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).

  • Patent number: 10675851
    Abstract: According to one embodiment, a method of manufacturing a display device, includes preparing a first substrate in which a first display element part, a first extension part, a second display element part, and a second extension part, are formed, preparing a second substrate in which a first peeling auxiliary layer, a second peeling auxiliary layer, a sacrifice layer, a first color filter layer, and a second color filter layer, are formed, attaching the first substrate and the second substrate, and radiating a laser beam on the second substrate, and peeling a second support substrate from the first peeling auxiliary layer and the second peeling auxiliary layer while blocking the laser beam by the sacrifice layer.
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: June 9, 2020
    Assignee: Japan Display Inc.
    Inventors: Yasushi Kawata, Akio Murayama
  • Publication number: 20200176549
    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: February 12, 2020
    Publication date: June 4, 2020
    Applicant: Japan Display Inc.
    Inventor: Yasushi KAWATA
  • Patent number: 10658400
    Abstract: According to one embodiment, a display device includes an underlying insulation layer formed on a surface of a resin layer, and a thin-film transistor formed above the surface of the resin layer via the underlying insulation layer. The underlying insulation layer includes a three-layer multilayer structure of a first silicon oxide film, a silicon nitride film formed above the first silicon oxide film, and a second silicon oxide film formed above the silicon nitride film.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: May 19, 2020
    Assignee: Japan Display Inc.
    Inventors: Masato Hiramatsu, Yasushi Kawata, Arichika Ishida
  • Patent number: 10608073
    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: Grant
    Filed: July 8, 2019
    Date of Patent: March 31, 2020
    Assignee: Japan Display Inc.
    Inventor: Yasushi Kawata
  • Patent number: 10502985
    Abstract: According to one embodiment, a display device including a first substrate, a second substrate, a sealant, and a spacer, wherein the first substrate and the second substrate in an area surrounded by the sealant includes a first area and a second area located between the sealant and the first area, the spacer includes a plurality of first spacers located in the first area and a plurality of second spacers located in the second area, the first spacers are located at a first distance from each other in a first direction, the second spacers are located at a second distance from each other in the first direction, and the second distance is less than the first distance.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: December 10, 2019
    Assignee: Japan Display Inc.
    Inventor: Yasushi Kawata
  • Patent number: 10495803
    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: Grant
    Filed: September 14, 2017
    Date of Patent: December 3, 2019
    Assignee: Japan Display Inc.
    Inventors: Yoshiro Aoki, Yasushi Kawata, Arichika Ishida
  • Publication number: 20190361273
    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: August 7, 2019
    Publication date: November 28, 2019
    Applicant: Japan Display Inc.
    Inventors: Arichika ISHIDA, Yasushi KAWATA
  • Publication number: 20190333981
    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: July 8, 2019
    Publication date: October 31, 2019
    Inventor: Yasushi KAWATA
  • Patent number: 10459265
    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: Grant
    Filed: January 30, 2018
    Date of Patent: October 29, 2019
    Assignee: Japan Display Inc.
    Inventor: Yasushi Kawata
  • Patent number: 10416485
    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: Grant
    Filed: November 30, 2017
    Date of Patent: September 17, 2019
    Assignee: Japan Display Inc.
    Inventors: Arichika Ishida, Yasushi Kawata
  • Patent number: 10401560
    Abstract: An illumination device according to one embodiment includes a backlight and a display panel configured to selectively transmit light from the backlight. The backlight includes a light source, a main light guide portion formed in the shape of a flat plate and an approach portion. The main light guide portion includes a first surface facing the display panel, and a second surface opposite to the first surface. The approach portion includes a third surface facing the second surface, a fourth surface opposite to the third surface, a first end portion facing the light source, and a second end portion opposite to the first end portion, and connected to the main light guide portion, the fourth surface being inclined with respect to the third surface.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: September 3, 2019
    Assignee: Japan Display Inc.
    Inventor: Yasushi Kawata
  • Patent number: 10396141
    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: Grant
    Filed: April 4, 2017
    Date of Patent: August 27, 2019
    Assignee: Japan Display Inc.
