Number 11985773
Status In Force
Filing Date 2022-08-26
First Publication Date 2023-03-02
Grant Date 2024-05-14
Owner
  • JDI DESIGN AND DEVELOPMENT G.K. (Japan)
  • JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor
  • Yamakita, Hiroyuki
  • Nanmoku, Teruo
  • Kawasaki, Masaki
  • Nakamura, Tetsuro
  • Itakura, Shunsuke

Abstract

Disclosed herein is a display device including a display panel having a display portion configured to display an image, a plate-shaped member having a first principal surface and a second principal surface, the display panel being disposed on a second principal surface side, the plate-shaped member including a screen portion disposed in a position corresponding to the display portion, an opaque frame member disposed at a peripheral edge of the screen portion, a bonding member that has transparency and is configured to bond the display panel and the plate-shaped member to each other, a holding member disposed on the second principal surface side of the plate-shaped member, and a fixing member configured to fix the frame member and the holding member to the plate-shaped member, the plate-shaped member further including a transparent peripheral edge portion disposed on an outside of the frame member.

IPC Classes  ?

  • H05K 5/02 - Casings, cabinets or drawers for electric apparatus Details
  • H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating

22.

Display device

      
Application Number 17823151
Grant Number 11977413
Status In Force
Filing Date 2022-08-30
First Publication Date 2023-03-02
Grant Date 2024-05-07
Owner
  • JDI DESIGN AND DEVELOPMENT G.K. (Japan)
  • JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Naito, Nobuo

Abstract

Provided is a display device including a display panel capable of being folded or rolled up, and a plate-shaped member placed on the display panel and capable of being folded or rolled up together with the display panel, the plate-shaped member including a bendable portion that is bent when the plate-shaped member is folded or rolled up together with the display panel, the bendable portion including a region group including a plurality of regions arranged in a bending direction along which the bendable portion is bent when the plate-shaped member is folded or rolled up together with the display panel, the bendable portion having openings with each of the regions having a plurality of through holes formed therein, an opening area ratio of the bendable portion in each of the regions being different from an opening area ratio of the bendable portion in an adjacent one of the regions.

IPC Classes  ?

  • G06F 1/16 - Constructional details or arrangements

23.

DISPLAY DEVICE

      
Application Number 17821969
Status Pending
Filing Date 2022-08-24
First Publication Date 2023-03-02
Owner
  • JDI DESIGN AND DEVELOPMENT G.K. (Japan)
  • JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Naito, Nobuo

Abstract

A display device includes a display panel capable of being rolled up or folded and a cover member that is placed upon the display panel and that is capable of being rolled up or folded together with the display panel. A thermal shrinkage rate of the cover member in a bending direction along which the display panel is bent when the display panel is rolled up is smaller than a thermal shrinkage rate of the cover member in a perpendicular direction that is perpendicular to the bending direction, or a thermal shrinkage rate of the cover member in a bending direction along which the display panel is bent when the display panel is folded is smaller than a thermal shrinkage rate of the cover member in a perpendicular direction that is perpendicular to the bending direction.

IPC Classes  ?

  • H01L 51/52 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED) - Details of devices

24.

Display apparatus

      
Application Number 17811156
Grant Number 11806975
Status In Force
Filing Date 2022-07-07
First Publication Date 2023-01-12
Grant Date 2023-11-07
Owner
  • JDI DESIGN AND DEVELOPMENT G.K. (Japan)
  • JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Seki, Takahiro

Abstract

Provided is a display apparatus including a display panel that is capable of being rolled up, and a protection member, the protection member including a back surface portion layered closer to a back surface of the display panel, a first folded portion folded toward a front surface of the display panel from one end of the back surface portion in an orthogonal direction orthogonal to a roll-up direction in which the display panel is rolled up, and a second folded portion folded toward the front surface from another end of the back surface portion in the orthogonal direction. In the display apparatus, the first folded portion includes a first front surface portion arranged at one end of the front surface in the orthogonal direction, and the second folded portion includes a second front surface portion arranged at another end of the front surface in the orthogonal direction.

IPC Classes  ?

  • B32B 3/02 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
  • B32B 5/18 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material
  • B32B 7/022 - Mechanical properties

25.

Display device

      
Application Number 17807377
Grant Number 12277008
Status In Force
Filing Date 2022-06-16
First Publication Date 2022-12-22
Grant Date 2025-04-15
Owner
  • JDI DESIGN AND DEVELOPMENT G.K. (Japan)
  • JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Seki, Takahiro

Abstract

Provided is a display device including a panel member that has a display panel and a magnetic member adhering to a back surface of the display panel and that is capable of being rolled up, and a magnet that is positioned on a side, opposite to the display panel, of the magnetic member and attracts the magnetic member, in a state where the panel member is drawn out.

IPC Classes  ?

  • G06F 1/16 - Constructional details or arrangements

26.

Control method and control device

      
Application Number 17877362
Grant Number 11705077
Status In Force
Filing Date 2022-07-29
First Publication Date 2022-11-24
Grant Date 2023-07-18
Owner
  • JDI DESIGN AND DEVELOPMENT G.K. (Japan)
  • JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Ishii, Hiroaki

Abstract

A control method is provided for suppressing a flicker phenomenon even if frame periods vary in length. The control method controls an emission period and an extinction period of a frame period, which is a period in which one image continues to be displayed. When a signal indicating start of a frame period is detected, as the frame period, n subframe periods that configure the frame period, where n is an integer greater than or equal to 2, are sequentially started from the first subframe period, after a predetermined period of time has elapsed since the detection of the signal. All of the n subframe periods are controlled to have a substantially same length determined in advance and to have a substantially same ratio between the emission period and the extinction period, determined in advance, the ratio being referred to as a duty ratio.

IPC Classes  ?

  • G09G 5/10 - Intensity circuits
  • G09G 3/34 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix by control of light from an independent source
  • G09G 3/20 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix

27.

Semiconductor device, display apparatus, and manufacturing method of semiconductor device

      
Application Number 17657066
Grant Number 12218243
Status In Force
Filing Date 2022-03-29
First Publication Date 2022-10-06
Grant Date 2025-02-04
Owner
  • JDI DESIGN AND DEVELOPMENT G.K. (Japan)
  • JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Sasaki, Atsushi

Abstract

A semiconductor device includes a conductive resin layer that includes an insulating resin and first fillers dispersed in the insulating resin and has first and second main surfaces, and an element layer that is arranged on the first main surface and includes a semiconductor element. The first fillers are each a fibrous conductive filler. The conductive resin layer has a first surface layer section that includes the first main surface and has a thickness which is 30% of a thickness of the conductive resin layer, a second surface layer section that includes the second main surface and has a thickness which is 30% of the thickness of the conductive resin layer, and an intermediate layer section arranged between the first and second surface layer sections. First fillers have a smaller directional angle relative to the first main surface in the first surface layer section than in the intermediate layer section.

IPC Classes  ?

  • H01L 29/786 - Thin-film transistors
  • B05D 1/26 - Processes for applying liquids or other fluent materials performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface
  • H01L 29/66 - Types of semiconductor device
  • H10K 59/12 - Active-matrix OLED [AMOLED] displays

28.

SELF-LUMINOUS DISPLAY PANEL AND SELF-LUMINOUS DISPLAY PANEL MANUFACTURING METHOD

      
Application Number 17701672
Status Pending
Filing Date 2022-03-23
First Publication Date 2022-09-29
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Osako, Takashi

Abstract

A display panel including auxiliary wiring on a substrate, pixel electrodes in a matrix above the substrate with gaps between the pixel electrodes, light emitting layers above the pixel electrodes, a functional layer above and continuous across the light emitting layers, and a common electrode above and continuous across the functional layer. The auxiliary wiring extends in plane directions of a main surface of the substrate below the pixel electrodes. Above the substrate, connection areas CA exist where the pixel electrodes are not present, in which the common electrode and the auxiliary wiring are electrically connected to each other. In plan view, portions of outer edges of the pixel electrodes facing outer edges of the connection areas CA are recessed inwards of the pixel electrodes.

IPC Classes  ?

  • H01L 27/32 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes
  • H01L 51/52 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED) - Details of devices

29.

DISPLAY APPARATUS

      
Application Number 17653350
Status Pending
Filing Date 2022-03-03
First Publication Date 2022-09-15
Owner
  • JDI DESIGN AND DEVELOPMENT G.K. (Japan)
  • JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Fujiyoshi, Jun

Abstract

A display apparatus includes a flexible first substrate, a first lower barrier layer, a thin film transistor layer, a first planarization layer, a first barrier layer, a first electrode, a second electrode, and a light emitting layer. In the display apparatus, a first through portion penetrating the first planarization layer is formed on the first planarization layer, a second through portion penetrating the first barrier layer and at least partially connected to the first through portion is formed on the first barrier layer, part of the first electrode fills the first through portion and the second through portion, and an area of the second through portion is equal to or greater than 30% of an area of the first electrode in plan view of the main surface of the first substrate.

IPC Classes  ?

  • H01L 51/00 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
  • H01L 51/52 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED) - Details of devices

30.

FLEXIBLE DISPLAY PANEL AND MANUFACTURING METHOD OF FLEXIBLE DISPLAY PANEL

      
Application Number 17650760
Status Pending
Filing Date 2022-02-11
First Publication Date 2022-08-18
Owner
  • JDI DESIGN AND DEVELOPMENT G.K. (Japan)
  • JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Noda, Makoto

Abstract

Provided is a flexible display panel including a display portion for display and a terminal portion around the display portion, in which each of the display portion and the terminal portion includes a flexible substrate including a first main surface and a second main surface on an opposite side of the first main surface, the flexible substrate containing resin, and a wiring layer formed on the first main surface of the flexible substrate, the terminal portion includes an inclined surface inclined toward the display portion from the second main surface side to the first main surface side, and a width of the inclined surface in plan view of the flexible display panel is equal to or greater than 13.1 μm.

IPC Classes  ?

  • G09F 9/30 - Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
  • H01L 51/00 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
  • H01L 27/32 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes
  • H01L 51/56 - Processes or apparatus specially adapted for the manufacture or treatment of such devices or of parts thereof

31.

Display device and method of driving display device

      
Application Number 17573150
Grant Number 11501710
Status In Force
Filing Date 2022-01-11
First Publication Date 2022-07-21
Grant Date 2022-11-15
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Ohara, Masanori

Abstract

A display device includes: a display portion including a plurality of pixel circuits arranged in a matrix; and a gate driver that outputs one driving pulse for each horizontal cycle. The plurality of pixel circuits each include subpixel circuits each including a light emitting element, a driving transistor that supplies a current to the light emitting element, a write transistor, a reference transistor, and an initialization transistor. The one driving pulse is input per vertical cycle from the gate driver to the initialization transistor included in each of a plurality of rows in the plurality of pixel circuits, and the one driving pulse input to the initialization transistors included in mutually different rows among the plurality of rows is input to each of the write transistor and the reference transistor, the mutually different rows being other than a row in which the write transistor and the reference transistor are included.

IPC Classes  ?

