Patents Examined by Mariam Qureshi
  • Patent number: 11187844
    Abstract: Display device, control method are provided, which includes: light guide plate including light incident side, bottom surface, opposite light exiting surface; light extracting structure, on light exiting or bottom surface, configured to make light propagated in total reflection in light guide plate exit from light exiting surface at predetermined angle; first low refractive index layer, covering light exiting surface, refractive index of which being smaller than that of light guide plate; liquid crystal light adjusting layer, including liquid crystal layer and driving electrodes for driving liquid crystal molecules, on side of first low refractive index layer away from light exiting surface; second low refractive index layer, on side of liquid crystal light adjusting layer away from first low refractive index layer, refractive index of which and refractive index of first low refractive index layer being smaller than initial refractive index of liquid crystal light adjusting layer.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: November 30, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jifeng Tan, Wei Wang, Xiandong Meng, Xianqin Meng, Jian Gao, Wenqing Zhao
  • Patent number: 11181795
    Abstract: The present disclosure relates to an array substrate and a liquid crystal display panel. The array substrate includes a base, an active element array, a plurality of scanning lines and a plurality of data lines. The base includes an intermediate region and an edge region. The active element array is disposed in the intermediate region. The plurality of scanning lines are sequentially disposed and all extend along a first direction, each scanning line includes a first connecting segment, a second connecting segment and a third connecting segment, the connecting segments are sequentially connected, the first connecting segment and the third connecting segment are parallel, the first connecting segment passes through the intermediate region, and the second connecting segment and the third connecting segment are both disposed in the edge region. The plurality of data lines are sequentially disposed, and all extend along a second direction perpendicular to the first direction.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: November 23, 2021
    Assignee: HKC CORPORATION LIMITED
    Inventor: Jianfeng Shan
  • Patent number: 11181785
    Abstract: An electro-optical device includes a first substrate including a first pixel electrode and a second pixel electrode, a second substrate including a common electrode, and an electro-optical layer disposed between the first pixel electrode and the second pixel electrode, and the common electrode, the electro-optical layer having optical characteristics varying in accordance with an electric field, wherein the first substrate is provided with a spacer containing an inorganic material, the spacer defining a distance between the first substrate and the second substrate, and the spacer overlaps the first pixel electrode when viewed in a thickness direction of the first substrate.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: November 23, 2021
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Satoshi Ito
  • Patent number: 11181794
    Abstract: The present application provide a display panel and a manufacturing method thereof. The display panel includes a base substrate; scan lines, formed on the base substrate; data lines, formed on the base substrate and intersecting with the scan lines; and at least one pixel unit, defined by intersection of the scan lines and the data lines, each pixel unit including a pixel electrode. The display panel further includes a shield electrode, disposed between the scan line and the pixel electrode adjacent to the scan line, and being insulated from the scan line.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: November 23, 2021
    Assignee: HKC CORPORATION LIMITED
    Inventor: JianFeng Shan
  • Patent number: 11181791
    Abstract: The present disclosure illustrates a method for correcting an active matrix substrate. The method includes steps: performing the broken-line inspection process to inspect whether the broken line exists on the first and second gate lines; if one first gate line is inspected to be broken, performing a source line repair-section forming process to cut off the cut portions of the second source lines disposed at two sides of a pixel electrode corresponding to a broken location of the first gate line, to form source line repair sections overlapping with the broken first gate line and the second gate line; performing a gate line repair-section forming process on the second gate line, adjacent to the broken first gate line, to cut off the cut portions of the second gate line to form a gate line repair section overlapping with the second source lines; and performing a connection process.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: November 23, 2021
    Assignee: HKC Corporation Limited
    Inventor: Huailiang He
  • Patent number: 11175538
    Abstract: In the liquid crystal display panel, when no voltage is applied to a liquid crystal layer, a first tilt angle of liquid crystal molecules adjacent to a first vertical alignment film with respect to the first vertical alignment film and a second tilt angle of liquid crystal molecules adjacent to a second vertical alignment film with respect to the second vertical alignment film differ from each other. Any one of the first vertical alignment film and the second vertical alignment film is a photo-alignment film subjected to alignment process such that a plurality of domains, the alignment vectors of which differ from each other, are formed in a region of a display unit. The display unit includes the plurality of domains along a first direction of the display unit in a plan view, when a voltage is applied to the liquid crystal layer.
    Type: Grant
    Filed: August 15, 2018
    Date of Patent: November 16, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Shinichi Terashita, Kouichi Watanabe, Fumikazu Shimoshikiryoh
  • Patent number: 11169422
    Abstract: A display panel is disclosed. The display panel includes a plurality of pixel structures, each of the pixel structures including: a first electrode being a transparent electrode; a second electrode in substantially parallel arrangement with respect to the first electrode; a retaining wall between the first electrode and the second electrode, and enclosing a sealed cavity together with the first electrode and the second electrode; and a target liquid in the sealed cavity containing a plurality of particles, and the plurality of particles being configured to form photonic crystals with different lattice spacing under an action of different electric fields between the first electrode and the second electrode.
