Plural Patents (Class 362/613)
  • Patent number: 11960114
    Abstract: 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: Grant
    Filed: December 26, 2022
    Date of Patent: April 16, 2024
    Assignees: CHUZHOU HKC OPTOELECTRONICS TECHNOLOGY CO., LTD., HKC CORPORATION LIMITED
    Inventors: Mei Zhang, Haoxuan Zheng
  • Patent number: 11960167
    Abstract: 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: Grant
    Filed: February 5, 2021
    Date of Patent: April 16, 2024
    Assignees: 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
  • Patent number: 11953784
    Abstract: 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: Grant
    Filed: April 25, 2023
    Date of Patent: April 9, 2024
    Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Zhanxiang Guo, Yumin Xu, Jianguo Bian, Jiantao Ren, Binbin Chang, Zhaoxing Gao, Weiyang Sun, Wanzhen Wang
  • Patent number: 11947215
    Abstract: 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: Grant
    Filed: February 20, 2023
    Date of Patent: April 2, 2024
    Assignee: AmTRAN Technology Co., Ltd.
    Inventors: Chih Kuei Wang, Min Hung Cheng
  • Patent number: 11927843
    Abstract: 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: Grant
    Filed: December 8, 2022
    Date of Patent: March 12, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Xiaolan Tong, Haijiang Yuan
  • Patent number: 11908842
    Abstract: 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: Grant
    Filed: December 17, 2021
    Date of Patent: February 20, 2024
    Assignee: Nanolumens Acquisition, Inc.
    Inventor: Jorge Perez-Bravo
  • Patent number: 11899236
    Abstract: 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: Grant
    Filed: April 9, 2021
    Date of Patent: February 13, 2024
    Assignee: MAANSHAN-JINGZHI TECHNOLOGY CO LTD
    Inventors: Peng Wu, Yulei Chen, Ruirui Zhang, Tong Li
  • Patent number: 11899306
    Abstract: 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: Grant
    Filed: September 16, 2021
    Date of Patent: February 13, 2024
    Assignee: NICHIA CORPORATION
    Inventor: Mamoru Imada
  • Patent number: 11899309
    Abstract: 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: Grant
    Filed: December 16, 2021
    Date of Patent: February 13, 2024
    Assignee: Japan Display Inc.
    Inventor: Makoto Hasegawa
  • Patent number: 11882630
    Abstract: 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 con
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: January 23, 2024
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Michel Cornelis Josephus Marie Vissenberg, Leonie Maria Geerdinck, Barry Mos, Lucas Jozef Maria Schlangen
  • Patent number: 11874491
    Abstract: 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: Grant
    Filed: April 14, 2023
    Date of Patent: January 16, 2024
    Assignee: LG INNOTEK CO., LTD.
    Inventor: Young Jae Choi
  • Patent number: 11860402
    Abstract: 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: Grant
    Filed: July 6, 2022
    Date of Patent: January 2, 2024
    Assignee: Japan Display Inc.
    Inventors: Koji Fujisawa, Ken Kagabu, Hiroaki Kijima, Ken Onoda
  • Patent number: 11852860
    Abstract: 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: Grant
    Filed: March 9, 2020
    Date of Patent: December 26, 2023
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Edward Anthony Hill, Kyoungrok Kim, Rene Octavio Valenzuela-Rivas
  • Patent number: 11841579
    Abstract: 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: Grant
    Filed: November 21, 2022
    Date of Patent: December 12, 2023
    Assignees: CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD., HKC CORPORATION LIMITED
    Inventors: Xiaogang Hu, Haoxuan Zheng
  • Patent number: 11835821
    Abstract: 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: Grant
    Filed: September 26, 2022
    Date of Patent: December 5, 2023
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Quinn D. Sanford, Matthew B. Johnson, Ryan T. Fabick, Nathaniel K. Naismith
  • Patent number: 11828971
    Abstract: 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: Grant
    Filed: October 28, 2021
    Date of Patent: November 28, 2023
    Assignee: NICHIA CORPORATION
    Inventors: Takuya Nakabayashi, Toru Hashimoto
  • Patent number: 11796860
    Abstract: 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: Grant
    Filed: August 16, 2022
    Date of Patent: October 24, 2023
    Assignee: Japan Display Inc.
