Patents by Inventor Toshiharu Matsushima

Toshiharu Matsushima 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).

  • DISPLAY DEVICE
    Publication number: 20180129103
    Abstract: According to one embodiment, a display device includes a first substrate with a first alignment film, a second substrate with a second alignment film, and a liquid crystal layer interposed therebetween. The first substrate has first and second electrodes. An initial alignment direction of liquid crystal molecules of the liquid crystal layer is parallel to a first direction or a direction orthogonal to the first direction. The second electrode includes comblike electrodes extending parallel to the first direction and a connecting portion which connects the comblike electrodes. The connecting portion includes a projection which projects in a second direction more than an outermost comblike electrode.
    Type: Application
    Filed: January 10, 2018
    Publication date: May 10, 2018
    Applicant: Japan Display Inc.
    Inventor: Toshiharu MATSUSHIMA
  • LIQUID CRYSTAL DISPLAY DEVICE AND ELECTRONIC APPARATUS
    Publication number: 20180129097
    Abstract: According to an aspect, a liquid crystal display device includes a first substrate; a second substrate arranged to be opposed to the first substrate; a liquid crystal layer arranged between the first substrate and the second substrate; a first electrode arranged for each of a plurality of pixels that are arranged in a matrix; a second electrode arranged at a position opposed to the first electrode; a plurality of first areas in which light transmission is suppressed between the first substrate and the second substrate, the first areas extending in at least one direction to traverse the pixels; and a second area in which liquid crystal molecules in the liquid crystal layer are rotated according to an electric field acting between the first electrode and the second electrode, the second area being sandwiched between the first areas.
    Type: Application
    Filed: January 4, 2018
    Publication date: May 10, 2018
    Inventor: Toshiharu MATSUSHIMA
  • Display device
    Patent number: 9958730
    Abstract: According to one embodiment, a display device includes a first substrate with a first alignment film, a second substrate with a second alignment film, and a liquid crystal layer interposed therebetween. The first substrate has first and second electrodes. An initial alignment direction of liquid crystal molecules of the liquid crystal layer is parallel to a first direction or a direction orthogonal to the first direction. The second electrode includes comblike electrodes extending parallel to the first direction and a connecting portion which connects the comblike electrodes. The connecting portion includes a projection which projects in a second direction more than an outermost comblike electrode.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: May 1, 2018
    Assignee: Japan Display Inc.
    Inventor: Toshiharu Matsushima
  • DISPLAY DEVICE, ELECTRONIC APPARATUS, AND METHOD OF MANUFACTURING DISPLAY DEVICE
    Publication number: 20180107077
    Abstract: A display device includes an electrode layer and a liquid crystal layer. The electrode layer has a first electrode and a second electrode. The second electrode is opposed to the first electrode and having a plurality of openings extending in a same extending direction. The liquid crystal layer is disposed on the electrode layer. The liquid crystal molecules of the liquid crystal layer in a region in proximity to one side of the opening and liquid crystal molecules of the liquid crystal layer in a region in proximity to another side of the opening, the sides of the opening being opposed to each other in a width direction of the opening, are rotated in opposite directions from each other and aligned.
    Type: Application
    Filed: December 15, 2017
    Publication date: April 19, 2018
    Inventor: Toshiharu Matsushima
  • Display device
    Patent number: 9946127
    Abstract: According to one embodiment, a display device includes first and second substrates, and liquid crystal layer. The first substrate includes first and second electrodes. The second electrode includes comblike electrodes extending in parallel to a first direction and tapered toward tips thereof, and a connecting portion which connects the comblike electrodes. An initial alignment direction is parallel to the first direction or a direction orthogonal to the first direction. The comblike electrode includes a first part having sides each form a first angle with the first direction, and a second part having sides each form a second angle with the first direction, the second angle being greater than the first angle.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: April 17, 2018
    Assignee: Japan Display Inc.
