Abstract

A liquid crystal cell and a 2D/3D switchable display device. The liquid crystal cell (100) comprises a first electrode (10), a columnar lens layer (20), a liquid crystal layer (30), and a second electrode (40) in sequence. A surface of the columnar lens layer (20) is provided with an alignment structure (21), and the liquid crystal cell (100) is directly provided with the alignment structure (21) on the lens surface of the columnar lens layer (20), so that an alignment structure formed by coating alignment liquid is replaced, and a problem that the thicknesses of the alignment liquid coated at different positions of the columnar lens layer (20) are different is avoided, thereby enabling the 2D/3D switchable display device to control deflection of liquid crystals more accurately, and improving the effect of 3D display.

IPC Classes  ?

• G02B 30/28 - Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer’s left and right eyes of the autostereoscopic type involving lenticular arrays involving active lenticular arrays
• H04N 13/305 - Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using lenticular lenses, e.g. arrangements of cylindrical lenses
• G02F 1/29 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the position or the direction of light beams, i.e. deflection
• G02F 1/1337 - Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers

Abstract

The disclosure relates to a switching process for switching in an autostereoscopic display device from a first view mode to a second view mode, wherein the autostereoscopic display device comprises a display panel, a lenticular device and means for applying a voltage, the process comprising the application of a switching voltage across both switching electrodes of the lenticular device wherein a ramp voltage is applied that increases during a ramp period of at least 0.50 second from a starting voltage at which the lenticular device is in its, first view mode to a final voltage at which the lenticular device is in its second view mode, wherein during at least 0.40 second of the ramp period, the ramp voltage is at an intermediate voltage that is in the range of 5-60% of the minimal voltage; and the final voltage is equal to or higher than minimal voltage.

IPC Classes  ?

• G02F 1/1337 - Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
• G02B 30/28 - Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer’s left and right eyes of the autostereoscopic type involving lenticular arrays involving active lenticular arrays
• G02F 1/1343 - Electrodes
• H04N 13/305 - Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using lenticular lenses, e.g. arrangements of cylindrical lenses
• H04N 13/359 - Switching between monoscopic and stereoscopic modes

Abstract

Provided is a display device comprising a display panel having an array of display pixel elements for producing a display output; a viewer detecting system rendering data representing 1) the illumination intensity of a body part of the viewer and 2) another property of the body part; at least one illumination source for providing illumination of a body part of the viewer; and a processor configured to 1) process the data representing the illumination intensity of a body part of the viewer and 2) drive the at least one illumination source dependent on said illumination data to adapt the illumination intensity of a body part of the viewer.

IPC Classes  ?

• H04N 13/32 - Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using arrays of controllable light sourcesImage reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using moving apertures or moving light sources
• H04N 13/368 - Image reproducers using viewer tracking for two or more viewers
• H04N 13/383 - Image reproducers using viewer tracking for tracking with gaze detection, i.e. detecting the lines of sight of the viewer's eyes
• H04N 13/398 - Synchronisation thereofControl thereof
• G06V 40/10 - Human or animal bodies, e.g. vehicle occupants or pedestriansBody parts, e.g. hands

Abstract

A lenticular lens having an array of elongate lenticular elements extending parallel to one another, the array having a first edge and a second edge extending parallel to the elongate lenticular elements; and a central line that is centered between the first edge and the second edge; characterized in that the focal length of the lenticular elements gradually decreases from the first edge of the array towards the central line as well as from the second edge of the array towards the central line. This improves the angular performance of the lenticular lens, so that at short viewing distances the image quality near the edges of the display is not impaired.

IPC Classes  ?

• G02B 30/29 - Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer’s left and right eyes of the autostereoscopic type involving lenticular arrays characterised by the geometry of the lenticular array, e.g. slanted arrays, irregular arrays or arrays of varying shape or size
• H04N 13/305 - Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using lenticular lenses, e.g. arrangements of cylindrical lenses

Abstract

A switchable autostereoscopic display comprises: an array of pixels lined with a view altering lens stack; a switchable liquid crystal layer arranged between the array of pixels and the view altering lens stack; a main linear grid of elongate electrodes; a first sub-grid of electrodes arranged parallel to and between the array of pixels and the main linear grid of elongate electrodes, wherein the first sub-grid is spaced apart from the main linear grid; a second sub-grid of electrodes arranged parallel to and spaced apart from the first sub-grid and parallel to the main linear grid to provide a capacitive touch location sensor and wherein the elongate electrodes, each having a width g, of the main linear grid are arranged at a pitch p and wherein the ratio g/p is at least 0.75.

IPC Classes  ?

• G02B 30/27 - Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer’s left and right eyes of the autostereoscopic type involving lenticular arrays
• G02F 1/1333 - Constructional arrangements
• G02F 1/1343 - Electrodes
• G06F 3/044 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
• G09G 3/36 - 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 using liquid crystals

Abstract

The invention relates to a method for reducing moire patterns on an autostereoscopic display, which display comprises an array of pixels, each having at least one sub-pixel corresponding to a main color, lined with a view altering layer, such as a lenticular lens stack or parallax barrier, and wherein the display further comprises an eye tracking system for determining the position of the eyes of a viewer relative to the display, which method comprises the steps of: —moire pattern detection by repeating for each main color the steps of: +activating the sub-pixels of all pixels corresponding to the single main color; obtaining moire pattern data by observing the display from a plurality of viewing positions; determining from the obtained moire pattern data the frequency, phase, direction and amplitude of the moire pattern for each of the viewing positions and storing the determined values; —controlling the pixels of the autostereoscopic display to display images, wherein the controlling comprises at least the steps of: determining the viewing position of the eyes of a viewer using the eye tracking system; rendering 3D images from image data, while correcting the 3D images by superimposing a compensation pattern for each main color, which pattern is generated based on the stored values and the determined viewing position to reduce the moire pattern for said viewing position.

IPC Classes  ?

• H04N 13/305 - Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using lenticular lenses, e.g. arrangements of cylindrical lenses
• H04N 13/122 - Improving the 3D impression of stereoscopic images by modifying image signal contents, e.g. by filtering or adding monoscopic depth cues
• H04N 13/31 - Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using parallax barriers
• H04N 13/366 - Image reproducers using viewer tracking
• G02B 30/27 - Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer’s left and right eyes of the autostereoscopic type involving lenticular arrays

Abstract

The invention relates to a method for reducing crosstalk on an autostereoscopic display, wherein the display comprises an array of pixels lined with a view altering layer, such as a lenticular lens stack or parallax barrier, which display further comprises an eye tracking system for determining the position of the eyes of a viewer relative to the display, which method comprises the steps of: —defining a common nonlinear physical model for a view altering layer portion corresponding to a pixel or group of pixels, which nonlinear physical model has at least one variable for the position of the respective pixel or group of pixels relative to the display, a variable for the viewing position of the eyes of a viewer relative to the display and parameters related to the variables; —calibrating the autostereoscopic display by repeating for all pixels or group of pixels of the display, the steps of: +obtaining calibration data by observing the visibility of a pixel or group of pixels from at least two viewing positions; +fitting the calibration data on the nonlinear physical model for the respective view altering layer portion to obtain the parameters related to the variables; and +storing the parameters for the respective view altering layer portion; —controlling the pixels of the autostereoscopic display to display 3D images, wherein the controlling comprises at least the steps of: +determining the viewing position of the eyes of a viewer using the eye tracking system; +rendering 3D images from image data taking into account the position of the pixels or group of pixels relative to the viewing position, while correcting the 3D images per pixel or group of pixels using the common nonlinear physical model and the stored parameters for the view altering layer portion corresponding to the pixel of group of pixels.

