Patents by Inventor Nobutaka Ozaki

Nobutaka Ozaki 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: 20240088164
    Abstract: A display device including a plurality of pixels arranged in a matrix on a substrate along a first direction and a second direction intersecting the first direction, wherein each of the plurality of pixels includes a transistor, a first transparent conductive layer arranged over the transistor and electrically connected to the transistor, a first insulating layer arranged over the first transparent conductive layer, a second transparent conductive layer arranged in the first insulating layer and electrically connected to the first transparent conductive layer via an opening extending over the plurality of pixels arranged in line in the first direction, a filling member arranged over the second transparent conductive layer to fill the interior of the opening, a third transparent conductive layer arranged on the first insulating layer and the filling member, and a metal layer in contact with the third transparent electrode.
    Type: Application
    Filed: September 8, 2023
    Publication date: March 14, 2024
    Inventors: Nobutaka OZAKI, Yoshitaka OZEKI, Koshiro MORIGUCHI
  • Publication number: 20240045295
    Abstract: A display device includes a first transistor provided with an oxide semiconductor layer, a first gate wiring facing the oxide semiconductor layer and a first gate insulating layer between the oxide semiconductor layer and the first gate wiring, a first transparent conductive layer provided on at least a first insulating layer on the first transistor, the first transparent conductive layer having an area overlapping the gate wiring and being in contact with the oxide semiconductor layer in a first contact area not overlapping the gate wiring, a second transparent conductive layer provided above at least a second insulating layer on the first transparent conductive layer and being in contact with the first transparent conductive layer at a second contact area overlapping the gate wiring, and a third transparent conductive layer provided between the second transparent conductive layer and the second insulating layer.
    Type: Application
    Filed: October 19, 2023
    Publication date: February 8, 2024
    Inventors: Yoshitaka OZEKI, Nobutaka OZAKI, Koshiro MORIGUCHI
  • Publication number: 20240019745
    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 insulatin 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: Application
    Filed: September 26, 2023
    Publication date: January 18, 2024
    Inventors: Yoshitaka OZEKI, Gen KOIDE, Nobutaka OZAKI, Koshiro MORIGUCHI
  • Publication number: 20230389370
    Abstract: A display device includes: an oxide semiconductor layer; a gate electrode facing the oxide semiconductor layer; a gate insulating layer between the oxide semiconductor layer and the gate electrode; a light-shielding layer overlapping part of the oxide semiconductor layer in a plan view; a first insulating layer covering the oxide semiconductor layer, the gate electrode, and the gate insulating layer, the first insulating layer including a first opening including a first side wall overlapping the light-shielding layer and a second side wall not overlapping the light-shielding layer in a plan view; and a transparent conductive layer arranged above the first insulating layer and connected to the oxide semiconductor layer via the first opening. The transparent conductive layer is arranged in an area overlapping the first side wall and is not arranged in at least part in an area overlapping the second side wall in a plan view.
    Type: Application
    Filed: May 26, 2023
    Publication date: November 30, 2023
    Inventors: Yoshitaka OZEKI, Nobutaka OZAKI
  • Patent number: 11829042
    Abstract: A display device includes a first transistor provided with an oxide semiconductor layer, a first gate wiring facing the oxide semiconductor layer and a first gate insulating layer between the oxide semiconductor layer and the first gate wiring, a first transparent conductive layer provided on at least a first insulating layer on the first transistor, the first transparent conductive layer having an area overlapping the gate wiring and being in contact with the oxide semiconductor layer in a first contact area not overlapping the gate wiring, a second transparent conductive layer provided above at least a second insulating layer on the first transparent conductive layer and being in contact with the first transparent conductive layer at a second contact area overlapping the gate wiring, and a third transparent conductive layer provided between the second transparent conductive layer and the second insulating layer.
    Type: Grant
    Filed: December 19, 2022
    Date of Patent: November 28, 2023
    Assignee: Japan Display Inc.
    Inventors: Yoshitaka Ozeki, Nobutaka Ozaki, Koshiro Moriguchi
  • 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
  • Publication number: 20230253411
    Abstract: A display device includes a first transistor having an oxide semiconductor layer, a gate wiring opposite the oxide semiconductor layer, a gate insulating layer between the semiconductor layer and the gate wiring, a first insulating layer including at least one insulating layer having a first contact hole outside the gate wiring, a planarization film having a second contact hole overlapping the first contact hole, a first transparent conductive layer including an area overlapping the gate wiring, a second insulating layer covering a side of the second contact hole, a second transparent conductive layer in contact with the oxide semiconductor layer through the first and second contact hole, a first resin filling the first and second contact hole coated by the second transparent conductive layer, and a third transparent conductive layer on the second transparent conductive layer and the first resin.
