Patents Examined by Thanh-Nhan P Nguyen
  • Patent number: 11614649
    Abstract: According to one embodiment, a display device includes, a first transparent substrate having a side surface and a main surface, a first alignment film disposed along the main surface, a first transparent layer located between the first transparent substrate and the first alignment film, a second transparent substrate, a pixel electrode electrically connected to a switching element, a liquid crystal layer, and a light-emitting element opposed to the side surface. The first transparent layer overlaps a part of the pixel electrode and has a lower refractive index than the first transparent substrate.
    Type: Grant
    Filed: August 11, 2022
    Date of Patent: March 28, 2023
    Assignee: Japan Display Inc.
    Inventor: Yudai Numata
  • Patent number: 11592694
    Abstract: A liquid crystal display is configured such that a composite layer thereof is transparent to incident light in one voltage condition (e.g., in the absence of an applied voltage) and scatters incident light out of the display in another voltage condition (e.g., when a voltage is applied). The liquid crystal display does not need polarizers or color filters.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: February 28, 2023
    Assignees: KENT STATE UNIVERSITY, BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Deng-Ke Yang, Xiaochen Zhou, Guangkui Qin
  • Patent number: 11586080
    Abstract: An active matrix substrate includes a glass substrate 26, a plurality of pixel electrodes 40 arrayed in a matrix, a plurality of TFTs 43, a plurality of common electrodes 42, a terminal group 60 provided at one end of a Y-axis direction on top of the glass substrate 26 and constituted by a plurality of terminals 61 and 62 placed along an X-axis direction, wires 71 that electrically connect the terminals 61 to the TFTs 43, and wires 72 that electrically connect the terminals 62 to the common electrodes 42.
    Type: Grant
    Filed: September 16, 2021
    Date of Patent: February 21, 2023
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Yohsuke Fujikawa
  • Patent number: 11586066
    Abstract: A vehicular rearview assembly includes an electro-optic element. A first substrate defines a first element surface and a second element surface. A first polarizer is coupled to the second element surface. A second substrate is spaced away from the first substrate and defines a third element surface and a fourth element surface. An electro-optic material is positioned between the first and second substrates. A second polarizer is coupled to the second substrate. A display is configured to emit light having a first polarization toward the second polarizer.
    Type: Grant
    Filed: November 2, 2020
    Date of Patent: February 21, 2023
    Assignee: GENTEX CORPORATION
    Inventors: David J. Cammenga, Adam R. Heintzelman, Xiaoxu Niu
  • Patent number: 11513380
    Abstract: Embodiments of a dual-sided transparent display panel are presented herein. One embodiment comprises a first layer of electro-optic material, the first layer of electro-optic material including an outer surface and an inner surface; a second layer of electro-optic material, the second layer of electro-optic material including an outer surface and an inner surface; a waveguide disposed between the inner surface of the first layer of electro-optic material and the inner surface of the second layer of electro-optic material; one or more light sources disposed along an edge of the waveguide that is perpendicular to the inner and outer surfaces of the first and second layers of electro-optic material; a first grating coating adjacent to the outer surface of the first layer of electro-optic material; and a second grating coating adjacent to the outer surface of the second layer of electro-optic material.
    Type: Grant
    Filed: June 10, 2020
    Date of Patent: November 29, 2022
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventor: Sean P. Rodrigues
  • Patent number: 11513277
    Abstract: A method of manufacturing a light guide substrate includes: providing a first base substrate; forming an interface protection layer on a side of the first base substrate; forming a grating structure layer at the side of the first base substrate where the interface protection layer has been formed; removing portions of the grating structure layer corresponding to the non-light extraction opening regions, so as to obtain a plurality of light extraction grating units in one-to-one correspondence with the plurality of light extraction opening regions; and removing portions of the interface protection layer corresponding to the non-light extraction opening regions. The first base substrate includes a plurality of light extraction opening regions and non-light extraction opening regions other than the plurality of light extraction opening regions.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: November 29, 2022
    Assignee: BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Jifeng Tan, Xiandong Meng, Wenqing Zhao, Xiaochuan Chen
  • Patent number: 11480826
    Abstract: A vehicle mirror includes: an image display section that displays an image with first polarized light; and a mirror section disposed on an image output side of the image display section, wherein, in order from the image display section side, the mirror section includes, for example, a first polarizer that transmits the first polarized light and reflects second polarized light, a polarization controller that controls a polarization state of light, and a second polarizer that transmits the first polarized light and absorbs the second polarized light, wherein the polarization controller includes a liquid crystal layer, a first electrode being set on a first polarizer side of the liquid crystal layer, and a second electrode being set on a second polarizer side of the liquid crystal layer, and wherein at least one of the first electrode and the second electrode is formed with multiple area electrodes.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: October 25, 2022
    Assignee: Ichikoh Industries, Ltd.