  • G09G 3/3233 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
  • G09G 3/3266 - Details of drivers for scan electrodes

32.

Display apparatus

      
Application Number 17648276
Grant Number 12013728
Status In Force
Filing Date 2022-01-18
First Publication Date 2022-07-21
Grant Date 2024-06-18
Owner
  • JDI DESIGN AND DEVELOPMENT G.K. (Japan)
  • JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Naito, Nobuo

Abstract

A display apparatus includes a display panel that is flexible, the display panel including a display surface and a back surface on a back side of the display surface, and a protection sheet attached to the back surface of the display panel and formed from woven fabric.

IPC Classes  ?

  • G06F 1/16 - Constructional details or arrangements

33.

Display apparatus

      
Application Number 17647148
Grant Number 11812565
Status In Force
Filing Date 2022-01-05
First Publication Date 2022-07-14
Grant Date 2023-11-07
Owner
  • JDI DESIGN AND DEVELOPMENT G.K. (Japan)
  • JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Seki, Takahiro

Abstract

A display apparatus includes a flexible display panel, a drive board that drives the display panel, a flexible board that connects the display panel and the drive board, a core to which the drive board is fixed, rolls up the display panel and the flexible board, and a connection member including a plate-shaped member that is layered on the display panel, connects the display panel and the core, and is rolled up around the core along with the display panel and the flexible board. The plate-shaped member includes a first part overlapping the display panel and curved when the display panel is rolled up around the core and a second part overlapping the flexible board and curved when the flexible board is rolled up around the core. In a roll-up direction, an elongation rate of the second part is smaller than that of the first part.

IPC Classes  ?

  • H05K 5/02 - Casings, cabinets or drawers for electric apparatus Details
  • H05K 5/00 - Casings, cabinets or drawers for electric apparatus
  • G06F 1/16 - Constructional details or arrangements

34.

ORGANIC EL ELEMENT, ORGANIC EL DISPLAY PANEL, AND ORGANIC EL ELEMENT MANUFACTURING METHOD

      
Application Number 17557072
Status Pending
Filing Date 2021-12-21
First Publication Date 2022-06-23
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor
  • Sekimoto, Yasuhiro
  • Ishino, Shinichiro
  • Akiyama, Toshiyuki
  • Oda, Tomohiko
  • Sato, Muneharu

Abstract

An organic EL element including an anode, a cathode, and a light emitting layer between the anode and the cathode. The light emitting layer includes a fluorescent material and a host material. A difference between a lowest unoccupied molecular orbital (LUMO) level of the fluorescent material and a highest occupied molecular orbital (HOMO) level of the fluorescent material is less than or equal to a difference between a LUMO level and a HOMO level of the host material. The LUMO level of the fluorescent material is equal to or higher than the LUMO level of the host material. The HOMO level of the fluorescent material is equal to or higher than the HOMO level of the host material, and a difference in energy level between the HOMO level of the fluorescent material and the HOMO level of the host material is 0.3 eV or less.

IPC Classes  ?

  • H01L 51/50 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED)
  • H01L 51/56 - Processes or apparatus specially adapted for the manufacture or treatment of such devices or of parts thereof

35.

ORGANIC EL ELEMENT, ORGANIC EL PANEL, AND ORGANIC EL ELEMENT MANUFACTURING METHOD

      
Application Number 17529277
Status Pending
Filing Date 2021-11-18
First Publication Date 2022-05-19
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor
  • Akiyama, Toshiyuki
  • Ishino, Shinichiro
  • Sekimoto, Yasuhiro
  • Sato, Muneharu
  • Kamiya, Takeshi
  • Oda, Tomohiko
  • Hasegawa, Mineki
  • Takata, Masakazu

Abstract

An organic EL element including an anode, a first functional layer including organic material, disposed above the anode, a second functional layer including organic material, disposed on and in contact with the first functional layer, a light emitting layer disposed on and in contact with the second functional layer, and a cathode disposed above the light emitting layer. A highest occupied molecular orbital (HOMO) level of the organic material of the second functional layer has an energy level at least 0.2 eV lower than that of a HOMO level of the organic material of the first functional layer, and film thickness of the second functional layer is 15 nm or less.

IPC Classes  ?

  • H01L 51/50 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED)
  • H01L 51/52 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED) - Details of devices
  • H01L 51/56 - Processes or apparatus specially adapted for the manufacture or treatment of such devices or of parts thereof

36.

Self-luminous display panel and self-luminous display panel manufacturing method

      
Application Number 17521896
Grant Number 11910696
Status In Force
Filing Date 2021-11-09
First Publication Date 2022-05-12
Grant Date 2024-02-20
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor
  • Miyajima, Akio
  • Tsuchiya, Michitoshi
  • Kato, Hiroki
  • Noda, Makoto
  • Okubo, Masaichi
  • Amatsuchi, Mario

Abstract

A self-luminous display panel 10 in which self-luminous elements 2 are arranged on a plane, wherein each of the self-luminous elements includes: a pair of electrodes 13, 20 disposed facing each other, an electrode of the pair of electrodes including a metal layer 20A; functional layers 15, 16, 17, 18, 19 including a light emitting layer 17, disposed between the pair of electrodes; and a sealing layer 21 that covers the pair of electrodes and the functional layers from a direction. The self-luminous elements include a repaired self-luminous element 2′. The repaired self-luminous element includes a foreign object FO among the functional layers. The electrode including the metal layer has a high resistance portion 201 surrounding, in plan view, an area containing the foreign object, and has a thickened portion 202 of the metal layer at an outer edge, in plan view, of the high resistance portion.

IPC Classes  ?

  • H01L 51/52 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED) - Details of devices
  • H01L 51/56 - Processes or apparatus specially adapted for the manufacture or treatment of such devices or of parts thereof
  • H01L 27/32 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes
  • H10K 71/00 - Manufacture or treatment specially adapted for the organic devices covered by this subclass
  • H10K 59/12 - Active-matrix OLED [AMOLED] displays
  • H10K 50/822 - Cathodes characterised by their shape
  • H10K 50/826 - Multilayers, e.g. opaque multilayers
  • H10K 50/84 - PassivationContainersEncapsulations
  • H10K 59/35 - Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
  • H10K 102/00 - Constructional details relating to the organic devices covered by this subclass
  • H10K 50/828 - Transparent cathodes, e.g. comprising thin metal layers

37.

Display panel and display apparatus

      
Application Number 17421242
Grant Number 11943958
Status In Force
Filing Date 2020-01-08
First Publication Date 2022-04-21
Grant Date 2024-03-26
Owner
  • JDI DESIGN AND DEVELOPMENT G.K. (Japan)
  • JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor
  • Ishiyama, Yuichiro
  • Seki, Takahiro

Abstract

A display panel according to one embodiment of the disclosure includes: a flexible substrate; a plurality of self-luminescent elements; a plurality of TFT circuits provided between the flexible substrate and the plurality of self-luminescent elements; a first inorganic film covering each of the TFT circuits; a second inorganic film covering each of the self-luminescent elements; and a resin layer covering the second inorganic film and covering at least a portion of the first inorganic film in contact with an end portion of the second inorganic film. The first inorganic film is provided between the plurality of TFT circuits and the plurality of self-luminescent elements, and has a step portion. The step portion is a thinned portion of the first inorganic film opposed to an end portion of the flexible substrate.

IPC Classes  ?

  • H01L 29/08 - Semiconductor bodies characterised by the shapes, relative sizes, or dispositions of the semiconductor regions with semiconductor regions connected to an electrode carrying current to be rectified, amplified, or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
  • H10K 50/844 - Encapsulations
  • H10K 59/12 - Active-matrix OLED [AMOLED] displays
  • H10K 77/10 - Substrates, e.g. flexible substrates

38.

Pixel circuit driving method, pixel circuit, and display device

      
Application Number 17495251
Grant Number 11631372
Status In Force
Filing Date 2021-10-06
First Publication Date 2022-04-14
Grant Date 2023-04-18
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor
  • Yamamoto, Tetsuro
  • Kokuda, Kenji
  • Tsuge, Hitoshi
  • Tanaka, Teppei

Abstract

A pixel circuit driving method is a method for driving a pixel circuit that includes a drive transistor that supplies a current corresponding to a signal voltage supplied via a signal line, a write transistor connected between the signal line and a gate electrode of the drive transistor, and an organic EL element that emits light in accordance with the current. The pixel circuit driving method includes supplying a reference potential to the gate electrode of the drive transistor before a threshold correction preparation operation of making a gate-source voltage of the drive transistor higher than a threshold voltage of the drive transistor.

IPC Classes  ?

  • G09G 3/3233 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element

39.

LIGHT-EMITTING PANEL, ELECTRONIC APPARATUS, AND METHOD OF MANUFACTURING LIGHT-EMITTING PANEL

      
Application Number 17539202
Status Pending
Filing Date 2021-12-01
First Publication Date 2022-03-24
Owner
  • JDI DESIGN AND DEVELOPMENT G.K. (Japan)
  • JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Nishimura, Masaki

Abstract

A light-emitting panel that includes a plurality of pixels, a plurality of first regulators, each of which extends in a first direction and defines each two of the pixels that are adjacent to each other in a second direction orthogonal to the first direction, and a plurality of second regulators, each of which extends in the second direction and defines each two of the pixels that are adjacent to each other in the first direction, the plurality of pixels including a plurality of first pixels arranged along the first direction and a plurality of second pixels arranged along the first direction, the plurality of first pixels and the plurality of second pixels sharing a light-emitting layer, each length of the plurality of second pixels being smaller than each length of the plurality of first pixels in the first direction.

IPC Classes  ?

  • H01L 27/32 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes
  • H01L 51/00 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof

40.

Display unit

      
Application Number 17534474
Grant Number 11678539
Status In Force
Filing Date 2021-11-24
First Publication Date 2022-03-17
Grant Date 2023-06-13
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor
  • Terai, Yasuhiro
  • Shinokawa, Yasuharu
  • Yamada, Jiro
  • Murai, Atsuhito
  • Kondo, Masahiko
  • Maeda, Noriteru

Abstract

A display unit includes a substrate including a pixel region including a plurality of pixels and a peripheral region. The display unit includes a plurality of first electrodes, wherein each of the plurality of first electrodes is in a corresponding pixel of the plurality of pixels. The display unit includes a second electrode opposed to the first electrode, wherein the second electrode is common for all of the plurality of pixels. The display unit includes an organic layer between the second electrode and the plurality of first electrodes, wherein the organic layer includes a light-emitting layer. The display unit includes a wiring layer between the substrate and the plurality of first electrodes. The display unit includes an auxiliary electrically-conductive layer including an organic electrically-conductive material, wherein the auxiliary electrically-conductive layer is electrically coupled to the second electrode. The auxiliary electrically-conductive layer is in a recess in the wiring layer.

IPC Classes  ?

