Patents by Inventor Hideki Shiina

Hideki Shiina 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: 11150522
    Abstract: A liquid crystal display device includes a first substrate, a second substrate, a liquid crystal sandwiched between the substrates, and a display region. A hole portion is formed in the display region. A first seal portion is formed to surround the display region. A second seal portion is formed to surround the hole portion. The first and the second seal portions seal the liquid crystal. The second seal portion has a first end portion on the liquid crystal side and a second end portion on the opposite side of the liquid crystal side. A sealing material is present in the first end portion. A sealing material is present in the second end portion. A wall-like spacer is formed between the first and the second end portions to surround the hole portion. The wall-like spacer defines the gap between the first and the second substrates.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: October 19, 2021
    Assignee: Japan Display Inc.
    Inventors: Junko Nagasawa, Hideki Shiina
  • Patent number: 11099438
    Abstract: A display portion of a display device includes a gate wiring formed of a first metal layer, a signal line formed of a second metal layer, a metal wiring formed of a third metal layer. A terminal portion of the display device includes a first metal portion formed of the second metal layer, and a second metal portion that is laminated on the first metal portion and formed of the third metal layer. The second metal portion covers an upper surface and a side surface of the first metal portion, and a peripheral portion of the second metal portion is covered by an organic insulating film, and the inside of the peripheral portion of the second metal portion is exposed via a first through hole formed in the organic insulating film.
    Type: Grant
    Filed: October 13, 2020
    Date of Patent: August 24, 2021
    Assignee: Japan Display Inc.
    Inventor: Hideki Shiina
  • Publication number: 20210240023
    Abstract: According to one embodiment, a display device includes a first drain electrode, a first insulating film which is organic, a first metal electrode in contact with the first drain electrode in a first through-hole of the first insulating film, a second insulating film which is organic, a first transparent electrode in contact with the first metal electrode in a second through-hole of the second insulating film and formed of a transparent conductive material, a third insulating film which is inorganic, a pixel electrode in contact with the first transparent electrode in a third through-hole of the third insulating film and a metal wire located between the first insulating film and the second insulating film and formed of a material identical to that of the first metal electrode.
    Type: Application
    Filed: April 19, 2021
    Publication date: August 5, 2021
    Applicant: Japan Display Inc.
    Inventor: Hideki Shiina
  • Publication number: 20210173274
    Abstract: A display device has a frame region in a displaying region. The frame region includes a first scan line, and a first signal line and a second signal line adjacent to each other. The first signal line has a first wide section, and the first signal line intersects the first scan line at the first wide section in plan view. The first scan line has a second wide section. The second signal line has a pair of third wide sections, and the second signal line intersects the second wide section of the first scan line at the pair of third wide sections in plan view. The first wide section of the first signal line is opposite to the second signal line between the pair of third wide sections without being opposite to the pair of third wide sections.
    Type: Application
    Filed: February 22, 2021
    Publication date: June 10, 2021
    Inventor: Hideki SHIINA
  • Patent number: 10996519
    Abstract: According to one embodiment, a display device includes a first drain electrode, a first insulating film which is organic, a first metal electrode in contact with the first drain electrode in a first through-hole of the first insulating film, a second insulating film which is organic, a first transparent electrode in contact with the first metal electrode in a second through-hole of the second insulating film and formed of a transparent conductive material, a third insulating film which is inorganic, a pixel electrode in contact with the first transparent electrode in a third through-hole of the third insulating film and a metal wire located between the first insulating film and the second insulating film and formed of a material identical to that of the first metal electrode.
    Type: Grant
    Filed: February 6, 2019
    Date of Patent: May 4, 2021
    Assignee: JAPAN DISPLAY INC.
    Inventor: Hideki Shiina
  • Publication number: 20210124195
    Abstract: A display device includes a first substrate having a pad, a second substrate having a shield conductive layer, and a conductor connected to the pad and the shield conductive layer. The first substrate includes a first wiring provided under the pad and the pad includes an organic insulation film provided so as to cover the first wiring and a transparent conductive film provided over the organic insulation film. The transparent conductive film includes a first transparent conductive film provided over the organic insulation film and a second transparent conductive film connected to the first transparent conductive film. The first transparent conductive film is provided so as to avoid an upper part of the first wiring in a plan view and the second transparent conductive film is provided so as to cover the first wiring and the first transparent conductive film in a plan view.
    Type: Application
    Filed: January 6, 2021
    Publication date: April 29, 2021
    Inventor: Hideki SHIINA
  • Publication number: 20210088826
    Abstract: A liquid crystal display device includes a first substrate, a second substrate, a liquid crystal sandwiched between the substrates, and a display region. A hole portion is formed in the display region. A first seal portion is formed to surround the display region. A second seal portion is formed to surround the hole portion. The first and the second seal portions seal the liquid crystal. The second seal portion has a first end portion on the liquid crystal side and a second end portion on the opposite side of the liquid crystal side. A sealing material is present in the first end portion. A sealing material is present in the second end portion. A wall-like spacer is formed between the first and the second end portions to surround the hole portion. The wall-like spacer defines the gap between the first and the second substrates.
