Patents by Inventor Yuki KURAMOTO

Yuki KURAMOTO 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: 20240085743
    Abstract: In order to avoid generation of black unevenness caused by the water intrusion into a liquid crystal display device, there is to provide a liquid crystal display device including a display area and a terminal portion, in which a TFT substrate with an organic passivation film formed and an opposite substrate are adhered to each other by a seal portion and a liquid crystal is enclosed there, wherein in the seal portion of the TFT substrate, a groove-shaped through-hole is formed in the organic passivation film to surround the display area, a water absorption layer formed of the same material in the same process as that of the organic passivation film is formed within the groove-shaped through-hole, and the water absorption layer is not covered with the inorganic insulating film.
    Type: Application
    Filed: November 16, 2023
    Publication date: March 14, 2024
    Inventors: Tomonori NISHINO, Masato SHIMURA, Tomokazu ISHIKAWA, Yuki KURAMOTO, Satoshi HASHIMOTO
  • Publication number: 20240085744
    Abstract: According to one embodiment, a liquid crystal display device includes a first area, second area, liquid crystal layer, and a plurality of pixels. Each subpixel includes an opening area including a first opening area and a second opening area. The pixels include a first pixel positioned in the first area and a second pixel positioned over a boundary of the first area and the second area. The opening area of the second pixel is smaller than the opening area of the first pixel when opening areas of subpixels of same color are compared. An each imaginary line showing the boundary of the first opening area and the second opening area is a same straight line.
    Type: Application
    Filed: November 21, 2023
    Publication date: March 14, 2024
    Applicant: Japan Display Inc.
    Inventors: Masato NAKAMURA, Daichi HOSOKAWA, Yuki KURAMOTO, Hideyuki TAKAHASHI
  • Patent number: 11906851
    Abstract: According to one embodiment, A display device includes a first substrate includes an inorganic insulating film, a first wiring formed above the inorganic insulating film, an organic insulating film located above the inorganic insulating film and the first wiring, and a driver electrically connected to the first wiring, a second substrate opposing the first substrate, and a sealant fixing the first substrate and the second substrate, wherein the sealant comprises a first seal portion formed along a first edge of the first substrate and a second seal portion which crosses the first seal portion, and the first seal portion has a first width, and the second seal portion has a second width, the first width being greater than the second width.
    Type: Grant
    Filed: April 20, 2023
    Date of Patent: February 20, 2024
    Assignee: JAPAN DISPLAY INC.
    Inventors: Taiki Makino, Tomokazu Ishikawa, Yuki Kuramoto
  • Patent number: 11860487
    Abstract: According to one embodiment, a liquid crystal display device includes a first area, second area, liquid crystal layer, and a plurality of pixels. Each subpixel includes an opening area including a first opening area and a second opening area. The pixels include a first pixel positioned in the first area and a second pixel positioned over a boundary of the first area and the second area. The opening area of the second pixel is smaller than the opening area of the first pixel when opening areas of subpixels of same color are compared. An each imaginary line showing the boundary of the first opening area and the second opening area is a same straight line.
    Type: Grant
    Filed: August 16, 2022
    Date of Patent: January 2, 2024
    Assignee: Japan Display Inc.
    Inventors: Masato Nakamura, Daichi Hosokawa, Yuki Kuramoto, Hideyuki Takahashi
  • Patent number: 11860483
    Abstract: In order to avoid generation of black unevenness caused by the water intrusion into a liquid crystal display device, there is to provide a liquid crystal display device including a display area and a terminal portion, in which a TFT substrate with an organic passivation film formed and an opposite substrate are adhered to each other by a seal portion and a liquid crystal is enclosed there, wherein in the seal portion of the TFT substrate, a groove-shaped through-hole is formed in the organic passivation film to surround the display area, a water absorption layer formed of the same material in the same process as that of the organic passivation film is formed within the groove-shaped through-hole, and the water absorption layer is not covered with the inorganic insulating film.