IPC Classes  ?

• H04N 13/125 - Improving the 3D impression of stereoscopic images by modifying image signal contents, e.g. by filtering or adding monoscopic depth cues for crosstalk reduction
• H04N 13/305 - Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using lenticular lenses, e.g. arrangements of cylindrical lenses
• H04N 13/327 - Calibration thereof
• H04N 13/31 - Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using parallax barriers
• H04N 13/366 - Image reproducers using viewer tracking

Abstract

Lenticular lens (1) comprising an array of elongate lenticular elements (2) extending parallel to one another, the array comprising a first edge(3a) and a second edge (3b) extending parallel to the elongate lenticular elements (2); and a central line (4) that is centered between the first edge (3a) and the second edge (3b); characterized in that the focal length of the lenticular elements (2) gradually decreases from the first edge (3a) of the array towards the central line (4) as well as from the second edge (3b) of the array towards the central line (4). This improves the angular performance of the lenticular lens so that at short viewing distances the image quality near the edges of the display is not impaired.

IPC Classes  ?

• G03B 21/62 - Translucent screens
• G02B 3/00 - Simple or compound lenses

Abstract

Provided is a display device comprising a display panel having an array of display pixel elements for producing a display output; a viewer detecting system rendering data representing 1) the illumination intensity of a body part of the viewer and 2) another property of the body part; at least one illumination source for providing illumination of a body part of the viewer; and a processor configured to 1) process the data representing the illumination intensity of a body part of the viewer and 2) drive the at least one illumination source dependent on said illumination data to adapt the illumination intensity of a body part of the viewer.

IPC Classes  ?

• H04N 13/00 - Stereoscopic video systemsMulti-view video systemsDetails thereof
• G02B 27/00 - Optical systems or apparatus not provided for by any of the groups ,

Abstract

A switchable autostereoscopic display (1) comprises: an array of pixels (2) lined with a view altering lens stack (8), wherein the view altering lens stack (8) has a plurality of lens elements for directing the output from different pixels (2) to different spatial positions to enable a stereoscopic image to be viewed; a switchable liquid crystal layer (7) arranged between the array of pixels (2) and the view altering lens stack (8), which liquid crystals of the switchable liquid crystal layer (7) can be aligned between a first alignment and a second alignment by an electrical field, wherein light from the pixels (2) can pass the lens stack (8) undeflected with the liquid crystals in the first alignment for a monoscopic image, while light from the pixels (2) is deflected by the lens stack (8) with the liquid crystals in the second alignment for a stereoscopic image; a main linear grid of elongate electrodes (6) arranged parallel to and between the array of pixels (2) and the switchable liquid crystal layer (7) to provide an electrical field; a first sub-grid (4) of electrodes arranged parallel to and between the array of pixels (2) and the main linear grid of elongate electrodes (6), wherein the first sub-grid (4) is spaced apart from the main linear grid; a second sub-grid (5) of electrodes arranged parallel to and spaced apart from the first sub-grid (4) and parallel to the main linear grid to provide a capacitive touch location sensor and wherein the elongate electrodes (6), each having a width g, of the main linear grid are arranged at a pitch p and wherein the ratio g /p is at least 0.75.

IPC Classes  ?

• H04N 13/00 - Stereoscopic video systemsMulti-view video systemsDetails thereof

Abstract

EEE) is m+l/n-th of the sub-pixel pitch (Pp), wherein m = 1, 2, 3,....

IPC Classes  ?

• H04N 13/00 - Stereoscopic video systemsMulti-view video systemsDetails thereof
• G02B 27/00 - Optical systems or apparatus not provided for by any of the groups ,

Abstract

A switching process for switching in an autostereoscopic display device(1) from a first view mode to a second view mode, wherein the autostereoscopic display device(1) comprises a display panel(2), a lenticular device(4) and means(9) for applying a voltage, the process comprising the application of a switching voltage across both switching electrodes(5b,7b) of the lenticular device(4) wherein a ramp voltage is applied that increases during a ramp period of at least 0.50 second from a starting voltage at which the lenticular device(4) is in its first view mode to a final voltage at which the lenticular device(4) is in its second view mode, wherein during at least 0.40 second of the ramp period, the ramp voltage is at an intermediate voltage that is in the range of 5-60% of the minimal voltage for the second view mode; and the final voltage is equal to or higher than minimal voltage for the second view mode.

IPC Classes  ?

• G02F 1/133 - Constructional arrangementsOperation of liquid crystal cellsCircuit arrangements

Abstract

Provided is a bonding fixture, comprising: a first base (1); a second base (2); a first profile modeling body (3) arranged on the first base (1); a second profile modeling body (4) arranged on the second base (2); and a bonding platform (5) arranged between the first profile modeling body (3) and the second profile modeling body (4) and moving up and down in three-dimensional space between the first profile modeling body (3) and the second profile modeling body (4).

IPC Classes  ?

• B29C 63/02 - Lining or sheathing, i.e. applying preformed layers or sheathings of plasticsApparatus therefor using sheet or web-like material
• B29L 31/34 - Electrical apparatus, e.g. sparking plugs or parts thereof

Abstract

A display device and a driving method therefor, the display device comprising: a display panel; a light polarization direction modulator, which is located on a light emitting side of the display panel, wherein the light polarization direction modulator is configured to convert light emitted by the display panel into linearly polarized light in a preset polarization direction; and a light direction angle brightness modulator, located on a side of the light polarization direction modulator that is away from the display panel. The light direction angle brightness modulator is configured to adjust the brightness of linearly polarized light emitted by the light direction angle brightness modulator to change along with the change of a light emergence angle, and the light direction angle brightness modulator is further configured to form a slit grating during three-dimensional display, so as to enable the display device to assume different display states. The display states comprise a wide-view two-dimensional display, a narrow-view two-dimensional display and a three-dimensional display, the wide-view two-dimensional display being a two-dimensional display having a viewing angle greater than or equal to a first preset angle, and the narrow-view two-dimensional display being a two-dimensional display having a viewing angle less than a second preset angle, the first preset angle being greater than the second preset angle.

IPC Classes  ?

• G02F 1/13 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
• G02F 1/29 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the position or the direction of light beams, i.e. deflection
• G02B 27/22 - Other optical systems; Other optical apparatus for producing stereoscopic or other three-dimensional effects

Abstract

An integral imaging three-dimensional display method and apparatus, a device, and a storage medium. The method comprises: acquiring a micro image array of an input end of a target object on the basis of a first micro lens array (S110); determining a reference plane corresponding to an intelligent pseudoscopic-to-orthoscopic conversion algorithm by using depth information of the target object (S120); and converting the micro image array of the input end into a micro image array of a display end by using the reference plane and the intelligent pseudoscopic-to-orthoscopic conversion algorithm, and performing three-dimensional display on the target object by using the micro image array of the display end (S130).

