Patents by Inventor Muneharu Akiyoshi

Muneharu Akiyoshi 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: 10761364
    Abstract: A liquid crystal display device comprising: scanning lines extending in a first direction, video signal lines extending in a second direction, a pixel electrode formed in an area surrounded by the scanning lines and the video signal lines; a transistor connected to the pixel electrode, a first insulating film formed on a source electrode of the transistor, a common electrode formed on the first insulating film, a second insulating film on the common electrode, the pixel electrode is formed on the second insulating film; wherein a first through hole is formed in the first insulating film, the pixel electrode connects with the source electrode via the first through hole, a common metal wiring made of metal is formed overlapping with a part of the common electrode, black resin exists in the first through hole, the black resin is formed overlapping with the video signal line in a plan view.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: September 1, 2020
    Assignee: Japan Display Inc.
    Inventor: Muneharu Akiyoshi
  • Patent number: 10274777
    Abstract: According to one embodiment, a display device includes a first substrate, a second substrate opposed to the first substrate, and a display function layer, wherein the first substrate comprises an insulating substrate, a color filter layer includes a first color filter provided above the insulating substrate, and a second color filter provided above the insulating substrate and arranged in alignment with the first color filter, and a first inorganic insulating film which is in contact with a top surface of the first color filter, a first side surface of the first color filter opposed to the second color filter, and an under surface of the second color filter.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: April 30, 2019
    Assignee: Japan Display Inc.
    Inventor: Muneharu Akiyoshi
  • Publication number: 20190056620
    Abstract: A liquid crystal display device comprising: scanning lines extending in a first direction, video signal lines extending in a second direction, a pixel electrode formed in an area surrounded by the scanning lines and the video signal lines; a transistor connected to the pixel electrode, a first insulating film formed on a source electrode of the transistor, a common electrode formed on the first insulating film, a second insulating film on the common electrode, the pixel electrode is formed on the second insulating film; wherein a first through hole is formed in the first insulating film, the pixel electrode connects with the source electrode via the first through hole, a common metal wiring made of metal is formed overlapping with a part of the common electrode, black resin exists in the first through hole, the black resin is formed overlapping with the video signal line in a plan view.
    Type: Application
    Filed: August 13, 2018
    Publication date: February 21, 2019
    Applicant: Japan Display Inc.
    Inventor: Muneharu AKIYOSHI
  • Patent number: 10134780
    Abstract: According to one embodiment, a display device includes a first substrate including a first insulative substrate, an outer peripheral wiring formed above the first insulative substrate, an insulation film disposed on the outer peripheral wiring, a pixel electrode formed on the insulation film in an active area for displaying an image, and a first bank formed in a line shape on the insulation film in a peripheral area surrounding the active area, a second substrate including at least a second insulative substrate, and a sealant which is provided in a manner to envelop the first bank, and which attaches the first substrate and the second substrate.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: November 20, 2018
    Assignee: Japan Display Inc.
    Inventor: Muneharu Akiyoshi
  • Patent number: 10025146
    Abstract: According to one embodiment, a liquid crystal display device includes a first substrate, a second substrate, and a liquid crystal layer. The first substrate includes an organic insulating film, a first electrode formed on the organic insulating film, an inorganic insulating film formed on the first electrode, a second electrode formed on the inorganic insulating film, and an alignment film. The alignment film is in contact with the organic insulating film and the second electrode.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: July 17, 2018
    Assignee: Japan Display Inc.
    Inventor: Muneharu Akiyoshi
  • Publication number: 20180090522
    Abstract: According to one embodiment, a display device includes a first substrate including a first insulative substrate, an outer peripheral wiring formed above the first insulative substrate, an insulation film disposed on the outer peripheral wiring, a pixel electrode formed on the insulation film in an active area for displaying an image, and a first bank formed in a line shape on the insulation film in a peripheral area surrounding the active area, a second substrate including at least a second insulative substrate, and a sealant which is provided in a manner to envelop the first bank, and which attaches the first substrate and the second substrate.
    Type: Application
    Filed: October 3, 2017
    Publication date: March 29, 2018
    Applicant: JAPAN DISPLAY INC.
    Inventor: Muneharu AKIYOSHI
  • Publication number: 20180039130
    Abstract: According to one embodiment, a display device includes a first substrate, a second substrate opposed to the first substrate, and a display function layer, wherein the first substrate comprises an insulating substrate, a color filter layer includes a first color filter provided above the insulating substrate, and a second color filter provided above the insulating substrate and arranged in alignment with the first color filter, and a first inorganic insulating film which is in contact with a top surface of the first color filter, a first side surface of the first color filter opposed to the second color filter, and an under surface of the second color filter.
    Type: Application
    Filed: August 2, 2017
    Publication date: February 8, 2018
    Applicant: Japan Display Inc.