    Type: Grant
    Filed: April 3, 2023
    Date of Patent: January 2, 2024
    Assignee: Japan Display Inc.
    Inventors: Tomonori Nishino, Masato Shimura, Tomokazu Ishikawa, Yuki Kuramoto, Satoshi Hashimoto
  • Publication number: 20230273475
    Abstract: According to one embodiment, a display device comprises a display panel and a polarizing plate. The display panel comprises a display area, a non-display area surrounding the display area, and a light-shielding layer arranged in the display area and the non-display area. The polarizing plate is provided on a surface of the display panel, and including an end portion located in the non-display area. In this display device, the light-shielding layer opposite to the end portion of the polarizing plate is at least partially removed.
    Type: Application
    Filed: May 4, 2023
    Publication date: August 31, 2023
    Applicant: Japan Display Inc.
    Inventors: Tomokazu ISHIKAWA, Yuki KURAMOTO, Haruki YAMADA, Katsuhiro KATO
  • Publication number: 20230251529
    Abstract: According to one embodiment, A display device includes a first substrate includes an inorganic insulating film, a first wiring formed above the inorganic insulating film, an organic insulating film located above the inorganic insulating film and the first wiring, and a driver electrically connected to the first wiring, a second substrate opposing the first substrate, and a sealant fixing the first substrate and the second substrate, wherein the sealant comprises a first seal portion formed along a first edge of the first substrate and a second seal portion which crosses the first seal portion, and the first seal portion has a first width, and the second seal portion has a second width, the first width being greater than the second width.
    Type: Application
    Filed: April 20, 2023
    Publication date: August 10, 2023
    Applicant: Japan Display Inc.
    Inventors: Taiki MAKINO, Tomokazu ISHIKAWA, Yuki KURAMOTO
  • Publication number: 20230236459
    Abstract: In order to avoid generation of black unevenness caused by the water intrusion into a liquid crystal display device, there is to provide a liquid crystal display device including a display area and a terminal portion, in which a TFT substrate with an organic passivation film formed and an opposite substrate are adhered to each other by a seal portion and a liquid crystal is enclosed there, wherein in the seal portion of the TFT substrate, a groove-shaped through-hole is formed in the organic passivation film to surround the display area, a water absorption layer formed of the same material in the same process as that of the organic passivation film is formed within the groove-shaped through-hole, and the water absorption layer is not covered with the inorganic insulating film.
    Type: Application
    Filed: April 3, 2023
    Publication date: July 27, 2023
    Inventors: Tomonori NISHINO, Masato SHIMURA, Tomokazu ISHIKAWA, Yuki KURAMOTO, Satoshi HASHIMOTO
  • Patent number: 11681177
    Abstract: According to one embodiment, a display device comprises a display panel and a polarizing plate. The display panel comprises a display area, a non-display area surrounding the display area, and a light-shielding layer arranged in the display area and the non-display area. The polarizing plate is provided on a surface of the display panel, and including an end portion located in the non-display area. In this display device, the light-shielding layer opposite to the end portion of the polarizing plate is at least partially removed.
    Type: Grant
    Filed: May 3, 2022
    Date of Patent: June 20, 2023
    Assignee: Japan Display Inc.
    Inventors: Tomokazu Ishikawa, Yuki Kuramoto, Haruki Yamada, Katsuhiro Kato
  • Patent number: 11662628
    Abstract: According to one embodiment, A display device includes a first substrate includes an inorganic insulating film, a first wiring formed above the inorganic insulating film, an organic insulating film located above the inorganic insulating film and the first wiring, and a driver electrically connected to the first wiring, a second substrate opposing the first substrate, and a sealant fixing the first substrate and the second substrate, wherein the sealant comprises a first seal portion formed along a first edge of the first substrate and a second seal portion which crosses the first seal portion, and the first seal portion has a first width, and the second seal portion has a second width, the first width being greater than the second width.
    Type: Grant
    Filed: September 28, 2022
    Date of Patent: May 30, 2023
    Assignee: Japan Display Inc.
