Abrégé

A projection device and a control method thereof. When an abnormality occurs in a fan, M light emitting elements among N light emitting elements are turned off, and a driving current of (N−M) light emitting elements is adjusted to be higher than a preset current, and when the driving current of P light emitting elements among the N light emitting elements is lower than the preset current, at least one of the P light emitting elements is turned off, and the driving current of a remaining portion that are not turned off of the P light emitting elements is adjusted to be higher than the preset current, so that when the fan is abnormal and needs to be turned off, or when the fan needs to be turned off in low noise/low brightness mode, a heat dissipation module may still be used to effectively dissipate heat.

Classes IPC  ?

• G03B 21/16 - RefroidissementPrévention de la surchauffe
• G03B 21/20 - Boîtes à lumière

Abrégé

A light valve module and a projection device are provided. The light valve module includes a shell, an optical sheet, a transmissive light valve, and a heat dissipation module. An airflow channel is situated between the optical sheet and the transmissive light valve. The heat dissipation module includes a cooling fan, a refrigeration element, and a heat exchange element. An air outlet of the cooling fan communicates with an entrance port of the airflow channel. A cold surface of the refrigeration element is connected to the heat exchange element and faces an exit port of the airflow channel. The heat exchange element is located between the refrigeration element and the exit port of the airflow channel. An air inlet of the cooling fan faces the extension end of the heat exchange element.

Classes IPC  ?

• H04N 9/31 - Dispositifs de projection pour la présentation d'images en couleurs

Abrégé

Disclosed are a projected image correction system, a projected image correction method and a non-transitory computer-readable recording medium. The projected image correction system includes a projector and a portable electronic device. In the portable electronic device, a user interface with multiple icons is displayed; a function interface corresponding to a selected icon is displayed; in response to operation of the function interface and sensing of an acceleration sensor, the first and the second motion sensing data are respectively received from the acceleration sensor at the first and the second time points sequentially; parameter correction amount corresponding to a function type of the operation is calculated based on the first and the second motion sensing data; and at the second time point, the function type and parameter correction amount are transmitted to the projector, so that the projector adjusts the projected image based on the function type and parameter correction amount.

Classes IPC  ?

• G09G 3/00 - Dispositions ou circuits de commande présentant un intérêt uniquement pour l'affichage utilisant des moyens de visualisation autres que les tubes à rayons cathodiques
• G06F 3/041 - Numériseurs, p. ex. pour des écrans ou des pavés tactiles, caractérisés par les moyens de transduction
• G06T 5/80 - Correction géométrique
• G09G 3/36 - Dispositions ou circuits de commande présentant un intérêt uniquement pour l'affichage utilisant des moyens de visualisation autres que les tubes à rayons cathodiques pour la présentation d'un ensemble de plusieurs caractères, p. ex. d'une page, en composant l'ensemble par combinaison d'éléments individuels disposés en matrice en commandant la lumière provenant d'une source indépendante utilisant des cristaux liquides

Abrégé

An illumination system and a projection device including the illumination system are disclosed. The illumination system includes a light source, a first turning prism, a second prism, and a light homogenizing element. The light source is configured to generate a light beam. The first turning prism is disposed on the travel path of the light beam. The second turning prism is disposed on the travel path of the light beam from the first turning prism and guides the light beam with the first turning prism. The light homogenizing element is disposed between the first turning prism and the second turning prism and homogenizes the light beam. By the aforementioned configuration, the light path of the illumination system is shortened, and the light uniformity of the light beam is ensured. Based on the advantages of the illumination system, the projection device achieves the objective of reducing volume of a micro projector.

Classes IPC  ?

• G03B 21/20 - Boîtes à lumière

Abrégé

A lighting module and a projection device are disclosed. The lighting module includes a first housing, a second housing, a heat dissipation element, an elastic seal including three sealing parts, and a heat-generating component. The first housing is assembled to the second housing, an opening is formed on a first side of the assembled first housing and the second housing. The heat dissipation element covers the opening, an accommodation space accommodation space surrounded by the heat dissipation element, the first housing and the second housing. A first sealing part seals the joint between the first housing and the second housing, a second sealing part seals the joint between the first housing and the heat dissipation element, and a third sealing part seals the joint between the second housing and the heat dissipation element. The first sealing part, the second sealing part and the third sealing part are integrally formed.

Classes IPC  ?

• G03B 21/16 - RefroidissementPrévention de la surchauffe
• G03B 21/20 - Boîtes à lumière

Abrégé

A projected image correction system and method and a non-transitory computer-readable recording medium are provided. A processor of a portable electronic device is configured to perform the following steps: activating a display to display a function interface including multiple function icons; obtaining multiple original coordinates of multiple adjustable points corresponding to a projected image of a projector; arranging positions of the function icons on the function interface so that positional relationships of the function icons respectively correspond to positional relationships of the adjustable points in the projected image; in response to first touch-drag operation on the first function icon, generating first touch-input data for each unit of time; calculating first updated coordinate of first adjustable point corresponding to the first function icon based on the first touch-input data; and transmitting the first updated coordinate to the projector, so that the projector correspondingly adjusts the first adjustable point of the projected image to the first updated coordinate.

Classes IPC  ?

• H04N 9/31 - Dispositifs de projection pour la présentation d'images en couleurs
• G06F 3/04817 - Techniques d’interaction fondées sur les interfaces utilisateur graphiques [GUI] fondées sur des propriétés spécifiques de l’objet d’interaction affiché ou sur un environnement basé sur les métaphores, p. ex. interaction avec des éléments du bureau telles les fenêtres ou les icônes, ou avec l’aide d’un curseur changeant de comportement ou d’aspect utilisant des icônes
• G06F 3/0486 - Glisser-déposer

Abrégé

A backlight module includes first and second light source modules, and a light guide module including a light guide plate and a viewing angle control unit. The light guide plate has multiple first and second microstructures, first and second light incident surfaces, a light exit surface, and a bottom surface. An angle between the first and second light incident surfaces is greater than or equal to 60 degrees and less than or equal to 120 degrees. The viewing angle control unit is at least disposed on the light exit surface and the bottom surface and adjacent to the first light source module or disposed between the first light incident surface and the first light source module. A first reflective surface and the bottom surface of each first microstructure have a first included angle. A second reflective surface and the bottom surface of each second microstructure has a second included angle.

Classes IPC  ?

• G02F 1/13 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des cristaux liquides, p. ex. cellules d'affichage individuelles à cristaux liquides
• F21V 8/00 - Utilisation de guides de lumière, p. ex. dispositifs à fibres optiques, dans les dispositifs ou systèmes d'éclairage
• G02F 1/13357 - Dispositifs d'éclairage

Abrégé

A light source device includes a heat dissipation base, a circuit board, a light source unit, a mask cover, a plurality of pressing members, and a plurality of first fasteners. The circuit board is disposed on the heat dissipation base. The light source unit, which is electrically connected to the circuit board, is disposed on the heat dissipation base and located in a through hole of the circuit board. The plurality of pressing members is fixed on the mask cover. The plurality of first fasteners passes through the mask cover, the plurality of circuit board, and the heat dissipation base in sequence, to fasten the mask cover and the circuit board on the heat dissipation base, and the mask cover is connected to the light source unit on the heat dissipation base through the plurality of pressing members.

Classes IPC  ?

• G03B 21/16 - RefroidissementPrévention de la surchauffe
• G03B 21/20 - Boîtes à lumière
• H05K 1/02 - Circuits imprimés Détails

Abrégé

A head-mounted display device includes a housing, an optical engine module, and a heat dissipating module. The housing has a display portion and a support portion. The display portion has a first space. The support portion has a second space communicated with the first space. The support portion has a side wall and a heat dissipating wall. A material of the heat dissipating wall is an infrared transmitting material and different from a material of the side wall. The optical engine module includes a heat source and is disposed in the first space. A part of the heat dissipating module is disposed in the first space and connected to the heat source. Another part of the heat dissipating module is disposed in the second space. Heat generated by the heat source is transferred to the heat dissipating module and transferred to an outside of the housing by radiation.

Classes IPC  ?

• G02B 27/01 - Dispositifs d'affichage "tête haute"

Abrégé

A light valve module and a projection device with the light valve module are provided. The light valve module includes a light valve, an interposer substrate, a thermal conductive component, and a flexible circuit board. The light valve includes a connection surface with a heat dissipation region and an electrical connection region. The interposer substrate includes a first surface and a second surface. The interposer substrate is disposed on the connection surface and is electrically connected to the at least one light valve by the first surface. The thermal conductive component is adjacently disposed with the interposer substrate and has a thermal conductive surface which is attached to the heat dissipation region. The flexible circuit board is disposed on the interposer substrate and the thermal conductive component, and the interposer substrate is electrically connected to the flexible circuit board by the second surface.

Classes IPC  ?

• H04N 9/31 - Dispositifs de projection pour la présentation d'images en couleurs
• H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage

Abrégé

The disclosure provides a projection device, including a lighting system, a light valve assembly, and a projection lens. The lighting system includes a light source module, a first light path adjustment element, a light combining and splitting element, a wavelength conversion assembly, and a second light path adjustment element. The light source module provides a light source beam along a first direction. The first light path adjustment element transmits the light source beam along a second direction. The light combining and splitting element is disposed on a transmission path of the light source beam. The wavelength conversion assembly converts the light source beam into a conversion light beam transmitted to the light combining and splitting element. The light combining and splitting element transmits the conversion light beam along a third direction. The second light path adjustment element transmits the conversion light beam along a fourth direction.

Classes IPC  ?

• G03B 21/20 - Boîtes à lumière
• G02B 26/00 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables

Abrégé

A light uniform module includes a light uniform column, a sleeve, and an end fastening member. The light uniform column has a light inlet end and a light outlet end. The light inlet end has a light inlet surface. The light outlet end has a light outlet surface. The sleeve has an open end and a stop end. The sleeve is sleeved outside the light uniform column, and the sleeve accommodates the light uniform column. The end fastening member is disposed at the open end of the sleeve, and the end fastening member fastens relative positions of the light uniform column and the sleeve. The end fastening member has a frame to form a clamping opening, and the light inlet end of the light uniform column penetrates the clamping opening and stretches out of the sleeve from the open end of the sleeve. A projection device is also provided.

Classes IPC  ?

• G03B 21/20 - Boîtes à lumière
• F21K 9/65 - Agencements optiques intégrés dans la source lumineuse, p. ex. pour améliorer l’indice de rendu des couleurs ou l’extraction de lumière spécialement adaptés à la modification des caractéristiques ou de la distribution de la lumière, p. ex. par réglage des parties
• F21Y 115/10 - Diodes électroluminescentes [LED]
• F21Y 115/30 - Lasers à semi-conducteurs

Abrégé

Provided is an illumination system including a light source module and a light guide module. The light source module includes a first light source module providing a first light beam toward a first direction, and a second light source module and a third light source module providing a second light beam and a third light beam toward a second direction. The light guide module includes a first light splitting element, a second light splitting element, and a reflecting mirror, wherein the second light splitting element is at the downstream of the first light splitting element. The light guide module enables the first light beam, the third light beam, and the second light beam to be transmitted along the second direction. The disclosure also provides a projection device.

