Plural Patents (Class 362/613)
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Patent number: 12261259Abstract: A light-emitting chip and a light-emitting substrate are provided. The light-emitting chip includes a base substrate and at least two sub-light-emitting chips disposed on a side of the base substrate, wherein each sub-light-emitting chip includes a first semiconductor layer, a second semiconductor layer and an light-emitting layer located between the first semiconductor layer and the second semiconductor layer which are stacked.Type: GrantFiled: September 22, 2021Date of Patent: March 25, 2025Assignees: BOE MLED Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Linxia Qi, Junjie Ma, Yuanda Lu, Shanwei Yang, Jiawei Zhao, Zhijun Xiong, Haiwei Sun, Lingyun Shi, Jinpeng Li
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Patent number: 12253693Abstract: The present disclosure provide a display device including a light source, a light transmitting layer including a plurality of micro-lens structures, and a light splitting layer including at least one liquid crystal grating layer and a prism layer. At a first period, light exiting from the first prism surface formed by transmitting a part of the parallel light through the liquid crystal grating layer has a first exit angle. At another period, light exiting from the first prism surface formed by transmitting another part of the parallel light has a second exit angle. A first image is formed in a direction of the first exit angle at a first period, a second image is formed in a direction of the second exit angle at a second period, and the first image and the second image are spliced to form a stereoscopic display image under a larger viewing angle.Type: GrantFiled: March 28, 2023Date of Patent: March 18, 2025Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventors: Song Fang, Jing Zhang, Haibing Shao
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Patent number: 12242152Abstract: A display module includes a display panel, a middle frame, a film assembly, a backlight source and a backplane. The middle frame includes sub-frames each including a body and a support portion. The backplane includes a substrate and flanges. The sub-frames include at least one first sub-frame. The body of the first sub-frame is provided with a protrusion and the protrusion abuts against a corresponding flange. In the thickness direction of the flange, the orthographic projection of the protrusion on the substrate does not completely cover the orthographic projection of the corresponding flange on the substrate. The backlight source and the film assembly are sequentially arranged on the substrate, and the film assembly is located between the support portions and the flanges; and in the thickness direction of the flanges, an expansion gap is reserved between the protrusions and the film assembly.Type: GrantFiled: September 1, 2021Date of Patent: March 4, 2025Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Qiang Zhang, Haifeng Xu, Hui Dong
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Patent number: 12228817Abstract: A display device and a control method therefor are disclosed. The display device includes: a first backlight module; a second backlight module located at a light emergent side of the first backlight module; and a display panel located at a side of the second backlight module facing away from the first backlight module; where the first backlight module includes a first light board, and the first light board emits light to a side of the second backlight module; the second backlight module includes at least one second light board, second light boards of the at least one second light board are stacked, and the second light boards transmit the light emitted by the first backlight module and emit light to the display panel; the first light board includes a plurality of first light sources, each second light board of the second light boards includes a plurality of second light sources.Type: GrantFiled: April 29, 2022Date of Patent: February 18, 2025Assignees: Fuzhou BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Ming Chen, Nani Liu, Kai Diao, Han Zhang, Long Hu, Hongyu Zhao, Siyu Wu, Jingran Niu, Jiwei Sun, Yuhang Lin, Dingjie Zheng
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Patent number: 12197092Abstract: A light emitting substrate is provided. The light emitting substrate includes a plurality of driver chip sets, a plurality of ground traces, and one or more connection lines. At least one driver chip set includes a plurality of driver chip subsets, at least one driver chip subset includes a plurality of driver chips that are cascaded, and driver chip subsets in a same driver chip set are cascaded. Driver chips in a same driver chip subset are electrically connected to a same ground trace, and different driver chip subsets are respectively connected to different ground traces. Ground traces respectively connected to the driver chip subsets in the same driver chip set are electrically connected by at least one connection line.Type: GrantFiled: February 23, 2022Date of Patent: January 14, 2025Assignees: HEFEI BOE RUISHENG TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Yajun Ma, Zhi Zhang, Li Yin, Zhenzhong Fang, Penghua Wang
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Patent number: 12176383Abstract: A display device and a splice display device are provided by the present application. The display device of the present application includes a main-display region and a sub-display region surrounding the main-display region. The display device includes a display panel including a main-pixel region positioned in the main-display region and a sub-pixel region positioned in the sub-display region. An optical element disposed on the display panel and covering the sub-display region.Type: GrantFiled: December 20, 2021Date of Patent: December 24, 2024Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Guochuan Huang