    Inventors: Taiki Makino, Tomokazu Ishikawa, Yuki Kuramoto
  • Patent number: 11644718
    Abstract: In order to avoid generation of black unevenness caused by the water intrusion into a liquid crystal display device, there is to provide a liquid crystal display device including a display area and a terminal portion, in which a TFT substrate with an organic passivation film formed and an opposite substrate are adhered to each other by a seal portion and a liquid crystal is enclosed there, wherein in the seal portion of the TFT substrate, a groove-shaped through-hole is formed in the organic passivation film to surround the display area, a water absorption layer formed of the same material in the same process as that of the organic passivation film is formed within the groove-shaped through-hole, and the water absorption layer is not covered with the inorganic insulating film.
    Type: Grant
    Filed: September 8, 2022
    Date of Patent: May 9, 2023
    Assignee: Japan Display Inc.
    Inventors: Tomonori Nishino, Masato Shimura, Tomokazu Ishikawa, Yuki Kuramoto, Satoshi Hashimoto
  • Publication number: 20230018273
    Abstract: According to one embodiment, A display device includes a first substrate includes an inorganic insulating film, a first wiring formed above the inorganic insulating film, an organic insulating film located above the inorganic insulating film and the first wiring, and a driver electrically connected to the first wiring, a second substrate opposing the first substrate, and a sealant fixing the first substrate and the second substrate, wherein the sealant comprises a first seal portion formed along a first edge of the first substrate and a second seal portion which crosses the first seal portion, and the first seal portion has a first width, and the second seal portion has a second width, the first width being greater than the second width.
    Type: Application
    Filed: September 28, 2022
    Publication date: January 19, 2023
    Applicant: Japan Display Inc.
    Inventors: Taiki MAKINO, Tomokazu ISHIKAWA, Yuki KURAMOTO
  • Publication number: 20230004034
    Abstract: In order to avoid generation of black unevenness caused by the water intrusion into a liquid crystal display device, there is to provide a liquid crystal display device including a display area and a terminal portion, in which a TFT substrate with an organic passivation film formed and an opposite substrate are adhered to each other by a seal portion and a liquid crystal is enclosed there, wherein in the seal portion of the TFT substrate, a groove-shaped through-hole is formed in the organic passivation film to surround the display area, a water absorption layer formed of the same material in the same process as that of the organic passivation film is formed within the groove-shaped through-hole, and the water absorption layer is not covered with the inorganic insulating film.
    Type: Application
    Filed: September 8, 2022
    Publication date: January 5, 2023
    Inventors: Tomonori NISHINO, Masato SHIMURA, Tomokazu ISHIKAWA, Yuki KURAMOTO, Satoshi HASHIMOTO
  • Publication number: 20220390801
    Abstract: According to one embodiment, a liquid crystal display device includes a first area, second area, liquid crystal layer, and a plurality of pixels. Each subpixel includes an opening area including a first opening area and a second opening area. The pixels include a first pixel positioned in the first area and a second pixel positioned over a boundary of the first area and the second area. The opening area of the second pixel is smaller than the opening area of the first pixel when opening areas of subpixels of same color are compared. An each imaginary line showing the boundary of the first opening area and the second opening area is a same straight line.
    Type: Application
    Filed: August 16, 2022
    Publication date: December 8, 2022
    Applicant: Japan Display Inc.
    Inventors: Masato NAKAMURA, Daichi HOSOKAWA, Yuki KURAMOTO, Hideyuki TAKAHASHI
  • Patent number: 11487166
    Abstract: According to one embodiment, A display device includes a first substrate includes an inorganic insulating film, a first wiring formed above the inorganic insulating film, an organic insulating film located above the inorganic insulating film and the first wiring, and a driver electrically connected to the first wiring, a second substrate opposing the first substrate, and a sealant fixing the first substrate and the second substrate, wherein the sealant comprises a first seal portion formed along a first edge of the first substrate and a second seal portion which crosses the first seal portion, and the first seal portion has a first width, and the second seal portion has a second width, the first width being greater than the second width.