    Inventor: Toshiharu Matsushima
  • Display device and electronic apparatus
    Patent number: 9946126
    Abstract: According to an aspect, a display device has a first electrode, a second electrode and liquid crystal layer. When a voltage is not applied to the first and second electrodes, the major axes of the liquid crystal molecules are oriented in a third direction. When a voltage is applied between the first and second electrodes, the major axes are oriented so as to rise in a direction perpendicular to a first substrate while rotating clockwise in a vicinity of one of long sides of comb tooth portion that face each other and counterclockwise in a vicinity of the other of the long sides. An angle between an electrode base-side portion of a long side of each comb tooth portions and the third direction is larger than an angle between a distal end-side portion of the long side of each comb tooth portions and the third direction.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: April 17, 2018
    Assignee: Japan Display Inc.
    Inventors: Hayato Kurasawa, Toshiharu Matsushima
  • Liquid crystal display device
    Patent number: 9910323
    Abstract: A liquid crystal display device according to an aspect of the present invention includes a first substrate including a pixel electrode and a common electrode, a second substrate opposed to the first substrate, and a liquid crystal layer disposed between the first substrate and the second substrate. The pixel or common electrode includes, in a single subpixel, belt-like portions arranged in a first direction, and coupling portions coupling the adjacent belt-like portions. Each belt-like portion continuously extends from one side to an other side of a central line of the subpixel, that is parallel with the first direction. The coupling portions include one or more first coupling portions provided on the one side of the central line, and one or more second coupling portions provided on the other side of the central line.
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: March 6, 2018
    Assignee: Japan Display Inc.
    Inventors: Toshiharu Matsushima, Daichi Suzuki
  • LIQUID CRYSTAL DISPLAY DEVICE
    Publication number: 20180059486
    Abstract: According to one embodiment, a liquid crystal display device includes second substrates, a light-shielding layer, and a liquid crystal layer. The first substrate includes pixel electrodes, a common electrode, and subpixel areas each including area in which the pixel electrode is present and a second area in which the pixel electrode is not present. Each of the subpixel areas includes first and second sides. The first area includes an axial area and branch areas. The second area includes a gap area between the adjacent branch areas. The axial area includes a projection portion projecting to the second side and in alignment with the gap area, and overlaps the light-shielding layer.
    Type: Application
    Filed: August 11, 2017
    Publication date: March 1, 2018
    Applicant: Japan Display Inc.
    Inventor: Toshiharu Matsushima
  • Liquid crystal display device and electronic apparatus
    Patent number: 9891456
    Abstract: According to an aspect, a liquid crystal display device includes a first substrate; a second substrate arranged to be opposed to the first substrate; a liquid crystal layer arranged between the first substrate and the second substrate; a first electrode arranged for each of a plurality of pixels that are arranged in a matrix; a second electrode arranged at a position opposed to the first electrode; a plurality of first areas in which light transmission is suppressed between the first substrate and the second substrate, the first areas extending in at least one direction to traverse the pixels; and a second area in which liquid crystal molecules in the liquid crystal layer are rotated according to an electric field acting between the first electrode and the second electrode, the second area being sandwiched between the first areas.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: February 13, 2018
    Assignee: Japan Display Inc.
    Inventor: Toshiharu Matsushima
  • Display device, electronic apparatus, and method of manufacturing display device
    Patent number: 9874792
    Abstract: A display device includes an electrode layer and a liquid crystal layer. The electrode layer has a first electrode and a second electrode. The second electrode is opposed to the first electrode and having a plurality of openings extending in a same extending direction. The liquid crystal layer is disposed on the electrode layer. The liquid crystal molecules of the liquid crystal layer in a region in proximity to one side of the opening and liquid crystal molecules of the liquid crystal layer in a region in proximity to another side of the opening, the sides of the opening being opposed to each other in a width direction of the opening, are rotated in opposite directions from each other and aligned.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: January 23, 2018
    Assignee: Japan Display Inc.