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Patent number: 12148398Abstract: The present disclosure provides a brightness regulating method. The brightness regulating method is applied to a displaying device. The displaying device includes a backlight module. The regulating method includes: dividing a backlight source of the backlight module into a plurality of light areas; acquiring pixel quantities and pixel grayscale values of pixels within pixel areas corresponding to each of the light areas; according to the pixel quantities and the pixel grayscale values, determining brightness parameters of the light areas; and according to the brightness parameters, regulating brightnesses of the light area. Because, in the process of the brightness regulation, each of the light areas corresponds to one brightness parameter, the light areas can be individually regulated according to the severity degrees of the halo phenomenon in the different areas, whereby, while alleviating the halo phenomenon, the brightness regulation has a better pertinence and a better effect.Type: GrantFiled: September 29, 2021Date of Patent: November 19, 2024Assignees: CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jin Sha, Hao Sun, Bo Xu, Meilong Hu, Zhi Zhang, Wencheng Luo, Qiang Chen, Yang Chen
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Patent number: 12121166Abstract: A digital photo frame, comprising a display monitor (10), a frame body (20), and a back cover (30), wherein the display monitor (10) is arranged at the front surface of the frame body (20), and the back cover (30) is arranged at the rear surface of the frame body (20), wherein the digital photo frame also comprises an ambient light strip (40), wherein the ambient light strip (40) is disposed around the frame body (20), and corresponding to the ambient light strip (40), a translucent cover strip (50) is arranged on the frame body (20), and correspondingly the light emitted by the ambient light strip (40) is projected outward through the translucent strip (50).Type: GrantFiled: April 8, 2024Date of Patent: October 22, 2024Assignee: SHENZHEN ELECTRON TECHNOLOGY CO., LTD.Inventors: Cheng Zhuang, Yonghong Li
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Patent number: 12111490Abstract: An illumination device includes a plurality of light sources arranged in a row, a light guide plate having a plate shape and including a first end face at an outer peripheral end face of the light guide plate and a first main surface included in a pair of main surfaces of the light guide plate, the first end face facing the plurality of light sources and being configured to receive incident light, the first main surface being configured to emit light, and a plurality of first lenses disposed at the first main surface, arranged along a first direction, and extending along a second direction, the first direction being an arrangement direction of the plurality of light sources, the second direction intersecting the first direction and extending along the first main surface.Type: GrantFiled: June 23, 2023Date of Patent: October 8, 2024Assignee: Sharp Display Technology CorporationInventors: Yuuichi Kanbayashi, Shugo Yagi, Junichi Masuda, Satoshi Tsubooka
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Patent number: 12107541Abstract: A photovoltaic power generation system includes a plurality of photovoltaic modules, a plurality of optimizers, and an inverter. Each optimizer is connected to at least one photovoltaic module, and output ends of the plurality of optimizers are connected in series to form a string and then connected to the inverter. The optimizer includes a conversion unit, and a control unit configured to control the conversion unit. The optimizer further includes an auxiliary power source, an energy storage unit, and a first unidirectional conduction unit that are connected between the conversion unit and the control unit. The control unit is configured to perform IV curve scanning for each voltage segment, where the voltage segments are obtained by segmenting a range of an output voltage of a photovoltaic module corresponding to the optimizer from an open-circuit voltage to a preset minimum voltage, and at least two voltage segments are obtained through division.Type: GrantFiled: August 17, 2021Date of Patent: October 1, 2024Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Dong Chen, Lei Shi, Zhaohui Wang
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Patent number: 12099229Abstract: According to an aspect of the disclosure, an illumination device includes: a first light source; a first light guide plate including at least a part of an outer circumferential end face as a first end face configured to face the first light source and receive incident light, a first main surface, and a second main surface; a first sheet including one main surface as a third main surface configured to face the first main surface and a fourth main surface; a second light source; and a second light guide plate including at least a part of an outer circumferential end face as a second end face configured to face the second light source, a fifth main surface, and a sixth main surface configured to face the fourth main surface.Type: GrantFiled: February 22, 2023Date of Patent: September 24, 2024Assignee: Sharp Display Technology CorporationInventors: Shugo Yagi, Junichi Masuda, Yuuichi Kanbayashi, Satoshi Tsubooka
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Patent number: 12099198Abstract: A system comprising a waveguide including an in-coupler and an out-coupler, and a digital micromirror device (DMD) to receive the light from the waveguide via the out-coupler, and to direct modulated light through the waveguide, the modulated light passing through the waveguide before being directed toward a user's eye.Type: GrantFiled: July 24, 2023Date of Patent: September 24, 2024Assignee: Avegant Corp.Inventors: Aaron Matthew Eash, Andrew John Gross, Edward Chia Ning Tang, Warren Cornelius Welch, III, Joseph Daniel Lowney