    Type: Grant
    Filed: November 11, 2021
    Date of Patent: November 1, 2022
    Assignee: Japan Display Inc.
    Inventors: Taiki Makino, Tomokazu Ishikawa, Yuki Kuramoto
  • Patent number: 11467451
    Abstract: In order to avoid generation of black unevenness caused by the water intrusion into a liquid crystal display device, there is to provide a liquid crystal display device including a display area and a terminal portion, in which a TFT substrate with an organic passivation film formed and an opposite substrate are adhered to each other by a seal portion and a liquid crystal is enclosed there, wherein in the seal portion of the TFT substrate, a groove-shaped through-hole is formed in the organic passivation film to surround the display area, a water absorption layer formed of the same material in the same process as that of the organic passivation film is formed within the groove-shaped through-hole, and the water absorption layer is not covered with the inorganic insulating film.
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: October 11, 2022
    Assignee: Japan Display Inc.
    Inventors: Tomonori Nishino, Masato Shimura, Tomokazu Ishikawa, Yuki Kuramoto, Satoshi Hashimoto
  • Patent number: 11454849
    Abstract: According to one embodiment, a liquid crystal display device includes a first area, second area, liquid crystal layer, and a plurality of pixels. Each subpixel includes an opening area including a first opening area and a second opening area. The pixels include a first pixel positioned in the first area and a second pixel positioned over a boundary of the first area and the second area. The opening area of the second pixel is smaller than the opening area of the first pixel when opening areas of subpixels of same color are compared. An each imaginary line showing the boundary of the first opening area and the second opening area is a same straight line.
    Type: Grant
    Filed: June 11, 2021
    Date of Patent: September 27, 2022
    Assignee: JAPAN DISPLAY INC.
    Inventors: Masato Nakamura, Daichi Hosokawa, Yuki Kuramoto, Hideyuki Takahashi
  • Publication number: 20220260874
    Abstract: According to one embodiment, a display device comprises a display panel and a polarizing plate. The display panel comprises a display area, a non-display area surrounding the display area, and a light-shielding layer arranged in the display area and the non-display area. The polarizing plate is provided on a surface of the display panel, and including an end portion located in the non-display area. In this display device, the light-shielding layer opposite to the end portion of the polarizing plate is at least partially removed.
    Type: Application
    Filed: May 3, 2022
    Publication date: August 18, 2022
    Applicant: Japan Display Inc.
    Inventors: Tomokazu ISHIKAWA, Yuki KURAMOTO, Haruki YAMADA, Katsuhiro KATO
  • Patent number: 11353736
    Abstract: According to one embodiment, a display device comprises a display panel and a polarizing plate. The display panel comprises a display area, a non-display area surrounding the display area, and a light-shielding layer arranged in the display area and the non-display area. The polarizing plate is provided on a surface of the display panel, and including an end portion located in the non-display area. In this display device, the light-shielding layer opposite to the end portion of the polarizing plate is at least partially removed.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: June 7, 2022
    Assignee: Japan Display Inc.
    Inventors: Tomokazu Ishikawa, Yuki Kuramoto, Haruki Yamada, Katsuhiro Kato
  • Publication number: 20220091451
    Abstract: In order to avoid generation of black unevenness caused by the water intrusion into a liquid crystal display device, there is to provide a liquid crystal display device including a display area and a terminal portion, in which a TFT substrate with an organic passivation film formed and an opposite substrate are adhered to each other by a seal portion and a liquid crystal is enclosed there, wherein in the seal portion of the TFT substrate, a groove-shaped through-hole is formed in the organic passivation film to surround the display area, a water absorption layer formed of the same material in the same process as that of the organic passivation film is formed within the groove-shaped through-hole, and the water absorption layer is not covered with the inorganic insulating film.
    Type: Application
    Filed: November 30, 2021
    Publication date: March 24, 2022
    Inventors: Tomonori NISHINO, Masato SHIMURA, Tomokazu ISHIKAWA, Yuki KURAMOTO, Satoshi HASHIMOTO