IPC Classes  ?

• H04N 13/271 - Image signal generators wherein the generated image signals comprise depth maps or disparity maps

Abstract

A method and structure for implementing autostereoscopic 3D display and for switching between 2D and 3D display, the structure comprising: a first prism layer and a second prism layer provided in a stacked manner. The first prism layer comprises a first prism array (11). A first polytropic fluid can be used to fill space between multiple prisms of the first prism array (11). The second prism layer comprises a second prism array (13). A second polytropic fluid can be used to fill space between multiple prisms of the second prism array (13). The deflection direction of the first prism array (11) and the second prism array (13) differs with respect to the same incident light.

IPC Classes  ?

• G02F 1/29 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the position or the direction of light beams, i.e. deflection

Abstract

A structure and method for achieving naked-eye 3D and 2D/3D switching, wherein the structure comprises a linear polarized light module as well as a first prism layer and second prism layer that are stacked; the linear polarized light module is configured to switch between a first polarization mode that may pass a first polarized light and a second polarization mode that may pass a second polarized light; the structure is configured to guide the first polarized light toward a first direction when passing the first polarized light and guide the second polarized light toward a second direction when passing the second polarized light, the first direction being different from the second direction.

IPC Classes  ?

• G02F 1/29 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the position or the direction of light beams, i.e. deflection
• G02B 27/26 - Other optical systems; Other optical apparatus for producing stereoscopic or other three-dimensional effects involving polarising means

Abstract

An integrated imaging display system, comprising: a display unit (1) configured to display an image; and a plurality of light regulating units (2) disposed at one side of the display unit (1) and arranged in succession along a direction distant from the display unit (1). Stereoscopic images (11, 12, 13) formed by the plurality of light regulating units (2) correspond to multiple different depths, wherein the depths are distances between the stereoscopic images (11, 12, 13) and the display unit (1). The different light regulating units (2) are controlled to work at different times, so that the corresponding image information form stereoscopic images (11, 12, 13) with a certain depth range at different depth positions, and the stereoscopic images (11, 12, 13) at different positions can thus be obtained successively. Therefore, the display depth of the system is improved.

IPC Classes  ?

• G02B 27/22 - Other optical systems; Other optical apparatus for producing stereoscopic or other three-dimensional effects
• G02F 1/29 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the position or the direction of light beams, i.e. deflection
• G02F 1/133 - Constructional arrangementsOperation of liquid crystal cellsCircuit arrangements

Abstract

A process for producing a lenticular device (1) for an autostereoscopic display apparatus, wherein the lenticular device (1) comprises an array of lenticular elements (6) having a surface with liquid crystal alignment properties (5). The process comprises the use of a production mold (2) having a shaped surface which corresponds in negative relief to the desired surface profile for the array of lenticular elements (6), which shaped surface has a nanomorphology represented by grooves (6). This nanomorphology may be obtained by subjecting the surface of the production mold to abrasion, or by subjecting the surface of a pre-mold, from which the production mold is prepared by molding, to abrasion. The lenticular device obtained from such production mold comprises an alignment layer on the array of lenticular elements that is of the same material as the bulk of the lenticular device, and not of a different material.

IPC Classes  ?

• B29D 11/00 - Producing optical elements, e.g. lenses or prisms
• B29C 33/42 - Moulds or coresDetails thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves
• G02F 1/1337 - Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
• G02B 3/00 - Simple or compound lenses
• G02B 27/22 - Other optical systems; Other optical apparatus for producing stereoscopic or other three-dimensional effects

Abstract

The invention relates to a method for reducing crosstalk on an autostereoscopic display, wherein the display comprises an array of pixels lined with a view altering layer, such as a lenticular lens stack or parallax barrier, which display further comprises an eye tracking system for determining the position of the eyes of a viewer relative to the display, which method comprises the steps of: - defining a common nonlinear physical model for a view altering layer portion corresponding to a pixel or group of pixels, which nonlinear physical model has at least one variable for the position of the respective pixel or group of pixels relative to the display, a variable for the viewing position of the eyes of a viewer relative to the display and parameters related to the variables; - calibrating the autostereoscopic display by repeating for all pixels or group of pixels of the display, the steps of : + obtaining calibration data by observing the visibility of a pixel or group of pixels from at least two viewing positions; + fitting the calibration data on the nonlinear physical model for the respective view altering layer portion to obtain the parameters related to the variables; and + storing the parameters for the respective view altering layer portion; - controlling the pixels of the autostereoscopic display to display 3D images, wherein the controlling comprises at least the steps of: + determining the viewing position of the eyes of a viewer using the eye tracking system; + rendering 3D images from image data taking into account the position of the pixels or group of pixels relative to the viewing position, while correcting the 3D images per pixel or group of pixels using the common nonlinear physical model and the stored parameters for the view altering layer portion corresponding to the pixel of group of pixels.

IPC Classes  ?

• H04N 13/302 - Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
• H04N 13/366 - Image reproducers using viewer tracking
• H04N 13/327 - Calibration thereof

Abstract

The invention relates to a method for reducing moire patterns on an autostereoscopic display, which display comprises an array of pixels, each having at least one sub- pixel corresponding to a main color, lined with a view altering layer, such as a lenticular lens stack or parallax barrier, and wherein the display further comprises an eye tracking system for determining the position of the eyes of a viewer relative to the display, which method comprises the steps of: - moire pattern detection by repeating for each main color the steps of : + activating the sub-pixels of all pixels corresponding to the single main color; + obtaining moire pattern data by observing the display from a plurality of viewing positions; + determining from the obtained moire pattern data the frequency, phase, direction and amplitude of the moire pattern for each of the viewing positions and storing the determined values; - controlling the pixels of the autostereoscopic display to display 3D images, wherein the controlling comprises at least the steps of: + determining the viewing position of the eyes of a viewer using the eye tracking system; + rendering 3D images from image data, while correcting the 3D images by superimposing a compensation pattern for each main color, which pattern is generated based on the stored values and the determined viewing position to reduce the moire pattern for said viewing position.

IPC Classes  ?

• H04N 13/305 - Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using lenticular lenses, e.g. arrangements of cylindrical lenses
• H04N 13/324 - Colour aspects
• H04N 13/31 - Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using parallax barriers
• H04N 13/122 - Improving the 3D impression of stereoscopic images by modifying image signal contents, e.g. by filtering or adding monoscopic depth cues
• H04N 13/366 - Image reproducers using viewer tracking
• H04N 13/327 - Calibration thereof

Abstract

A light field display system, comprising imaging units each comprising a display means (1) and an imaging means (2), the imaging means (2) being used for converting an image displayed by the display means (1) into a reduced real image; and a microlens array (3) disposed at the light exit side of the imaging units and used for converting images output by the imaging units into stereoscopic images. Another light field display system comprises: display units each comprising a display means (1), multiple images displayed by the display units at different moments or a same moment consisting of different display pixels in a source image; and a microlens array (3) disposed at the light exit side of the display units and used for converting images displayed by the display units into stereoscopic images, during the process of forming a stereoscopic image, light regions where display pixels corresponding to multiple images displayed by the display units are projected onto the microlens array (3) partially overlapping. The resolution of the images obtained finally according to the two light field display systems above is improved.