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Patent number: 12072487Abstract: Eye-tracking systems and methods utilize transparent illumination structures having a plurality of IR ?LEDs distributed with a predetermined pattern within the transparent viewing area of illumination structures. The ?LEDs are small enough that they are not visible by a user during use of an HMD or other mixed-reality device, for example, such that they can be positioned within the line-of-sight of the user through the illumination structure and without visibly obscuring or interfering with the user's view of the mixed-reality environment by the mixed-reality device.Type: GrantFiled: January 27, 2023Date of Patent: August 27, 2024Assignee: Microsoft Technology Licensing, LLCInventors: Aswathi Sudhir, David Charles Rohn, James Peele Terrell
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Patent number: 12053970Abstract: The present disclosure provides a display screen and a display device. The display screen includes a display panel, a cover plate, and a shielding layer disposed between the two. The display screen further includes a bonding layer disposed between the shielding layer and the display panel. The bonding layer includes a glue layer including a first side close to the display panel and a second side away from the display panel; and a light guiding portion including a light incident side configured to input ultraviolet light and a light-emitting side configured to output the ultraviolet light to the first side or the second side.Type: GrantFiled: July 1, 2020Date of Patent: August 6, 2024Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventor: Mingjun Zhou
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Patent number: 12055733Abstract: A light guide plate according to one or more embodiments may include a first optical deflector that guides light to be emitted within a first angle range to display a stereoscopic image in a space, and a second optical deflector that guides light to be emitted within a second angle range to display a stereoscopic image at a same position as the stereoscopic image. Across a boundary between the first angle range and the second angle range, a discrete change occurs between luminance of a portion of the stereoscopic image and luminance of a portion of the stereoscopic image corresponding to the portion of the stereoscopic image.Type: GrantFiled: February 17, 2022Date of Patent: August 6, 2024Assignee: OMRON CORPORATIONInventor: Yasuhiro Tanoue
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Patent number: 12050334Abstract: A backlight module and a display device are disclosed. The backlight module includes a light guide structure and a light source. The light source includes a first light-emitting assembly and a second light-emitting assembly. A light receiving structure is disposed behind and corresponding to a position of the first light-emitting assembly and is configured to concentrate light emitted by the first light-emitting assembly within a predetermined angle range so that the light is directed outward from the light receiving structure. The light guide structure is disposed behind and corresponding to a position of the light receiving structure and is configured to direct outward the light concentrated in the light receiving structure through specular reflection.Type: GrantFiled: June 15, 2021Date of Patent: July 30, 2024Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventor: Haotian Xu
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Patent number: 12044398Abstract: A lighting device disclosed in an embodiment of the invention includes: a substrate; a plurality of light emitting devices disposed on the substrate; a first reflective member disposed on the substrate; a resin layer disposed on the first reflective member; a second reflective member disposed on the resin layer; and a wavelength conversion layer disposed on one surface of the resin layer opposite to the light emitting surface of the light emitting device, wherein a distance from the light emitting surface to the one surface may be 5 to 10 times a height of the resin layer.Type: GrantFiled: September 21, 2023Date of Patent: July 23, 2024Assignee: LG INNOTEK CO., LTD.Inventors: Dong Il Eom, Jung Ju Lee
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Patent number: 12038648Abstract: According to one embodiment, an illumination device includes red light emitting elements, green light emitting elements and blue light emitting elements opposing a first side surface of a first light guide, and the red light emitting elements, the green light emitting elements and the blue light emitting elements are disposed along the first side surface in a third direction that intersects the first direction and the second direction, and, arranged to be symmetrical with respect to a central axis of the third direction of the first side surface.Type: GrantFiled: June 28, 2023Date of Patent: July 16, 2024Assignee: Japan Display Inc.Inventors: Masafumi Okada, Shinichi Komura, Ken Onoda
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Patent number: 12025304Abstract: A lamp includes an extended planar light source, and an optical element arranged with the light source, wherein the optical element comprises an outer surface having an indented cusp substantially over the light source. A lamp includes an extended planar light source, and an optical element arranged with the light source, wherein the optical element comprises an outer surface having a portion at a peripheral edge comprising a curvature configured to redirect light emitted from the light source by total internal reflection.Type: GrantFiled: March 10, 2023Date of Patent: July 2, 2024Assignee: BRIDGELUX, INC.Inventors: Xiaolu Chen, Wenhui Zhang, Scott West
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Patent number: 12007599Abstract: A display for an information handling system includes a light guide plate, a bottom cover, and a damper. The damper in physical communication with the light guide plate and with the bottom cover. The damper includes a compression portion and a catch portion. The compression portion deforms in response to a force exerted on the compression portion by the light guide plate. The catch portion includes a first groove that interfaces with an end of the compression portion during a first environmental condition. The first groove holds the end of the compression portion and supports the light guide plate when the display is in a pivot position during the first environmental condition.Type: GrantFiled: April 17, 2023Date of Patent: June 11, 2024Assignee: Dell Products L.P.Inventor: Guentaek Oh
