Diffuser Between Light Source And Liquid Crystal Patents (Class 349/64)
  • Patent number: 11428987
    Abstract: A pixel array may be illuminated with backlight illumination from a backlight. The backlight may include a two-dimensional array of light-emitting diodes, with each light-emitting diode being placed in a respective cell. Different light-emitting diodes may have unique brightness magnitudes based on the content of the given display frame. Driver integrated circuits may control one or more associated light-emitting diodes to have a desired brightness level. The driver integrated circuits may be formed in an active area of the backlight. The driver integrated circuits may be arranged in groups that are daisy chained together. A digital signal (that includes information such as addressing information) may be propagated through the group of driver integrated circuits. To manage thermal performance of the backlight, the backlight may include a thermally conductive layer and/or a heat sink structure. To increase the efficiency of the backlight, the backlight may include one or more reflective layers.
    Type: Grant
    Filed: March 16, 2021
    Date of Patent: August 30, 2022
    Assignee: Apple Inc.
    Inventors: Mingxia Gu, Jun Qi, Yanming Li, Jingdong Chen
  • Patent number: 11415814
    Abstract: A radiation-emitting device including a radiation source, an emission surface through which radiation from the radiation source passes during operation, wherein the emission surface includes a plurality of pixels, each pixel includes a plurality of subpixels, in plan view of the emission surface, each pixel forms a partial area of the emission surface and each subpixel forms a portion of such partial area, for each pixel, at least first subpixels are operable individually and independently of one another, and all subpixels of a pixel together make up at most 50% of the area of the pixel so that in simultaneous operation of all subpixels radiation is emitted via at most 50% of the area of the pixel.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: August 16, 2022
    Assignee: OSRAM OLED GmbH
    Inventors: Peter Brick, Hubert Halbritter, Mikko Perälä
  • Patent number: 11402692
    Abstract: A backlight module including a light guide plate, a light source, an optical film, a diffusion sheet, a first prism sheet and a second prism sheet is provided. The light guide plate has a light incident surface and a light emitting surface connected to each other. The light source is disposed on a side of the light incident surface. The optical film is overlapped with the light emitting surface and has a plurality of optical microstructures facing the light emitting surface. The diffusion sheet is disposed between the light guide plate and the optical film. The first prism sheet and the second prism sheet are overlapped with the optical film and are positioned on a side of the optical film being far away from the light guide plate. A display apparatus adopting the backlight module is also provided.
    Type: Grant
    Filed: June 2, 2021
    Date of Patent: August 2, 2022
    Assignee: Coretronic Corporation
    Inventors: Ping-Yeng Chen, Chung-Yang Fang, Jen-Wei Yu, Yang-Ching Lin, Yu-Fan Chen
  • Patent number: 11391869
    Abstract: According to one or more embodiments described herein, a coated article may comprise a transparent substrate and an optical coating. The transparent substrate may have a major surface, and the optical coating may be disposed on the major surface of the transparent substrate and form an air-side surface. The optical coating may comprise one or more layers of deposited material and one or more light-altering features which may reduce oscillations in the reflectance spectrum of the coated article. The coated article may exhibit a maximum hardness of about 8 GPa or greater, have an average photopic transmittance of about 50% or greater, and exhibit an angular color shift of less than about 10 from a reference illumination angle in a range of 0-10 degrees to an incident illumination angle in a range of 30-60 degrees relative to the air-side surface.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: July 19, 2022
    Assignee: Corning Incorporated
    Inventors: Robert Alan Bellman, Shandon Dee Hart, Karl William Koch, III
  • Patent number: 11360344
    Abstract: The present disclosure provides a liquid crystal display panel and a liquid crystal display device, including a first substrate; a second substrate; a liquid crystal layer, disposed between the first substrate and the second substrate; a reflective layer, disposed on a side of the first substrate facing the liquid crystal layer; and a color filter layer, disposed on the first substrate and covering the reflective layer. When light passes through the second substrate reaching the color filter layer, the reflective layer is configured to reflect the light, which is filtered by the color filter layer, to the second substrate. The liquid crystal display panel and the liquid crystal display device emit light without a light source, having a reduced loss rate of the light, an increased light utilization rate, and an increased light reflectivity.
    Type: Grant
    Filed: March 17, 2021
    Date of Patent: June 14, 2022
    Assignee: JRD COMMUNICATION (SHENZHEN) LTD.