IPC Classes  ?

• G02B 27/22 - Other optical systems; Other optical apparatus for producing stereoscopic or other three-dimensional effects

Abstract

The present application provides a 3D display module. The 3D display module comprises: a display unit including at least two pixel groups, each pixel group comprising a plurality of pixel rows, and each pixel row comprising a plurality of sub-pixels arranged sequentially at intervals; a spatial light modulation unit disposed at one side of the display unit, the spatial light modulation unit modulating light emitted by a plurality of pixel groups into different predetermined areas using a modulating module, each of the predetermined areas being located on the spatial light modulation unit on the side away from the display unit, predetermined areas corresponding to the at least two pixel groups having no superposition in a first direction, and the first direction being a direction pointing from the display unit to the spatial light modulation unit; and a view separation unit disposed on the spatial light modulation unit at the side away from the display unit, each of the predetermined areas being located between the view separation unit and the spatial light modulation unit. According to the 3D display module of the present application, viewing freedom can be improved and the depth of focus can be increased.

IPC Classes  ?

• G02B 27/22 - Other optical systems; Other optical apparatus for producing stereoscopic or other three-dimensional effects

Abstract

The present invention provides an optical film, an indium tin oxide (ITO) film, and a touch-control screen and a method for fabricating an optical film; said optical film contains a first hardened layer and a transparent substrate layer; said transparent substrate layer contains a first optical surface and a second optical surface; said first hardened layer is arranged on the first optical surface of the transparent substrate layer; the first hardened layer contains two or more refractive index materials; no apparent delamination is present in the first hardened layer; such a design effectively prevents interference fringes in the first hardened layer as a result of the stratification of different refractive indexes; in combination with the progressively decreasing distributed arrangement of refractive indexes in the technical solution, a particularly good anti-reflective effect is produced, the purpose of which is to eliminate the etch marks that appear after subsequent ITO etching.

IPC Classes  ?

• G02B 1/14 - Protective coatings, e.g. hard coatings
• G02B 1/10 - Optical coatings produced by application to, or surface treatment of, optical elements
• G02B 5/00 - Optical elements other than lenses
• H01B 5/14 - Non-insulated conductors or conductive bodies characterised by their form comprising conductive layers or films on insulating-supports
• G06F 3/041 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means

Abstract

An optical film, a polarizer, a backlight module and a display device. The optical film comprises a haze coating (10), an optical composite layer (20), a first binding layer (30), a first substrate layer (40) and a haze binding layer (50) which are sequentially laminated, the optical composite layer (20) comprising a first micro-structure layer (220) and a second micro-structure layer (250) which are sequentially laminated in a direction away from the haze coating, the first micro-structure layer (220) and the second micro-structure layer (250) being selected from either a light gathering layer or a light diffusing layer respectively, and the haze values of the haze coating (10) and the haze binding layer (50) being 1-99% respectively . The light emergence efficiency of the optical film is improved by means of the combination of the first micro-structure layer (220) and the second micro-structure layer (250); furthermore, as the haze coating (10) and the haze binding layer (50) which are respectively provided on the surfaces of two sides have haze features, not only improving the light emergence uniformity of the optical film, but also being able to provide the optical film with a shielding property, enabling same to have an additional effect of covering abnormities on the surface of the underlying optical composite layer.

IPC Classes  ?

• G02F 1/13357 - Illuminating devices
• G02B 5/02 - Diffusing elementsAfocal elements
• G02B 5/04 - Prisms

Abstract

Provided is a perspective-switchable display device. The perspective-switchable display device comprises a light alignment module and a light perspective switching module, wherein the light perspective switching module is provided in a light exit side of the light alignment module, and the light perspective switching module comprises a first conducting film, a second conducting film, a switching structure film and an electro-optic material. The first conducting film is provided at a side close to the light alignment module, the second conducting film and the first conducting film are provided oppositely, and there is a gap between the first conducting film and the second conducting film. The switching structure film is provided in the gap, and a surface of the switching structure film away from the first conducting film or away from the second conducting film is a first surface, and the first surface is a concave-convex surface. The first surface comprises a plurality of micro-structures arranged in sequence. The electro-optic material is provided in the gap and is provided on the first surface. The perspective-switchable display device has a simple optical structure, consumes less energy, and can realize privacy display without increasing the number of light sources.

IPC Classes  ?

• G02F 1/13 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
• G02B 6/00 - Light guidesStructural details of arrangements comprising light guides and other optical elements, e.g. couplings
• G02F 1/13357 - Illuminating devices

Abstract

b), and several lower alignment targets (63). The upper substrate module (171) comprises an upper ITO electrode layer (72), a plurality of shading portions (75), and several upper alignment targets (73). A plurality of liquid crystal lenticular lenses is driven by a voltage to achieve the aim of 2D and 3D switchable display.

IPC Classes  ?

• G02F 1/1335 - Structural association of cells with optical devices, e.g. polarisers or reflectors
• G02B 30/27 - Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer’s left and right eyes of the autostereoscopic type involving lenticular arrays
• G02B 3/14 - Fluid-filled or evacuated lenses of variable focal length
• G02F 1/31 - Digital deflection devices
• H04N 13/305 - Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using lenticular lenses, e.g. arrangements of cylindrical lenses
• H04N 13/302 - Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
• H04N 13/359 - Switching between monoscopic and stereoscopic modes
• H04N 13/356 - Image reproducers having separate monoscopic and stereoscopic modes

Abstract

A display device, comprising a touch display structure (01) and a switchable lens structure (02) disposed at a light emitting direction side of the touch display structure (01). The touch display structure (01) outputs image light. The switchable lens structure (02) comprises a plano-concave lens layer (7), an electro-optical material layer, and at least two electrodes (21, 31). The plano-concave lens layer (7) comprises multiple cylindrical concave lenses (71) sequentially arranged. The electro-optical material layer is a plano-convex lens layer having a complimentary shape with respect to the plano-concave lens layer (7). The electrodes (21, 31) are disposed on a side of the electro-optical material layer away from the plano-concave lens layer. The electrodes (21, 31) are spaced apart, and projections thereof on the plano-concave lens layer (7) are at different peripheries of one of the cylindrical lenses (71). By regulating a voltage between two adjacent electrodes (21, 31) to control a change of the refractive index of the electro-optical material layer, the present invention enables a switch of the switchable lens structure (02) between a 2D display state and a 3D display state, and a space between the two adjacent electrodes (21, 31) enables coupling of capacitive sensing of the touch display structure (01).

IPC Classes  ?