  • H10K 59/131 - Interconnections, e.g. wiring lines or terminals
  • H10K 50/828 - Transparent cathodes, e.g. comprising thin metal layers
  • H10K 50/824 - Cathodes combined with auxiliary electrodes
  • H10K 50/86 - Arrangements for improving contrast, e.g. preventing reflection of ambient light
  • H01L 27/12 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body
  • H01L 27/32 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes
  • H01L 51/52 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED) - Details of devices
  • H10K 50/818 - Reflective anodes, e.g. ITO combined with thick metallic layers
  • H10K 102/00 - Constructional details relating to the organic devices covered by this subclass

41.

Display device and display device driving method

      
Application Number 17466154
Grant Number 11450278
Status In Force
Filing Date 2021-09-03
First Publication Date 2022-03-10
Grant Date 2022-09-20
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor
  • Iwauchi, Eiji
  • Sawa, Kazuki
  • Yoneda, Kazuhiro

Abstract

A display device includes: a luminance converter which converts input gradation value into a corresponding target luminance value; a luminance correction calculator which calculates output gradation value from the target luminance value using efficiency residual ratio representing a deterioration degree of a light-emitting element, and calculates a corrected luminance value therefrom; a current stress calculator which converts current stress amount on a light-emitting element calculated from the corrected luminance value into current stress amount when first reference current flows through the light-emitting element, and accumulates this to calculate an accumulated first stress amount; a CB stress calculator which converts CB stress amount on the light-emitting element into current stress amount when second reference current flows through the light-emitting element, and accumulates this to calculate an accumulated second stress amount; and an efficiency residual ratio calculator which updates the efficiency residual ratio, using the accumulated first and second stress amounts calculated.

IPC Classes  ?

  • G09G 3/3233 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element

42.

Display device and display device driving method

      
Application Number 17406433
Grant Number 11568812
Status In Force
Filing Date 2021-08-19
First Publication Date 2022-03-03
Grant Date 2023-01-31
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor
  • Iwauchi, Eiji
  • Sawa, Kazuki
  • Yoneda, Kazuhiro

Abstract

A display device includes: a luminance converter which converts input gradation value into a corresponding target luminance value; a luminance correction calculator which calculates output gradation value from the target luminance value and calculates a corrected luminance value from the output gradation value, using an efficiency residual ratio which is an index representing the light-emitting element deterioration degree; a current stress calculator which converts current stress amount on the light-emitting element calculated from the corrected luminance value into current stress amount when reference current flows through the light-emitting element, and calculates the accumulated current stress amount; a temperature stress calculator which converts temperature stress amount on the light-emitting element under environmental temperature into temperature stress amount on the light-emitting element under reference temperature, and calculates the accumulated current stress amount; and an efficiency residual ratio calculator which updates the efficiency residual ratio, using the accumulated current and temperature stress amounts.

IPC Classes  ?

  • G09G 3/3233 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element

43.

Optical communication system

      
Application Number 17421144
Grant Number 11496216
Status In Force
Filing Date 2020-01-08
First Publication Date 2022-02-24
Grant Date 2022-11-08
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Sasaki, Atsushi

Abstract

The optical communication system includes a transmitter including a display panel which has a curved surface and is capable of emitting light, and a transmission controller which causes the display panel to emit light representing an information signal; and a receiver including an image sensor which receives the light emitted from the display panel, and a reception controller which extracts the information signal from the light received by the image sensor. The display panel may be a transparent display panel which allows background light to pass through.

IPC Classes  ?

  • H04B 10/00 - Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
  • H04B 10/116 - Visible light communication

44.

Display panel and display device including adhesive layer for increasing impact resistance

      
Application Number 17398441
Grant Number 12207484
Status In Force
Filing Date 2021-08-10
First Publication Date 2022-02-24
Grant Date 2025-01-21
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor
  • Naito, Nobuo
  • Seki, Takahiro

Abstract

The display panel is a display panel that is flexible, including: an EL structure layer including a plurality of EL elements arranged two-dimensionally; a foamed resin layer on a side of the EL structure layer that is opposite to a light emitting surface of the EL structure layer; a metal layer provided between the EL structure layer and the foamed resin layer; and a first adhesive layer provided between the EL structure layer and the metal layer and comprises an adhesive having an elastic modulus of 90 kPa or more.

IPC Classes  ?

  • H10K 50/11 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
  • H10K 50/842 - Containers
  • H10K 102/00 - Constructional details relating to the organic devices covered by this subclass

45.

Luminescent display device

      
Application Number 16671675
Grant Number RE048931
Status In Force
Filing Date 2019-11-01
First Publication Date 2022-02-15
Grant Date 2022-02-15
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Ono, Shinya

Abstract

A luminescent display device includes a substrate and a thin-film transistor above the substrate. The thin-film transistor includes a semiconductor layer, a gate insulating film on the semiconductor layer, a gate electrode on the gate insulating film, a source electrode, and a drain electrode. The luminescent display device further includes an interlayer insulating film on the gate electrode, a first capacitor electrode on the interlayer insulating film in a region above the gate electrode, and a luminescent element configured to be driven by a driver to produce luminescence. The driver includes the thin-film transistor, and the first capacitor electrode and the gate electrode constitute a capacitor.

IPC Classes  ?

  • G09G 3/22 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources
  • H01L 27/12 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body
  • G09G 3/32 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
  • H01L 27/32 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes
  • G09G 3/3233 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element

46.

DISPLAY PANEL AND DISPLAY DEVICE

      
Application Number 17392272
Status Pending
Filing Date 2021-08-03
First Publication Date 2022-02-10
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Fukuda, Toshihiro

Abstract

A display panel including pixels each including a self-luminous element and a color filter, including a green light emitting element among the self-luminous elements. The green light emitting element has an optical resonator structure in which a light transmissive metal thin film electrode, a green light emitting layer, and a light reflective electrode are disposed in this order with the light transmissive metal thin film electrode closest to one of the color filters corresponding to the green light emitting element, in order to enhance light intensity of a first wavelength, and the one of the color filters has a light transmittance of 50% or less for light having a second wavelength that is longer than the first wavelength and has a higher visibility characteristic as a green color component than the first wavelength.

IPC Classes  ?

  • H01L 27/32 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes
  • H01L 51/52 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED) - Details of devices

47.

Display device and method for driving display device

      
Application Number 17381512
Grant Number 11373595
Status In Force
Filing Date 2021-07-21
First Publication Date 2022-02-03
Grant Date 2022-06-28
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Iwauchi, Eiji

Abstract

A display device includes: luminance converter that converts an input gradation value into a target luminance value corresponding to the input gradation value; correction calculator that calculates an output gradation value from the target luminance value and calculates a corrected luminance value from the output gradation value using an efficiency residual rate; cumulative stress calculator that updates the efficiency residual rate using a cumulative stress amount obtained by converting a stress amount on the light emitting element calculated from the corrected luminance value into a first stress amount at a reference current and accumulating a second stress amount obtained by converting the converted first stress amount according to a frame rate; and stress amount converter that converts the first stress amount into the second stress amount by multiplying the first stress amount by a conversion coefficient corresponding to the frame rate obtained from the video signal.

IPC Classes  ?

  • G09G 3/3233 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element

48.

Organic EL element having one functional layer with NaF and the other functional layer with Yb

      
Application Number 17372520
Grant Number 11758749
Status In Force
Filing Date 2021-07-12
First Publication Date 2021-11-04
Grant Date 2023-09-12
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor
  • Mishima, Kosuke
  • Sakamoto, Koyo
  • Sato, Muneharu

Abstract

An organic electroluminescence element includes an anode, an organic light emitting layer disposed on an upper side of the anode, a first functional layer disposed over the organic light emitting layer and including NaF, a second functional layer disposed over the first functional layer and including an organic material containing Yb, and a cathode disposed on an upper side of the second functional layer. A method of manufacturing an organic electroluminescence element, includes forming an anode, forming an organic light emitting layer on an upper side of the anode, forming a first functional layer including NaF over the organic light emitting layer, forming a second functional layer including an organic material containing Yb over the first functional layer, and forming a cathode on an upper side of the second functional layer.

IPC Classes  ?

  • H10K 50/17 - Carrier injection layers
  • H10K 50/818 - Reflective anodes, e.g. ITO combined with thick metallic layers
  • H10K 50/828 - Transparent cathodes, e.g. comprising thin metal layers
  • H10K 59/35 - Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
  • H10K 71/00 - Manufacture or treatment specially adapted for the organic devices covered by this subclass
  • H10K 102/00 - Constructional details relating to the organic devices covered by this subclass

49.

Display unit with moisture proof film outside of seal section and electronic apparatus with said display unit

      
Application Number 17379041
Grant Number 11800741
Status In Force
Filing Date 2021-07-19
First Publication Date 2021-11-04
Grant Date 2023-10-24
Owner
  • JDI DESIGN AND DEVELOPMENT G.K. (Japan)
  • JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor
  • Saito, Takatoshi
  • Izumi, Kenichi
  • Teraguchi, Shinichi
  • Nakadaira, Tadakatsu
  • Yokozeki, Mikihiro
  • Nishi, Shota
  • Kodate, Manabu

Abstract

A display unit including a first substrate and a second substrate that are disposed to face each other, a first organic insulating layer on the first substrate, a plurality of light-emitting elements arrayed in a display region, the display region on the first organic insulating layer and facing the second substrate and a first moisture-proof film covering the first organic insulating layer in a peripheral region, in which the peripheral region is provided on the first substrate and surrounds the display region.

IPC Classes  ?

50.

Display apparatus

      
Application Number 17232915
Grant Number 11373594
Status In Force
Filing Date 2021-04-16
First Publication Date 2021-10-28
Grant Date 2022-06-28
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Ohara, Masanori

Abstract

A display apparatus includes pixels two-dimensionally arranged. Each of the pixels includes a light-emitting element, a capacitor which retains a voltage of a data signal, a drive transistor which feeds a current according to the voltage of the data signal to the light-emitting element, a first write transistor connected between a data signal line and a gate electrode of the drive transistor, a second write transistor connected between the first write transistor and a gate electrode of the drive transistor, and a counter transistor including a source electrode and a drain electrode, one of the source electrode and the drain electrode being connected between the first write transistor and the second write transistor. The other of the source electrode and the drain electrode of the counter transistor is connected to a counter voltage line which feeds a counter voltage.

IPC Classes  ?

  • G09G 3/3233 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
  • G09G 3/3266 - Details of drivers for scan electrodes
  • G09G 3/3283 - Details of drivers for data electrodes in which the data driver supplies a variable data current for setting the current through, or the voltage across, the light-emitting elements

51.

Display and electronic apparatus

      
Application Number 17201573
Grant Number 11678508
Status In Force
Filing Date 2021-03-15
First Publication Date 2021-09-16
Grant Date 2023-06-13
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor
  • Seki, Takahiro
  • Yamazaki, Katsumasa

Abstract

A display includes a display panel, a shock dispersion layer, a strain relaxation layer, and a shock absorption layer. The shock dispersion layer is provided on a light-extraction side of the display panel and has a Young's modulus of 50 GPa or greater. The strain relaxation layer is provided between the shock dispersion layer and the display panel and has a Young's modulus lower than the Young's modulus of the shock dispersion layer. The shock absorption layer is provided between the strain relaxation layer and the display panel and has a storage modulus of 10 kPa or greater and 1 MPa or less at a room temperature.

