Display Backlight Patents (Class 362/97.1)
  • Patent number: 11561428
    Abstract: An optical device capable of varying transmittance, such that can be used for various applications such as eyewear, for example, sunglasses or AR (augmented reality) or VR (virtual reality) eyewear, an outer wall of a building or a sunroof for a vehicle.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: January 24, 2023
    Inventors: Byoung Kun Jeon, Moon Soo Park, Seong Min Lee, Ji Hoon Park
  • Patent number: 11538967
    Abstract: Disclosed is a display device. The display device includes: a light transmissive plate including a first front surface, a rear surface facing the first front surface, and a hole positioned behind the first front surface and connected to the rear surface; and a display film attached to the rear surface of the plate, in which the display film includes a light transmissive substrate having a second front surface attached to the plate, an electrode layer formed on the second front surface, and a light source electrically connected to the electrode layer, and the light source is positioned in the hole.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: December 27, 2022
    Assignee: LG ELECTRONICS INC.
    Inventors: Daewoon Hong, Sangtae Park, Myeongwook Bae, Jeongsik Choi
  • Patent number: 11538966
    Abstract: A method of manufacturing a light emitting device, the method includes: preparing an intermediate structure including a supporter, a plurality of light emitting elements arranged on the supporter, a covering layer arranged on the supporter and surrounding the light emitting elements, and wiring electrodes each arranged on and straddling the covering layer and a corresponding one of the light emitting elements: preparing a board including light-reflective resin arranged on a surface of the board; pressing the intermediate structure against the light-reflective resin arranged on the board, with the wiring electrodes facing the light-reflective resin; curing the light-reflective resin to form a light-reflective resin layer; and removing the supporter.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: December 27, 2022
    Assignee: NICHIA CORPORATION
    Inventor: Katsuyoshi Kadan
  • Patent number: 11520146
    Abstract: An image in a predetermined hue is displayed at a display surface, and is emitted as image light. The image light is guided to a display position by an optical system, and is deflected by a diffraction optical element. The emitted image light includes light emitted from a first position of the display surface and light emitted from a second position of the display surface. A deflection angle at which the light emitted from the first position is diffracted by the diffraction optical element is larger than a deflection angle at which the light emitted from the second position is diffracted by the diffraction optical element. Of the image light in a wavelength range expressing the hue, a wavelength peak of the light emitted from the first position is present on a long wavelength side with respect to a wavelength peak of the light emitted from the second position.
    Type: Grant
    Filed: May 12, 2020
    Date of Patent: December 6, 2022
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Toshiyuki Noguchi
  • Patent number: 11508702
    Abstract: An integrated control LED display system, comprising a number of module screens (100) which are assembled together to form a large display screen, each of the module screens (100) comprises several unit screens (200), a splicing frame (300) and a control box (400), several unit screens (200) are assembled in the splicing frame (300) to form a said module screen (100), the control box (400) is arranged on the back of the module screen (100), and the control box (400) can simultaneously control the work mode of the unit screens (200).
    Type: Grant
    Filed: July 4, 2020
    Date of Patent: November 22, 2022
    Assignee: Shenzhen Chip Optech Co. Ltd.
    Inventor: XiaoGang Wu
  • Patent number: 11480828
    Abstract: A backlight module includes a backplate, a light source, a diffuser plate, an optical film and at least one frame. The backplate includes a base plate, a sidewall and a bent portion. The sidewall is connected to the base plate and the bent portion. The bent portion has a first surface and a second surface. The first surface faces the base plate. The second surface is opposite to the first surface. The light source is disposed on the base plate. The diffuser plate is disposed on the second surface of the bent portion. The optical film is stacked on the diffuser plate and has a third surface away from the bent portion. The frame covers the sidewall of the backplate and covers a peripheral portion of the third surface of the optical film.
    Type: Grant
    Filed: March 23, 2022
    Date of Patent: October 25, 2022
    Assignee: AmTRAN Technology Co., Ltd.
    Inventors: Chih Kuei Wang, Hsien Kai Lin
  • Patent number: 11473769
    Abstract: Illuminated top furniture including an illuminated top portion and a support portion. The illuminated top portion includes a support layer, at least one light source, a light diffusion layer and an upper protective layer. The at least one light source is mounted to the support layer. The light diffusion layer is positioned on a side of the at least one light source that is opposite the support layer. The upper protective layer is positioned on a side of the light diffusion layer that is opposite the support layer. At least a portion of the upper protective layer is transparent such that light emitted by the at least one light source is visible through the upper protective layer while the light diffusion layer obscures the at least one light source so that the at least one light source is not visible through the upper protective layer. The support portion is attached to the illuminated top portion to support the illuminated top portion above a ground surface.
