Patents by Inventor Gen Koide

Gen Koide 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).

  • Publication number: 20230387374
    Abstract: According to one embodiment, a display device includes a display panel, a first wiring substrate, and a first conductive material. The display panel includes a basement located in a display area and a non-display area, a plurality of pixels arranged above the basement and located in the display area, a plurality of pads arranged above the basement and located in the non-display area, and a first power line arranged above the basement, located between the display area and the plurality of pads in the non-display area, and including the first connection surface.
    Type: Application
    Filed: May 30, 2023
    Publication date: November 30, 2023
    Applicant: Japan Display Inc.
    Inventors: Yoshinori AOKI, Gen KOIDE
  • Publication number: 20230368567
    Abstract: According to an aspect, a detection device including a plurality of optical sensors arranged in a matrix having a row-column configuration, the detection device being configured to: detect a signal that is output from each of the optical sensors by reverse-biasing the optical sensor, and perform a refreshing operation to restore characteristics of the optical sensor to an initial state by forward-biasing the optical sensor for each predetermined period.
    Type: Application
    Filed: July 25, 2023
    Publication date: November 16, 2023
    Inventors: Gen KOIDE, Keiichi SAITO, Takashi NAKAMURA
  • Publication number: 20230369355
    Abstract: According to an aspect, a detection device includes a plurality of optical sensors arranged on a substrate. Each of the optical sensors includes a first photodiode and a second photodiode that is coupled in series and in an opposite direction to the first photodiode.
    Type: Application
    Filed: July 25, 2023
    Publication date: November 16, 2023
    Inventors: Keiichi SAITO, Takashi NAKAMURA, Gen KOIDE, Takao SOMEYA, Tomoyuki YOKOTA
  • Patent number: 11809031
    Abstract: A display device includes a substrate, a display region in which a plurality of pixels are provided on the substrate and that has a first side, a second side, a third side, a fourth side, and a plurality of curved portions, a peripheral region located between an end portion of the substrate and the display region, a plurality of scan lines extending in a first direction, a plurality of signal lines extending in a second direction, at least one gate driver arranged in the peripheral region and coupled to the scan lines, a signal line coupling circuit arranged in the peripheral region and coupled to the signal lines, a plurality of terminals aligned in the peripheral region, and a plurality of wiring lines coupling the terminals and the signal line coupling circuit.
    Type: Grant
    Filed: March 3, 2021
    Date of Patent: November 7, 2023
    Assignee: Japan Display Inc.
    Inventors: Hiroyuki Abe, Kazune Matsumura, Gen Koide, Kentaro Agata
  • Publication number: 20230350252
    Abstract: According to one embodiment, in the frame region, a second portion of each signal line is provided between a display region and a switch circuit, and is drawn from the switch circuit toward the display region, a first portion of the signal line is formed by a second wiring layer, provided between the second portion and the display region, and connected to the second portion, the second portion of the signal line and each of a plurality of detection lines are formed by a third wiring layer, and the second portions of the plurality of signal lines and the plurality of detection lines are provided approximately parallel to each other.
    Type: Application
    Filed: July 7, 2023
    Publication date: November 2, 2023
    Applicant: Japan Display Inc.
    Inventor: Gen KOIDE
  • Patent number: 11782546
    Abstract: A display device includes a plurality of first sub-pixels configured to display red, a plurality of second sub-pixels configured to display green, a plurality of third sub-pixels configured to display blue, and a plurality of fourth sub-pixels configured to display white, a first signal line coupled to the first sub-pixels, a second signal line coupled to the second sub-pixels, and a third signal line coupled to the third sub-pixels and the fourth sub-pixels, a plurality of detection electrodes arrayed in a matrix (row-column configuration) and each provided overlapping the first sub-pixels, the second sub-pixels, the third sub-pixels, and the fourth sub-pixels, and a plurality of signal supply wires coupled to the respective detection electrodes. The signal supply wires are each provided overlapping at least one of the first signal line and the second signal line and not overlapping the third signal line.
