Patents by Inventor Hitomi HASEGAWA

Hitomi HASEGAWA 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: 11877100
    Abstract: According to one embodiment, a display device including a first substrate including an organic film, a first recess and a second recess formed in the organic film, and a first projection having the organic film, a second substrate, and a sealing member located in a second area around a first area, and bonding the first substrate and the second substrate together, wherein the first substrate includes a mounting portion, the first recess and the second recess extend in the second area, a first leading end portion of the first recess is separated from a second leading end portion of the second recess, and the first projection, the first recess and the second recess overlap the sealing member.
    Type: Grant
    Filed: December 14, 2022
    Date of Patent: January 16, 2024
    Assignee: JAPAN DISPLAY INC.
    Inventors: Tomokazu Ishikawa, Hitomi Hasegawa, Masaru Nakakomi
  • Patent number: 11675226
    Abstract: According to one embodiment, a display device includes a first substrate and a second substrate. The first substrate includes a first area including a display portion, a second area adjacent to the first area, and an organic film. The second substrate has a substrate end along a boundary between the first area and the second area, and overlaps the first area. The first substrate includes an alignment film located in the display portion, terminals located in the second area and connected to a signal source, and a first groove formed in the organic film and located between the substrate end of the second substrate and the terminals in the second area. The terminals are arranged in a first direction. The first groove extends in the first direction along the terminals.
    Type: Grant
    Filed: April 13, 2022
    Date of Patent: June 13, 2023
    Assignee: JAPAN DISPLAY INC.
    Inventors: Tomokazu Ishikawa, Hitomi Hasegawa, Masashi Shishikura
  • Publication number: 20230115561
    Abstract: According to one embodiment, a display device including a first substrate including an organic film, a first recess and a second recess formed in the organic film, and a first projection having the organic film, a second substrate, and a sealing member located in a second area around a first area, and bonding the first substrate and the second substrate together, wherein the first substrate includes a mounting portion, the first recess and the second recess extend in the second area, a first leading end portion of the first recess is separated from a second leading end portion of the second recess, and the first projection, the first recess and the second recess overlap the sealing member.
    Type: Application
    Filed: December 14, 2022
    Publication date: April 13, 2023
    Applicant: Japan Display Inc.
    Inventors: Tomokazu ISHIKAWA, Hitomi HASEGAWA, Masaru NAKAKOMI
  • Patent number: 11570408
    Abstract: According to one embodiment, a display device including a first substrate including an organic film, a first recess and a second recess formed in the organic film, and a first projection having the organic film, a second substrate, and a sealing member located in a second area around a first area, and bonding the first substrate and the second substrate together, wherein the first substrate includes a mounting portion, the first recess and the second recess extend in the second area, a first leading end portion of the first recess is separated from a second leading end portion of the second recess, and the first projection, the first recess and the second recess overlap the sealing member.
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: January 31, 2023
    Assignee: JAPAN DISPLAY INC.
    Inventors: Tomokazu Ishikawa, Hitomi Hasegawa, Masaru Nakakomi
  • Publication number: 20220299819
    Abstract: According to one embodiment, a display device includes a first area, a second area, a boundary including a linear first boundary parallel and a curved second boundary and surrounding the first area, and a light-shielding layer including a first light-shielding portion located in the second area. An end portion of the first light-shielding portion on the first area side includes a linear first end portion located on the first boundary, a curved second end portion located on the second boundary in a first round area, and a stepwise third end portion which extends such that the third end portion is bent in a second round area.
    Type: Application
    Filed: June 8, 2022
    Publication date: September 22, 2022
    Applicant: Japan Display Inc.
    Inventors: Tomokazu ISHIKAWA, Hitomi HASEGAWA
  • Publication number: 20220236607
    Abstract: According to one embodiment, a display device includes a first substrate and a second substrate. The first substrate includes a first area including a display portion, a second area adjacent to the first area, and an organic film. The second substrate has a substrate end along a boundary between the first area and the second area, and overlaps the first area. The first substrate includes an alignment film located in the display portion, terminals located in the second area and connected to a signal source, and a first groove formed in the organic film and located between the substrate end of the second substrate and the terminals in the second area. The terminals are arranged in a first direction. The first groove extends in the first direction along the terminals.
    Type: Application
    Filed: April 13, 2022
    Publication date: July 28, 2022
    Applicant: Japan Display Inc.
    Inventors: Tomokazu ISHIKAWA, Hitomi HASEGAWA, Masashi SHISHIKURA
  • Patent number: 11378835
    Abstract: According to one embodiment, a display device includes a first area, a second area, a boundary including a linear first boundary parallel and a curved second boundary and surrounding the first area, and a light-shielding layer including a first light-shielding portion located in the second area. An end portion of the first light-shielding portion on the first area side includes a linear first end portion located on the first boundary, a curved second end portion located on the second boundary in a first round area, and a stepwise third end portion which extends such that the third end portion is bent in a second round area.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: July 5, 2022
    Assignee: JAPAN DISPLAY INC.
