Patents by Inventor Masaru NAKAKOMI

Masaru NAKAKOMI 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: 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: 20230019616
    Abstract: In a plan view, a spacer member is arranged at a position overlapping with a first line portion of a second pixel electrode. The second pixel electrode has a second connecting portion that connects the first line portion and the second line portion arranged next to the first line portion. The second connecting portion of the pixel electrode is arranged between a region where the first line portion of the second pixel electrode overlaps with the spacer member and one end portion of the first line portion of the second pixel electrode.
    Type: Application
    Filed: July 13, 2022
    Publication date: January 19, 2023
    Applicant: Japan Display Inc.
    Inventors: Tomokazu ISHIKAWA, Masateru MORIMOTO, Masaru NAKAKOMI
  • Patent number: 11543705
    Abstract: According to one embodiment, a display device comprises a first substrate, a second substrate opposed to the first substrate and including a first organic film, a first convex portion extending in a first direction, a second convex portion extending in a second direction intersecting the first direction, and a third convex portion aligned with the first convex portion in the second direction and extending in the first direction, and a sealing member located in a second area around a first area in which an image is displayed, wherein the first convex portion, the second convex portion and the third convex portion are located between the first organic film and the sealing member.
    Type: Grant
    Filed: November 17, 2020
    Date of Patent: January 3, 2023
    Assignee: JAPAN DISPLAY INC.
    Inventors: Tomokazu Ishikawa, Masaru Nakakomi
  • Publication number: 20220299830
    Abstract: According to one embodiment, a display device including a first substrate including a first insulating film and a second insulating film that includes a band-shaped first thick film portion, an island-shaped second thick film portion, a first contact hole penetrating the first thick film portion, and a second contact hole penetrating the second thick film portion, a first thickness of the first thick film portion and a second thickness of the second thick film portion are larger than a film thickness of the second insulating film between the first and second thick film portions, and a second substrate comprises a spacer overlapping the first thick film portion.
    Type: Application
    Filed: March 18, 2022
    Publication date: September 22, 2022
    Applicant: Japan Display Inc.
    Inventors: Masaru NAKAKOMI, Tomokazu ISHIKAWA
  • Publication number: 20220260879
    Abstract: According to one embodiment, a display device includes, a first inorganic insulating layer, a first metal layer, a wiring group, a first organic insulating layer formed above the first inorganic insulating layer, the first metal layer and the wiring group, a second inorganic insulating layer formed above the first organic insulating layer and includes an opening portion overlapping the first metal layer, and a first transparent conductive layer formed above the second inorganic insulating layer, overlapping the opening portion and electrically connected to the first metal layer. The first organic insulating layer includes a groove portion which exposes the first inorganic insulating layer between the opening portion and the wiring group.
    Type: Application
    Filed: May 6, 2022
    Publication date: August 18, 2022
    Applicant: Japan Display Inc.
    Inventors: Tomokazu ISHIKAWA, Masaru NAKAKOMI
  • Patent number: 11353757
    Abstract: According to one embodiment, a display device includes, a first inorganic insulating layer, a first metal layer, a wiring group, a first organic insulating layer formed above the first inorganic insulating layer, the first metal layer and the wiring group, a second inorganic insulating layer formed above the first organic insulating layer and includes an opening portion overlapping the first metal layer, and a first transparent conductive layer formed above the second inorganic insulating layer, overlapping the opening portion and electrically connected to the first metal layer. The first organic insulating layer includes a groove portion which exposes the first inorganic insulating layer between the opening portion and the wiring group.
    Type: Grant
    Filed: March 9, 2020
    Date of Patent: June 7, 2022
    Assignee: JAPAN DISPLAY INC.
    Inventors: Tomokazu Ishikawa, Masaru Nakakomi
  • 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
  • Publication number: 20220075228
    Abstract: According to one embodiment, a display device includes a first substrate, a second substrate, a through hole, and a facing area. The facing area includes a display area and a frame area. The second substrate includes a light-shielding layer and a colored layer. The light-shielding layer includes a first groove formed in a closed annular shape along the through hole and penetrating from the first substrate toward the second substrate. The colored layer is located in the first groove and is provided in an entire area of the first groove in a planar view.
    Type: Application
    Filed: November 17, 2021
    Publication date: March 10, 2022
    Applicant: Japan Display Inc.
    Inventors: Tomokazu ISHIKAWA, Masaru NAKAKOMI, Masashi SHISHIKURA
  • Publication number: 20220075224
    Abstract: According to one embodiment, a liquid crystal display device includes a first substrate, a second substrate, a facing area, a liquid crystal layer, and a first spacer. The facing area includes a first area for displaying an image, a second area, and a frame-shaped frame area. The second substrate includes a light-shielding layer. The second area is an area having higher transparency than transparency of the first area. The liquid crystal layer is located in the second area, the frame area, and the first area. The first spacer is located in the second area and is provided on the first substrate or the second substrate.
    Type: Application
    Filed: November 19, 2021
    Publication date: March 10, 2022
    Applicant: Japan Display Inc.