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Patent number: 12000585Abstract: A lighting device includes a first light-emitting device, a plurality of second light-emitting devices, and a control unit. The first light-emitting device has a first emission spectrum that has a first peak wavelength in a wavelength range from 360 nm to 430 nm and in which a light intensity continuously decreases with decreasing wavelength from the first peak wavelength and with increasing wavelength from the first peak wavelength. Each of the plurality of second light-emitting devices has a second emission spectrum with a second peak wavelength in the range from 360 nm to 430 nm, that has a third peak wavelength in a range from the second peak wavelength to 750 nm, and in which a light intensity continuously decreases with decreasing wavelength from the second peak wavelength and with increasing wavelength from the third peak wavelength. The control unit controls all of the light-emitting devices.Type: GrantFiled: August 6, 2020Date of Patent: June 4, 2024Assignee: KYOCERA CORPORATIONInventors: Hidetaka Katou, Tamio Kusano, Kohei Ikeda
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Patent number: 11988920Abstract: A direct-lit backlight module includes a substrate, an optical layer that forms an accommodating space with the substrate, first light emitting units in the accommodating space, second light emitting units in the accommodating space and a control unit electrically connected to the first light emitting units and the second light emitting units. The first light emitting units emit light towards the optical layer and have a first viewing angle. The second light emitting units emit light towards the optical layer and have a second viewing angle. The control unit provides a control signal to selectively drive the first light emitting units and the second light emitting units. The first light emitting units are adjacent to the second light emitting units. The first light emitting units and the second light emitting units are arranged alternately. The first viewing angle is larger than the second viewing angle.Type: GrantFiled: October 11, 2023Date of Patent: May 21, 2024Assignee: Qisda CorporationInventors: Chang-Min Shao, Pin-Feng Yu, Jyun-Sheng Syu
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Patent number: 11977252Abstract: A display device includes a display panel configured to display an image, a first backlight unit that is disposed under the display panel and outputs first light, and a second backlight unit that is positioned between the display panel and the first backlight unit and outputs second light, wherein the first backlight unit includes a first light guide plate having first patterns protruding or recessed from a rear surface of the first light guide plate, the second backlight unit includes a second light guide plate having second patterns protruding from a rear surface of the second light guide plate, and the second patterns have an asymmetric pyramid shape.Type: GrantFiled: March 24, 2023Date of Patent: May 7, 2024Assignee: LG Display Co., Ltd.Inventors: Yunsang Kim, Yongkun Kim
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Patent number: 11966107Abstract: An anti-peep display device includes a display module and an anti-peep module disposed on the display module. The anti-peep module includes the following features. The first light incident surface faces the display surface, the second and third light incident surfaces are located on opposite sides of the first light incident surface, the first condensing portion is disposed corresponding to the second light incident surface and the first light source, the second condensing portion is disposed corresponding to the third light incident surface and the second light source, the first and second condensing portions convert beams of the first and second light sources into anti-peep beams with a beam angle less than 10 degrees, and the optical microstructures reflect the anti-peep beams and exit the anti-peep beams from the light guide plate. The present invention also provides an anti-peep method applicable to the anti-peep display device.Type: GrantFiled: June 14, 2023Date of Patent: April 23, 2024Assignee: CHAMP VISION DISPLAY INC.Inventors: Chung-Hao Wu, Hsin-Hung Lee, Chin-Ku Liu, Chun-Chien Liao, Wei-Jhe Chien
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Patent number: 11960114Abstract: A backlight module and a display device are disclosed. The backlight module includes a back plate, an assembled light plate composed of multiple light plates, and a pressure bar. The assembled light plate is fixed to the back plate by the pressure bar. The pressure bar includes a fixing portion and a connecting portion. One end of the connecting portion goes through the gap, and the other end is connected to the fixing portion. The fixing portion extends from the gap to the light plates on both sides to form a first abutting portion and a second abutting portion. The surfaces of the first and the second abutting portions adjacent to the light plates are level and flush with each other. The first and the second abutting portions respectively abut and firmly press the light-emitting surfaces of the light plates on both sides. The fixed portion covers the entire gap.Type: GrantFiled: December 26, 2022Date of Patent: April 16, 2024Assignees: CHUZHOU HKC OPTOELECTRONICS TECHNOLOGY CO., LTD., HKC CORPORATION LIMITEDInventors: Mei Zhang, Haoxuan Zheng
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Patent number: 11960167Abstract: A backplane includes: a substrate including a circuit structure layer, a first reflective layer disposed on a bearing surface of the substrate, a plurality of light-emitting diode chips, and a plurality of optical structures. The first reflective layer includes a plurality of through holes spaced apart. A light-emitting diode chip in the plurality of light-emitting diode chips is located in one of the plurality of through holes. The plurality of light-emitting diode chips are electrically connected to the circuit structure layer. The circuit structure layer is configured to drive the plurality of light-emitting diode chips to emit light. An optical structure in the plurality of optical structures covers the light-emitting diode chip, a light incident surface of the optical structure is in contact with a light exit surface of the light-emitting diode chip, and a light exit surface of the optical structure is a curved surface.Type: GrantFiled: February 5, 2021Date of Patent: April 16, 2024Assignees: BOE MLED Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Pei Li, Haiwei Sun, Ming Zhai, Lu Yu, Kangle Chang, Jinpeng Li, Pengjun Cao, Yutao Hao, Shubai Zhang, Shuo Wang, Pei Qin, Zewen Gao, Yali Zhang