• G02F 1/1343 - Electrodes
• G02B 27/22 - Other optical systems; Other optical apparatus for producing stereoscopic or other three-dimensional effects

Abstract

An automatic die cutting detection system, comprising: a supply device, configured to supply a base film (8); a discharging device, comprising a conveying unit (16), a storage unit (10) and a transfer unit (9), wherein the base film from the supply device is supplied to the conveying unit, the storage unit is configured to store a film material, and the transfer unit is configured to place the film material from the storage unit onto the base film on the conveying unit; a driving device (13), configured to drive the base film and the film material on the conveying unit to move synchronously; a die cutting device (2), configured to perform die cutting on the film material on the base film; and a detection device (12), configured to detect the film material (15) after die cutting.

IPC Classes  ?

• B26F 1/44 - Cutters thereforDies therefor
• G01N 21/956 - Inspecting patterns on the surface of objects

Abstract

Provided is a film laminator, comprising: a frame (19) and a working chamber (18). The film laminator further comprises: a product unwinding device (12) and a product rewinding device (13) for conveying a product to be laminated, wherein the product unwinding device (12) is used for unwinding the product, the product rewinding device (13) is used for rewinding the product, and the product unwinding device (12) and the product rewinding device (13) are both disposed in the working chamber (18); a film unwinding device (15) and a film rewinding device (14) for conveying the laminating film, wherein the film unwinding device (15) is used for unwinding the film, the film rewinding device (14) is used for rewinding the film, and the film unwinding device (15) and the film rewinding device (14) are both disposed in the working chamber (18); a film laminating device (17) disposed between the film unwinding device (15) and the film rewinding device (14), wherein the film is interposed between the film laminating device (17) and the product, and the film laminating device (17) laminates the film on the product; and an evacuating device, which communicates with the working chamber (18) to create a vacuum in the working chamber (18). The film laminator can reduce scratches on a plating layer and self-damage during winding, reduce generation of air bubbles, and reduce the mixing of dust.

IPC Classes  ?

• B29C 63/02 - Lining or sheathing, i.e. applying preformed layers or sheathings of plasticsApparatus therefor using sheet or web-like material
• B29C 31/00 - Handling, e.g. feeding of the material to be shaped
• B26F 1/38 - Cutting-outStamping-out

Abstract

Provided are a film detection system, detection method, and device. The detection system comprises: a platform (10), used for holding a to-be-detected film; an image capture device (20), used for capturing an image of the to-be-detected film according to preset capture parameters; a data processing device (30), separately connected to the platform (10) and the image capture device (20) and used for detecting, on the basis of the image of the to-be-detected film, the to-be-detected film by using a preset determination standard. The design of the detection system configuration achieves automatic detection of a small-size resin optical film of the existing art, thus resolving the technical problem of low detection accuracy and detection efficiency resulting from a reliance on manual detection.

IPC Classes  ?

• G01N 21/95 - Investigating the presence of flaws, defects or contamination characterised by the material or shape of the object to be examined

Abstract

An integral imaging apparatus, comprising a lens unit (1) and an image displaying and capturing collection device (2), the lens unit (1) comprising at least one lens (10); the image displaying and capturing collection device (2) is disposed at one side of the lens unit (1), that surface of the lens unit (1) and the collection device (2) being parallel. In capture mode, the collection device (2) is used to capture image information of a target object (01) by means of the lens unit (1), and in reproduction mode, the collection device (2) is used to display image information of the target object (01). The present integral imaging apparatus does not need to be aligned, the capture optical path and reproduction optical path have relatively good consistency, and the present integral imaging apparatus has better stability than separated integral imaging apparatuses in the prior art.

IPC Classes  ?

• G02B 27/22 - Other optical systems; Other optical apparatus for producing stereoscopic or other three-dimensional effects

Abstract

Provided are a quantum dot light-emitting device (12) and a backlight module. The backlight module comprises a backplane (11) and a diffusion plate (9) which are sequentially stacked. One surface of the backplane (11) facing the diffusion plate (9) is provided with multiple quantum dot light-emitting devices (12). The quantum dot light-emitting device (12) comprises an LED light-emitting chip (10), a support structure (1) and a lens integration structure (18). The lens integration structure (18) comprises a lens body (2), a quantum dot layer (3) and a first water and oxygen barrier layer (4). The lens body (2) has a recess. The quantum dot layer (3) and the first water and oxygen barrier layer (4) are sequentially arranged at the recess in a direction from a bottom end to an opening of the recess. The first water and oxygen barrier layer (4) covers the opening of the recess of the lens body (2). The lens integration structure (18) is adhered and fixed to the support structure (1). The invention can significantly reduce a failure rate of quantum dot excitation and manufacturing costs.

IPC Classes  ?

• G02F 1/13357 - Illuminating devices
• H01L 33/04 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a quantum effect structure or superlattice, e.g. tunnel junction
• F21S 8/00 - Lighting devices intended for fixed installation

Abstract

An optical component, an optical apparatus, and a manufacturing method for the optical component. The optical component comprises an optical structure layer (2) and a birefringent material layer (3); the birefringent material layer (3) is disposed on and in contact with a surface of the optical structure layer (2), the birefringent material layer (3) comprising a birefringent material; the surface of the optical structure layer (2) that is in contact with the birefringent material layer (3) is provided with multiple grooves (21), the multiple grooves (21) being used for aligning the directions of the molecules of the birefringent material. In the present optical component, the surface of the optical structure layer (2) that is in contact with the birefringent material layer (3) is provided with multiple grooves (21). Said grooves (21) act as an alignment structure and can align the directions of the molecules of the birefringent material in the birefringent material layer (3). In actual preparation, a micro-structure (20) having multiple grooves (21) can be formed in one go, thereby simplifying the preparation technique of the liquid crystal alignment structure on the lenticular lens array component of the present application, reducing the number of necessary manufacturing equipment, and lowering the cost of manufacturing alignment structures.

IPC Classes  ?

• G02B 3/00 - Simple or compound lenses
• G02F 1/1337 - Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
• G02F 1/29 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the position or the direction of light beams, i.e. deflection
• G02B 27/22 - Other optical systems; Other optical apparatus for producing stereoscopic or other three-dimensional effects

Abstract

Provided are an optical component and an optical device. The optical component comprises an optical structure layer (2) and a birefringent material layer (3). The birefringent material layer (3) is in contact with and provided at one surface of the optical structure layer (2). The birefringent material layer (3) comprises a birefringent material. Multiple grooves (21) are arranged at the surface of the optical structure layer (2) in contact with the birefringent material layer (3). The multiple grooves (21) are used to align orientations of molecules of the birefringent material layer. In an actual manufacturing process, a microstructure (20) having multiple grooves (21) can be formed at one time, thereby simplifying a manufacturing process for a liquid crystal alignment structure of a lenticular lens array component, reducing required manufacturing equipment, and accordingly reducing costs of manufacturing the alignment structure.

IPC Classes  ?

