Patents by Inventor Jin Hirosawa

Jin Hirosawa 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: 10503002
    Abstract: According to one embodiment, a display device includes a first substrate including a first insulating substrate located in a first area and a second area, and a first conductive layer provided in the second area, a second substrate including a second insulating substrate located in the first area, and a second conductive layer, and a first connection line opposed to a first side surface of the second insulating substrate to electrically connect the first conductive layer and the second conductive layer. The first connection line is formed of a photosensitive resin containing a conductive material.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: December 10, 2019
    Assignee: Japan Display Inc.
    Inventors: Arihiro Takeda, Shoji Hinata, Yoshikatsu Imazeki, Nobuko Fukuoka, Jin Hirosawa
  • Patent number: 10401673
    Abstract: According to one embodiment, a liquid crystal display device includes a first substrate includes a first pixel electrode which comprises a first contact portion and a first strip electrode with a first length, a second pixel electrode which comprises a second contact portion located on a same straight line with the first contact portion and a second strip electrode with a second length equal to the first length, and a third pixel electrode which comprises a third contact portion disposed at a position displaced from the same straight line of the first contact portion and a third strip electrode with a third length different from the first length, a second substrate, and a liquid crystal layer held between the first substrate and the second substrate.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: September 3, 2019
    Assignee: JAPAN DISPLAY INC.
    Inventor: Jin Hirosawa
  • Publication number: 20190265825
    Abstract: According to an aspect, a display device with a sensor includes: a first substrate; detection electrodes arrayed in a matrix in a first direction and a second direction intersecting the first direction above the first substrate; sensor wires coupled to one of the detection electrodes; pixels each including sub-pixels and arrayed in a matrix in the first and second directions; scanning lines scanning switching elements of the sub-pixels and extending in the first direction; and signal lines coupled to the switching elements and extending in the second direction. One of the sensor wires overlaps one of the signal lines. The sensor wires each have, at a part thereof, a coupling part coupled to the corresponding detection electrode. The pixels include a first pixel with the coupling part and a second pixel without the coupling part. The first and second pixels are alternately disposed in the first and second directions.
    Type: Application
    Filed: February 25, 2019
    Publication date: August 29, 2019
    Applicant: Japan Display Inc.
    Inventors: Yoshinori Aoki, Yuji Maede, Jin Hirosawa, Yuzo Kanari
  • Patent number: 10353259
    Abstract: According to one embodiment, a liquid crystal display device includes a first substrate including a semiconductor layer including a first extension portion and a second extension portion, a gate line, a first common electrode opposed to at least the second extension portion, a source line extending above the second extension portion, a pixel electrode including a main pixel electrode, a second common electrode including a second main common electrode opposed to the source line, and a first alignment film.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: July 16, 2019
    Assignee: Japan Display Inc.
    Inventor: Jin Hirosawa
  • Patent number: 10338714
    Abstract: According to one embodiment, a display device includes a first substrate including an insulating substrate, a color filter layer located above the insulating substrate, a signal line located between the insulating substrate and the color filter layer, a metal line located above the color filter layer, a first light-shielding layer stacked on the metal line, a common electrode located above the first light-shielding layer, a pixel electrode opposed to the common electrode, a second substrate opposed to the first substrate, and a liquid crystal layer held between the first substrate and the second substrate.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: July 2, 2019
    Assignee: Japan Display Inc.
    Inventor: Jin Hirosawa
  • Patent number: 10324239
    Abstract: According to one embodiment, a display device includes a first substrate and a second substrate which are opposed to each other, wherein the second substrate includes, in a display area where an image is displayed, first light shields extending in a first direction and arranged apart from each other in a second direction which crosses the first direction, second light shields extending in the second direction and arranged apart from each other in the first direction, and an intermediate layer disposed between the first light shields and the second light shields, and the first light shields cross the second light shields via the intermediate layer.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: June 18, 2019
    Assignee: Japan Display Inc.
    Inventors: Arihiro Takeda, Jin Hirosawa, Yoshitaka Yamada
  • Publication number: 20190146285
    Abstract: A liquid crystal display device includes a gate line, a source line, a first common electrode opposed to the gate line and the source line, an interlayer insulating film covering the first common electrode, a pixel electrode including a main pixel electrode and a sub-pixel electrode, the pixel electrode formed on the interlayer insulating film, a second common electrode formed on the interlayer insulating film. The second common electrode includes a second main common electrode which has intermittence at a position adjacent to the sub-pixel electrode, and a second sub-common electrode which has intermittence at a position adjacent to the main pixel electrode.
    Type: Application
    Filed: December 26, 2018
    Publication date: May 16, 2019
    Applicant: Japan Display Inc.