    Inventors: Tomokazu ISHIKAWA, Masaru NAKAKOMI
  • Publication number: 20220075223
    Abstract: According to one embodiment, a display device includes a first substrate including a first area including a display area and a frame area, and a second area, a second substrate including a first end portion and a second end portion, and overlapping the first area, and a sealant that is located in the frame area. A width of the frame area between the first end portion and the display area is smaller than a width of the frame area between the second end portion and the display area. A width of the sealant between the first end portion and the display area is smaller than a width of the sealant between the second end portion and the display area.
    Type: Application
    Filed: November 19, 2021
    Publication date: March 10, 2022
    Applicant: Japan Display Inc.
    Inventors: Tomokazu ISHIKAWA, Masashi SHISHIKURA, 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: 20210165266
    Abstract: The purpose of the present invention is to supply a reference potential to a conductive film for shield formed on an outer major surface of the substrate without forming a voltage supply pad at the terminal area. An example of the concrete structure is: the liquid crystal display panel including a first substrate, on which wirings and pixels are formed, a first polarizing film adhered to the first substrate, a second substrate opposing to the first substrate, and a second polarizing plate adhered to the second substrate, the second substrate and the second polarizing plate being mutually adhered by a conductive adhesive, a back light including a metal component, the back light and the liquid crystal display panel being fixed by a conductive resin formed on a side surface of the metal component and a side surface of the liquid crystal display panel, the conductive resin electrically connecting with the conductive adhesive.
    Type: Application
    Filed: November 27, 2020
    Publication date: June 3, 2021
    Applicant: Japan Display Inc.
    Inventors: Masaru NAKAKOMI, Takeshi SATO
  • Publication number: 20210072576
    Abstract: According to one embodiment, a display device comprises a first substrate, a second substrate opposed to the first substrate and including a first organic film, a first convex portion extending in a first direction, a second convex portion extending in a second direction intersecting the first direction, and a third convex portion aligned with the first convex portion in the second direction and extending in the first direction, and a sealing member located in a second area around a first area in which an image is displayed, wherein the first convex portion, the second convex portion and the third convex portion are located between the first organic film and the sealing member.
    Type: Application
    Filed: November 17, 2020
    Publication date: March 11, 2021
    Applicant: Japan Display Inc.
    Inventors: Tomokazu ISHIKAWA, Masaru NAKAKOMI
  • 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: 10859878
    Abstract: According to one embodiment, a display device comprises a first substrate, a second substrate opposed to the first substrate and including a first organic film, a first convex portion extending in a first direction, a second convex portion extending in a second direction intersecting the first direction, and a third convex portion aligned with the first convex portion in the second direction and extending in the first direction, and a sealing member located in a second area around a first area in which an image is displayed, wherein the first convex portion, the second convex portion and the third convex portion are located between the first organic film and the sealing member.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: December 8, 2020
    Assignee: JAPAN DISPLAY INC.
    Inventors: Tomokazu Ishikawa, Masaru Nakakomi
  • 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: 20200292890
    Abstract: According to one embodiment, a display device includes, a first inorganic insulating layer, a first metal layer, a wiring group, a first organic insulating layer formed above the first inorganic insulating layer, the first metal layer and the wiring group, a second inorganic insulating layer formed above the first organic insulating layer and includes an opening portion overlapping the first metal layer, and a first transparent conductive layer formed above the second inorganic insulating layer, overlapping the opening portion and electrically connected to the first metal layer. The first organic insulating layer includes a groove portion which exposes the first inorganic insulating layer between the opening portion and the wiring group.
    Type: Application
    Filed: March 9, 2020
    Publication date: September 17, 2020
    Applicant: Japan Display Inc.
    Inventors: Tomokazu ISHIKAWA, Masaru NAKAKOMI
  • Publication number: 20200064665
    Abstract: According to one embodiment, a display device comprises a first substrate, a second substrate opposed to the first substrate and including a first organic film, a first convex portion extending in a first direction, a second convex portion extending in a second direction intersecting the first direction, and a third convex portion aligned with the first convex portion in the second direction and extending in the first direction, and a sealing member located in a second area around a first area in which an image is displayed, wherein the first convex portion, the second convex portion and the third convex portion are located between the first organic film and the sealing member.
    Type: Application
    Filed: August 27, 2019
    Publication date: February 27, 2020
    Applicant: Japan Display Inc.
    Inventors: Tomokazu ISHIKAWA, Masaru NAKAKOMI
  • 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: 10473987
    Abstract: A display device capable of preventing deterioration in display quality caused by ions in a liquid crystal layer particularly by taking a measure against positive and negative ions is provided. A display device includes: a display region; a peripheral region outside of the display region; a light shielding layer overlapped on the peripheral region; a voltage supply wiring provided in the peripheral region; and first and second electrodes provided in the peripheral region and connected to the voltage supply wiring. The peripheral region includes first, second, third, and fourth regions. The first electrode is provided in any region among the first to fourth regions. The second electrode is provided in a region different from the region where the first electrode is formed among these regions. A polarity of a first voltage supplied to the first electrode is different from that of a second voltage supplied to the second electrode.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: November 12, 2019
    Assignee: Japan Display Inc.
    Inventor: Masaru Nakakomi