IPC Classes  ?

52.

Functional layer forming ink and self-luminous element manufacturing method

      
Application Number 17121779
Grant Number 11508907
Status In Force
Filing Date 2020-12-15
First Publication Date 2021-06-17
Grant Date 2022-11-22
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Takata, Masakazu

Abstract

An ink used in forming a functional layer of a self-luminous element by a printing method, the ink including a functional material and a mixed solvent. The mixed solvent includes solvents each having different vapor pressures. The functional material is dissolved or dispersed in the mixed solvent. A solvent that has a lowest vapor pressure among the solvents has a viscosity of at least 53 mPa·s, and a viscosity of the mixed solvent is 15 mPa·s or less.

IPC Classes  ?

  • H01L 51/00 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
  • H01L 51/56 - Processes or apparatus specially adapted for the manufacture or treatment of such devices or of parts thereof
  • H01L 27/32 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes
  • H01L 51/50 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED)

53.

Self-luminous display panel and method of manufacturing self-luminous display panel

      
Application Number 17111535
Grant Number 11672140
Status In Force
Filing Date 2020-12-04
First Publication Date 2021-06-10
Grant Date 2023-06-06
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor
  • Okigawa, Akifumi
  • Harada, Kenji

Abstract

A self-luminous display panel including a first substrate, an insulating resin layer, self-luminous elements, a sealing layer, an attachment layer, and a second substrate, and the insulating resin layer includes an inner insulating sublayer and an outer insulating sublayer with a groove therebetween, the groove being provided in a peripheral region and surrounding an image display region, the attachment layer includes a peripheral sealing layer that is positioned inside a peripheral portion of the second substrate and a joining layer that is positioned in a range surrounded by the peripheral sealing layer, and when viewed in a cross section perpendicular to a main surface of the first substrate and across the groove, the peripheral sealing layer is at least partially positioned on the outer insulating sublayer, and an inner end portion of the peripheral sealing layer extends to the groove.

IPC Classes  ?

  • H01L 51/52 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED) - Details of devices
  • H01L 27/32 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes
  • H01L 51/56 - Processes or apparatus specially adapted for the manufacture or treatment of such devices or of parts thereof

54.

Organic el element, and organic el display panel including light- emitting layer and functional layer with specific hole and electron mobilities relationship

      
Application Number 16953370
Grant Number 11700734
Status In Force
Filing Date 2020-11-20
First Publication Date 2021-06-03
Grant Date 2023-07-11
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor
  • Akiyama, Toshiyuki
  • Sekimoto, Yasuhiro
  • Sato, Muneharu
  • Ishino, Shinichiro
  • Oda, Tomohiko
  • Hasegawa, Mineki

Abstract

An organic electroluminescence element including an anode, a light-emitting layer, a functional layer, and a cathode stacked in this order. The light-emitting layer and the functional layer are in contact with each other. Hole mobility of the light-emitting layer is greater than electron mobility of the light-emitting layer. The electron mobility of the light-emitting layer is equal to or greater than an effective electron mobility of the functional layer. A highest occupied molecular orbital (HOMO) level of a first functional material included in the light-emitting layer is at least 0.4 eV greater than a HOMO level of a second functional material included in the functional layer.

IPC Classes  ?

  • H10K 50/11 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
  • H10K 71/00 - Manufacture or treatment specially adapted for the organic devices covered by this subclass
  • H10K 101/40 - Interrelation of parameters between multiple constituent active layers or sublayers, e.g. HOMO values in adjacent layers
  • H10K 50/16 - Electron transporting layers
  • H10K 59/35 - Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
  • H10K 101/30 - Highest occupied molecular orbital [HOMO], lowest unoccupied molecular orbital [LUMO] or Fermi energy values

55.

Self-luminous element and self-luminous display panel

      
Application Number 17104025
Grant Number 11508928
Status In Force
Filing Date 2020-11-25
First Publication Date 2021-06-03
Grant Date 2022-11-22
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Mishima, Kosuke

Abstract

A self-luminous element includes: a pixel electrode; a light-emitting layer that is disposed above the pixel electrode and includes a light-emitting material; a first functional layer that is disposed on the light-emitting layer and includes a metal fluoride; a second functional layer that is disposed on the first functional layer and includes a first organic material having at least one of electron transport properties and electron injection properties; and a counter electrode that is disposed above the second functional layer. The second functional layer does not include at least one metallic element selected from the group consisting of alkali metals, alkaline earth metals, and rare earth metals that reduce the metal fluoride.

IPC Classes  ?

  • H01L 51/50 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED)
  • H01L 51/56 - Processes or apparatus specially adapted for the manufacture or treatment of such devices or of parts thereof
  • G09G 3/3258 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the voltage across the light-emitting element
  • H01L 27/32 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes

56.

Display panel and display panel manufacturing method

      
Application Number 17088602
Grant Number 11469389
Status In Force
Filing Date 2020-11-04
First Publication Date 2021-05-20
Grant Date 2022-10-11
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor
  • Yoneda, Kazuhiro
  • Komatsu, Takahiro

Abstract

A display panel including a power supplying auxiliary electrode above the substrate in at least one gap among gaps between pixel electrodes in row and column directions, not in contact with the pixel electrodes, extending in the row and/or column direction. An intermediate layer is on or above light-emitting layers and the auxiliary electrode, and includes a fluoride of an alkali metal or an alkaline earth metal. A functional layer is on or above the intermediate layer, and includes an organic material that facilitates electron transport and/or facilitates electron injection and a rare earth metal dopant. A counter electrode is on or above the functional layer. Further, 1≤x≤3, 20≤y≤40, and y≥10x+10, where x is film thickness of the intermediate layer in nanometers, and y is percentage by weight of the rare earth metal dopant in the functional layer.

IPC Classes  ?

  • H01L 51/52 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED) - Details of devices
  • H01L 51/56 - Processes or apparatus specially adapted for the manufacture or treatment of such devices or of parts thereof
  • H01L 27/32 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes

57.

Control method and control device

      
Application Number 17091654
Grant Number 11436988
Status In Force
Filing Date 2020-11-06
First Publication Date 2021-05-13
Grant Date 2022-09-06
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Ishii, Hiroaki

Abstract

A control method or the like is provided capable of suppressing a flicker phenomenon even if frame periods vary in length. The control method is for controlling an emission period and an extinction period of a frame period, which is a period in which one image continues to be displayed. When a signal indicating start of a frame period is detected, as the frame period, n subframe periods that configure the frame period, where n is an integer greater than or equal to 2, are sequentially started from the first subframe period, after a predetermined period of time has elapsed since the detection of the signal. All of the n subframe periods are controlled to have a substantially same length determined in advance and to have a substantially same ratio between the emission period and the extinction period, determined in advance, the ratio being referred to as a duty ratio.

IPC Classes  ?

  • G09G 5/10 - Intensity circuits
  • G09G 3/34 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix by control of light from an independent source
  • G09G 3/20 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix

58.

Functional layer forming ink and self-luminous element manufacturing method

      
Application Number 17092456
Grant Number 11653553
Status In Force
Filing Date 2020-11-09
First Publication Date 2021-05-13
Grant Date 2023-05-16
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Takata, Masakazu

Abstract

A functional layer forming ink used in forming a functional layer of the self-luminous element by a printing method, the ink including functional material dissolved or dispersed in a mixed solvent including solvents having different boiling points. When one or more solvents are selected from the solvents of the mixed solvent in descending order of boiling point until a mass ratio of the selection to the mixed solvent is a defined ratio or more, the one or more solvents in the selection are included in a solvent group of solvents that have a contact angle of 5° or less with respect to a defined resin material.

IPC Classes  ?

  • H01L 51/00 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
  • H01L 51/56 - Processes or apparatus specially adapted for the manufacture or treatment of such devices or of parts thereof
  • H01L 27/32 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes
  • C09D 11/107 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from unsaturated acids or derivatives thereof
  • C09D 11/36 - Inkjet printing inks based on non-aqueous solvents
  • C09D 11/033 - Printing inks characterised by features other than the chemical nature of the binder characterised by the solvent
  • H01L 51/50 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED)

59.

Display device including flexible substrate, polarizing plate, and warpage suppressing member

      
Application Number 17014574
Grant Number 11532796
Status In Force
Filing Date 2020-09-08
First Publication Date 2021-05-06
Grant Date 2022-12-20
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor
  • Noda, Makoto
  • Kato, Hiroki

Abstract

A display device includes a flexible substrate, a display device layer, a polarizing plate, and a warpage suppressing member. The flexible substrate has a front surface on a front surface side and a back surface on a back surface side. The display device layer is provided on the front surface side of the flexible substrate and includes a self-luminescent element. The polarizing plate is opposed to the flexible substrate across the display device layer and has a predetermined dimensional change characteristic corresponding to environmental change. The warpage suppressing member is provided on the back surface side of the flexible substrate and has a dimensional change characteristic of the same tendency as the dimensional change characteristic of the polarizing plate. The warpage suppressing member is configured to cancel at least a portion of warping stress of the polarizing plate to be applied to the flexible substrate.

IPC Classes  ?

  • H01L 51/00 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
  • H01L 51/52 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED) - Details of devices
  • G09F 9/30 - Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements

60.

Pixel circuit and display device

      
Application Number 17004824
Grant Number 11164521
Status In Force
Filing Date 2020-08-27
First Publication Date 2021-04-29
Grant Date 2021-11-02
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Yamamoto, Tetsuro

Abstract

A pixel circuit includes: a driver transistor that supplies a current dependent on a voltage supplied via a signal line; a write transistor connected between the signal line and a gate electrode of the driver transistor; a first organic EL element connected to one electrode of the driver transistor, the one electrode being one of a drain electrode and a source electrode of the driver transistor; a switching transistor connected to the one electrode of the driver transistor; and a second organic EL element connected to the one electrode of the driver transistor via the switching transistor. The pixel circuit performs mobility correction that corrects a mobility of the driver transistor. The switching transistor turns ON after a write operation that writes the voltage supplied via the signal line and turns OFF before an operation that performs the mobility correction of the driver transistor begins.

IPC Classes  ?

  • G09G 3/3233 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
  • G09G 3/20 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix

61.

Pixel circuit and display device

      
Application Number 17006023
Grant Number 11270639
Status In Force
Filing Date 2020-08-28
First Publication Date 2021-04-29
Grant Date 2022-03-08
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Yamamoto, Tetsuro

Abstract

A pixel circuit configured to emit light based on an image signal includes: a light emitting element (organic EL element); a driver transistor configured to adjust current supplied to the light emitting element; and a write transistor connected between a signal line to which the image signal is applied and the driver transistor. The driver transistor includes: a gate electrode; a counter electrode disposed opposite the gate electrode; and a channel disposed between the gate electrode and the counter electrode. A potential applied to the counter electrode in a write period in which the write transistor conducts current in a state in which the image signal is applied to the signal line reduces a resistance value of the driver transistor to lower value than a potential applied to the counter electrode in an emission period of the light emitting element does.

