Patents by Inventor Toshiyuki Higano

Toshiyuki Higano 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: 11976970
    Abstract: An optical sensor includes at least one interferometer having a pair of semi-transparent mirrors spaced apart and oppositely arranged, and at least one position of the pair of semi-transparent mirrors can be displaced, at least one collimating element overlapping the at least one interferometer, and at least one photoelectric conversion element having sensitivity in the visible and near infrared light bands and receiving light passing through the interferometer and the collimating element.
    Type: Grant
    Filed: March 24, 2022
    Date of Patent: May 7, 2024
    Assignee: Japan Display Inc.
    Inventors: Toshiyuki Higano, Yasushi Tomioka, Kazuhiro Nishiyama
  • Patent number: 11966112
    Abstract: According to an aspect, a detection apparatus includes: an optical sensor including a sensor base member and a plurality of photoelectric conversion elements that are provided on the sensor base member and each of which is configured to output a signal corresponding to light emitted to the photoelectric conversion element; and a lighting device including a plurality of first light-emitting elements configured to emit first light having a first maximum emission wavelength and a plurality of second light-emitting elements configured to emit second light having a second maximum emission wavelength. Each of the photoelectric conversion elements has responsivity in a wavelength region including a wavelength region of the first light and a wavelength region of the second light.
    Type: Grant
    Filed: November 2, 2021
    Date of Patent: April 23, 2024
    Assignee: Japan Display Inc.
    Inventors: Toshiyuki Higano, Kazuhiro Nishiyama, Genki Asozu, Kazuki Matsunaga
  • Publication number: 20230186674
    Abstract: According to an aspect, a detection device includes: a plurality of light-receiving elements configured to receive light; and a light guide portion one surface of which faces the light-receiving elements. The light guide portion includes a plurality of light guide paths provided throughout from the one surface to the other surface of the light guide portion, and a light-absorbing portion having higher absorbance of the light than that of the light guide paths. When viewed from a direction in which the light-receiving elements and the light guide portion are stacked, more than one of the light guide paths overlap one of the light-receiving elements.
    Type: Application
    Filed: January 27, 2023
    Publication date: June 15, 2023
    Inventors: Yasushi TOMIOKA, Kazuki MATSUNAGA, Toshiyuki HIGANO, Kazuhiro NISHIYAMA
  • Patent number: 11656505
    Abstract: According to one embodiment, a display device includes a first substrate including a first transparent substrate and a pixel electrode, a second substrate including a second transparent substrate and a common electrode opposed to the pixel electrode, a liquid crystal layer located between the first substrate and the second substrate and containing a polymer and liquid crystal molecules, a sealant bonding the first substrate and the second substrate and sealing in the liquid crystal layer, and a light-emitting element. The second transparent substrate comprises a side surface opposed to the light-emitting element. A color of the sealant is black, yellow or red.
    Type: Grant
    Filed: June 3, 2022
    Date of Patent: May 23, 2023
    Assignee: Japan Display Inc.
    Inventors: Midori Tsukane, Toshiyuki Higano
  • Patent number: 11600102
    Abstract: According to an aspect, a detection device includes a plurality of light-receiving elements configured to receive light, and a light guide portion one surface of which faces the light-receiving elements. The light guide portion includes a plurality of light guide paths provided throughout from the one surface to the other surface of the light guide portion, and a light-absorbing portion having higher absorbance of the light than that of the light guide paths. When viewed from a direction in which the light-receiving elements and the light guide portion are stacked, more than one of the light guide paths overlap one of the light-receiving elements.
    Type: Grant
    Filed: November 2, 2021
    Date of Patent: March 7, 2023
    Assignee: Japan Display Inc.
    Inventors: Yasushi Tomioka, Kazuki Matsunaga, Toshiyuki Higano, Kazuhiro Nishiyama
  • Publication number: 20220291536
    Abstract: According to one embodiment, a display device includes a first substrate including a first transparent substrate and a pixel electrode, a second substrate including a second transparent substrate and a common electrode opposed to the pixel electrode, a liquid crystal layer located between the first substrate and the second substrate and containing a polymer and liquid crystal molecules, a sealant bonding the first substrate and the second substrate and sealing in the liquid crystal layer, and a light-emitting element. The second transparent substrate comprises a side surface opposed to the light-emitting element. A color of the sealant is black, yellow or red.
    Type: Application
    Filed: June 3, 2022
    Publication date: September 15, 2022
    Applicant: Japan Display Inc.
    Inventors: Midori TSUKANE, Toshiyuki HIGANO
  • Patent number: 11391996
    Abstract: According to one embodiment, a display device includes a first substrate including a first transparent substrate and a pixel electrode, a second substrate including a second transparent substrate and a common electrode opposed to the pixel electrode, a liquid crystal layer located between the first substrate and the second substrate and containing a polymer and liquid crystal molecules, a sealant bonding the first substrate and the second substrate and sealing in the liquid crystal layer, and a light-emitting element. The second transparent substrate comprises a side surface opposed to the light-emitting element. A color of the sealant is black, yellow or red.