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Patent number: 11953784Abstract: A light guide plate assembly, a backlight module, and a display device are provided. The light guide plate assembly is configured to guide exiting light emitted from a light-emitting element. The light guide plate assembly includes a reflective part includes an opening, and a transmissive part. At least a part of the transmissive part is located at a side of the reflective part adjacent to a light-exiting side of the light guide plate assembly. The transmissive part includes a first part. Along a direction from a center of the opening to an edge of the opening, light intensity of the exiting light received by the first part is negatively correlated to light transmittance of the first part.Type: GrantFiled: April 25, 2023Date of Patent: April 9, 2024Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.Inventors: Zhanxiang Guo, Yumin Xu, Jianguo Bian, Jiantao Ren, Binbin Chang, Zhaoxing Gao, Weiyang Sun, Wanzhen Wang
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Patent number: 11947215Abstract: A backlight module includes a housing, a light source, at least one supporting member, a diffuser plate, and an optical film. The housing includes a backplate portion, a sidewall portion, and a panel mounting platform. The sidewall portion is arranged along a periphery of the backplate portion. The panel mounting platform is connected and bent relative to the sidewall portion, such that the panel mounting platform, the sidewall portion, and the backplate portion form a concavity. The light source is disposed on the backplate portion. The supporting member is disposed in the housing and at least partially located in the concavity. The optical film and the diffuser plate are stacked on the supporting member. The supporting member has a reflective incline structure that is configured to directly reflect light traveling towards an inner side surface of the housing towards the diffuser plate.Type: GrantFiled: February 20, 2023Date of Patent: April 2, 2024Assignee: AmTRAN Technology Co., Ltd.Inventors: Chih Kuei Wang, Min Hung Cheng
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Patent number: 11927843Abstract: A backlight module and a display device are disclosed. The backlight module includes a back plate and a plurality of light plates arranged on the back plate, where a seam is formed between adjacent light plates. The backlight module further includes a framework assembly that fixed to the back plate and arranged surrounding the light plates. At least a part of the framework assembly is disposed in the seam. A material of the framework assembly includes a reflective material.Type: GrantFiled: December 8, 2022Date of Patent: March 12, 2024Assignee: HKC CORPORATION LIMITEDInventors: Xiaolan Tong, Haijiang Yuan
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Patent number: 11908842Abstract: Disclosed are embodiments of apparatus and methods that provide light emitting displays with improved wide angle color viewing. A plurality of light emitting elements is arranged in a predetermined pattern and collectively creates a viewing plane. A portion of the light emitting elements are disposed in a primary orientation while the remainder of the light emitting element are disposed in a complementary orientation. Each light emitting element in a primary orientation is adjacent to a light emitting element in the complementary orientation. The spatial light emission pattern of the primary orientation is complementary to the spatial light emission pattern of the complementary orientation. Adjacent pairs of primary-complementary oriented light emitting elements cancel a substantial amount of color variation that would otherwise be seen when one varies the gaze angle upon the viewing plane.Type: GrantFiled: December 17, 2021Date of Patent: February 20, 2024Assignee: Nanolumens Acquisition, Inc.Inventor: Jorge Perez-Bravo
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Patent number: 11899309Abstract: According to one embodiment, an electronic apparatus comprises a liquid crystal panel, and an illumination device that illuminates the liquid crystal panel, wherein the illumination device includes a light guide having a recess portion recessed from a first side surface toward a second side surface on the first side surface, and a third side surface exposed by the recess portion and opposed to the second side surface, a plurality of first light sources opposed to the first side surface, and a plurality of second light sources located in the recess portion and opposed to the third side surface, and each of the second light sources has a light-emitting surface smaller than that of each of the first light sources.Type: GrantFiled: December 16, 2021Date of Patent: February 13, 2024Assignee: Japan Display Inc.Inventor: Makoto Hasegawa
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Patent number: 11899236Abstract: A transparent light source system for a display device comprises a light source, and a light guide plate which includes an incident surface opposite to the light source, an upper surface, a lower surface parallel to the upper surface, and a lateral surface opposite to the incident surface. An outer light guide film is disposed outside the upper surface, first optical micro-structures allowing light transmitted in the light guide plate to be emitted from the upper surface are disposed on the upper surface, second optical micro-structures opposite to the first optical micro-structures are disposed on an inner surface of the outer light guide film, and the second optical micro-structures allow light emitted out of the first optical micro-structures to be emitted from an outer surface of the outer light guide film.Type: GrantFiled: April 9, 2021Date of Patent: February 13, 2024Assignee: MAANSHAN-JINGZHI TECHNOLOGY CO LTDInventors: Peng Wu, Yulei Chen, Ruirui Zhang, Tong Li