    Inventor: Yasushi Kawata
  • Patent number: 10342133
    Abstract: According to one embodiment, a display device includes an insulating substrate that 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: Grant
    Filed: June 28, 2017
    Date of Patent: July 2, 2019
    Assignee: Japan Display Inc.
    Inventors: Yasushi Kawata, Takumi Sano
  • Patent number: 10268092
    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: Grant
    Filed: June 29, 2017
    Date of Patent: April 23, 2019
    Assignee: Japan Display Inc.
    Inventor: Yasushi Kawata
  • Patent number: 10211233
    Abstract: According to one embodiment, a display device includes a first substrate including a support substrate, a light shield, an insulating substrate disposed above the support substrate and the light shield and including a through hole, a pad electrode formed above the insulating substrate, and a signal line electrically connected to the pad electrode, and a first substrate including, in a plan view, a first area in which the support substrate and the light shield are disposed and a second area in which the through hole is disposed, a line substrate including a connection line and disposed below the insulating substrate, and a conductive material disposed inside the through hole to electrically connect the pad electrode and the connection line.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: February 19, 2019
    Assignee: Japan Display Inc.
    Inventors: Yasushi Kawata, Takumi Sano
  • Patent number: 10197847
    Abstract: According to one embodiment, a liquid crystal display device includes a first substrate, a second substrate including a color filter, and a liquid crystal layer. The first substrate includes a light-reflecting layer, a transparent conductive layer, an insulating layer, a first pixel electrode, and a second pixel electrode. The color filter includes a first color layer and a second color layer. A gap between the first pixel electrode and the second pixel electrode, the first color layer or the second color layer, the light-reflecting layer, the transparent conductive layer and the insulating layer are overlaid.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: February 5, 2019
    Assignee: Japan Display Inc.
    Inventors: Eri Sasaki, Yasushi Kawata
  • Publication number: 20190033628
    Abstract: According to one embodiment, a display device including a first substrate, a second substrate, a sealant, and a spacer, wherein the first substrate and the second substrate in an area surrounded by the sealant includes a first area and a second area located between the sealant and the first area, the spacer includes a plurality of first spacers located in the first area and a plurality of second spacers located in the second area, the first spacers are located at a first distance from each other in a first direction, the second spacers are located at a second distance from each other in the first direction, and the second distance is less than the first distance.
    Type: Application
    Filed: July 20, 2018
    Publication date: January 31, 2019
    Applicant: Japan Display Inc.
    Inventor: Yasushi KAWATA
  • Patent number: 10170530
    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: Grant
    Filed: March 3, 2017
    Date of Patent: January 1, 2019
    Assignee: Japan Display Inc.
    Inventors: Takumi Sano, Yasushi Kawata
  • Patent number: 10126581
    Abstract: According to one embodiment, a display device includes a first substrate including a first area, a second area adjacent to the first area, an insulating substrate disposed in the first area and the second area and including a first through hole formed in the second area, a pad electrode formed above the insulating substrate, and a signal line electrically connected to the pad electrode, a wiring substrate including a connection line, the wiring substrate disposed below the insulating substrate, and a conductive material disposed inside the first through hole to electrically connect the pad electrode and the connection line, wherein the insulating substrate becomes thinner in the second area than is in the first area.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: November 13, 2018
    Assignee: Japan Display Inc.
    Inventors: Takumi Sano, Yasushi Kawata
  • Patent number: 10126615
    Abstract: According to one embodiment, a display device includes a first substrate including an insulating substrate with a through hole, a first pad electrode disposed above the insulating substrate, and a signal line electrically connected to the first pad electrode, a second substrate disposed to be opposed to the first substrate, a first layer disposed between the first pad electrode and the second substrate, a wiring substrate including a connection line and disposed below the insulating substrate, and a conductive material disposed within the through hole to electrically connect the first pad electrode and the connection line, wherein the through hole is formed in a position overlapping the first layer.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: November 13, 2018
    Assignee: Japan Display Inc.
    Inventors: Yasushi Kawata, Takumi Sano