    Type: Application
    Filed: November 20, 2020
    Publication date: March 25, 2021
    Inventors: Junko NAGASAWA, Hideki SHIINA
  • Publication number: 20210033902
    Abstract: A display portion of a display device includes a gate wiring formed of a first metal layer, a signal line formed of a second metal layer, a metal wiring formed of a third metal layer. A terminal portion of the display device includes a first metal portion formed of the second metal layer, and a second metal portion that is laminated on the first metal portion and formed of the third metal layer. The second metal portion covers an upper surface and a side surface of the first metal portion, and a peripheral portion of the second metal portion is covered by an organic insulating film, and the inside of the peripheral portion of the second metal portion is exposed via a first through hole formed in the organic insulating film.
    Type: Application
    Filed: October 13, 2020
    Publication date: February 4, 2021
    Inventor: Hideki SHIINA
  • Publication number: 20200409201
    Abstract: According to one embodiment, a display device includes a first substrate, a second substrate, and a connection member. The first substrate includes a pad portion. The second substrate includes a transparent conductive film located on an outer surface. The connection member electrically connects the pad portion and the transparent conductive film. The pad portion includes a second metal layer, a first organic insulating film having a first through hole penetrating to the second metal layer, a third metal layer being in contact with the second metal layer in the first through hole, and a second organic insulating film covering an end portion of the third metal layer and having a second through hole penetrating to the third metal layer.
    Type: Application
    Filed: September 15, 2020
    Publication date: December 31, 2020
    Applicant: Japan Display Inc.
    Inventor: Hideki Shiina
  • Patent number: 10877321
    Abstract: A liquid crystal display device includes a first substrate, a second substrate, a liquid crystal sandwiched between the substrates, and a display region. A hole portion is formed in the display region. A first seal portion is formed to surround the display region. A second seal portion is formed to surround the hole portion. The first and the second seal portions seal the liquid crystal. The second seal portion has a first end portion on the liquid crystal side and a second end portion on the opposite side of the liquid crystal side. A sealing material is present in the first end portion. A sealing material is present in the second end portion. A wall-like spacer is formed between the first and the second end portions to surround the hole portion. The wall-like spacer defines the gap between the first and the second substrates.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: December 29, 2020
    Assignee: Japan Display Inc.
    Inventors: Junko Nagasawa, Hideki Shiina
  • Publication number: 20200363670
    Abstract: According to one embodiment, a display device includes a switching element, a common electrode, an insulating film covering the common electrode, a first pixel electrode electrically connected to the switching element in a first contact hole penetrating the insulating film, and a transparent conductive film electrically connected to the common electrode in a second contact hole penetrating the insulating film. The first pixel electrode and the transparent conductive film are arranged in a first direction in a same layer. A size of the first contact hole and a size of the second contact hole are different from each other in planar view.
    Type: Application
    Filed: August 6, 2020
    Publication date: November 19, 2020
    Applicant: Japan Display Inc.
    Inventor: Hideki Shiina
  • Patent number: 10620489
    Abstract: According to one embodiment, a liquid crystal display device comprises first and second substrates, a sealing member, and a liquid crystal layer. The first substrate includes an image display area, a peripheral area, a common electrode, a scanning line, a signal line, a switching element, a pixel electrode, and first and second electrodes. At least a part of the first electrode is formed of a metal material and is closer to the liquid crystal layer than the scanning and signal lines. The first voltage is applied to the first electrode and the second voltage is applied to the second electrode. Ions in the liquid crystal layer are trapped by an electric field formed between the first and second electrodes.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: April 14, 2020
    Assignee: Japan Display Inc.
    Inventor: Hideki Shiina
  • Patent number: 10578936
    Abstract: The purpose is to realize a high definition liquid crystal display device having touch panel function. The concrete structure is: The first substrate comprising; a plurality of scanning lines and a plurality of video signal lines, a semiconductor layer, a pixel electrode, a common electrode formed in plural pixels in common, a through hole to connect the semiconductor layer and the pixel electrode, a plurality of common metal wirings, which are formed on the common electrode and formed along the video signal lines; wherein the common electrode has a slit extending in the same direction as the scanning line extends, a bridge wiring is formed over the common metal wiring interposed by an insulating film at the place where the common metal wiring and the slit cross to each other, the common metal wiring and the bridge wiring are electrically connected to the common electrode near the edges of the slit.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: March 3, 2020
    Assignee: Japan Display Inc.
    Inventor: Hideki Shiina
  • Publication number: 20200004074
    Abstract: A liquid crystal display device includes a first substrate, a second substrate, a liquid crystal sandwiched between the substrates, and a display region. A hole portion is formed in the display region. A first seal portion is formed to surround the display region. A second seal portion is formed to surround the hole portion. The first and the second seal portions seal the liquid crystal. The second seal portion has a first end portion on the liquid crystal side and a second end portion on the opposite side of the liquid crystal side. A sealing material is present in the first end portion. A sealing material is present in the second end portion. A wall-like spacer is formed between the first and the second end portions to surround the hole portion. The wall-like spacer defines the gap between the first and the second substrates.