    Inventors: Ke Lin, Yang Yu, Jitao Ma, Zhuwei Qiu
  • Patent number: 11340491
    Abstract: According to one embodiment, an electronic equipment includes a liquid crystal panel, and an illumination device illuminating the liquid crystal panel. The illumination device includes a first light guide including a first opening composed of a notch or a through hole and opposed to the liquid crystal panel, a first light source opposed to the first light guide, a second light guide provided in the first opening and opposed to the liquid crystal panel, and a second light source opposed to the second light guide.
    Type: Grant
    Filed: May 7, 2021
    Date of Patent: May 24, 2022
    Assignee: Japan Display Inc.
    Inventors: Makoto Hasegawa, Hiroyuki Shimokawa
  • Patent number: 11331886
    Abstract: A process comprises cold-forming a flat glass substrate into a non-planar shape using a die. The cold-formed glass substrate is bonded to a non-planar rigid support structure at a plurality of non-planar points using the die. Bonding methods include injection molding the non-planar rigid support structure, and direct bonding. An article is also provided, comprising a cold-formed glass substrate having opposing major surfaces and a curved shape, the opposing major surfaces comprising a surface stress that differ from one another. The cold-formed glass substrate is attached to a rigid support structure having the curved shape. The cold-formed glass substrate includes an open region not in direct contact with the non-planar rigid support structure, and the open region has a curved shape maintained by the non-planar rigid support structure.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: May 17, 2022
    Assignee: Corning Incorporated
    Inventors: Michael Timothy Brennan, Yawei Sun
  • Patent number: 11327214
    Abstract: A liquid crystal panel includes first substrate, a second substrate overlapping the first substrate, and a liquid crystal arranged between the substrates, the first including an extended portion which does not overlaps the second substrate. A backlight unit includes a light source mounted on a wiring board, a light guide plate having a light-receiving side surface and a front light-output surface, a light shielding adhesive tape disposed between the liquid crystal panel and the wiring board, and an optical sheet overlaping the front surface of the light guide plate. The light-shielding adhesive tape overlaps the wiring board and the optical sheet.
    Type: Grant
    Filed: February 24, 2021
    Date of Patent: May 10, 2022
    Assignee: Japan Display Inc.
    Inventors: Munenori Motooka, Nobuyuki Suzuki
  • Patent number: 11307460
    Abstract: A backlight module and a display device are provided in embodiments of the present disclosure.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: April 19, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiandong Meng, Wei Wang, Jifeng Tan, Xianqin Meng, Xiaochuan Chen
  • Patent number: 11294231
    Abstract: An illumination device includes: a substrate including a first face; at least one light source provided to the first face, and configured to emit light; and a wavelength conversion member facing the first face of the substrate, and configured to convert at least a portion of a wavelength, of the light emitted from the light source, into a wavelength having a color different from a similar color of the light emitted from the light source, wherein the substrate includes a first coloring portion constituting at least a portion of the substrate, including at least a portion of the first face, and configured to create the similar color.
    Type: Grant
    Filed: August 26, 2020
    Date of Patent: April 5, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Kentaroh Kamada
  • Patent number: 11287556
    Abstract: A backlight module and a display device, by disposing backlight concave sections on a light source lateral side of a back frame in the backlight module, the backlight concave sections and panel concave sections on a display panel correspond to one another. During assembling, part of sections of a flexible electric circuit board is bent to back of the backlight module through an edge of the panel concave section and the backlight concave sections to reduce a size of a bottom bezel of the display device, which improves the screen-to-body ratio of the display device.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: March 29, 2022
    Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd.
    Inventors: Peng Zhang, Chao Wang, Guanghui Liu, Yantao Lu
  • Patent number: 11287669
    Abstract: An integrated image display device includes a display unit, a lens array layer, and a baffle assembly. The baffle assembly includes a first baffle layer and a second baffle layer. The first baffle layer includes a plurality of first baffles, and a first transmission portion is formed between each two adjacent ones of the first baffles. The second baffle layer includes a plurality of second baffles, and a second transmission portion is formed between each two adjacent ones of the second baffles. Portions of the first transmission portions overlapped with the second transmission portions form a plurality of light transmission units. An un-reconstructed image displayed by the display surface can be reconstructed by the lens array layer, and be recombined into an integrated image to form a stereo image.
    Type: Grant
    Filed: April 13, 2020
    Date of Patent: March 29, 2022
    Assignee: Lixel Inc.
