Patents by Inventor Yasushi Kawata

Yasushi Kawata 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: 20180248140
    Abstract: According to one embodiment, a display device includes an insulating substrate including a first main surface, a first supporting substrate adhered to the first main surface of the insulating substrate, and a second supporting substrate spaced from the first supporting substrate and adhered to the first main surface of the insulating substrate, and the first supporting substrate includes a first side surface opposing the second supporting substrate, the second supporting substrate includes a second side surface opposing the first supporting substrate, the first supporting substrate is formed into a tapered shape which narrows toward the first side surface, and the second supporting substrate is formed into a tapered shape which narrows toward the second side surface.
    Type: Application
    Filed: February 22, 2018
    Publication date: August 30, 2018
    Applicant: Japan Display Inc.
    Inventors: Takumi SANO, Yasushi KAWATA
  • Publication number: 20180217434
    Abstract: According to one embodiment, a display device includes a first substrate including a first insulating substrate, a second substrate including a second insulating substrate and opposing the first substrate, and an adhesive layer which attaches the first substrate and the second substrate together. The adhesive layer includes a first portion extending in a first direction. The first portion includes a first end portion and a second end portion, each extending in the first direction. The second substrate includes a third end portion located between the first end portion and the second end portion and extending in the first direction. The first substrate and the second substrate are bent in a position overlapping the first portion.
    Type: Application
    Filed: January 30, 2018
    Publication date: August 2, 2018
    Applicant: Japan Display Inc.
    Inventor: Yasushi Kawata
  • Patent number: 10032421
    Abstract: According to one embodiment, a liquid display device includes a liquid crystal display panel provided with pixel which includes pixel electrode, and has gradation values that vary, a driver which drives the pixel electrode, and a processor which supplies, if the gradation value of the pixel varies, the driver with a correction image signal based on an addition image signal in which a voltage based on the gradation value and a compensation voltage are added. The compensation voltage is based on pixel capacitances prior to and subsequent to variation of the gradation value and a voltage subsequent to the variation of the gradation value.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: July 24, 2018
    Assignee: Japan Display Inc.
    Inventors: Hajime Yamaguchi, Yasushi Kawata, Akio Murayama
  • Patent number: 10031365
    Abstract: According to one embodiment, a liquid crystal display device includes a first substrate unit including pixel electrodes arranged in a matrix configuration, a second substrate unit including counter electrodes, and a liquid crystal layer. The pixel electrodes include a first and a second pixel electrode arranged to be adjacent along one of the row direction or the column direction. An inter-pixel region is provided between the first and the second pixel electrodes. The counter electrodes include a first and a second opposing portion arranged to be adjacent along the other of the row direction or the column direction. An inter-counter electrode region is provided between the first and the second opposing portions. The inter-counter electrode region overlaps the inter-pixel region. A light-shielding layer is provided in the second substrate unit, and covers the inter-counter electrode region and the inter-pixel region.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: July 24, 2018
    Assignee: Japan Display Inc.
    Inventors: Masaya Tamaki, Hayato Kurasawa, Yasushi Kawata
  • Publication number: 20180183002
    Abstract: According to one embodiment, a display device includes an an insulating substrate, and a supporting substrate, a protective member. The insulating substrate includes a first upper surface and a first lower surface. The supporting substrate includes a second upper surface and a second lower surface. The second upper surface is attached to the first lower surface. The protective member is attached to the first upper surface. The second upper surface is smaller than the first upper surface. The first upper surface is smaller than the protective member.
    Type: Application
    Filed: November 21, 2017
    Publication date: June 28, 2018
    Applicant: Japan Display Inc.
    Inventor: Yasushi KAWATA
  • Patent number: 9991469
    Abstract: According to one embodiment, a display device includes an insulating substrate including a first area and a second area adjacent to the first area, the insulating substrate including a first through hole formed in the second area which is formed thinner than the first area, a pad electrode disposed above the first through hole, a signal line electrically connected to the pad electrode, a line substrate including a connection line and disposed below the insulating substrate, a conductive material disposed inside the first through hole to electrically connect the pad electrode and the connection line, a first protection member disposed below the first area, and a second protection member disposed below the first protection member.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: June 5, 2018
    Assignee: Japan Display Inc.
    Inventors: Takumi Sano, Yasushi Kawata
  • Publication number: 20180151761
    Abstract: According to one embodiment, a display device includes a metal line, a first reflection suppressing layer, a second reflection suppressing layer. The first reflection suppressing layer is formed on the metal line. The second reflection suppressing layer is formed on the first reflection suppressing layer. The first reflection suppressing layer is formed of indium tin oxide or reduced indium tin oxide.