    Inventor: Yosuke Nakamori
  • Patent number: 11796730
    Abstract: 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: Grant
    Filed: May 12, 2022
    Date of Patent: October 24, 2023
    Assignee: Japan Display Inc.
    Inventors: Hiroaki Kijima, Shinichi Komura, Koichi Okuda, Ken Onoda
  • Patent number: 11745649
    Abstract: 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: Grant
    Filed: December 16, 2021
    Date of Patent: September 5, 2023
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Sung Ho Yoon, Sun Jae Lee, Hyun Jin Lee
  • Patent number: 11739908
    Abstract: 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: Grant
    Filed: February 3, 2023
    Date of Patent: August 29, 2023
    Assignee: SHENZHEN EPHAN TECHNOLOGY CO., LTD
    Inventors: Shuiqi Zou, Hao Tian
  • Patent number: 11703626
    Abstract: 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: Grant
    Filed: September 12, 2022
    Date of Patent: July 18, 2023
    Assignee: Azumo, Inc.
    Inventors: Anthony Nichol, Zane Coleman
  • Patent number: 11703713
    Abstract: 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: Grant
    Filed: June 22, 2022
    Date of Patent: July 18, 2023
    Assignee: Innolux Corporation
    Inventors: May Pan, Fu Kuo, Maggy Hsu
  • Patent number: 11686971
    Abstract: 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: Grant
    Filed: January 19, 2020
    Date of Patent: June 27, 2023
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventor: Feng Zhao
  • Patent number: 11678516
    Abstract: 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: Grant
    Filed: January 13, 2021
    Date of Patent: June 13, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Byeonghee Won, Jaemin Shin, Sangwoo Kim, Jongho Hong
  • Patent number: 11656399
    Abstract: 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: Grant
    Filed: July 8, 2022
    Date of Patent: May 23, 2023
    Assignee: LG INNOTEK CO., LTD.
    Inventor: Young Jae Choi
  • Patent number: 11635619
    Abstract: 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: Grant
    Filed: May 2, 2022
    Date of Patent: April 25, 2023
    Assignee: LEIA INC.
    Inventor: David A. Fattal
  • Patent number: 11619843
    Abstract: According to one embodiment, a display device includes a display panel and a light-emitting module. The light-emitting module includes a first light source having a first light-emitting point, a second light source having a second light-emitting point, a first light guide and a second light guide forming a contact portion in contact with the first light guide. The first light guide and the second light guide are arranged in a first direction, and a distance between the contact portion and the first light-emitting point along the first direction is equal to a distance between the contact portion and the second light-emitting point along the first direction.
    Type: Grant
    Filed: February 16, 2022
    Date of Patent: April 4, 2023
    Assignee: Japan Display Inc.
    Inventors: Zhengyi Gou, Hisanori Kawakami
  • Patent number: 11619777
    Abstract: The present invention includes a pane unit (1), which comprises a frame structure (2), an illuminable pane (4), a lighting element (5), and a receptacle (8) therefor, wherein a homogeneous light field is generated by the lighting, with, e.g. the lighting element (5), of at least one narrow side (7) of the illuminable pane (4).
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: April 4, 2023
    Assignee: Glass Technology GMBH
    Inventors: Heinz Haring, Andreas Wiesmueller
  • Patent number: 11609447
    Abstract: According to one embodiment, a display device includes a liquid crystal display panel including a first substrate, a second substrate, a first liquid crystal layer, a first polarizer and a second polarizer, a dimming panel including a third substrate, a fourth substrate, a second liquid crystal layer, a third polarizer and a fourth polarizer, a first transparent conductive layer provided on the first substrate, a conductive tape connected to the first transparent conductive layer and a first metal frame formed of a metal material, and the conductive tape is connected to the first metal frame.
