Patents by Inventor Shinichiro Oka

Shinichiro Oka 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: 11256144
    Abstract: A display device includes a flexible substrate including a first region including a display region, a second region including a curved region, and a third region including a terminal region; an electro-optical element located in the display region; and a resin layer continuously extending from the first region to the third region.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: February 22, 2022
    Assignee: Japan Display Inc.
    Inventors: Masumi Nishimura, Shinichiro Oka
  • Publication number: 20210397262
    Abstract: A display apparatus includes: a display panel; an enclosure enclosing the display panel; a cover member covering a front surface of the display panel; an actuator connected to the cover member and having a function of applying vibration to the cover member; and a viscous body arranged between the display panel and the cover member. The viscous body is bonded to the display panel and the cover member, and, when a periodic stress having a vibration frequency of ½ period per second is applied to the viscous body, a dynamic elastic modulus of the viscous body is equal to or lower than 1×10?3 of Young's modulus of the viscous body.
    Type: Application
    Filed: September 3, 2021
    Publication date: December 23, 2021
    Applicant: Japan Display Inc.
    Inventors: Shinichiro OKA, Michiaki SAKAMOTO
  • Patent number: 11187936
    Abstract: Regarding a flexible display apparatus, a technique capable of securing connection performance between the members in the thickness direction and reducing the change of the cell gap, and besides, achieving favorable optical property such as the improvement of the aperture ratio is provided. A display apparatus 1 includes: a first substrate SB1 having flexibility; a second substrate SB2 having flexibility; a liquid crystal layer LQ serving as an electrooptic layer; and a display area made of these components. The second substrate SB2 includes: a color filter (second color filter CF2) arranged in a region corresponding to an opening P1 of each pixel in the display area in a plan view; and a first light blocking film BM1 having an ultraviolet-light transmitting property and arranged in a region corresponding to a non-opening P2 between pixels.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: November 30, 2021
    Assignee: Japan Display Inc.
    Inventors: Shinichiro Oka, Yosuke Hyodo, Lu Jin, Yasushi Tomioka
  • Patent number: 11175514
    Abstract: A head mounted display includes a first display element and a second display element that emit light to a second portion. A first portion includes a first opening and a second opening separating from the first opening. The second portion includes a first optical element portion facing the first opening in a first direction and a second optical element portion facing the second opening in the first direction. Each of the first optical element portion and the second optical element portion of the second portion includes a reflection portion reflecting light emitted from the first display element or the second display element and a light-transmittance adjustment portion controlling a transmittance of external light travelling from the second portion toward the first portion on the basis of a signal that is output from a light-transmittance control circuit. The reflection portion is arranged between the light-transmittance adjustment portion and the first portion.
    Type: Grant
    Filed: October 8, 2020
    Date of Patent: November 16, 2021
    Assignee: Japan Display Inc.
    Inventors: Tomoki Nakamura, Shinichiro Oka
  • Patent number: 11119351
    Abstract: The display device includes: a first substrate; a second substrate; and a liquid crystal layer placed between the first substrate and the second substrate. The first substrate and the second substrate have a display area and a frame area around the display area. The frame area has a seal material placed between the first substrate and the second substrate. The second substrate has: a second resin substrate; in the display area, a first multilayer layer placed on a side of the second resin substrate facing the liquid crystal layer, the first multilayer layer including a first inorganic insulating film, a light shielding member, and an overcoat film; and in the frame area, a second multilayer layer placed on the side of the second resin substrate facing the liquid crystal layer, the second multilayer layer including the light shielding member and the overcoat film.
    Type: Grant
    Filed: January 14, 2021
    Date of Patent: September 14, 2021
    Assignee: Japan Display Inc.
    Inventors: Yosuke Hyodo, Toshiyuki Higano, Yoshiro Aoki, Shinichiro Oka
  • Patent number: 11099413
    Abstract: According to one embodiment, a display device includes a first basement, a first folding line and a second folding line. The first basement has a first area which is a display area including a display element, and a second area and a third area which are non-display areas and are adjacent to the first area. The first folding line is located at a border of the first area and the second area. The second folding line is located at a border of the first area and the third area. The first folding line extends in a first direction, and the second folding line extends in a second direction intersecting the first direction.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: August 24, 2021
    Assignee: Japan Display Inc.