    Type: Grant
    Filed: November 2, 2021
    Date of Patent: October 18, 2022
    Assignee: Ace Bayou Corp.
    Inventor: Bryan Howard
  • Patent number: 11450245
    Abstract: A display module (102) comprises light-emitting elements (106) coupled to one or more mounting structures and grouped into a pixels in a pixel array on a display face to display textual, graphical, or video information, with each pixel comprising a grouping of one or more light-emitting elements. A face cover (100) is mounted to the mounting structure and is positioned in front of at least a portion of the display face. The face cover comprises a plurality of moguls (110) arranged in a mogul array with each mogul positioned in front of and proximate to a corresponding one of the pixels so that the mogul covers at least a portion of the corresponding pixel, and one or more light-emitting openings (112) in each mogul, each positioned relative to one or more corresponding light-emitting element of the pixel to permit light emitted from the corresponding one or more light-emitting elements to pass through the mogul.
    Type: Grant
    Filed: April 2, 2018
    Date of Patent: September 20, 2022
    Assignee: Daktronics, Inc.
    Inventor: Kenneth Parker Lawley
  • Patent number: 11428986
    Abstract: A direct-type light source module including N-stage light sources and an optical sheet is provided. The optical sheet is disposed above the N-stage light sources, and an optical distance between the i-th-stage light source and the optical sheet is smaller than an optical distance between the i+1-th-stage light source and the optical sheet, where 1?i<N, and N is a positive integer greater than 1. A display device is also provided.
    Type: Grant
    Filed: August 2, 2021
    Date of Patent: August 30, 2022
    Assignee: Wistron Corporation
    Inventors: Han-Jen Liang, Lei-Ken Hung, Ching-Hsuan Tsai, Wei-Chi Lin, Chih-Chou Chou
  • Patent number: 11422408
    Abstract: A light emitting device comprises a light emitting substrate with a plurality of light emitting elements, and a luminance equalizer sheet provided opposite the light emitting substrate, having a plurality of through holes for transmitting light irradiated from the light emitting elements and having a linear expansion coefficient different from a linear expansion coefficient of the light emitting substrate, the light emitting substrate and the luminance equalizer sheet being positioned relative to each other at a predetermined position, at least one with a larger linear expansion coefficient among the light emitting substrate and the luminance equalizer sheet having a curved shape, and a degree of curvature of the one with the larger linear expansion coefficient being larger than a degree of curvature of one with a smaller linear expansion coefficient among the light emitting substrate and the luminance equalizer sheet.
    Type: Grant
    Filed: May 28, 2021
    Date of Patent: August 23, 2022
    Assignee: FUNAI ELECTRIC CO., LTD.
    Inventors: Yoshimasa Imahori, Tatsuya Ito
  • Patent number: 11416033
    Abstract: A foldable display device is provided, which includes a first middle frame and a second middle frame for supporting a flexible display panel. A first surface of a first planar support member of the first middle frame that faces the display panel extends toward a second planar support member, and a second surface of the second planar support member of the second middle frame that faces the display panel extends toward the first planar support member. Accordingly, the distance between the first surface of the first planar support member and the second surface of the second planar support member is reduced. Therefore, when the display panel expands, the bending region of the display panel can be effectively supported by the first planar support member and the second planar support member. In this way, the bending region can have better flatness when the display panel expands.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: August 16, 2022
    Inventors: Yongzhen Jia, Shanghung Yeh
  • Patent number: 11391988
    Abstract: A light source module includes a back plate and light-emitting units. The back plate includes a bottom plate and a sidewall. An included angle is formed between an outer side surface of the sidewall and a horizontal plane where the bottom plate is located, and the included angle is an acute angle. An optical distance is defined between a top end of the sidewall and the horizontal plane. The light-emitting units are arranged in the back plate. The light-emitting units which are closest to the sidewall are defined as target light-emitting units, and each of the target light-emitting units has a radiation angle, and each of the target light-emitting units is separated from the sidewall by a distance. The first horizontal distance is determined by a tangent function of a complementary angle of the radiation angle, the second horizontal distance is determined by a tangent function of the included angle.
