Patents by Inventor Naoya Kasahara

Naoya Kasahara 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: 20240088159
    Abstract: A display unit of the present disclosure includes a plurality of pixel circuits each including a light-emitting element, a drive transistor that has a drain and a source and supplies a current to the light-emitting element, and a control transistor connected to the drain or the source of the drive transistor. One channel portion is formed for two control transistors in respective adjacent two of the pixel circuits.
    Type: Application
    Filed: August 21, 2023
    Publication date: March 14, 2024
    Inventors: Naoya Kasahara, Michihiro Kanno
  • Publication number: 20240074283
    Abstract: Provided is a light emitting and receiving device capable of causing light to exit to outside and receiving light from outside. The light emitting and receiving device includes a plurality of light emitting elements and a plurality of light receiving elements. The plurality of light emitting elements is two-dimensionally arranged separately. The plurality of light receiving elements is two-dimensionally arranged at a height different from a height of the plurality of light emitting elements, and each light receiving element faces an inter-element separation portion between adjacent light emitting elements.
    Type: Application
    Filed: January 13, 2022
    Publication date: February 29, 2024
    Inventors: TAKEO TSUKAMOTO, NAOYA KASAHARA
  • Publication number: 20240057370
    Abstract: A light emitting element, display device, and method of manufacture of the same are disclosed. In one example, a light emitting element includes a lower layer/interlayer insulation layer; a light reflection layer formed on the lower layer/interlayer insulation layer; an upper layer/interlayer insulation layer; a first electrode formed on the upper layer/interlayer insulation layer; an insulation film formed at least on a region of the upper layer/interlayer insulation layer where the first electrode is not formed; an organic layer formed over the insulation film from above the first electrode, the organic layer having a light emitting layer including an organic light emitting material; and a second electrode formed on the organic layer. A groove is formed in a portion of the upper layer/interlayer insulation layer located in an edge region of the light emitting element, and an upper portion of the groove is closed with the insulation film.
    Type: Application
    Filed: July 7, 2023
    Publication date: February 15, 2024
    Inventors: Takayoshi Kato, Naoya Kasahara, Shimpei Tsujikawa
  • Patent number: 11889722
    Abstract: A display device of the present disclosure includes: an organic EL layer deposited on a circuit unit formed on a substrate via an insulating film; a cathode electrode deposited on the organic EL layer; a groove formed along a direction of arrangement of pixels between the pixels in the insulating film; and a contact electrode that is provided at a bottom of the groove and receives a predetermined potential. Moreover, the cathode electrode is electrically connected to the contact electrode in the groove.
    Type: Grant
    Filed: December 6, 2021
    Date of Patent: January 30, 2024
    Assignee: Sony Group Corporation
    Inventor: Naoya Kasahara
  • Publication number: 20230413609
    Abstract: Provided is a display device capable of suppressing fluctuation in light emission luminance. A display device includes: a first electrode layer having a plurality of electrodes arranged two-dimensionally; a second electrode layer provided to face the first electrode layer; an electroluminescence layer provided between the first electrode layer and the second electrode layer; and an insulating layer provided between adjacent electrodes. The insulating layer has a plurality of openings, and each of the plurality of openings is provided corresponding to each of the electrodes. The insulating layer includes a plurality of localized portions, and each of the plurality of localized portions is localized around each of the openings. The insulating layer forms a potential barrier between the electroluminescence layer and the localized portion.
    Type: Application
    Filed: November 11, 2021
    Publication date: December 21, 2023
    Inventors: Naoya Kasahara, Takeo Tsukamoto
  • Publication number: 20230397474
    Abstract: A display apparatus includes display elements formed on a substrate and arrayed in a two-dimensional matrix, the display elements each having a light emitting unit formed by stacking a lower electrode, an organic layer, and an upper electrode, wherein the lower electrode and the organic layer are provided for each light emitting unit, the substrate includes a groove formed in a part of the substrate positioned between adjacent light emitting units, the groove having a bottom surface and both side surfaces forming a gentle inclination angle with respect to the bottom surface, and a protective film is formed in common on entire surface including an upper surface of the light emitting unit and an upper surface of the groove of the substrate.