Classes IPC  ?

• G03B 21/20 - Boîtes à lumière

Abrégé

An adjustment module, an optical engine module, and a projection device including the adjustment module and optical engine module are disclosed. The projection device comprises a light source module that provides an illumination beam. The optical engine module receives the illumination beam and converts it into an image beam. The adjustment module is positioned between the light source module and the light entry portion of the optical engine module. The light source module is secured to a substrate of the adjustment module. The adjustment module includes the substrate, a first adjustment component, and a second adjustment component. By the first adjustment component, the adjustment module moves the light source module in a first extension direction, and by the second adjustment component, the adjustment module moves the light source module in a second extension direction, thereby aligning the light source module and optical engine module.

Classes IPC  ?

• G03B 21/14 - Projecteurs ou visionneuses du type par projectionLeurs accessoires Détails

Abrégé

A light source system includes laser and excitation light source modules providing first and second light beams respectively, a light-combining element, a first light homogenizing element, a wavelength conversion element, and a second light homogenizing element. The first light homogenizing element has a deflection angle on a plane perpendicular to an optical axis of the second light beam. The light-combining element forms a combined light beam from the first light beam and the second light beam. The second light homogenizing element receives the combined light beam and generates an illumination light beam. A light spot formed by the fluorescent light beam on a light incident surface of the second light homogenizing element has a first shape, and the first shape corresponds to the shape of the light incident surface of the second light homogenizing element.

Classes IPC  ?

• G03B 21/20 - Boîtes à lumière

Abrégé

A wavelength conversion module includes a substrate, a barrier wall structural layer, a plurality of wavelength conversion layers and a plurality of quantum dot particles. The substrate has a surface. The barrier wall structural layer is disposed on the surface and defines a plurality of recesses. Each of the wavelength conversion layers is located in one of the recesses. The quantum dot particles are disposed in the wavelength conversion layers. A backlight module having the wavelength conversion module and a manufacturing method of the wavelength conversion module are also provided.

Classes IPC  ?

• G02F 1/017 - Structures avec une variation de potentiel périodique ou quasi périodique, p. ex. superréseaux, puits quantiques
• F21V 8/00 - Utilisation de guides de lumière, p. ex. dispositifs à fibres optiques, dans les dispositifs ou systèmes d'éclairage
• G02F 1/01 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur
• G02F 1/25 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur pour la commande de la couleur en ce qui concerne la teinte ou la longueur d'onde prédominante

Abrégé

A projection lens module including a lens barrel, a lens element assembly, a focus ring and a shielding member is provided. The lens barrel has an accommodation space and a light exit opening. The lens element assembly is disposed in the accommodation space. The focus ring is disposed on an outer side of the lens barrel, and the focus ring is configured to drive the lens barrel to rotate relative to an optical axis of the lens element assembly. The shielding member is disposed on the outer side of the lens barrel. The shielding member is connected to the focus ring and covers a part of the light exit opening of the lens barrel. The shielding member is configured to move in a first direction with the focus ring, and a relative distance between the shielding member and the focus ring on the optical axis is unchanged.

Classes IPC  ?

• G03B 11/04 - Parasoleils ou couvercles pour évincer la lumière indésirable sur les objectifs, viseurs ou auxiliaires de mise au point
• G02B 7/02 - Montures, moyens de réglage ou raccords étanches à la lumière pour éléments optiques pour lentilles
• G03B 21/14 - Projecteurs ou visionneuses du type par projectionLeurs accessoires Détails

Abrégé

A light source module includes a light source emitting an illumination beam having a first polarization state, a polarizing beam splitter disposed on a light exit side of the light source, a QWF disposed between the polarizing beam splitter and the lens array, a first reflector, and a lens array disposed between the first reflector and the QWF. The illumination beam is transmitted to the polarizing beam splitter, the QWF, the lens array, and the first reflector sequentially; after being reflected by the first reflector to return in a reverse direction, the illumination beam is converted into a second polarization state different from the first polarization state, and is transmitted to and then moved away from the polarizing beam splitter. A projection device having the light source module is also provided.

Classes IPC  ?

• G02B 27/28 - Systèmes ou appareils optiques non prévus dans aucun des groupes , pour polariser
• G02B 27/09 - Mise en forme du faisceau, p. ex. changement de la section transversale, non prévue ailleurs
• G02B 27/18 - Systèmes ou appareils optiques non prévus dans aucun des groupes , pour projection optique, p. ex. combinaison de miroir, de condensateur et d'objectif

Abrégé

An illuminating system includes a light source module and a light homogenizing element. The light source module includes at least one sub-light source module, and each sub-light source module includes a light-emitting element, a wavelength conversion element, a light-splitting element, a reflective element and a light guide element. The reflective element is configured to reflect the exited light beam converted by the wavelength conversion element to the light guide element. The light guide element includes a light incident surface, a reflective surface and a light exit surface. By designing the angle between the light incident surface of the light guide element and the light exit surface to be an acute angle, combined with the deflection configuration of the reflective element, the excited beam may be transmitted along different transmission paths without optical loss.

Classes IPC  ?

• H04N 9/31 - Dispositifs de projection pour la présentation d'images en couleurs

Abrégé

A display apparatus including a self-luminous display panel and a third polarizer, a second electrically-controlled viewing angle switching device, a second polarizer, a first electrically-controlled viewing angle switching device, and a first polarizer sequentially stacked on a display surface of the self-luminous display panel is provided. The first switching device includes a first liquid-crystal layer and first and second alignment layers. The first alignment layer is located between the first liquid-crystal layer and the first polarizer. A first absorption axis of the first polarizer is parallel or perpendicular to a first alignment direction of the first alignment layer. The second switching device includes a second liquid-crystal layer and third and fourth alignment layers. The fourth alignment layer is located between the second liquid-crystal layer and the third polarizer. A third absorption axis of the third polarizer is parallel or perpendicular to a fourth alignment direction of the fourth alignment layer.

Classes IPC  ?

• G02F 1/13 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des cristaux liquides, p. ex. cellules d'affichage individuelles à cristaux liquides
• G02F 1/1335 - Association structurelle de cellules avec des dispositifs optiques, p. ex. des polariseurs ou des réflecteurs
• G02F 1/13363 - Éléments à biréfringence, p. ex. pour la compensation optique
• G02F 1/1337 - Orientation des molécules des cristaux liquides induite par les caractéristiques de surface, p. ex. par des couches d'alignement

Abrégé

An electronically controlled viewing angle switching panel and a display device are provided. The electronically controlled viewing angle switching panel includes a viewing angle adjustment element, a first polarizer, a second polarizer and a support structure. The viewing angle adjustment element includes at least one plastic substrate. The viewing angle adjustment element is located between the first polarizer and the second polarizer. The support structure is connected to at least a part of the second polarizer. The display device includes a light source module, a display panel and the electronically controlled viewing angle switching panel.

Classes IPC  ?

• G02F 1/13 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des cristaux liquides, p. ex. cellules d'affichage individuelles à cristaux liquides
• G02F 1/1335 - Association structurelle de cellules avec des dispositifs optiques, p. ex. des polariseurs ou des réflecteurs
• G02F 1/13357 - Dispositifs d'éclairage

Abrégé

A head-mounted display includes a casing, a first display panel, a second display panel, a third display panel, a projection optical engine, a first thermally conductive material layer, a control module, and an imaging lens. The first display panel, the second display panel, the third display panel, and the control module are disposed in the casing. The imaging lens is disposed on the casing. The first display panel, the second display panel, and the third display panel are configured to emit image beam respectively. The control module is electrically connected to the first display panel, the second display panel, and the third display panel to adjust light intensity of the image beam respectively according to a brightness value of ambient light to adjust a surface temperature of the casing. A light intensity adjustment method of the head-mounted display is further disclosed.

Classes IPC  ?

• G09G 3/00 - Dispositions ou circuits de commande présentant un intérêt uniquement pour l'affichage utilisant des moyens de visualisation autres que les tubes à rayons cathodiques

Abrégé

The disclosure provides a wearable display device, including a bracket body, a bearing frame, a display module, and a transparent heat dissipation sheet. The bearing frame is connected to the bracket body and has an accommodation space. The display module is disposed in the accommodation space and has a first surface and a second surface that are opposite each other. The display module is suitable for projecting an image beam, and the image beam is projected out of the display module from one of the first surface and the second surface. The transparent heat dissipation sheet is disposed on at least one of the first surface and the second surface.

Classes IPC  ?

• G02B 27/01 - Dispositifs d'affichage "tête haute"

Abrégé

An illumination system includes a laser light source, a wavelength conversion element, a first supplementary light source and a light splitting element. The laser light source is used to provide a laser beam. The wavelength conversion element is used to convert the laser beam into a converted light beam. The first supplementary light source is used to provide a first supplementary light beam. The light splitting element meets one of the following conditions: (1) allowing the laser beam to pass through, allowing the first supplementary light beam with the first polarization state to pass through, and reflecting the converted light beam with the second polarization state; or (2) reflecting the laser beam, reflecting the first supplementary light beam having the second polarization state, and allowing the converted light beam having the first polarization state to pass through.

Classes IPC  ?

• G03B 21/20 - Boîtes à lumière
• G02B 27/10 - Systèmes divisant ou combinant des faisceaux

Abrégé

A projection device includes a shell, an illumination system, an electrical connecting element, a light valve system, and a projection lens. The illumination system is disposed in the shell and provides an illumination beam. The light valve system includes a dustproof module and a light valve module. The dustproof module includes a frame and two transparent plates. An accommodation space is formed by the frame and the two transparent plates. The light valve module includes a light valve and an electrical connecting part. The light valve and the two transparent plates are located on a transmission path of the illumination beam, and the light valve converts the illumination beam into an image beam. One end of the electrical connecting part located in the accommodation space is electrically connected to the light valve, and the other end located outside the accommodation space is detachably electrically connected to the electrical connecting element.

Classes IPC  ?