    Type: Grant
    Filed: October 21, 2022
    Date of Patent: October 10, 2023
    Assignee: Japan Display Inc.
    Inventor: Gen Koide
  • Patent number: 11774811
    Abstract: The purpose of the present invention is to prevent an overhang in a through hole in the display area when through holes in the organic passivation film in the display area and in the terminal area are simultaneously formed. The structure to realize this purpose is as follows: the terminal area having a lead wire, formed from a first metal, and extending to the display area, a first insulating film covering the lead wire, a second metal formed on the first insulating film, and a third metal formed on the surface of the second metal, wherein the first insulating film has a first through hole and a second through hole, the second metal has a first portion that connects with the lead wire via the first through hole, the second metal has a second portion that overlaps the second through hole, the second portion is separated from the first portion.
    Type: Grant
    Filed: October 20, 2020
    Date of Patent: October 3, 2023
    Assignee: Japan Display Inc.
    Inventors: Hidetatsu Nakamura, Yasuhiro Kanaya, Gen Koide, Hiroyuki Abe
  • Patent number: 11774820
    Abstract: A display device includes a first transistor provided with an oxide semiconductor layer, a first gate electrode facing the oxide semiconductor layer and a first gate insulation layer between the oxide semiconductor layer and the first gate electrode, a first transparent conductive layer in contact with the oxide semiconductor layer in a first contact area not overlapping the first gate electrode in a plan view, and a second transparent conductive layer connected to the first transparent conductive layer in a second contact area overlapping the first gate electrode in a plan view and provided in a display area of the pixel.
    Type: Grant
    Filed: February 17, 2022
    Date of Patent: October 3, 2023
    Assignee: Japan Display Inc.
    Inventors: Yoshitaka Ozeki, Gen Koide, Nobutaka Ozaki, Koshiro Moriguchi
  • Patent number: 11774822
    Abstract: The purpose of the present invention is to realize a structure that the testing terminals are remained in the final product in the liquid crystal display device having a variant display area. The structure of the present invention is as follows. The display area is variant, the outer shapes of the counter substrate 200 and the TFT substrate are also variant similar to the display area. The terminal area formed on the TFT substrate has a straight first area, a second area and a third area; the second area and the third are bent from the first area and formed at sides of the first area. A plurality of terminals to drive the liquid crystal display device exist in the first area, and a plurality of terminals for testing the liquid crystal display device exist in the second area and the third area.
    Type: Grant
    Filed: June 20, 2022
    Date of Patent: October 3, 2023
    Assignee: Japan Display Inc.
    Inventor: Gen Koide
  • Patent number: 11762497
    Abstract: A peripheral wiring region of a display device includes a first insulating layer on a substrate, a first wiring layer on the first insulating layer, a second insulating layer which is present on the first insulating layer and covers the first wiring layer, and a second wiring layer on the second insulating layer. A plurality of video signal wirings are arranged in the first wiring layer. A plurality of touch detection wirings arranged in a matrix in an X direction and a Y direction and a conductor pattern to which a fixed potential is supplied are formed in the second wiring layer. The conductor pattern is arranged at a position overlapping a part of the plurality of video signal wirings and is capacitively coupled to the part of the plurality of video signal wirings.
    Type: Grant
    Filed: June 28, 2022
    Date of Patent: September 19, 2023
    Assignee: JAPAN DISPLAY INC.
    Inventors: Kazune Matsumura, Seiichi Uramoto, Gen Koide
  • Publication number: 20230284941
    Abstract: A detection device includes a sensor unit that has a detection area divided into a plurality of partial detection areas, a control circuit that has a first mode of acquiring data for each of the partial detection areas based on a detection value acquired from the partial detection area and a second mode of selecting the partial detection areas in which a signal strength of the data acquired in the first mode is relatively higher among the partial detection areas, and acquiring biometric data of an object to be detected based on a detection value acquired by coupling the selected partial detection areas in parallel, and an amplifying circuit configured to receive the detection value acquired in the second mode.
