Patents by Inventor Yoshihide Ohue

Yoshihide Ohue has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11977305
    Abstract: According to one embodiment, a display device includes a first substrate including a scanning line extending along a first direction, a signal line extending along a second direction, a switching element, a first connection electrode, a pixel electrode, and a feed line, a second substrate, a liquid crystal layer containing polymer dispersed liquid crystal, and a light emitting module. The feed line includes an edge extending along the second direction. The first connection electrode is a transparent electrode formed of a same material as the feed line, extends along the first direction, and includes an end portion opposed to the edge.
    Type: Grant
    Filed: July 7, 2023
    Date of Patent: May 7, 2024
    Assignee: Japan Display Inc.
    Inventors: Tatsunori Muramoto, Kentaro Kawai, Yoshihide Ohue
  • Patent number: 11960178
    Abstract: According to an aspect, a display device includes: an array substrate comprising a plurality of pixel electrodes; a counter substrate comprising a common electrode in a position at least overlapping the pixel electrodes; a liquid crystal layer between the array substrate and the counter substrate; and a light source disposed so as to emit light into a side surface of the array substrate or a side surface of the counter substrate. The array substrate includes, in a display region: a plurality of signal lines arranged in a first direction with spaces between the signal lines; a plurality of scanning lines arranged in a second direction with spaces between the scanning lines; and common potential wiring provided outside the display region. The counter substrate comprises light-blocking coupling wiring that couples the common electrode to a conductive first power feeding portion.
    Type: Grant
    Filed: July 31, 2023
    Date of Patent: April 16, 2024
    Assignee: Japan Display Inc.
    Inventor: Yoshihide Ohue
  • Patent number: 11960187
    Abstract: A display device includes: an array substrate; a counter substrate; a liquid crystal layer; and a light source that emits light into a side surface of the array substrate or a side surface of the counter substrate. The display device includes: first wiring lines in a first peripheral region outside a display region, the first wiring lines being configured to be supplied with a constant potential; and second wiring lines in a second peripheral region located opposite to the first peripheral region with the display region therebetween, the second wiring lines being coupled to the scanning lines. A shape of a region occupied by the first wiring lines in the first peripheral region is obtained by inverting a shape of a region occupied by the second wiring lines in the second peripheral region, in a mirror-symmetrical manner. The first wiring lines are not coupled to the scanning lines.
    Type: Grant
    Filed: July 19, 2023
    Date of Patent: April 16, 2024
    Assignee: Japan Display Inc.
    Inventor: Yoshihide Ohue
  • Patent number: 11947750
    Abstract: A display device with a sensor in which deterioration of display quality is suppressed even when sensor wires are superimposed on respective slits of detection electrodes disposed side by side. The display device includes detection electrodes, sensor wires, pixels, scanning lines, and signal lines on a first insulating substrate. The detection electrodes are arrayed in a matrix in first and second directions. The sensor wires and signal lines are disposed alternately in the first direction and provided on the same layer. Switching elements of two of the pixels disposed side by side in the first direction each are coupled to one of the signal lines, and the signal line is superimposed on the corresponding detection electrode that straddles the two pixels. The sensor wires are disposed between the two pixels disposed side by side and superimposed on the respective slits of the two detection electrodes disposed side by side.
    Type: Grant
    Filed: January 19, 2023
    Date of Patent: April 2, 2024
    Assignee: Japan Display Inc.
    Inventors: Yoshihide Ohue, Yukiya Hirabayashi
  • Publication number: 20240094585
    Abstract: According to one embodiment, a display device including a first substrate including a first pixel and a second pixel, a second substrate, a liquid crystal layer containing polymer and liquid crystal molecules, and a light emitting element, wherein the second pixel is located between the light emitting element and the first pixel, the first substrate includes a switching element including a semiconductor layer arranged in the first pixel, a pixel electrode, and a first light shielding portion arranged in the second pixel and being adjacent to the semiconductor layer, the first light shielding portion is located between the semiconductor layer and the light emitting element in planar view and located on a side closer to the first pixel than a center of the second pixel.
