Patents by Inventor Emi Higano

Emi Higano 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: 11894618
    Abstract: An antenna device includes a strip conductor layer, a radiation conductor layer continuous from the strip conductor layer, a ground conductor layer facing the strip conductor layer and the radiation conductor layer, a liquid crystal layer between the strip conductor layer and the ground conductor layer, and the radiation conductor layer and the ground conductor layer, and an alignment film between the strip conductor layer and the liquid crystal layer, and the radiation conductor layer and the liquid crystal layer. The alignment film includes a first region overlapping the strip conductor layer and a second region overlapping the radiation conductor layer, and the alignment state of liquid crystal molecules of the liquid crystal layer in the first region is different from the alignment state of liquid crystal molecules of the liquid crystal layer in the second region.
    Type: Grant
    Filed: September 14, 2021
    Date of Patent: February 6, 2024
    Assignee: Japan Display Inc.
    Inventors: Daiichi Suzuki, Mitsutaka Okita, Emi Higano
  • Patent number: 11516375
    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: Grant
    Filed: September 15, 2021
    Date of Patent: November 29, 2022
    Assignee: Japan Display Inc.
    Inventors: Tetsuya Kojima, Mitsutaka Okita, Daiichi Suzuki, Emi Higano, Shigesumi Araki
  • Publication number: 20210408681
    Abstract: An antenna device includes a strip conductor layer, a radiation conductor layer continuous from the strip conductor layer, a ground conductor layer facing the strip conductor layer and the radiation conductor layer, a liquid crystal layer between the strip conductor layer and the ground conductor layer, and the radiation conductor layer and the ground conductor layer, and an alignment film between the strip conductor layer and the liquid crystal layer, and the radiation conductor layer and the liquid crystal layer. The alignment film includes a first region overlapping the strip conductor layer and a second region overlapping the radiation conductor layer, and the alignment state of liquid crystal molecules of the liquid crystal layer in the first region is different from the alignment state of liquid crystal molecules of the liquid crystal layer in the second region.
    Type: Application
    Filed: September 14, 2021
    Publication date: December 30, 2021
    Applicant: Japan Display Inc.
    Inventors: Daiichi SUZUKI, Mitsutaka OKITA, Emi HIGANO
  • 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
  • Publication number: 20210208444
    Abstract: An electrooptic apparatus includes: a flexible first substrate having a first front surface; a liquid crystal layer (electrooptic layer) formed above the first front surface of the first substrate; a transistor element between the first substrate and the liquid crystal layer; a first wiring being closer to the first front surface and electrically connected to the transistor element; a first organic film between the first substrate and the first wiring; and a first inorganic insulating film between the transistor element and the first substrate and on the first front surface of the first substrate. The first substrate further includes: a first portion overlapping a display region and the insulating film; and a second portion not overlapping the insulating film 11 and including a bending region. The first wiring overlaps the first and second portions, and a thickness of the second portion is smaller than a thickness of the first portion.
    Type: Application
    Filed: March 22, 2021
    Publication date: July 8, 2021
    Applicant: Japan Display Inc.
    Inventors: Shinichiro OKA, Yosuke HYODO, Toshiyuki HIGANO, Emi HIGANO
  • Patent number: 11029550
    Abstract: According to one embodiment, an electro-optical device comprises a flexible first substrate and a flexible second substrate which include an electro-optical area, a drive area in the first substrate with terminals formed in the drive area, an external drive circuit connected to the terminals, conductive lines extending from the terminals to the electro-optical area side, and a first resin film overlapping the conductive lines. Further, a gap is formed between the first resin film and the second substrate in planar view.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: June 8, 2021
    Assignee: Japan Display Inc.
    Inventors: Genki Asozu, Toshiyuki Higano, Emi Higano
  • 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: 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: 10502993
    Abstract: According to one embodiment, a display device comprises a light source, a light guide, a flexible display panel, and a first polarizer. The light guide includes first and second surfaces and a side surface. The flexible display panel includes a display area on which the light from the first surface is incident. The first polarizer is disposed between the light guide and the display panel. The display panel is opposed to the first surface. An end portion of the display panel is bent toward the second surface along the side surface. The first polarizer faces the side surface.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: December 10, 2019
    Assignee: JAPAN DISPLAY INC.
