Patents Examined by Charles S Chang
  • Patent number: 12204195
    Abstract: An electronic device includes a scattering structure, a dimming structure and a controller. The dimming structure is arranged on the scattering structure. The controller is electrically connected to the dimming structure. The controller includes a first control unit, and the first control unit is provided to adjust the transmittance of the dimming structure.
    Type: Grant
    Filed: January 16, 2024
    Date of Patent: January 21, 2025
    Assignee: INNOLUX CORPORATION
    Inventors: En-Hsiang Chen, Chih-Chin Kuo, Mao-Shiang Lin, Hsu-Kuan Hsu, WenQi Lin, Tzu-Chieh Lai
  • Patent number: 12204191
    Abstract: A liquid-crystal display panel includes a first region and a second region, and a transmittance of the first region is greater than a transmittance of the second region; the liquid-crystal display panel includes a plurality of sub-pixels; the plurality of sub-pixels include a first-color sub-pixel and a second-color sub-pixel, a transmittance of the first-color sub-pixel is greater than a transmittance of the second-color sub-pixel, and an area of the first-color sub-pixel is greater than an area of the second-color sub-pixel; and the plurality of sub-pixels further include a first-region sub-pixel and a second-region sub-pixel that have a same color, the first-region sub-pixel is located within the first region, the second-region sub-pixel is located within the second region, and a thickness of a color-resistance layer of the first-region sub-pixel is less than or equal to a thickness of a color-resistance layer of the second-region sub-pixel.
    Type: Grant
    Filed: December 17, 2021
    Date of Patent: January 21, 2025
    Assignees: CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE Technology Group Co., Ltd.
    Inventors: Jingyu Wang, Zhe Li, Zhidan Sun, Ruiqi Pan, Dan Lei, Zhengyuan Teng, Peng Li, Xiaoji Li, Taeyup Min, Hailin Qin
  • Patent number: 12204193
    Abstract: A liquid crystal display device includes a first substrate, a liquid crystal layer, a second substrate, a retardation layer, and a polarizer in this order from a back face side, and includes a plurality of pixels arrayed in a matrix shape, in which the first substrate includes a reflective layer that reflects light, a first electrode and a second electrode that are capable of generating a transverse electrical field in the liquid crystal layer, and a first horizontal alignment film that is in contact with the liquid crystal layer, the second substrate includes a second horizontal alignment film in contact with the liquid crystal layer, the liquid crystal layer has a twist alignment when no voltage is applied, and the retardation layer includes a ?/4 plate, a ?/2 plate, and a positive C plate.
    Type: Grant
    Filed: June 19, 2024
    Date of Patent: January 21, 2025
    Assignee: Sharp Display Technology Corporation
    Inventors: Shinichi Terashita, Kouichi Watanabe, Takehisa Yoshida, Fumikazu Shimoshikiryoh
  • Patent number: 12204126
    Abstract: Provided is an optical film and an electroluminescence display device that suppress a decrease in transmittance of a front surface and suppress a change in tint in an oblique direction with respect to the front surface, in a case of being used in a micro LED. The optical film includes a light absorption anisotropic layer containing a dichroic coloring agent compound, in which the light absorption anisotropic layer has an absorption axis in a normal direction of the film and has an alignment degree of 0.7 or greater at 530 nm, and in a case where transmittances at 460 nm, 530 nm, and 630 nm in a direction of 45° with respect to the normal direction of the film are respectively defined as Tb, Tg, and Tr, relationships of Expressions 0.1?Tb/Tr?0.5 (1) and 0.2?Tg/Tr?0.6 (2) are satisfied.
    Type: Grant
    Filed: July 18, 2023
    Date of Patent: January 21, 2025
    Assignee: FUJIFILM Corporation
    Inventor: Naoya Nishimura
  • Patent number: 12204204
    Abstract: A display device includes: a display panel; a light source module on a rear side of the display panel and configured to generate light supplied to the display panel, the light source module including a plurality of light sources configured to emit light and a printed circuit board (PCB) on which the plurality of light sources are provided; and a bottom chassis on a rear side of the light source module and on which the light source module is provided, wherein the PCB includes: an insulating layer, a first conductive layer on a lower surface of the insulating layer, and a second conductive layer on an upper surface of the insulating layer, and an area of the second conductive layer is smaller than an area of the first conductive layer, and the PCB is convexly bent in a direction toward the display panel.