    Inventor: Muneharu AKIYOSHI
  • Patent number: 9806104
    Abstract: According to one embodiment, a display device includes a first substrate including a first insulative substrate, an outer peripheral wiring formed above the first insulative substrate, an insulation film disposed on the outer peripheral wiring, a pixel electrode formed on the insulation film in an active area for displaying an image, and a first bank formed in a line shape on the insulation film in a peripheral area surrounding the active area, a second substrate including at least a second insulative substrate, and a sealant which is provided in a manner to envelop the first bank, and which attaches the first substrate and the second substrate.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: October 31, 2017
    Assignee: Japan Display Inc.
    Inventor: Muneharu Akiyoshi
  • Patent number: 9696577
    Abstract: According to one embodiment, a reflective type liquid crystal display device provided can suppress light leakage into a thin film transistor due to entry of extraneous light. An array substrate includes a glass substrate, a plurality of thin film transistors, a plurality of pixel electrodes, and a metal film. The plurality of thin film transistors are provided to the glass substrate. The plurality of pixel electrodes are spaced apart from each other and driven by the thin film transistors. The plurality of pixel electrodes reflect extraneous light entering the reflective type display device from a counter substrate side. The metal film is provided between a gap between the pixel electrodes and each of the thin film transistors.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: July 4, 2017
    Assignee: Japan Display Inc.
    Inventors: Muneharu Akiyoshi, Kisako Ninomiya, Yasushi Kawata, Hirotaka Hayashi, Arichika Ishida
  • Publication number: 20170176823
    Abstract: According to one embodiment, a liquid crystal display device includes a first substrate, a second substrate, and a liquid crystal layer. The first substrate includes an organic insulating film, a first electrode formed on the organic insulating film, an inorganic insulating film formed on the first electrode, a second electrode formed on the inorganic insulating film, and an alignment film. The alignment film is in contact with the organic insulating film and the second electrode.
    Type: Application
    Filed: December 14, 2016
    Publication date: June 22, 2017
    Applicant: Japan Display Inc.
    Inventor: Muneharu AKIYOSHI
  • Publication number: 20170176792
    Abstract: According to one embodiment, a display device includes a color filter formed on an inorganic layer, an inorganic film formed above the color filter, and a semiconductor layer formed above the inorganic film. As seen in plan view, the inorganic film is provided over a first area in which the color filter is overlapped and a second area which surrounds the first area. In the second area, the inorganic film is located outward of the color filter.
    Type: Application
    Filed: December 14, 2016
    Publication date: June 22, 2017
    Applicant: Japan Display Inc.
    Inventors: Daisuke SONODA, Osamu ITOU, Muneharu AKIYOSHI
  • Patent number: 9523890
    Abstract: According to one embodiment, a liquid crystal panel includes substrates opposed to each other and paired. The liquid crystal panel includes a liquid crystal layer interposed between the substrates. The liquid crystal panel includes a sealed portion that includes bending corner portions at positions spaced from the outer edges of the substrates, and surrounds the periphery of the liquid crystal layer and bonds the substrates together. The liquid crystal panel includes main spacers that are interposed between the substrates at the position of the liquid crystal layer and hold the gap between the substrates. The liquid crystal panel includes auxiliary spacers that are interposed between the substrates to fill the portions between the outer side portions of the corner portions of the sealed portion and the outer edge sides of the substrates and hold the gap between the substrates.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: December 20, 2016
    Assignee: Japan Display Inc.
    Inventors: Yuki Matsuura, Muneharu Akiyoshi
  • Publication number: 20160131939
    Abstract: According to one embodiment, a reflective type liquid crystal display device provided can suppress light leakage into a thin film transistor due to entry of extraneous light. An array substrate includes a glass substrate, a plurality of thin film transistors, a plurality of pixel electrodes, and a metal film. The plurality of thin film transistors are provided to the glass substrate. The plurality of pixel electrodes are spaced apart from each other and driven by the thin film transistors. The plurality of pixel electrodes reflect extraneous light entering the reflective type display device from a counter substrate side. The metal film is provided between a gap between the pixel electrodes and each of the thin film transistors.
    Type: Application
    Filed: November 3, 2015
    Publication date: May 12, 2016
    Applicant: Japan Display Inc.
    Inventors: Muneharu AKIYOSHI, Kisako NINOMIYA, Yasushi KAWATA, Hirotaka HAYASHI, Arichika ISHIDA
  • Publication number: 20160013218
    Abstract: According to one embodiment, a display device includes a first substrate including a first insulative substrate, an outer peripheral wiring formed above the first insulative substrate, an insulation film disposed on the outer peripheral wiring, a pixel electrode formed on the insulation film in an active area for displaying an image, and a first bank formed in a line shape on the insulation film in a peripheral area surrounding the active area, a second substrate including at least a second insulative substrate, and a sealant which is provided in a manner to envelop the first bank, and which attaches the first substrate and the second substrate.
    Type: Application
    Filed: September 23, 2015
    Publication date: January 14, 2016
    Applicant: JAPAN DISPLAY INC.