    Type: Grant
    Filed: July 26, 2022
    Date of Patent: March 21, 2023
    Assignee: JAPAN DISPLAY INC.
    Inventors: Shimon Itakura, Yuzo Ota
  • Patent number: 11579354
    Abstract: Disclosed is a backlight module. The backlight module includes a back plate, a light guide plate, and a clamp; the back plate includes a back plate body, and a plurality of side plates disposed along a periphery of the back plate body and connected to the back plate body, and a plane of each side plate is intersected with a plane of the back plate body. The light guide plate is disposed on a side, connected to the side plate, of the back plate body, and a gap is present between the light guide plate and each of the plurality of side plates. The clamp is disposed in the gap between the light guide plate and at least part of the plurality of side plates, and interference-fitted with the gap. The clamp is resilient, and the clamp and the side plate are positioned by a projection-recess fitting structure.
    Type: Grant
    Filed: November 1, 2021
    Date of Patent: February 14, 2023
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Qingyi Zhuang, Haifeng Xu, Ran Tao, Jinfeng Zhang, Jing Li
  • Patent number: 11574600
    Abstract: A display device includes a substrate, a display panel including a first display area, a second display area, and a third display area between the first and second display areas, each of the first, second, and third display areas including a plurality of pixels, and a sensor which is between the substrate and the first display area of the display panel and senses an external object through the first display area. A first pixel density of the first display area is less than a second pixel density of the second display area, and a pixel density of the third display area varies with relative distances from the first display area.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: February 7, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Chang Ho Hyun, Chang Woo Kahng
  • Patent number: 11536438
    Abstract: Disclosed herein are lighting apparatuses that have a centered light source and at least one off-center light source. According to certain embodiments, a lighting apparatus includes a first light fixture having a first light source arranged at a first position that is centered with respect to a first optical axis of a first optic, and a second light source arranged at a second position that is off-center with respect to the first optical axis of the first optic. The first optic is configured to receive light emitted by the first light source and the second light source.
    Type: Grant
    Filed: October 26, 2020
    Date of Patent: December 27, 2022
    Assignee: ABL IP HOLDING LLC
    Inventors: Gregory P. Frankiewicz, John G. Serra
  • Patent number: 11500245
    Abstract: The present application discloses a backlight module and a display device. The backlight module includes a plurality of first regions and a plurality of second regions arranged adjacently; the backlight module includes a substrate, including a light-transmitting region, in which the light-transmitting region is at least partially located in the second regions; a plurality of first light-emitting elements, arranged at a side of the substrate, in which the first light-emitting elements are located in the first regions, and the first light-emitting elements emit light along a direction perpendicular to a plane where the substrate is located; a light-guiding plate, arranged at a side of the substrate away from the first light-emitting elements, in which the light-guiding plate includes a plurality of light-supplementing portions located in the second regions; and at least one second light-emitting element, arranged at a side face of the light-guiding plate.
    Type: Grant
    Filed: March 9, 2022
    Date of Patent: November 15, 2022
    Assignee: Xiamen Tianma Microelectronics Co., Ltd.
    Inventors: Zhiqiang Zhu, Yaozuo Ke
  • Patent number: 11500147
    Abstract: A backlight source module and a display device are provided. The backlight source module includes a back plate structure and a rubber member. The back plate structure includes a bottom plate, and a first side plate and a second side plate respectively connected with the bottom plate, and the first side plate and the second side plate oppose each other. A light-emitting portion, a light-guiding component and the rubber member are sequentially disposed on the bottom plate along a first direction pointing from the first side plate to the second side plate. The rubber member is only disposed at the second side plate.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: November 15, 2022
    Assignees: BOE OPTICAL SCIENCE AND TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Wenjun Li
  • Patent number: 11493681
    Abstract: A backlight unit and a display device including the backlight unit are discussed. The backlight unit can include a printed circuit, a plurality of light sources disposed on the printed circuit, and a first base film disposed on the printed circuit and including a plurality of first holes provided in an area where the plurality of light sources are disposed and a plurality of second holes spaced apart from the plurality of first holes, wherein the plurality of second holes surround the plurality of first holes. The backlight unit can further include a plurality of light source protectors disposed on the printed circuit and disposed in the plurality of first holes, a plurality of light path converters disposed on the printed circuit and including a material different from the light source protectors, and a light control film disposed on the light source protectors and the light path converters.