    Type: Application
    Filed: April 19, 2023
    Publication date: August 10, 2023
    Inventors: Yoshitaka OZEKI, Nobutaka OZAKI, Koshiro MORIGUCHI
  • Publication number: 20230205020
    Abstract: According to one embodiment, a display device includes a substrate, a switching element provided on the substrate and including a relay electrode, a first electrode provided further away from the substrate than the switching element, a first insulating film provided on the first electrode and having a first thickness, a second electrode provided on the first insulating film, a second insulating film provided on the second electrode and having a second thickness and a third electrode provided on the second insulating film and supplied with a same potential as that of the first electrode. The second thickness is greater than the first thickness.
    Type: Application
    Filed: March 1, 2023
    Publication date: June 29, 2023
    Applicant: Japan Display Inc.
    Inventors: Yoshitaka OZEKI, Seiji UEJIMA, Nobutaka OZAKI
  • Patent number: 11664385
    Abstract: A display device includes a first transistor having an oxide semiconductor layer, a gate wiring opposite the oxide semiconductor layer, a gate insulating layer between the semiconductor layer and the gate wiring, a first insulating layer including at least one insulating layer having a first contact hole outside the gate wiring, a planarization film having a second contact hole overlapping the first contact hole, a first transparent conductive layer including an area overlapping the gate wiring, a second insulating layer covering a side of the second contact hole, a second transparent conductive layer in contact with the oxide semiconductor layer through the first and second contact hole, a first resin filling the first and second contact hole coated by the second transparent conductive layer, and a third transparent conductive layer on the second transparent conductive layer and the first resin.
    Type: Grant
    Filed: September 28, 2022
    Date of Patent: May 30, 2023
    Assignee: Japan Display Inc.
    Inventors: Yoshitaka Ozeki, Nobutaka Ozaki, Koshiro Moriguchi
  • Publication number: 20230123073
    Abstract: A display device includes a first transistor provided with an oxide semiconductor layer, a first gate wiring facing the oxide semiconductor layer and a first gate insulating layer between the oxide semiconductor layer and the first gate wiring, a first transparent conductive layer provided on at least a first insulating layer on the first transistor, the first transparent conductive layer having an area overlapping the gate wiring and being in contact with the oxide semiconductor layer in a first contact area not overlapping the gate wiring, a second transparent conductive layer provided above at least a second insulating layer on the first transparent conductive layer and being in contact with the first transparent conductive layer at a second contact area overlapping the gate wiring, and a third transparent conductive layer provided between the second transparent conductive layer and the second insulating layer.
    Type: Application
    Filed: December 19, 2022
    Publication date: April 20, 2023
    Inventors: Yoshitaka OZEKI, Nobutaka OZAKI, Koshiro MORIGUCHI
  • Patent number: 11630353
    Abstract: According to one embodiment, a display device includes a substrate, a switching element provided on the substrate and including a relay electrode, a first electrode provided further away from the substrate than the switching element, a first insulating film provided on the first electrode and having a first thickness, a second electrode provided on the first insulating film, a second insulating film provided on the second electrode and having a second thickness and a third electrode provided on the second insulating film and supplied with a same potential as that of the first electrode. The second thickness is greater than the first thickness.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: April 18, 2023
    Assignee: Japan Display Inc.
    Inventors: Yoshitaka Ozeki, Seiji Uejima, Nobutaka Ozaki
  • Publication number: 20230106954
    Abstract: A display device includes a first transistor having an oxide semiconductor layer, a gate wiring opposite the oxide semiconductor layer, a gate insulating layer between the semiconductor layer and the gate wiring, a first insulating layer including at least one insulating layer having a first contact hole outside the gate wiring, a planarization film having a second contact hole overlapping the first contact hole, a first transparent conductive layer including an area overlapping the gate wiring, a second insulating layer covering a side of the second contact hole, a second transparent conductive layer in contact with the oxide semiconductor layer through the first and second contact hole, a first resin filling the first and second contact hole coated by the second transparent conductive layer, and a third transparent conductive layer on the second transparent conductive layer and the first resin.
    Type: Application
    Filed: September 28, 2022
    Publication date: April 6, 2023
    Inventors: Yoshitaka OZEKI, Nobutaka OZAKI, Koshiro MORIGUCHI
  • Patent number: 11561445
    Abstract: A display device includes a first transistor provided with an oxide semiconductor layer, a first gate wiring facing the oxide semiconductor layer and a first gate insulating layer between the oxide semiconductor layer and the first gate wiring, a first transparent conductive layer provided on at least a first insulating layer on the first transistor, the first transparent conductive layer having an area overlapping the gate wiring and being in contact with the oxide semiconductor layer in a first contact area not overlapping the gate wiring, a second transparent conductive layer provided above at least a second insulating layer on the first transparent conductive layer and being in contact with the first transparent conductive layer at a second contact area overlapping the gate wiring, and a third transparent conductive layer provided between the second transparent conductive layer and the second insulating layer.
    Type: Grant
    Filed: March 25, 2022
    Date of Patent: January 24, 2023
    Assignee: Japan Display Inc.