    Type: Grant
    Filed: April 20, 2021
    Date of Patent: July 19, 2022
    Assignees: Radiant Opto-Electronics (Suzhou) Co., Ltd., Radiant Opto-Electronics Corporation
    Inventors: Chang-Yao Chen, Chih-Chiang Chang, Ya-Yin Tsai
  • Patent number: 11387292
    Abstract: An electronic device is provided. The electronic device includes: a housing; a light-permeable display screen received in the housing and including a display area and a black matrix area surrounding the display area; an emitter received in the housing, arranged between the light-permeable display screen and the housing, opposed to the black matrix area, and configured to emit an infrared light through the black matrix area; and a receiver received in the housing, arranged between the light-permeable display screen and the housing, opposed to the black matrix area, and configured to receive the infrared light through the black matrix area.
    Type: Grant
    Filed: August 16, 2020
    Date of Patent: July 12, 2022
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventor: Jie Li
  • Patent number: 11372286
    Abstract: A light source device includes a plurality of light sources arranged in a matrix, a substrate, and a reflective member. The reflective member includes first walls defining a first region entirely surrounded by the first walls in a plan view, and second walls located on an outer side of the first walls, the second walls defining a second region having an opening facing outside of the reflective member and a third region. An area of the second region is greater than an area of the third region in the plan view. The light sources are disposed respectively in the first region and in the second region while none of the light sources is disposed in the third region.
    Type: Grant
    Filed: February 10, 2021
    Date of Patent: June 28, 2022
    Assignee: NICHIA CORPORATION
    Inventors: Toshiyuki Hashimoto, Shimpei Sasaoka
  • Patent number: 11340650
    Abstract: A display apparatus with improved assembility, productivity and quality. The display apparatus includes: a display panel; a rear chassis covering a rear surface of the display panel, and the rear chassis including a coupling protrusion protruding toward the display panel; a reflective sheet including a fixing hole in which the coupling protrusion is inserted, and rested on a front surface of the rear chassis when the coupling protrusion is inserted in the fixing hole; and a substrate coupled to the rear chassis in a front direction of the reflective sheet such that the reflective sheet is prevented from being separated from the rear chassis, wherein a plurality of light sources configured to irradiate light toward the display panel are mounted on the substrate.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: May 24, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sun-Jin Kim, Kyoungyoon Lee, Heongseog Lee
  • Patent number: 11330726
    Abstract: An electronic device is provided. The electronic device includes: a panel, a first cushioning component, and a second cushioning component. The panel includes a bottom surface, a first corner and a second corner, and the bottom surface connects between the first corner and the second corner. The first cushioning component supports the first corner of the panel. The second cushioning component supports the second corner of the panel. The Young's modulus of the first cushioning component and the Young's modulus of the second cushioning component are ranged from 500 MPa to 1500 MPa.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: May 10, 2022
    Inventors: Yujun Chiu, Lavender Cheng
  • Patent number: 11327351
    Abstract: The invention provides a display device, including a backlight module, a plastic frame, and a sheet metal. The plastic frame is disposed on a side of the backlight module, and the plastic frame has a slot. The sheet metal includes a bottom portion and a bent portion perpendicular to the bottom portion, and the bent portion is bent to a side surface of the backlight module and correspondingly engaged in the slot of the plastic frame.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: May 10, 2022
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Zheng Zhou
  • Patent number: 11313533
    Abstract: A light flux controlling member includes an incidence surface, a reflection surface, an annular groove and an emission surface. The annular groove is disposed so as not to intersect an optical path of light incident on the incidence surface, reflected by the reflection surface, and reaching the emission surface. The first annular surface is formed so that its distance from the central axis increases, from the back side to the front side, and refracts, toward the front surface, light emitted from the light emitting center of the light emitting element, and directly reaching the first annular surface. The second annular surface is formed so that its distance from the central axis increases, from the back side to the front side, and refracts, toward the front side, light emitted from the light emitting element, incident on the incidence surface, and directly reaching the second annular surface.