    Inventor: Toshiharu Matsushima
  • LIQUID CRYSTAL DISPLAY DEVICE
    Publication number: 20180004050
    Abstract: According to an aspect, a liquid crystal display device includes: a first substrate; a second substrate; a liquid crystal layer between the first and second substrates; pixels each including sub-pixels corresponding to different color areas; a first electrode in each sub-pixel; and a second electrode facing the first electrode. The first electrode includes an electrode base portion extending in a first direction; and a plurality of comb tooth portions extending in a second direction from the electrode base portion. A slit pitch of a sub-pixel in one color area and a slit pitch of a sub-pixel in the other color area of at least two color areas out of different color areas are different in size, each slit pitch corresponding to a gap between the comb tooth portions adjacent to each other.
    Type: Application
    Filed: September 13, 2017
    Publication date: January 4, 2018
    Inventors: Toshiharu MATSUSHIMA, Keiji TAKIZAWA, Toshinori UEHARA
  • Display device
    Patent number: 9835910
    Abstract: According to one embodiment, a display device includes first and second substrates, and liquid crystal layer. The first substrate includes first and second electrodes. The second electrode includes comblike electrodes extending in parallel to a first direction and tapered toward tips thereof, and a connecting portion which connects the comblike electrodes. An initial alignment direction is parallel to the first direction or a direction orthogonal to the first direction. The comblike electrode includes a first part having sides each form a first angle with the first direction, and a second part having sides each form a second angle with the first direction, the second angle being greater than the first angle.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: December 5, 2017
    Assignee: Japan Display Inc.
    Inventor: Toshiharu Matsushima
  • DISPLAY DEVICE
    Publication number: 20170336685
    Abstract: According to one embodiment, a display device includes first and second substrates, and liquid crystal layer. The first substrate includes first and second electrodes. The second electrode includes comblike electrodes extending in parallel to a first direction and tapered toward tips thereof, and a connecting portion which connects the comblike electrodes. An initial alignment direction is parallel to the first direction or a direction orthogonal to the first direction. The comblike electrode includes a first part having sides each form a first angle with the first direction, and a second part having sides each form a second angle with the first direction, the second angle being greater than the first angle.
    Type: Application
    Filed: July 26, 2017
    Publication date: November 23, 2017
    Applicant: Japan Display Inc.
    Inventor: Toshiharu MATSUSHIMA
  • DISPLAY DEVICE AND ELECTRONIC APPARATUS
    Publication number: 20170322441
    Abstract: The present display device includes a liquid crystal panel having a liquid crystal layer between an array substrate and a facing substrate. The array substrate has an electrode layer having an upper electrode and a lower electrode facing each other in a Z direction, and an opening including a plurality of slits extending in an X direction is formed in the upper electrode and the lower electrode. The liquid crystal layer is provided on the electrode layer, liquid crystal molecules in vicinity regions on one side and the other side of the opening which face each other in a width direction of each slit are oriented as rotating in reverse to each other, and the facing substrate has a conductive layer.
    Type: Application
    Filed: July 26, 2017
    Publication date: November 9, 2017
    Inventor: Toshiharu Matsushima
  • DISPLAY DEVICE
    Publication number: 20170293184
    Abstract: According to one embodiment, a display device includes a first substrate with a first alignment film, a second substrate with a second alignment film, and a liquid crystal layer interposed therebetween. The first substrate has first and second electrodes. An initial alignment direction of liquid crystal molecules of the liquid crystal layer is parallel to a first direction or a direction orthogonal to the first direction. The second electrode includes comblike electrodes extending parallel to the first direction and a connecting portion which connects the comblike electrodes. The connecting portion includes a projection which projects in a second direction more than an outermost comblike electrode.
    Type: Application
    Filed: June 27, 2017
    Publication date: October 12, 2017
    Applicant: Japan Display Inc.
