Patents Examined by Sang V Nguyen
  • Patent number: 11914252
    Abstract: According to one embodiment, a display device includes a first substrate, a second substrate, a liquid crystal layer located between the first substrate and the second substrate and containing a polymer and a liquid crystal molecule, and a light emitting module provided along a side surface of the second transparent substrate. At least one of the first substrate and the second substrate includes first light-shielding portions arranged in a first direction. When a width of each of the first light-shielding portions in the first direction is defined as Lx, and an interval of the adjacent first light-shielding portions in the first direction is defined as Sx, a duty ratio Dx shown by Lx/(Sx+Lx) is less than or equal to 0.2.
    Type: Grant
    Filed: August 10, 2022
    Date of Patent: February 27, 2024
    Assignee: JAPAN DISPLAY INC.
    Inventor: Kentaro Okuyama
  • Patent number: 11914251
    Abstract: The invention relates to a light modulation device for a display for representing two- and/or three-dimensional image content or image sequences. The light modulation device comprises a light modulator and a controller. The phase and/or the amplitude of a light wave field, which is substantially collimated, can be varied by means of the light modulator depending on the location of the light modulator. The light modulator can be actuated by means of the control device. According to the invention, in the direction of propagation of the light wave field, at least one diffracting unit is arranged downstream of the light modulator. The diffracting unit has a variable diffracting structure. By means of the diffracting structure, the light wave field varied by the light modulator can be diffracted in a variable and predeterminable manner. Further, the present invention relates to a display and a method for producing a light modulation device.
    Type: Grant
    Filed: April 1, 2022
    Date of Patent: February 27, 2024
    Assignee: SEEREAL TECHNOLOGIES S.A.
    Inventors: Bo Kroll, Norbert Leister, Gerald Futterer, Robert Missbach, Stephan Reichelt
  • Patent number: 11916084
    Abstract: A transparent display panel with driving electrode regions, circuit wiring regions, and optically transparent regions is provided. The driving electrode regions are arranged into an array in a first direction and a second direction. An average light transmittance of the circuit wiring regions is less than ten percent, and an average light transmittance of the optically transparent regions is greater than that of the driving electrode regions and the circuit wiring regions. The first direction intersects the second direction. The circuit wiring regions connect the driving electrode regions at intervals, such that each optically transparent region spans among part of the driving electrode regions. The transparent display panel includes first signal lines and second signal lines extending along the circuit wiring regions, and each circuit wiring region is provided with at least one of the first signal lines and at least one of the second signal lines.
    Type: Grant
    Filed: August 24, 2022
    Date of Patent: February 27, 2024
    Assignee: AUO Corporation
    Inventors: Chun-Yu Lin, Kun-Cheng Tien, Jia-Long Wu, Ming-Lung Chen, Shu-Hao Huang
  • Patent number: 11906858
    Abstract: A display portion of a display device includes a gate wiring formed of a first metal layer, a signal line formed of a second metal layer, a metal wiring formed of a third metal layer. A terminal portion of the display device includes a first metal portion formed of the second metal layer, and a second metal portion that is laminated on the first metal portion and formed of the third metal layer. The second metal portion covers an upper surface and a side surface of the first metal portion, and a peripheral portion of the second metal portion is covered by an organic insulating film, and the inside of the peripheral portion of the second metal portion is exposed via a first through hole formed in the organic insulating film.
    Type: Grant
    Filed: September 1, 2022
    Date of Patent: February 20, 2024
    Assignee: Japan Display Inc.
    Inventor: Hideki Shiina
  • Patent number: 11908872
    Abstract: A display device includes: a substrate; a first scan line arranged along a first direction on the substrate; a shield electrode overlapping a part of the first scan line in a direction that is perpendicular to a plane of the substrate; a second connection electrode on the shield electrode; and a data line arranged along a second direction on the second connection electrode, and connected with the second connection electrode, wherein the shield electrode overlapping the first scan line and the second connection electrode in a direction that is perpendicular to a plane of the substrate.