• G02B 3/00 - Simple or compound lenses
• G02F 1/1337 - Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers

Abstract

Provided are a quantum dot light-emitting device (12) and a backlight module. The backlight module comprises a backplane (11) and a diffusion plate (9) which are sequentially stacked. One surface of the backplane (11) facing the diffusion plate (9) is provided with multiple quantum dot light-emitting devices (12). The quantum dot light-emitting device (12) comprises an engagement slot (1), a quantum dot device (3), a lens (4) and at least one LED light-emitting chip (10). The engagement slot (1) has a hollow portion (16), a bottom portion (14) and a side wall (15). An opening is arranged at the bottom portion (14). The LED light-emitting chip (10) is received in the opening. An inner surface (6a) of the bottom portion (14) has alternating recesses and protrusions (13). A quantum dot device (3) is provided in the hollow portion of the engagement slot (1). The lens (4) is adhered and fixed to a top portion of the side wall (15). The inner surface (6a) of the bottom portion (14) having the concavo-convex structure (13) enables incident light generated by the LED light-emitting chip (10) to be diffused, and exhibits better thermal reflow performance, thereby reducing impact of heat generated during operation of the LED light-emitting chip (10) in the quantum dot device (3).

IPC Classes  ?

• G02F 1/13357 - Illuminating devices

Abstract

A 2D and 3D switchable cylindrical lens unit, and a display and a control method thereof. The cylindrical lens unit comprises: an upper electrode layer (1) and a lower electrode layer (5), the upper electrode layer (1) and the lower electrode layer (5) being connected together by means of a sealant (6); a cylindrical lens membrane layer (2) attached to the lower surface of the upper electrode layer (1); the gap between the cylindrical lens membrane layer (2) and the lower electrode layer (5) being filled with a liquid solvent (3), in which transparent electrophoretic particles (4) are dispersed. Compared with schemes employing liquid crystal to change the refractive index, the invention has the advantages of simple structure, non-toxic environmental protection and low production cost.

IPC Classes  ?

• G02B 27/22 - Other optical systems; Other optical apparatus for producing stereoscopic or other three-dimensional effects
• G02F 1/1335 - Structural association of cells with optical devices, e.g. polarisers or reflectors

Abstract

A window film is disclosed. The window film includes: a flexible transparent base material; a first metal target material film, disposed on the surface of the flexible transparent base material; a first high refractive index compound film, disposed on the surface of the first metal target material film; a first metal oxide film, disposed on the surface of the first high refractive index compound film; a first silver-containing metal film, disposed on the surface of the first metal oxide film; a second metal target material film, disposed on the surface of the first silver-containing metal film; and a second high refractive index compound film, disposed on the surface of the second metal target material film. The window film has better adherence, and is less likely to peel off. In addition, the window film also has better oxidation resistance, and is less likely to be oxidized. Furthermore, the window film also has a better optical effect and heat insulation effect.

IPC Classes  ?

• C23C 14/35 - Sputtering by application of a magnetic field, e.g. magnetron sputtering
• B32B 9/04 - Layered products essentially comprising a particular substance not covered by groups comprising such substance as the main or only constituent of a layer, next to another layer of a specific substance
• B32B 15/04 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance
• C23C 14/08 - Oxides
• C23C 14/18 - Metallic material, boron or silicon on other inorganic substrates
• C23C 14/20 - Metallic material, boron or silicon on organic substrates
• C23C 14/34 - Sputtering
• C23C 14/54 - Controlling or regulating the coating process

Abstract

A device (7) having touch control and three-dimensional image display functionalities comprises a touch control component (10), an ultra-thin cylinder lens component (130), and a two-dimensional image display component (50). The ultra-thin cylinder lens component (130) comprises a cylinder lens array layer structure (132) and a cylinder lens adhesive bonding layer structure (131). The cylinder lens array layer structure (132) can be directly configured on the touch control component (10) by applying a plane-to-plane ultraviolet curing technique to the cylinder lens array. Further, the cylinder lens array layer structure (132) can be connected and fixed to the two-dimensional image display component (50) via the cylinder lens adhesive bonding layer structure (131) by applying a plane-to-plane alignment and adhering technique, thereby accomplishing objects of thinning and enhancing image quality. Also provided is a method of manufacturing a device having touch control and three-dimensional image display functionalities.

IPC Classes  ?

• G02B 27/22 - Other optical systems; Other optical apparatus for producing stereoscopic or other three-dimensional effects
• G06F 3/041 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means

Abstract

A device (7) having touch control and three-dimensional image display functionalities comprises a touch control component (10), an ultra-thin cylinder lens component (130), and a two-dimensional image display component (50). The ultra-thin cylinder lens component (130) comprises a concave cylinder lens array layer structure (132) and a cylinder lens adhesive bonding layer structure (131). The concave cylinder lens array layer structure (132) can be directly configured on the touch control component (10) by applying a plane-to-plane ultraviolet curing technique to the cylinder lens array. Further, the concave cylinder lens array layer structure (132) can be connected and fixed to the two-dimensional image display component (50) via the cylinder lens adhesive bonding layer structure (131) by applying a plane-to-plane alignment and adhering technique, thereby accomplishing objects of structure thinning and enhancing image quality.

IPC Classes  ?

• G02B 27/22 - Other optical systems; Other optical apparatus for producing stereoscopic or other three-dimensional effects
• G06F 3/041 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means

Abstract

A surface relief liquid crystal lenticular device, a manufacturing method for same, and a display device comprising same. The liquid crystal lenticular device (60) comprises an upper substrate element (161), a lower substrate element (171), a plano-concave lens element (64), a plurality of liquid crystal molecules (81), a sealing plastic structure (82), an electrically-conductive structure (83), and an external power supply (V). The lower substrate element (171) comprises a lower ITO electrode layer (62), a secondary ITO electrode (62a), an electrical blocking structure (62b), and several lower alignment targets (63). The upper substrate element (161) comprises an upper ITO electrode layer (72), a plurality of shading parts (75), and several upper alignment targets (73). The plano-concave lens element (64) is arranged on the lower ITO electrode layer (62) of the lower substrate element (171) and comprises a plurality of concave lens surfaces (64a), a sealing plastic surface (64b), and a plurality of spacing surfaces (64c). The plurality of liquid crystal molecules (81) are arranged within the concave lens surfaces (64a). The external power supply (V) is electrically connected to the lower ITO electrode layer (62) and to the secondary ITO electrode (62a). The plurality of liquid crystal lenticular lenses are driven by a voltage to achieve the goal of a 2D and 3D switchable display.

IPC Classes  ?

• G02B 27/22 - Other optical systems; Other optical apparatus for producing stereoscopic or other three-dimensional effects
• H04N 13/04 - Picture reproducers

Abstract

A surface relief liquid crystal lenticular device (60), a manufacturing method for same, and a display device using same. The surface relief liquid crystal lenticular device (60) is constituted primarily by an upper substrate element (171), a lower substrate element (161), a plano-convex lens element (64), a plurality of liquid crystal molecules (81), a sealing plastic structure (82), an electrically-conductive structure (83), and an external power supply (V). The lower substrate element (161) comprises a lower ITO electrode layer (62), a secondary ITO electrode (62a), a plurality of shading parts (65), and several lower alignment targets (63). The upper substrate element comprises an upper ITO electrode layer (72) and several upper alignment targets (73). The plano-convex lens element (64) is arranged on the lower ITO electrode layer (62) of the lower substrate element (161). The plurality of liquid molecules (81) are arranged on the convex lens surface (64a). The external power supply (V) is electrically connected to the lower ITO electrode layer (62) and to the secondary ITO electrode (62a). The plurality of liquid crystal lenticular lenses are driven by an appropriate voltage to achieve the goal of a 2D and 3D switchable display.