• G03B 21/16 - RefroidissementPrévention de la surchauffe
• G02B 27/00 - Systèmes ou appareils optiques non prévus dans aucun des groupes ,
• G03B 21/14 - Projecteurs ou visionneuses du type par projectionLeurs accessoires Détails

Abrégé

A display device includes a back plate, a display panel, an elastic layer, a light guide plate, a cover plate and an adhesive layer. The display panel is opposite to an installing surface of the back plate. The elastic layer is compressed between the back plate and the display panel. The light guide plate is between the elastic layer and the adhesive layer. The adhesive layer is between the light guide plate and the cover plate, and includes a main body portion and an edge reinforcing portion surrounding the main body portion and connected to the light guide plate and the cover plate. The main body portion includes a first adhesive body disposed on the light guide plate and a second adhesive body stacked on the first adhesive body and the cover plate. An adhesion of the first adhesive body is different from an adhesion of the second adhesive body.

Classes IPC  ?

• F21V 8/00 - Utilisation de guides de lumière, p. ex. dispositifs à fibres optiques, dans les dispositifs ou systèmes d'éclairage

Abrégé

A driving device and a driving method are provided. The driving device includes a driving waveform signal generator and a control element. The driving waveform signal generator is configured to provide a driving waveform signal to an optical actuator according to waveform information provided by the control element. The control element is configured to generate updated waveform information based on a synchronization signal and the position information received from the sensor. The driving waveform signal generator provides an updated driving waveform signal to the optical actuator according to the updated waveform information, so that a maximum amplitude value of the driving waveform signal in an initial period is less than or equal to a maximum amplitude value of the driving waveform signal in a stable period.

Classes IPC  ?

• G09G 3/00 - Dispositions ou circuits de commande présentant un intérêt uniquement pour l'affichage utilisant des moyens de visualisation autres que les tubes à rayons cathodiques
• G02B 26/08 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables pour commander la direction de la lumière
• G03B 21/14 - Projecteurs ou visionneuses du type par projectionLeurs accessoires Détails

Abrégé

A surface light source module includes a light guide plate, a light source component, a covering layer, and an optical adhesive layer. The light guide plate has a first surface, a second surface, and a light incident surface. The first surface has multiple microstructures. The optical adhesive layer is disposed between the light guide plate and the covering layer. Each microstructure has a symmetry plane and a first structural surface. The interface between the first structural surface and the symmetry plane has a first intersection line. The first intersection line includes a first-part line segment, a second-part line segment, and a third-part line segment. A third included angle between the third-part line segment and the first surface is 50-90 degrees. A third length of the third-part line segment is greater than or equal to 5% of the total length of the first intersection line.

Classes IPC  ?

• F21V 8/00 - Utilisation de guides de lumière, p. ex. dispositifs à fibres optiques, dans les dispositifs ou systèmes d'éclairage

Abrégé

An optical lens adapted to receive an image beam from an imaging element is provided. The optical lens includes a first lens element, a second lens element, a third lens element, and a fourth lens element with diopter arranged along an optical axis from a light incident-side to a light exit-side. The light incident surface of the first lens element is concave. The second lens element has negative diopter, and the light exit surface of the second lens element is convex. The third lens element has positive diopter, and the light incident surface of the third lens element is convex. The fourth lens element has positive diopter, and the light incident surface of the fourth lens element is concave. The image beam forms a stop on the light exit-side, and the image beam has the smallest beam cross-sectional area at the position of the stop.

Classes IPC  ?

• G02B 13/00 - Objectifs optiques spécialement conçus pour les emplois spécifiés ci-dessous
• G02B 9/60 - Objectifs optiques caractérisés à la fois par le nombre de leurs composants et la façon dont ceux-ci sont disposés selon leur signe, c.-à-d. + ou — ayant uniquement cinq composants
• G02B 27/01 - Dispositifs d'affichage "tête haute"

Abrégé

An anti-peep module and a display apparatus including a first electrically-controlled viewing angle switching device and a first polarizer are provided. The first electrically-controlled viewing angle switching device includes a first alignment layer, a second alignment layer, a first liquid crystal layer, and first spacers. The first spacers have a first refractive index greater than a first ordinary ray refractive index and less than a first extraordinary ray refractive index of the first liquid crystal layer. When an absolute difference value between the first refractive index and the first extraordinary ray refractive index is less than 0.5, a first absorption axis of the first polarizer is perpendicular to a first alignment direction of the first alignment layer. When an absolute difference value between the first refractive index and the first ordinary ray refractive index is less than 0.5, the first absorption axis is parallel to the first alignment direction.

Classes IPC  ?

• G02F 1/13 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des cristaux liquides, p. ex. cellules d'affichage individuelles à cristaux liquides
• G02B 6/293 - Moyens de couplage optique ayant des bus de données, c.-à-d. plusieurs guides d'ondes interconnectés et assurant un système bidirectionnel par nature en mélangeant et divisant les signaux avec des moyens de sélection de la longueur d'onde
• G02F 1/1337 - Orientation des molécules des cristaux liquides induite par les caractéristiques de surface, p. ex. par des couches d'alignement
• G02F 1/1339 - JointsÉléments d'espacementScellement des cellules

Abrégé

A projection device comprising an optical engine module, a lens module, a sensing module and a control module is provided. The lens module includes a first lens, a second lens and a switch module. The switch module connects the first lens and the second lens to switch the positions of the first lens and the second lens relative to the optical engine module. The sensing module includes a first sensing element. The first sensing element is configured to sense a distance between the projection device and the projection target to obtain a distance signal. The control module is configured to receive the distance signal from the first sensing element, and control the switch module according to the distance signal, so that the switch module switches one of the first lens and the second lens to the transmission path of the image beam.

Classes IPC  ?

• H04N 9/31 - Dispositifs de projection pour la présentation d'images en couleurs

Abrégé

An illumination system including an excitation light source, a wavelength conversion device, a first light splitting module, a second light splitting module, a first light homogenizing element, and a second light homogenizing element is provided. Here, the excitation light source is configured to provide a laser beam. The wavelength conversion device is configured to convert the laser beam into an excited beam or a reflected laser beam at different timing. The first light splitting module is configured to reflect a first sub-laser beam of the laser beam from the wavelength conversion device to the first light homogenizing element. The second light splitting module is configured to reflect a second sub-laser beam from the first light splitting module to the second light homogenizing element. An illumination beam includes the first sub-laser beam, the second sub-laser beam, and the excited beam.

Classes IPC  ?

• G03B 21/20 - Boîtes à lumière

Abrégé

An adjustment method of a wearable display device includes steps of providing a display light beam to a light transmitting element to form an image, sensing an intensity of an ambient light to obtain a light intensity signal, and adjusting a brightness of the display light beam and/or a transmittance of the light transmitting element according to the light intensity signal. The adjustment method maintains good display effect of the wearable display device and improve user experience.

Classes IPC  ?

• G02B 27/01 - Dispositifs d'affichage "tête haute"
• G09G 3/00 - Dispositions ou circuits de commande présentant un intérêt uniquement pour l'affichage utilisant des moyens de visualisation autres que les tubes à rayons cathodiques

Abrégé

A dust-proof structure applicable to an optical engine module of a projection device is provided. The optical engine module includes a base with a chamber, and the dust-proof structure includes a partition plate, a cavity structure, an adjustment hole, and an adjustment element. The partition plate is one part of the base and a side wall of the chamber. The cavity structure is disposed in the base, and the partition plate is located between the cavity structure and the chamber. The adjustment hole passes through the partition plate and the other part of the base and communicates with the chamber and the cavity structure. The adjustment element passes through the adjustment hole and partly corresponds to the cavity structure. The adjustment element is suitable for moving relative to the adjustment hole, such that debris generated during movement of the adjustment element is suitable for falling into the cavity structure.

Classes IPC  ?

• G03B 21/14 - Projecteurs ou visionneuses du type par projectionLeurs accessoires Détails
• G03B 21/20 - Boîtes à lumière

Abrégé

Disclosed is a lens module adaptable for a projection device. The controller is configured to: control the drive module to drive the rotary adjustment member to rotate in a first direction, so that the gravity sensor rotates with the rotary adjustment member from a starting position and stops at a first position to obtain a first rotary angle value; control the drive module to drive the rotary adjustment member to rotate in a second direction, so that the gravity sensor rotates with the rotary adjustment member from the first position and stops at a second position to obtain a second rotary angle value; and adjust a focal length of the projection lens according to the first rotary angle value and the second rotary angle value. The projection device and a focusing method of the projection device are also provided.

Classes IPC  ?

• H04N 9/31 - Dispositifs de projection pour la présentation d'images en couleurs

Abrégé

A button module includes a first electronic element, a pressing element, a second electronic element, and an operation element. The pressing element has a pressing part and a first actuation part. The pressing part has a through-hole. The pressing part moves relative to the first electronic element in a pressing direction. The pressing part drives the first actuation part to move when the pressing part moves so that the first actuation part actuates the first electronic element. The operation element has a driven part and a second actuation part. The second actuation part actuates the second electronic element. The driven part moves relative to the pressing part in an operation direction. The driven part drives the second actuation part to move when the driven part moves so that the second actuation part actuates the second electronic element. A projection device with the button module is also provided.

Classes IPC  ?

• H01H 13/14 - Organes d'actionnement, p. ex. bouton-poussoir
• G03B 21/14 - Projecteurs ou visionneuses du type par projectionLeurs accessoires Détails
• H01H 13/10 - SoclesContacts fixes montés sur les socles

Abrégé

The disclosure provides an anti-peep module and a display device. The anti-peep module includes an anisotropic diffusion film, an electrically controlled phase retarder, and a first polarizer. The anisotropic diffusion film includes a substrate, multiple first optical microstructures, and a first liquid crystal layer. The first optical microstructures are arranged along a first direction and extend in a second direction. The first liquid crystal layer directly covers the first optical microstructures. An optical axis of the first liquid crystal layer is parallel to the second direction. A difference value of a refractive index of the first optical microstructures and one of a first refractive index and a second refractive index of the first liquid crystal layer along the first direction and the second direction respectively is greater than or equal to 0.05. A first absorption axis of the first polarizer is parallel to or perpendicular to the second direction.

Classes IPC  ?

• G02F 1/13 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des cristaux liquides, p. ex. cellules d'affichage individuelles à cristaux liquides
• G02F 1/1335 - Association structurelle de cellules avec des dispositifs optiques, p. ex. des polariseurs ou des réflecteurs

Abrégé

A projection system, a projection apparatus, and a method of controlling a projection apparatus are provided. The method of controlling the projection apparatus includes: receiving schedule data through an artificial intelligence model from the projection apparatus or a terminal apparatus; generating at least one of a standard command and a personalized picture through the artificial intelligence model according to the schedule data and a rule command; executing an operation corresponding to the schedule data through the projection apparatus according to the standard command after receiving the standard command through the projection apparatus; and projecting the personalized picture through the projection apparatus after receiving the personalized picture through the projection apparatus.

Classes IPC  ?