    Type: Application
    Filed: November 22, 2023
    Publication date: March 21, 2024
    Inventors: Kentaro OKUYAMA, Yoshihide OHUE, Hiroki SUGIYAMA, Tomoyuki TADA
  • Patent number: 11934057
    Abstract: According to one embodiment, a display device includes a first substrate, a second substrate, a liquid crystal layer including polymers and liquid crystal molecules, and a light-emitting element. The first substrate includes a transparent substrate, a scanning line, a signal line crossing the scanning line, a switching element electrically connected to the scanning line and the signal line, an organic insulating film overlapping the switching element, and a pixel electrode electrically connected to the switching element. A thickness of the organic insulating film located between the transparent substrate and the pixel electrode is less than a thickness of the organic insulating film overlapping the switching element.
    Type: Grant
    Filed: December 12, 2022
    Date of Patent: March 19, 2024
    Assignee: Japan Display Inc.
    Inventors: Kentaro Okuyama, Yoshihide Ohue, Hiroki Sugiyama, Tomoyuki Tada
  • Patent number: 11927857
    Abstract: A display device includes: an array substrate; a counter substrate; a liquid crystal layer between the array substrate and the counter substrate; and a light source disposed so as to emit light into a side surface of the array substrate or a side surface of the counter substrate. The array substrate includes: signal lines arranged in a first direction with spaces interposed between the signal lines; scan lines arranged in a second direction with spaces interposed therebetween; a switching element coupled to a corresponding one of the scan lines and a corresponding one of the signal lines; an organic insulating layer that covers at least the switching element; and a metal layer provided on the upper side of the organic insulating layer so as to overlap the organic insulating layer. A positional misalignment portion of each signal line does not overlap a positional misalignment portion of the metal layer.
    Type: Grant
    Filed: April 5, 2023
    Date of Patent: March 12, 2024
    Assignee: Japan Display Inc.
    Inventors: Yoshihide Ohue, Yuuji Oomori, Koji Kitamura, Kentaro Okuyama
  • Patent number: 11927842
    Abstract: A display device includes: an array substrate; a counter substrate; a liquid crystal layer between the array substrate and the counter substrate; and a light source. The array substrate includes: signal lines; scanning lines; a grid-shaped organic insulating layer that extends along the scanning lines and the signal lines and overlies the scanning lines and the signal lines; pixel electrodes provided in regions surrounded by the scanning lines and the signal lines; and a first orientation film that covers the pixel electrodes. A portion of each pixel electrodes overlaps a slant surface of the organic insulating layer. The counter substrate includes: a common electrode overlapping the respective pixel electrodes; a protective film that has an insulating capability and a light transmitting capability and covers a side of the common electrode facing the array substrate at least in the display region; and a second orientation film that covers the protective film.
    Type: Grant
    Filed: March 3, 2023
    Date of Patent: March 12, 2024
    Assignee: Japan Display Inc.
    Inventors: Hiroki Sugiyama, Kentaro Okuyama, Yoshihide Ohue, Yuuji Oomori
  • Patent number: 11846854
    Abstract: According to one embodiment, a display device including a first substrate including a first pixel and a second pixel, a second substrate, a liquid crystal layer containing polymer and liquid crystal molecules, and a light emitting element, wherein the second pixel is located between the light emitting element and the first pixel, the first substrate includes a switching element including a semiconductor layer arranged in the first pixel, a pixel electrode, and a first light shielding portion arranged in the second pixel and being adjacent to the semiconductor layer, the first light shielding portion is located between the semiconductor layer and the light emitting element in planar view and located on a side closer to the first pixel than a center of the second pixel.
    Type: Grant
    Filed: August 16, 2021
    Date of Patent: December 19, 2023
    Assignee: Japan Display Inc.
    Inventors: Kentaro Okuyama, Yoshihide Ohue, Hiroki Sugiyama, Tomoyuki Tada
  • Patent number: 11835830
    Abstract: A display device according to an aspect includes: an array substrate including a plurality of first light-transmitting electrodes each disposed in a corresponding one of pixels; a counter substrate including positions that overlap the first light-transmitting electrodes in a plan view and are provided with a second light-transmitting electrode; a liquid crystal layer including polymer-dispersed liquid crystals filled between the array substrate and the counter substrate; and at least one light emitter configured to emit light toward a side surface of the counter substrate. The array substrate includes, in each of the pixels, a third light-transmitting electrode and a conductive metal layer. The third light-transmitting electrode at least partially overlaps the first light-transmitting electrode in the plan view with an inorganic insulating layer interposed therebetween, and the conductive metal layer is stacked on the third light-transmitting electrode.