    Inventors: Yoshiro Aoki, Toshiya Yamazaki, Kazunori Yamaguchi, Toshihiro Yanagi, Yoshitoshi Kida, Kazuhiro Nishiyama, Shinichiro Oka, Hiroyuki Kimura, Takashi Nakamura
  • 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
  • Publication number: 20210132434
    Abstract: The display device includes: a first substrate; a second substrate; and a liquid crystal layer placed between the first substrate and the second substrate. The first substrate and the second substrate have a display area and a frame area around the display area. The frame area has a seal material placed between the first substrate and the second substrate. The second substrate has: a second resin substrate; in the display area, a first multilayer layer placed on a side of the second resin substrate facing the liquid crystal layer, the first multilayer layer including a first inorganic insulating film, a light shielding member, and an overcoat film; and in the frame area, a second multilayer layer placed on the side of the second resin substrate facing the liquid crystal layer, the second multilayer layer including the light shielding member and the overcoat film.
    Type: Application
    Filed: January 14, 2021
    Publication date: May 6, 2021
    Applicant: Japan Display Inc.
    Inventors: Yosuke HYODO, Toshiyuki HIGANO, Yoshiro AOKI, Shinichiro OKA
  • Publication number: 20210091336
    Abstract: A display device includes a flexible substrate including a first region including a display region, a second region including a curved region, and a third region including a terminal region; an electro-optical element located in the display region; and a resin layer continuously extending from the first region to the third region.
    Type: Application
    Filed: December 8, 2020
    Publication date: March 25, 2021
    Inventors: Masumi NISHIMURA, Shinichiro OKA
  • Publication number: 20210080770
    Abstract: The purpose of the present invention is to suppress a displacement between the TFT substrate and the counter substrate in lateral direction in the liquid crystal display device. An example of the concrete structure is: a liquid crystal display device comprising: a TFT substrate, in which pixel electrodes are formed, a counter electrode, in which a black matrix is formed, the TFT substrate and the counter substrate being adhered by a sealing material, a liquid crystal being sealed inside from the sealing material, wherein a spacer is formed on either one of the TFT substrate or the counter substrate, a polymer pole is formed around the spacer and in contact with the spacer, a space between the TFT substrate and the counter substrate is maintained by the spacer.
    Type: Application
    Filed: August 31, 2020
    Publication date: March 18, 2021
    Inventors: Lu JIN, Shinichiro OKA, Yosuke HYODO
  • Publication number: 20210026144
    Abstract: A head mounted display includes a first display element and a second display element that emit light to a second portion. A first portion includes a first opening and a second opening separating from the first opening. The second portion includes a first optical element portion facing the first opening in a first direction and a second optical element portion facing the second opening in the first direction. Each of the first optical element portion and the second optical element portion of the second portion includes a reflection portion reflecting light emitted from the first display element or the second display element and a light-transmittance adjustment portion controlling a transmittance of external light travelling from the second portion toward the first portion on the basis of a signal that is output from a light-transmittance control circuit. The reflection portion is arranged between the light-transmittance adjustment portion and the first portion.
    Type: Application
    Filed: October 8, 2020
    Publication date: January 28, 2021
    Inventors: Tomoki NAKAMURA, Shinichiro OKA
  • Patent number: 10901272
    Abstract: According to an aspect, a liquid crystal display device includes: a first substrate provided with a first electrode portion that includes a plurality of strip electrodes arranged in a first direction and that is configured to generate a transverse electric field in the first direction; a liquid crystal layer in which liquid crystal molecules are oriented in the first direction when the transverse electric field is not generated; a second substrate facing the first substrate across the liquid crystal layer; and an electrode provided at the second substrate.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: January 26, 2021
    Assignee: Japan Display Inc.
    Inventors: Masaaki Kabe, Kojiro Ikeda, Shinichiro Oka
  • Patent number: 10892440
    Abstract: A display device includes a flexible substrate including a first region including a display region, a second region including a curved region, and a third region including a terminal region; an electro-optical element located in the display region; and a resin layer continuously extending from the first region to the third region.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: January 12, 2021
    Assignee: Japan Display Inc.
    Inventors: Masumi Nishimura, Shinichiro Oka
  • Publication number: 20200348561
    Abstract: Regarding a flexible display apparatus, a technique capable of securing connection performance between the members in the thickness direction and reducing the change of the cell gap, and besides, achieving favorable optical property such as the improvement of the aperture ratio is provided. A display apparatus 1 includes: a first substrate SB1 having flexibility; a second substrate SB2 having flexibility; a liquid crystal layer LQ serving as an electrooptic layer; and a display area made of these components. The second substrate SB2 includes: a color filter (second color filter CF2) arranged in a region corresponding to an opening P1 of each pixel in the display area in a plan view; and a first light blocking film BM1 having an ultraviolet-light transmitting property and arranged in a region corresponding to a non-opening P2 between pixels.