    Type: Application
    Filed: February 24, 2023
    Publication date: September 14, 2023
    Inventor: Gen KOIDE
  • Publication number: 20230288762
    Abstract: A display device is provided and includes display unit comprising common electrodes two dimensionally arrayed on substrate, drive signal lines configured to transmit drive signals for touch detection to common electrodes, and switch circuit comprising transistors connected to drive signal lines to select at least one common electrode; flexible substrate connected to substrate; pads at connections of flexible substrate and substrate; and touch detection circuit configured to transmit drive signals to common electrodes, wherein: transistors comprises: first transistor connected to first electrode of common electrodes via first wiring of first length; and second transistor connected to second electrode of common electrodes via second wiring of second length; channel width of first transistor is narrower than channel width of second transistor; drive signal lines are respectively connected to pads separated at two or more positions.
    Type: Application
    Filed: May 15, 2023
    Publication date: September 14, 2023
    Inventor: Gen KOIDE
  • Patent number: 11754897
    Abstract: A liquid crystal display is provided and includes first and second substrates and liquid crystal layer therebetween; pixel electrode on first substrate; pedestal metal coupled to pixel electrode; semiconductor layer substantially U-shaped and coupled to pedestal metal at first coupling portion; scan line that extends in first direction and in layer different from semiconductor layer; signal line that extends in second direction different from first direction so as to three-dimensionally cross scan line, signal line being coupled to semiconductor layer at second coupling portion; and extending portion that is part of scan line and that protrudes from scan line, the extending portion extending along signal line, wherein: in first direction along a shorter side of each pixel unit, extending portion is adjacent to pedestal metal; and in second direction along a longer side of each pixel unit, length of extending portion is smaller than length of pedestal metal.
    Type: Grant
    Filed: June 16, 2022
    Date of Patent: September 12, 2023
    Assignee: Japan Display Inc.
    Inventor: Gen Koide
  • Publication number: 20230258990
    Abstract: A display device includes a substrate, a plurality of signal lines, a plurality of terminals, a plurality of wiring lines, metal wiring, a second metal layer, a third metal layer. In a first wiring region, each wiring line is composed of the first metal layer and extends in a second direction intersecting with the first direction. In a second wiring region between the first wiring region and the terminals, the wiring lines include the wiring line composed of the first metal layer and the second metal layer and the wiring line composed of the third metal layer. The metal wiring is provided in a different layer from the first metal layer; and intersects with the wiring lines in the first wiring region and extends in the first direction when viewed from a direction perpendicular to the substrate.
    Type: Application
    Filed: April 25, 2023
    Publication date: August 17, 2023
    Inventors: Gen KOIDE, Mamoru DOUYOU
  • Publication number: 20230251534
    Abstract: According to an aspect, a display device includes: a first substrate having a first side and a second side opposed to the first side; a display region provided with pixels; a first partial peripheral region between the first side and the display region; a second partial peripheral region between the second side and the display region; a plurality of signal lines configured to supply signals to switching elements in the pixels; a plurality of first terminals provided in the first partial peripheral region and configured to be electrically coupled to a driver integrated circuit; a plurality of second terminals provided in the second partial peripheral region and configured to be supplied with signals for inspection; and a first coupling circuit provided between the first terminals and the display region in the first partial peripheral region and configured to switch between coupling and decoupling the signal lines and the second terminals.
    Type: Application
    Filed: April 14, 2023
    Publication date: August 10, 2023
    Applicant: Japan Display Inc.
    Inventors: Gen Koide, Hiroyuki Abe, Kazune Matsumura
  • Publication number: 20230205022
    Abstract: According to one embodiment, a display device includes a first common electrode and a second common electrode arranged in a first direction, a first switch unit selectively supplying a first drive signal or a second drive signal different from the first drive signal to the first common electrode, and a second switch unit selectively supplying the first drive signal or the second drive signal to the second common electrode, wherein the second common electrode and the first switch unit are arranged in a second direction intersecting the first direction, the first switch unit comprises a first switch circuit and a second switch circuit arranged in the second direction.