• H04N 5/74 - Dispositifs de projection pour reproduction d'image, p. ex. eidophor
• G03B 21/26 - Projecteurs ou visionneuses du type par projectionLeurs accessoires Détails projetant séparément une image subsidiaire en même temps que l'image principale

Abrégé

A head-up display device includes a processing unit and an imaging unit. The imaging unit includes a light source module, an optical modulation module, a circuit board, and a plurality of first temperature sensors. The circuit board surrounds the optical modulation module. The plurality of first temperature sensors are disposed on the circuit board. The circuit board is electrically connected to the plurality of first temperature sensors and the optical modulation module. The processing unit is electrically connected to the light source module and the circuit board to obtain a plurality of temperatures from the plurality of first temperature sensors. When a highest temperature of the plurality of temperatures is greater than a threshold value, the processing unit is adapted to enable the light source module to reduce an intensity of the illumination light beam. A temperature control method of a head-up display device is also proposed.

Classes IPC  ?

• G02B 27/01 - Dispositifs d'affichage "tête haute"

Abrégé

A thermal module including a heat sink and a projector are provided. The heat sink includes a body and heat sink fins. The body includes a fixed plate and partition plates. The fixed plate has a first surface, a second surface and a third surface. The first surface is opposite to the second surface, and the third surface is connected to the first and second surfaces. Spaces form between the partition plates, and the heat sink fin is disposed correspondingly in each space. Each heat sink fin has a corrugated structure with multiple segments, and a fractured structure is provided on the surface of each segment. The third surface and the side surface connected to the end surfaces of the partition plates form an air guide surface, and the heat sink receives or discharges air flow with the air guide surface.

Classes IPC  ?

• G03B 21/16 - RefroidissementPrévention de la surchauffe
• H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage

Abrégé

A projection device, control method of projection device, and projection system are provided. An environment sensing module of the projection device is configured to sense a surrounding environment of the projection device to obtain sensing result. A processor of the projection device is configured to execute: determining a target theme corresponding to the surrounding environment according to the sensing result, and searching a target picture database that matches the target theme from a plurality of picture databases; selecting at least one target picture from the target picture database in response to searching out the target picture database from the plurality of picture databases; generating the at least one target picture according to the target theme in response to not searching out the target picture database from the plurality of picture databases; and enabling the projection device to project a projection image having the at least one target picture.

Classes IPC  ?

• G06F 3/14 - Sortie numérique vers un dispositif de visualisation
• G06F 16/51 - IndexationStructures de données à cet effetStructures de stockage
• G06F 16/538 - Présentation des résultats des requêtes
• G06T 11/00 - Génération d'images bidimensionnelles [2D]
• G06V 10/70 - Dispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique
• G10L 15/22 - Procédures utilisées pendant le processus de reconnaissance de la parole, p. ex. dialogue homme-machine
• G10L 25/51 - Techniques d'analyse de la parole ou de la voix qui ne se limitent pas à un seul des groupes spécialement adaptées pour un usage particulier pour comparaison ou différentiation

Abrégé

A heat dissipation module configured to dissipate heat from a rotating element rotated with a first axis as a rotation axis is provided. The heat dissipation module includes at least one first fan and a heat dissipation component. The at least one first fan includes a first fan outlet. A first airflow generated by the at least one first fan flows from the first fan outlet to the rotating element. The heat dissipation component includes an inlet duct, a plurality of inner ducts and at least one outlet duct. The plurality of inner ducts are communicated to the inlet duct and the at least one outlet duct. The inlet duct of the heat dissipation component is disposed corresponding to a rotation tangential direction of the rotating element, and the rotation tangential direction is perpendicular to the first axis. In addition, a projection device is also mentioned.

Classes IPC  ?

• G03B 21/16 - RefroidissementPrévention de la surchauffe
• G03B 21/14 - Projecteurs ou visionneuses du type par projectionLeurs accessoires Détails
• H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage

Abrégé

A head-mounted display apparatus including a casing, an optical engine module, an imaging module, a heat sink, a denoiser, a sensing module, and a control module. The casing includes a body part, from which extends a supporting part. The optical engine and imaging modules are disposed in the body part. An image projected by the optical engine module is displayed on the imaging module. The heat sink is disposed alongside the optical engine module. The sensing module is disposed in the supporting part to detect audio or/and vibration signals generated by the heat sink. The control module is electrically connected to the heat sink, denoiser and sensing module. The control module receives the audio or/and vibration signals detected by the sensing module and controls the denoiser to generate a reverse shock wave to eliminate the audio or/and vibration signals generated by the heat sink.

Classes IPC  ?

• H04N 13/398 - Leur synchronisationLeur commande
• H04N 13/344 - Affichage pour le visionnement à l’aide de lunettes spéciales ou de visiocasques avec des visiocasques portant des affichages gauche et droit
• H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage

Abrégé

A front light module includes a light-emitting element and a light-guide assembly. The light-guide assembly includes a light guide plate and a light guide element. The light guide plate has a first side surface and a first surface connected to the first side surface. The first side surface faces the light-emitting element. A ratio of a projection area of the light guide element on the first surface to an area of the first surface is greater than 0.8. The light guide plate has a first thickness, and the light guide element has a second thickness. The light-emitting element has a height in the direction. A sum of the first thickness and the second thickness is greater than or equal to the height, and a ratio of the first thickness to the height is less than or equal to 0.75 and greater than or equal to 0.5.

Classes IPC  ?

• F21V 8/00 - Utilisation de guides de lumière, p. ex. dispositifs à fibres optiques, dans les dispositifs ou systèmes d'éclairage
• G02F 1/1335 - Association structurelle de cellules avec des dispositifs optiques, p. ex. des polariseurs ou des réflecteurs
• G02F 1/13357 - Dispositifs d'éclairage

Abrégé

A display system, a display apparatus, and a control method thereof are provided. The display apparatus executes one of a first process and a second process to obtain an input image file. An artificial intelligence model is configured to generate a standard instruction according to the input image file. The display apparatus adjusts an operating setting of the display apparatus according to the standard instruction. The first process includes: obtaining a first original image file related to an environment of the display apparatus by driving an imaging apparatus, and using the first original image file as the input image file. The second process includes: capturing a multimedia content of the display apparatus by driving an image processing module to obtain a second original image file, and using the second original image file as the input image file.

Classes IPC  ?

• H04N 9/31 - Dispositifs de projection pour la présentation d'images en couleurs
• G06T 5/60 - Amélioration ou restauration d'image utilisant l’apprentissage automatique, p. ex. les réseaux neuronaux
• G06T 5/92 - Modification de la plage dynamique d'images ou de parties d'images basée sur les propriétés globales des images

Abrégé

A projection device and a projection method thereof are provided. The projection device includes an optical engine, a ranging unit, and a processor. The optical engine projects an image beam to a target area to form a first image. The ranging unit emits testing light beams, detects reflected light beams reflected from the testing light beams, and obtains effective sensing information from the reflected light beams. The processor is coupled to the ranging unit and the optical engine, receives the effective sensing information from the ranging unit, and generates first projection distance information according to the effective sensing information. The processor controls the optical engine so that the first image corresponding to the image beam is located within an effective focal length range of the projection device.

Classes IPC  ?

• H04N 9/31 - Dispositifs de projection pour la présentation d'images en couleurs
• G01S 7/481 - Caractéristiques de structure, p. ex. agencements d'éléments optiques
• G01S 17/08 - Systèmes déterminant les données relatives à la position d'une cible pour mesurer la distance uniquement

Abrégé

An illumination system provided includes a light source, a light-condensing lens, an optical element, a beam splitter, and a mirror. The light source provides a first beam. The light-condensing lens has a first-half portion and a second-half portion. The optical element is located on a transmitting path of the first beam from the first-half portion, and the optical element can generate a second beam at least passing through the second-half portion. The beam splitter is located on a transmitting path of the second beam to reflect a first part beam of the second beam, and the beam splitter can allow a second part beam of the second beam to pass therethrough. The mirror is located on a transmitting path of the second beam from the beam splitter. A projection device having the illumination system is also provided.

Classes IPC  ?

• G03B 21/20 - Boîtes à lumière

Abrégé

Disclosed is a head-up display device which includes a projection module and an image light transmission module. The projection module includes an image light source and a projection lens. The image light source is disposed to provide an image beam. The projection lens has a lateral chromatic aberration of a projection lens. The image light transmission module includes an optical waveguide element and an optical lens and has a lateral chromatic aberration of an image light transmission. The optical waveguide element is disposed on a transmission path of the image beam from the projection lens and guides the image beam to form a display beam. The lateral chromatic aberration of the projection lens is a reverse chromatic aberration. The lateral chromatic aberration of the image light transmission module is a positive chromatic aberration. The head-up display device disclosed makes the display image have good optical quality.

Classes IPC  ?

• G02B 27/01 - Dispositifs d'affichage "tête haute"

Abrégé

Disclosed are a projection device and a projection method. The projection device includes an optical engine, a distance measuring unit, and a processor. The distance measuring unit is configured to emit testing light to the target area and receive reflected light. The distance measuring unit generates multiple pieces of corresponding distance information according to the reflected lights received and multiple areas of the target area. The processor is configured to: generate area distance information according to the multiple pieces of distance information; select a mode from multiple pieces of sub-area distance information comprised by each piece of area distance information as corrected distance information corresponding to each area; and control the optical engine to project an image beam according to the corrected distance information of each area to form a projected image in the target area.

Classes IPC  ?

• H04N 9/31 - Dispositifs de projection pour la présentation d'images en couleurs
• G01S 7/48 - Détails des systèmes correspondant aux groupes , , de systèmes selon le groupe
• G01S 7/481 - Caractéristiques de structure, p. ex. agencements d'éléments optiques
• G01S 13/04 - Systèmes déterminant la présence d'une cible
• G01S 17/08 - Systèmes déterminant les données relatives à la position d'une cible pour mesurer la distance uniquement
• G01S 17/89 - Systèmes lidar, spécialement adaptés pour des applications spécifiques pour la cartographie ou l'imagerie

Abrégé

A projection device and an image processing module are provided. The image processing module is configured to receive an image signal. The image signal includes multiple sub-image signals. Each of the sub-image signals corresponds to multiple pixels. The pixels form a pixel shifting unit. The image processing module generates flicker data based on contrast in the pixel shifting unit, and generates an output image signal based on the flicker data and a first brightness signal corresponding to brightness of the image signal.

Classes IPC  ?

• G09G 3/00 - Dispositions ou circuits de commande présentant un intérêt uniquement pour l'affichage utilisant des moyens de visualisation autres que les tubes à rayons cathodiques
• G06T 5/20 - Amélioration ou restauration d'image utilisant des opérateurs locaux
• G06T 5/73 - Élimination des flousAccentuation de la netteté
• G06T 7/13 - Détection de bords
• H04N 9/31 - Dispositifs de projection pour la présentation d'images en couleurs

Abrégé

A projection system and a control method are provided. The projection system includes an image control device and a projector. The image control device stores an application and includes a first communication port. The image control device is configured to execute the application to generate a control signal. The first communication port includes at least one of a teletype serial (TTYS) interface and a universal serial bus (USB) interface. The image control device is configured to transmit the control signal to a second communication port of the projector through the first communication port, so that the projector executes a function corresponding to the control signal.