    Type: Grant
    Filed: December 20, 2021
    Date of Patent: November 8, 2022
    Assignee: LG DISPLAY CO., LTD.
    Inventor: Suhun Lee
  • Patent number: 11480838
    Abstract: The purpose of the invention is to realize the display whose screen is seen as floating in the transparent medium. The present invention, for example, takes a following structure. A display device including a transparent display device being fixed in a pedestal including: the transparent display device having a display area and a first transparent medium, the first transparent medium existing between the display area and the pedestal, in which scanning lines and video signal lines are formed in the display area, scanning line lead wires and video signal lead wires are formed in the first transparent medium, and provided an area of the display area is S1, and an area of the first transparent medium is S2, S2/S1 is 0.5 or more.
    Type: Grant
    Filed: August 26, 2021
    Date of Patent: October 25, 2022
    Assignee: Japan Display Inc.
    Inventor: Youhei Iwai
  • Patent number: 11467421
    Abstract: A multi-directional backlight and a multi-user multiview display provide emitted light and associated multiview images having different mutually exclusive angular ranges and different user-specific view zones. The multi-directional backlight includes first and second multiview backlights, each of which includes multibeam elements configured to provide emitted light having directional light beams with directions corresponding to view directions of a respective multiview images. The emitted light provided by the first multiview backlight has a first angular range that is mutually exclusive of a second angular range of emitted light provided by the second multiview backlight, at respective first and second convergence distances. The multi-user multiview display includes a first multiview display configured to provide a first multiview image to a first user in a first view zone and a second multiview display configured to provide a second multiview image to a second user in a second view zone.
    Type: Grant
    Filed: July 8, 2021
    Date of Patent: October 11, 2022
    Assignee: LEIA INC.
    Inventors: David A. Fattal, Thomas Hoekman
  • Patent number: 11460180
    Abstract: A Light Emitting Diode (LED) Luminaire retrofit kit used with Exit Signs. This kit has an integral Driver On-Board (DOB) . The integrated Circuit Chip (IC Chip) on Printed circuit Board (PCB) eliminates the need for a separate LED Driver to drive the LEDs is on Board. The PCB includes a metal oxide varistor (MOV), and an array of Light Emitting Diodes (LEDs) arranged in an optimized configuration. An integral plastic Diffuser provides a uniform Light to the exit sign. All the components are laid out in a single low profile PC Board. The system provides maximum power output consuming very low input power. The system can operate at 120 or 277 Volts 60 Hz. The specially designed diffuser is positioned over LEDs for uniform illumination over desired area eliminating the Dot Matrix Pattern produced by LEDs. The luminaire can be made to varying lengths.
    Type: Grant
    Filed: December 24, 2020
    Date of Patent: October 4, 2022
    Assignee: Radionic Industries, Inc.
    Inventors: Jeffrey Winton, Sri Sridharan
  • Patent number: 11430921
    Abstract: Apparatus, systems, methods, and articles of manufacture to generate, trap, and convert light using a micro light emitting diode (LED) or similar device are disclosed. An example apparatus includes a first mirror to reflect a first wavelength light and a second wavelength light. The example apparatus includes a micro LED on the first mirror, the micro LED to generate the first wavelength light. The example apparatus includes a quantum dot film on the micro LED, the quantum dot film to convert the first wavelength light to the second wavelength light. The example apparatus includes a second mirror on the quantum dot film, the second mirror to reflect the first wavelength light and transmit the second wavelength light.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: August 30, 2022
    Assignee: Intel Corporation
    Inventor: Khaled Ahmed
  • Patent number: 11422407
    Abstract: A light source device comprises a diffuser plate and a light source module disposed behind the diffuser plate. The light source module includes a substrate, a plurality of light emitting diodes mounted on the substrate, and a plurality of reflective layers each provided on a front surface of the plurality of light emitting diodes. When a distance between the centers of each of the plurality of light emitting diodes is referred to as a pitch, and a distance between the diffuser plate and the substrate is referred to as an optical distance, a ratio of the pitch to the optical distance satisfies the following expression: 2.5?pitch/optical distance?4.5.