    Inventors: Yoshitaka Ozeki, Nobutaka Ozaki, Koshiro Moriguchi
  • Patent number: 11500250
    Abstract: A display device is provided and includes first signal line between first and second pixel areas in first direction; first switching element in first pixel area, first switching element including first relay electrode in first pixel area; second switching element in second pixel area, second switching element including second relay electrode in second pixel area; first pixel electrode in the first pixel area; and second pixel electrode in second pixel area, wherein first pixel electrode includes first connector, second pixel electrode includes second connector, first and second connectors are arranged in first direction with first signal line interposed therebetween, gap width between first connector and first signal line is different from gap width between first signal line and second connector, and gap width between first relay electrode and first signal line is different from gap width between first signal line and second relay electrode.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: November 15, 2022
    Assignee: Japan Display Inc.
    Inventors: Mitsufumi Sogabe, Yoshitaka Ozeki, Nobutaka Ozaki
  • Publication number: 20220308379
    Abstract: A display device includes a first transistor provided with an oxide semiconductor layer, a first gate wiring facing the oxide semiconductor layer and a first gate insulating layer between the oxide semiconductor layer and the first gate wiring, a first transparent conductive layer provided on at least a first insulating layer on the first transistor, the first transparent conductive layer having an area overlapping the gate wiring and being in contact with the oxide semiconductor layer in a first contact area not overlapping the gate wiring, a second transparent conductive layer provided above at least a second insulating layer on the first transparent conductive layer and being in contact with the first transparent conductive layer at a second contact area overlapping the gate wiring, and a third transparent conductive layer provided between the second transparent conductive layer and the second insulating layer.
    Type: Application
    Filed: March 25, 2022
    Publication date: September 29, 2022
    Inventors: Yoshitaka OZEKI, Nobutaka OZAKI, Koshiro MORIGUCHI
  • Publication number: 20220308377
    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: Application
    Filed: February 17, 2022
    Publication date: September 29, 2022
    Inventors: Yoshitaka OZEKI, Gen KOIDE, Nobutaka OZAKI, Koshiro MORIGUCHI
  • Publication number: 20220050344
    Abstract: According to one embodiment, a display device includes a first substrate and a second substrate opposed to the first substrate. The first substrate includes an insulating substrate, a switching element located on the insulating substrate and having a relay electrode, an organic insulating film covering the switching element and having a first through-hole penetrating to the relay electrode, a pixel electrode being in contact with the relay electrode via the first through-hole, a first capacitance insulating film covering the pixel electrode, a filler having an insulation property filled in at least the first through-hole and located on the pixel electrode and the first capacitance insulating film, and a common electrode covering the filler.
    Type: Application
    Filed: October 26, 2021
    Publication date: February 17, 2022
    Inventors: Yoshitaka OZEKI, Nobutaka OZAKI
  • Publication number: 20210389618
    Abstract: According to one embodiment, a display device includes a substrate, a switching element provided on the substrate and including a relay electrode, a first electrode provided further away from the substrate than the switching element, a first insulating film provided on the first electrode and having a first thickness, a second electrode provided on the first insulating film, a second insulating film provided on the second electrode and having a second thickness and a third electrode provided on the second insulating film and supplied with a same potential as that of the first electrode. The second thickness is greater than the first thickness.
    Type: Application
    Filed: August 30, 2021
    Publication date: December 16, 2021
    Applicant: Japan Display Inc.
    Inventors: Yoshitaka OZEKI, Seiji UEJIMA, Nobutaka OZAKI
  • Patent number: 11143922
    Abstract: According to one embodiment, a display device includes a substrate, a switching element provided on the substrate and including a relay electrode, a first electrode provided further away from the substrate than the switching element, a first insulating film provided on the first electrode and having a first thickness, a second electrode provided on the first insulating film, a second insulating film provided on the second electrode and having a second thickness and a third electrode provided on the second insulating film and supplied with a same potential as that of the first electrode. The second thickness is greater than the first thickness.
    Type: Grant
    Filed: July 6, 2020
    Date of Patent: October 12, 2021
    Assignee: Japan Display Inc.
    Inventors: Yoshitaka Ozeki, Seiji Uejima, Nobutaka Ozaki
  • Patent number: 11126052
    Abstract: According to an aspect, an array substrate includes: a substrate; a light-shielding layer; a first gate electrode; a semiconductor layer; a signal line; and an electrode. A first surface of the substrate is provided with, in sequence, the light-shielding layer, the first gate electrode, the semiconductor layer, the signal line, and the electrode. The semiconductor layer includes a first impurity region electrically coupled to the electrode, a first channel region overlapping the first gate electrode, a second impurity region opposite to the first impurity region with respect to the first channel region, and a first lightly doped drain region between the first impurity region and the first channel region. The light-shielding layer has a first end and a second end opposite to each other. The first end overlaps the first channel region. The light-shielding layer overlaps a boundary between the first channel region and the first lightly doped drain region.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: September 21, 2021
    Assignee: Japan Display Inc.
    Inventors: Yoshitaka Ozeki, Gen Koide, Nobutaka Ozaki