    Type: Grant
    Filed: May 6, 2021
    Date of Patent: July 19, 2022
    Assignee: Japan Display Inc.
    Inventors: Midori Tsukane, Toshiyuki Higano
  • Publication number: 20220214215
    Abstract: An optical sensor includes at least one interferometer having a pair of semi-transparent mirrors spaced apart and oppositely arranged, and at least one position of the pair of semi-transparent mirrors can be displaced, at least one collimating element overlapping the at least one interferometer, and at least one photoelectric conversion element having sensitivity in the visible and near infrared light bands and receiving light passing through the interferometer and the collimating element.
    Type: Application
    Filed: March 24, 2022
    Publication date: July 7, 2022
    Applicant: Japan Display Inc.
    Inventors: Toshiyuki HIGANO, Yasushi TOMIOKA, Kazuhiro NISHIYAMA
  • Publication number: 20220128857
    Abstract: The purpose of the present invention is to reduce moiré with suppressing a decrease in screen luminance in the liquid crystal display device. A representative structure is as follows. A liquid crystal display device including: a first liquid crystal display panel having a first pixel; a second liquid crystal display panel having a second pixel; a back light; and a diffusion layer disposed between the first liquid crystal display panel and the second liquid crystal display panel, in which the second liquid crystal display panel is nearer to the backlight than the first liquid crystal display panel is; a resin light shading film is formed to surround the first pixel in a plan view in the first liquid crystal display panel, and a metal light shading film is formed to surround the second pixel in a plan view in the second liquid crystal display panel.
    Type: Application
    Filed: January 4, 2022
    Publication date: April 28, 2022
    Applicant: Japan Display Inc.
    Inventors: Yosuke HYODO, Toshiyuki HIGANO
  • Publication number: 20220057664
    Abstract: According to an aspect, a detection apparatus includes: an optical sensor including a sensor base member and a plurality of photoelectric conversion elements that are provided on the sensor base member and each of which is configured to output a signal corresponding to light emitted to the photoelectric conversion element; and a lighting device including a plurality of first light-emitting elements configured to emit first light having a first maximum emission wavelength and a plurality of second light-emitting elements configured to emit second light having a second maximum emission wavelength. Each of the photoelectric conversion elements has responsivity in a wavelength region including a wavelength region of the first light and a wavelength region of the second light.
    Type: Application
    Filed: November 2, 2021
    Publication date: February 24, 2022
    Applicant: Japan Display Inc.
    Inventors: Toshiyuki HIGANO, Kazuhiro NISHIYAMA, Genki ASOZU, Kazuki MATSUNAGA
  • Publication number: 20220058365
    Abstract: According to an aspect, a detection device includes a plurality of light-receiving elements configured to receive light, and a light guide portion one surface of which faces the light-receiving elements. The light guide portion includes a plurality of light guide paths provided throughout from the one surface to the other surface of the light guide portion, and a light-absorbing portion having higher absorbance of the light than that of the light guide paths. When viewed from a direction in which the light-receiving elements and the light guide portion are stacked, more than one of the light guide paths overlap one of the light-receiving elements.
    Type: Application
    Filed: November 2, 2021
    Publication date: February 24, 2022
    Inventors: Yasushi TOMIOKA, Kazuki MATSUNAGA, Toshiyuki HIGANO, Kazuhiro NISHIYAMA
  • Publication number: 20220039697
    Abstract: A detection device includes: an optical sensor including a sensor base member and photoelectric conversion elements that are provided on the sensor base member and configured to output signals corresponding to light emitted to the photoelectric conversion elements; a light-emitting element configured to emit output light toward a direction of an object to be measured; and an optical element including first light-transmitting areas and a non-light-transmitting area and provided between the optical sensor and the object to be measured.
    Type: Application
    Filed: October 27, 2021
    Publication date: February 10, 2022
    Applicant: Japan Display Inc.
    Inventors: Toshiyuki HIGANO, Kazuhiro NISHIYAMA, Yasushi TOMIOKA, Genki ASOZU, Kazuki MATSUNAGA
  • Publication number: 20220035189
    Abstract: According to one embodiment, a display device includes a plurality of first prisms, a plurality of second prisms and a display panel provided between the first prisms and the second prisms, and the display panel includes a first substrate including a first transparent substrate and a pixel electrode, a second substrate including a second transparent substrate and a common electrode opposing the pixel electrode, and a liquid crystal layer provided between the first substrate and the second substrate and containing a polymer and liquid crystal molecules.
    Type: Application
    Filed: October 14, 2021
    Publication date: February 3, 2022
    Inventors: Genki ASOZU, Toshiyuki HIGANO, Hirohisa MIKI
  • Patent number: 11137635
    Abstract: According to one embodiment, a display device includes a display panel including a display area which displays images, a non-display area surrounding the display area, and a bend area in the non-display area, a first optical film located on the display panel and comprising an end portion which overlaps the bend area, an adhesive layer which adheres the first optical film and the display panel together and a non-adhesive layer located between the first optical film and the display panel, while overlapping the bend area, wherein the non-adhesive layer is in contact with an upper surface of the display panel.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: October 5, 2021
    Assignee: Japan Display Inc.