    Type: Application
    Filed: July 22, 2020
    Publication date: November 5, 2020
    Applicant: Japan Display Inc.
    Inventors: Shinichiro OKA, Yosuke Hyodo, Lu Jin, Yasushi Tomioka
  • Patent number: 10714507
    Abstract: A semiconductor device includes a first resin layer, one or more first wirings above the first resin layer, a second resin layer above the first wiring, the second resin layer including a first opening part, a transistor above the second resin layer, the transistor including a semiconductor layer, a gate insulation layer, and a gate electrode layer; and a second wiring above the second resin layer, the second wiring being connected to the transistor and connected to the first wiring via the first opening part.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: July 14, 2020
    Assignee: Japan Display Inc.
    Inventors: Toshinari Sasaki, Shinichiro Oka, Takuma Nishinohara
  • Patent number: 10698279
    Abstract: A display device including a first resin substrate having flexibility, a second resin substrate having flexibility facing the first resin substrate, an electro-optical layer between the first resin substrate and the second resin substrate, a semiconductor layer included in a transistor between the first resin substrate and the electro-optical layer, a plurality of wiring layers between the first resin substrate and the electro-optical layer, the plurality of wiring layers including a metal layer below the semiconductor layer, a first inorganic insulating layer between the metal layer and the first resin substrate, and a second inorganic insulating layer arranged in the second resin substrate between the electro-optical layer and the second resin substrate, a thickness of the second inorganic insulating layer being different from a thickness of the first inorganic insulating layer.
    Type: Grant
    Filed: May 21, 2018
    Date of Patent: June 30, 2020
    Assignee: Japan Display Inc.
    Inventors: Yosuke Hyodo, Shinichiro Oka, Lu Jin
  • Patent number: 10634941
    Abstract: A display device includes a first flexible substrate on which a display region and a peripheral region located along a periphery of the display region are arranged; a connection terminal provided in the peripheral region, the connection terminal being connected with an integrated circuit; and a first insulating film in contact with the first flexible substrate. The first insulating film is present in the display region, and the first insulating film is not present between the connection terminal and the first flexible substrate.
    Type: Grant
    Filed: August 26, 2019
    Date of Patent: April 28, 2020
    Assignee: Japan Display Inc.
    Inventors: Yosuke Hyodo, Shinichiro Oka, Lu Jin
  • Patent number: 10598976
    Abstract: A liquid crystal display device includes a first substrate, a second substrate facing the first substrate, a liquid crystal layer between the first substrate and the second substrate, the liquid crystal layer being enclosed by a sealing member, a first protrusion in one of the first substrate and the second substrate in a region inner to the sealing member, the first protrusion protruding toward the other of the first substrate and the second substrate, and a resin component bonding the other of the first substrate and the second substrate and the first protrusion to each other.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: March 24, 2020
    Assignee: Japan Display Inc.
    Inventors: Lu Jin, Shinichiro Oka, Yosuke Hyodo
  • Publication number: 20200050062
    Abstract: According to an aspect, a liquid crystal display device includes: a first substrate provided with a first electrode portion that includes a plurality of strip electrodes arranged in a first direction and that is configured to generate a transverse electric field in the first direction; a liquid crystal layer in which liquid crystal molecules are oriented in the first direction when the transverse electric field is not generated; a second substrate facing the first substrate across the liquid crystal layer; and an electrode provided at the second substrate.
    Type: Application
    Filed: October 16, 2019
    Publication date: February 13, 2020
    Applicant: Japan Display Inc.
    Inventors: Masaaki KABE, Kojiro Ikeda, Shinichiro Oka
  • Patent number: 10551694
    Abstract: According to one embodiment, a liquid crystal device includes a first substrate including a first electrode and a second electrode, a second substrate, a liquid crystal layer, and the second electrode is located on a side of the liquid crystal layer with respect to the first electrode and includes a first opening, the first opening is formed into a polygonal shape including a base portion and at least one projecting portion projecting from the base portion along a first direction, a width of the base portion along the first direction is greater than a width of the projecting portion along the first direction, and the liquid crystal layer exhibits transparency while no voltage being applied and scattering property while voltage being applied.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: February 4, 2020
    Assignee: Japan Display Inc.
    Inventors: Kojiro Ikeda, Masaaki Kabe, Shinichiro Oka, Chikyu Nakaoka