Patents by Inventor Yasukazu Kimura

Yasukazu Kimura 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: 20220077266
    Abstract: A display device includes a substrate having flexibility, a transistor having agate insulating film and further having a semiconductor layer and a gate electrode that sandwich the gate insulating film, the transistor formed in an area where the substrate is bent, and a gate wiring line so formed on the substrate as to be connected to the gate electrode, and the gate electrode has an area that is present in an area where the gate electrode overlaps with the semiconductor layer and is thinner than at least part of the gate wiring line.
    Type: Application
    Filed: November 19, 2021
    Publication date: March 10, 2022
    Applicant: Japan Display Inc.
    Inventors: Yasukazu KIMURA, Masato HIRAMATSU, Takuma NISHINOHARA, Toshihiko ITOGA
  • Patent number: 11217646
    Abstract: A display device includes a substrate having flexibility, a transistor having a gate insulating film and further having a semiconductor layer and a gate electrode that sandwich the gate insulating film, the transistor formed in an area where the substrate is bent, and a gate wiring line so formed on the substrate as to be connected to the gate electrode, and the gate electrode has an area that is present in an area where the gate electrode overlaps with the semiconductor layer and is thinner than at least part of the gate wiring line.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: January 4, 2022
    Assignee: Japan Display Inc.
    Inventors: Yasukazu Kimura, Masato Hiramatsu, Takuma Nishinohara, Toshihiko Itoga
  • Patent number: 10777625
    Abstract: A display device including a plurality of first electrodes arranged in a display region above a substrate, each of the plurality of first electrodes being in common with n (n is an integer of 2 or more number of light emitting elements, a bank having a recess part and partitioning the n number of light emitting elements with the recess part as a boundary in each of the plurality of first electrodes, a light emitting layer arranged above the plurality of first electrodes throughout the display region, and n groups of second electrodes arranged above the light emitting layer and electrically separated with the recess part as a boundary.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: September 15, 2020
    Assignee: Japan Display Inc.
    Inventors: Yasukazu Kimura, Toshihiro Sato
  • Publication number: 20200135828
    Abstract: A display device includes a substrate having flexibility, a transistor having a gate insulating film and further having a semiconductor layer and a gate electrode that sandwich the gate insulating film, the transistor formed in an area where the substrate is bent, and a gate wiring line so formed on the substrate as to be connected to the gate electrode, and the gate electrode has an area that is present in an area where the gate electrode overlaps with the semiconductor layer and is thinner than at least part of the gate wiring line.
    Type: Application
    Filed: December 31, 2019
    Publication date: April 30, 2020
    Applicant: Japan Display Inc.
    Inventors: Yasukazu KIMURA, Masato HIRAMATSU, Takuma NISHINOHARA, Toshihiko ITOGA
  • Patent number: 10586839
    Abstract: A display device includes: a flexible substrate; a pixel over the flexible substrate, the pixel including a transistor and a display element; a first wiring for transmitting a signal to the pixel, the first wiring extending in a first direction; a second wiring extending in a second direction intersecting the first direction; an inorganic insulating layer on a higher level than the first wiring or the second wiring; and an organic insulating layer on a higher level than the inorganic insulating layer, wherein the inorganic insulating layer has an opening exposing a part of the upper surface of the first wiring or the second wiring is exposed, and the organic insulating layer is provided in such a way as to fill the opening.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: March 10, 2020
    Assignee: Japan Display Inc.
    Inventors: Yasukazu Kimura, Takuma Nishinohara, Toshihiko Itoga, Hajime Akimoto
  • Patent number: 10566567
    Abstract: A display device includes a thin film transistor; a first organic insulating film covering the thin film transistor and containing a resin material; an inorganic insulating film on the first organic insulating film; a pixel electrode electrically connected with the thin film transistor; a second organic insulating film covering an end of the pixel electrode and exposing a top surface of the pixel electrode; and an organic layer provided on the top surface of the pixel electrode and including a light emitting layer. As seen in a plan view, the inorganic insulating film has an opening, overlapping the second organic insulating film, at a position not overlapping an opening provided in the first organic insulating film. The first and second organic insulating films face each other in the opening in the inorganic insulating film, with an oxide conductive film being between the first and second organic insulating films.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: February 18, 2020
    Assignee: Japan Display Inc.
    Inventors: Yasukazu Kimura, Shigeru Sakamoto
  • Patent number: 10566400
    Abstract: A display device includes a substrate having flexibility, a transistor having a gate insulating film and further having a semiconductor layer and a gate electrode that sandwich the gate insulating film, the transistor formed in an area where the substrate is bent, and a gate wiring line so formed on the substrate as to be connected to the gate electrode, and the gate electrode has an area that is present in an area where the gate electrode overlaps with the semiconductor layer and is thinner than at least part of the gate wiring line.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: February 18, 2020
    Assignee: Japan Display Inc.