    Inventors: Chun-Hsiang Yang, Chih-Hung Ting, Kai-Chieh Chang, Jui-Yi Wu, Hsin-You Hou, Ting-Ru Lin
  • Patent number: 11285697
    Abstract: An optical laminate comprising an adherend including a curable resin, and a barrier film laminated on at least one surface of the adherend, wherein the barrier film comprises, on an outermost surface facing the adherend, a primer layer formed by curing a primer composition containing a silane coupling agent having a reactive functional group capable of reacting with the curable resin, other than an alkoxysilane group and a silanol group, and assuming that a thickness of the primer layer is D, a total content of the reactive functional group and the reactive functional group that has reacted with the curable resin per 1 m2×D of the primer layer is 1.5×10?6 mol or higher and 3.5×10?3 mol or lower.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: March 29, 2022
    Assignee: TOPPAN PRINTING CO., LTD.
    Inventors: Koji Murata, Masayoshi Suzuta
  • Patent number: 11275269
    Abstract: Assemblies for enhancing the optical quality of electronic images displayed at an electronic display layer are provided. At least one optical sheet is located adjacent to the electronic display layer within a housing. A number of tensioning subassemblies exert tensioning forces on the optical sheet. A first component of each tensioning subassembly is attached to a location along a perimeter of each optical sheet and a second component is connected to the first component and the housing.
    Type: Grant
    Filed: July 27, 2020
    Date of Patent: March 15, 2022
    Assignee: Manufacturing Resources International, Inc.
    Inventors: Mike Brown, Michael LeCave
  • Patent number: 11270985
    Abstract: Solid state lighting (SSL) devices and methods of manufacturing such devices. One embodiment of an SSL device comprises a support and an emitter array having a plurality of SSL emitters carried by the support. The emitter array has a central region and a peripheral region outward from the central region. Individual SSL emitters in both the central and the peripheral regions have a primary emission direction along which an intensity of light from the SSL emitters is highest, and the primary emission direction of the SSL emitters in the central region is at least substantially the same direction as the primary emission direction of the SSL emitters in the peripheral region. Additionally, a first coverage area ratio of the SSL emitters in the central region is different than a second coverage area ratio of the SSL emitters in the peripheral region.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: March 8, 2022
    Assignee: Micron Technology, Inc.
    Inventor: Zhang Xin
  • Patent number: 11264431
    Abstract: A display panel includes a display region that includes a normal display region and a transparent display region. The normal display region and the transparent display region are connected. The transparent display region includes multiple transparent areas and multiple pixels. The transparent areas have the same shape. For two adjacent transparent areas, a shape of one transparent area has a different placement angle than a shape of another transparent area.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: March 1, 2022
    Assignee: Wuhan Tianma Micro-Electronics Co., Ltd.
    Inventors: Guofeng Zhang, Junqiang Wang
  • Patent number: 11256010
    Abstract: A surface light source, comprising a waveguide layer and a grating structure; the waveguide layer has a first surface and a second surface opposite to each other; the grating structure is provided on the first or second surface of the waveguide layer; and the grating structure is used for guiding light incident to the grating structure to the waveguide layer and performing total reflection propagation in the waveguide layer. Such surface light source structure enables energy and direction of light emitted from a light field modulation layer to be distributed uniformly, and thus the thickness of the surface light source and the number of LEDs in the surface light source are reduced. Also disclosed is a display device.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: February 22, 2022
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Xiandong Meng, Wei Wang, Xue Dong, Jing Lv, Xiaochuan Chen, Jifeng Tan, Jian Gao, Xianqin Meng
  • Patent number: 11209151
    Abstract: A lighting apparatus includes a driver box, a driver module and a light module. The driver box includes a surrounding wall and a top cover. The surrounding wall has multiple rectangular plates. A hinge structure is disposed for connecting the surrounding wall and the top cover so that the top cover is rotatable with respect to the surrounding wall to expose a container space enclosed by the surrounding wall. An elastic clip has a first clip end fixed to the surrounding wall and has a second clip end for elastically deformed to either lock or release the top cover to rotate with respect to the surrounding wall. The driver module is disposed in the container space of the surrounding wall. The driver module is connected to a power wire via a wiring hole disposed on the surrounding wall. The light module receives a driving current from the driver module.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: December 28, 2021
    Assignee: XIAMEN LEEDARSON LIGHTING CO., LTD
    Inventors: Yongzhe Dong, Jiahong Chen, Shouqiang Hou, Xiaoliang Wen
  • Patent number: 11209695
    Abstract: A backlight device is provided and includes case having bottom plate; light guide including front surface as emission surface, rear surface opposed to front surface, and incidence surface provided between front surface and rear surface; and light-emitting elements facing incident surface of light guide, wherein light-emitting elements include first surface provided at bottom of light-emitting elements, and light-emitting surface facing incidence surface of light guide, first surfaces and rear surface are arranged side by side, and fixed to fixing tape attached over first surfaces and rear surface of light guide, and light-shielding tape facing fixing tape through light guide and light-emitting elements.
