Patents Examined by Thoi V. Duong
  • Patent number: 10948794
    Abstract: It is an object to provide a liquid crystal display device which has excellent viewing angle characteristics and higher quality. The present invention has a pixel including a first switch, a second switch, a third switch, a first resistor, a second resistor, a first liquid crystal element, and a second liquid crystal element. A pixel electrode of the first liquid crystal element is electrically connected to a signal line through the first switch. The pixel electrode of the first liquid crystal element is electrically connected to a pixel electrode of the second liquid crystal element through the second switch and the first resistor. The pixel electrode of the second liquid crystal element is electrically connected to a Cs line through the third switch and the second resistor. A common electrode of the first liquid crystal element is electrically connected to a common electrode of the second liquid crystal element.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: March 16, 2021
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Hajime Kimura
  • Patent number: 10928680
    Abstract: A display apparatus includes a substrate, an insulating layer, an alignment film, and a sealant. The insulating layer is disposed on the substrate and with a plurality of grooves. The alignment film is disposed on the insulating layer. The sealant is disposed on the alignment film. Wherein, the sealant overlaps at least a portion of the plurality of grooves. In a predetermined unit region, the side length of the predetermined unit region is a maximum width X of the sealant, and a total side length of the portions of the plurality of grooves located in the predetermined unit region is greater than 8 times of the maximum width X.
    Type: Grant
    Filed: November 14, 2019
    Date of Patent: February 23, 2021
    Assignee: INNOLUX CORPORATION
    Inventors: Shao-Hong Chen, Jui-Kang Tsui
  • Patent number: 10930629
    Abstract: Provided is a pixel. The pixel includes a substrate, a first electrode disposed on the substrate, a partition wall insulation layer disposed on the substrate to cover a first portion of the first electrode, a second electrode disposed on the partition wall insulation layer and including a second portion overlapping the first portion, and a light emitting element disposed on a first side surface of the partition wall insulation layer between the first portion and the second portion and connected to the first electrode and the second electrode.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: February 23, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chongsup Chang, Bumsoo Kam, Hyunae Kim, Euikang Heo
  • Patent number: 10928684
    Abstract: A display device includes a color filter substrate, an array substrate, a liquid crystal layer, a protection layer, and a plurality of main spacers. The color filter substrate includes a display region, a hole frame region, and a hole region. Further, in a thickness direction of the hole region of the color filter, an organic flattening film is present on a surface of the array substrate on the color filter substrate side at parts corresponding to positions of the main spacers.
    Type: Grant
    Filed: March 23, 2020
    Date of Patent: February 23, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Keiichi Ina, Jin Nakamura, Hisashi Nagata, Isao Takahashi, Yasuyoshi Kaise
  • Patent number: 10921658
    Abstract: An array substrate and a display panel includes an effective display region and a peripheral lead region; at least two sets of fan-shaped leads are formed on the peripheral lead region and are juxtaposably disposed and spaced apart along a first direction, a common electrode is between the adjacent two sets of the fan-shaped leads, and a plurality of connection lines extend from an edge of the effective display region; the common electrode includes a lateral section; a distance between the lateral section and the effective display region is greater than 500 ?m; the connection line and the common electrode constitute into a plurality of diversion lines extending along the second direction on a section between the lateral section and the effective display region.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: February 16, 2021
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Xing Ouyang, Jianlan Fang
  • Patent number: 10901270
    Abstract: A manufacturing method for pixel electrode is disclosed. The preparation method is simple and efficient, low in cost, and can be used for large-scale industrial production. The present also provides a pixel electrode including a substrate, and multiple branch electrodes disposed on a pixel region of the substrate; wherein the multiple branch electrodes includes a first branch electrode and a second branch electrode which are alternately spaced, the first branch electrode includes a first transparent conductive layer and a first transparent metal oxide layer which are sequentially stacked on the substrate, the second electrode includes a second transparent conductive layer and a second transparent metal oxide layer which are sequentially stacked on the substrate. The pixel electrode has high transmittance and high resolution. The invention also provides a display panel.