    Type: Grant
    Filed: March 17, 2021
    Date of Patent: April 26, 2022
    Assignee: Enplas Corporation
    Inventor: Takuro Momoi
  • Patent number: 11314012
    Abstract: A light source useful for architectural lighting, general lighting, street lighting, or other lighting applications includes a plurality of light emitting diodes, with at least some light emitting diodes sized between 50 microns and 500 microns. A plurality of micro-optics sized less than 1 millimeter are positioned over at least some of the plurality of light emitting diodes. Each combination of light emitting diode and associated micro-optic is positioned within a Rayleigh distance to each other, sufficient to both present a substantially uniform visual appearance and provide a substantially uniform light beam. In some embodiments the height of the light emitting diodes, their supporting substrate and electrical traces, and associated optics is less than 5 millimeters.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: April 26, 2022
    Assignee: Lumileds LLC
    Inventors: Sudhir Subramanya, Willem Sillevis-Smitt, Frederic Diana, Charles Schrama, Alan McReynolds, Yifeng Qiu
  • Patent number: 11306893
    Abstract: A display device includes a display panel and a backlight module. The backlight module includes a plurality of light sources arranged on a bottom plate, a plurality of lenses disposed on a light emission surface of the light sources, and a diffuser board is on the lens. The lens includes a lens body disposed on the light emission surface of the light source, and a supporting portion disposed between the lens body and the diffuser board. The lens body is configured to diffuse light from the light source, with the supporting portion configured to support the diffuser board.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: April 19, 2022
    Assignee: Huizhou China Star Optoelectronics Technology Co., Ltd.
    Inventors: Zanjia Su, Gang Yu, Yongyuan Qiu, Jianyu Chang, Linlin Fu, Zhuping Luo
  • Patent number: 11294223
    Abstract: The purpose of the present invention is to realize a lighting device of thin, low power consumption and small light distribution angle. The present invention takes the following structure to realize the above task: A lighting device comprising: a disc shaped light guide, having a main surface and a rear surface, including a first hole at a center, a disc shaped reflection sheet, disposed at the rear surface side of the light guide, including a second hole at a center, a prism sheet, disposed at the main surface side of the light guide, including a concentric first prism array, wherein a reflection mirror is set in the first hole of the light guide at the side near to the prism sheet, an LED is set opposing to the reflection mirror.
    Type: Grant
    Filed: March 31, 2021
    Date of Patent: April 5, 2022
    Assignee: Japan Display Inc.
    Inventors: Makoto Hasegawa, Nobuyuki Suzuki, Masafumi Okada
  • Patent number: 11281036
    Abstract: A display device includes a display panel, a backlight unit disposed under the display panel, an accommodation part that accommodates the backlight unit, a flexible circuit film connected to a side of the display panel, and bent along an outer surface of the accommodation part in an outside of the accommodation part to extend below the accommodation part to form a bending part of the flexible circuit film, a driving chip mounted on the flexible circuit film, and a shield cover disposed in contact with the side of the display panel, and outward from the bending part, the shield cover having a groove defined in a surface facing the bending part.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: March 22, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: KwangSun You, Hyeonseon Jeong, JunHee Son, JungGil Oh, YoungGyu Jung
  • Patent number: 11275270
    Abstract: A surface light source device includes a housing; one or more substrates disposed in the housing, each of the one or more substrates having a substantially rectangular shape; a plurality of light-emitting devices disposed on the one or more substrates; and a light diffusion plate disposed over the plurality of light-emitting devices. Each of the light-emitting devices includes a light-emitting element and a light flux controlling member. The plurality of light-emitting devices is disposed on two or more first virtual lines that are parallel to each other and are parallel to one side of each of the one or more substrates. A light-emitting surface of the light-emitting element has a substantially rectangular shape in plan view. Of angles between each side of the light-emitting surface of the light-emitting element and each of the two or more first virtual lines, a smallest angle is 25 degrees to 45 degrees.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: March 15, 2022
    Assignee: ENPLAS CORPORATION
    Inventor: Takuro Momoi
  • Patent number: 11269189
    Abstract: An image display device includes an image light generation device configured to generate image light, and a deflection member configured to deflect the image light to form an exit pupil, in which the image light generation device includes a first light source unit configured to emit first light, a second light source unit configured to emit second light within a same frequency band as the first light and having a wavelength band different from a wavelength band of the first light, and a combining optical member configured to at least partially superimpose the first light and the second light, the deflection member includes a first diffraction member corresponding to the wavelength band of the first light and a second diffraction member corresponding to the wavelength band of the second light, and the first diffraction member and the second diffraction member overlap when viewed from the exit pupil.