    Type: Grant
    Filed: May 16, 2024
    Date of Patent: January 21, 2025
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyukjun Jang, Kyehoon Lee, Youngmin Lee, Yonghun Kwon, Sunyoung Kim, Hyungsuk Kim, Seungyong Shin
  • Patent number: 12204221
    Abstract: A high-brightness handwriting liquid crystal device is provided. The device includes a substrate, a first base layer disposed on the substrate, a first conductive layer disposed on a side of the first base layer away from the substrate, a second conductive layer opposite to the first conductive layer, a liquid crystal layer disposed between the first conductive layer and the second conductive layer, and a second base layer disposed on a side of the second conductive layer away from the liquid crystal layer. The liquid crystal layer includes a cholesteric liquid crystal mixture and a plurality of spacers, wherein a plurality of lattices is defined by the plurality of spacers, and the cholesteric liquid crystal mixture is filled in the plurality of lattices.
    Type: Grant
    Filed: June 3, 2023
    Date of Patent: January 21, 2025
    Assignee: WICUE USA INC.
    Inventor: Fenghua Li
  • Patent number: 12205938
    Abstract: An electronic device includes a sustaining layer, multiple substrates, multiple photoelectric units, and multiple signal layers. The substrates are arranged on a contact surface of the sustaining layer. A first end edge of at least one substrate approaches a first end edge of the sustaining layer, and a first side edge of one substrate is adjacent to a second side edge of another substrate. The photoelectric units are arranged on the first or/and second surfaces of the substrates. The signal layers are arranged on the substrates and electrically connected to the photoelectric units.
    Type: Grant
    Filed: January 30, 2024
    Date of Patent: January 21, 2025
    Assignee: PANELSEMI CORPORATION
    Inventors: Chin-Tang Li, Ting-Yen Lin, Chen-Hsun Yang
  • Patent number: 12197059
    Abstract: In a first aspect, the present disclosure relates to a system comprising a writing instrument, wherein the writing instrument comprises a solution of one or more salts and a writing orifice. Furthermore, the system comprises a drawing substrate configured to change color based on the concentration of the one or more salts and/or water content, wherein the drawing substrate comprises cholesteric liquid-crystals.
    Type: Grant
    Filed: March 29, 2023
    Date of Patent: January 14, 2025
    Assignee: BIC Violex Single Member S.A.
    Inventor: Nikolaos Chrysanthakopoulos
  • Patent number: 12197056
    Abstract: An electronic device includes a display panel and a viewing angle switchable panel disposed on the display panel. The display panel includes: a first substrate; a second substrate disposed opposite to the first substrate; and a display medium layer disposed between the first substrate and the second substrate. The viewing angle switchable panel is provided with: a third substrate; a fourth substrate disposed opposite to the third substrate; and a switching medium layer disposed between the third substrate and the fourth substrate. At least one of the third substrate and the fourth substrate has a thickness of 5 ?m to 50 ?m.
    Type: Grant
    Filed: January 18, 2024
    Date of Patent: January 14, 2025
    Assignee: INNOLUX CORPORATION
    Inventors: Sheng-Hui Chiu, Kuo-Jung Fan
  • Patent number: 12197061
    Abstract: An electronic device is provided. The electronic device includes a panel and an optical element. The optical element is disposed on the panel. The optical element includes a first surface away from the panel. The first surface has a microstructure, and the microstructure has an arithmetical mean deviation of the profile (Ra). The optical element has a thickness. In addition, the arithmetical mean deviation of the profile (Ra) and the thickness conform to the following formula: 0.00001?arithmetical mean deviation of the profile/thickness?0.0104.