    Type: Grant
    Filed: March 12, 2021
    Date of Patent: December 28, 2021
    Assignee: Japan Display Inc.
    Inventors: Ken Sugiyama, Kosuke Matsubara, Takeshi Kaneki
  • Patent number: 11187847
    Abstract: Backlights are described. In particular, backlights including wide-web turning films and reflective polarizers having quarter-wave retarders are disclosed. Such configurations can provide turning film systems with improved luminance uniformity for large format displays.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: November 30, 2021
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Quinn D. Sanford, Kenneth A. Epstein, Matthew B. Johnson, Gary T. Boyd
  • Patent number: 11169413
    Abstract: A display apparatus includes a first polarizer, a first liquid crystal panel, a second polarizer, a second liquid crystal panel and a third polarizer which are sequentially stacked, wherein the second polarizer includes two protective layers, and a polarizing layer positioned between the two protective layers.
    Type: Grant
    Filed: July 7, 2020
    Date of Patent: November 9, 2021
    Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Jiaqing Liu, Yanping Liao, Ke Dai, Lei Guo
  • Patent number: 11168857
    Abstract: Provided is a headlamp for a vehicle, including: a light source producing light; an optical unit provided in front of the light source, and producing a high beam or a low beam by partially blocking or not blocking the light emitted from the light source; and a micro-lens array provided in front of the optical unit and diffusing the light having passed through the optical unit, wherein the micro-lens array includes: a light incident plate having a number of first microlenses on a light incident surface facing the optical unit, the first microlenses refracting the light having passed through the optical unit forward; and a light exit plate having a number of second microlenses on a light exit surface opposing the light incident surface, the second microlenses diffusing the light having passed through the first microlenses, and the first microlenses and the second microlenses have different shapes.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: November 9, 2021
    Assignee: HYUNDAI MOBIS CO., LTD.
    Inventor: Hyun Soo Lee
  • Patent number: 11119359
    Abstract: An optical composite film layer, comprising a first uniaxial optical film layer, a second uniaxial optical film layer, and a first grating film layer. The first uniaxial optical film layer comprises a platy portion and multiple refraction portions disposed on one side of the platy portion, and the multiple refraction portions are selected from one of cambered columns or quadrangular columns; the second uniaxial optical film layer is laminated on one side, close to the refraction portions, of the platy portion, the multiple refraction portions are received in the second uniaxial optical film layer, and the extraordinary light refractive index of the first uniaxial optical film layer is greater than the ordinary light refractive index of the second uniaxial optical film layer; and the first grating film layer is disposed on one side, far away from the first uniaxial optical film layer, of the second uniaxial optical film layer.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: September 14, 2021
    Assignees: HKC CORPORATION LIMITED, CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Chih Tsung Kang
  • Patent number: 11112558
    Abstract: A light guide module includes a light guide element and a light source. The light guide element includes a first light guide layer and a second light guide layer. The second light guide layer is disposed on the first light guide layer. The refractive index of the first light guide layer is greater than the refractive index of the second light guide layer. The light source is disposed in the first light guide layer.
    Type: Grant
    Filed: June 16, 2020
    Date of Patent: September 7, 2021
    Assignee: E Ink Holdings Inc.
    Inventors: Ching-Huan Liao, Hsin-Tao Huang
  • Patent number: 11083872
    Abstract: A powered catheter and/or powered catheter system is described. The catheter includes a catheter hub with one set of contact components that are configured to connect to a mating cable with a corresponding second set of contact components. The mating cable can be part of another device, such as a controller or power source.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: August 10, 2021
    Assignee: MicroVention, Inc.