IPC Classes  ?

• G02F 1/29 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the position or the direction of light beams, i.e. deflection

Abstract

The display device includes an image display the screen of which includes a plurality of sub-pixels of three primary colors R, G and B for displaying a 2D image and a 3D image; and a DFD-PDLC lenticular lens array which includes a plurality of parallel DFD-PDLC lenticular lens elements, wherein the direction of the long axis of each of the DFD-PDLC lenticular lens elements is vertical or slant to the screen of an image display, the DFD-PDLC lenticular lens array is installed in front of the screen of the image display, the optical refractive index of the DFD-PDLC lenticular lens elements is variated under the drive of an external drive voltage V(f) to switch between the display of a 2D image and the display of a 3D image on the screen of the image display, wherein f is the drive frequency of the external drive voltage.

IPC Classes  ?

• G02F 1/1334 - Constructional arrangements based on polymer-dispersed liquid crystals, e.g. microencapsulated liquid crystals
• G02B 27/22 - Other optical systems; Other optical apparatus for producing stereoscopic or other three-dimensional effects
• G02F 1/29 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the position or the direction of light beams, i.e. deflection

Abstract

A window film, comprising: a flexible transparent substrate; a first metal target material film disposed on the surface of the flexible transparent substrate; a first high refractive index compound film disposed on the surface of the first metal target material film; a first metal oxide film disposed on the surface of the first high refractive index compound film; a first silver-containing metal film disposed on the surface of the first metal oxide film; a second metal target material film disposed on the surface of the first silver-containing metal film; a second high refractive index compound film disposed on the surface of the second metal target material film. The window film has better adherence, and is less likely to peel off. Moreover, the window film also has better oxidation resistance, and is less likely to be oxidized. Furthermore, the window film also has a better optical effect and thermal insulation effect.

IPC Classes  ?

• B32B 15/04 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance
• B32B 9/04 - Layered products essentially comprising a particular substance not covered by groups comprising such substance as the main or only constituent of a layer, next to another layer of a specific substance
• C23C 14/35 - Sputtering by application of a magnetic field, e.g. magnetron sputtering

Abstract

The display device includes an image display the screen of which includes a plurality of sub-pixels of three primary colors R, G and B for displaying a 2D image and a 3D image; and a DFD-PDLC lenticular lens array which includes a plurality of parallel DFD-PDLC lenticular lens elements, wherein the direction of the long axis of each of the DFD-PDLC lenticular lens elements is vertical or slant to the screen of an image display, the DFD-PDLC lenticular lens array is installed in front of the screen of the image display, the optical refractive index of the DFD-PDLC lenticular lens elements is variated under the drive of an external drive voltage V(f) to switch between the display of a 2D image and the display of a 3D image on the screen of the image display, wherein f is the drive frequency of the external drive voltage.

IPC Classes  ?

• G02F 1/1334 - Constructional arrangements based on polymer-dispersed liquid crystals, e.g. microencapsulated liquid crystals
• G02B 27/22 - Other optical systems; Other optical apparatus for producing stereoscopic or other three-dimensional effects
• G02F 1/29 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the position or the direction of light beams, i.e. deflection

Abstract

A dual-directional 3D image displaying method, being used in a case when a flat-panel display screen and a view separation device are used for dual-directional 3D image displaying, which comprises the steps of: using a display screen having a sub-pixel arrangement of 45-degree slant angle to display a multi-view 3D combined image; and using a view separation device featured by a 45-degree slant angle to perform a view separation operation upon the multi-view 3D combined image. Thereby, an object of dual-directional displaying of 3D images can be achieved using only one view separation device, without being bothered by conventional problems, such as cross-talk and color distortion.

IPC Classes  ?

• G02B 27/22 - Other optical systems; Other optical apparatus for producing stereoscopic or other three-dimensional effects

Abstract

The present invention relates to a method for displaying a three-dimensional (3D) image, which is further composed of a multi-view 3D image combination method and a parallax barrier structure design, and is being used in a case when a common flat-panel display screen and a view separation device are used to display a 3D image.

IPC Classes  ?

• G02B 27/22 - Other optical systems; Other optical apparatus for producing stereoscopic or other three-dimensional effects

Abstract

A multi-directional comb filtering in a digital video decoder is provided. Some embodiments of the present invention provide for a method of filtering, using a multi-directional comb filter, pixel data from a sequence of fields of pixel data, wherein the fields of pixel data comprise a previous field, a current field and a next field, and wherein each of said fields includes a previous line, a current line, a next line.

IPC Classes  ?

• H04N 7/12 - Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal

Abstract

A multi-view 3D image display method is provided, which is mainly to propose a multi-view 3D image combination method and slantwise strip parallax barrier structure design and optimization methods without reducing a sub-pixel aperture ratio during display of a multi-view 3D image by using a planar display screen having sub-pixels in strip configuration and a slantwise strip parallax barrier, so as to achieve objectives of solving a direct cross-talk phenomenon and balancing a phenomenon of asymmetrical left and right viewing freedom at the same time. In addition, for display of a multi-view 3D image having a total view number greater than two, a multiple multi-view 3D image combination and display method is proposed, so as to achieve an objective of alleviating a defect of discontinuous parallax jump.

IPC Classes  ?

• H04N 13/04 - Picture reproducers
• H04N 9/47 - Colour synchronisation for sequential signals

Abstract

A 3D image display device mainly includes a multi-view image, a view memory, a memory image configuration, combination, and conversion procedure, a display memory, a conversion display controller, a display screen having sub-pixels in Delta configuration, and a view separation device. The memory image configuration, combination, and conversion procedure mainly performs processes of sub-pixel image configuration sequence conversion and multi-view image combination on the multi-view image, and outputs a recovered multi-view combined image. The conversion display controller mainly performs sub-pixel image data configuration sequence conversion on image data on even-numbered or odd-numbered horizontal scan lines of the recovered multi-view combined image, and then outputs the horizontal scan image data. The display screen having sub-pixels in Delta configuration receives the horizontal scan image data and displays the recovered multi-view combined image. The view separation device performs view separation on the recovered multi-view combined image to provide a 3D image.

IPC Classes  ?

• G06T 15/00 - 3D [Three Dimensional] image rendering
• G09G 5/00 - Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators

Abstract

A multi-functional liquid crystal parallax barrier device is a liquid crystal device mainly formed by two parallax barrier structures, namely, a double-view vertical strip parallax barrier and a multi-view slant-and-step parallax barrier, in which the two parallax barriers are respectively disposed corresponding to different screen display directions, so as to display a double-view 3D image and a multi-view 3D image in different display directions, in addition to displaying a 2D image, through the control of an appropriate driving voltage and the use of a flat panel display screen.

IPC Classes  ?