    Inventors: Emi Higano, Toshiyuki Higano
  • Patent number: 10367048
    Abstract: According to one embodiment, a display device includes a first insulating substrate, an emitting layer, a protective film, a resin base, a first adhesive layer, and a second adhesive layer. The first insulating substrate includes a display area and a drive area. The emitting layer is in the display area. The protective film covers the emitting layer. The resin base is at a position upper than the protective film. The first adhesive layer is under the resin base, in the display area and the drive area. The second adhesive layer is on the resin base. The second adhesive layer covers the drive area and an end portion of the resin base. The resin base is located between the first adhesive layer and the second adhesive layer in the drive area.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: July 30, 2019
    Assignee: Japan Display Inc.
    Inventors: Toshiyuki Higano, Emi Higano
  • 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: 10234730
    Abstract: According to one embodiment, a liquid crystal display device includes an array substrate, a counter substrate, an adhesive layer, a liquid crystal layer, a frame portion, and first and second barrier members. The first barrier member includes a first wall portion having a frame shape and provided on a surface of the array substrate opposing the counter substrate, and first pillar portions arranged spaced apart from each other and each having opposite end faces abutting against the first wall portion and the counter substrate. The second barrier member includes a second wall portion having a frame shape and provided on a surface of the counter substrate opposing the array substrate, and second pillar portions arranged spaced apart from each other and each having opposite end faces abutting against the second wall portion and the array substrate.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: March 19, 2019
    Assignee: Japan Display Inc.
    Inventors: Emi Higano, Toshiyuki Higano
  • Publication number: 20190072811
    Abstract: According to one embodiment, a display device comprises a light source, a light guide, a flexible display panel, and a first polarizer. The light guide includes first and second surfaces and a side surface. The flexible display panel includes a display area on which the light from the first surface is incident. The first polarizer is disposed between the light guide and the display panel. The display panel is opposed to the first surface. An end portion of the display panel is bent toward the second surface along the side surface. The first polarizer faces the side surface.
    Type: Application
    Filed: September 5, 2018
    Publication date: March 7, 2019
    Applicant: JAPAN DISPLAY INC.
    Inventors: Emi HIGANO, Toshiyuki Higano
  • Publication number: 20190041678
    Abstract: According to one embodiment, an electro-optical device comprises a flexible first substrate and a flexible second substrate which include an electro-optical area, a drive area in the first substrate with terminals formed in the drive area, an external drive circuit connected to the terminals, conductive lines extending from the terminals to the electro-optical area side, and a first resin film overlapping the conductive lines. Further, a gap is formed between the first resin film and the second substrate in planar view.
    Type: Application
    Filed: August 3, 2018
    Publication date: February 7, 2019
    Applicant: Japan Display Inc.
    Inventors: Genki ASOZU, Toshiyuki HIGANO, Emi HIGANO
  • 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: 20180314104
    Abstract: According to one embodiment, a display device comprises a first substrate, a flexible second substrates, an adhesive layer, a terminal, an electrode and a conductive structure. The terminal is in the first substrate and is connected to a drive circuit. The electrode is provided in the second substrate. The conductive structure connects the drive circuit and the electrode. The conductive structure comprises a first protrusion provided in the first surface in an area overlapping the adhesive layer, a first conductive film covering the first protrusion, a second conductive film facing the first conductive film, and a conductive member in the adhesive layer.
    Type: Application
    Filed: April 6, 2018
    Publication date: November 1, 2018
    Applicant: Japan Display Inc.
    Inventors: Toshiyuki HIGANO, Emi Higano
  • Patent number: 10108041
    Abstract: There is provided a liquid crystal display device that a high quality image with suppressed display unevenness can be obtained. A liquid crystal display device includes a first metal electrode, a black matrix disposed at regular spacings, and a liquid crystal. The first metal electrode is disposed to overlap the black matrix when seen perpendicularly from above, and a second metal electrode is disposed at a place at which the first metal is not disposed at a position at which the second metal electrode overlaps the black matrix between different color sub pixels.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: October 23, 2018
    Assignee: Japan Display Inc.
    Inventors: Toshiyuki Higano, Emi Higano
  • 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