    Inventor: Toshiharu MATSUSHIMA
  • Liquid crystal display device
    Patent number: 9785021
    Abstract: According to an aspect, a liquid crystal display device includes: a first substrate; a second substrate; a liquid crystal layer between the first and second substrates; pixels each including sub-pixels corresponding to different color areas; a first electrode in each sub-pixel; and a second electrode facing the first electrode. The first electrode includes an electrode base portion extending in a first direction; and a plurality of comb tooth portions extending in a second direction from the electrode base portion. A slit pitch of a sub-pixel in one color area and a slit pitch of a sub-pixel in the other color area of at least two color areas out of different color areas are different in size, each slit pitch corresponding to a gap between the comb tooth portions adjacent to each other.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: October 10, 2017
    Assignee: Japan Display Inc.
    Inventors: Toshiharu Matsushima, Keiji Takizawa, Toshinori Uehara
  • DISPLAY DEVICE AND ELECTRONIC APPARATUS
    Publication number: 20170277005
    Abstract: According to an aspect, a display device has a first electrode, a second electrode and liquid crystal layer. When a voltage is not applied to the first and second electrodes, the major axes of the liquid crystal molecules are oriented in a third direction. When a voltage is applied between the first and second electrodes, the major axes are oriented so as to rise in a direction perpendicular to a first substrate while rotating clockwise in a vicinity of one of long sides of comb tooth portion that face each other and counterclockwise in a vicinity of the other of the long sides. An angle between an electrode base-side portion of a long side of each comb tooth portions and the third direction is larger than an angle between a distal end-side portion of the long side of each comb tooth portions and the third direction.
    Type: Application
    Filed: June 5, 2017
    Publication date: September 28, 2017
    Inventors: Hayato Kurasawa, Toshiharu Matsushima
  • LIQUID CRYSTAL DISPLAY DEVICE
    Publication number: 20170255034
    Abstract: A liquid crystal display device comprises a first substrate and a liquid crystal layer. The substrate includes a pixel electrode and sub-pixel areas including a first area and a second area. The first area is an area where the pixel electrode exists, the second area is an area where the pixel electrode does not exist. The first area includes first and second main areas. The second area includes a first gap area extending in a second direction, between the first and second main areas. The first gap area includes first and second end parts in the second direction, and a central part between the first and second end parts. A width of the first gap area in the first direction is greater at the central part than at any one of the first end part and the second end part.
    Type: Application
    Filed: March 1, 2017
    Publication date: September 7, 2017
    Applicant: Japan Display Inc.
    Inventor: Toshiharu MATSUSHIMA
  • Display device and electronic apparatus
    Patent number: 9746706
    Abstract: The present display device includes a liquid crystal panel having a liquid crystal layer between an array substrate and a facing substrate. The array substrate has an electrode layer having an upper electrode and a lower electrode facing each other in a Z direction, and an opening including a plurality of slits extending in an X direction is formed in the upper electrode and the lower electrode. The liquid crystal layer is provided on the electrode layer, liquid crystal molecules in vicinity regions on one side and the other side of the opening which face each other in a width direction of each slit are oriented as rotating in reverse to each other, and the facing substrate has a conductive layer.
    Type: Grant
    Filed: October 21, 2013
    Date of Patent: August 29, 2017
    Assignee: Japan Display Inc.
    Inventor: Toshiharu Matsushima
  • LIQUID CRYSTAL DISPLAY DEVICE
    Publication number: 20170242310
    Abstract: According to one embodiment, a liquid crystal display device comprises a liquid crystal and first and second substrates. The first substrate comprises pixel electrodes, a common electrode and sub-pixel areas. The sub-pixel areas each have a first area in which the pixel electrodes is provided and the second area in which the pixel electrode is not provided. The sub-pixel areas include first and second sub-pixel areas. A shortest distance between the first area of the each first sub-pixel area and the first area of the associated second sub-pixel area is 5 ?m or less. When an image is displayed, a polarities of the pixel electrodes in the first and second sub-pixel areas are different from each other.
    Type: Application
    Filed: February 23, 2017
    Publication date: August 24, 2017
    Applicant: Japan Display Inc.
    Inventor: Toshiharu MATSUSHIMA