    Type: Application
    Filed: November 15, 2017
    Publication date: May 31, 2018
    Applicant: Japan Display Inc.
    Inventor: Yasushi KAWATA
  • Publication number: 20180081211
    Abstract: According to one embodiment, a display device includes a first substrate including a first resin substrate having a first thermal expansion coefficient, and a first barrier layer having a second thermal expansion coefficient which is lower than the first thermal expansion coefficient, a second substrate including a second resin substrate having a third thermal expansion coefficient which is equal to the first thermal expansion coefficient, and a second barrier layer having a fourth thermal expansion coefficient which is lower than the third thermal expansion coefficient and is equal to the first thermal expansion coefficient, and a display element located between the first resin substrate and the second resin substrate.
    Type: Application
    Filed: November 30, 2017
    Publication date: March 22, 2018
    Applicant: Japan Display Inc.
    Inventors: Arichika ISHIDA, Yasushi KAWATA
  • Publication number: 20180019418
    Abstract: According to one embodiment, a display device includes an insulating substrate on which a display function layer is provided, and a protection member attached onto the insulating substrate, and the insulating substrate further includes a first surface on which the display function layer is formed and a second surface on an opposite side to the first surface, on which the protection member is attached, and at least one of the first surface and the second surface includes a projection and a recess.
    Type: Application
    Filed: July 10, 2017
    Publication date: January 18, 2018
    Applicant: Japan Display Inc.
    Inventors: Daisuke SONODA, Tatsuya IDE, Rintaro MAKINO, Yasushi KAWATA, Takumi SANO
  • Publication number: 20180007789
    Abstract: According to one embodiment, a display device includes an insulating substrate includes a first area, a second area adjacent to the first area, and a third area adjacent to the second area, a wiring substrate mounted at a position overlapping the third area on a surface side of the insulating substrate, and a supporting substrate attached to the insulating substrate on the other surface side of the insulating substrate, which is opposite to the surface side, wherein the second area is located between the first area and the third area, and the supporting substrate is provided so as not to overlap the second area.
    Type: Application
    Filed: June 28, 2017
    Publication date: January 4, 2018
    Applicant: Japan Display Inc.
    Inventors: Yasushi KAWATA, Takumi SANO
  • Publication number: 20180003880
    Abstract: According to one embodiment, provided is a liquid crystal display device with a reduced size and little restriction for incorporation into other devices. The liquid crystal display device includes an array substrate that includes multiple thin film transistors for pixel driving, a scanning line and a signal line. The liquid crystal display device also includes a counter substrate disposed on the display side in a manner opposed to the array substrate. The liquid crystal display device further includes an FPC arranged to transmit an external signal for driving of the thin film transistors. One end portion of the FPC is connected to the scanning line and the signal line, while the other end portion is extended inward. The scanning line, the signal line and the FPC are disposed within an outline of the counter substrate.
    Type: Application
    Filed: September 14, 2017
    Publication date: January 4, 2018
    Applicant: Japan Display Inc.
    Inventors: Yoshiro AOKI, Yasushi KAWATA, Arichika ISHIDA
  • Publication number: 20180004053
    Abstract: According to one embodiment, a display device includes a display panel including a first area and a second area adjacent to the first area, and a wiring substrate mounted on the second area of the display panel, wherein the first area includes an insulating substrate, an inorganic insulating film disposed on the insulating substrate, and a signal line disposed on the inorganic insulating film, and the second area includes a protective layer and the signal line disposed continuously from the first area on the protective layer.
    Type: Application
    Filed: June 29, 2017
    Publication date: January 4, 2018
    Applicant: Japan Display Inc.
    Inventor: Yasushi KAWATA
  • Patent number: 9854668
    Abstract: According to one embodiment, a display device includes a first flexible substrate including an insulating substrate with a first area, a second area adjacent to the first area, and a through hole, and a pad electrode, a second flexible substrate including a connection line, the second flexible substrate disposed below the first flexible substrate, and an anisotropy conductive film which electrically connects the pad electrode and the connection line, wherein the anisotropy conductive film is disposed between the second area and the second flexible substrate, and has a first film thickness in a first position and a second film thickness in a second position, where the first film thickness is greater than the second film thickness.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: December 26, 2017
    Assignee: Japan Display Inc.