    Type: Grant
    Filed: April 22, 2022
    Date of Patent: December 5, 2023
    Assignee: Japan Display Inc.
    Inventors: Hiroki Sugiyama, Yoshihide Ohue, Manabu Mizuno, Kentaro Okuyama
  • Publication number: 20230375886
    Abstract: According to an aspect, a display device includes: an array substrate comprising a plurality of pixel electrodes; a counter substrate comprising a common electrode in a position at least overlapping the pixel electrodes; a liquid crystal layer between the array substrate and the counter substrate; and a light source disposed so as to emit light into a side surface of the array substrate or a side surface of the counter substrate. The array substrate includes, in a display region: a plurality of signal lines arranged in a first direction with spaces between the signal lines; a plurality of scanning lines arranged in a second direction with spaces between the scanning lines; and common potential wiring provided outside the display region. The counter substrate comprises light-blocking coupling wiring that couples the common electrode to a conductive first power feeding portion.
    Type: Application
    Filed: July 31, 2023
    Publication date: November 23, 2023
    Inventor: Yoshihide OHUE
  • Publication number: 20230367165
    Abstract: A display device includes: an array substrate; a counter substrate; a liquid crystal layer; and a light source that emits light into a side surface of the array substrate or a side surface of the counter substrate. The display device includes: first wiring lines in a first peripheral region outside a display region, the first wiring lines being configured to be supplied with a constant potential; and second wiring lines in a second peripheral region located opposite to the first peripheral region with the display region therebetween, the second wiring lines being coupled to the scanning lines. A shape of a region occupied by the first wiring lines in the first peripheral region is obtained by inverting a shape of a region occupied by the second wiring lines in the second peripheral region, in a mirror-symmetrical manner. The first wiring lines are not coupled to the scanning lines.
    Type: Application
    Filed: July 19, 2023
    Publication date: November 16, 2023
    Inventor: Yoshihide OHUE
  • Publication number: 20230369348
    Abstract: A display device includes a first pixel, a second pixel, and a third pixel arranged in a first direction in a display area arranged on a first substrate, a first source wiring, a second wiring, and a third wiring extending in the first direction, and connected to each of the first pixel to the third pixel, and a first gate wiring, a second gate wiring, and a third wiring intersecting the first direction, and connected to each of the first pixel to the third pixel. The first pixel includes a first transistor electrically connected to the first gate wiring and the first source wiring and a liquid crystal element electrically connected to the first transistor, the first pixel to the third pixel are arranged between the first source wiring and the third source wiring, and the second source wiring, and the first source wiring intersects the third source wiring.
    Type: Application
    Filed: May 5, 2023
    Publication date: November 16, 2023
    Applicant: Japan Display Inc.
    Inventors: Kentaro KAWAI, Masataka IKEDA, Hirotaka HAYASHI, Yuuji OOMORI, Yoshihide OHUE
  • Publication number: 20230369349
    Abstract: The display device has a first substrate having a display area including pixels and a peripheral area surrounding the display area and including a peripheral circuit, a second substrate arranged facing the first substrate, a liquid crystal layer arranged between the first substrate and the second substrate, and a plurality of gate wirings spaced apart in a first direction in the peripheral circuit of the first substrate, and a plurality of signal lines spaced apart in a second direction intersecting the first direction, wherein the second substrate has a black matrix with a lattice area at a position facing the display area and the peripheral circuit, and the lattice area of the black matrix is arranged to overlap the plurality of gate wirings and the plurality of signal lines of the peripheral circuit.
    Type: Application
    Filed: May 9, 2023
    Publication date: November 16, 2023
    Applicant: Japan Display Inc.
    Inventors: Kentaro KAWAI, Yuuji OOMORI, Yoshihide OHUE
  • Publication number: 20230350257
    Abstract: According to one embodiment, a display device includes a first substrate including a first transparent substrate, a switching element including an oxide semiconductor, an organic insulating film covering the switching element, a transparent electrode including a first aperture penetrating to an upper surface of the organic insulating film, an inorganic insulating film including a second aperture penetrating to the upper surface in the first aperture, and a pixel electrode electrically connected to the switching element, and a second substrate including a second transparent substrate and opposed to the first substrate.