    Inventor: Muneharu AKIYOSHI
  • Patent number: 9177977
    Abstract: According to one embodiment, a display device includes a first substrate including a first insulative substrate, an outer peripheral wiring formed above the first insulative substrate, an insulation film disposed on the outer peripheral wiring, a pixel electrode formed on the insulation film in an active area for displaying an image, and a first bank formed in a line shape on the insulation film in a peripheral area surrounding the active area, a second substrate including at least a second insulative substrate, and a sealant which is provided in a manner to envelop the first bank, and which attaches the first substrate and the second substrate.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: November 3, 2015
    Assignee: Japan Display Inc.
    Inventor: Muneharu Akiyoshi
  • Patent number: 9123588
    Abstract: According to one embodiment, a method of manufacturing a thin-film transistor circuit substrate including forming an oxide semiconductor thin film above an insulative substrate, forming a gate insulation film and a gate electrode which are stacked on a first region of the oxide semiconductor thin film, and exposing from the gate insulation film a second region and a third region of the oxide semiconductor thin film, the second region and the third region being located on both sides of the first region of the oxide semiconductor thin film, forming an interlayer insulation film of silicon nitride including dangling bonds of silicon, the interlayer insulation film covering the second region and the third region of the oxide semiconductor thin film, the gate insulation film and the gate electrode, and forming a source electrode and a drain electrode.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: September 1, 2015
    Assignee: JAPAN DISPLAY INC.
    Inventors: Tetsuya Shibata, Hajime Watakabe, Atsushi Sasaki, Yuki Matsuura, Muneharu Akiyoshi, Hiroyuki Watanabe
  • Publication number: 20150036093
    Abstract: According to one embodiment, a liquid crystal panel includes substrates opposed to each other and paired. The liquid crystal panel includes a liquid crystal layer interposed between the substrates. The liquid crystal panel includes a sealed portion that includes bending corner portions at positions spaced from the outer edges of the substrates, and surrounds the periphery of the liquid crystal layer and bonds the substrates together. The liquid crystal panel includes main spacers that are interposed between the substrates at the position of the liquid crystal layer and hold the gap between the substrates. The liquid crystal panel includes auxiliary spacers that are interposed between the substrates to fill the portions between the outer side portions of the corner portions of the sealed portion and the outer edge sides of the substrates and hold the gap between the substrates.
    Type: Application
    Filed: July 9, 2014
    Publication date: February 5, 2015
    Applicant: Japan Display Inc.
    Inventors: Yuki MATSUURA, Muneharu AKIYOSHI
  • Publication number: 20150022772
    Abstract: According to one embodiment, a liquid crystal panel and its manufacturing method are provided that can ensure a bonding strength between substrates that a sealed portion provides, while achieving a narrowed frame. The liquid crystal panel includes a pair of corrective structures provided in a manner protruding from an array substrate toward a counter substrate. The liquid crystal panel further includes a counter structure disposed in at least a portion of the frame area and provided in a manner protruding from the counter substrate toward the array substrate, the leading end of the structure coming closer to the surface of the array substrate than the leading ends of the corrective structures and positioned between the corrective structures. A sealed portion arranged to bond the substrates to each other is formed through curing of a fluidic sealing material and provided between the corrective structures and the counter structure.
    Type: Application
    Filed: July 9, 2014
    Publication date: January 22, 2015
    Applicant: Japan Display Inc.
    Inventor: Muneharu AKIYOSHI
  • Publication number: 20140191231
    Abstract: According to one embodiment, a method of manufacturing a thin-film transistor circuit substrate including forming an oxide semiconductor thin film above an insulative substrate, forming a gate insulation film and a gate electrode which are stacked on a first region of the oxide semiconductor thin film, and exposing from the gate insulation film a second region and a third region of the oxide semiconductor thin film, the second region and the third region being located on both sides of the first region of the oxide semiconductor thin film, forming an interlayer insulation film of silicon nitride including dangling bonds of silicon, the interlayer insulation film covering the second region and the third region of the oxide semiconductor thin film, the gate insulation film and the gate electrode, and forming a source electrode and a drain electrode.
    Type: Application
    Filed: March 12, 2014
    Publication date: July 10, 2014
    Applicant: JAPAN DISPLAY INC.
    Inventors: Tetsuya SHIBATA, Hajime Watakabe, Atsushi Sasaki, Yuki Matsuura, Muneharu Akiyoshi, Hiroyuki Watanabe
  • Publication number: 20140167053
    Abstract: According to one embodiment, a display device includes a first substrate including a first insulative substrate, an outer peripheral wiring formed above the first insulative substrate, an insulation film disposed on the outer peripheral wiring, a pixel electrode formed on the insulation film in an active area for displaying an image, and a first bank formed in a line shape on the insulation film in a peripheral area surrounding the active area, a second substrate including at least a second insulative substrate, and a sealant which is provided in a manner to envelop the first bank, and which attaches the first substrate and the second substrate.
    Type: Application
    Filed: December 5, 2013
    Publication date: June 19, 2014
    Applicant: Japan Display Inc.
    Inventor: Muneharu AKIYOSHI