    Type: Grant
    Filed: August 19, 2019
    Date of Patent: November 9, 2021
    Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xuanxuan Qiao, Shuai Liu, Xianfeng Yuan, Hongjun Wang, Yuanyuan Liu, Min Wang
  • Patent number: 11169316
    Abstract: The present disclosure relates to a display panel. The display panel includes: a light guide member, a light extraction member and a modulation member sequentially arranged along a first direction; and wherein the light extraction member is configured to extract light propagating within the light guide member in a collimated manner to one side of the light extraction member away from the light guide member, and the modulation member is configured to modulate a reflectance and transmittance of the light extracted in a collimated manner by the light extraction member within the modulation member.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: November 9, 2021
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Xiandong Meng, Wei Wang, Xianqin Meng, Jifeng Tan, Qiuyu Ling, Fangzhou Wang, Xiaochuan Chen
  • Patent number: 11164932
    Abstract: A method of manufacturing a backplane for a display device includes forming an insulation layer on a substrate, forming a pad electrode layer on the insulation layer, forming a photoresist pattern on the pad electrode layer in the pad region, etching the pad electrode layer and a portion of the insulation layer by the photoresist pattern as an etch-stop layer so as to simultaneously form a pad electrode and a side protection layer, the side protection layer covering a sidewall of the pad electrode, and stripping the photoresist pattern.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: November 2, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jaewoo Jeong, Hyungue Kim, Jongjun Baek
  • Patent number: 11156890
    Abstract: A display device and a method for controlling the display device are disclosed. The display device includes a backlight module and a liquid crystal cell on a light emitting side of the backlight module. The liquid crystal cell includes a first electrode, a second electrode disposed in a first direction opposite to the first electrode, a liquid crystal layer between the first electrode and the second electrode, and a diffractive optical element in the liquid crystal layer. A refractive index of the diffractive optical element is equal to a short-axis refractive index of a liquid crystal in the liquid crystal layer. The liquid crystal cell is divided into a first portion where the liquid crystal molecules are capable of rotating in a first plane and a second portion in a second direction perpendicular to the first direction where liquid crystal molecules are capable of rotating in a first plane.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: October 26, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiandong Meng, Wei Wang, Jifeng Tan, Xianqin Meng, Fangzhou Wang, Qiuyu Ling
  • Patent number: 11156887
    Abstract: This application discloses a display panel and a display apparatus. The display panel includes a display area, a seal, a first metal wire, a signal line, a channel and a retaining wall. The seal is correspondingly arranged in a nondisplay area of the display panel. The first metal wire is correspondingly arranged between the display area and the seal. The signal line bridges over the first metal wire and is fed into the display area. The channel is located at a bridging connection position of the first metal wire and the signal line. The retaining wall is arranged at a position corresponding to the channel, beside the first metal wire.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: October 26, 2021
    Assignees: HKC CORPORATION LIMITED, CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Yunqin Hu
  • Patent number: 11150522
    Abstract: A liquid crystal display device includes a first substrate, a second substrate, a liquid crystal sandwiched between the substrates, and a display region. A hole portion is formed in the display region. A first seal portion is formed to surround the display region. A second seal portion is formed to surround the hole portion. The first and the second seal portions seal the liquid crystal. The second seal portion has a first end portion on the liquid crystal side and a second end portion on the opposite side of the liquid crystal side. A sealing material is present in the first end portion. A sealing material is present in the second end portion. A wall-like spacer is formed between the first and the second end portions to surround the hole portion. The wall-like spacer defines the gap between the first and the second substrates.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: October 19, 2021
    Assignee: Japan Display Inc.
    Inventors: Junko Nagasawa, Hideki Shiina
  • Patent number: 11150506
    Abstract: A display module includes a display panel including two substrates and a display medium sandwiched between the two substrates, a wavelength modulation unit including a carrier substrate and a wavelength modulation layer on the carrier substrate, the carrier substrate having a coefficient of thermal expansion substantially matching coefficients of thermal expansion of the two substrates, an adhesive layer bonding the display panel and the wavelength modulation unit to form a space between the display panel and the wavelength modulation unit, and an optical film interposed in the space to be clamped between the display panel and the wavelength modulation unit.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: October 19, 2021
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Li-Wei Tseng, Chih-Kang Wu, Shau-Yu Tsai, Li-Jia Chen
  • Patent number: 11150521
    Abstract: The reliability of a spacer is improved in comparison to conventional ones. A light control film which is obtained by sandwiching a liquid crystal layer between first and second laminates that are provided with at least alignment layers and which controls light transmitted therethrough by controlling the alignment of liquid crystal molecules in the liquid crystal layer by driving electrodes that are provided on the first and second laminates. With respect to the first laminate, a base that is formed of a transparent film material is provided with a spacer that maintains the thickness of the liquid crystal layer. With respect to the first and second laminates, the Vickers hardness of the spacer is from 16.9 to 40.2 inclusive, and the Vickers hardness of a part of the second laminate, the part being in contact with the front end of the spacer, is from 11.8 to 35.9 inclusive.