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Patent number: 11899306Abstract: A light emitting device includes: a lightguide plate including a first surface on which a plurality of first recesses are provided; a light-reflective resin layer located on a bottom portion of each first recess; a plurality of light emitting elements each having an upper surface and a lateral surface, wherein each one of the plurality of light emitting elements is arranged in a corresponding one of the plurality of first recesses; and a plurality of wavelength conversion members, wherein: the upper surface of each light emitting element is attached to the light-reflective resin layer; and each of the plurality of wavelength conversion members covers the lateral surface of the light emitting element in the first recess.Type: GrantFiled: September 16, 2021Date of Patent: February 13, 2024Assignee: NICHIA CORPORATIONInventor: Mamoru Imada
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Patent number: 11882630Abstract: The invention provides a lighting system (100) comprising a first light source (10), a second light source (20), and a control system (30), wherein: —the first light source (10) is configured to generate first light source light (11) with a controllable first radiant flux, wherein the first radiant flux is dimmable over a first dimming range; wherein the first light source light (11) has a first angular distribution relative to the lighting system (100); —the second light source (20) is configured to generate second light source light (21) with a controllable second radiant flux, wherein the second radiant flux is dimmable over a second dimming range; wherein the second light source light (21) has a second angular distribution relative to the lighting system (100), different from the first angular distribution; —the control system (30) is configured to control the first light source (10) and the second light source (20), wherein, in a controlling mode of the control system (30), the control system (30) is conType: GrantFiled: February 10, 2020Date of Patent: January 23, 2024Assignee: SIGNIFY HOLDING B.V.Inventors: Michel Cornelis Josephus Marie Vissenberg, Leonie Maria Geerdinck, Barry Mos, Lucas Jozef Maria Schlangen
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Patent number: 11874491Abstract: A lighting device disclosed in an embodiment of the invention includes a substrate; a light source including a plurality of light emitting devices disposed on the substrate; a resin layer disposed on the substrate; and a first diffusion layer disposed on the resin layer, wherein the resin layer includes a first resin portion disposed on the light source, and a second resin portion adjacent to the first resin portion and disposed on the substrate. The upper surface of the first resin portion has an inclination and is spaced apart from the first diffusion layer, the second resin portion includes a material different from that of the first resin portion, and the second resin portion based on the upper surface of the substrate. The height of the upper surface may be greater than the lowermost height of the upper surface of the first resin portion.Type: GrantFiled: April 14, 2023Date of Patent: January 16, 2024Assignee: LG INNOTEK CO., LTD.Inventor: Young Jae Choi
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Patent number: 11860402Abstract: According to one embodiment, an illumination device, in which a plurality of light guides include a plurality of light guide pairs, each of the plurality of light guide pairs includes a first light guide and a second light guide, the plurality of light guide pairs are connected with their long sides opposed to each other, a plurality of laser light source elements include a plurality of first light source elements arranged to be opposed to a first side surface on a short side of the first light guide of the light guide pair, and a plurality of second light source elements arranged to be opposed to a second side surface of the second light guide of the light guide pair.Type: GrantFiled: July 6, 2022Date of Patent: January 2, 2024Assignee: Japan Display Inc.Inventors: Koji Fujisawa, Ken Kagabu, Hiroaki Kijima, Ken Onoda
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Patent number: 11852860Abstract: A light pipe is mounted to a support structure along a length of the light pipe. The light pipe has an end at which light enters the light pipe. Light exits the light pipe at an emissive surface of the light pipe. A reflective backing is positioned at a surface of the light pipe opposite the emissive surface. A compliant member between the reflective backing and the support structure maintains the reflective backing flush against the surface of the light pipe.Type: GrantFiled: March 9, 2020Date of Patent: December 26, 2023Assignee: Hewlett-Packard Development Company, L.P.Inventors: Edward Anthony Hill, Kyoungrok Kim, Rene Octavio Valenzuela-Rivas
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Patent number: 11841579Abstract: A backlight module and a liquid crystal display panel are provided. The backlight module includes a substrate, multiple light emitting diodes, a quantum dot layer, a light-shielding layer, and a heat dissipation structure. The substrate has a first surface and a second surface opposite to the first surface. The multiple light emitting diodes are disposed on the first surface. The quantum dot layer is disposed on one side of the multiple light emitting diodes facing away from the substrate. The multiple light emitting diodes are each configured to emit lights of a first color. The lights of the first color are of the first color, a second color, or a third color after passing through the quantum dot layer. The light-shielding layer is disposed between each two adjacent light emitting diodes. The heat dissipation structure is disposed on the second surface.Type: GrantFiled: November 21, 2022Date of Patent: December 12, 2023Assignees: CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD., HKC CORPORATION LIMITEDInventors: Xiaogang Hu, Haoxuan Zheng