    Inventors: Yasukazu Kimura, Masato Hiramatsu, Takuma Nishinohara, Toshihiko Itoga
  • Publication number: 20190312092
    Abstract: A display device includes: a flexible substrate; a pixel over the flexible substrate, the pixel including a transistor and a display element; a first wiring for transmitting a signal to the pixel, the first wiring extending in a first direction; a second wiring extending in a second direction intersecting the first direction; an inorganic insulating layer on a higher level than the first wiring or the second wiring; and an organic insulating layer on a higher level than the inorganic insulating layer, wherein the inorganic insulating layer has an opening exposing a part of the upper surface of the first wiring or the second wiring is exposed, and the organic insulating layer is provided in such a way as to fill the opening.
    Type: Application
    Filed: June 25, 2019
    Publication date: October 10, 2019
    Inventors: Yasukazu KIMURA, Takuma NISHINOHARA, Toshihiko ITOGA, Hajime AKIMOTO
  • Patent number: 10374023
    Abstract: A display device includes: a flexible substrate; a pixel over the flexible substrate, the pixel including a transistor and a display element; a first wiring for transmitting a signal to the pixel, the first wiring extending in a first direction; a second wiring extending in a second direction intersecting the first direction; an inorganic insulating layer on a higher level than the first wiring or the second wiring; and an organic insulating layer on a higher level than the inorganic insulating layer, wherein the inorganic insulating layer has an opening exposing a part of the upper surface of the first wiring or the second wiring is exposed, and the organic insulating layer is provided in such a way as to fill the opening.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: August 6, 2019
    Assignee: Japan Display Inc.
    Inventors: Yasukazu Kimura, Takuma Nishinohara, Toshihiko Itoga, Hajime Akimoto
  • Publication number: 20190103451
    Abstract: A display device including a plurality of first electrodes arranged in a display region above a substrate, each of the plurality of first electrodes being in common with n (n is an integer of 2 or more number of light emitting elements, a bank having a recess part and partitioning the n number of light emitting elements with the recess part as a boundary in each of the plurality of first electrodes, a light emitting layer arranged above the plurality of first electrodes throughout the display region, and n groups of second electrodes arranged above the light emitting layer and electrically separated with the recess part as a boundary.
    Type: Application
    Filed: December 3, 2018
    Publication date: April 4, 2019
    Inventors: Yasukazu Kimura, Toshihiro Sato
  • Patent number: 10177205
    Abstract: A display device including a plurality of first electrodes arranged in a display region above a substrate, each of the plurality of first electrodes being in common with n (n is an integer of 2 or more) number of light emitting elements, a bank having a recess part and partitioning the n number of light emitting elements with the recess part as a boundary in each of the plurality of first electrodes, a light emitting layer arranged above the plurality of first electrodes throughout the display region, and n groups of second electrodes arranged above the light emitting layer and electrically separated with the recess part as a boundary.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: January 8, 2019
    Assignee: Japan Display Inc.
    Inventors: Yasukazu Kimura, Toshihiro Sato
  • Patent number: 10135014
    Abstract: Disclosed is a display device, including a first substrate having flexibility including a pixel region and a frame region around the pixel region, a pixel arranged on a first surface of the first substrate in the pixel region, and a terminal section arranged in the frame region and connected to the pixel, in which the first substrate includes an adjustment region between the pixel and the terminal section, the adjustment region having a different Young's modulus from those of the pixel region and the frame region.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: November 20, 2018
    Assignee: Japan Display Inc.
    Inventors: Takuma Nishinohara, Yasukazu Kimura
  • Publication number: 20180198084
    Abstract: A display device includes a thin film transistor; a first organic insulating film covering the thin film transistor and containing a resin material; an inorganic insulating film on the first organic insulating film; a pixel electrode electrically connected with the thin film transistor; a second organic insulating film covering an end of the pixel electrode and exposing a top surface of the pixel electrode; and an organic layer provided on the top surface of the pixel electrode and including a light emitting layer. As seen in a plan view, the inorganic insulating film has an opening, overlapping the second organic insulating film, at a position not overlapping an opening provided in the first organic insulating film. The first and second organic insulating films face each other in the opening in the inorganic insulating film, with an oxide conductive film being between the first and second organic insulating films.
    Type: Application
    Filed: December 20, 2017
    Publication date: July 12, 2018
    Inventors: Yasukazu KIMURA, Shigeru SAKAMOTO
  • Patent number: 9972667
    Abstract: A display device includes a substrate having an insulating surface; a plurality of pixel electrodes on the insulating surface, the plurality of pixel electrodes located away from each other; a first insulating layer covering an end of each of the pixel electrodes and exposing a part of a top surface of each of the pixel electrodes; and an organic layer provided on each of the pixel electrodes, the organic layer including a light emitting layer. As seen in a plan view, the first insulating layer includes a plurality of first regions, each of the plurality of first regions being around the exposed part of the top surface of the pixel electrodes, and a second region located between two adjacent first regions, the second region including a recessed portion.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: May 15, 2018
    Assignee: Japan Display Inc.