    Inventors: Kayoko Miyazaki, Jin Hirosawa
  • Patent number: 10268064
    Abstract: According to one embodiment, a display device comprises a first substrate including a gate line extending in the first direction, and a source line extending in a second direction, and a second substrate opposed to the first substrate. The second substrate includes a first light-blocking layer which opposed to the gate line, and a second light-blocking layer which opposed to the source line. Wherein, a subpixel is formed at a position defined by the gate line and the source line, and the color layer has a first width in the first direction, the first width is greater than a width of the subpixel, and the color layer has a lager width than the first width at a overlapping position on the first light-blocking layer.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: April 23, 2019
    Assignee: Japan Display Inc.
    Inventors: Jin Hirosawa, Kayoko Miyazaki, Arihiro Takeda
  • Publication number: 20190072794
    Abstract: According to one embodiment, a display device includes a first substrate including a first relay electrode, a second relay electrode, and a first insulating layer including a first contact hole penetrated to the first relay electrode and a second contact hole penetrated to the second relay electrode, a second substrate opposed to the first substrate, and a main spacer located between the first substrate and the second substrate, the first insulating layer further including a first concavity located between the first contact hole and the second contact hole, the main spacer being located in the first concavity, and maintaining a cell gap between the first substrate and the second substrate.
    Type: Application
    Filed: September 5, 2018
    Publication date: March 7, 2019
    Applicant: Japan Display Inc.
    Inventor: Jin HIROSAWA
  • Publication number: 20190073974
    Abstract: According to one embodiment, a display device comprises first and second substrates and a liquid crystal layer. The first substrate includes a pixel electrode and a common electrode. The second substrate is opposed to the first substrate. The liquid crystal layer is between the first substrate and the second substrate. A frame frequency for rewriting a voltage of the pixel electrode is 80 Hz or more. A liquid crystal material contained in the liquid crystal layer has negative dielectric anisotropy. Product ?nd of a gap d between the first substrate and the second substrate and refractive anisotropy ?n of the liquid crystal material is less than 0.33 ?m. The gap d is more than 2 ?m and less than 3 ?m.
    Type: Application
    Filed: September 7, 2018
    Publication date: March 7, 2019
    Applicant: Japan Display Inc.
    Inventors: Takenori HIROTA, Jin HIROSAWA, Hidemasa YAMAGUCHI, Yasuhiro TAKAHASHI
  • Publication number: 20190049799
    Abstract: According to one embodiment, a liquid crystal display device comprises first and second substrates and a liquid crystal layer between the substrates. The first substrate includes scanning lines, video lines, a sub-pixel area, a pixel electrode in the sub-pixel area, and a common electrode which generates an electric field between the pixel electrode and the common electrode. The sub-pixel area has a width of 13 ?m or less. A gap d between the first substrate and the second substrate is 2.5 ?m or less. A liquid crystal material contained in the liquid crystal layer has a refractive anisotropy ?n of 0.1 or more. A product ?nd of the gap d and the refractive anisotropy ?n is 0.20 ?m or more and 0.31 ?m or less.
    Type: Application
    Filed: August 6, 2018
    Publication date: February 14, 2019
    Applicant: Japan Display Inc.
    Inventors: Yasushi IWAKABE, Yuji MAEDE, Jin HIROSAWA
  • Patent number: 10203568
    Abstract: A liquid crystal display device includes a gate line, a source line, a first common electrode opposed to the gate line and the source line, an interlayer insulating film covering the first common electrode, a pixel electrode including a main pixel electrode and a sub-pixel electrode, the pixel electrode formed on the interlayer insulating film, a second common electrode formed on the interlayer insulating film. The second common electrode includes a second main common electrode which has intermittence at a position adjacent to the sub-pixel electrode, and a second sub-common electrode which has intermittence at a position adjacent to the main pixel electrode.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: February 12, 2019
    Assignee: JAPAN DISPLAY INC.
    Inventors: Kayoko Miyazaki, Jin Hirosawa
  • Patent number: 10126584
    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 a metal layer formed on an interlayer insulating film, arranged in contact with at least one of common electrodes adjacent to each other via a slit, and covering at least a part of the slit. The metal layer is at least partly opposed to a signal line located in correspondence with the slit and is arranged closer than the signal line to a liquid crystal layer.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: November 13, 2018
    Assignee: Japan Display Inc.
    Inventors: Yuji Maede, Jin Hirosawa, Hidemasa Yamaguchi
  • Publication number: 20180292704
    Abstract: According to one embodiment, a display device comprises first to sixth opening portions and first to third light-shielding portions, the first light-shielding portion being adjacent to the first and second opening portions, the first opening portion having an area larger than an area of the second opening portion, the second light-shielding portion being adjacent to the third and fourth opening portions, the third and fourth opening portions each having substantially an equal area to the first opening portion, the third light-shielding portion being adjacent to the fifth and sixth opening portions, the fifth and sixth opening portions each having substantially an equal area to the second opening portion.