IPC Classes  ?

  • G09G 3/3233 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element

62.

Display apparatus, manufacturing method of display apparatus, and electronic device

      
Application Number 17106942
Grant Number 11257890
Status In Force
Filing Date 2020-11-30
First Publication Date 2021-04-15
Grant Date 2022-02-22
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor
  • Tamonoki, Shinya
  • Sagawa, Hiroshi

Abstract

A display apparatus including: a display region provided with a plurality of pixel portions; wires installed to the respective pixel portions within the display region from an outside of the display region for transmitting a signal to drive the respective pixel portions; connection pads provided on the outside of the display region and serving as input portions to provide the wires with a signal while electrically conducting with the wires; switch elements provided on the outside of the display region in a middle of the wires; and a light shielding covering portion shielding the switch elements from light and formed to cover the connection pads while electrically conducting with the connection pads.

IPC Classes  ?

  • H01L 27/32 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes
  • H01L 33/08 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a plurality of light emitting regions, e.g. laterally discontinuous light emitting layer or photoluminescent region integrated within the semiconductor body
  • H01L 51/00 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
  • H01L 51/56 - Processes or apparatus specially adapted for the manufacture or treatment of such devices or of parts thereof
  • H01L 51/52 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED) - Details of devices
  • H01L 27/12 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body

63.

Self-luminous display panel having different optical distances between light-shielding film and light emission reference points depending on light emission color

      
Application Number 17061598
Grant Number 11864443
Status In Force
Filing Date 2020-12-09
First Publication Date 2021-04-08
Grant Date 2024-01-02
Owner JDI DESIGN AND DEVELOPMENT G. K. (Japan)
Inventor Fukuoka, Kenta

Abstract

A self-luminous display panel in which pixels composed of sub-pixels are arranged, including light-emitting elements and a light-shielding film. The light-emitting elements correspond one-to-one with the sub-pixels, each sub-pixel in a pixel emitting a different color of light. The light-shielding film is provided with openings at positions corresponding to the light-emitting elements in plan view, downstream in a light emission direction of the light-emitting elements. Optical distances between the light-shielding film and light emission reference points of the light-emitting elements are different, depending on light emission color of the light-emitting elements.

IPC Classes  ?

  • H10K 59/35 - Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
  • H10K 50/852 - Arrangements for extracting light from the devices comprising a resonant cavity structure, e.g. Bragg reflector pair
  • H10K 50/86 - Arrangements for improving contrast, e.g. preventing reflection of ambient light
  • H10K 71/00 - Manufacture or treatment specially adapted for the organic devices covered by this subclass
  • H10K 59/12 - Active-matrix OLED [AMOLED] displays
  • H10K 59/38 - Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]

64.

Display device

      
Application Number 17002157
Grant Number 11508300
Status In Force
Filing Date 2020-08-25
First Publication Date 2021-04-08
Grant Date 2022-11-22
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Homura, Shigeo

Abstract

A display device includes: pixels arranged in a matrix; a plurality of write signal lines for selecting a pixel row to which a data voltage is to be written; a gate driver that supplies a gate signal; a plurality of data signal lines for writing the data voltage; a data driver that supplies the data voltage; a data selector circuit that supplies, per at least one data signal line by time division, the data voltage; and a controller. Each of the pixels includes a light-emitting element, a capacitor element, and a drive transistor that supplies a current in accordance with the voltage held by the capacitor element to the light-emitting element. The controller causes the gate driver and the data driver to perform an initialization operation on pixels in a second pixel row after a period during which a write operation is performed on pixels in a first pixel row.

IPC Classes  ?

  • G09G 3/3233 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
  • G09G 3/3291 - Details of drivers for data electrodes in which the data driver supplies a variable data voltage for setting the current through, or the voltage across, the light-emitting elements

65.

Self-luminous display panel having different distances between openings of light-shielding film and light-emitting elements depending on light emission color of the light-emitting elements

      
Application Number 17062643
Grant Number 11594707
Status In Force
Filing Date 2020-10-05
First Publication Date 2021-04-08
Grant Date 2023-02-28
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Fukuoka, Kenta

Abstract

a of the light-shielding film 133 and defined points of the light-emitting elements 100 are different depending on light emission color of the light-emitting elements 100, due to different widths of portions of the column banks 122Y adjacent to the light-emitting elements 100.

IPC Classes  ?

  • H01L 51/52 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED) - Details of devices
  • H01L 27/32 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes
  • H01L 51/56 - Processes or apparatus specially adapted for the manufacture or treatment of such devices or of parts thereof

66.

Display panel utilizing self-luminous elements and method of manufacturing same

      
Application Number 17027727
Grant Number 11462707
Status In Force
Filing Date 2020-09-22
First Publication Date 2021-04-01
Grant Date 2022-10-04
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor
  • Katagiri, Hiroshi
  • Komatsu, Takahiro

Abstract

A display panel including a substrate, anodes disposed on or above the substrate, light-emitting layers disposed on or above the anodes, a first intermediate layer disposed on or above the light-emitting layers, a second intermediate layer disposed on the first intermediate layer, and a cathode disposed on or above the second intermediate layer. The first intermediate layer includes a fluoride of a first metal or a complex of the first metal. The second intermediate layer includes a second metal. The anodes are light-transmissive and the cathode is light-reflective, or the anodes are light-reflective and the cathode is light-transmissive. The first metal is selected from a group consisting of alkali metals and alkaline earth metals. The second metal is selected from rare earth metals.

IPC Classes  ?

  • H01L 51/50 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED)
  • H01L 51/52 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED) - Details of devices
  • H01L 51/56 - Processes or apparatus specially adapted for the manufacture or treatment of such devices or of parts thereof

67.

Self-luminous element, self-luminous panel, and self-luminous panel manufacturing method

      
Application Number 17035779
Grant Number 11495777
Status In Force
Filing Date 2020-09-29
First Publication Date 2021-04-01
Grant Date 2022-11-08
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Kirita, Shina

Abstract

A light-emitting element includes: a light-reflective first electrode; a light-emitting layer above the first electrode; a light-transmissive second electrode above the light-emitting layer; a first light-transmissive layer on the second electrode; and a second light-transmissive layer on the first layer. First optical cavity structure is formed between surface of the first electrode facing the light-emitting layer and surface of the second electrode facing the light-emitting layer. The first optical cavity structure corresponds to, as peak wavelength, first wavelength longer than peak wavelength of light emitted from the light-emitting layer. Second optical cavity structure is formed between the surface of the first electrode facing the light-emitting layer and an interface between the first layer and the second layer. The second optical cavity structure corresponds to, as peak wavelength, second wavelength shorter than the first wavelength. The first and second layers differ in refractive index from each other by 0.3 or greater.

IPC Classes  ?

  • H01L 51/52 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED) - Details of devices
  • H01L 27/32 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes
  • H01L 51/00 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
  • H01L 51/56 - Processes or apparatus specially adapted for the manufacture or treatment of such devices or of parts thereof

68.

Current limiting circuit, display device, and current limiting method

      
Application Number 17027090
Grant Number 11107403
Status In Force
Filing Date 2020-09-21
First Publication Date 2021-03-25
Grant Date 2021-08-31
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Kato, Toshiyuki

Abstract

A current limiting circuit includes: a gain calculation circuit which calculates a screen power value based on pixel values and calculates a gain based on the screen power value; and a gain multiplication circuit which multiplies the pixel values by the gain, and when a maximum value of the pixel values exceeds a first threshold value, the gain calculation circuit calculates the screen power value by use of a common pixel value greater than or equal to the maximum value instead of the pixel values, and when the screen power value exceeds a control target power value, the gain calculation circuit sets the gain to a ratio of the control target power value with respect to the screen power value, and when the screen power value is less than or equal to the control target power value, the gain calculation circuit sets the gain to 1.

IPC Classes  ?

  • G09G 3/3233 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element

69.

Display panel and display panel manufacturing method

      
Application Number 17001026
Grant Number 11515504
Status In Force
Filing Date 2020-08-24
First Publication Date 2021-03-04
Grant Date 2022-11-29
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor
  • Kato, Hiroki
  • Noda, Makoto

Abstract

A display panel including a metal film, an adhesive layer disposed on the metal film, a first resin substrate disposed on the adhesive layer, light-emitting elements disposed above the first resin substrate, and a second resin substrate disposed above the light-emitting elements. The adhesive layer includes contact portions in contact with the metal film and gaps are present between the contact portions where the adhesive layer is not in contact with the metal film.

IPC Classes  ?

  • H01L 51/52 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED) - Details of devices
  • H01L 51/56 - Processes or apparatus specially adapted for the manufacture or treatment of such devices or of parts thereof
  • H01L 51/00 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof

70.

Display device including transparent partition wall and method of manufacturing same

      
Application Number 17003991
Grant Number 11502278
Status In Force
Filing Date 2020-08-27
First Publication Date 2021-03-04
Grant Date 2022-11-15
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Matsuoka, Kenichi

Abstract

Disclosed herein is a display device including a plurality of light emitting portions arranged in a form of a matrix, a sealing layer disposed on the plurality of light emitting portions, a light shielding layer disposed in a gap between the light emitting portions adjacent to each other in a row direction on the sealing layer and extending in a column direction, a transparent partition wall layer disposed on the light shielding layer and extending in the column direction, and a color filter disposed in a gap in the light shielding layer and the transparent partition wall layer on the sealing layer.

IPC Classes  ?

  • H01L 51/52 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED) - Details of devices
  • H01L 51/56 - Processes or apparatus specially adapted for the manufacture or treatment of such devices or of parts thereof
  • H01L 27/32 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes

71.

Display apparatus and electronic apparatus

      
Application Number 17002710
Grant Number 11239436
Status In Force
Filing Date 2020-08-25
First Publication Date 2020-12-17
Grant Date 2022-02-01
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor
  • Minami, Tetsuo
  • Uchino, Katsuhide

Abstract

Disclosed herein is a display apparatus, including: a foldable substrate; a pixel array section including a plurality of pixels disposed on the substrate and each including an electro-optical device; the foldable substrate being folded at a substrate end portion at least on one side thereof around the pixel array section; a peripheral circuit section disposed on the substrate end portion and adapted to drive the pixels of the pixel array section; and a pad section provided on the substrate end portion on which the peripheral circuit section is provided and adapted to electrically connect the peripheral circuit section to the outside of the substrate.

IPC Classes  ?

  • G09G 3/325 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element the current through the light-emitting element being set using a data current provided by the data driver, e.g. by using a two-transistor current mirror the data current flowing through the driving transistor during a setting phase, e.g. by using a switch for connecting the driving transistor to the data driver
  • H01L 51/00 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
  • H01L 27/32 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes
  • G09G 3/3266 - Details of drivers for scan electrodes
  • G09G 3/3283 - Details of drivers for data electrodes in which the data driver supplies a variable data current for setting the current through, or the voltage across, the light-emitting elements
  • H01L 51/52 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED) - Details of devices
  • G02F 1/1333 - Constructional arrangements
  • G09G 3/3225 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix

72.