    Inventors: Tomokazu Ishikawa, Hitomi Hasegawa
  • Patent number: 11333916
    Abstract: According to one embodiment, a display device includes a first substrate and a second substrate. The first substrate includes a first area including a display portion, a second area adjacent to the first area, and an organic film. The second substrate has a substrate end along a boundary between the first area and the second area, and overlaps the first area. The first substrate includes an alignment film located in the display portion, terminals located in the second area and connected to a signal source, and a first groove formed in the organic film and located between the substrate end of the second substrate and the terminals in the second area. The terminals are arranged in a first direction. The first groove extends in the first direction along the terminals.
    Type: Grant
    Filed: February 1, 2021
    Date of Patent: May 17, 2022
    Assignee: JAPAN DISPLAY INC.
    Inventors: Tomokazu Ishikawa, Hitomi Hasegawa, Masashi Shishikura
  • Publication number: 20220094890
    Abstract: According to one embodiment, a display device including a first substrate including an organic film, a first recess and a second recess formed in the organic film, and a first projection having the organic film, a second substrate, and a sealing member located in a second area around a first area, and bonding the first substrate and the second substrate together, wherein the first substrate includes a mounting portion, the first recess and the second recess extend in the second area, a first leading end portion of the first recess is separated from a second leading end portion of the second recess, and the first projection, the first recess and the second recess overlap the sealing member.
    Type: Application
    Filed: November 30, 2021
    Publication date: March 24, 2022
    Applicant: Japan Display Inc.
    Inventors: Tomokazu ISHIKAWA, Hitomi HASEGAWA, Masaru NAKAKOMI
  • Patent number: 11218672
    Abstract: According to one embodiment, a display device including a first substrate including an organic film, a first recess and a second recess formed in the organic film, and a first projection having the organic film, a second substrate, and a sealing member located in a second area around a first area, and bonding the first substrate and the second substrate together, wherein the first substrate includes a mounting portion, the first recess and the second recess extend in the second area, a first leading end portion of the first recess is separated from a second leading end portion of the second recess, and the first projection, the first recess and the second recess overlap the sealing member.
    Type: Grant
    Filed: November 18, 2020
    Date of Patent: January 4, 2022
    Assignee: JAPAN DISPLAY INC.
    Inventors: Tomokazu Ishikawa, Hitomi Hasegawa, Masaru Nakakomi
  • Publication number: 20210149240
    Abstract: According to one embodiment, a display device includes a first substrate and a second substrate. The first substrate includes a first area including a display portion, a second area adjacent to the first area, and an organic film. The second substrate has a substrate end along a boundary between the first area and the second area, and overlaps the first area. The first substrate includes an alignment film located in the display portion, terminals located in the second area and connected to a signal source, and a first groove formed in the organic film and located between the substrate end of the second substrate and the terminals in the second area. The terminals are arranged in a first direction. The first groove extends in the first direction along the terminals.
    Type: Application
    Filed: February 1, 2021
    Publication date: May 20, 2021
    Applicant: Japan Display Inc.
    Inventors: Tomokazu ISHIKAWA, Hitomi HASEGAWA, Masashi SHISHIKURA
  • Publication number: 20210076011
    Abstract: According to one embodiment, a display device including a first substrate including an organic film, a first recess and a second recess formed in the organic film, and a first projection having the organic film, a second substrate, and a sealing member located in a second area around a first area, and bonding the first substrate and the second substrate together, wherein the first substrate includes a mounting portion, the first recess and the second recess extend in the second area, a first leading end portion of the first recess is separated from a second leading end portion of the second recess, and the first projection, the first recess and the second recess overlap the sealing member.
    Type: Application
    Filed: November 18, 2020
    Publication date: March 11, 2021
    Applicant: Japan Display Inc.
    Inventors: Tomokazu ISHIKAWA, Hitomi HASEGAWA, Masaru NAKAKOMI
  • Patent number: 10942384
    Abstract: According to one embodiment, a display device includes a first substrate and a second substrate. The first substrate includes a first area including a display portion, a second area adjacent to the first area, and an organic film. The second substrate has a substrate end along a boundary between the first area and the second area, and overlaps the first area. The first substrate includes an alignment film located in the display portion, terminals located in the second area and connected to a signal source, and a first groove formed in the organic film and located between the substrate end of the second substrate and the terminals in the second area. The terminals are arranged in a first direction. The first groove extends in the first direction along the terminals.
    Type: Grant
    Filed: August 12, 2019
    Date of Patent: March 9, 2021
    Assignee: JAPAN DISPLAY INC.
    Inventors: Tomokazu Ishikawa, Hitomi Hasegawa, Masashi Shishikura
  • Patent number: 10863151
    Abstract: According to one embodiment, a display device including a first substrate including an organic film, a first recess and a second recess formed in the organic film, and a first projection having the organic film, a second substrate, and a sealing member located in a second area around a first area, and bonding the first substrate and the second substrate together, wherein the first substrate includes a mounting portion, the first recess and the second recess extend in the second area, a first leading end portion of the first recess is separated from a second leading end portion of the second recess, and the first projection, the first recess and the second recess overlap the sealing member.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: December 8, 2020
    Assignee: JAPAN DISPLAY INC.