    Type: Grant
    Filed: November 3, 2021
    Date of Patent: February 20, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young Jin Cho, Ji Su Na, Yang Wan Kim
  • Patent number: 11899321
    Abstract: The present disclosure provides a liquid crystal display panel and a liquid crystal display device. The liquid crystal display panel includes a plurality of sub-pixels defined by a light shielding matrix, and an array substrate and an opposing substrate arranged to be spaced apart from each other. The opposing substrate includes a first substrate and a plurality of spacers, wherein the spacers are on a side of the first substrate close to the array substrate and being within a light shielding area of the light shielding matrix. The array substrate includes a second substrate and a plurality of protrusion structures, wherein the protrusion structures are on a side of the second substrate close to the opposing substrate, and being within the light shielding area of the light shielding matrix.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: February 13, 2024
    Assignees: Hefei BOE Display Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Liangliang Jiang, Heng Li, Lei Guo, Ke Dai, Yanping Liao, Seungmin Lee
  • Patent number: 11892736
    Abstract: An array substrate and a display panel are disclosed. A common electrode layer on the array substrate includes a common electrode trunk and multiple common electrode branches. A pixel electrode layer includes multiple interconnected pixel electrode branches, each of which includes a branch body and a branch end connected therewith. The branch end includes a first side opposite to the common electrode trunk to form a first gap, and a second side and a third side respectively disposed opposite to the corresponding common electrode branches to form a second gap and a third gap. A fourth gap is formed between the branch body and the common electrode branch. Of the first, the second and the third gaps, the width value corresponding to at least one gap is smaller than the width of the fourth gap.
    Type: Grant
    Filed: December 5, 2022
    Date of Patent: February 6, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Xinglong Zheng, Jiheng Feng
  • Patent number: 11892733
    Abstract: Purpose is to realize a display device of high definition and high response speed. The structure is as follows. A liquid crystal display device including: scanning lines extending in a first direction and being arranged in a second direction, video signal lines extending in the second direction and being arranged in the first direction, and a pixel being surrounded by the scanning lines and the video signal lines, in which a pixel electrode is formed in the pixel, the pixel electrode includes a first portion including comb electrode, a second portion including contact portion to receive electrical signal, and a third portion, the third portion protrudes toward an adjacent pixel electrode compared with the first portion and the second portion, and a normal of a side toward the adjacent pixel electrode of the third portion intersects with the first direction and the second direction with an angle other than 0 and 90 degrees.
    Type: Grant
    Filed: February 23, 2023
    Date of Patent: February 6, 2024
    Assignee: JAPAN DISPLAY INC.
    Inventors: Masateru Morimoto, Satoru Kawasaki
  • Patent number: 11880106
    Abstract: A display device includes a display panel, a backlight, at least one first circuit substrate having at least one first connector, a second circuit substrate having at least one second connector, and at least one flexible flat cable (FFC). By bending at a plurality of bending positions, one of a front face and a back face at a first end of the at least one FFC faces the backlight side and another of the front face and the back face at a second end of the at least one FFC faces the backlight side. The first end is connected to the at least one first connector, and the second end is connected to the at least one second connector.
    Type: Grant
    Filed: March 23, 2023
    Date of Patent: January 23, 2024
    Assignee: Sharp Display Technology Corporation
    Inventors: Tomoo Sasaki, Daisuke Teragawa, Tomohiro Asamizu
  • Patent number: 11874543
    Abstract: A plurality of pixel electrodes are provided in a display region. A plurality of pixel transistors corresponding to the plurality of pixel electrodes in a one-to-one manner are provided in a region outside the display region. Each of the pixel transistors is connected to the corresponding pixel electrode by a pixel wiring line. An input pad group, to which a drive signal group for driving the plurality of pixel transistors is input, is provided on a TFT substrate. Here, of a region on the TFT substrate, the plurality of pixel transistors are provided only in a region other than a region between the input pad group and the display region.
