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).

  • 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
  • Patent number: 9921439
    Abstract: A first substrate includes a gate line extending in a first direction, a first interlayer insulating film covering the gate line, a first common electrode formed on the first interlayer insulating film extending in a second direction crossing the first direction, a second interlayer insulating film covering the first common electrode, a source line extending in the second direction, and a third interlayer insulating film covering the source line. A pixel electrode includes a main pixel electrode extending in the second direction on the third interlayer insulating film. A second common electrode includes a second main common electrode extending in the second direction on the third interlayer insulating film and facing the source line. The second common electrode is set to the same potential as the first common electrode. A first alignment film covers the pixel electrode and the second common electrode.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: March 20, 2018
    Assignee: Japan Display Inc.
    Inventor: Jin Hirosawa
  • Publication number: 20180059840
    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: Application
    Filed: August 11, 2017
    Publication date: March 1, 2018
    Applicant: Japan Display Inc.
    Inventor: Jin Hirosawa
  • Publication number: 20180046019
    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: Application
    Filed: October 10, 2017
    Publication date: February 15, 2018
    Applicant: Japan Display Inc.
    Inventor: Jin HIROSAWA
  • Patent number: 9880430
    Abstract: In one embodiment, a liquid crystal display device includes a first substrate and a second substrate. The first substrate includes a first gate line and a second gate line extending in a first direction, respectively. A first source line and a second source line extend in a second direction orthogonally crossing the first direction. A pixel electrode includes a first main pixel electrode in the shape of a belt located on an edge of the first source line and extending in the second direction, and a second main pixel electrode in the shape of a belt located on an edge of the second source line and extending in the second direction. A second substrate includes a main common electrode located between the first main pixel electrode and the second main pixel electrode and extending in the second direction.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: January 30, 2018
    Assignee: JAPAN DISPLAY INC.
    Inventors: Arihiro Takeda, Jin Hirosawa
  • Patent number: 9841641
    Abstract: A liquid crystal display device includes a first substrate and a second substrate. The first substrate includes a gate line and an auxiliary capacitance line extending in a first direction, a source line extending in a second direction orthogonally crossing the first direction, and a pixel electrode having a main pixel electrode arranged on the auxiliary capacitance line and extending in the first direction. The second substrate includes a common electrode having a main common electrode arranged above the gate line and extending in the first direction. A liquid crystal layer is held between the first substrate and the second substrate having liquid crystal molecules. The liquid crystal molecules are initially aligned in the first direction in a splay alignment state between the first substrate and the second substrate in a state where electric field is not formed between the pixel electrode and the common electrode.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: December 12, 2017
    Assignee: JAPAN DISPLAY INC.
    Inventor: Jin Hirosawa
  • Patent number: 9835919
    Abstract: According to one embodiment, a display device comprises metal lines which are in contact with a structural electrode. A first filter overlaps with first and second pixels, and a second filter overlaps with second and fourth pixels. First to fourth structural electrodes overlap with first to fourth pixels respectively. A first slit extends between first and second pixels, and a second slit extends between third and fourth pixels. The first metal line is formed between first and second structural electrodes to cover part of the first slit, and the second metal line is formed between third and fourth structural electrodes to cover part of the second slit.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: December 5, 2017
    Assignee: Japan Display Inc.
    Inventors: Kenta Seki, Gen Koide, Yuji Maede, Jin Hirosawa
  • Publication number: 20170343878
    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: Application
    Filed: August 17, 2017
    Publication date: November 30, 2017
    Applicant: Japan Display Inc.
    Inventor: Jin Hirosawa
  • Patent number: 9817284
    Abstract: In one embodiment, a first substrate includes a sub-pixel electrode extending in a first direction, a first main pixel electrode connected with one end of the sub-pixel electrode and extending in a second direction orthogonally crossing the first direction, and a second main pixel electrode connected with the other end of the sub-pixel electrode and extending in the second direction. A second substrate includes first and second sub-common electrodes arranged on both sides sandwiching the sub-pixel electrode, a first main common electrode connected with the first sub-common electrode and extending along the second direction opposite to the extending direction of the first main pixel electrode on one end side of the sub-pixel electrode, and a second main common electrode connected with the second sub-common electrode and extending along the second direction opposite to the extending direction of the second main pixel electrode on the other end side of the sub-pixel electrode.
    Type: Grant
    Filed: April 20, 2015
    Date of Patent: November 14, 2017
    Assignee: Japan Display Inc.
    Inventors: Yusuke Morita, Jin Hirosawa
  • Patent number: 9810957
    Abstract: An array substrate includes a gate line extending in a first direction, a source line extending in a second direction orthogonally crossing the first direction and an auxiliary capacitance line having a trunk portion extending in the first direction so as to cross the source line and a branch portion branched from the trunk portion and extending along the source line. A switching element includes a drain line arranged under the auxiliary capacitance line so as to face the trunk portion and the branch portion thereof. A pixel electrode includes a main pixel electrode extending substantially in parallel to the source line and a contact portion electrically connected with the drain line. A counter substrate includes a couple of main common electrodes extending substantially in parallel to the main pixel electrode on the both sides sandwiching the main pixel electrode.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: November 7, 2017
    Assignee: Japan Display Inc.
    Inventors: Arihiro Takeda, Jin Hirosawa, Tetsuya Iizuka, Hirokazu Morimoto
  • Patent number: 9804432
    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: May 19, 2015
    Date of Patent: October 31, 2017
    Assignee: Japan Display Inc.
    Inventor: Jin Hirosawa
  • Patent number: 9798198
    Abstract: According to one embodiment, a liquid crystal display device includes a first interlayer insulation film located above a first gate line and a second gate line, a first common electrode extending over the first interlayer insulation film, a second interlayer insulation film covering the first common electrode, and a first pixel electrode disposed on the second interlayer insulation film. The first common electrode extends, from a position opposed to the first pixel electrode, beyond the source line in the first direction and beyond the gate line in the second direction.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: October 24, 2017
    Assignee: Japan Display Inc.
    Inventors: Keisuke Takano, Jin Hirosawa, Arihiro Takeda, Hirokazu Morimoto
  • Patent number: 9791757
    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: September 9, 2015
    Date of Patent: October 17, 2017
    Assignee: Japan Display Inc.
    Inventor: Jin Hirosawa
  • Patent number: 9785001
    Abstract: According to one embodiment, a liquid crystal display apparatus includes a first substrate including a first electrode and an insulating layer arranged so as to cover an edge of the first electrode, a second substrate including a second electrode facing the first electrode and a second slit from which the second electrode is removed, and a liquid crystal layer interposed between the first substrate and the second substrate. The first electrode includes a plurality of first slits extending inwardly from the edge of the first electrode. The insulating layer and the plurality of first slits are arranged such that a position of an end of the insulating layer and a position of a tip to which the first slit extends are apart from each other in a region between the edge of the first electrode and the second slit in a direction in which the first slit extends.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: October 10, 2017
    Assignee: JAPAN DISPLAY INC.
    Inventors: Arihiro Takeda, Jin Hirosawa
  • Publication number: 20170285417
    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: June 20, 2017
    Publication date: October 5, 2017
    Applicant: Japan Display Inc.
    Inventors: Kayoko MIYAZAKI, Jin HIROSAWA