Patents by Inventor Masaya Tamaki

Masaya Tamaki 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).

  • Publication number: 20240113266
    Abstract: A display device includes a cavity member including a display surface and a plurality of cavities in the display surface, and a plurality of light emitters each located in a corresponding cavity of the plurality of cavities. When each of the plurality of light emitters has a displacement ?Pn of a reference position from a predetermined arrangement position on a bottom surface of the corresponding cavity of the plurality of cavities, where n is an integer greater than or equal to 2 and ?Pn is a scalar quantity, the displacement ?Pn has an average less than or equal to a predetermined value.
    Type: Application
    Filed: April 4, 2022
    Publication date: April 4, 2024
    Inventor: Masaya TAMAKI
  • Patent number: 11914237
    Abstract: According to one embodiment, a display device includes a driver, a first pixel circuit disposed apart from the driver in plan view but electrically connected to the driver, a second pixel circuit separated further from the driver than the first pixel circuit in plan view but electrically connected to the driver, a first pixel electrode overlapping the driver in plan view, a second pixel electrode overlapping the first pixel circuit in plan view, a first relay line electrically connecting the first pixel circuit and the first pixel electrode to each other, and a second relay line electrically connecting the second pixel circuit and the second pixel electrode to each other.
    Type: Grant
    Filed: February 23, 2022
    Date of Patent: February 27, 2024
    Assignee: Japan Display Inc.
    Inventors: Masaya Tamaki, Akihiko Saitoh
  • Publication number: 20240012280
    Abstract: A display device (1) includes a light emitter located on a first light-transmissive substrate, a second light-transmissive substrate facing the first light-transmissive substrate, a first light-shielding layer located on the first light-transmissive substrate and surrounding the light emitter, a second light-shielding layer located on the second light-transmissive substrate and surrounding a first portion facing the first light-shielding layer, a first light output section between the first light-shielding layer and the first portion and switchable between a transmissive state and a scattering state, and a second light output section between the second light-shielding layer and a second portion located on the first light-transmissive substrate and facing the second light-shielding layer. The second light output section is switchable between the transmissive state and the scattering state.
    Type: Application
    Filed: August 2, 2021
    Publication date: January 11, 2024
    Inventor: Masaya TAMAKI
  • Publication number: 20230335542
    Abstract: A display device includes a cavity structure including a display surface and a cavity in the display surface, and a light emitter in the cavity. The cavity includes a bottom surface and a side wall. The side wall is conductive or semiconductive. A height of the side wall is greater than or equal to three times a height of the light emitter.
    Type: Application
    Filed: September 2, 2021
    Publication date: October 19, 2023
    Inventor: Masaya TAMAKI
  • Publication number: 20230326908
    Abstract: A display device includes a cavity structure and a plurality of pixel units. The cavity structure includes a display surface and a plurality of cavities in the display surface. Each pixel unit of the plurality of pixel units includes a first light emitter and a second light emitter located in a corresponding cavity of the plurality of cavities. The first light emitter and the second light emitter are arranged in a same pattern in each cavity of the plurality of cavities. The each pixel unit of the plurality of pixel units includes a redundant structure configured to cause one of the first light emitter and the second light emitter to be driven to emit light. The first light emitter and the second light emitter are different in that they are driven according to the each pixel unit.
    Type: Application
    Filed: August 2, 2021
    Publication date: October 12, 2023
    Inventor: Masaya TAMAKI
  • Publication number: 20230324745
    Abstract: According to one embodiment, a display device includes a driver, a pixel circuit disposed to be apart from the driver in a plan view and to be electrically connected to the driver, a first pixel electrode disposed to overlap the pixel circuit in a plan view and to be electrically connected to the pixel circuit, a second pixel electrode disposed to overlap the driver in a plan view and to be closer to an outer edge of a display area than the first pixel electrode, and a relay line disposed between the pixel circuit and the first pixel electrode and between the driver and the second pixel electrode, the relay line electrically connecting the first pixel electrode and the second pixel electrode.
    Type: Application
    Filed: May 30, 2023
    Publication date: October 12, 2023
    Inventor: Masaya TAMAKI
  • Publication number: 20230307595
    Abstract: A display device includes a first substrate, a second substrate, a light emitter, a first transparent member, and a second transparent member. The second substrate is on the first substrate. The second substrate includes a through-hole extending through the second substrate in a direction in which the second substrate is placed on the first substrate. The light emitter includes an upper surface and a side surface. The light emitter is mounted on a portion of the first substrate exposed by the through-hole. The first transparent member is in the through-hole. The first transparent member seals at least the side surface of the light emitter. The second transparent member is on the first transparent member in the through-hole. The second transparent member has a lower refractive index and a greater thickness than the first transparent member.