Display device and method of manufacturing display device

      
Application Number 16890330
Grant Number 11217759
Status In Force
Filing Date 2020-06-02
First Publication Date 2020-12-10
Grant Date 2022-01-04
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Hasegawa, Eiji

Abstract

A display device includes a flexible substrate, a self-luminescent element, and a support member. The flexible substrate has a first face and a second face opposed to the first face. The self-luminescent element is provided on the first face of the flexible substrate. The support member includes a magnetic material and is provided on the second face of the flexible substrate.

IPC Classes  ?

  • H01L 51/00 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
  • H01L 51/56 - Processes or apparatus specially adapted for the manufacture or treatment of such devices or of parts thereof

73.

Semiconductor device and display unit

      
Application Number 16736814
Grant Number 11081591
Status In Force
Filing Date 2020-01-08
First Publication Date 2020-10-22
Grant Date 2021-08-03
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Terai, Yasuhiro

Abstract

A semiconductor device includes a substrate, a first semiconductor auxiliary film, a semiconductor film, a gate insulating film, and a gate electrode. The first semiconductor auxiliary film is provided in a selective region on the substrate. The semiconductor film includes an oxide semiconductor material, and has a low-resistive region in contact with the first semiconductor auxiliary film and a channel region provided in a portion different from the low-resistive region. The gate insulating film covers the semiconductor film from the channel region to at least part of the low-resistive region. The gate electrode is opposed to the channel region of the semiconductor film via the gate insulating film.

IPC Classes  ?

  • H01L 29/786 - Thin-film transistors
  • H01L 27/12 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body
  • H01L 21/02 - Manufacture or treatment of semiconductor devices or of parts thereof
  • G02F 1/1362 - Active matrix addressed cells
  • H01L 29/12 - Semiconductor bodies characterised by the materials of which they are formed

74.

Semiconductor device and display apparatus

      
Application Number 16736813
Grant Number 11189735
Status In Force
Filing Date 2020-01-08
First Publication Date 2020-10-08
Grant Date 2021-11-30
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor
  • Hayashi, Hiroshi
  • Asano, Naoki
  • Koshiishi, Ryo

Abstract

A semiconductor device includes a gate electrode, a semiconductor film, and a conductive film. The semiconductor film includes an oxide semiconductor material. The semiconductor film includes a channel region, a low-resistance region, and an intermediate region. The channel region is opposed to the gate electrode. The low-resistance region has a lower electric resistance than the channel region. The intermediate region is provided between the low-resistance region and the channel region. The conductive film is provided selectively in contact with the low-resistance region of the semiconductor film.

IPC Classes  ?

  • H01L 21/00 - Processes or apparatus specially adapted for the manufacture or treatment of semiconductor or solid-state devices, or of parts thereof
  • H01L 27/00 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
  • H01L 29/00 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details of semiconductor bodies or of electrodes thereof
  • H01L 29/786 - Thin-film transistors
  • H01L 27/12 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body
  • H01L 21/02 - Manufacture or treatment of semiconductor devices or of parts thereof
  • H01L 29/12 - Semiconductor bodies characterised by the materials of which they are formed

75.

Self light-emitting element and manufacturing process of self light-emitting element, self light-emitting display device, and electronic equipment

      
Application Number 16817614
Grant Number 11245085
Status In Force
Filing Date 2020-03-13
First Publication Date 2020-09-17
Grant Date 2022-02-08
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor
  • Tsujimura, Hiroki
  • Yokota, Kazuhiro
  • Shirahase, Hideyuki
  • Yoneda, Kazuhiro

Abstract

Disclosed is a self light-emitting element including a first electrode, a light-emitting layer disposed above the first electrode, a function layer disposed above the light-emitting layer, and doped with a metal, and a second electrode disposed above the function layer, in which the function layer has a multilayer structure of at least three layers including an uppermost layer, a lowermost layer, and an intermediate layer between the uppermost layer and the lowermost layer, and the intermediate layer is doped with the metal at a lower concentration than the uppermost layer and the lowermost layer.

IPC Classes  ?

  • H01L 51/50 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED)
  • H01L 51/56 - Processes or apparatus specially adapted for the manufacture or treatment of such devices or of parts thereof

76.

Processing circuit, display device, and processing method for reducing current during luminance change

      
Application Number 16774743
Grant Number 11100859
Status In Force
Filing Date 2020-01-28
First Publication Date 2020-09-03
Grant Date 2021-08-24
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Kato, Toshiyuki

Abstract

A processing circuit processes video signals for a display device which includes a display panel including pixels each having a self light emitting element and a current limiting circuit limiting a current to the pixels. The processing circuit includes: a frame memory storing video signals of a previous frame; and a signal processer which: compares a luminance represented by a video signal of the current frame corresponding to a pixel and a luminance represented by a video signal of the previous frame corresponding to the pixel; outputs the video signal of the current frame in a case where the luminance represented by the video signal of the current frame is equal to or smaller than the luminance represented by the video signal of the previous frame or equal to or smaller than a predetermined threshold value; and outputs a weighted average of the video signal of the current frame and the video signal of the previous frame in any other case.

IPC Classes  ?

  • G09G 3/3233 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
  • G09G 3/3291 - Details of drivers for data electrodes in which the data driver supplies a variable data voltage for setting the current through, or the voltage across, the light-emitting elements
  • H04N 5/369 - SSIS architecture; Circuitry associated therewith

77.

Organic EL display panel and manufacturing method of organic el display panel

      
Application Number 16802579
Grant Number 11469281
Status In Force
Filing Date 2020-02-27
First Publication Date 2020-09-03
Grant Date 2022-10-11
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor
  • Nendai, Kenichi
  • Yamada, Jiro

Abstract

Disclosed is an organic EL display panel including: a substrate; a planarization layer being disposed on an upper surface of the substrate and containing a resin material; plural pixel electrodes being disposed in a matrix manner on the planarization layer; a light emitting layer being disposed on the pixel electrodes and containing an organic luminescent material; and a common electrode covering at least an upper side of the light emitting layer and being disposed continuously in a plane direction. A recessed part is opened to extend in a column direction in at least one gap between the pixel electrodes adjacent to each other in a row direction on the planarization layer, the common electrode is disposed continuously in the recessed part, and a power feed auxiliary interconnect extending in the column direction and formed of an applied film is disposed on an upper surface of the common electrode.

IPC Classes  ?

  • H01L 27/32 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes
  • H01L 51/52 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED) - Details of devices
  • H01L 51/56 - Processes or apparatus specially adapted for the manufacture or treatment of such devices or of parts thereof

78.

Display device and method for driving display device

      
Application Number 16877040
Grant Number 11004392
Status In Force
Filing Date 2020-05-18
First Publication Date 2020-09-03
Grant Date 2021-05-11
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor
  • Hayashi, Hiroshi
  • Ono, Shinya

Abstract

A method for driving a display device includes stopping a display operation of a display based on a presence or absence of a signal indicating an off operation of a main power switch of the display. The method further includes applying a recovery voltage across a gate and source of a driving transistor in the display based on a threshold voltage shift of the driving transistor. The threshold voltage shift is determined during a stopped state of the display operation of the display. The stopped state of the display operation of the display occurs prior to starting the display operation of the display.

IPC Classes  ?

  • G09G 3/3233 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element

79.

Semiconductor device and display including wiring line having protective metal film

      
Application Number 16518386
Grant Number 11127762
Status In Force
Filing Date 2019-07-22
First Publication Date 2020-08-20
Grant Date 2021-09-21
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor
  • Matsuo, Eri
  • Terai, Yasuhiro

Abstract

A semiconductor device includes a semiconductor film, a semiconductor auxiliary film, a wiring line, a first metal film, and an interlayer insulating film. The semiconductor film includes a channel region and a low-resistance region. The semiconductor film includes indium and oxygen. The semiconductor auxiliary film is in contact with the low-resistance region of the semiconductor film and reduces the electric resistance of the semiconductor film. The wiring line is electrically coupled to the low-resistance region of the semiconductor film. The first metal film covers the wiring line and has a higher standard electrode potential than the indium. The interlayer insulating film covers the semiconductor film with the first metal film interposed therebetween. The interlayer insulating film has a first hole and a second hole. The first hole is provided at a position opposed to the low-resistance region of the semiconductor film. The second hole reaches the first metal film.

IPC Classes  ?

  • H01L 27/12 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body
  • H01L 29/786 - Thin-film transistors
  • H01L 29/66 - Types of semiconductor device

80.

Thin-film transistor including source-drain electrodes connected to a semiconducting film and extending through a semiconductor auxiliary film

      
Application Number 16518437
Grant Number 11239371
Status In Force
Filing Date 2019-07-22
First Publication Date 2020-08-20
Grant Date 2022-02-01
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor
  • Terai, Yasuhiro
  • Asano, Naoki
  • Maruyama, Takashi

Abstract

A semiconductor device includes a semiconductor film, an interlayer insulating film, a source-drain electrode, and a semiconductor auxiliary film. The semiconductor film includes an oxide semiconductor material and has a channel region and a low-resistance region. The low-resistance region has an electric resistance lower than an electric resistance of the channel region. The interlayer insulating film covers the semiconductor film and has a through-hole opposed to the low-resistance region. The source-drain electrode includes a source electrode and a drain electrode and is electrically coupled to the semiconductor film through the through-hole. The semiconductor auxiliary film is in contact with the low-resistance region of the semiconductor film, reduces an electric resistance of the semiconductor film, and has a first opening at least on a part of a portion opposed to the through-hole.

IPC Classes  ?

  • H01L 29/786 - Thin-film transistors
  • H01L 29/417 - Electrodes characterised by their shape, relative sizes or dispositions carrying the current to be rectified, amplified or switched
  • H01L 29/66 - Types of semiconductor device
  • H01L 21/02 - Manufacture or treatment of semiconductor devices or of parts thereof
  • H01L 29/45 - Ohmic electrodes
  • H01L 21/027 - Making masks on semiconductor bodies for further photolithographic processing, not provided for in group or
  • H01L 21/465 - Chemical or electrical treatment, e.g. electrolytic etching

81.

Pixel circuit and display device

      
Application Number 16751809
Grant Number 11309377
Status In Force
Filing Date 2020-01-24
First Publication Date 2020-08-06
Grant Date 2022-04-19
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Ohara, Masanori

Abstract

A pixel circuit disposed in a pixel region including three subpixel regions includes: three light-emitting elements that are disposed in the subpixel regions and have mutually different luminescent colors; one drive circuit that is disposed in a subpixel region serving as a first subpixel region, and supplies drive current to the three light-emitting elements in time division; and a positive power supply line serving as a first power supply line that is disposed in a subpixel region serving as a second subpixel region, and supplies power supply voltage to the drive circuit.

IPC Classes  ?

  • H01L 27/32 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes
  • G09G 3/3208 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
  • H01L 27/118 - Masterslice integrated circuits
  • H01L 27/12 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body

82.