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: January 26, 2021
    Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Xiaolong Meng
  • Patent number: 10877305
    Abstract: Provided is a display apparatus including a light source configured to emit light; a light guide plate configured to diffuse and emit light emitted from the light source; and a local dimming portion configured to pass or scatter light emitted from the light guide plate. The local dimming portion may include an electro-optical material and a plurality of grains having refractive index that changes based on an electric field.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: December 29, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jin Hyun Cho, Nam Seok Roh, Won Geun Ryu, Sang Hyun Sohn, Hyo Gun Lee
  • Patent number: 10877318
    Abstract: A color conversion display panel includes a substrate. A color conversion portion is disposed on the substrate. The color conversion portion includes a semiconductor nanocrystal. A transmission portion is disposed on the substrate. A blue light blocking filter is disposed between the substrate and the color conversion portion. The blue light blocking filter includes a first convex portion that protrudes toward the substrate. The transmission portion includes a first region including a scatterer and a second region including a second convex portion that protrudes toward the substrate.
    Type: Grant
    Filed: August 15, 2019
    Date of Patent: December 29, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ja Hun Koo, Kyung-Hun Lee, Tae-Jong Jun, Woo-Young Cheon
  • Patent number: 10877339
    Abstract: A thin film transistor (TFT) substrate and a liquid crystal display panel are provided. The TFT substrate includes: a first substrate; a data line disposed on the first substrate; a first insulating layer disposed on the first substrate and the data line; a first common electrode disposed on the first insulating layer and above the data line to cover the data line; a second insulating layer disposed on the first common electrode and the first insulating layer; and a pixel electrode disposed on the second insulating layer.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: December 29, 2020
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Meng Wang
  • Patent number: 10866476
    Abstract: A display device includes: a first substrate including a display area at which an image is displayed, a non-display area adjacent to the display area, and a first bent portion in the non-display area thereof, the first bent portion disposed in a plane inclined to a plane in which the display area is disposed; a second substrate opposing the first substrate; and a sealing portion which is disposed in the non-display area and attaches the first substrate and the second substrate to each other.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: December 15, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seongsik Choi, Cheuljin Park, Dawoon Kim, Youngsu Kim, Hyunchul Bae
  • Patent number: 10866473
    Abstract: A display device includes a plurality of pixel rows, a first data line, a second data line, a data driver, a first test part, and a second test part. Each of the plurality of pixel rows includes a plurality of pixels. The first data line is disposed between two adjacent pixel rows among the a plurality of pixel rows. The second data line is disposed between the two adjacent pixel rows. The data driver is configured to provide at least one data signal to the first data line and the second data line. The first test part is connected to one of the first data line and the second data line, and is disposed between the plurality of pixel rows and the data driver. The second test part is electrically connected to the other of the first data line and the second data line.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: December 15, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Donghee Shin, Choong-ho Noh, Hyungjin Song, Jinyoung Lee
  • Patent number: 10866450
    Abstract: Liquid crystal display panel and liquid crystal display device are provided. A liquid crystal display panel includes a first substrate, a second substrate, and a liquid crystal layer there-between. The first substrate includes a first base substrate, and gate lines and data lines, on the first base substrate and defining a plurality of sub-pixels. The second substrate includes a second base substrate. At least one heating sensor is disposed between the first and second base substrates. A non-display area includes a first non-display area, disposed around a display area, and a second non-display area, disposed around the first non-display area. Each heating sensor includes at least one sub-sensor and two sensor terminals, including a first and second sensor terminal, respectively connected to two ends of the at least one sub-sensor. At least one of the at least one sub-sensor is disposed in the first non-display area.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: December 15, 2020
    Assignees: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD., CHENGDU TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Jian Zhao, Feng Qin, Ling Shen, Zhidan Su
  • Patent number: 10866461
    Abstract: In an image display device including an image taking window portion, the image taking window portion for an image taking camera is disposed within the image display region, and an outer diameter of a frame portion is set to satisfy a specific condition based on an angle of view of the image taking camera.
    Type: Grant
    Filed: March 11, 2020
    Date of Patent: December 15, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Jin Nakamura, Kohhei Katsuya, Taimi Oketani, Yoshihito Ishizue
  • Patent number: 10859839
    Abstract: A head mounted display has a display unit to generate a displayed image, an illumination unit to emit illumination light to the display unit, a projection unit to project image light from the display unit, and a light guide unit to transmit image light from the projection unit to pupils of a user. Here, the illumination unit has light source units, a microlens array that is illuminated by light emitted from the light source units and becomes a virtual secondary light source, a condensing optical member to focus light from the microlens array on the display unit, and a diffusion plate to diffuse light from the microlens array, and the diffusion plate is arranged closer to the condensing optical member than to the microlens array. As a result, a conjugate image is inhibited from being generated with the adoption of a microlens array.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: December 8, 2020
    Assignee: HITACHI-LG DATA STORAGE, INC.