    Type: Application
    Filed: July 10, 2023
    Publication date: November 2, 2023
    Inventors: Tatsunori MURAMOTO, Kentaro KAWAI, Yoshihide OHUE, Akihiro HANADA
  • Publication number: 20230350253
    Abstract: According to one embodiment, a display device includes a first substrate including a scanning line extending along a first direction, a signal line extending along a second direction, a switching element, a first connection electrode, a pixel electrode, and a feed line, a second substrate, a liquid crystal layer containing polymer dispersed liquid crystal, and a light emitting module. The feed line includes an edge extending along the second direction. The first connection electrode is a transparent electrode formed of a same material as the feed line, extends along the first direction, and includes an end portion opposed to the edge.
    Type: Application
    Filed: July 7, 2023
    Publication date: November 2, 2023
    Inventors: Tatsunori MURAMOTO, Kentaro KAWAI, Yoshihide OHUE
  • Publication number: 20230350243
    Abstract: According to one embodiment, a display device includes a first substrate, a second substrate, a sealant formed bonding the first substrate with the second substrate, a liquid crystal layer surrounded by the sealant, and a light emitting module. The sealant includes a first portion, a second portion opposed to the first portion with the liquid crystal layer sandwiched therebetween, an inlet formed in the second portion, and a filling material filled in the inlet. The liquid crystal layer is arranged over a display area where an image is displayed, a first area between the display area and the first portion, and a second area between the display area and the second portion, in plan view. A first width of the first area is larger than a width of the second area.
    Type: Application
    Filed: July 12, 2023
    Publication date: November 2, 2023
    Inventors: Tatsunori MURAMOTO, Kentaro KAWAI, Yoshihide OHUE, Kentaro OKUYAMA, Tenfu NAKAMURA, Koji KITAMURA
  • Patent number: 11789303
    Abstract: A display device includes a display region, a peripheral region around the display region, a sealing portion provided in the peripheral region to seal a liquid crystal layer, and a liquid crystal supply portion provided at a part of the sealing portion and interconnecting an outside of the sealing portion and the display region. The peripheral region includes a first peripheral region which is provided between the display region and the sealing portion and from which an insulating film is removed and a second peripheral region which is provided between the display region and the sealing portion and in which the insulating film covering a circuit is formed. A light blocking film arranged so as to straddle the first and second peripheral regions and extending linearly in an extending direction of a boundary between the first and second peripheral regions is formed on a substrate.
    Type: Grant
    Filed: May 18, 2022
    Date of Patent: October 17, 2023
    Assignee: Japan Display Inc.
    Inventors: Koji Kitamura, Yoshihide Ohue, Kentaro Okuyama, Hiroya Morimoto, Masato Kesho
  • Publication number: 20230326424
    Abstract: A display device includes a plurality of scanning lines extending in a first direction, a plurality of signal lines extending in a direction intersecting the first direction, a first scanning circuit coupled to first coupling end parts of the scanning lines, a second scanning circuit coupled to second coupling end parts of the scanning lines, the second coupling end parts being opposite the first coupling end parts of the scanning lines, the first coupling end parts coupled to the first scanning circuit, and a signal output circuit configured to supply image signals to the signal lines. The scanning lines each have a broken part.
    Type: Application
    Filed: April 4, 2023
    Publication date: October 12, 2023
    Inventors: Yoshihide OHUE, Daijiro TAKANO
  • Publication number: 20230324751
    Abstract: A display device includes: an array substrate; a counter substrate; a liquid crystal layer between the array substrate and the counter substrate; spacers regulating a distance between the array substrate and the counter substrate; and a light source. The array substrate includes: signal lines arranged in a first direction; scan lines arranged in a second direction; switching elements each of which is coupled to a corresponding scan line and a corresponding signal line; and an organic insulating layer covering at least the switching elements. An area surrounded by the scan lines and the signal lines has a second area having a thickness less than that of the organic insulating layer in a first area overlapping the switching elements, the scan lines, and the signal lines in plan view. The spacers arranged in the first area have a thickness less than that of the organic insulating layer in the first area.
    Type: Application
    Filed: April 6, 2023
    Publication date: October 12, 2023
    Inventors: Yoshihide OHUE, Kentaro OKUYAMA, Hiroki SUGIYAMA, Yuuji OOMORI, Koji KITAMURA