    Type: Application
    Filed: August 2, 2021
    Publication date: September 28, 2023
    Inventor: Masaya TAMAKI
  • Patent number: 11747681
    Abstract: According to one embodiment, a liquid crystal display comprising a first substrate, a second substrate opposed the first substrate, a liquid crystal layer between the first substrate and the second substrate, a light-shielding layer including a first light-shield formed along a first direction and a second light-shield formed along a second direction and crossing the first light-shield, and a spacer which maintains a gap between the first substrate and the second substrate, the spacer overlapping a crossing region where the first light-shield and the second light-shield cross each other and including an exposed region outside the light-shielding layer in a planar view.
    Type: Grant
    Filed: July 5, 2022
    Date of Patent: September 5, 2023
    Assignee: Japan Display Inc.
    Inventor: Masaya Tamaki
  • Publication number: 20230275182
    Abstract: A display device includes a cavity structure and a light emitter. The cavity structure includes a third surface of a light guide as an image display surface, and a through-hole as a cavity in the third surface. The light emitter is in the through-hole. The third surface includes a light reflective surface in a portion other than the through-hole.
    Type: Application
    Filed: June 3, 2021
    Publication date: August 31, 2023
    Inventor: Masaya TAMAKI
  • Patent number: 11703725
    Abstract: According to one embodiment, a display device includes a driver, a pixel circuit disposed to be apart from the driver in a plan view and to be electrically connected to the driver, a first pixel electrode disposed to overlap the pixel circuit in a plan view and to be electrically connected to the pixel circuit, a second pixel electrode disposed to overlap the driver in a plan view and to be closer to an outer edge of a display area than the first pixel electrode, and a relay line disposed between the pixel circuit and the first pixel electrode and between the driver and the second pixel electrode, the relay line electrically connecting the first pixel electrode and the second pixel electrode.
    Type: Grant
    Filed: February 28, 2022
    Date of Patent: July 18, 2023
    Assignee: Japan Display Inc.
    Inventor: Masaya Tamaki
  • Publication number: 20230215996
    Abstract: A light-emitting device includes a component-mounting body including a first surface including a recess, and a light emitter mounted in the recess. The component-mounting body allows at least part of light emitted from the light emitter to be reflected from an inner peripheral surface of the recess at least twice.
    Type: Application
    Filed: May 10, 2021
    Publication date: July 6, 2023
    Inventor: Masaya TAMAKI
  • Publication number: 20220342249
    Abstract: According to one embodiment, a liquid crystal display comprising a first substrate, a second substrate opposed the first substrate, a liquid crystal layer between the first substrate and the second substrate, a light-shielding layer including a first light-shield formed along a first direction and a second light-shield formed along a second direction and crossing the first light-shield, and a spacer which maintains a gap between the first substrate and the second substrate, the spacer overlapping a crossing region where the first light-shield and the second light-shield cross each other and including an exposed region outside the light-shielding layer in a planar view.
    Type: Application
    Filed: July 5, 2022
    Publication date: October 27, 2022
    Inventor: Masaya TAMAKI
  • Publication number: 20220310029
    Abstract: A sensor-equipped display device is provided and includes display panel including first and second substrates, common electrode, and polarizer; backlight unit which emits light toward display panel, including light guide opposed to polarizer and light source which emits light toward light guide; conductive member arranged at back side of display panel and opposed to polarizer; controller; first flexible printed circuit; and second flexible printed circuit, wherein first flexible printed circuit is connected to display panel, second flexible printed circuit is connected to back side of first flexible printed circuit, common electrode is connected to controller via first flexible printed circuit, second flexible printed circuit comprises first branch portion and second branch portion, first branch portion is connected to light source, and conductive member is connected to controller via second branch portion of second flexible printed circuit and first flexible printed circuit.
    Type: Application
    Filed: June 16, 2022
    Publication date: September 29, 2022
    Inventors: Kazuyuki KOBAYASHI, Hayato KURASAWA, Hiroshi MIZUHASHI, Masaya TAMAKI, Takeo KOITO, Koji NOGUCHI
  • Patent number: 11443721
    Abstract: A display device includes: sub-pixels each including a memory block including memories; memory selection line groups each including memory selection lines electrically coupled to the memory blocks in the sub-pixels that belong to the corresponding row; a memory selection circuit configured to concurrently output memory selection signals to the memory selection line groups; a potential line; a conduction switch provided for at least one memory in the memory block on a one-to-one basis; and an operating-memory conduction circuit configured to output, to the conduction switch, an operation signal for determining whether to electrically couple or uncouple the potential line and the corresponding one memory. Each memory is capable of storing sub-pixel data therein when being coupled to the potential line. Each sub-pixel displays an image based on the sub-pixel data stored in one memory in the sub-pixel according to the memory selection line supplied with the memory selection signal.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: September 13, 2022
    Assignee: Japan Display Inc.