Pixel circuit, method for driving, and display device

      
Application Number 16717277
Grant Number 10997915
Status In Force
Filing Date 2019-12-17
First Publication Date 2020-07-23
Grant Date 2021-05-04
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Ohara, Masanori

Abstract

A pixel circuit includes: one data signal line; one holding capacitor which holds a data signal transmitted through the one data signal line; one drive transistor which outputs a current in accordance with the data signal held at the one holding capacitor; three color selection lines; three color selection transistors having control terminals respectively connected to the three color selection lines that are mutually different; and three light emitting elements being connected to an output end of the current of the one drive transistor via the three color selection transistors, respectively, that are mutually different, and emitting luminescent colors that are mutually different.

IPC Classes  ?

  • G09G 3/3233 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
  • G09G 3/3283 - Details of drivers for data electrodes in which the data driver supplies a variable data current for setting the current through, or the voltage across, the light-emitting elements
  • G09G 3/20 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix

83.

Display panel and electronic apparatus

      
Application Number 16734425
Grant Number 10854688
Status In Force
Filing Date 2020-01-06
First Publication Date 2020-07-23
Grant Date 2020-12-01
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Hasegawa, Eiji

Abstract

A display panel includes a planarization layer, self-luminous elements, a first wiring line, a second wiring line, and a sensing wiring line. The first wiring line is coupled to the first electrode layer through a first opening of the planarization layer. The second wiring line is coupled to the second electrode layer through a second opening of the planarization layer. The sensing wiring line is provided in a region and is electrically separated from the first electrode layer, the second electrode layer, the first wiring line, and the second wiring line. The region is positioned in the same layer as the first electrode layer, in the same layer as the second wiring line, or in a layer disposed between the first electrode layer and the second wiring line, and is positioned between the first electrode layer and the second opening.

IPC Classes  ?

  • H01L 27/32 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes

84.

Display unit

      
Application Number 16830289
Grant Number 11063109
Status In Force
Filing Date 2020-03-26
First Publication Date 2020-07-16
Grant Date 2021-07-13
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor
  • Murai, Atsuhito
  • Terai, Yasuhiro
  • Maruyama, Takashi
  • Oshima, Yoshihiro
  • Toyota, Motohiro
  • Ebihara, Ryosuke
  • Hiromasu, Yasunobu

Abstract

A display unit includes a first substrate, a transistor, first and second wiring layers, and an insulating film. The first substrate is provided with a display region and a peripheral region. The transistor is provided in the display region, and includes a semiconductor layer, a gate electrode facing the semiconductor layer, a gate insulating film between the gate electrode and the semiconductor layer, and a source-drain electrode electrically coupled to the semiconductor layer. The first wiring layer is provided in the peripheral region, electrically coupled to the transistor, and disposed closer to the first substrate than the same layer as the gate electrode and the source-drain electrode. The second wiring layer is provided on the first substrate and has an electric potential different from the first wiring layer. The insulating film is provided between the second wiring layer and the first wiring layer.

IPC Classes  ?

  • H01L 27/32 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes
  • H01L 51/52 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED) - Details of devices
  • H01L 29/417 - Electrodes characterised by their shape, relative sizes or dispositions carrying the current to be rectified, amplified or switched
  • H01L 29/423 - Electrodes characterised by their shape, relative sizes or dispositions not carrying the current to be rectified, amplified or switched
  • H01L 29/786 - Thin-film transistors
  • H01L 27/12 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body

85.

Organic el display panel having dummy light emitting layers and method for manufacturing organic el display panel having dummy light emitting layers

      
Application Number 16726930
Grant Number 11228005
Status In Force
Filing Date 2019-12-26
First Publication Date 2020-07-16
Grant Date 2022-01-18
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Nishikiori, Toshiki

Abstract

A light-transmissive organic EL display panel including: a light transmissive substrate; organic EL elements on the substrate, where pixels each including a plurality of organic EL elements arranged along a row direction are arranged in pixel columns arranged in parallel along the row direction, and intervals between the pixel columns are each greater than a width in the row direction of any of the pixel columns; and dummy light emitting layers, wherein each of the organic EL elements included in one of the pixels includes any one of a plurality of organic light emitting materials that emit different colors of light, and the dummy light emitting layers include any one of the plurality of organic light emitting materials and are present above portions of non-pixel regions adjacent to the pixel columns in the row direction.

IPC Classes  ?

  • H01L 51/00 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
  • H01L 27/32 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes
  • H01L 51/56 - Processes or apparatus specially adapted for the manufacture or treatment of such devices or of parts thereof
  • H01L 51/50 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED)

86.

Luminescent panel, luminescent device, and electronic apparatus

      
Application Number 16734787
Grant Number 10910599
Status In Force
Filing Date 2020-01-06
First Publication Date 2020-07-16
Grant Date 2021-02-02
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Sasaki, Atsushi

Abstract

A luminescent panel includes an upper sealing layer, a lower sealing layer, and an organic electroluminescent layer. The organic electroluminescent layer is provided between the upper sealing layer and the lower sealing layer and includes one or a plurality of organic electroluminescent elements. At least one of the upper sealing layer or the lower sealing layer includes one or a plurality of inorganic sealing films each provided with a plurality of fracture control parts. The fracture control parts each include an inorganic material having relatively lower mechanical strength than parts of the one or plurality of inorganic sealing films other than the fracture control parts.

IPC Classes  ?

  • H01L 51/52 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED) - Details of devices
  • H01L 51/50 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED)
  • H01L 51/00 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof

87.

Active-matrix display device

      
Application Number 16811994
Grant Number 10984716
Status In Force
Filing Date 2020-03-06
First Publication Date 2020-07-02
Grant Date 2021-04-20
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Homura, Shigeo

Abstract

An active-matrix display device includes a pixel matrix having a plurality of pixel cells arranged in rows and columns, and a data line disposed for each of the columns in the pixel matrix and connected to each pixel cell in a column. Each pixel cell includes a holding capacitor, including a first electrode connected to a gate of the drive transistor, a lower electrode connected to a source of the drive transistor, and an upper electrode connected to the source of the drive transistor. At least one of the lower electrode and the upper electrode protrudes toward the data line from a facing region in a plan view of the pixel matrix, such that a protruded amount, which is an amount of protrusion toward the data line, is greater than or equal to 15% of a distance between the data line and the first electrode in the facing region.

IPC Classes  ?

  • G09G 3/32 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
  • H01L 27/12 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body
  • G09G 3/3233 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
  • G09G 3/3283 - Details of drivers for data electrodes in which the data driver supplies a variable data current for setting the current through, or the voltage across, the light-emitting elements
  • H01L 51/52 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED) - Details of devices
  • H01L 27/32 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes

88.

Organic EL display panel manufacturing method and functional layer forming device

      
Application Number 16679288
Grant Number 11108029
Status In Force
Filing Date 2019-11-11
First Publication Date 2020-05-21
Grant Date 2021-08-31
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor
  • Kondo, Yoshiaki
  • Nishikiori, Toshiki

Abstract

A method of manufacturing an organic electroluminescence display panel including: preparing a substrate; forming pixel electrodes arranged in a matrix above the substrate; forming parallel column banks above the substrate in spaces between the pixel electrodes in a row direction; forming functional layers including organic light emitting layers in gaps between the column banks, including causing relative motion in the row direction between the substrate and a head provided with nozzles arranged along a column direction while ejecting ink from selected nozzles among the nozzles to supply a set of the gaps with an ink including an organic material; and forming a counter electrode above the functional layers. Among the set of the gaps, nozzle patterns of the selected nozzles for a gap differ between a first gap and a second gap in a sequence in the row direction of the set.

IPC Classes  ?

  • H01L 51/56 - Processes or apparatus specially adapted for the manufacture or treatment of such devices or of parts thereof
  • H01L 51/50 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED)
  • H01L 51/00 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
  • H01L 27/32 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes

89.

Display unit and electronic apparatus

      
Application Number 16303128
Grant Number 11404501
Status In Force
Filing Date 2017-04-20
First Publication Date 2020-05-21
Grant Date 2022-08-02
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor
  • Teramoto, Kazuma
  • Yamada, Jiro
  • Nendai, Kenichi
  • Abe, Kaoru
  • Kobayashi, Hideki

Abstract

A display unit is provided with a plurality of pixels that are two-dimensionally arranged and each include an organic electroluminescence element emitting light of one of a plurality of colors. The pixels are arranged along one direction for each of light emission colors. The pixels each include a first insulating film, a second insulating film, and an organic layer. The first insulating film has openings for the respective pixels. The second insulating film extends along the arrangement direction for each of the light emission colors, in a region between pixels of different light emission colors, out of the plurality of pixels, on the first insulating film. The organic layer is formed in each of the openings, and includes a light-emitting layer. The first insulating film includes a recess that connects together the openings of pixels of the same light emission color, out of the plurality of pixels.

IPC Classes  ?

  • H01L 27/32 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes
  • H01L 51/52 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED) - Details of devices
  • G09G 3/3233 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
  • G09G 3/3266 - Details of drivers for scan electrodes

90.

Display panel control device, display device, and method for driving display panel

      
Application Number 16748360
Grant Number 11405595
Status In Force
Filing Date 2020-01-21
First Publication Date 2020-05-21
Grant Date 2022-08-02
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Ishii, Hiroaki

Abstract

A method for driving a display panel displays a video image signal that includes a plurality of images having different frame periods. The method includes setting a frame period including one or more light emission periods, and one or more light extinction periods. The method also includes dividing at least one frame period into a plurality of light emission periods and a plurality of light extinction periods, and adjusting lengths of the plurality of light emission periods and lengths of the plurality of light extinction periods based on a ratio between a maximum frequency of the frame period and a currently set frequency of the frame period. The method further includes displaying the video image signal by causing light emitting elements of the display panel to emit light during the adjusted light emission periods, and to extinguish light during the adjusted light extinction periods.

IPC Classes  ?

  • H04N 7/56 - Synchronising systems therefor
  • H04N 5/04 - Synchronising
  • H01L 27/32 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes
  • G09G 3/3258 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the voltage across the light-emitting element
  • G09G 3/3233 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element

91.

Organic EL display panel and method of manufacturing organic EL display panel

      
Application Number 16726208
Grant Number 10937988
Status In Force
Filing Date 2019-12-23
First Publication Date 2020-05-07
Grant Date 2021-03-02
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor
  • Nishimura, Masaki
  • Ajiki, Hiroyuki
  • Yada, Shuhei
  • Shinokawa, Yasuharu

Abstract

An organic EL display panel includes a substrate, a plurality of pixel electrodes disposed in a matrix pattern over the substrate, a first current feeding auxiliary electrode layer disposed to extend in a column or row direction in at least one of gaps between adjacent ones of the pixel electrodes over the substrate, a second current feeding auxiliary electrode layer that contains aluminum as a main constituent and is disposed to be superposed on the first current feeding auxiliary electrode layer, a plurality of light emitting layers disposed on the plurality of pixel electrodes, and a common electrode layer disposed continuously to cover the first current feeding auxiliary electrode layer and the second current feeding auxiliary electrode layer as well as an upper side of the plurality of light emitting layers.