    Type: Grant
    Filed: November 25, 2020
    Date of Patent: March 8, 2022
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Mitsutaka Ide, Masatoshi Yonekubo
  • Patent number: 11262617
    Abstract: Provided is a display apparatus including a display panel, a light-emitting assembly disposed behind the display panel and including a light-emitting diode (LED) configured to emit light in a rear direction, and a reflective assembly disposed behind the light-emitting assembly and configured to reflect light emitted from the light-emitting assembly toward the display panel, wherein the reflective assembly includes a first area corresponding to the LED, and a second area adjacent to the first area, wherein at least one of a diffusion amount and a reflection amount of light exiting the second area is different from a corresponding one of a diffusion amount and a reflection amount of light exiting the first area.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: March 1, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chunsoon Park, Seokwoo Yong, Youngchol Lee, Jonghoon Jung, Junsung Choi
  • Patent number: 11256139
    Abstract: A support pin supporting at least one optical component in an optical cavity includes a supporting base and a supporting section connecting the supporting base. The supporting section is made of a light-transmitting material. A plurality of grooves are integrally formed on the supporting section. The grooves reflect or refract part of incident light transmitted inside the supporting section diffusely and do not penetrate the supporting section. In addition, a backlight module and a display device with the support pins are also disclosed herein.
    Type: Grant
    Filed: December 14, 2020
    Date of Patent: February 22, 2022
    Assignee: AmTRAN Technology Co., Ltd.
    Inventor: Tsung-Ying Tsai
  • Patent number: 11256896
    Abstract: An portable communication device may include a display, a back panel that is disposed below the display, a support member that is disposed below the back panel, a sensor that is disposed such that at least a portion of the sensor faces a back surface of the display through a sensor hole formed at the support member, a first adhesive member that adheres at least a portion of the sensor on one side of the support member, and a second adhesive member that is disposed between the sensor (or a sensor structure including the sensor) and the sensor hole.
    Type: Grant
    Filed: September 23, 2020
    Date of Patent: February 22, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyunwoo Kim, Jihoon Park, Jihun Heo
  • Patent number: 11251333
    Abstract: Provided is a display apparatus including a chassis and a display panel installed on the chassis. The display panel includes a substrate and an inorganic light emitting element. The chassis includes a base plate including a mounting groove, and a bracket coupled to and received in the mounting groove. A rear surface of the substrate is attached to the bracket through an adhesive member.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: February 15, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byung Chul Kim, Dong Yeob Lee, Seung Ryong Han
  • Patent number: 11244933
    Abstract: The present invention relates to a modularized spliced LED display screen including a plurality of unit screens. When assembling, a certain number of the unit screens are assembled in a splicing frame to form a module screen. A number of the said module screens are assembled horizontally to form a large display screen. The present invention forms a module screen by a plurality of unit screens of the same structure, and then assembles a plurality of module screens horizontally to form a large display screen, and the overall assembly method is simple, and is easy to assemble and disassemble.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: February 8, 2022
    Assignee: Shenzhen Chip Optech Co. Ltd.
    Inventor: XiaoGang Wu
  • Patent number: 11237428
    Abstract: A display apparatus includes a liquid crystal panel; a light source module configured to provide light to the liquid crystal panel; a printed circuit board (PCB) on which the light source module is mounted; and at least one chassis accommodating the liquid crystal panel and the PCB. The light source module includes: a substrate; a reflector positioned on the substrate, and including a curved surface having a shape resulting from rotating a portion of a parabola around a directrix of the parabola, the directrix perpendicular to the substrate; and a plurality of light sources mounted on the substrate along focal points of the parabola of the reflector.
    Type: Grant
    Filed: June 19, 2020
    Date of Patent: February 1, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Daesik Kim, Farid Mukhtarov, Yasuhiro Nishida
  • Patent number: 11215746
    Abstract: A dual display device includes a light source module, a first display panel and a second display panel. The light source module includes a light guide plate, a first prism sheet, a second prism sheet, a color conversion film, and a light source. The light guide plate has a first light exit surface, a second light exit surface and a light incident surface. The first light exit surface has a plurality of first microstructures. The first prism sheet is disposed beside the first light exit surface. The second prism sheet is disposed beside the second light exit surface. The color conversion film is disposed at least one of between the first prism sheet and the first light exit surface and between the second prism sheet and the second light exit surface. The dual display device of the invention has the advantages of thinner thickness and lighter weight.
    Type: Grant
    Filed: March 16, 2021
    Date of Patent: January 4, 2022
    Assignee: Coretronic Corporation
    Inventors: Hui-Chuan Chen, Yu-Fan Chen
  • Patent number: 11212379
    Abstract: An electronic device may include an assembly that enables varying a visible portion of a display by extending and retracting a bendable portion of the display. The extending and retracting of the bendable display is facilitated by a first assembly on which a substantially planar visible portion of the display is disposed and a second assembly slidably attached to the first assembly. A space is defined by the first and second assemblies in which a bent portion of the display is housed. When the first assembly is extended (e.g., opened) with respect to the second assembly, at least a portion of the bent portion of the display is extended so as to be visible, and when the first assembly is closed (e.g., retracted) with respect to the second assembly, the extended bent portion of the display is retracted into the space between the first assembly and the second assembly, and is no longer visible. Various constructions of the first and second assemblies and corresponding structures are provided.