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Patent number: 11835821Abstract: A backlight for an image forming device includes spaced-apart front and back optical reflectors defining an optical cavity therebetween, and at least one light source for emitting light into the optical cavity. The front optical reflector may be disposed between the image forming device and the back optical reflector. For substantially normally incident light and for nonoverlapping first and second wavelength ranges, the front optical reflector may transmit at least 70% of light for each wavelength in the first wavelength range, and may reflect at least 70% of light for each wavelength in the second wavelength range. The back optical reflector may reflect at least 70% of light for each wavelength in the first wavelength range, and may transmit at least 70% of light for each wavelength in the second wavelength range. The emitted light may have at least one wavelength in the first wavelength range and at least one wavelength in the second wavelength range.Type: GrantFiled: September 26, 2022Date of Patent: December 5, 2023Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Quinn D. Sanford, Matthew B. Johnson, Ryan T. Fabick, Nathaniel K. Naismith
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Patent number: 11828971Abstract: A light-emitting module includes first and second light sources, first and second light guide parts, and a first light-modulating member. The first light guide part includes a first A-major surface, a first B-major surface, a first side surface positioned between the first A-major surface and the first B-major surface, and a first hole portion in which the first light source is disposed. The second light guide part includes a second A-major surface, a second B-major surface, a second side surface positioned between the second A-major surface and the second B-major surface, the second side surface facing the first side surface, and a second hole portion in which the second light source is disposed. The first light-modulating member is positioned at an upper side of the first A-major surface. The first light-modulating member overlaps the first A-major surface and the first side surface when viewed in top-view.Type: GrantFiled: October 28, 2021Date of Patent: November 28, 2023Assignee: NICHIA CORPORATIONInventors: Takuya Nakabayashi, Toru Hashimoto
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Patent number: 11796730Abstract: According to one embodiment, an illumination device includes a first light guide including a first main surface, a second main surface, a first side surface and a second side surface, a first light source and a first layer including a first prism provided on the second side surface. The first prism protrudes from the second main surface toward the opposite side to the first main surface and has a cross-sectional shape of a triangle with a first slope and a second slope. The incident angle of light emitted from the first light source and entering the first light guide from the second side surface, the angle between the first slope and the first direction, and the angle between the first slope and the second slope are set to values that satisfy the predetermined conditions, respectively.Type: GrantFiled: May 12, 2022Date of Patent: October 24, 2023Assignee: Japan Display Inc.Inventors: Hiroaki Kijima, Shinichi Komura, Koichi Okuda, Ken Onoda
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Patent number: 11796860Abstract: According to one embodiment, an illumination device includes a first light emitting element, a second light emitting element, an overcoat layer covering the first and second light emitting elements, a first transparent block disposed on the overcoat layer and overlapping the first light emitting element, a second transparent block disposed on the overcoat layer and overlapping the second light emitting element, and an optical sheet group disposed on the first transparent block and the second transparent block. A first side surface of the first transparent block and a second side surface of the second transparent block face each other. An air layer is interposed between the first side surface and the second side surface.Type: GrantFiled: August 16, 2022Date of Patent: October 24, 2023Assignee: Japan Display Inc.Inventor: Yosuke Nakamori
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Patent number: 11745649Abstract: A vehicle panel including a perforated pattern and a method of manufacturing the same, whereby a pattern can be realized through minimal means and a simple method, thereby reducing the amount of time taken and the expense incurred for the production of a product. Additionally, large-area patterning is possible, so the method can be applied to large parts. Moreover, the vehicle panel is capable of realizing a uniform lighting pattern without variation in luminance. When power is turned off, only a perforated pattern is viewed and, when power is turned on, a logical pattern with various designs is viewed, advantageously improving the aesthetic appearance of metal parts.Type: GrantFiled: December 16, 2021Date of Patent: September 5, 2023Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATIONInventors: Sung Ho Yoon, Sun Jae Lee, Hyun Jin Lee
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Patent number: 11739908Abstract: The present disclosure provides a panel light with a night light function, including a main surface ring, a night light surface ring, a backing plate, a diffusion ring, a scattering micro-lens ring, a main light bar, a night light bar, a diffusion plate, a light guide plate and a reflective sheet; the main surface ring is a hollow annular cavity, the diffusion ring and the scattering micro-lens ring are disposed inside the night light surface ring, the main light bar is fixedly disposed inside the annular cavity of the main surface ring, the night light bar is disposed in a cavity formed by enclosing the main surface ring and the night light surface ring, and the diffusion plate, the light guide plate and the reflective sheet are successively disposed in the annular cavity of the main surface ring from bottom to top.Type: GrantFiled: February 3, 2023Date of Patent: August 29, 2023Assignee: SHENZHEN EPHAN TECHNOLOGY CO., LTDInventors: Shuiqi Zou, Hao Tian