    Inventors: Yasukazu Kimura, Takuma Nishinohara, Toshihiko Itoga, Hajime Akimoto
  • Publication number: 20180097048
    Abstract: A display device includes a substrate having an insulating surface; a plurality of pixel electrodes on the insulating surface, the plurality of pixel electrodes located away from each other; a first insulating layer covering an end of each of the pixel electrodes and exposing a part of a top surface of each of the pixel electrodes; and an organic layer provided on each of the pixel electrodes, the organic layer including a light emitting layer. As seen in a plan view, the first insulating layer includes a plurality of first regions, each of the plurality of first regions being around the exposed part of the top surface of the pixel electrodes, and a second region located between two adjacent first regions, the second region including a recessed portion.
    Type: Application
    Filed: September 12, 2017
    Publication date: April 5, 2018
    Inventors: Yasukazu Kimura, Takuma Nishinohara, Toshihiko Itoga, Hajime Akimoto
  • Patent number: 9933668
    Abstract: Display device, including: substrates, color filters having first and second color filters, drain and gate signal lines (of light blocking material), wherein, an overlapping portion adjacent the first and second color filter overlap, is formed on a region with one of the drain or gate signal lines, a first color filter edge is a first taper and a second color filter edge is a second taper, in the overlapping portion, the first taper is closer to the drain or gate signal line than the second taper in the overlapping portion, the first taper angle is 45° or more and 90° or less corresponding to a surface of the drain or gate signal line, the second taper angle is 45° or more and 90° or less corresponding to a surface of the first taper and, the first taper angle is larger than the second taper angle.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: April 3, 2018
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Co. Lt.
    Inventors: Yasuhiro Mizuno, Junji Tanno, Shinsuke Hayahara, Masato Sakurai, Yasukazu Kimura, Jun Fujiyoshi
  • Publication number: 20180090700
    Abstract: Disclosed is a display device, including a first substrate having flexibility including a pixel region and a frame region around the pixel region, a pixel arranged on a first surface of the first substrate in the pixel region, and a terminal section arranged in the frame region and connected to the pixel, in which the first substrate includes an adjustment region between the pixel and the terminal section, the adjustment region having a different Young's modulus from those of the pixel region and the frame region.
    Type: Application
    Filed: August 25, 2017
    Publication date: March 29, 2018
    Inventors: Takuma NISHINOHARA, Yasukazu KIMURA
  • Publication number: 20180069066
    Abstract: A display device includes: a flexible substrate; a pixel over the flexible substrate, the pixel including a transistor and a display element; a first wiring for transmitting a signal to the pixel, the first wiring extending in a first direction; a second wiring extending in a second direction intersecting the first direction; an inorganic insulating layer on a higher level than the first wiring or the second wiring; and an organic insulating layer on a higher level than the inorganic insulating layer, wherein the inorganic insulating layer has an opening exposing a part of the upper surface of the first wiring or the second wiring is exposed, and the organic insulating layer is provided in such a way as to fill the opening.
    Type: Application
    Filed: October 31, 2017
    Publication date: March 8, 2018
    Inventors: Yasukazu KIMURA, Takuma NISHINOHARA, Toshihiko ITOGA, Hajime AKIMOTO
  • Patent number: 9837475
    Abstract: A display device includes: a flexible substrate; a pixel over the flexible substrate, the pixel including a transistor and a display element; a first wiring for transmitting a signal to the pixel, the first wiring extending in a first direction; a second wiring extending in a second direction intersecting the first direction; an inorganic insulating layer on a higher level than the first wiring or the second wiring; and an organic insulating layer on a higher level than the inorganic insulating layer, wherein the inorganic insulating layer has an opening exposing a part of the upper surface of the first wiring or the second wiring is exposed, and the organic insulating layer is provided in such a way as to fill the opening.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: December 5, 2017
    Assignee: Japan Display Inc.
    Inventors: Yasukazu Kimura, Takuma Nishinohara, Toshihiko Itoga, Hajime Akimoto
  • Patent number: 9831450
    Abstract: A display device includes a first organic layer, a first inorganic layer, a second organic layer, a second inorganic layer, and a thin film transistor. The first organic layer has a roughened top surface. The first inorganic layer has a roughened top surface and is disposed to have a roughened bottom surface that is in contact with the roughened top surface of the first organic layer. The second organic layer has a roughened bottom surface that is in contact with the roughened top surface of the first inorganic layer. The second inorganic layer is disposed to be in contact with the top surface of the second organic layer. The thin film transistor is disposed on the top surface of the second inorganic layer.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: November 28, 2017
    Assignee: Japan Display Inc.
    Inventors: Takuma Nishinohara, Yasukazu Kimura, Jun Fujiyoshi