    Inventors: Takumi Sano, Yasushi Kawata
  • Patent number: 9817273
    Abstract: According to one embodiment, a liquid crystal display device includes a liquid crystal layer, a first substrate and a second substrate. The first substrate includes a light reflection type of first pixel electrode and a first alignment film. The second substrate includes a counter-electrode and a second alignment film. A first alignment treatment direction is inclined in a second direction of rotation at an angle of 110° to 130° with respect to in a second alignment treatment direction. A liquid crystal material is used which contains an optically active substance which gives liquid crystal molecules a twisting force from the second alignment film toward the first alignment film in the second direction of rotation.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: November 14, 2017
    Assignee: Japan Display Inc.
    Inventor: Yasushi Kawata
  • Patent number: 9804315
    Abstract: According to one embodiment, provided is a liquid crystal display device with a reduced size and little restriction for incorporation into other devices. The liquid crystal display device includes an array substrate that includes multiple thin film transistors for pixel driving. The liquid crystal display device also includes a counter substrate disposed in a manner opposed to the array substrate. The liquid crystal display device further includes an FPC arranged to transmit an external signal for driving of the thin film transistors. One of the array substrate and the counter substrate has an outline larger than that of the other, disposed on the display side, and includes a connecting portion at a position not opposed to the other on the side opposite to the display side. At least one end portion of the FPC is connected to the connecting portion, while the other end portion extends inward.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: October 31, 2017
    Assignee: Japan Display Inc.
    Inventors: Yoshiro Aoki, Yasushi Kawata, Arichika Ishida
  • Publication number: 20170294621
    Abstract: A display device has both an array layer and a terminal part formed on a bendable substrate. An optical sheet is disposed to cover the array layer, and an overcoat is formed to cover the terminal part. The side surface of the optical sheet is inclined at an inclination angle with respect to the main surface of the substrate. The overcoat is in contact with the side surface of the optical sheet.
    Type: Application
    Filed: March 27, 2017
    Publication date: October 12, 2017
    Inventors: Toshiyuki HIGANO, Yasushi KAWATA
  • Patent number: 9786686
    Abstract: According to one embodiment, a display device includes a first substrate includes an insulating substrate including a pierced portion, a pad electrode formed on the insulating substrate, and a signal line electrically connected to the pad electrode, a wiring board includes an interconnecting wiring and located under the insulating substrate, and a conductive material provided in the pierced portion and electrically connecting the pad electrode and the interconnecting wiring to each other.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: October 10, 2017
    Assignee: Japan Display Inc.
    Inventor: Yasushi Kawata
  • Publication number: 20170288005
    Abstract: According to one embodiment, a display device comprises a flexible substrate, a first insulating film disposed on the flexible substrate, a switching element disposed on the first insulating film, a signal wiring electrically connected with the switching element, a first organic film disposed on the signal wiring, a connection wiring disposed on the first organic film, a second organic film disposed on the connection wiring and a pad electrode disposed on the second organic film. The connection wiring is located between the first organic film and the second organic film and is in contact with the first organic film and the second organic film.
    Type: Application
    Filed: April 4, 2017
    Publication date: October 5, 2017
    Applicant: Japan Display Inc.
    Inventor: Yasushi KAWATA
  • Publication number: 20170256600
    Abstract: According to one embodiment, a display device includes a first substrate including as insulating substrate with a first through hole, a pad electrode positioned above the insulating substrate, and a signal line electrically connected to the pad electrode, a second substrate opposed to the first substrate, a sealant which adheres the first substrate and the second substrate, a line substrate including a connection line and disposed below the insulating substrate, and a conductive material which electrically connects the pad electrode and the connection line, wherein the sealant is less absorptive than is the insulating substrate as to a wavelength less than 350 nm.
    Type: Application
    Filed: March 3, 2017
    Publication date: September 7, 2017
    Applicant: Japan Display Inc.
    Inventors: Takumi SANO, Yasushi KAWATA
  • Publication number: 20170257939
    Abstract: According to one embodiment, a display device includes a first flexible substrate including an insulating substrate with a first area, a second area adjacent to the first area, and a through hole, and a pad electrode, a second flexible substrate including a connection line, the second flexible substrate disposed below the first flexible substrate, and an anisotropy conductive film which electrically connects the pad electrode and the connection line, wherein the anisotropy conductive film is disposed between the second area and the second flexible substrate, and has a first film thickness in a first position and a second film thickness in a second position, where the first film thickness is greater than the second film thickness.
    Type: Application
    Filed: March 7, 2017
    Publication date: September 7, 2017
    Applicant: Japn Display Inc.
    Inventors: Takumi SANO, Yasushi KAWATA