    Inventor: Masayuki Kumeta
  • Patent number: 11474393
    Abstract: A transparent electronic display layer is placed between a front and rear transparent layer. A light guide is positioned behind the transparent electronic display layer and has an outer edge. Lighting elements are positioned adjacent to the outer edge. A cavity is positioned adjacent to and on an opposing side of the lighting elements as compared to the light guide such that light exiting the lighting elements enters both the light guide and the cavity. A graphic may be provided at the cavity.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: October 18, 2022
    Assignee: Manufacturing Resources International, Inc.
    Inventors: Marcos Diaz, William Dunn
  • Patent number: 11456320
    Abstract: A display device includes a liquid crystal element, a transistor, a scan line, and a signal line. The liquid crystal element includes a pixel electrode, a liquid crystal layer, and a common electrode. The scan line and the signal line are each electrically connected to the transistor. The scan line and the signal line each include a metal layer. The transistor is electrically connected to the pixel electrode. A semiconductor layer of the transistor includes a stack of a first metal oxide layer and a second metal oxide layer. The first metal oxide layer includes a region with lower crystallinity than the second metal oxide layer. The transistor includes a first region connected to the pixel electrode. The pixel electrode, the common electrode, and the first region are each configured to transmit visible light. Visible light passes through the first region and the liquid crystal element and exits from the display device.
    Type: Grant
    Filed: August 21, 2020
    Date of Patent: September 27, 2022
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Kenichi Okazaki, Daisuke Kurosaki, Yasutaka Nakazawa, Kazunori Watanabe, Koji Kusunoki
  • Patent number: 11448915
    Abstract: According to one embodiment, a display device includes, a first transparent substrate having a side surface and a main surface, a first alignment film disposed along the main surface, a first transparent layer located between the first transparent substrate and the first alignment film, a second transparent substrate, a pixel electrode electrically connected to a switching element, a liquid crystal layer, and a light-emitting element opposed to the side surface. The first transparent layer overlaps a part of the pixel electrode and has a lower refractive index than the first transparent substrate.
    Type: Grant
    Filed: January 13, 2021
    Date of Patent: September 20, 2022
    Assignee: Japan Display Inc.
    Inventor: Yudai Numata
  • Patent number: 11442306
    Abstract: An optical display system includes an information display (image-generating) component, a polarization rotator, a polarization dependent optical element, an input holographic coupler, a light guide and an output holographic coupler. By controlling the polarization of the displayed light through the polarization rotator, the polarization dependent optical element changes the viewable content to different distances from the viewer. This enables the generation of a proper light field which will then be coupled into the light guide through the input holographic coupler, and finally go through the output holographic coupler to a user's eye.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: September 13, 2022
    Assignee: University of Central Florida Research Foundation, Inc
    Inventors: Yun-han Lee, Fenglin Peng, Guanjun Tan, Yishi Weng, Shin-Tson Wu
  • Patent number: 11442322
    Abstract: A light control sheet including a light control layer sandwiched between first and second orientation layers and including a polymer network in which domains are dispersed and filled with a liquid crystal composition including a liquid crystal molecule and a dichroic dye, a pair of transparent electrodes sandwiching the orientation layers, and a polarizing layer positioned on an opposite side of the first orientation layer to the light control layer. The light control layer has a transmittance that increases upon application of a driving voltage to the pair of transparent electrodes. When the driving voltage is not applied between the transparent electrodes, the orientation layers orient the liquid crystal molecule and the dichroic dye horizontally to the orientation layers and orient an orient absorption ax of the dichroic dye to cross an absorption axis of the polarizing layer as viewed in a thickness direction of the light control layer.
    Type: Grant
    Filed: May 19, 2020
    Date of Patent: September 13, 2022
    Assignee: TOPPAN PRINTING CO., LTD.
    Inventor: Tetsushi Yoshida
  • Patent number: 11428997
    Abstract: A liquid crystal panel is provided which is capable of performing displaying with sufficiently high quality while reducing power consumption. The liquid crystal panel 20 includes a plurality of pixel electrodes, a plurality of counter electrodes which are smaller in number and larger in individual size than the plurality of pixel electrodes, a liquid crystal layer disposed between the plurality of pixel electrodes and the plurality of counter electrodes, and a control unit configured to control a voltage applied to the plurality of pixel electrodes and a voltage applied to the plurality of counter electrodes. In a predetermined case, the control unit operates in a power saving operation mode in which the control unit performs control such that a fixed voltage is applied to the plurality of pixel electrodes and a voltage corresponding to an image signal is applied to the plurality of counter electrodes.