    Type: Application
    Filed: November 18, 2021
    Publication date: December 7, 2023
    Inventors: Tomoaki Sawabe, Takashi Yamazaki, Yu Kato, Naoya Kasahara, Masaya Ogura, Masashi Uchida
  • Patent number: 11798951
    Abstract: A display unit of the present disclosure includes a plurality of pixel circuits each including a light-emitting element, a drive transistor that has a drain and a source and supplies a current to the light-emitting element, and a control transistor connected to the drain or the source of the drive transistor. One channel portion is formed for two control transistors in respective adjacent two of the pixel circuits.
    Type: Grant
    Filed: October 26, 2021
    Date of Patent: October 24, 2023
    Assignee: Sony Group Corporation
    Inventors: Naoya Kasahara, Michihiro Kanno
  • Patent number: 11765923
    Abstract: A light emitting element, display device, and method of manufacture of the same are disclosed. In one example, a light emitting element includes a lower layer/interlayer insulation layer; a light reflection layer formed on the lower layer/interlayer insulation layer; an upper layer/interlayer insulation layer; a first electrode formed on the upper layer/interlayer insulation layer; an insulation film formed at least on a region of the upper layer/interlayer insulation layer where the first electrode is not formed; an organic layer formed over the insulation film from above the first electrode, the organic layer having a light emitting layer including an organic light emitting material; and a second electrode formed on the organic layer. A groove is formed in a portion of the upper layer/interlayer insulation layer located in an edge region of the light emitting element, and an upper portion of the groove is closed with the insulation film.
    Type: Grant
    Filed: May 6, 2021
    Date of Patent: September 19, 2023
    Assignee: Sony Group Corporation
    Inventors: Takayoshi Kato, Naoya Kasahara, Shimpei Tsujikawa
  • Publication number: 20230109576
    Abstract: A display device includes an anode electrode, an organic light emitting layer, and a first cathode electrode. Provided are a plurality of light emitting elements in which the anode electrode, the organic light emitting layer, and the first cathode are separated for each sub-pixel, a protective layer covering the plurality of light emitting elements, and a second cathode electrode provided on the protective layer. The second cathode electrode is connected to each separated first cathode electrode.
    Type: Application
    Filed: March 31, 2021
    Publication date: April 6, 2023
    Inventors: Masashi Uchida, Yu Kato, Naoya Kasahara, Takashi Yamazaki, Tomokazu Ohchi
  • Publication number: 20220190076
    Abstract: A display device of the present disclosure includes: an organic EL layer deposited on a circuit unit formed on a substrate via an insulating film; a cathode electrode deposited on the organic EL layer; a groove formed along a direction of arrangement of pixels between the pixels in the insulating film; and a contact electrode that is provided at a bottom of the groove and receives a predetermined potential. Moreover, the cathode electrode is electrically connected to the contact electrode in the groove.
    Type: Application
    Filed: December 6, 2021
    Publication date: June 16, 2022
    Inventor: Naoya Kasahara
  • Publication number: 20220173127
    Abstract: A display unit of the present disclosure includes a plurality of pixel circuits each including a light-emitting element, a drive transistor that has a drain and a source and supplies a current to the light-emitting element, and a control transistor connected to the drain or the source of the drive transistor. One channel portion is formed for two control transistors in respective adjacent two of the pixel circuits.
    Type: Application
    Filed: October 26, 2021
    Publication date: June 2, 2022
    Inventors: Naoya Kasahara, Michihiro Kanno
  • Publication number: 20220029123
    Abstract: A light emitting element, display device, and method of manufacture of the same are disclosed. In one example, a light emitting element includes a lower layer/interlayer insulation layer; a light reflection layer formed on the lower layer/interlayer insulation layer; an upper layer/interlayer insulation layer; a first electrode formed on the upper layer/interlayer insulation layer; an insulation film formed at least on a region of the upper layer/interlayer insulation layer where the first electrode is not formed; an organic layer formed over the insulation film from above the first electrode, the organic layer having a light emitting layer including an organic light emitting material; and a second electrode formed on the organic layer. A groove is formed in a portion of the upper layer/interlayer insulation layer located in an edge region of the light emitting element, and an upper portion of the groove is closed with the insulation film.
