Patents by Inventor Shigesumi Araki

Shigesumi Araki 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: 20210409584
    Abstract: The display device includes a liquid crystal panel having pixels, and an imaging device arranged on a backside of the liquid crystal display panel, wherein in an imaging area of the liquid crystal display panel overlapping the imaging device, the pixels are controlled so that black display pixels and white display pixels are alternately lined up in a row direction according to an operation of the imaging device.
    Type: Application
    Filed: September 15, 2021
    Publication date: December 30, 2021
    Applicant: Japan Display Inc.
    Inventors: Tetsuya KOJIMA, Mitsutaka OKITA, Daiichi SUZUKI, Emi HIGANO, Shigesumi ARAKI
  • Patent number: 11137635
    Abstract: According to one embodiment, a display device includes a display panel including a display area which displays images, a non-display area surrounding the display area, and a bend area in the non-display area, a first optical film located on the display panel and comprising an end portion which overlaps the bend area, an adhesive layer which adheres the first optical film and the display panel together and a non-adhesive layer located between the first optical film and the display panel, while overlapping the bend area, wherein the non-adhesive layer is in contact with an upper surface of the display panel.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: October 5, 2021
    Assignee: Japan Display Inc.
    Inventors: Emi Higano, Toshiyuki Higano, Shigesumi Araki
  • Patent number: 10928672
    Abstract: A display device includes: a first terminal group which is disposed on a front surface of a flexible first substrate having the front surface and is electrically connected to a plurality of pixel electrodes; a second terminal group which is disposed on a back surface of a second substrate and is electrically connected to a plurality of first electrodes of the second substrate; a display region which is disposed on each of the first substrate and the second substrate and overlaps a liquid crystal layer; and first and second peripheral regions which are disposed on the first substrate and the second substrate and located on an outer side of an adhesive. The first terminal group is formed in a first terminal arrangement region of the first peripheral region of the first substrate. The second terminal group is formed in a second terminal arrangement region of the second peripheral region of the second substrate. The first peripheral region is bent toward one side in a Z direction.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: February 23, 2021
    Assignee: Japan Display Inc.
    Inventors: Emi Higano, Shigesumi Araki, Toshiyuki Higano
  • Patent number: 10816857
    Abstract: According to one embodiment, a display device comprises first and second flexible substrates, a sealant, a liquid crystal layer, a film, a first protrusion, scan signal lines, and video signal lines. The first flexible substrate includes first and second surfaces. The second flexible substrate includes third and fourth surfaces. The film is disposed on the fourth surface. The first protrusion is disposed on one of first and third surfaces. The scan signal lines extend in a first direction. The video signal lines extend in a second direction. The first protrusion overlaps one of the scan signal lines and the video signal lines, and extends in one of first and second 0directions.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: October 27, 2020
    Assignee: Japan Display Inc.
    Inventors: Emi Higano, Toshiyuki Higano, Shigesumi Araki
  • Publication number: 20200333653
    Abstract: According to one embodiment, a display device includes a flexible base, a display area, first lines arranged in a first direction, pixel electrodes, and a first inorganic insulating layer contacting the lines. The display area includes a first area in which the lines are arranged in the first direction at a first pitch and a second area in which the lines are arranged in the first direction at a second pitch greater than the first pitch, and the second area is located between the first area and an edge of the base in the first direction. In the second area, the first inorganic insulating layer comprises a first slit extending along the lines between adjacent lines.
    Type: Application
    Filed: July 7, 2020
    Publication date: October 22, 2020
    Applicant: Japan Display Inc.
    Inventor: Shigesumi Araki
  • Publication number: 20200301188
    Abstract: Provided is a display device including an array substrate, a pixel, a dimming element, and a counter substrate. The pixel is located over the array substrate and includes a first electrode, a second electrode, and a liquid crystal layer over the first electrode and the second electrode. The dimming element is located over the array substrate and includes a third electrode, the liquid crystal layer over the third electrode, and a fourth electrode over the liquid crystal layer. The counter substrate is located over the fourth electrode.
    Type: Application
    Filed: March 13, 2020
    Publication date: September 24, 2020
    Inventors: Shigesumi Araki, Toshiharu Matsushima, Shinichi Komura
  • Patent number: 10747036
    Abstract: According to one embodiment, a display device includes a flexible base, a display area, first lines arranged in a first direction, pixel electrodes, and a first inorganic insulating layer contacting the lines. The display area includes a first area in which the lines are arranged in the first direction at a first pitch and a second area in which the lines are arranged in the first direction at a second pitch greater than the first pitch, and the second area is located between the first area and an edge of the base in the first direction. In the second area, the first inorganic insulating layer comprises a first slit extending along the lines between adjacent lines.