    Type: Grant
    Filed: June 11, 2020
    Date of Patent: August 30, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Daisuke Suehiro, Tatsuhiko Suyama, Atsushi Aoki, Daiji Kitagawa
  • Patent number: 11429003
    Abstract: A liquid crystal display device is provided and includes first and second substrates; first wiring provided on first substrate along first direction; second wiring provided along second direction intersecting with first direction; thin-film transistor provided at intersection between first and second wirings; drain electrode electrically connected to thin-film transistor; organic insulating film formed on thin-film transistor and covering part of drain electrode; first opening that penetrates organic insulating film and exposing drain electrode; island-shaped electrode disposed on first opening and organic insulating film, and electrically connected to drain electrode; inorganic insulating film disposed on organic insulating film, the drain electrode, and the island-shaped electrode inside the first opening; a second opening that penetrates the inorganic insulating film and exposing the drain electrode; and a pixel electrode formed on the inorganic insulating film and electrically connected to the island-shap
    Type: Grant
    Filed: August 24, 2020
    Date of Patent: August 30, 2022
    Assignee: Japan Display Inc.
    Inventors: Shumpei Takeuchi, Akio Ota
  • Patent number: 11422416
    Abstract: An array substrate includes a pixel electrode and a first common electrode. The pixel electrode has a frame and a branch. An edge plate of the first common electrode includes a shielding polar plate that surrounds the orthographic projection of the frame. The side of the edge plate facing the branch is provided with a groove.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: August 23, 2022
    Assignee: HKC CORPORATION LIMITED
    Inventor: Zhongnian Liu
  • Patent number: 11409182
    Abstract: The present invention provides a liquid lens comprising a first plate having a cavity for receiving conductive liquid and nonconductive liquid formed thereon, a first electrode disposed on an upper portion of the first plate, a second electrode disposed on a lower portion of the first plate, a second plate disposed on an upper portion of the first electrode, and a third plate disposed on a lower portion of the second electrode, wherein at least one of the first plate and the second plate comprises a structure through which at least one of the conductive liquid and the nonconductive liquid can flow.
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: August 9, 2022
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Seong Su Eom, Jun Phill Eom, Kyu Tae Lee, Seung Han Hyun
  • Patent number: 11402711
    Abstract: An array substrate, a display panel, a display device, and a manufacturing method for an array substrate are provided. The array substrate includes a pixel unit group which includes a first pixel and a second pixel; the first pixel includes a first pixel electrode, a first switching element, and a first connection portion extending and protruding from the first pixel electrode; the second pixel includes a second pixel electrode, a second switching element, and a second connection portion extending and protruding from the second pixel electrode; the first pixel electrode and the first switching element are electrically connected to each other via the first connection portion; the second pixel electrode and the second switching element are electrically connected to each other via the second connection portion; and an extension length of the first connection portion is not equal to an extension length of the second connection portion.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: August 2, 2022
    Assignees: FUZHOU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zongxiang Li, Wenchao Wang, Jinglong Yan, Hongjiang Wu, Baoqiang Wang, Wenrui Liu, Xi Chen, Yao Liu, Hongtao Lin, Wenchang Tao
  • Patent number: 11402698
    Abstract: According to one embodiment, a display device includes first to third scanning lines, first and a second protrusion portions disposed on the second scanning line and arranged in a first direction, third and seventh protrusion portions disposed on a side close to the third scanning line on the second scanning line, fourth and sixth protrusion portions disposed on a side close to the first scanning line on the second scanning line, and a fifth protrusion portion disposed between the first protrusion portion and the second protrusion portion. The third and sixth protrusion portions are arranged in the second direction, and the fourth and seventh protrusion portions are arranged in the second direction.
    Type: Grant
    Filed: March 18, 2021
    Date of Patent: August 2, 2022
    Assignee: Japan Display Inc.
    Inventor: Koichiro Adachi
  • Patent number: 11397366
    Abstract: A switchable light-collimating film can be used as a privacy filter for computer monitors or other display devices. The film comprises a plurality of elongated chambers having pigment particles, the position of which can be controlled by the applied electric field. Distribution of the pigment particles throughout the elongated chambers, as opposed to their concentration on one side of the chambers, narrows the viewing angle to the light passing through the film and provides privacy of the viewing images to the user.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: July 26, 2022
    Assignee: E INK CALIFORNIA, LLC
    Inventors: Craig Lin, Xiaolong Zheng, Yih-Ming Kang, HongMei Zang
  • Patent number: 11372278
    Abstract: A liquid crystal panel cutting device for cutting a liquid crystal panel includes a first cutter, a second cutter and a control member, the first cutter having two first cutting wheels that are separated from each other with a distance; the second cutter having a second cutting wheel, and the first cutter and the second cutter are opposite provided and the second cutting wheel is located between the first cutting wheels; and the control member connecting to the first cutter and the second cutter by signals, the control member controlling the first cutter to cut the upper plate downward along a gravity direction, and controlling the second cutter to cut the lower plate upward in a reverse direction of the gravity direction.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: June 28, 2022
    Assignee: LITEMAX ELECTRONICS INC.
    Inventor: Jung-Chi Lo