    Inventors: Masaya Tamaki, Yutaka Mitsuzawa, Takayuki Nakao, Yutaka Ozawa
  • Patent number: 11409167
    Abstract: According to one embodiment, a liquid crystal display comprising a first substrate, a second substrate opposed the first substrate, a liquid crystal layer between the first substrate and the second substrate, a light-shielding layer including a first light-shield formed along a first direction and a second light-shield formed along a second direction and crossing the first light-shield, and a spacer which maintains a gap between the first substrate and the second substrate, the spacer overlapping a crossing region where the first light-shield and the second light-shield cross each other and including an exposed region outside the light-shielding layer in a planar view.
    Type: Grant
    Filed: May 7, 2021
    Date of Patent: August 9, 2022
    Assignee: Japan Display Inc.
    Inventor: Masaya Tamaki
  • Publication number: 20220209085
    Abstract: A light emitter mounting board for improving light extraction efficiency includes an insulating substrate, an electrode layer, a resin layer, a coating layer, and a reflective electrode. The resin layer is located on the electrode layer and has a through-hole portion extending in a thickness direction. The coating layer covers a surface of the resin layer and an inner peripheral surface of the through-hole portion. The coating layer includes an in-hole portion covering the inner peripheral surface and having a lateral thickness gradually increasing from the surface of the resin layer toward the electrode layer. The reflective electrode extends at least on a surface of the in-hole portion of the coating layer and on an exposed portion of a surface of the electrode layer.
    Type: Application
    Filed: April 20, 2020
    Publication date: June 30, 2022
    Inventor: Masaya TAMAKI
  • Patent number: 11373611
    Abstract: A sensor-equipped display device is provided and includes display panel including first and second substrates, common electrode, and polarizer; backlight unit which emits light toward display panel, including light guide opposed to polarizer and light source which emits light toward light guide; conductive member arranged at back side of display panel and opposed to polarizer; controller; first flexible printed circuit; and second flexible printed circuit, wherein first flexible printed circuit is connected to display panel, second flexible printed circuit is connected to back side of first flexible printed circuit, common electrode is connected to controller via first flexible printed circuit, second flexible printed circuit comprises first branch portion and second branch portion, first branch portion is connected to light source, and conductive member is connected to controller via second branch portion of second flexible printed circuit and first flexible printed circuit.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: June 28, 2022
    Assignee: Japan Display Inc.
    Inventors: Kazuyuki Kobayashi, Hayato Kurasawa, Hiroshi Mizuhashi, Masaya Tamaki, Takeo Koito, Koji Noguchi
  • Publication number: 20220179256
    Abstract: According to one embodiment, a display device includes a driver, a pixel circuit disposed to be apart from the driver in a plan view and to be electrically connected to the driver, a first pixel electrode disposed to overlap the pixel circuit in a plan view and to be electrically connected to the pixel circuit, a second pixel electrode disposed to overlap the driver in a plan view and to be closer to an outer edge of a display area than the first pixel electrode, and a relay line disposed between the pixel circuit and the first pixel electrode and between the driver and the second pixel electrode, the relay line electrically connecting the first pixel electrode and the second pixel electrode.
    Type: Application
    Filed: February 28, 2022
    Publication date: June 9, 2022
    Inventor: Masaya TAMAKI
  • Publication number: 20220179252
    Abstract: According to one embodiment, a display device includes a driver, a first pixel circuit disposed apart from the driver in plan view but electrically connected to the driver, a second pixel circuit separated further from the driver than the first pixel circuit in plan view but electrically connected to the driver, a first pixel electrode overlapping the driver in plan view, a second pixel electrode overlapping the first pixel circuit in plan view, a first relay line electrically connecting the first pixel circuit and the first pixel electrode to each other, and a second relay line electrically connecting the second pixel circuit and the second pixel electrode to each other.
    Type: Application
    Filed: February 23, 2022
    Publication date: June 9, 2022
    Inventors: Masaya TAMAKI, Akihiko SAITOH
  • Patent number: 11333911
    Abstract: According to one embodiment, a display device includes a driver, a first pixel circuit disposed apart from the driver in plan view but electrically connected to the driver, a second pixel circuit separated further from the driver than the first pixel circuit in plan view but electrically connected to the driver, a first pixel electrode overlapping the driver in plan view, a second pixel electrode overlapping the first pixel circuit in plan view, a first relay line electrically connecting the first pixel circuit and the first pixel electrode to each other, and a second relay line electrically connecting the second pixel circuit and the second pixel electrode to each other.
    Type: Grant
    Filed: November 6, 2020
    Date of Patent: May 17, 2022
    Assignee: Japan Display Inc.
    Inventors: Masaya Tamaki, Akihiko Saitoh