    Type: Grant
    Filed: January 20, 2023
    Date of Patent: January 16, 2024
    Assignee: Sharp Display Technology Corporation
    Inventors: Takahiro Yamaguchi, Shige Furuta, Yuhichiroh Murakami, Hiroyuki Adachi
  • Patent number: 11869899
    Abstract: The present disclosure provides a GOA circuit, an array substrate and a display device, wherein the GOA circuit comprises: a GOA area, and the GOA area comprises a plurality of GOA unit circuits cascaded with each other; a lead area, wherein at least one STV signal line and at least one non-STV signal line are arranged in the lead area, each STV signal line and each non-STV signal line is connected to at least one GOA unit circuit, and the non-STV signal line comprises at least one of a Vdd signal line, a Clk signal line, a VGH signal line and a VGL signal line; a projection of the at least one STV signal line on the lead area does not overlap a projection of the at least one non-STV signal line on the lead area.
    Type: Grant
    Filed: June 24, 2021
    Date of Patent: January 9, 2024
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Ruifang Du, Lanzhou Ma, Haijiao Qian, Xiaoye Ma
  • Patent number: 11852941
    Abstract: A cholesteric liquid crystal display device includes a solar cell, a first substrate, a shielding layer, a first electrode layer, a cholesteric liquid crystal layer, a second electrode layer and a second substrate stacked sequentially from bottom to top. The solar cell includes a metal wiring pattern layer. The shielding layer corresponds to the upper side of the metal wiring pattern layer, and is used to reduce the reflection of light from the metal circuit pattern layer. In this way, the cholesteric liquid crystal display device replaces the traditional black absorbing layer with the black material of the solar cell, which can not only absorb light, but also display the image with self-sustaining power. The cholesteric liquid crystal display device shields the arrangement of the metal wiring pattern layer through the shielding layer, which can ensure the image quality of the display panel.
    Type: Grant
    Filed: January 18, 2023
    Date of Patent: December 26, 2023
    Assignee: IRIS OPTRONICS CO., LTD.
    Inventors: Wu-Chang Yang, Hung Tien Chen, Chi-Chang Liao
  • Patent number: 11852936
    Abstract: A liquid crystal display panel includes a color filter substrate, an array substrate, and a liquid crystal layer. The array substrate includes a plurality of data lines and a plurality of data line black matrix less (DBS) electrodes disposed above the data lines. The DBS electrodes include at least one slit-shaped opening disposed at intervals. It may solve the problem that the data line and the DBS electrode always keep overlapping in the pixel structure of the prior art, resulting in a high parasitic capacitance of the data line, which is beneficial to the application of the DBS electrode in high-frequency and large-sized display panels.
    Type: Grant
    Filed: April 21, 2020
    Date of Patent: December 26, 2023
    Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Yani Chen
  • Patent number: 11852937
    Abstract: The manufacturing yield of a display device is improved. The resistance of a display device to ESD is increased. The display device includes a substrate, a display portion, a connection terminal, a first wiring, and a second wiring. The first wiring is electrically connected to the connection terminal and includes a portion positioned between the connection terminal and the display portion. The second wiring is electrically connected to the connection terminal, is positioned between the connection terminal and an end portion of the substrate, and includes a portion in which a side surface is exposed at an end portion of the substrate. The display portion includes a transistor. The transistor includes a semiconductor layer, a gate insulating layer, and a gate electrode. The semiconductor layer and the second wiring include a metal oxide.
    Type: Grant
    Filed: July 13, 2022
    Date of Patent: December 26, 2023
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Kenichi Okazaki, Yukinori Shima, Daisuke Kurosaki, Masataka Nakada
  • Patent number: 11846844
    Abstract: A transmissive liquid crystal panel includes a pixel region where a plurality of pixels are arrayed, a liquid crystal layer configured to modulate light for each of the pixels, an incident section configured to make the light incident on the liquid crystal layer, an emission section configured to emit, as image light, the light modulated by the liquid crystal layer, and a vapor chamber including an opening section corresponding to the pixel region, a heat receiving section around the opening section, and a heat radiating section configured to radiate heat received by heat receiving section, the vapor chamber vaporizing, with the heat received, a coolant in a liquid phase encapsulated on an inside of the vapor chamber and radiating, with the heat radiating section, heat of the coolant in a gas phase to thereby condense the coolant in the gas phase into the coolant in the liquid phase.