• G02F 1/1335 - Structural association of cells with optical devices, e.g. polarisers or reflectors
• G02F 1/13 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells

Abstract

A multi-functional liquid crystal parallax barrier device is a liquid crystal device mainly formed by two parallax barrier structures, namely, a double-view vertical strip parallax barrier and a multi-view slant-and-step parallax barrier, in which the two parallax barriers are disposed in the same horizontal display direction, so as to display a double-view 3D image and a multi-view 3D image, in addition to displaying a 2D image, through the control of an appropriate driving voltage and the use of a flat panel display screen.

IPC Classes  ?

• G02F 1/1335 - Structural association of cells with optical devices, e.g. polarisers or reflectors
• G09G 5/00 - Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
• G02B 27/22 - Other optical systems; Other optical apparatus for producing stereoscopic or other three-dimensional effects
• H04N 13/04 - Picture reproducers

Abstract

A full-screen 3D image display device provides a dynamic liquid crystal parallax barrier device for solving a 3D image resolution deterioration problem caused by view separation of a multi-view 3D image displayed by a conventional parallax barrier, and achieves the purpose of displaying a multi-view 3D image with a full-screen image resolution through a multi-view image dynamic combination and display procedure and a barrier electrode dynamic driving procedure.

IPC Classes  ?

• G06T 15/00 - 3D [Three Dimensional] image rendering

Abstract

A method for positioning a viewing center of a parallax barrier mainly includes: disposing multiple alignment markers respectively at appropriate places of the parallax barrier and a flat panel display, and performing position measurement and alignment of the multiple alignment markers, so as to achieve a purpose of setting a viewing center at a specific and appropriate position.

IPC Classes  ?

• G01B 11/00 - Measuring arrangements characterised by the use of optical techniques

Abstract

A method for replicating production of a 3D parallax barrier is capable of transfer-printing a 3D parallax barrier pattern on a planar transparent substrate mainly with a glass photo mask having the 3D parallax barrier pattern through processes of photo resistor coating, exposure, and development by using a photolithography technology, thereby achieving the purpose of replicating production.

IPC Classes  ?

• G03F 7/20 - ExposureApparatus therefor

Abstract

A parallax barrier 3D image display method is provided. Particularly, a vertical strip parallax barrier design method is provided to avoid transverse ghost images generated by a conventional parallax barrier and directed to arrangement of sub-pixels on a screen of a flat panel display, which displays multi-view 3D images with minimal ghost images, thereby achieving the purpose of optimum 3D image display.

IPC Classes  ?

• G02B 27/22 - Other optical systems; Other optical apparatus for producing stereoscopic or other three-dimensional effects

Abstract

A device having 2D and 3D image display functions for a mobile phone is provided. A plurality of image pickup elements, a 2D and 3D touch screen, and a 2D and 3D function key are installed on the mobile phone, so as to achieve the function of 3D image capture and viewing as well as 3D interface operations.

IPC Classes  ?

• H04B 1/38 - Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving

Abstract

In one example, a digital video resampler and decoder is disclosed. An input buffer is coupled to a source of a video signal oversampled by at least two times. A horizontal synchronization detector is coupled to the input buffer, and detects horizontal synchronization boundaries. A counter is coupled to the horizontal synchronization detector to count a number of samples between horizontal synchronization boundaries. A comparator is coupled to the counter and compares the counted number of samples to a reference count. A sample corrector is coupled to the input buffer and modifies a block of samples based on a result from the comparator. An output buffer is coupled to the sample corrector to hold the modified block of samples. A comb filter is coupled to the output buffer, and generates first and second three-dimensional color values based on the modified block of samples.

IPC Classes  ?

• H04N 7/12 - Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal

Abstract

A multi-directional comb filtering in a digital video decoder is provided.

IPC Classes  ?

• H04N 7/12 - Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal

Abstract

An adaptive gain and offset control for a digital video analog to digital converter is provided. A gain indicator and/or an offset indicator, which are used as inputs control signals to an analog-to-digital converter, are determined based on a detected maximum level and a detected blanking level from an input video signal. The gain and offset indicators may be determined independently from a minimum level of the video signal.

IPC Classes  ?

• H03M 1/12 - Analogue/digital converters
• H04N 5/08 - Separation of synchronising signals from picture signals
• H04N 5/52 - Automatic gain control

Abstract

A digital video decoder architecture is provided wherein chrominance values are determined first, then luminance values are determined, in part, based on the previously determined chrominance values. In this architecture, luminance separation occurs after and based on one or more chrominance values.

IPC Classes  ?

• H04N 9/66 - Circuits for processing colour signals for synchronous demodulators
• H04N 9/77 - Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase

Abstract

A delay-locked loop (DLL) to produce a plurality of delayed clock signals comprising combinational logic for false lock detection is provided. The combinational logic uses only a subset of the plurality of delayed clock signals to provide a forward indicator indicating a delay period (Δt) is longer than a desired delay period. The combinational logic further provides a back indicator indicating the delay period (Δt) is shorter than a desired delay period.

IPC Classes  ?

• H03L 7/06 - Automatic control of frequency or phaseSynchronisation using a reference signal applied to a frequency- or phase-locked loop

Abstract

A method and system for suppressing color-crossing error in decoded video signals is presented. The color-crossing error suppression method and system uses a first suppression technique at a pixel location for a first subset of fields exhibiting color-crossing error at a pixel location then uses a second suppression technique at the pixel location for a second subset of fields exhibiting color-crossing error at the pixel location. The second subset of fields follows the first subset of fields in the video signals.

IPC Classes  ?

• H04N 9/64 - Circuits for processing colour signals
• H04N 9/77 - Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase

Abstract

A method and system for accumulating stillness characteristics is presented. The method and system generates field stillness characteristics for a current pixel of a current field. The field stillness characteristic is accumulated with an accumulated stillness characteristic that corresponds to a pixel location of the current pixel. The accumulated stillness characteristic includes stillness information regarding previous pixels of previous fields in the same pixel location as the current pixel.

IPC Classes  ?

• H04N 5/14 - Picture signal circuitry for video frequency region
• H04N 11/20 - Conversion of the manner in which the individual colour picture signal components are combined, e.g. conversion of colour television standards

Abstract

A method and system for smoothing a frame to remove jagged edges are presented. The method and system generates a smoothing filter with consolidated pixels. Edges within the smoothing filter are analyzed to select an edge direction used for smoothing. A smoothed pixel is generated based on a normalized linear combination of a first edge end pixel, a second edge end pixel and center entry of the smoothing filter. Subtle structure checking can be used to determine whether to use the smoothed pixel in place of the current pixel.

IPC Classes  ?

• H04N 5/21 - Circuitry for suppressing or minimising disturbance, e.g. moire or halo

Abstract

An image enhancement unit and method for enhancing the image quality of a video stream is presented. The image enhancement unit combines a contour enhancement unit, a luminance contrast stretching unit, a color transient improvement unit, and a color saturation control unit to enhance both the luminance and chrominance values in the video stream. Specifically, the contour enhancement unit processes the luminance values to improve the contours of the images in the video steam. The luminance contrast stretching unit further improves the luminance by enhancing the contrast in the images. The color transient improvement unit processes the chrominance values to remove blurring around along the edges of color transitions and the color saturation control unit increases the color saturation to improve the appearance of the images.

IPC Classes  ?

• H03M 1/12 - Analogue/digital converters