    Inventors: Parker Milhous, Heath Bowman, Kaushik Joshi
  • Patent number: 11054699
    Abstract: A display apparatus includes a light source unit configured to output light, a display panel configured to display an image and including a first substrate, a second substrate facing the first substrate, and a liquid crystal layer disposed between the first substrate and the second substrate, and a diffusion layer provided between the light source unit and the display panel and including scatterers for scattering the light supplied from the light source unit. The diffusion layer has a first concentration area in which the scatterers are provided at a first concentration, and a second concentration area in which the scatterers are provided at a second concentration.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: July 6, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jahun Koo, Jinho Park, Kyung-hun Lee, Ho Lee, Tae-Jong Jun, Woo-young Cheon
  • Patent number: 11048036
    Abstract: Multiview displays include a reflective support structure located between a backlight and a screen. The backlight includes a plate light guide configured to couple out light that propagates within the plate light guide using multibeam elements. The reflective support structure reflects light incident on a portion of the surface that abuts the reflective support structure back into the plate light guide. The screen includes an array of multiview pixels configured to modulate coupled out light to create a multiview image.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: June 29, 2021
    Assignee: LEIA INC.
    Inventors: Ming Ma, David A. Fattal
  • Patent number: 11002998
    Abstract: A backlight system controls a viewing angle in a switchable privacy display system that achieves a strong private mode and enhanced brightness in the private and public modes as compared to conventional configurations. The backlight system includes a first backlight unit that emits light from a non-viewing side of the backlight system toward a viewing side of the backlight system; a second backlight unit located on a viewing side of the first backlight unit that emits light toward the viewing side of the backlight system; and a privacy optic that includes a liquid crystal material and is located on a non-viewing side of the second backlight unit and between the first backlight unit and the second backlight unit, wherein the privacy optic operates to transmit light from the first backlight unit in a limited viewing angle range.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: May 11, 2021
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hywel Hopkin, Nathan James Smith
  • Patent number: 10989960
    Abstract: The present disclosure relates to a direct-type backlight module and a liquid crystal display. the direct-type backlight module includes a back frame, a backlight source, optical films and the elastic rope. The install pillars are arranged on the first edge and the second edge opposite to the first edge of the back frame. The backlight source is arranged within the back frame. The elastic rope and the install pillars cooperatively defines the supporting net opposite to the backlight source. The optical films are arranged on the supporting net, and thus may be supported by the supporting net. In this way, the optical films may be prevented from collapse, so as to exclude the diffusion plate. Not only the cost of the manufacturing process may be reduced, and the thin design of the backlight module may be realized.
    Type: Grant
    Filed: April 13, 2020
    Date of Patent: April 27, 2021
    Assignee: HUIZHOU CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Gang Yu, Dehua Li
  • Patent number: 10983383
    Abstract: An optical film, a color filter substrate, manufacturing methods thereof and display devices are provided, in the field of liquid crystal display technology. The color filter substrate includes a base, a color resistant layer and a diffusion layer. The color resistant layer and the diffusion layer are arranged on the base, and the color resistant layer and the base are arranged at the same side of the diffusion layer. The color resistant layer comprises a plurality of color resistant blocks which are arranged in an array. The diffusion layer comprises a plurality of diffusion structures which are arranged to be in one-to-one correspondence to the plurality of color resistant blocks. Each of the plurality of diffusion structures is configured to diffuse light vertically emitted from the color filter substrate.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: April 20, 2021
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Jun Xu, Qing Zhang
  • Patent number: 10976595
    Abstract: The present disclosure provides an optical substrate and a display device. The optical substrate includes: a light guide plate which includes a light entering surface and a light extraction surface adjacent to the light entering surface, and is configured to enable light entering the light guide plate through the light entering surface to be totally reflected toward an opposite surface of the light guide plate opposite to the light entering surface; and a plurality of light extraction structures which is arranged on the light extraction surface of the light guide plate for extracting the totally-reflected light in the light guide plate, and has areas of orthogonal projections of the plurality of light extraction structures on the light extraction surface of the light guide plate gradually increasing along a direction from the light entering surface to the opposite surface.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: April 13, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiandong Meng, Jifeng Tan, Wei Wang, Xianqin Meng, Fangzhou Wang, Qiuyu Ling, Xiaochuan Chen
  • Patent number: 10948768
    Abstract: According to one embodiment, a backlight device includes a case having a bottom plate, a light guide having an emission surface, a second main surface and an incidence surface and arranged on the bottom surface, and a light source unit including a wiring board and light-emitting elements on the wiring board. Each light-emitting element has a mounting surface, a first side surface opposed to the mounting surface, and a light-emitting surface between the mounting surface and the first side surface. Each light-emitting surface faces the incidence surface, and the first side surfaces are arranged parallel to the second main surface, and the light source unit is fixed to the light guide with a fixing tape attached over each first side surface and the second main surface.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: March 16, 2021
    Assignee: Japan Display Inc.