Classes IPC  ?

• H04N 9/31 - Dispositifs de projection pour la présentation d'images en couleurs

Abrégé

A projector system, including a first projector and at least one second projector, is provided. The first projector broadcasts first data to each of the at least one second projector in response to a first input operation applied to a first input/output unit. A second processor of each of the at least one second projector broadcasts corresponding second data to other projectors among multiple projectors in response to receiving the first data. Each of the projectors determines whether there is an up-to-date firmware file according to the first data and the at least one second data to transmit the up-to-date firmware file to corresponding at least one other projector among the projectors. Each of the at least one other projector receives the up-to-date firmware file to perform a firmware update.

Classes IPC  ?

• G06F 8/65 - Mises à jour
• H04L 67/00 - Dispositions ou protocoles de réseau pour la prise en charge de services ou d'applications réseau

Abrégé

A front light module provided includes a light-emitting element, a light guide plate, and a film assembly. The light guide plate has a light-incident surface and a light-exiting surface. The light-incident surface is connected to the light-exiting surface and is disposed opposite to the light-emitting element. The light-exiting surface has a plurality of microstructures. The film assembly includes a first light-penetrating adhesive layer, an optical film, and a second light-penetrating adhesive layer. The first light-penetrating adhesive layer is connected to the light-exiting surface. The optical film is disposed between the first light-penetrating adhesive layer and the second light-penetrating adhesive layer, and the first light-penetrating adhesive layer is disposed between the light guide plate and the optical film. A display device having the front light module is also provided. The front light module and the display device can improve the visibility.

Classes IPC  ?

• G02F 1/1335 - Association structurelle de cellules avec des dispositifs optiques, p. ex. des polariseurs ou des réflecteurs
• F21V 8/00 - Utilisation de guides de lumière, p. ex. dispositifs à fibres optiques, dans les dispositifs ou systèmes d'éclairage
• G02B 5/30 - Éléments polarisants
• G02F 1/13357 - Dispositifs d'éclairage

Abrégé

In a projection device and a light source system thereof, the light source system includes a light source module, a driver, and a control circuit. The light source module includes light sources to provide beams with different wavelength ranges. According to a selection signal, the control circuit selects one of a first pulse width modulation signal, a second pulse width modulation signal, and a third pulse width modulation signal as a pulse width modulation signal to output to the driver. The driver drives the light source corresponding to the selection signal with the pulse width modulation signal provided by the control circuit.

Classes IPC  ?

• H04N 9/31 - Dispositifs de projection pour la présentation d'images en couleurs
• G09G 3/00 - Dispositions ou circuits de commande présentant un intérêt uniquement pour l'affichage utilisant des moyens de visualisation autres que les tubes à rayons cathodiques

Abrégé

A projection system, a projection device, and a control method thereof are provided. The control method of the projection device includes the following steps: transmitting a first original command by a terminal device; projecting an adjustment image by the projection device in response to the first original command corresponding to an image correction operation of the projection device, wherein the adjustment image includes at least one pattern array and at least one adjustment reference point; transmitting a second original command by the terminal device; and adjusting a position of the at least one adjustment reference point of the adjustment image by the projection device in response to the second original command corresponding to adjusting the position of the at least one adjustment reference point of the adjustment image, wherein the at least one adjustment reference point is located in the corresponding at least one pattern array.

Classes IPC  ?

• H04N 9/31 - Dispositifs de projection pour la présentation d'images en couleurs
• G10L 15/26 - Systèmes de synthèse de texte à partir de la parole

Abrégé

Disclosed is a display device including a front light module, a first polarizing module, and a reflective display unit. A light guide plate is located between the first polarizing module and the reflective display unit. The front light module includes a light guide plate and a light source. The light source is disposed next to a light incident surface of the light guide plate. The first polarizing module includes a first polarizer and a first quarter wave plate, where the first quarter wave plate is located between the light guide plate and the first polarizer. There is a first air gap layer between the light guide plate and the first quarter wave plate. The display device disclosed has good optical efficiency and contrast.

Classes IPC  ?

• G02F 1/1335 - Association structurelle de cellules avec des dispositifs optiques, p. ex. des polariseurs ou des réflecteurs
• G02F 1/13363 - Éléments à biréfringence, p. ex. pour la compensation optique
• G02F 1/167 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur le mouvement de translation des particules dans un fluide sous l’influence de l’application d’un champ caractérisés par l’effet électro-optique ou magnéto-optique par électrophorèse
• G02F 1/1677 - Association structurelle des cellules avec des dispositifs optiques, p. ex. des réflecteurs ou des dispositifs d’éclairage

Abrégé

A heat dissipation module includes an airflow generator, a heat dissipation substrate connected to a heat source, a heat dissipation member, a baffle, and a heat conductive member connected to the heat dissipation substrate. The heat dissipation member includes a main body and first fins arranged around an outer periphery of the main body and forming an accommodation space with the main body. The airflow generator has a rotation axis, and is accommodated in the accommodation space and connected to the main body. The baffle is connected to the first fins and has an opening corresponded to an air inlet surface of the airflow generator. On a reference plane perpendicular to the rotation axis, at least a part of an orthographic projection of each first fin does not overlap an orthographic projection of the airflow generator, and an orthographic projection of the baffle overlaps the orthographic projections of the first fins.

Classes IPC  ?

• G03B 21/16 - RefroidissementPrévention de la surchauffe
• G03B 21/14 - Projecteurs ou visionneuses du type par projectionLeurs accessoires Détails
• G03B 21/20 - Boîtes à lumière
• H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage

Abrégé

An electrically controlled panel including a first electrically controlled device including first and second alignment layers and a first liquid-crystal layer disposed therebetween, a first polarizing layer, and a first compensation film disposed at a side of the first polarizing layer provided with the first electrically controlled device is provided. The first and second alignment layers have first and second alignment directions respectively. An included angle between the first and second alignment directions is between 75 degrees and 105 degrees. A phase retardation of the first liquid-crystal layer is between 400 nm and 600 nm or between 800 nm and 1200 nm. The first polarizing layer is disposed at a side of the first alignment layer away from the first liquid-crystal layer, and has a first absorption axis parallel to or perpendicular to the first alignment direction. A display apparatus adopting the electrically controlled panel is also provided.

Classes IPC  ?

• G02F 1/13 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des cristaux liquides, p. ex. cellules d'affichage individuelles à cristaux liquides
• G02F 1/1335 - Association structurelle de cellules avec des dispositifs optiques, p. ex. des polariseurs ou des réflecteurs
• G02F 1/13363 - Éléments à biréfringence, p. ex. pour la compensation optique
• G02F 1/1337 - Orientation des molécules des cristaux liquides induite par les caractéristiques de surface, p. ex. par des couches d'alignement

Abrégé

An electronic system and a control method thereof are provided. The electronic system includes a projection device and at least one peripheral device. The control method of the electronic system includes: sending an original instruction to a natural language model through the projection device, wherein the projection device has a communication interface and is communicatively connected to the at least one peripheral device through the communication interface; in response to the original instruction corresponding to an operation of the at least one peripheral device, generating at least one standard instruction according to the original instruction through the natural language model; and controlling the at least one peripheral device through the projection device to perform the operation corresponding to the original instruction according to the at least one standard instruction.

Classes IPC  ?

• H04N 21/41 - Structure de clientStructure de périphérique de client
• G10L 15/183 - Classement ou recherche de la parole utilisant une modélisation du langage naturel selon les contextes, p. ex. modèles de langage
• G10L 15/22 - Procédures utilisées pendant le processus de reconnaissance de la parole, p. ex. dialogue homme-machine
• G10L 15/30 - Reconnaissance distribuée, p. ex. dans les systèmes client-serveur, pour les applications en téléphonie mobile ou réseaux
• H04N 9/31 - Dispositifs de projection pour la présentation d'images en couleurs
• H04N 21/422 - Périphériques d'entrée uniquement, p. ex. système de positionnement global [GPS]

Abrégé

An illumination system includes a first light source, a second light source, a light combining module, and a wavelength conversion element. The first light source is configured to provide a first beam. The second light source is configured to provide a second beam. The light combining module is disposed on a transmission path of the first beam from the first light source and the second beam from the second light source. The wavelength conversion element includes a rotary disk, a wavelength conversion material layer, and a light splitting layer. The light splitting layer is disposed on the rotary disk. The wavelength conversion material layer is disposed between the rotary disk and the light splitting layer, and is configured to convert the first beam into an excited beam. The light splitting layer is configured to reflect the second beam and allow the first beam and the excited beam to pass through.

Classes IPC  ?

• G03B 21/20 - Boîtes à lumière
• G02B 26/00 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables

Abrégé

A projection lens includes a first and a second optical lens assembly. The first optical lens assembly is configured to transmit an image beam to the second optical lens assembly, which projects out the image beam from the projection lens. The second optical lens assembly includes a first and a second reflective element, and an optical member disposed between the first and the second reflective element and including a translucent region and a reflective region. The first reflective element is configured to reflect the image beam from the first optical lens assembly and transmit to the translucent region, which allows the image beam from the first reflective element to pass through and transmit to the second reflective element. The second reflective element is configured to reflect the image beam from the translucent region and transmit to the reflective region, which reflects the image beam from the second reflective element.

Classes IPC  ?

• G03B 21/28 - Réflecteurs dans le faisceau de projection
• G02B 13/16 - Objectifs optiques spécialement conçus pour les emplois spécifiés ci-dessous à utiliser en combinaison avec des convertisseurs ou des amplificateurs d'image

Abrégé

A light homogenizing module, including a light homogenizing element and a light shielding element, is provided. The light homogenizing element includes a light incident surface and an axis perpendicular to the light incident surface. The light shielding element is disposed on a side of the light incident surface. The light shielding element includes a first reflection portion, at least one second reflection portion, and a light entrance. The first reflection portion surrounds the light entrance. The second reflection portion has a first end portion and a second end portion opposite to each other. The first end portion is connected to the first reflection portion. The second end portion is farther away from the light homogenizing element than the first reflection portion. The light entrance exposes the light incident surface. An extension direction of the first reflection portion is parallel to the light incident surface.

Classes IPC  ?