    Type: Application
    Filed: February 28, 2023
    Publication date: June 29, 2023
    Applicant: Japan Display Inc.
    Inventor: Gen KOIDE
  • Patent number: 11686983
    Abstract: A display device is provided and includes display unit comprising common electrodes two dimensionally arrayed on substrate, drive signal lines configured to transmit drive signals for touch detection to common electrodes, and switch circuit comprising transistors connected to drive signal lines to select at least one common electrode; flexible substrate connected to substrate; pads at connections of flexible substrate and substrate; and touch detection circuit configured to transmit drive signals to common electrodes, wherein: transistors comprises: first transistor connected to first electrode of common electrodes via first wiring of first length; and second transistor connected to second electrode of common electrodes via second wiring of second length; channel width of first transistor is narrower than channel width of second transistor; drive signal lines are respectively connected to pads separated at two or more positions.
    Type: Grant
    Filed: August 30, 2022
    Date of Patent: June 27, 2023
    Assignee: Japan Display Inc.
    Inventor: Gen Koide
  • Publication number: 20230194916
    Abstract: In one embodiment, a display device includes a display area, a peripheral area, scanning lines, signal lines, a first driver in the peripheral area, and a second driver in the peripheral area. The display area has an arc-shaped corner. The first driver includes first and second buffers configured to apply voltage to the scanning lines, a first shift register unit configured to control the first buffer unit, and a second shift register unit configured to control the second buffer unit. At the corner, extension directions of the first buffer unit and the first shift register unit are equal to each other. Extension directions of the second buffer unit and the second shift register unit are different from each other.
    Type: Application
    Filed: February 15, 2023
    Publication date: June 22, 2023
    Applicant: Japan Display Inc.
    Inventors: Gen KOIDE, Shimpei NOSHITA, Junichi KITAMURA
  • Patent number: 11675241
    Abstract: According to an aspect, a display device includes: a substrate; a display region; a peripheral region; signal lines; terminals; wires coupling the terminals and the signal lines in the peripheral region; and first and second metal layers in different layers perpendicularly to the substrate and an insulating film in the peripheral region. The peripheral region includes: a first wiring region, in which the wires are electrically coupled to the signal lines; a second wiring region between the first wiring region and the terminals, and in which at least one or more wires pass through the first and second metal layers; and a third wiring region between the first and second wiring regions, and in which the wires extend in a second direction intersecting the first direction. The third wiring region includes contacts coupling the first and second metal layers, and a virtual line connecting the contacts has a curved shape.
    Type: Grant
    Filed: May 2, 2022
    Date of Patent: June 13, 2023
    Assignee: Japan Display Inc.
    Inventors: Gen Koide, Hiroyuki Abe, Kazune Matsumura
  • Patent number: 11675451
    Abstract: A display device includes a plurality of first sub-pixels configured to display red, a plurality of second sub-pixels configured to display green, a plurality of third sub-pixels configured to display blue, and a plurality of fourth sub-pixels configured to display white, a first signal line coupled to the first sub-pixels, a second signal line coupled to the second sub-pixels, and a third signal line coupled to the third sub-pixels and the fourth sub-pixels, a plurality of detection electrodes arrayed in a matrix (row-column configuration) and each provided overlapping the first sub-pixels, the second sub-pixels, the third sub-pixels, and the fourth sub-pixels, and a plurality of signal supply wires coupled to the respective detection electrodes. The signal supply wires are each provided overlapping at least one of the first signal line and the second signal line and not overlapping the third signal line.
    Type: Grant
    Filed: June 24, 2021
    Date of Patent: June 13, 2023
    Assignee: Japan Display Inc.
    Inventor: Gen Koide