    Type: Grant
    Filed: October 1, 2018
    Date of Patent: August 18, 2020
    Assignee: Japan Display Inc.
    Inventor: Shigesumi Araki
  • Patent number: 10649253
    Abstract: A display panel including a first substrate including a pixel electrode, a second substrate, a third substrate, a liquid crystal layer between the first substrate and the second substrate, and a color filter. The first substrate is located between the liquid crystal layer and the color filter. The first substrate includes a first resin base, or the second substrate includes a second resin base. A display panel may include a first polarizer plate. The third substrate may be located between the first substrate and the first polarizer plate.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: May 12, 2020
    Assignee: Japan Display Inc.
    Inventors: Toshifumi Takehara, Shigesumi Araki
  • Patent number: 10571767
    Abstract: The structure of the invention is: a pair of a first scanning line and a second scanning line extend in a first direction on the TFT substrate, a first pixel that has a first pixel electrode and a second pixel that as a second pixel electrode are formed between the pairs of the scanning lines, a connection area is formed between the first scanning line and the second scanning line; a first TFT, a first through hole that connects the first TFT with the first pixel electrode, and a second TFT, a second through hole that connects the second TFT with the second pixel electrode are formed in the connection area; the first pixel electrode and the second pixel electrode are formed on an organic passivation film; the organic passivation film is not formed in an area where the first through hole and the second through hole are formed.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: February 25, 2020
    Assignee: Japan Display Inc.
    Inventors: Genki Asozu, Shigesumi Araki
  • Publication number: 20200050055
    Abstract: According to one embodiment, a display device includes a display panel including a display area which displays images, a non-display area surrounding the display area, and a bend area in the non-display area, a first optical film located on the display panel and comprising an end portion which overlaps the bend area, an adhesive layer which adheres the first optical film and the display panel together and a non-adhesive layer located between the first optical film and the display panel, while overlapping the bend area, wherein the non-adhesive layer is in contact with an upper surface of the display panel.
    Type: Application
    Filed: August 2, 2019
    Publication date: February 13, 2020
    Applicant: Japan Display Inc.
    Inventors: Emi HIGANO, Toshiyuki HIGANO, Shigesumi ARAKI
  • Patent number: 10295729
    Abstract: According to one embodiment, a liquid crystal display device includes a display device with a first main surface and a second main surface which is opposite to the first main surface, a first member disposed in the first main surface side of the display panel, a second member disposed between the first member and the display panel, and a cover member disposed in the second main surface side of the display panel, and having a rigidity greater than that of the display panel. The coefficient of thermal expansion of the second member is greater than that of the first member.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: May 21, 2019
    Assignee: Japan Display Inc.
    Inventors: Emi Higano, Toshiyuki Higano, Shigesumi Araki
  • Patent number: 10281778
    Abstract: A liquid crystal display device includes a liquid crystal between a TFT substrate including pixels formed in a matrix, and a counter substrate. A pixel electrode is formed in an area surrounded by scanning lines and video signal lines. A common electrode is formed in a lower layer of the pixel electrode through an interlayer insulating film. A long side of the pixel electrode of a first pixel is inclined at a first angle clockwise at a right angle to the extending direction of the scanning line. A long side of the pixel electrode of a second pixel is inclined at the first angle counterclockwise at a right angle to the extending direction of the scanning line. The liquid crystal is a negative type liquid crystal. Further, a protrusion formed in the long side of the pixel electrode has a side parallel to the extending direction of the scanning line.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: May 7, 2019
    Assignee: Japan Display Inc.
    Inventors: Youichi Asakawa, Shigesumi Araki
  • Patent number: 10281776
    Abstract: According to one embodiment, a liquid crystal display comprises first and second substrates and a liquid crystal layer. The first substrate comprises pixel electrodes and a common electrode in a display area. The display area includes a first display area and a second display area which is closer to an edge of the display area than the first display area. The pixel electrodes include first and second pixel electrodes, the first pixel electrode being located in a pixel in the first display area, the second pixel electrode being located in a pixel in the second display area. A second area by which the second pixel electrode and the common electrode face each other is greater than a first area by which the first pixel electrode and the common electrode face each other.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: May 7, 2019
    Assignee: Japan Display Inc.
    Inventor: Shigesumi Araki
  • Publication number: 20190101785
    Abstract: According to one embodiment, a display device includes a flexible base, a display area, first lines arranged in a first direction, pixel electrodes, and a first inorganic insulating layer contacting the lines. The display area includes a first area in which the lines are arranged in the first direction at a first pitch and a second area in which the lines are arranged in the first direction at a second pitch greater than the first pitch, and the second area is located between the first area and an edge of the base in the first direction. In the second area, the first inorganic insulating layer comprises a first slit extending along the lines between adjacent lines.