    Type: Grant
    Filed: June 26, 2020
    Date of Patent: October 19, 2021
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventors: Keisuke Miura, Yusuke Hagiwara, Tsubasa Honda, Noriko Katashima, Norio Ishii, Tomoya Kawashima
  • Patent number: 11143890
    Abstract: There is provided a liquid crystal optical modulation device that performs light control drive of a liquid crystal panel, the device including an optical modulation control section that switches and sets a frequency of a drive voltage in the form of a rectangular wave applied to the liquid crystal panel in accordance with a range of the drive voltage.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: October 12, 2021
    Assignee: TOPPAN PRINTING CO., LTD.
    Inventor: Ryuichi Hirayama
  • Patent number: 11143919
    Abstract: A liquid crystal display includes: a first substrate; a gate line provided in a first direction on the first substrate; a data line insulated from the gate line and provided in a second direction that is perpendicular to the first direction; a sub-spacer overlapping the data line and provided in a bar shape extending in the second direction; a second substrate overlapping the first substrate; and a liquid crystal layer provided between the first substrate and the second substrate, wherein the sub-spacer includes a separation region from which a part of the sub-spacer is removed.
    Type: Grant
    Filed: May 19, 2019
    Date of Patent: October 12, 2021
    Inventors: Sae Ron Park, Chang Hun Kwak, Jin Suek Kim
  • Patent number: 11143875
    Abstract: An optical device is provided. The optical device includes a first liquid crystal (“LC”) cell and a second LC cell stacked with the first LC cell. The first and second LC cells are configured to provide a phase retardation to a light transmitted therethrough. The optical device also includes at least one first compensation film disposed between the first LC cell and the second LC cell. The optical device also includes a second compensation film disposed at a first side of the first LC cell opposite to a second side of the first LC cell where the at least one first compensation film is disposed. The optical device also includes a third compensation film disposed at a first side of the second LC cell opposite to a second side of the second LC cell where the at least one first compensation film is disposed.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: October 12, 2021
    Assignee: FACEBOOK TECHNOLOGIES, LLC
    Inventors: Lu Lu, Fenglin Peng, Mengfei Wang, Wai Sze Tiffany Lam, Scott Charles McEldowney
  • Patent number: 11143900
    Abstract: An active matrix substrate includes a thin film transistor, a pixel electrode, a transparent capacitor portion including the pixel electrode, and when viewed from a direction normal to the substrate, a drain contact region where a drain electrode and a semiconductor layer are in contact with each other in a drain opening portion does not overlap either a first contact region where a connecting electrode and the drain electrode are in contact with each other in the first opening portion or a second contact region where the pixel electrode and the connecting electrode are in contact with each other in the second opening portion, the entirety of the second contact region overlaps the first contact region, and the transparent capacitor portion at least partially overlaps the first contact region.
    Type: Grant
    Filed: October 19, 2020
    Date of Patent: October 12, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Hiroshi Aichi
  • Patent number: 11143926
    Abstract: The present disclosure illustrates an active matrix substrate includes pixel electrodes forming the pixels; first gate lines respectively disposed between the pixel electrodes extended in parallel to each other; first source line respectively disposed between the pixel electrodes and extended in a direction crossing the first gate lines; capacitor lines respectively disposed between the first gate lines and extended in nonparallel to from one another; switch devices respectively disposed on the pixel electrodes; second source lines respectively disposed between the pixel electrodes and extended in parallel to the first source lines; second gate lines respectively disposed between the pixel electrode and extended in parallel to the first gate lines. The first gate lines, capacitor lines, first source lines, second gate lines, capacitor lines and second source lines are not in electrical connection with each other.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: October 12, 2021
    Assignee: HKC Corporation Limited
    Inventor: Huailiang He
  • Patent number: 11143893
    Abstract: A display device is provided, including a first flexible substrate, a second flexible substrate, a TFT circuit, and a liquid-crystal layer. The TFT circuit is formed on the first flexible substrate. The liquid-crystal layer is sealed between the first flexible substrate and the second flexible substrate. The first flexible substrate has a first light transmission chromaticity coordinates (x1, y1), and the second flexible substrate has a second light transmission chromaticity coordinates (x2, y2), wherein x1-x2?0.002 or y1-y2?0.002.
    Type: Grant
    Filed: September 8, 2020
    Date of Patent: October 12, 2021
    Assignee: INNOLUX CORPORATION
    Inventors: Yu-Chia Huang, Yuan-Lin Wu, Kuan-Feng Lee, Tsung-Han Tsai