    Type: Grant
    Filed: June 16, 2021
    Date of Patent: August 23, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chunsoon Park, Sungyeol Kim, Kyehoon Lee
  • Patent number: 11415740
    Abstract: 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: Grant
    Filed: December 24, 2019
    Date of Patent: August 16, 2022
    Assignee: LG INNOTEK CO., LTD.
    Inventor: Young Jae Choi
  • Patent number: 11397350
    Abstract: A backlight module is provided, which includes a circuit board, a plurality of light-emitting elements, a light guide plate, a first reflective element, and a second reflective element. The circuit board has a plurality of light-reflecting regions. The light-emitting elements are arranged on the circuit board along a first direction. The light guide plate is disposed on the circuit board. The first reflective element is disposed between the light guide plate and the circuit board. The first reflective element surrounds the light-emitting elements. The second reflective element is disposed between the light guide plate and the circuit board. The second reflective element corresponds to the light-reflecting regions. The first reflective element has a first reflectivity R1. The second reflective element has a second reflectivity R2. The first reflectivity R1 and the second reflectivity R2 satisfy the following formula: 0?|(R1?R2)|/Max(R1, R2)<20%.
    Type: Grant
    Filed: June 10, 2021
    Date of Patent: July 26, 2022
    Assignee: Innolux Corporation
    Inventors: May Pan, Fu Kuo, Maggy Hsu
  • Patent number: 11385395
    Abstract: The present application discloses a light guide plate and a display device. The light guide plate has a light emitting surface configured to guide light out, the light emitting surface is provided with first micro structures, and the first micro structures protrude from the light emitting surface; the first micro structures are gradually tightly arranged on the light emitting surface inwards from the light incident surface; widths of the first micro structures gradually reduce inwards from the light incident surface. Light passes through the first micro structures protruding from the light emitting surface, an incident angle is reduced, so that the light is not prone to generate total reflection, a penetration rate of the light on the light emitting surface of the light guide plate is improved, and a light utility rate is increased.
    Type: Grant
    Filed: March 16, 2021
    Date of Patent: July 12, 2022
    Assignee: JRD COMMUNICATION (SHENZHEN) LTD.
    Inventors: Zhuwei Qiu, Jitao Ma, Ke Lin, Yang Yu
  • Patent number: 11359791
    Abstract: A luminaire includes a housing, a downlight that includes one or more first light sources configured to emit a first light downwardly from the housing, a waveguide, and one or more second light sources. The waveguide is formed of a portion of an optical material and characterized by opposing planar faces joined by one or more edge faces about a periphery of the optical material. The waveguide forms at least a portion of an uppermost optical surface of the luminaire. The one or more second light sources are coupled with the housing and configured to emit a second light into the optical material through at least one of the one or more edge faces. The waveguide is configured to emit at least a portion of the second light upwardly from an upper one of the planar faces.