    Type: Grant
    Filed: December 31, 2020
    Date of Patent: December 28, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Moohyun Baek, Dongryul Shin, Shinho Yoon, Youngsoo Chun, Byounguk Yoon, Jiwoo Lee
  • Patent number: 11210989
    Abstract: Disclosed are an array substrate, a display panel and a display device. The display panel includes a plurality of sub-pixel regions; each of the sub-pixel regions includes a pixel driving circuit, a white electroluminescent device connected with the pixel driving circuit and a color resist layer corresponding to the sub-pixel region; the plurality of sub-pixel regions include a first-color sub-pixel region, a second-color sub-pixel region and a third-color sub-pixel region; a width-to-length ratio of a channel region of the driving transistor in the first-color sub-pixel region is greater than a width-to-length ratio of a channel region of the driving transistor in the second-color sub-pixel region, and the width-to-length ratio of the channel region of the driving transistor in the second-color sub-pixel region is greater than a width-to-length ratio of a channel region of the driving transistor in the third-color sub-pixel region.
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: December 28, 2021
    Assignees: Beijing BOE Technology Development Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Chen Xu, Xueguang Hao, Yong Qiao, Xinyin Wu
  • Patent number: 11211580
    Abstract: A display device includes an organic insulating layer, a first inorganic insulating layer, and a second inorganic insulating layer arranged in a first region and a second region, a plurality of pixels arranged in the first region, a protective film arranged in the second region and in contact with an upper surface of the second inorganic insulating layer in the second region, and a groove portion is provided in the organic insulating layer in the second region. A side surface and a bottom surface of the groove portion is covered by the first inorganic insulating layer and the second inorganic insulating layer. The protective film is overlapped with an upper surface of the organic insulating layer and an upper end portion and a part of the side surface of the groove portion.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: December 28, 2021
    Assignee: Japan Display Inc.
    Inventor: Nobuto Managaki
  • Patent number: 11201268
    Abstract: Provided are a light source circuit unit that improves light extraction efficiency, as well as an illuminator and a display that include such a light source circuit unit. The light source circuit unit includes: a circuit substrate having a wiring pattern on a surface thereof, the wiring pattern having light reflectivity, a circular pedestal provided on the circuit substrate, a water-repelling region provided at least from a peripheral edge portion of the pedestal to a part of a side face of the pedestal, and one or two or more light-emitting device chips mounted on the pedestal, and driven by a current that flows through the wiring pattern.
    Type: Grant
    Filed: July 18, 2019
    Date of Patent: December 14, 2021
    Assignee: Saturn Licensing LLC
    Inventors: Koichi Yamamoto, Takehito Hirose, Shigeru Teshigahara
  • Patent number: 11194194
    Abstract: An optical device is disclosed herein. In some embodiments, an optical device includes an active liquid crystal element, wherein the active liquid crystal element comprises two base layers, an active liquid crystal layer disposed between the two base layers, wherein the active liquid crystal layer includes a liquid crystal compound and is capable of switching between first and second oriented states, and a hard coating layer formed on one of the base layers, wherein the hard coating layer is formed on an active liquid crystal layer-facing surface or an opposite surface of the base layer, and wherein the hard coating layer having a thickness of 2 ?m or more. The optical device is capable of varying transmittance, and can be used for various applications such as eyewear, for example, sunglasses or AR (augmented reality) or VR (virtual reality) eyewear, an outer wall of a building or a vehicle sunroof.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: December 7, 2021
    Inventors: Jung Woon Kim, Su Young Ryu, Tae Yong Kim, Doo Young Huh, Byoung Kun Jeon, Sang Uk Ryu
  • Patent number: 11181771
    Abstract: A display device including a backlight plate, a first panel and a second panel is provided. The backlight plate includes a plurality of light emission modules. The first panel is disposed on the backlight plate. The second panel is disposed on the first panel. Each of the plurality of light emission modules includes at least one luminescent element. A first light emission module of the plurality of light emission modules corresponds to a region of the first panel including a plurality of first pixels. Responsive to the at least one luminescent element of the first light emission module being activated, the at least one luminescent element of a second light emission module of the plurality of light emission modules is activated. The second light emission module is adjacent to the first light emission module.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: November 23, 2021
    Assignee: INNOLUX CORPORATION
    Inventors: Ming-Chia Shih, Cheng-Jen Chu, Chung-Kuang Wei
  • Patent number: 11174430