    Type: Application
    Filed: October 1, 2018
    Publication date: April 4, 2019
    Applicant: Japan Display Inc.
    Inventor: Shigesumi ARAKI
  • Patent number: 10175818
    Abstract: A display device is configured that the common electrode wiring layer is divided in a source wiring layer direction, the metal wiring layer is disposed above the source wiring layer at a position in contact with the upper part of the common electrode wiring layer, and the metal wiring layer is not disposed at a position where the common electrode wiring layer is divided. Alternatively, the metal wiring layer is not disposed at a position between the same colors as those at the division position of the common electrode wiring layer.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: January 8, 2019
    Assignee: Japan Display Inc.
    Inventors: Shigesumi Araki, Mitsutaka Okita, Kazuhiro Nishiyama, Yoshitoshi Kida, Koji Ishizaki, Kohei Azumi, Hiroshi Mizuhashi
  • Publication number: 20180356683
    Abstract: A display device includes: a first terminal group which is disposed on a front surface of a flexible first substrate having the front surface and is electrically connected to a plurality of pixel electrodes; a second terminal group which is disposed on a back surface of a second substrate and is electrically connected to a plurality of first electrodes of the second substrate; a display region which is disposed on each of the first substrate and the second substrate and overlaps a liquid crystal layer; and first and second peripheral regions which are disposed on the first substrate and the second substrate and located on an outer side of an adhesive. The first terminal group is formed in a first terminal arrangement region of the first peripheral region of the first substrate. The second terminal group is formed in a second terminal arrangement region of the second peripheral region of the second substrate. The first peripheral region is bent toward one side in a Z direction.
    Type: Application
    Filed: May 30, 2018
    Publication date: December 13, 2018
    Applicant: Japan Display Inc.
    Inventors: Emi HIGANO, Shigesumi ARAKI, Toshiyuki HIGANO
  • Publication number: 20180341148
    Abstract: A display panel including a first substrate including a pixel electrode, a second substrate, a third substrate, a liquid crystal layer between the first substrate and the second substrate, and a color filter. The first substrate is located between the liquid crystal layer and the color filter. The first substrate includes a first resin base, or the second substrate includes a second resin base. A display panel may include a first polarizer plate. The third substrate may be located between the first substrate and the first polarizer plate.
    Type: Application
    Filed: May 14, 2018
    Publication date: November 29, 2018
    Inventors: Toshifumi TAKEHARA, Shigesumi ARAKI
  • Publication number: 20180284523
    Abstract: According to one embodiment, a display device comprises first and second flexible substrates, a liquid crystal layer, first and second spacers. The first flexible substrate includes first and second surfaces. The second flexible substrate includes a third surface opposite to the first surface and a fourth surface opposite to the third surface. The liquid crystal layer is disposed between first and third surfaces. The first spacer is disposed on the first surface. The second spacer is disposed on the third surface. One of the first and second spacers has a concave and the other of the first and second spacers has a convex. The tip of the convex contacts the concave.
    Type: Application
    Filed: March 28, 2018
    Publication date: October 4, 2018
    Applicant: Japan Display Inc.
    Inventors: Emi HIGANO, Toshiyuki Higano, Shigesumi Araki
  • Publication number: 20180284515
    Abstract: According to one embodiment, a display device comprises first and second flexible substrates, a sealant, a liquid crystal layer, a film, a first protrusion, scan signal lines, and video signal lines. The first flexible substrate includes first and second surfaces. The second flexible substrate includes third and fourth surfaces. The film is disposed on the fourth surface. The first protrusion is disposed on one of first and third surfaces. The scan signal lines extend in a first direction. The video signal lines extend in a second direction. The first protrusion overlaps one of the scan signal lines and the video signal lines, and extends in one of first and second 0directions.
    Type: Application
    Filed: March 28, 2018
    Publication date: October 4, 2018
    Applicant: Japan Display Inc.
    Inventors: Emi HIGANO, Toshiyuki Higano, Shigesumi Araki
  • Patent number: 10054819
    Abstract: According to one embodiment, a display device includes an insulating substrate, a wavelength conversion element, a light propagation layer including a light-path portion formed between the insulating substrate and the wavelength conversion element, wherein an area of a surface on the insulating substrate side is greater than an area of a surface on the wavelength conversion element side, and a non-light-path portion formed of a material having a refractive index less than the light-path portion, the light-path portion being sandwiched between the non-light-path portions, and a reflective film formed between the non-light-path portion and the wavelength conversion element.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: August 21, 2018
    Assignee: Japan Display Inc.
    Inventors: Hirohisa Miki, Shigesumi Araki