    Inventors: Emi Higano, Toshiyuki Higano, Shigesumi Araki
  • Patent number: 11119351
    Abstract: The display device includes: a first substrate; a second substrate; and a liquid crystal layer placed between the first substrate and the second substrate. The first substrate and the second substrate have a display area and a frame area around the display area. The frame area has a seal material placed between the first substrate and the second substrate. The second substrate has: a second resin substrate; in the display area, a first multilayer layer placed on a side of the second resin substrate facing the liquid crystal layer, the first multilayer layer including a first inorganic insulating film, a light shielding member, and an overcoat film; and in the frame area, a second multilayer layer placed on the side of the second resin substrate facing the liquid crystal layer, the second multilayer layer including the light shielding member and the overcoat film.
    Type: Grant
    Filed: January 14, 2021
    Date of Patent: September 14, 2021
    Assignee: Japan Display Inc.
    Inventors: Yosuke Hyodo, Toshiyuki Higano, Yoshiro Aoki, Shinichiro Oka
  • Publication number: 20210255493
    Abstract: According to one embodiment, a display device includes a first substrate including a first transparent substrate and a pixel electrode, a second substrate including a second transparent substrate and a common electrode opposed to the pixel electrode, a liquid crystal layer located between the first substrate and the second substrate and containing a polymer and liquid crystal molecules, a sealant bonding the first substrate and the second substrate and sealing in the liquid crystal layer, and a light-emitting element. The second transparent substrate comprises a side surface opposed to the light-emitting element. A color of the sealant is black, yellow or red.
    Type: Application
    Filed: May 6, 2021
    Publication date: August 19, 2021
    Applicant: Japan Display Inc.
    Inventors: Midori TSUKANE, Toshiyuki HIGANO
  • Publication number: 20210240029
    Abstract: An electronic apparatus comprising: a first flexible substrate; a second flexible substrate facing the first flexible substrate; and a first barrier film provided on a surface of the first flexible substrate that faces the second flexible substrate and formed by an inorganic insulating film, wherein the first flexible substrate has a superimposition region in which the first barrier film is provided and a non-superimposition region that is provided between a side surface of the first barrier film and a side surface of the first flexible substrate and in which the first barrier film is not provided.
    Type: Application
    Filed: February 3, 2021
    Publication date: August 5, 2021
    Inventors: Genki ASOZU, Toshiyuki HIGANO
  • Publication number: 20210208444
    Abstract: An electrooptic apparatus includes: a flexible first substrate having a first front surface; a liquid crystal layer (electrooptic layer) formed above the first front surface of the first substrate; a transistor element between the first substrate and the liquid crystal layer; a first wiring being closer to the first front surface and electrically connected to the transistor element; a first organic film between the first substrate and the first wiring; and a first inorganic insulating film between the transistor element and the first substrate and on the first front surface of the first substrate. The first substrate further includes: a first portion overlapping a display region and the insulating film; and a second portion not overlapping the insulating film 11 and including a bending region. The first wiring overlaps the first and second portions, and a thickness of the second portion is smaller than a thickness of the first portion.
    Type: Application
    Filed: March 22, 2021
    Publication date: July 8, 2021
    Applicant: Japan Display Inc.
    Inventors: Shinichiro OKA, Yosuke HYODO, Toshiyuki HIGANO, Emi HIGANO
  • Patent number: 11029550
    Abstract: According to one embodiment, an electro-optical device comprises a flexible first substrate and a flexible second substrate which include an electro-optical area, a drive area in the first substrate with terminals formed in the drive area, an external drive circuit connected to the terminals, conductive lines extending from the terminals to the electro-optical area side, and a first resin film overlapping the conductive lines. Further, a gap is formed between the first resin film and the second substrate in planar view.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: June 8, 2021
    Assignee: Japan Display Inc.
    Inventors: Genki Asozu, Toshiyuki Higano, Emi Higano
  • Publication number: 20210132434
    Abstract: The display device includes: a first substrate; a second substrate; and a liquid crystal layer placed between the first substrate and the second substrate. The first substrate and the second substrate have a display area and a frame area around the display area. The frame area has a seal material placed between the first substrate and the second substrate. The second substrate has: a second resin substrate; in the display area, a first multilayer layer placed on a side of the second resin substrate facing the liquid crystal layer, the first multilayer layer including a first inorganic insulating film, a light shielding member, and an overcoat film; and in the frame area, a second multilayer layer placed on the side of the second resin substrate facing the liquid crystal layer, the second multilayer layer including the light shielding member and the overcoat film.
    Type: Application
    Filed: January 14, 2021
    Publication date: May 6, 2021
    Applicant: Japan Display Inc.
    Inventors: Yosuke HYODO, Toshiyuki HIGANO, Yoshiro AOKI, Shinichiro OKA