    Inventors: Tomokazu Ishikawa, Hitomi Hasegawa, Masaru Nakakomi
  • Publication number: 20200064682
    Abstract: According to one embodiment, a display device includes a first area, a second area, a boundary including a linear first boundary parallel and a curved second boundary and surrounding the first area, and a light-shielding layer including a first light-shielding portion located in the second area. An end portion of the first light-shielding portion on the first area side includes a linear first end portion located on the first boundary, a curved second end portion located on the second boundary in a first round area, and a stepwise third end portion which extends such that the third end portion is bent in a second round area.
    Type: Application
    Filed: August 23, 2019
    Publication date: February 27, 2020
    Applicant: Japan Display Inc.
    Inventors: Tomokazu ISHIKAWA, Hitomi HASEGAWA
  • Publication number: 20200064703
    Abstract: According to one embodiment, a display device includes a first substrate and a second substrate. The first substrate includes a first area including a display portion, a second area adjacent to the first area, and an organic film. The second substrate has a substrate end along a boundary between the first area and the second area, and overlaps the first area. The first substrate includes an alignment film located in the display portion, terminals located in the second area and connected to a signal source, and a first groove formed of the organic film and located between the substrate end of the second substrate and the terminals in the second area. The terminals are arranged in a first direction. The first groove extends in the first direction along the terminals.
    Type: Application
    Filed: August 12, 2019
    Publication date: February 27, 2020
    Applicant: Japan Display Inc.
    Inventors: Tomokazu ISHIKAWA, Hitomi HASEGAWA, Masashi SHISHIKURA
  • Publication number: 20190373226
    Abstract: According to one embodiment, a display device including a first substrate including an organic film, a first recess and a second recess formed in the organic film, and a first projection having the organic film, a second substrate, and a sealing member located in a second area around a first area, and bonding the first substrate and the second substrate together, wherein the first substrate includes a mounting portion, the first recess and the second recess extend in the second area, a first leading end portion of the first recess is separated from a second leading end portion of the second recess, and the first projection, the first recess and the second recess overlap the sealing member.
    Type: Application
    Filed: May 31, 2019
    Publication date: December 5, 2019
    Applicant: Japan Display Inc.
    Inventors: Tomokazu Ishikawa, Hitomi Hasegawa, Masaru Nakakomi
  • Patent number: 10209576
    Abstract: An object of this invention is to increase the number of liquid crystal display panels obtained from a mother substrate. There is provided a liquid crystal display device including a TFT substrate and a counter substrate bonded together by a seal portion formed along the periphery of the counter substrate, the TFT substrate having a terminal area formed in a portion thereof not opposed to the counter substrate. The TFT substrate has a bank-like organic passivation film formed along the edge of the terminal area. A stepped part is formed on the organic passivation film. The film thickness of the organic passivation film on the edge side of the stepped part is greater than the film thickness inside the stepped part.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: February 19, 2019
    Assignee: Japan Display Inc.
    Inventors: Tomokazu Ishikawa, Yuki Kuramoto, Hitomi Hasegawa
  • Publication number: 20170269404
    Abstract: An object of this invention is to increase the number of liquid crystal display panels obtained from a mother substrate. There is provided a liquid crystal display device including a TFT substrate and a counter substrate bonded together by a seal portion formed along the periphery of the counter substrate, the TFT substrate having a terminal area formed in a portion thereof not opposed to the counter substrate. The TFT substrate has a bank-like organic passivation film formed along the edge of the terminal area. A stepped part is formed on the organic passivation film. The film thickness of the organic passivation film on the edge side of the stepped part is greater than the film thickness inside the stepped part.
    Type: Application
    Filed: March 6, 2017
    Publication date: September 21, 2017
    Inventors: Tomokazu ISHIKAWA, Yuki KURAMOTO, Hitomi HASEGAWA
  • Patent number: 9341906
    Abstract: In one embodiment, a first substrate includes a gate line extending in a first direction, a source line extending in a second direction orthogonally crossing the first direction, a pixel electrode including a main pixel electrode extending in the second direction, and a first alignment film covering the pixel electrode. A second substrate includes a common electrode having a pair of main common electrodes arranged on both sides sandwiching the main pixel electrode and a second alignment film covering the common electrode. A liquid crystal layer is held between the first alignment film and the second alignment film and includes liquid crystal molecules. The liquid crystal layer is formed of materials having negative dielectric constant anisotropy, and the liquid crystal molecules are initially aligned substantially in parallel with the first direction when electric field is not impressed between the pixel electrode and the common electrode.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: May 17, 2016
    Assignee: Japan Display Inc.
    Inventors: Hitomi Hasegawa, Nobuko Fukuoka