    Type: Grant
    Filed: November 17, 2023
    Date of Patent: January 14, 2025
    Assignee: INNOLUX CORPORATION
    Inventors: Wei-Cheng Lee, I-An Yao, Jiunn-Shyong Lin
  • Patent number: 12189337
    Abstract: There is disclosed a projector arranged to project a light pattern. The projector comprises a spatial light modulator and a light source. The spatial light modulator has an array of pixels arranged to display a phase pattern. The array of pixels may be a substantially planar array of pixels. Each pixel comprises liquid crystals having a director rotatable in a plane of rotation between a first direction and a second direction. The light source is arranged to illuminate the array of pixels with polarised light such that the light is spatially-modulated in accordance with the phase pattern to form the light pattern. It may be said that the light pattern corresponds to the phase pattern. The angle of incidence of the light on the array of pixels is greater than zero and the light is s-polarised. The first direction is parallel to the polarisation direction of the light. The second direction is in the plane of incidence.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: January 7, 2025
    Assignee: DUALITAS LTD
    Inventors: Neil Collings, William Crossland, Jamieson Christmas
  • Patent number: 12181767
    Abstract: A color electrophoretic display with improved black optical state includes an electrophoretic medium having five types of charged electrophoretic pigment particles in a non-polar fluid: a first particle having a first optical property and first charge polarity; a second particle having a second optical property and second opposite charge polarity with a first charge magnitude; a third particle having a third optical property and second charge polarity with a second charge magnitude smaller than the first charge; a fourth particle having a fourth optical property and second charge polarity with a third charge magnitude smaller than the second charge; and a fifth particle having a fifth optical property and second charge polarity with a fourth charge magnitude greater than the first charge. The first and fifth particles are white and black, respectively, and the second, third, and fourth particles are each a different one of cyan, magenta, and yellow.
    Type: Grant
    Filed: June 17, 2024
    Date of Patent: December 31, 2024
    Assignee: E Ink Corporation
    Inventors: Stephen J. Telfer, Ziyan Wu, Sherry Hsin-Yi Tsai, Alex Cheng, Zhe Gong
  • Patent number: 12185608
    Abstract: The disclosure provides a light emitting device including a substrate and multiple pixels. The pixels are disposed on the substrate, each of the pixels includes multiple sub-pixels. Two adjacent sub-pixels are separated by a distance D, and one of the two adjacent sub-pixels has a height H. The distance and the height satisfy a relational expression: 0.3H<D?30H.
    Type: Grant
    Filed: January 24, 2022
    Date of Patent: December 31, 2024
    Assignee: Innolux Corporation
    Inventors: Li-Wei Mao, Ker-Yih Kao, Ming-Chia Shih
  • Patent number: 12174492
    Abstract: A transparent substrate for a liquid crystal device includes an alignment layer that regulates an alignment direction of liquid crystal molecules contained in a light control layer included in a light control sheet, which is the liquid crystal device, and a base layer on which the alignment layer is formed. The substrate includes a first surface and a second surface opposite to the first surface. The first surface is part of the alignment layer. The second surface is part of the base layer. A surface, which contacts the alignment layer, of the base layer has surface roughness Ra1 of 20 nm or less in a pencil hardness test. A sum Ra1+Ra2 of the surface roughness Ra1 and surface roughness Ra2 of the second surface is 5 nm or more.
    Type: Grant
    Filed: October 16, 2023
    Date of Patent: December 24, 2024
    Assignee: TOPPAN Inc.
    Inventors: Yusuke Takahashi, Daisuke Yamashita
  • Patent number: 12174488
    Abstract: A liquid crystal display device includes a bottom cover; a backlight unit disposed over the bottom cover and including a light source and a reflector sheet; and a liquid crystal panel disposed over the backlight unit, wherein the reflector sheet includes first and second sheet portions adjacent to each other in a first direction and at least one first reflective tape fixing the first and second sheet portions, and wherein the at least one first reflective tape includes a plurality of cutouts extending in a second direction perpendicular to the first direction.