IPC Classes  ?

  • H01L 51/52 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED) - Details of devices
  • H01L 51/50 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED)
  • H01L 27/32 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes

92.

Organic EL element, method of manufacturing organic EL element, organic EL panel, organic EL display device and electronic apparatus

      
Application Number 16663389
Grant Number 11031570
Status In Force
Filing Date 2019-10-25
First Publication Date 2020-04-30
Grant Date 2021-06-08
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Mishima, Kosuke

Abstract

An organic electroluminescence element includes an anode, an organic light emitting layer disposed on an upper side of the anode, a functional layer which is disposed over the organic light emitting layer, in which a rare earth metal and other material are present mixedly, and in which part of the rare earth metal is oxidized, and a cathode disposed on an upper side of the functional layer. A method of manufacturing an organic electroluminescence element includes forming an anode, forming an organic light emitting layer on an upper side of the anode, forming over the organic light emitting layer a functional layer in which a rare earth metal and other material are present mixedly and part of the rare earth metal is oxidized, and forming a cathode on an upper side of the functional layer.

IPC Classes  ?

  • H01L 51/00 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
  • H01L 51/50 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED)
  • H01L 27/32 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes
  • H01L 51/52 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED) - Details of devices
  • H01L 51/56 - Processes or apparatus specially adapted for the manufacture or treatment of such devices or of parts thereof

93.

Display apparatus and electronic apparatus

      
Application Number 16686988
Grant Number 10784453
Status In Force
Filing Date 2019-11-18
First Publication Date 2020-03-19
Grant Date 2020-09-22
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor
  • Minami, Tetsuo
  • Uchino, Katsuhide

Abstract

Disclosed herein is a display apparatus, including: a foldable substrate; a pixel array section including a plurality of pixels disposed on the substrate and each including an electro-optical device; the foldable substrate being folded at a substrate end portion at least on one side thereof around the pixel array section; a peripheral circuit section disposed on the substrate end portion and adapted to drive the pixels of the pixel array section; and a pad section provided on the substrate end portion on which the peripheral circuit section is provided and adapted to electrically connect the peripheral circuit section to the outside of the substrate.

IPC Classes  ?

  • G09G 1/00 - Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators
  • H01L 51/00 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
  • H01L 27/32 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes
  • G09G 3/325 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element the current through the light-emitting element being set using a data current provided by the data driver, e.g. by using a two-transistor current mirror the data current flowing through the driving transistor during a setting phase, e.g. by using a switch for connecting the driving transistor to the data driver
  • G09G 3/3266 - Details of drivers for scan electrodes
  • G09G 3/3283 - Details of drivers for data electrodes in which the data driver supplies a variable data current for setting the current through, or the voltage across, the light-emitting elements
  • H01L 51/52 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED) - Details of devices
  • G02F 1/1333 - Constructional arrangements
  • G09G 3/3225 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix

94.

Display apparatus, manufacturing method of display apparatus, and electronic device

      
Application Number 16692850
Grant Number 10872946
Status In Force
Filing Date 2019-11-22
First Publication Date 2020-03-19
Grant Date 2020-12-22
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor
  • Tamonoki, Shinya
  • Sagawa, Hiroshi

Abstract

A display apparatus including: a display region provided with a plurality of pixel portions; wires installed to the respective pixel portions within the display region from an outside of the display region for transmitting a signal to drive the respective pixel portions; connection pads provided on the outside of the display region and serving as input portions to provide the wires with a signal while electrically conducting with the wires; switch elements provided on the outside of the display region in a middle of the wires; and a light shielding covering portion shielding the switch elements from light and formed to cover the connection pads while electrically conducting with the connection pads.

IPC Classes  ?

  • H01L 27/32 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes
  • H01L 33/08 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a plurality of light emitting regions, e.g. laterally discontinuous light emitting layer or photoluminescent region integrated within the semiconductor body
  • H01L 51/00 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
  • H01L 51/56 - Processes or apparatus specially adapted for the manufacture or treatment of such devices or of parts thereof
  • H01L 51/52 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED) - Details of devices
  • H01L 27/12 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body

95.

Light-emitting panel, electronic apparatus, and method of manufacturing light-emitting panel

      
Application Number 16532496
Grant Number 11222935
Status In Force
Filing Date 2019-08-06
First Publication Date 2020-02-13
Grant Date 2022-01-11
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Nishimura, Masaki

Abstract

A light-emitting panel includes a plurality of pixels, a plurality of first regulators, and a plurality of second regulators. The plurality of first regulators extends in a first direction and defines each two of the pixels that are adjacent to each other in a second direction orthogonal to the first direction. The plurality of second regulators extends in the second direction and defines each two of the pixels that are adjacent to each other in the first direction. The plurality of pixels at least includes a first pixel and a second pixel that have different lengths in the first direction from each other and share a light-emitting layer. The first pixel and the second pixel are at least adjacent to each other in the first direction with the second regulator being interposed between the first pixel and the second pixel.

IPC Classes  ?

  • H01L 27/32 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes
  • H01L 51/00 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
  • H01L 51/50 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED)

96.

Circuit board and display device

      
Application Number 16456399
Grant Number 11158252
Status In Force
Filing Date 2019-06-28
First Publication Date 2020-02-13
Grant Date 2021-10-26
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Nakano, Yutaka

Abstract

A circuit board includes: a power supply wiring board that includes a power supply circuit that outputs the power supply voltage, and a first power supply line and a second power supply line which are connected with the power supply circuit; a first wiring board that includes a first line; a second wiring board that includes a second line; a first cable that includes a first conductor that connects the first power supply line and the first line; a second cable that includes a second conductor that connects the second power supply line and the second line; and a short-circuit conductor that short-circuits the first line and the second line. An electrical length of a route from the power supply circuit to the first wiring board is shorter than an electrical length of a route from the power supply circuit to the second wiring board.

IPC Classes  ?

  • G06F 3/038 - Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
  • G09G 5/00 - Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
  • G09G 3/3233 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
  • G09G 3/3275 - Details of drivers for data electrodes
  • G09G 3/3266 - Details of drivers for scan electrodes

97.

Flexible wiring board and display device

      
Application Number 16456431
Grant Number 10932365
Status In Force
Filing Date 2019-06-28
First Publication Date 2020-02-13
Grant Date 2021-02-23
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Nakano, Yutaka

Abstract

A flexible wiring board (a first wiring board) includes: an insulating substrate which is flexible; a first terminal which is conductive and is disposed on the insulating substrate; a second terminal which is conductive and is disposed on the insulating substrate; and a no-connection (NC) terminal which is conductive and is disposed on the insulating substrate between the first terminal and the second terminal. The first terminal, the NC terminal, and the second terminal are arranged at a uniform pitch in an arranging direction that is predetermined, and a width of the NC terminal in the arranging direction is smaller than a width of the first terminal in the arranging direction and a width of the second terminal in the arranging direction.

IPC Classes  ?

  • H05K 1/00 - Printed circuits
  • H05K 1/11 - Printed elements for providing electric connections to or between printed circuits
  • H05K 1/18 - Printed circuits structurally associated with non-printed electric components

98.

Display device and method for checking display device

      
Application Number 16456515
Grant Number 11069267
Status In Force
Filing Date 2019-06-28
First Publication Date 2020-02-13
Grant Date 2021-07-20
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Nakano, Yutaka

Abstract

A display device includes: a display panel; a main wiring board; a first wiring board that includes a first feedback line; and a first cable that is removably coupled to the main wiring board and the first wiring board. The main wiring board includes: a first output line; a first input line; a first circuit (a power supply circuit) that outputs a first voltage to the first output line; and a control circuit that is connected with the first input line. The first cable includes: a first forward conductor that directly or indirectly connects the first output line and the first feedback line; and a first return conductor that directly or indirectly connects the first input line and the first feedback line. The control circuit determines whether the first voltage is input, and when an input of the first voltage is determined, starts a display on the display panel.

IPC Classes  ?

  • G09G 3/00 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
  • H05K 1/02 - Printed circuits Details
  • G09G 3/32 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
  • H01R 12/79 - Coupling devices for flexible printed circuits, flat or ribbon cables or like structures connecting to rigid printed circuits or like structures

99.

Power off method of display device, and display device

      
Application Number 16600149
Grant Number 11164520
Status In Force
Filing Date 2019-10-11
First Publication Date 2020-02-06
Grant Date 2021-11-02
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor Tsuge, Hitoshi

Abstract

A light emitting display panel includes a plurality of pixel circuits arranged in a matrix. Each of the plurality of pixel circuits includes a light emitting element, a capacitor that is connected to a gate of a drive transistor and the light emitting element, a first switch transistor that is connected to a first electrode of the capacitor, a first wire that is connected to the first electrode of the capacitor via the first switch transistor, a second switch transistor that is connected to a second electrode of the capacitor and the light emitting element, and a second wire that is connected to the second electrode of the capacitor via the second switch transistor. A voltage of the first wire and a voltage of the second wire are the same during a power off operation or during a non-light emission period.

IPC Classes  ?

  • G09G 3/3233 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
  • G09G 3/325 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element the current through the light-emitting element being set using a data current provided by the data driver, e.g. by using a two-transistor current mirror the data current flowing through the driving transistor during a setting phase, e.g. by using a switch for connecting the driving transistor to the data driver
  • G09G 3/3266 - Details of drivers for scan electrodes
  • G09G 3/3283 - Details of drivers for data electrodes in which the data driver supplies a variable data current for setting the current through, or the voltage across, the light-emitting elements

100.

Protection sheet, display, and electronic apparatus

      
Application Number 16524714
Grant Number 10964898
Status In Force
Filing Date 2019-07-29
First Publication Date 2020-02-06
Grant Date 2021-03-30
Owner JDI DESIGN AND DEVELOPMENT G.K. (Japan)
Inventor
  • Seki, Takahiro
  • Yamazaki, Katsumasa

Abstract

A display includes a display panel and a first protection sheet. The display panel has flexibility and a light output face. The first protection sheet is provided on the light output face and includes a first shock dispersion layer, a first strain relaxation layer, and a first shock absorption layer. The first shock dispersion layer includes a flexible reinforced-glass member, a flexible hard-coat film, or a flexible double-sided hard-coat film. The first strain relaxation layer includes a wet-laminated layer or a dry-laminated layer that is in close contact with a surface of the first shock dispersion layer adjacent to the display panel. The first shock absorption layer includes a gel layer having a thickness of submillimeter order or greater. The first shock absorption layer, the first strain relaxation layer, and the first shock dispersion layer are laminated in this order from the light output face of the display panel.

IPC Classes  ?

  • H01L 29/08 - Semiconductor bodies characterised by the shapes, relative sizes, or dispositions of the semiconductor regions with semiconductor regions connected to an electrode carrying current to be rectified, amplified, or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
  • H01L 35/24 - Selection of the material for the legs of the junction using organic compositions
  • H01L 51/00 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
  • H01L 51/52 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED) - Details of devices
  • G02F 1/1333 - Constructional arrangements
  • B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
  • G09F 9/30 - Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
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