• G03B 21/20 - Boîtes à lumière

Abrégé

A liquid cooling module is used to cool a lighting module. The liquid cooling module includes a first cooling unit, a second cooling unit, a heat dissipation component and a pipeline component. The first cooling unit includes a first communication surface and a first cooling surface. The second cooling unit includes a top surface, a second communication surface and a second cooling surface. The top surface is perpendicular to the first communication surface and opposite to the second cooling surface. The pipeline component includes a first pipeline, a second pipeline and a third pipeline. The first pipeline is connected to the heat dissipation component and the first communication surface, the second pipeline is connected to the first communication surface and the second communication surface, and the third pipeline is connected to the second communication surface and the heat dissipation component. In addition, a projection device is also mentioned.

Classes IPC  ?

• G03B 21/16 - RefroidissementPrévention de la surchauffe
• H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage

Abrégé

A head-up display (HUD) device includes a display element, a first reflective element, and a second reflective element. The display element provides an image light beam that includes a first light beam and a second light beam, where the first light beam and the second light beam exit from different positions of the display element. The first reflective element is disposed on a transmission path of the image light beam coming from the display element to reflect the image light beam. The second reflective element is disposed on a transmission path of the image light beam coming from the first reflective element to reflect the image light beam. A primary ray of the first light beam and a primary ray of the second light beam exiting from the display element form an intersection point on the first reflective element or between the display element and the first reflective element.

Classes IPC  ?

• G02B 27/01 - Dispositifs d'affichage "tête haute"

Abrégé

A head-mounted display, which includes a case body, a heat source, and a thermally conductive material layer. The heat source and the thermally conductive material layer are disposed in the case body. The heat source is connected to the case body through the thermally conductive material layer. The case body has a first surface connected to the thermally conductive material layer and an opposite second surface. The thermally conductive material layer has a third surface connected to the heat source and an opposite fourth surface. A first distance is greater than a second distance, in which the first distance is a distance from the third surface adjacent to the heat source toward the second surface, and the second distance is a distance from the third surface away from the heat source toward the second surface. In this way, the internal heat of the head-mounted display can be uniformly distributed.

Classes IPC  ?

• G02B 27/01 - Dispositifs d'affichage "tête haute"

Abrégé

A projection device includes a light source module, a display panel, a freeform-surface reflective mirror, and a projection lens. The light source module includes a light source, a first Fresnel lens element, and a second Fresnel lens element. The first Fresnel lens element and the second Fresnel lens element are parallel to each other and located between the light source and the display panel. The display panel is arranged between the light source module and the freeform-surface reflective mirror. The projection lens is configured to transmit an image beam out of the projection device, and a direction of an optical axis of the projection lens is different from a direction of a normal of the first Fresnel lens element.

Classes IPC  ?

• H04N 9/31 - Dispositifs de projection pour la présentation d'images en couleurs

Abrégé

An optical engine module configured to receive an illumination beam includes a casing, a light uniforming element, an optical lens element, an elastic member, and a light valve. The casing has an accommodating space. The light uniforming element, the optical lens element, and the elastic member are disposed in the accommodating space. The optical lens element is disposed adjacent to a light exit end of the light uniforming element. The elastic member surrounds at least part of an outer periphery of the optical lens element. The elastic member is sealingly disposed in a gap between the optical lens element and the casing to separate the accommodating space into a first chamber and a second chamber, in which the light uniforming element is positioned in the first chamber. The illumination beam passes through the light uniforming element and the optical lens element sequentially and is transmitted to the light valve.

Classes IPC  ?

• G03B 21/14 - Projecteurs ou visionneuses du type par projectionLeurs accessoires Détails
• G03B 21/20 - Boîtes à lumière

Abrégé

A projection system, a projection device and a control method thereof are provided. The control method of the projection device includes following steps: receiving a standard command; converting the standard command into an original control code through a definition module of the projection device; determining whether an original control code meets at least one necessary parameter through an allocation module of the projection device; in response to the original control code meeting at least one necessary parameter, the allocation module enabling one player of the at least one player to play one media file of the at least one media file according to the original control code; and in response to the original control code not meeting the at least one necessary parameter, the allocation module generating a supplementary control code, and the allocation module enabling one player of the at least one player to play the one media file of the at least one media file according to at least one of the original control code and the supplementary control code.

Classes IPC  ?

• H04N 21/432 - Opération de récupération de contenu d'un support de stockage local, p. ex. disque dur
• H04N 21/41 - Structure de clientStructure de périphérique de client
• H04N 21/422 - Périphériques d'entrée uniquement, p. ex. système de positionnement global [GPS]

Abrégé

A projection device and an auto-focus method of the projection device are provided. A projection distance between a projection lens of the projection device and a projection surface is detected to generate a distance detection signal. A control unit updates an expanded look-up table based on the original look-up table, the distance detection signal, an optimal motor step, and an adjustment completion time, where the optimal motor step and the adjustment completion time are obtained through a manual focus operation. An auto-focus operation is performed based on the distance detection signal and the updated expanded look-up table.

Classes IPC  ?

• G03B 21/53 - Systèmes de mise au point automatique, p. ex. pour compenser les effets thermiques
• G02B 7/28 - Systèmes pour la génération automatique de signaux de mise au point

Abrégé

An adjusting module configured to adjust a boresight of a lens module is provided. The adjusting module includes a fixed plate, a movable plate and at least one adjusting unit. The movable plate is movably connected to a first surface of the fixed plate. The movable plate is suitable for disposing the lens module. A light-emitting surface of the lens module is on a same side as the first surface, and a light incident surface of the lens module is on a same side as a second surface. Each of the adjusting unit includes a driving member and a driven member. The driving member is pivotally disposed on the fixed plate along a first axis and linked to the driven member. The driven member is movably connected to the fixed plate and the movable plate along a second axis. The first axis is perpendicular to the second axis. When the driving member rotates while taking the first axis as a rotating axis, the driving member drives the driven member to move the movable plate along the second axis. A projector is also provided.

Classes IPC  ?

• G03B 21/14 - Projecteurs ou visionneuses du type par projectionLeurs accessoires Détails

Abrégé

A wearable projection device includes a body, an optical engine module, a heat-dissipation component, and a control module. The body has an air inlet, and a containing space connected to the air inlet. The optical engine module is disposed in the containing space. The heat-dissipation component disposed in the containing space is configured to dissipate heat from the optical engine module. The heat-dissipation component includes a vapor chamber and an airflow generator. The vapor chamber is connected to the optical engine module. The airflow generator is positioned on the vapor chamber, and the airflow generator includes a piezoelectric thin film. The control module is disposed on the body, electrically connected to the optical engine module and the airflow generator, and configured to drive the piezoelectric thin film to vibrate, so that an external cooling airflow enters the containing space through the air inlet to cool the vapor chamber.

Classes IPC  ?

• G02B 27/01 - Dispositifs d'affichage "tête haute"
• G03B 21/14 - Projecteurs ou visionneuses du type par projectionLeurs accessoires Détails
• G03B 21/16 - RefroidissementPrévention de la surchauffe

Abrégé

An optical engine module includes a cover, a light valve module, and a thermal glue. The cover has at least one filling hole, and includes a cover part having an opening, and support parts and connection parts vertically connected to the cover part. The light valve module includes a base disposed on the support parts, and a light valve element having a light emitting surface and a peripheral surface connected thereto. The light emitting surface corresponds to the opening and is spaced apart from the cover part. The connection parts surround the peripheral surface. The filling hole communicates with a space between the peripheral surface and the cover. The thermal glue is disposed between the light valve module and the cover, and connects the base, the peripheral surface, the cover part, the connection parts, and the support parts. A projection device includes the optical engine module, which achieves favorable heat dissipation efficiency.

Classes IPC  ?

• G03B 21/14 - Projecteurs ou visionneuses du type par projectionLeurs accessoires Détails
• G02B 27/00 - Systèmes ou appareils optiques non prévus dans aucun des groupes ,
• G03B 21/20 - Boîtes à lumière

Abrégé

An optical film set is disclosed. The optical film set including an optical film. The optical film includes a base and multiple light-guiding structures. The base has a light entrance surface and a light exit surface opposite to each other. The light-guiding structures are disposed on the light entrance surface of the base. Each of the light-guiding structures has two light-guiding surfaces opposite to each other. An included angle is between the each of the two light-guiding surfaces and a normal of the light entrance surface, and an angle range of the included angle is larger than 0 degrees and less than 25 degrees. A display device having the optical film set is also disclosed.

Classes IPC  ?

• G02F 1/1333 - Dispositions relatives à la structure
• G02F 1/1335 - Association structurelle de cellules avec des dispositifs optiques, p. ex. des polariseurs ou des réflecteurs

Abrégé

A wavelength conversion element is adapted to rotate around a rotation axis. The wavelength conversion element includes a rotating member and a wavelength conversion material. The wavelength conversion material is arranged on the rotating member. The wavelength conversion material is configured to convert a laser beam into a conversion beam. The rotating member is configured to drive the wavelength conversion material to rotate around the rotation axis. The wavelength conversion element has a light-transmitting area. The light-transmitting area is surrounded by the rotating member. The light-transmitting area is configured to allow at least one of the laser beam and the conversion beam to pass through.

Classes IPC  ?

• G03B 21/20 - Boîtes à lumière
• G02B 26/00 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables

Abrégé

A wavelength conversion device includes a wavelength conversion element, at least one condenser lens, at least one fixing device, a heat dissipation wind flow device, and a wind guide structure. The wavelength conversion element includes a substrate, a wavelength conversion layer, and a driving component. The substrate has a first surface and a second surface opposite to each other. The wavelength conversion layer is disposed on the first surface, and the driving component drives the substrate to rotate about a rotary shaft of the driving component as a central axis. The condenser lens is arranged on one side of the first surface of the wavelength conversion element and fixed to the fixing device. The fixing device has at least one vent. The wind guide structure is connected to the heat dissipation wind flow device and the vent.

Classes IPC  ?

• G03B 21/20 - Boîtes à lumière
• G03B 21/16 - RefroidissementPrévention de la surchauffe

Abrégé

An actuating apparatus configured to allow an image light beam to pass through. The actuating apparatus includes a frame body, an optical element, a light-transmitting element, and a drive assembly. The frame body includes a first frame portion, a second frame portion, and a shaft portion. The first frame portion is connected to the second frame portion through the shaft portion. A through hole of the second frame has a first opening and a second opening. The optical element is disposed on the first frame portion and located in the first opening. The light-transmitting element is disposed on the second frame portion, and is located in the second opening to seal the second opening. The image light beam sequentially passes through the optical element and the light-transmitting element. The drive assembly is disposed on the frame body and drives the first frame portion to rotate with the shaft portion.

Classes IPC  ?