    Type: Application
    Filed: September 11, 2019
    Publication date: January 2, 2020
    Inventors: Junko NAGASAWA, Hideki SHIINA
  • Patent number: 10495934
    Abstract: The purpose of the invention is to prevent the line shaped irregularity in brightness and to improve contrast. The representative structure is as follows. A liquid crystal display device comprising: a TFT substrate including a plural scan lines and a plural video signal lines, a counter substrate opposing to the TFT substrate, and a liquid crystal layer sandwiched between the TFT substrate and the counter substrate; wherein an interlayer insulating film is formed between the scan lines and the video signal lines, a groove like recess is formed in the interlayer insulating film superposing with the video signal line.
    Type: Grant
    Filed: April 18, 2018
    Date of Patent: December 3, 2019
    Assignee: Japan Display Inc.
    Inventor: Hideki Shiina
  • Patent number: 10451926
    Abstract: A liquid crystal display device includes a first substrate, a second substrate, a liquid crystal sandwiched between the substrates, and a display region. A hole portion is formed in the display region. A first seal portion is formed to surround the display region. A second seal portion is formed to surround the hole portion. The first and the second seal portions seal the liquid crystal. The second seal portion has a first end portion on the liquid crystal side and a second end portion on the opposite side of the liquid crystal side. A sealing material is present in the first end portion. A sealing material is present in the second end portion. A wall-like spacer is formed between the first and the second end portions to surround the hole portion. The wall-like spacer defines the gap between the first and the second substrates.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: October 22, 2019
    Assignee: Japan Display Inc.
    Inventors: Junko Nagasawa, Hideki Shiina
  • Patent number: 10437108
    Abstract: To improve the reliability of a liquid crystal display device, a liquid crystal display device includes a first substrate a second substrate opposing the first substrate, a liquid crystal layer arranged between the first and second substrates, and a sealing section arranged around the liquid crystal layer. The sealing section includes a member arranged around the liquid crystal layer and extending along an outer edge of the liquid crystal layer in a plan view and a sealing material arranged on both adjacent sides of the member and continuously surrounding a periphery of the liquid crystal layer in a plan view. Further, the first substrate has an oriented film formed on a back surface and a part of the sealing material overlaps a peripheral edge of the oriented film in a thickness direction on a side of the liquid crystal layer of the member.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: October 8, 2019
    Assignee: Japan Display Inc.
    Inventors: Masato Shimura, Tomoya Sugano, Masato Ai, Tomonori Nishino, Satoshi Hashimoto, Hideki Shiina
  • Publication number: 20190243173
    Abstract: According to one embodiment, a display device includes a first drain electrode, a first insulating film which is organic, a first metal electrode in contact with the first drain electrode in a first through-hole of the first insulating film, a second insulating film which is organic, a first transparent electrode in contact with the first metal electrode in a second through-hole of the second insulating film and formed of a transparent conductive material, a third insulating film which is inorganic, a pixel electrode in contact with the first transparent electrode in a third through-hole of the third insulating film and a metal wire located between the first insulating film and the second insulating film and formed of a material identical to that of the first metal electrode.
    Type: Application
    Filed: February 6, 2019
    Publication date: August 8, 2019
    Applicant: Japan Display Inc.
    Inventor: Hideki Shiina
  • Publication number: 20190064608
    Abstract: According to one embodiment, a liquid crystal display device comprises first and second substrates, a sealing member, and a liquid crystal layer. The first substrate includes an image display area, a peripheral area, a common electrode, a scanning line, a signal line, a switching element, a pixel electrode, and first and second electrodes. At least a part of the first electrode is formed of a metal material and is closer to the liquid crystal layer than the scanning and signal lines. The first voltage is applied to the first electrode and the second voltage is applied to the second electrode. Ions in the liquid crystal layer are trapped by an electric field formed between the first and second electrodes.
    Type: Application
    Filed: August 23, 2018
    Publication date: February 28, 2019
    Applicant: Japan Display Inc.
    Inventor: Hideki SHIINA
  • Publication number: 20190064561
    Abstract: The purpose is to realize a high definition liquid crystal display device having touch panel function. The concrete structure is: The first substrate comprising; a plurality of scanning lines and a plurality of video signal lines, a semiconductor layer, a pixel electrode, a common electrode formed in plural pixels in common, a through hole to connect the semiconductor layer and the pixel electrode, a plurality of common metal wirings, which are formed on the common electrode and formed along the video signal lines; wherein the common electrode has a slit extending in the same direction as the scanning line extends, a bridge wiring is formed over the common metal wiring interposed by an insulating film at the place where the common metal wiring and the slit cross to each other, the common metal wiring and the bridge wiring are electrically connected to the common electrode near the edges of the slit.
    Type: Application
    Filed: August 1, 2018
    Publication date: February 28, 2019
    Applicant: Japan Display Inc.
    Inventor: Hideki SHIINA