    Inventors: Ken Sugiyama, Kosuke Matsubara, Takeshi Kaneki
  • Patent number: 10921191
    Abstract: An atomic sensing method, the method including providing a polarization converter; emitting a linearly polarized polychromatic laser beam to the polarization converter; converting, by the polarization converter, the linearly polarized polychromatic laser beam into a circularly-polarized laser beam and a linearly-polarized laser beam; combining the circularly-polarized laser beam and the linearly-polarized laser beam thereby yielding a multi-polarization polychromatic laser beam; transmitting the multi-polarization polychromatic laser beam to an atomic vapor cell comprising alkali metal atoms, polarizing the multi-polarization polychromatic laser beam into two laser beams, and detecting the two laser beams by two photodetectors, respectively.
    Type: Grant
    Filed: February 23, 2020
    Date of Patent: February 16, 2021
    Assignee: WUHAN INSTITUTE OF PHYSICS AND MATHEMATICS, CHINESE ACADEMY OF SCIENCE
    Inventors: Yi Zhang, Sihong Gu, Yuan Tian, Jiehua Chen
  • Patent number: 10914982
    Abstract: A backlight module and a display device are provided. The backlight module includes a light source panel, a first optical control layer, and a second optical control layer. The light source panel includes a plurality of light-emitting blocks arranged in an array, and each of the light-emitting blocks is provided with a plurality of backlights arranged in an array and connected in parallel. The first optical control layer is spaced apart from the light source panel and includes a plurality of control regions each corresponds to one of the backlights. Each of the control regions has a light transmittance increasing from a center position to an edge position. The second optical control layer surrounds each of the light-emitting blocks and is configured to collect light emitted by each of the light-emitting blocks, such that the light emitted by each of the light-emitting blocks is emitted to a corresponding control region.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: February 9, 2021
    Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd.
    Inventor: Yan Cheng
  • Patent number: 10901262
    Abstract: Optical enhancement and diffuser panels are provided for liquid crystal modules integrated in electronic devices. For example the enhancement and diffuser panels can be for backlight enhancement and diffusing in electronic devices having an integrated optical fingerprint sensor. The enhancement and diffuser panels include film layers that refract and diffuse light passing through in one direction (e.g., toward a display panel), while providing clear viewing windows for light passing through in the opposite direction (e.g., toward an under-display optical sensor). For example, the film layers can provide backlight enhancement and diffusing, without blurring reflected probe light used for optical sensing.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: January 26, 2021
    Assignee: SHENZHEN GOODIX TECHNOLOGY CO., LTD.
    Inventors: Yi He, Bo Pi
  • Patent number: 10895770
    Abstract: A display device includes an illumination device and a display panel. The display panel faces the illumination device and displays an image using light supplied from the illumination device. The display device includes a chassis housing the illumination device; and an adhesive tape bonding the display panel and the chassis together. The adhesive tape has a comb-shape including a body disposed along an edge of the chassis, and a plurality of protrusions extending from the body.