    Abstract: A fluoride fluorescent material includes a composition including K, Ge, Mn4+, and F and having a molar ratio of K of 2, a total molar ratio of Ge and Mn4+ of 1, a molar ratio of Mn4+ of more than 0 and less than 0.2, and a molar ratio of F of 6 in 1 mol of the composition, has a light emission spectrum having a first light emission peak in a range of 615 nm or more and less than 625 nm having a full width at half maximum of 6 nm or less, and a second light emission peak in a range of 625 nm or more and less than 635 nm, and has an internal quantum of 85% or more efficiency under excitation of light having a wavelength of 450 nm.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: November 16, 2021
    Assignee: NICHIA CORPORATION
    Inventor: Tomokazu Yoshida
  • Patent number: 11133294
    Abstract: A transparent display panel with a light-transmitting substrate, a plurality of top-emitting micro light emitting diodes, a plurality of bottom-emitting micro light emitting diodes, and a light shielding layer. The light transmissive substrate has a surface. These top-emitting micro light emitting diodes and these bottom-emitting micro light emitting diodes are disposed on the surface of the light transmissive substrate. The bottom-emitting micro light emitting diodes has an epitaxial structure and a light shielding member, the epitaxial structure has a pair of upper and lower surfaces on the opposite sides, the lower surface faces toward the light transmissive substrate, and the light shielding member is disposed on the upper surface to shield the light emitted by the bottom-emitting micro light emitting diodes towards the upper surface.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: September 28, 2021
    Assignee: PLAYNITRIDE INC.
    Inventors: Pei-Hsin Chen, Yi-Chun Shih, Yi-Ching Chen, Ying-Tsang Liu, Yu-Chu Li
  • Patent number: 11112652
    Abstract: In an embodiment, a backlight unit includes a light-emitting device and lower reflector on a substrate. The lower reflector has a hole that accommodates and exposes the light-emitting device. The lower reflector may have a height greater than a height of the light-emitting device. The backlight unit may include a color resin in the holes and on the light-emitting device. The backlight unit may include a light path modulator above the light emitting device and on the color resin. The light path modulator may have a different refractive index than a refractive index of the color resin to reflect the emitted light at a boundary of the light path modulator and the color resin towards the lower reflector.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: September 7, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: Donghwi Kim, KiSeong Kim, HyeokJoon Yoon, SeungJu Gwon
  • Patent number: 11061275
    Abstract: According to one embodiment, an illumination device includes a light source module, and a reflector opposed to the light source module. The reflector includes a plurality of incidence openings on which light from the light source module is made incident, a plurality of emission openings opposed to the incidence openings, a plurality of reflective surfaces extending from the incidence openings to the emission openings, respectively, and reflective films formed on the reflective surfaces. The reflector includes a plurality of blocks, and the blocks are bonded to each other to form the reflector.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: July 13, 2021
    Assignee: Japan Display Inc.
    Inventor: Masayuki Mifune
  • Patent number: 11061274
    Abstract: The present invention provides a backlight module. The backlight module includes a light source, an optical film, a diffusion plate, a back plate, and LED strips disposed on the back plate. The back plate forms a receiving cavity and includes at least two coupled LED strips. The light source, the diffusion plate, and the optical film are arranged in the receiving cavity. Wherein, LED lamps which are at an end of the LED strips and adjacent to a coupling position have an illuminating inner diameter on the diffusion plate, and the illuminating inner diameter is greater than an edge length to the coupling position, which improves technical problems of poor backlight mixing in backlight modules.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: July 13, 2021
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Fancheng Liu
  • Patent number: 11048121
    Abstract: A lighting device includes a light source emitting primary light rays that are included in a certain wavelength region, a wavelength conversion member, and a reflection layer. The wavelength conversion member has a function of converting some of the primary light rays that have passed through the wavelength conversion member into secondary light rays that are included in another wavelength region that is different from the certain wavelength region. The reflection layer has a function of reflecting light rays that reach a first surface on an opposite side from the light source. The reflection layer includes a light transmission section in a portion thereof, and light rays that reach a second surface on a light source side pass through the light transmission section to the first surface at a higher ratio than other section of the reflection layer.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: June 29, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Hidekazu Miyata
  • Patent number: 11038004
    Abstract: A window member includes a base panel which is divided into a transmission area and a bezel area in a plan view and has a front surface and a rear surface disposed opposite to the front surface in a thickness direction, and in which a recessed portion, which is recessed from the rear surface in the thickness direction, is defined, a bezel layer disposed on the rear surface of the base panel to define the bezel area, and a light shielding pattern disposed in the recessed portion to cover an inner surface of the recessed portion. Here, the light shielding pattern is disposed on the transmission area and spaced apart from the bezel layer.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: June 15, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventor: Sungyong Kwon