    Type: Application
    Filed: May 6, 2021
    Publication date: January 27, 2022
    Inventors: Takayoshi Kato, Naoya Kasahara, Shimpei Tsujikawa
  • Patent number: 11211440
    Abstract: A display device of the present disclosure includes: an organic EL layer deposited on a circuit unit formed on a substrate via an insulating film; a cathode electrode deposited on the organic EL layer; a groove formed along a direction of arrangement of pixels between the pixels in the insulating film; and a contact electrode that is provided at a bottom of the groove and receives a predetermined potential. Moreover, the cathode electrode is electrically connected to the contact electrode in the groove.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: December 28, 2021
    Assignee: Sony Group Corporation
    Inventor: Naoya Kasahara
  • Patent number: 11195860
    Abstract: A display unit of the present disclosure includes a plurality of pixel circuits each including a light-emitting element, a drive transistor that has a drain and a source and supplies a current to the light-emitting element, and a control transistor connected to the drain or the source of the drive transistor. One channel portion is formed for two control transistors in respective adjacent two of the pixel circuits.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: December 7, 2021
    Assignee: Sony Group Corporation
    Inventors: Naoya Kasahara, Michihiro Kanno
  • Publication number: 20210351266
    Abstract: A light-emitting element according to the present disclosure includes an anode electrode portion having a projecting-shaped side wall portion formed along a peripheral edge portion of an organic EL pixel, an insulating film layer configured to cover an outer edge portion of the anode electrode portion so as to cover a side wall of the side wall portion on a light emitting unit side of the organic EL pixel in a predetermined film thickness, an organic EL layer layered so as to cover the insulating film layer and an upper surface of the anode electrode portion, and a cathode electrode portion layered over an upper surface of the organic EL layer.
    Type: Application
    Filed: November 14, 2019
    Publication date: November 11, 2021
    Inventors: Naoya Kasahara, Akira Watanabe
  • Patent number: 11024823
    Abstract: A light emitting element, display device, and method of manufacture of the same are disclosed. In one example, a light emitting element includes a lower layer/interlayer insulation layer; a light reflection layer formed on the lower layer/interlayer insulation layer; an upper layer/interlayer insulation layer; a first electrode formed on the upper layer/interlayer insulation layer; an insulation film formed at least on a region of the upper layer/interlayer insulation layer where the first electrode is not formed; an organic layer formed over the insulation film from above the first electrode, the organic layer having a light emitting layer including an organic light emitting material; and a second electrode formed on the organic layer. A groove is formed in a portion of the upper layer/interlayer insulation layer located in an edge region of the light emitting element, and an upper portion of the groove is closed with the insulation film.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: June 1, 2021
    Assignee: Sony Corporation
    Inventors: Takayoshi Kato, Naoya Kasahara, Shimpei Tsujikawa
  • Publication number: 20210091158
    Abstract: A display device of the present disclosure includes: an organic EL layer deposited on a circuit unit formed on a substrate via an insulating film; a cathode electrode deposited on the organic EL layer; a groove formed along a direction of arrangement of pixels between the pixels in the insulating film; and a contact electrode that is provided at a bottom of the groove and receives a predetermined potential. Moreover, the cathode electrode is electrically connected to the contact electrode in the groove.
    Type: Application
    Filed: July 3, 2018
    Publication date: March 25, 2021
    Inventor: Naoya Kasahara
  • Publication number: 20200357827
    Abstract: A display unit of the present disclosure includes a plurality of pixel circuits each including a light-emitting element, a drive transistor that has a drain and a source and supplies a current to the light-emitting element, and a control transistor connected to the drain or the source of the drive transistor. One channel portion is formed for two control transistors in respective adjacent two of the pixel circuits.
    Type: Application
    Filed: February 21, 2020
    Publication date: November 12, 2020
    Inventors: Naoya Kasahara, Michihiro Kanno
  • Patent number: 10593704
    Abstract: A display unit of the present disclosure includes a plurality of pixel circuits each including a light-emitting element, a drive transistor that has a drain and a source and supplies a current to the light-emitting element, and a control transistor connected to the drain or the source of the drive transistor. One channel portion is formed for two control transistors in respective adjacent two of the pixel circuits.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: March 17, 2020
    Assignee: Sony Corporation
    Inventors: Naoya Kasahara, Michihiro Kanno
  • Patent number: 10504923
    Abstract: A display unit of the present disclosure includes a plurality of pixel circuits each including a light-emitting element, a drive transistor that has a drain and a source and supplies a current to the light-emitting element, and a control transistor connected to the drain or the source of the drive transistor. One channel portion is formed for two control transistors in respective adjacent two of the pixel circuits.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: December 10, 2019
    Assignee: Sony Corporation
    Inventors: Naoya Kasahara, Michihiro Kanno