    Type: Grant
    Filed: July 1, 2020
    Date of Patent: January 19, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Masanao Nakui
  • Patent number: 10895748
    Abstract: A liquid crystal display device 10 includes a liquid crystal panel 11, a backlight device 12 supplying light to the liquid crystal panel 11, LEDs 13 included in the backlight device 12, a light guide plate 15 that is an optical member and included in the backlight device 12 and disposed opposite the liquid crystal panel 11 and has a light guide plate light exit surface 15a through which light from the LEDs 13 exits toward the liquid crystal panel 11, and a light guide plate side light collecting portion 20 included in the light guide plate 15, which is the optical member, and applying an anisotropic refracting action to at least light rays exiting an edge portion of the light guide plate light exit surface 15a to be directed to a middle section of the liquid crystal panel 11.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: January 19, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Naru Usukura, Hiromi Katoh
  • Patent number: 10886503
    Abstract: Novel microlens array architectures for enhanced light outcoupling from light emission are provided. Organic light emitting devices (OLEDs) that include an outcoupling layer including these novel microlens array architectures and method for fabricating such OLEDs are provided. These devices may be used to provide OLEDs with optimized light extraction.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: January 5, 2021
    Assignees: Universal Display Corporation, Kent State University
    Inventors: Yue Cui, Deng-ke Yang, Ruiqing Ma, Gregory McGraw, Julia J. Brown
  • Patent number: 10871610
    Abstract: A lighting device includes: a light source; a plate-like optical member on which light from the light source falls; an optical sheet that imparts an optical effect to light emitted from the optical member; and an accommodating member that surrounds outer peripheral edges of the optical member and outer peripheral edges of the optical sheet. The optical sheet has a body part having a polygonal shape, extension portions provided on side portions of the body part and placed between the outer peripheral edges of the optical member and the chassis, and curtain portions, provided in corner portions of the body part, each of which connects the extension portions provided on adjacent ones of the side portions, and the extension portions and the curtain portions are provided with folds, respectively.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: December 22, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Tsuyoshi Miyata
  • Patent number: 10859736
    Abstract: Provided is an optical sheet which is excellent in anti-glare property, contrast, and image clarity, as well as capable of displaying a powerful moving image, wherein at least one surface of the optical sheet is an uneven surface, and the uneven surface satisfies following conditions (1) to (3), provided that Rz0.8 is a ten-point average roughness according to JIS B0601: 1994 with a cut-off value of 0.8 mm, Rz0.25 is a ten-point average roughness according to JIS B0601: 1994 with a cut-off value of 0.25 mm, and SD is a standard deviation of an arithmetic average roughness Ra0.8 according to JIS B0601: 1994 with a cut-off value of 0.8 mm: 0.300 ?m?Rz0.8?0.650 ?m??(1) 0.170 ?m?Rz0.25?0.400 ?m??(2) SD?0.015 ?m??(3).
    Type: Grant
    Filed: October 5, 2016
    Date of Patent: December 8, 2020
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventors: Junya Eguchi, Yoshinari Matsuda, Hiroyuki Morikane, Shubou Taya, Yuki Tobe
  • Patent number: 10851970
    Abstract: A method of fabricating a casing including steps of providing a polycarbonate substrate, printing a first material on the polycarbonate substrate to form a light shielding layer by using a first screen, and printing a second material on the light shielding layer to form a light transmission layer by using a second screen is provided. The light shielding layer has at least one patterned transmissive region. The light transmission layer covers the at least one patterned transmissive region and a portion of polycarbonate substrate exposed by the at least one patterned transmissive region. Mesh counts of the first screen is greater than that of the second screen. A casing including a polycarbonate substrate, a light shielding layer, and a light transmission layer is provided. A thickness of the light transmission layer is greater than a thickness of the light shielding layer. An electronic device adopting the casing is provided.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: December 1, 2020
    Assignee: Wistron Corporation
    Inventors: Yi-An Chen, Hsin-Chi Chen, Yu-Teng Chang, Ying-Chi Wu, Hsiang-Ho Lo
  • Patent number: 10816714
    Abstract: A light guide element includes: an incidence surface wherefrom light enters from a light source; a first reflection surface configured to totally reflect at least a portion of the light entering from the incidence surface; a second reflection surface configured to totally reflect at least a portion of the light totally reflected by the first reflection surface as parallel light; and an emission surface configured to emit the parallel light totally reflected by the second reflection surface.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: October 27, 2020
    Assignee: Omron Corporation
    Inventors: Yuto Mori, Gouo Kurata, Norikazu Kitamura
  • Patent number: 10816834
    Abstract: A backlight module, a display device and a driving method are disclosed. The backlight module includes a first light guide plate and a second light guide plate arranged oppositely, a first light source and a second light source. A surface of the first light guide plate facing the second light guide plate is a light exit surface of the first light guide plate. The first light source is arranged at a light entrance surface of the first light guide plate. The second light source is arranged at a light entrance surface of the second light guide plate. The first light guide plate includes a light guide element guiding light along a direction perpendicular to the light exit surface of the first light guide plate. The second light guide plate includes a scattering element.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: October 27, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Yanbing Wu
  • Patent number: 10809442
    Abstract: A light emitting device of the disclosure includes a first light source and a second light source, a light-guiding plate having a first main surface and a second main surface that face each other, a first end surface facing the first light source, and a second end surface facing the first end surface and the second light source, a prism sheet disposed to face the first main surface, and a reflection sheet disposed to face the second main surface. The light-guiding plate includes a plurality of first slope sections and a plurality of second slope sections both provided on one of the first main surface and the second main surface. A proportion of area occupied by the second slope sections increases in a predetermined range from the second end surface, as a distance from the second end surface increases.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: October 20, 2020
    Assignee: Saturn Licensing LLC
    Inventor: Shingo Ohkawa
  • Patent number: 10806040
    Abstract: A large-sized display device having a partially curved part, includes: a partially curved transparent panel fixing plate comprising a curved part, formed so as to have a predetermined curved surface, and a flat part, formed so as to be continuous with the curved part; a curved display panel formed so as to have a curved surface corresponding to the curved surface of the curved part for displaying an image through the panel fixing plate; and a flat display panel installed at the flat part for displaying an image through the panel fixing plate.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: October 13, 2020
    Assignee: TOVIS CO., LTD.