    Inventors: Toshiteru Nakamura, Ryuji Ukai, Takuma Kuno, Takahiro Mouri, Masataka Sugita
  • Patent number: 10852463
    Abstract: The invention provides a reflection film in which generation of side lobes derived from a cholesteric liquid crystalline layer is suppressed. A reflection film of the invention includes: a first cholesteric liquid crystalline layer which is formed of a composition including a first liquid crystal compound; and a second cholesteric liquid crystalline layer which is disposed at least on one surface of the first cholesteric liquid crystalline layer and formed of a composition including a second liquid crystal compound, in which a helical pitch length of the first cholesteric liquid crystalline layer is constant, a birefringence ?n2 of the second liquid crystal compound is smaller than a birefringence ?n1 of the first liquid crystal compound, and a helical pitch number of the second cholesteric liquid crystalline layer is a half or less of a helical pitch number of the first cholesteric liquid crystalline layer.
    Type: Grant
    Filed: January 19, 2020
    Date of Patent: December 1, 2020
    Assignee: FUJIFILM Corporation
    Inventor: Shigeaki Nimura
  • Patent number: 10838245
    Abstract: A method for attaching display panel comprises: preparing a frame-shaped body comprising a first rod-like member and two second rod-like members, the two second rod-like members being substantially parallel to each other and crossing the first rod-like member; bonding the first rod-like member and the two second rod-like members to a given plane surface or a given curved surface; and moving a display panel having a width to be supported between the two second rod-like members from one of the ends of two second rod-like members towards the first rod-like member along a first surface of the two second rod-like members and a second surface of the two second rod-like members, the first surface and the second surface facing each other.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: November 17, 2020
    Assignee: Sakai Display Products Corporation
    Inventor: Katsuhiko Kishimoto
  • Patent number: 10831052
    Abstract: The present invention is directed to display devices comprising a watermark area and a non-watermark area. The display cells in the watermark area have widths of the partition walls, heights of the partition walls, top opening shapes or display cell sizes which are different from those of the display cells in the non-watermark area. The watermark aims to protect against counterfeiting or to be used for decoration purposes. The watermark is visible at certain viewing angles and/or under certain lighting conditions and it does not interfere with displaying of the regular images.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: November 10, 2020
    Assignee: E INK CALIFORNIA, LLC
    Inventors: Craig Lin, Bryan Hans Chan
  • Patent number: 10809568
    Abstract: A light convergence structure includes light convergence portions. Each light convergence portion includes a frustum structure and a plano-convex structure. The frustum structure includes a first end surface and an opposite second end surface. An area of the first end surface is less than an area of the second end surface. The plano-convex structure is on the second end surface of the frustum structure. The plano-convex structure includes a flat surface and an opposite convex spherical surface. The flat surface is in contact with the second end surface. An area of the flat surface is equal to the area of the second end surface. The first end surfaces of the light convergence portions are coplanar and together define a light incident surface of the light convergence structure.
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: October 20, 2020
    Assignees: HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Hai Tang, Jingbin Jie, Lu Gao, Jianwei Qin, Liang Gao, Bo Han
  • Patent number: 10808904
    Abstract: To obtain projection images with high contrast when selective light irradiation is performed forward of its own vehicle. A lamp unit for a vehicular lamp system performing selective light irradiation to the surroundings of the own vehicle includes: a light source; an optical shutter part that modulates light emitted from the light source; and an optical system that projects the light transmitted through the optical shutter part. The optical shutter part includes: polarizers; a liquid crystal element disposed between the polarizers and where the initial alignment of liquid crystal molecules is horizontally aligned and causes an alignment change in the in-plane direction upon electric field application; a first optical plate which is a positive A-plate disposed between the polarizers closer to the light source and the liquid crystal element; and a second optical plate which is a positive C-plate disposed between the first optical plate and the liquid crystal element.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: October 20, 2020
    Assignee: STANLEY ELECTRIC CO., LTD.
    Inventors: Yasuo Toko, Yoshihisa Iwamoto
  • Patent number: 10809434
    Abstract: A display device has a camera hole in a backlight unit constituting a display unit, the backlight unit has a dark-area improvement means by providing light to a dark-area generation region of the back side of the camera hole corresponding to the opposite side where a light source is positioned, thereby improving a dark-area region, and the dark-area improvement means includes an optical fiber. The present disclosure can improve the dark area in a hole-in-display type having the camera hole in the display unit, thereby enhancing the visibility.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: October 20, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: JiSoon Oh, HyeonTae Jeong, JaeMyeong Park, Mira Kim