    Type: Grant
    Filed: July 27, 2022
    Date of Patent: December 19, 2023
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Norikazu Kadotani
  • Patent number: 11846860
    Abstract: A display device including: a substrate; a first thin film transistor of polysilicon semiconductor, a second thin film transistor of oxide semiconductor; a first light shading film opposing to the polysilicon semiconductor, and a second light shading film opposing to the oxide semiconductor; a first insulating film, a second insulating film which is constituted from plural insulating films, and a third insulating film superposed in this order; a first through hole penetrating the second insulating film and not penetrating the first insulating film and the third insulating film; a second through hole penetrating the first insulating film and the third insulating film; the first light shading film connects with a first conductive component, a part of the first conductive component exists on the third insulating film, through the second through hole.
    Type: Grant
    Filed: February 6, 2023
    Date of Patent: December 19, 2023
    Assignee: Japan Display Inc.
    Inventors: Akihiro Hanada, Toshihide Jinnai, Isao Suzumura, Hajime Watakabe, Ryo Onodera
  • Patent number: 11846847
    Abstract: Provided is a light-emitting device having an excellent light emission performance irrespective of its small thickness. The light-emitting device includes a base having a surface; one or more light sources that are provided on the surface of the base, and each have an optical axis; a reflective lens provided to interpose the light source between the reflective lens and the base; a reflective sheet that is provided to surround the light source along the surface of the base, and includes a first surface that makes a first angle relative to a plane that is substantially orthogonal to the optical axis to allow the first surface to be away also from the base as the first surface is away from the light source; and a light diffusion member provided to interpose the light source, the reflective lens, and the reflective sheet, between the light diffusion member and the base.
    Type: Grant
    Filed: October 14, 2021
    Date of Patent: December 19, 2023
    Assignee: SATURN LICENSING LLC
    Inventors: Mitsuhiro Kawase, Yohei Takakuwa, Roger Corn
  • Patent number: 11846857
    Abstract: An array substrate and a display panel are provided. By arranging a drain and a connection hole in a range defined by two branch portions of a source, an area occupied by the drain is reduced, and the defective problems of bright spots or vertical lines displayed on the display panel due to a short circuit of the drain and data lines can be avoided.
    Type: Grant
    Filed: May 28, 2021
    Date of Patent: December 19, 2023
    Assignee: TCL China Star Optoelectronics Technology Co., Ltd.
    Inventors: Litao Yang, Xing Ouyang
  • Patent number: 11846858
    Abstract: An array substrate and a display panel are provided. The array substrate includes a base substrate, a first metal layer disposed on the base substrate, a first insulating layer disposed on the first metal layer, a second metal layer disposed on the first insulating layer, a second insulating layer disposed on the second metal layer, and a pixel electrode layer disposed on the second insulating layer. The array substrate further includes common wirings and voltage-dividing wirings. An orthographic projection of the common wirings on the base substrate does not overlap with an orthographic projection of the voltage-dividing wirings on the base substrate.
    Type: Grant
    Filed: July 23, 2021
    Date of Patent: December 19, 2023
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Wei Li
  • Patent number: 11841596
    Abstract: An array substrate, a display panel, and a display device. The array substrate includes: a plurality of data lines, a plurality of scanning lines, a pixel array, first common electrode lines, and second common electrode lines; the HSD design is applied to the array substrate, and the array substrate is provided with first common electrode lines and second common electrode lines, and the second common electrode lines are provided on the data lines and connected to each other to form a meshed structure of the common electrodes, which ensures the stability of the voltage signals of the common electrodes and effectively improves the display effect of the display panel.
    Type: Grant
    Filed: December 6, 2022
    Date of Patent: December 12, 2023
    Assignee: HKC CORPORATION LIMITED
    Inventor: Yanna Yang