  • Patent number: 11016343
    Abstract: Provided are a direct type backlight module and a liquid crystal display device. The direct type backlight module comprises: a back frame, a backlight source disposed in the back frame and an optical frame disposed relatively spaced from the backlight source; a top edge and two side edges of the back frame are respectively and fixedly connected with a top edge and two side edges of the optical film, and a bottom edge of the back frame is elastically connected with a bottom edge of the optical film. By elastically connecting the bottom edge of the back frame and the bottom edge of the optical film, the optical film is flattened by an elastic force generated by the elastic connection to avoid the collapse of the optical film. Thus, the diffuser can be eliminated and the thickness of the backlight module can be decreased to lower the production cost.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: May 25, 2021
    Assignee: HUIZHOU CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Gang Yu, Dehua Li
  • Patent number: 11019739
    Abstract: Methods and apparatus provide for an improved visual and optionally tactile features on a visible element of an article, such as a consumer electronic device (e.g., a mobile electronic device, a mobile phone, a smartphone, a tablet, a phablet, a notebook computer, a laptop, etc.).
    Type: Grant
    Filed: May 7, 2019
    Date of Patent: May 25, 2021
    Assignee: Corning Incorporated
    Inventors: Matthew John Dejneka, Matthew Wade Fenton, Yuhui Jin, Timothy James Kiczenski
  • Patent number: 11003020
    Abstract: A light source package, a backlight unit, and a display device are provided. A light source package includes: a frame including a plurality of first grooves spaced apart from each other, a plurality of light sources, each in a respective one of the plurality of first grooves, a plurality of first diffuser layers respectively filling the plurality of first grooves and covering the plurality of light sources, and a second diffuser layer covering the plurality of first diffuser layers on the plurality of first grooves, wherein an uppermost end of the frame is higher than an upper surface of the second diffuser layer.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: May 11, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: JeYoung Moon, SangHo Han
  • Patent number: 10996387
    Abstract: An optical device and method of manufacturing the same are disclosed herein. In some embodiments, an optical device includes a first outer substrate and a second outer substrate disposed opposite to each other, a liquid crystal element disposed between the first and second outer substrates; and a plurality of adhesive films encapsulating the liquid crystal element, wherein the plurality of adhesive films comprises a curable adhesive film and a non-curable adhesive film. The optical device is capable of varying transmittance and reducing light loss while improving appearance defects. Such an optical device can be used for various applications such as eyewear, for example, sunglasses or augmented reality (AR) or virtual reality (VR) eyewear, an outer wall of a building or a sunroof for a vehicle.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: May 4, 2021
    Inventors: Seong Min Lee, Young Shin Lee, Byoung Kun Jeon, In Ju Mun
  • Patent number: 10996509
    Abstract: A backlight unit and a display device including the backlight unit are provided. A backlight unit includes a substrate, light sources on a surface of the substrate, and a light transmission adjustment layer on the surface of the substrate and spaced apart from the light sources in a thickness direction, wherein the light transmission adjustment layer includes a light reflection layer having openings disposed therein, and a light absorption layer containing a light absorption material that is disposed in the openings and absorbs light having predetermined wavelength bands.
    Type: Grant
    Filed: April 20, 2020
    Date of Patent: May 4, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ji Eun Nam, Young Min Park
  • Patent number: 10996752
    Abstract: A backlight device includes a first surface and a second surface that is opposite to the first surface. The backlight device is configured to emit light in a first optical band through the second surface toward a display panel of a head-mounted display (HMD). The display panel is configured to convert the light from the backlight device to image light. The backlight device is transparent to light in a second optical band that is different than the first optical band. An eye tracking system illuminates an eyebox with light in the second optical band. A camera assembly positioned adjacent to the first surface of the backlight device. The camera assembly is configured to capture images of the eye in the second optical band through the backlight device, the display panel. The eye tracking system determines eye tracking information based at least in part on the captured images.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: May 4, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Andrew John Ouderkirk, Jacques Gollier, Robin Sharma, Yusufu Njoni Bamaxam Sulai, Brian Wheelwright, Ying Geng, Alexander Sohn, Abbas Mehdi Kazmi