    Type: Grant
    Filed: April 24, 2024
    Date of Patent: December 24, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Sung-Hyun Jung, Chul-Goo Son, Dong-Jun Cho
  • Patent number: 12169330
    Abstract: An operation display device includes: a touch panel including a transparent base and an electrostatic capacitance sensor sheet, the transparent base having an operation surface in a front surface thereof to which or with which an operation body approaches or comes into contact, the sensor sheet being provided on a back surface of the transparent base to detect the approach or the contact of the operation body; a liquid crystal panel facing a back surface of the touch panel; an outer cover covering a portion of the touch panel other than a front surface of the touch panel; and a sealing member sealing a gap between the touch panel and the liquid crystal panel, the outer cover including a spacer between the touch panel and the liquid crystal panel, and the sensor sheet being not to be interposed between the transparent base and the spacer.
    Type: Grant
    Filed: November 2, 2023
    Date of Patent: December 17, 2024
    Assignee: RICOH COMPANY, LTD.
    Inventor: Reo Kojima
  • Patent number: 12167538
    Abstract: A flexible circuit film including a first flexible film, a second flexible film facing the first flexible film, and a plurality of wirings arranged between the first flexible film and the second flexible film. The wirings have different widths and bend in different directions, and a guide film including a material more rigid than the first and second flexible films is arranged on ends of the first flexible film. The guide film includes a tear-preventing portion overlapping with a bending portion of a shortest one of the wirings while covering portions of an inner edge near inner corners of a U-shaped flexible circuit film.
    Type: Grant
    Filed: April 26, 2023
    Date of Patent: December 10, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jun Ho Hwang, Jang Mi Lee
  • Patent number: 12158670
    Abstract: Various arrangements described herein relate to a dual-sided display with improved light scattering. In one embodiment, a display is disclosed. The display includes an inside transparent layer disposed parallel to and spaced apart from an outside transparent layer. The display also includes a liquid crystal (LC) layer disposed between the inside transparent layer and the outside transparent layer and together forming a waveguide that is planar. The display includes ground electrodes disposed between the LC layer and the outside transparent layer and arranged in strips along the transparent layer, the strips being spaced apart and parallel. The display includes inside electrodes and outside electrodes disposed between the inside transparent layer and the LC layer and defining a geometric pattern that is in plane with the waveguide and a light source disposed at an edge surface of the waveguide and providing light along the waveguide.
    Type: Grant
    Filed: February 13, 2024
    Date of Patent: December 3, 2024
    Assignees: Toyota Motor Engineering & Manufacturing North America, Inc., Kent State University
    Inventors: Sean P. Rodrigues, Suman Halder, Deng-Ke Yang
  • Patent number: 12158664
    Abstract: An electro-optical device includes a first substrate, a second substrate facing the first substrate, and an electro-optical layer disposed between the first substrate and the second substrate and having an optical characteristic changeable in accordance with an electrical field. The first substrate includes a substrate, an inorganic insulating layer, a first pixel electrode and a second pixel electrode spaced apart from each other, and an alignment layer. The inorganic insulating layer, the first pixel electrode, the second pixel electrode, and the alignment layer are arranged in this order from the substrate toward the electro-optical layer. The cover layer includes a first portion filling an area of the inorganic insulating layer between the first pixel electrode and the second pixel electrode. The alignment film includes a second portion that is in contact with the first portion and of which a surface opposite to the first portion is a planar surface.
    Type: Grant
    Filed: January 15, 2024
    Date of Patent: December 3, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Yukihiro Sugiura
  • Patent number: 12153308
    Abstract: A display panel is provided by the present application. The display panel includes a plurality of sub-pixel opening regions, the display panel includes a light concentrating layer, including a plurality of light concentrating structures and a plurality of light isolating structures; the plurality of the light concentrating structures are disposed in the plurality of the sub-pixel opening regions in a one-to-one correspondence, and any adjacent two of the light concentrating structures are provided with one of the light isolating disposed therebetween.
    Type: Grant
    Filed: November 10, 2022
    Date of Patent: November 26, 2024
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Jiuhui Zhu