• G02B 27/00 - Systèmes ou appareils optiques non prévus dans aucun des groupes ,
• B08B 7/02 - Nettoyage par des procédés non prévus dans une seule autre sous-classe ou un seul groupe de la présente sous-classe par distorsion, battage ou vibration de la surface à nettoyer
• G03B 21/14 - Projecteurs ou visionneuses du type par projectionLeurs accessoires Détails

Abrégé

A display device including a display module and an illuminating module is disclosed. The illuminating module is disposed on a display surface of the display module, and includes a light source, a light guide plate, and an optical film. The optical film is disposed between the display module and the light guide plate, and includes a basal layer and a microstructure layer. The microstructure layer is disposed between a surface of the basal layer and the light guide plate, and includes multiple microstructures. Each microstructure includes a first surface and a second surface. A first angle is between the first surface and a datum plane. A second angle is between the second surface and the datum plane. The first angle and the second angle are greater than or equal to 40 degrees and less than or equal to 90 degrees.

Classes IPC  ?

• G02F 1/1335 - Association structurelle de cellules avec des dispositifs optiques, p. ex. des polariseurs ou des réflecteurs
• F21V 8/00 - Utilisation de guides de lumière, p. ex. dispositifs à fibres optiques, dans les dispositifs ou systèmes d'éclairage
• G02F 1/13357 - Dispositifs d'éclairage

Abrégé

The disclosure provides a projection system, a terminal device, a projection device, and a control method thereof. The control method includes the following steps: sending an original instruction to a cloud server through the terminal device; inputting the original instruction into a natural language model through the cloud server; in response to the original instruction corresponding to the operation of the projection device, generating a standard instruction according to the original instruction through the natural language model and receiving the standard instruction through the cloud server to control the projection device according to the standard instruction; and in response to the original instruction not corresponding to the operation of the projection device, generating feedback information according to the original instruction through the natural language model and sending the feedback information to at least one of the terminal device and the projection device through the cloud server.

Classes IPC  ?

• G06F 3/16 - Entrée acoustiqueSortie acoustique
• G09G 3/00 - Dispositions ou circuits de commande présentant un intérêt uniquement pour l'affichage utilisant des moyens de visualisation autres que les tubes à rayons cathodiques
• G10L 15/183 - Classement ou recherche de la parole utilisant une modélisation du langage naturel selon les contextes, p. ex. modèles de langage
• G10L 15/22 - Procédures utilisées pendant le processus de reconnaissance de la parole, p. ex. dialogue homme-machine
• G10L 15/30 - Reconnaissance distribuée, p. ex. dans les systèmes client-serveur, pour les applications en téléphonie mobile ou réseaux

Abrégé

An electronic device, projection system, and projection method are provided. The electronic device is communicatively coupled to the projection device. The electronic device includes a camera, a memory and a processor. The memory stores an application. The processor is coupled to the camera and the memory. The processor is configured to execute the following steps of the application: controlling the projection device to project a marked image having a plurality of predetermined marks to a target area; controlling the camera to take a first image of the target area, wherein the first image comprises a foreground object and a background object of the target area; analyzing the first image, to obtain a foreground contour corresponding to the foreground object; and overlaying a selected pattern onto the foreground contour to generate a second image, and controlling the projection device to project the second image to the target area.

Classes IPC  ?

• H04N 9/31 - Dispositifs de projection pour la présentation d'images en couleurs
• G06T 7/11 - Découpage basé sur les zones
• G06T 7/194 - DécoupageDétection de bords impliquant une segmentation premier plan-arrière-plan
• G06T 7/564 - Récupération de la profondeur ou de la forme à partir de plusieurs images à partir des contours
• G06T 7/73 - Détermination de la position ou de l'orientation des objets ou des caméras utilisant des procédés basés sur les caractéristiques

Abrégé

An illumination system including a light source module, a plurality of optical elements and a wavelength conversion element is provided. The optical elements include a light-splitting element and at least one lens, which is located between the light-splitting element and the wavelength conversion element. At least one of the optical elements includes a body and a light-absorbing structure. When the laser beam is incident to the body, a light spot is formed on the body, and a region where the light spot is located is defined as a first region. The first region is located at one side of a central axis of the body. Another side of the central axis of the body has a second region, wherein the light-absorbing structure is distributed on at least a part of an edge of the body, and the at least a part is adjacent to the second region.

Classes IPC  ?

• G03B 21/20 - Boîtes à lumière
• G02B 26/00 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables

Abrégé

An illumination system is configured to provide an illumination beam. The illumination system includes an excitation light source, a wavelength conversion element, first and second light splitting elements, and first and second light homogenizing elements. The excitation light source is configured to provide a laser beam. The wavelength conversion element sequentially converts the laser beam into at least one excited beam and reflects the laser beam or allows the laser beam to pass through. The first light splitting element is configured to allow the laser beam to pass through to generate a first color beam and allow at least another portion of the at least one excited beam to pass through. The second light splitting element is configured to allow the laser beam to pass through to generate a second color beam. The first and second light homogenizing elements are disposed on transmission paths of the first and second color beams respectively. The illumination beam includes the first color beam, the second color beam, and the laser beam. The illumination system includes only a single rotating wheel.

Classes IPC  ?

• G03B 21/20 - Boîtes à lumière

Abrégé

A wavelength conversion element includes a substrate and a wavelength conversion material, wherein the wavelength conversion material is disposed on the substrate, and the wavelength conversion material is configured to convert an excitation beam into a conversion beam. The wavelength conversion material includes a fluorescent glass and a second fluorescent material. The fluorescent glass includes a glass material and a first fluorescent material. The fluorescent glass covers the second fluorescent material, and the first fluorescent material and the second fluorescent material are different.

Classes IPC  ?

• G03B 21/20 - Boîtes à lumière
• C03C 4/12 - Compositions pour verres ayant des propriétés particulières pour verre luminescentCompositions pour verres ayant des propriétés particulières pour verre fluorescent
• C03C 14/00 - Compositions de verre contenant un constituant non vitreux, p. ex. compositions contenant des fibres, filaments, trichites, paillettes ou similaires, dispersés dans une matrice de verre
• G03B 33/12 - Enregistrement ou projection simultanés faisant usage de systèmes à division des rayons ou à combinaison des rayons, p. ex. de miroirs dichroïques

Abrégé

Disclosed is a viewing angle control film including a transparent substrate and a plurality of first optical microstructures. The first optical microstructures are disposed on a surface of the transparent substrate, and a disposed range thereof has a geometric center. Each of the first optical microstructures has a first refracting surface away from the geometric center. First refracting angles included between the respective first refracting surfaces of the first optical microstructures and the surface of the transparent substrate are asymmetrically distributed with respect to the geometric center. A display apparatus adopting the viewing angle control film is also provided.

Classes IPC  ?

• G02B 5/00 - Éléments optiques autres que les lentilles
• G02F 1/13 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des cristaux liquides, p. ex. cellules d'affichage individuelles à cristaux liquides

Abrégé

A case structure, adapted for a projection device, includes an enclosure, a base and a cover plate. The enclosure has an opening. The base is located at the opening and has a receiving groove. The cover plate slides relative to the base to move to a closed position. The cover plate includes a first engaging portion on a first cover plate side, a first positioning portion on a second cover plate side, multiple elastic members and multiple slide groove structures on a third cover plate side and a fourth cover plate side. The slide groove structures are located between the elastic members and the first positioning portion in the first direction. The base includes a second engaging portion on a first base side, a second positioning portion on a second base side, multiple pillars and multiple sliders on a third base side and a fourth base side.

Classes IPC  ?

• G03B 21/14 - Projecteurs ou visionneuses du type par projectionLeurs accessoires Détails

Abrégé

A projection device includes a light source module, an optical engine module, a projection lens, a housing, and at least one first heat dissipating element. The housing comprises a first end and a second end opposite to each other. The at least one first heat dissipating element is disposed in the housing, and each of the at least one first heat dissipating element includes a first plate portion, a second plate portion, and a first fin portion. The first plate portion is connected to the light source module. The second plate portion is connected to the first plate portion. The first fin portion is connected to the second plate portion and includes a plurality of first fins arranged at intervals. These first fins are arranged between the first end and the second end.

Classes IPC  ?

• H04N 9/31 - Dispositifs de projection pour la présentation d'images en couleurs
• G03B 21/14 - Projecteurs ou visionneuses du type par projectionLeurs accessoires Détails
• G03B 21/16 - RefroidissementPrévention de la surchauffe
• H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage

Abrégé

The focusing module suitable for a lens module includes a focusing ring having a first maximum rotation stroke and being suitable for rotation to adjust the focal length of the lens module. The focusing module connected to the focusing ring includes a bracket, a drive unit disposed on the bracket, a relay gear connected to the drive unit, a first structure formed on the bracket, and a second structure formed on the relay gear. The focusing ring is connected to the relay gear, and the drive unit is configured to drive the relay gear to rotate to drive the focusing ring to rotate. When the relay gear rotates relatively to the bracket, the first structure and the second structure are suitable for stopping each other to limit rotation of the relay gear, so that the relay gear has a second maximum rotation stroke smaller than the first maximum rotation stroke.

Classes IPC  ?

• G03B 21/14 - Projecteurs ou visionneuses du type par projectionLeurs accessoires Détails
• G02B 7/08 - Montures, moyens de réglage ou raccords étanches à la lumière pour éléments optiques pour lentilles avec mécanisme de mise au point ou pour faire varier le grossissement adaptés pour fonctionner en combinaison avec un mécanisme de télécommande

Abrégé

Disclosed are an image generating device and a communication circuit thereof. The communication circuit includes a first pull-up resistor, an unidirectional current component, a signal isolation component and a signal switch. The first pull-up resistor receives a standby voltage. The unidirectional current component is coupled between the first pull-up resistor and a (CEC) pin. The signal isolation component is coupled to a path between the pin CEC and the signal switch, where a first end of the signal isolation component is controlled by the standby voltage. The signal switch is coupled to a second end of the signal isolation component, and the signal switch couples the second end of the signal isolation component to a second pull-up resistor of a processor or the signal switch couples the second end of the signal isolation component to a third pull-up resistor of a port according to a system voltage.

Classes IPC  ?

• G06F 3/14 - Sortie numérique vers un dispositif de visualisation
• G09G 5/00 - Dispositions ou circuits de commande de l'affichage communs à l'affichage utilisant des tubes à rayons cathodiques et à l'affichage utilisant d'autres moyens de visualisation

Abrégé

An optical film includes a grid layer having a first surface, a second surface, light-shading portions, and light-transmitting portions. The light-shading portions and the light-transmitting portions are located between the first surface and the second surface, and the light-shading portions and the light-transmitting portions are alternately arranged along the first surface. Each light-shading portion has a third surface, a fourth surface, a fifth surface, a sixth surface, and a seventh surface. An angle between the fourth and third surfaces is A1, an angle between the fifth and third surfaces is A2, an angle between the sixth and second surfaces is A3, and an angle between the seventh and second surfaces is A4. Wherein 85°

Classes IPC  ?