    Type: Grant
    Filed: June 29, 2021
    Date of Patent: June 14, 2022
    Assignee: ABL IP Holding LLC
    Inventors: Douglas Dewayne Grove, Benjamin Bruckner
  • Patent number: 11339942
    Abstract: A vehicle lamp includes a light source and a plate-shaped light guide including a first plate surface on which a plurality of reflective elements are formed and a second plate surface. The plate-shaped light guide is configured to totally reflect light from the light source by the plurality of reflective elements. The plurality of reflective elements are arranged in a state of being continuously arranged along a line extending in a direction, and are arranged in a plurality of rows on the line. The plate-shaped light guide is configured to allow the light from the light source to reach a position of the line from a first direction. Each of the reflective elements has a substantially concave curved surface shape, and as compared to reflective elements constituting a first row, reflective elements constituting a second row is formed at a deeper position from the first plate surface.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: May 24, 2022
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventor: Akihito Horikawa
  • Patent number: 11339941
    Abstract: Provided are a surface light emitting module for an LED light source, a vehicle lamp using the same, and a method of assembling the same, so as to solve the technical problem that the existing LED light emitting module cannot achieve uniform lighting and cannot be used for the high brightness function as a brake lamp, a turn signal lamp, or the like. The surface light emitting module for an LED light source described in the present disclosure comprises: a back plate, a light guide plate, and an optical film disposed sequentially from back to front; and specifically, an LED light source and a PCB are disposed on a side of the light guide plate, and a plurality of concave/convex microstructures are disposed at intervals on the light guide plate.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: May 24, 2022
    Assignee: HASCO VISION TECHNOLOGY CO., LTD.
    Inventor: Xiyuan Liu
  • Patent number: 11327337
    Abstract: A mode-switchable backlight and mode-switchable display employ a first planar backlight to emit broad-angle emitted light during a first mode and a second planar backlight to emit directional emitted light during a second mode. The second planar backlight includes a plate light guide and an array of multibeam elements configured to scatter out guided light from the light guide during a second mode as the directional emitted light including a plurality of directional light beams having principal angular directions corresponding to view directions of a multiview image. The mode-switchable display further includes a light valve array configured to modulate the broad-angle emitted light to provide a two-dimensional image during the first mode and to modulate the directional emitted light to provide a multiview image during the second mode.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: May 10, 2022
    Assignee: LEIA INC.
    Inventor: David A. Fattal
  • Patent number: 11302222
    Abstract: A display device is provided and includes a supporting substrate, a first flexible substrate, an oxide layer, a first insulating layer, a light emitting unit, and a protective layer. The first flexible substrate is disposed on the supporting substrate, and the oxide layer is disposed on the first flexible substrate. The first insulating layer is disposed on the oxide layer, and in a cross-sectional view, the first insulating layer has at least one opening. The light emitting unit is disposed on the first insulating layer, the protective layer is disposed on the light emitting unit, and at least a portion of the protective layer is disposed in the at least one opening.
    Type: Grant
    Filed: July 24, 2020
    Date of Patent: April 12, 2022
    Assignee: InnoLux Corporation
    Inventors: Hsiao-Lang Lin, Tsung-Han Tsai
  • Patent number: 11300271
    Abstract: The invention provides a light source module including a light guide plate and light emitting elements. The light guide plate includes a main plate body and a plurality of optical microstructures. The main plate body has a light emitting surface and a back surface opposite to each other, and a light incident surface connected therebetween. The optical microstructures are formed on the back surface. Each optical microstructure includes at least two sections connected to each other, each section having a reflective surface. The light emitting elements are disposed on the light incident surface, and light emitted by each of the light emitting elements is reflected by at least some of the reflective surfaces and transmitted to the light emitting surface. In any optical microstructure, the reflective surfaces are not parallel to each other.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: April 12, 2022
    Assignee: CHAMP VISION DISPLAY INC.
    Inventors: Hsin-Hung Lee, Chin-Ku Liu, Chung-Hao Wu, Kun-Hsien Lee
  • Patent number: 11287558
    Abstract: A luminaire includes a housing, a light diffusion panel, a reflective surface, and a plurality of light sources. The light diffusion panel includes a light source aperture, an edge surface bounding the light source aperture, and an emission surface. The emission surface includes first and second emission surface sections. The second emission surface section is disposed on an opposite side of the light source aperture from the first emission surface section. The reflective surface is disposed on a side of the light diffusion panel opposite the emission surface. The light sources project light into the light diffusion panel through the edge surface. The light sources include first and second light sources. The first light source projects light into the light diffusion panel and through the first emission surface section. The second light source projects light into the light diffusion panel and through the second emission surface section.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: March 29, 2022
    Assignee: Hubbell Lighting, Inc.
    Inventors: Christopher Bailey, Ezekial Thomas Hill, III