    Type: Application
    Filed: April 2, 2018
    Publication date: October 11, 2018
    Applicant: Japan Display Inc.
    Inventor: Jin HIROSAWA
  • Publication number: 20180275468
    Abstract: According to one embodiment, an array substrate comprises source lines arranged in a first direction, gate lines arranged in second direction, pixels, first and second switching elements, a first pixel includes a first pixel electrode connected to the first switching element via a first contact hole formed on one side of a first gate line, and a second pixel includes a second pixel electrode connected to the second switching element via a second contact hole formed on the other side of the first gate line. A counter-substrate comprises a first light-shielding portion opposed to the first gate line and the first contact hole, and a second light-shielding portion opposed to the first gate line and the second contact hole. A spacer is present between substrates.
    Type: Application
    Filed: May 25, 2018
    Publication date: September 27, 2018
    Applicant: Japan Display Inc.
    Inventor: Jin HIROSAWA
  • Publication number: 20180267353
    Abstract: According to one embodiment, a display device includes a first substrate including a first insulating substrate located in a first area and a second area, and a first conductive layer provided in the second area, a second substrate including a second insulating substrate located in the first area, and a second conductive layer, and a first connection line opposed to a first side surface of the second insulating substrate to electrically connect the first conductive layer and the second conductive layer. The first connection line is formed of a photosensitive resin containing a conductive material.
    Type: Application
    Filed: March 15, 2018
    Publication date: September 20, 2018
    Applicant: Japan Display Inc.
    Inventors: Arihiro Takeda, Shoji Hinata, Yoshikatsu Imazeki, Nobuko Fukuoka, Jin Hirosawa, Yuji Sato
  • Publication number: 20180252970
    Abstract: A display device includes: a light shielding film; a plurality of image lines and a plurality of scanning lines present on an insulating base material; a pixel electrode and a common electrode present in a sub-pixel area surrounded by the plural image lines and the plural scanning lines in a plan view; and a liquid crystal layer driven by an electric field generated between the pixel electrode and the common electrode. A shape of the pixel electrode in a light transmission area surrounded by the light shielding film is a linear shape having no bending portion. The common electrode is overlapped on the plural image lines and the plural scanning lines, and has an opening overlapped on the pixel electrode. Further, each liquid crystal molecule of the liquid crystal layer has a positive dielectric constant. The sub-pixel area has a width of 13 ?m or less.
    Type: Application
    Filed: January 23, 2018
    Publication date: September 6, 2018
    Applicant: Japan Display Inc.
    Inventors: Yasushi IWAKABE, Jin HIROSAWA, Koichi IGETA
  • Patent number: 10007155
    Abstract: According to one embodiment, an array substrate comprises source lines arranged in a first direction, gate lines arranged in second direction, pixels, first and second switching elements, a first pixel includes a first pixel electrode connected to the first switching element via a first contact hole formed on one side of a first gate line, and a second pixel includes a second pixel electrode connected to the second switching element via a second contact hole formed on the other side of the first gate line. A counter-substrate comprises a first light-shielding portion opposed to the first gate line and the first contact hole, and a second light-shielding portion opposed to the first gate line and the second contact hole. A spacer is present between substrates.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: June 26, 2018
    Assignee: Japan Display Inc.
    Inventor: Jin Hirosawa
  • Patent number: 9983431
    Abstract: According to one embodiment, a display device includes a first light-shielding portion and a second light-shielding portion arranged at a first pitch in a first direction, and a light-shielding layer including a first portion overlapping the first light-shielding portion and a second portion overlapping the second light-shielding portion in planar view, a width center of the second light-shielding portion being displaced from a width center of the second portion in the first direction, an opening portion being located between the first portion and the second portion, the first portion and the second portion being arranged at a second pitch different from the first pitch in the first direction.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: May 29, 2018
    Assignee: Japan Display Inc.
    Inventor: Jin Hirosawa
  • Patent number: 9971207
    Abstract: A liquid crystal display device related to one embodiment includes a gate line arranged along a first direction, a first pixel including a first switching element connected to the gate line, and a first pixel electrode connected to the first switching element via a first contact hole arranged in an insulation layer, a second pixel including a second switching element connected to the gate line, and a second pixel electrode connected to the second switching element via a second contact hole arranged in the insulation layer, a first spacer arranged in the fixed pixel, and a second spacer arranged in the second pixel, wherein the first spacer and the second spacer are arranged substantially on the same straight line in the first direction, and the first contact hole and the second contact hole are alternately arranged sandwiching a straight line connecting the first spacer and the second spacer.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: May 15, 2018
    Assignee: Japan Display Inc.
    Inventors: Hirofumi Funakoshi, Jin Hirosawa, Masakatsu Kitani, Daichi Hosokawa