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Patent number: 11703626Abstract: A light emitting device comprises a lightguide formed from a film having an array of coupling lightguides in the form of strips extending from a lightguide region of the film, the coupling lightguides are folded and stacked, and a light source is positioned to emit light into edges of the stacked coupling lightguides to propagate into a light mixing region and then into a light emitting region. The light mixing region comprises a plurality of reflecting surfaces that reflect a portion of the light from the coupling lightguides toward one or more of the lateral edges of the film prior to exiting the film in the light emitting region. The plurality of reflecting surfaces may a light transmitting material printed in the form of lines on the surface of the film and may improve the uniformity of light emitted from the light emitting region.Type: GrantFiled: September 12, 2022Date of Patent: July 18, 2023Assignee: Azumo, Inc.Inventors: Anthony Nichol, Zane Coleman
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Patent number: 11703713Abstract: A light-emitting device is provided, which includes a circuit board, a plurality of light-emitting elements, a first reflective element, and a second reflective element. The light-emitting elements are arranged on the circuit board. The first reflective element is disposed on the circuit board. The second reflective element is disposed on the circuit board. The first reflective element has a first reflectivity R1. The second reflective element has a second reflectivity R2. The first reflectivity R1 is different from the second reflectivity R2. The first reflectivity R1 and the second reflectivity R2 satisfy the following formula: 0<|(R1?R2)|/Max (R1, R2)<20%.Type: GrantFiled: June 22, 2022Date of Patent: July 18, 2023Assignee: Innolux CorporationInventors: May Pan, Fu Kuo, Maggy Hsu
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Patent number: 11686971Abstract: An article for a display device having an output surface. The article includes a light valve, a reflective polarizer, and a diffusing layer. The light valve is configured to be disposed on the output surface of the display device. The light valve is operable in a pass mode and a block mode. The reflective polarizer is disposed on the light valve opposite to the display device. The reflective polarizer is configured to substantially transmit light having a first polarization state and substantially reflect light having an orthogonal second polarization state. The diffusing layer is disposed on the reflective polarizer opposite to the light valve.Type: GrantFiled: January 19, 2020Date of Patent: June 27, 2023Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventor: Feng Zhao
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Patent number: 11678516Abstract: A display panel includes a substrate, a first display area including first pixels, a second display area located at a corner of the first display area and including second pixels, a third display area located between the first display area and the second display area and including third pixels, first display units, second display units, and third display units, which are disposed on the substrate and correspond to the first to third pixels, respectively, and a driver which provides the first to third display units with an electrical signal, and having a portion of which overlaps the third pixels. Slits cut in a direction toward a corner of the substrate from an inner side of the substrate is defined in the substrate at the corner thereof, and the substrate includes a strip portion between two adjacent slits.Type: GrantFiled: January 13, 2021Date of Patent: June 13, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Byeonghee Won, Jaemin Shin, Sangwoo Kim, Jongho Hong
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Patent number: 11656399Abstract: A lighting device disclosed in an embodiment of the invention includes a substrate; a light source including a plurality of light emitting devices disposed on the substrate; a resin layer disposed on the substrate; and a first diffusion layer disposed on the resin layer, wherein the resin layer includes a first resin portion disposed on the light source, and a second resin portion adjacent to the first resin portion and disposed on the substrate. The upper surface of the first resin portion has an inclination and is spaced apart from the first diffusion layer, the second resin portion includes a material different from that of the first resin portion, and the second resin portion based on the upper surface of the substrate. The height of the upper surface may be greater than the lowermost height of the upper surface of the first resin portion.Type: GrantFiled: July 8, 2022Date of Patent: May 23, 2023Assignee: LG INNOTEK CO., LTD.Inventor: Young Jae Choi
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Patent number: 11635619Abstract: A backlit transparent display and a transparent display system provide a displayed image while enabling a background scene to be visible through the display. The backlit transparent display includes a light guide, a plurality of scattering elements, and an array of light valves configured to modulate emitted light scattered from the light guide to provide modulated emitted light representing a displayed image. Transparency of the backlit transparent display is configured to enable the background scene to be visible through the backlit transparent display. The transparent display system includes the array of light valves and a transparent backlight. The transparent display system is configured to provide the displayed image as superimposed on the background scene visible through the transparent display system.Type: GrantFiled: May 2, 2022Date of Patent: April 25, 2023Assignee: LEIA INC.Inventor: David A. Fattal