    Inventor: Yong Beom Kim
  • Patent number: 10754173
    Abstract: The invention provides a display device including a panel module, a reflection module and a light guide module. The panel module has a display area for displaying an image and a perspective area for displaying a background. The reflection module is disposed at a side of the panel module. A reflective sheet on the reflection module faces the panel module. The shape and position of the reflective sheet correspond to the shape and position of the display area, respectively. The light guide module includes a light guide plate and a light source. The light guide module is disposed between the panel module and the reflection module. The light guide plate has a plurality of optical microstructures, and light emitted by the light source is at least partially directed away from the panel module by the optical microstructures and is transmitted to the reflection module.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: August 25, 2020
    Assignee: CHAMP VISION DISPLAY INC.
    Inventors: Chin-Ku Liu, Jhong-Hao Wu, Fa-Chih Liu
  • Patent number: 10749076
    Abstract: A light-emitting device includes a light-emitting structure with an electrode layer, a light-transmitting body, a reflective layer and a metal bump. The light-transmitting body covers the light-emitting structure, and has a first side surface and a second side surface which are substantially perpendicular to each other. The reflective layer covers the first side surface without covering the second side surface. The metal bump is directly formed on the electrode layer.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: August 18, 2020
    Assignee: EPISTAR CORPORATION
    Inventors: Liu Chun-Hung, Liao Shih-An, Liu Chien-Liang
  • Patent number: 10712612
    Abstract: To provide a display device whereby luminance distribution uniformity within a display surface can be improved. A display device of the present invention is provided with: a rectangular display panel, one surface of which displays an image; a substrate, which is disposed to face the other surface of the display panel, said the other surface being on the reverse side of the one surface, and on which a plurality of light sources are mounted; a diffuser plate disposed between the display panel and the substrate; and a supporting member, which has an opening, which light emitted from the light sources passes through, and which supports the peripheral end of the diffuser plate. The display device is also provided with reflecting members, which are respectively provided at the peripheries of the light sources close to four corner portions of the display panel, and which reflect light diffused by the diffuser plate to the corner portions of the display panel.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: July 14, 2020
    Assignee: SAKAI DISPLAY PRODUCTS CORPORATION
    Inventors: Daisuke Teragawa, Noriaki Miyoshi, Tomohiro Asamizu
  • Patent number: 10712850
    Abstract: Embodiments of a vehicle interior system are disclosed. In one or more embodiments, the system includes a base with a curved surface, and a display or touch panel disposed on the curved surface. The display includes a cold-bent glass substrate with a thickness of 1.5 mm or less and a first radius of curvature of 20 mm or greater, and a display module and/or touch panel attached to the glass substrate having a second radius of curvature that is within 10% of the first radius of curvature. Methods for forming such systems are also disclosed.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: July 14, 2020
    Assignee: CORNING INCORPORATED
    Inventors: Fabio Lopes Brandao Salgado, Thomas Michael Cleary, Steven Edward DeMartino, Timothy Michael Gross, Atul Kumar, Cheng-Chung Li, Torsten Nath, Wendell Porter Weeks
  • Patent number: 10705379
    Abstract: An LCD device having light weight, slimness, and high luminance, includes: a display panel; a light source providing a light to the display panel; and a light guide plate including an upper surface facing the display panel, an opposing lower surface, a light incidence surface facing the light source, and a light opposing surface opposing the light incidence surface, the light guide plate including a prism area and a non-prism area on the lower surface. The light guide plate further includes a plurality of prisms arranged at the prism area along a first direction which is perpendicular to the light incidence surface, a linear portion disposed at the non-prism area and extending from the plurality of prisms, a first resin layer on the linear portion, and a second resin layer on the first resin layer, wherein the first resin layer is thinner than the second resin layer.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: July 7, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jiwon Lee, Seungbeom Park, Jaesul An, Juyoung Yoon