• F21V 8/00 - Utilisation de guides de lumière, p. ex. dispositifs à fibres optiques, dans les dispositifs ou systèmes d'éclairage
• G02B 5/02 - DiffuseursÉléments afocaux

Abrégé

A projection device and a driving method of the projection device are provided. The projection device includes a signal processing circuit, a driving circuit, a light-emitting module, and a discharge circuit. The signal processing circuit is configured to provide a modulation signal and a first signal. The driving circuit is coupled to the signal processing circuit and a driving node. The driving circuit is configured to generate a driving signal to the driving node according to the modulation signal. The light-emitting module is coupled to the driving circuit through the driving node. The light-emitting module is configured to receive the driving signal from the driving node to accordingly emit a laser beam. The discharge circuit is coupled to the signal processing circuit and the driving node. The discharge circuit is configured to provide a reference voltage to the driving node according to the first signal.

Classes IPC  ?

• G09G 3/00 - Dispositions ou circuits de commande présentant un intérêt uniquement pour l'affichage utilisant des moyens de visualisation autres que les tubes à rayons cathodiques

Abrégé

A wavelength conversion module including a substrate, a wavelength conversion layer and a diffuse reflection layer is provided. The wavelength conversion layer is disposed on the substrate, and the diffuse reflection layer is disposed between the substrate and the wavelength conversion layer. The diffuse reflection layer includes a plurality of first diffuse reflection particles and a plurality of second diffuse reflection particles, wherein a volume of each second diffuse reflection particle is 0.3% to 7% of an average volume of the first diffuse reflection particles, and a whiteness of the second diffuse reflection particles is greater than or equal to a whiteness of the first diffuse reflection particles. A projection apparatus is also provided.

Classes IPC  ?

• G03B 21/20 - Boîtes à lumière

Abrégé

A color wheel module and a projection device. The color wheel module includes a driving element, a first rotating member, a second rotating member and an annular optical member. The first rotating member includes a first reflective area, a second reflective area and a wavelength conversion material. The second reflective area is connected to the first reflective area, and the first reflective area is inclined to the second reflective area. The wavelength conversion material is disposed on the first reflective area. The second rotating member is connected to the first reflective area. The annular optical member is disposed between the first rotating member and the second rotating member to form an optical cavity with the first rotating member and the second rotating member, one of the second rotating member and the annular optical member includes a dichroic layer, and the other includes a filter area and a transmission area.

Classes IPC  ?

• G03B 21/20 - Boîtes à lumière
• G02B 26/00 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables

Abrégé

A wavelength conversion module includes a wavelength conversion unit, a support bracket, a lens holder, a condenser lens, and a thermally conductive material. The wavelength conversion unit is disposed on the support bracket. The lens holder is disposed on the support bracket, and has an accommodation space to accommodate the condenser lens. An inner wall of the lens holder is arranged with a bearing surface. The condenser lens has an annular assembly surface. The condenser lens is disposed on the bearing surface through the annular assembly surface to be fixed to the lens holder. The thermally conductive material is disposed between the annular assembly surface of the condenser lens and the bearing surface of the lens holder to transfer heat from the condenser lens to the lens holder.

Classes IPC  ?

• G03B 21/20 - Boîtes à lumière
• G02B 26/00 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables

Abrégé

A temperature control module and a temperature control method, which are suitable for a projector. A thermal sensor is disposed on the projector and suitable for sensing the ambient temperature to generate an ambient temperature sensing signal. A cooling device is disposed on the projector and suitable for cooling a target element of the projector. When the projector is in a brightness adjustment mode, a control circuit generates a control signal to the cooling device according to the ambient temperature sensing signal from the thermal sensor and the brightness setting signal of the projector. The cooling device adjusts the temperature regulation operation performed on the target element according to the control signal.

Classes IPC  ?

• H04N 9/31 - Dispositifs de projection pour la présentation d'images en couleurs

Abrégé

A backlight module includes a light guide plate, a light source, an optical film, and first and second prism sheets. The light source and the optical film are respectively located on a light incident surface and a light exit surface of the light guide plate. The optical film includes a substrate and optical microstructures including first and second inclined surfaces and having an extending direction parallel to the light incident surface. There are respectively first and second base angles between the first and second inclined surfaces and a surface of the substrate. An angle range of the first and second base angles is 50 to 70 degrees. The first and second prism sheets t each have prism structures. An angle range of an included angle between extending directions of the optical microstructures and the prism structures is 85 to 95 degrees. A display device having the backlight module is proposed.

Classes IPC  ?

• F21V 8/00 - Utilisation de guides de lumière, p. ex. dispositifs à fibres optiques, dans les dispositifs ou systèmes d'éclairage
• G02F 1/13357 - Dispositifs d'éclairage

Abrégé

A vehicle display device includes a light source module, a light splitting element, first and second polarization reflection modules. The light source module provides a first light beam having a first polarization state and a second light beam having a second polarization state. The light splitting element reflects the first light beam and allows the second light beam to pass through. The first polarization reflection module reflects the first light beam to the light splitting element and converts the first polarization state into the second polarization state. The second polarization reflection module reflects the first and second light beam and convert the second polarization states into third polarization states. The first and second light beam from the second polarization reflection module form a far-field virtual image and a near-field virtual image through the imaging element.

Classes IPC  ?

• G02B 27/01 - Dispositifs d'affichage "tête haute"
• B60K 35/231 - Dispositifs d'affichage "tête haute" [HUD] caractérisés par leur agencement ou leur structure pour l'intégration dans des véhicules
• G02B 27/28 - Systèmes ou appareils optiques non prévus dans aucun des groupes , pour polariser

Abrégé

A wearable display device, including an optical waveguide element and a projection device, is provided. The projection device includes an optical engine main body, a light emitting unit, an optical combiner, a projection lens, and a connection assembly. The light emitting unit is connected to the optical engine main body and configured to emit an illumination beam. The optical combiner is disposed in the optical engine main body, located on a transmission path of the illumination beam, and configured to guide the illumination beam to form an image beam. The projection lens is connected to the optical engine main body, located on a transmission path of the image beam, and configured to project the image beam. The connection assembly includes a flexible circuit board and a system connector. The light emitting unit is connected to the flexible circuit board and electrically connected to the system connector.

Classes IPC  ?

• G02B 27/01 - Dispositifs d'affichage "tête haute"
• F21V 8/00 - Utilisation de guides de lumière, p. ex. dispositifs à fibres optiques, dans les dispositifs ou systèmes d'éclairage
• G02B 6/42 - Couplage de guides de lumière avec des éléments opto-électroniques
• G02B 27/09 - Mise en forme du faisceau, p. ex. changement de la section transversale, non prévue ailleurs
• G02B 27/10 - Systèmes divisant ou combinant des faisceaux
• G02B 27/18 - Systèmes ou appareils optiques non prévus dans aucun des groupes , pour projection optique, p. ex. combinaison de miroir, de condensateur et d'objectif

Abrégé

A projection apparatus, an illumination apparatus thereof, and a light source driving method thereof are provided. A control module converts a bit control signal into first light source timing signals, converts the first light source timing signals into second light source timing signals according to a lookup table, generates a driving current corresponding to each light source according to the lookup table, outputs second light source driving signals corresponding to the light sources according to the second light source timing signals. The lookup table includes a driving current ratio corresponding to the light sources. A driving module drives the light sources according to the second light source driving signals and the driving current for the light sources to have overlapping light-emitting timings.

Classes IPC  ?

• H04N 9/31 - Dispositifs de projection pour la présentation d'images en couleurs

Abrégé

A display panel including a substrate, a light emitting structure layer, a C-plate, and a first bandpass polarizing reflective layer is provided. The light emitting structure layer is disposed on the substrate and includes first light emitting structures. The first light emitting structures have a first peak emission wavelength. The C-plate is disposed on a side of the light emitting structure layer away from the substrate. The first bandpass polarizing reflective layer is disposed between the light emitting structure layer and the C-plate and overlapped with the light emitting structure layer. A reflectance of the first bandpass polarizing reflective layer for light with a wavelength in a first wavelength range is greater than 20%. The first wavelength range is the first peak emission wavelength±20 nm.

Classes IPC  ?

• G02F 1/1335 - Association structurelle de cellules avec des dispositifs optiques, p. ex. des polariseurs ou des réflecteurs
• G02F 1/13363 - Éléments à biréfringence, p. ex. pour la compensation optique
• G02F 1/137 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des cristaux liquides, p. ex. cellules d'affichage individuelles à cristaux liquides caractérisés par l'effet électro-optique ou magnéto-optique, p. ex. transition de phase induite par un champ, effet d'orientation, interaction entre milieu récepteur et matière additive ou diffusion dynamique
• H01L 25/075 - Ensembles consistant en une pluralité de dispositifs à semi-conducteurs ou d'autres dispositifs à l'état solide les dispositifs étant tous d'un type prévu dans une seule des sous-classes , , , , ou , p. ex. ensembles de diodes redresseuses les dispositifs n'ayant pas de conteneurs séparés les dispositifs étant d'un type prévu dans le groupe
• H01L 33/60 - DISPOSITIFS À SEMI-CONDUCTEURS NON COUVERTS PAR LA CLASSE - Détails caractérisés par les éléments du boîtier des corps semi-conducteurs Éléments de mise en forme du champ optique Éléments réfléchissants

Abrégé

A backlight module, including a light guide element, a light source, and first and second optical elements, is provided. The first optical element is disposed on a side of a light exit surface of the light guide element. The first optical element includes first prism structures, each including a first base angle and a second base angle away from the light incident surface relative to the first base angle. The first base angle is different from the second base angle. The second optical element is disposed on a side of the light exit surface. The first optical element is located between the light guide element and the second optical element. The second optical element includes second prism structures, each including a third base angle and a fourth base angle away from the light incident surface relative to the third base angle. A display device is also provided.

Classes IPC  ?

• F21V 8/00 - Utilisation de guides de lumière, p. ex. dispositifs à fibres optiques, dans les dispositifs ou systèmes d'éclairage

Abrégé

A light guide element includes first and second surfaces, a light-incident surface, and microstructure groups arranged on the first surface. Each microstructure group includes a first microstructure and a second microstructure separated from and being mirror image structures of each other. A first intersection line is provided between a first light-receiving surface of the first microstructure and the first surface. A first distance is provided between the first intersection line and a light-incident intersection line in a first direction. A second intersection line is provided between a second light-receiving surface of the second microstructure and the first surface. A second distance is provided between the second intersection line and the light-incident intersection line in the first direction. A variation trend of the first distance in a second direction is opposite to a variation trend of the second distance in the second direction.

Classes IPC  ?

• F21V 8/00 - Utilisation de guides de lumière, p. ex. dispositifs à fibres optiques, dans les dispositifs ou systèmes d'éclairage