Patents by Inventor Kentaro Okuyama

Kentaro Okuyama 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: 20230418097
    Abstract: A display device includes an array substrate, a counter substrate, and a liquid crystal layer between the array substrate and the counter substrate. The array substrate includes signal lines, scan lines, a grid-shaped organic insulating layer covering over the scan lines and the signal lines, pixel electrodes, and a first orientation film covering the pixel electrodes. A portion of each pixel electrode is provided above a slant surface of the organic insulating layer and overlaps the slant surface. The counter substrate includes a common electrode overlapping the pixel electrodes, an insulating protective film covering the common electrode, and a second orientation film covering the protective film and the common electrode. A region overlapping an opening surrounded by the scan lines and the signal lines has a non-overlapping region of the protective film where the common electrode and the second orientation film are directly stacked without interposing the protective film therebetween.
    Type: Application
    Filed: June 16, 2023
    Publication date: December 28, 2023
    Inventor: Kentaro OKUYAMA
  • Publication number: 20230410760
    Abstract: According to one embodiment, an electronic apparatus includes a display panel including a display area, a camera opposed to the display area of the display panel, and a controller that controls drive of the display panel and drive of the camera, the controller compares a position of an image of an eye of a user displayed in the display area and a position of the camera, and moves, in a case where difference is present between the position of the image of the eye of the user and the position of the camera, an image of the user such that the position of the image of the eye of the user is superposed on the position of the camera.
    Type: Application
    Filed: June 21, 2023
    Publication date: December 21, 2023
    Applicant: Japan Display Inc.
    Inventors: Kentaro OKUYAMA, Chiharu KABURAGI
  • Patent number: 11846854
    Abstract: According to one embodiment, a display device including a first substrate including a first pixel and a second pixel, a second substrate, a liquid crystal layer containing polymer and liquid crystal molecules, and a light emitting element, wherein the second pixel is located between the light emitting element and the first pixel, the first substrate includes a switching element including a semiconductor layer arranged in the first pixel, a pixel electrode, and a first light shielding portion arranged in the second pixel and being adjacent to the semiconductor layer, the first light shielding portion is located between the semiconductor layer and the light emitting element in planar view and located on a side closer to the first pixel than a center of the second pixel.
    Type: Grant
    Filed: August 16, 2021
    Date of Patent: December 19, 2023
    Assignee: Japan Display Inc.
    Inventors: Kentaro Okuyama, Yoshihide Ohue, Hiroki Sugiyama, Tomoyuki Tada
  • Patent number: 11835830
    Abstract: A display device according to an aspect includes: an array substrate including a plurality of first light-transmitting electrodes each disposed in a corresponding one of pixels; a counter substrate including positions that overlap the first light-transmitting electrodes in a plan view and are provided with a second light-transmitting electrode; a liquid crystal layer including polymer-dispersed liquid crystals filled between the array substrate and the counter substrate; and at least one light emitter configured to emit light toward a side surface of the counter substrate. The array substrate includes, in each of the pixels, a third light-transmitting electrode and a conductive metal layer. The third light-transmitting electrode at least partially overlaps the first light-transmitting electrode in the plan view with an inorganic insulating layer interposed therebetween, and the conductive metal layer is stacked on the third light-transmitting electrode.
    Type: Grant
    Filed: April 22, 2022
    Date of Patent: December 5, 2023
    Assignee: Japan Display Inc.
    Inventors: Hiroki Sugiyama, Yoshihide Ohue, Manabu Mizuno, Kentaro Okuyama
  • Publication number: 20230367056
    Abstract: According to one embodiment, a display device includes a first transparent substrate, a second transparent substrate, a liquid crystal layer, a third transparent substrate having a first side surface, a second side surface, and an inner surface, a transparent layer arranged on the inner surface, and light emitting elements. The transparent layer includes a band-shaped portion extending from the first side surface toward the second side surface and a frame-shaped portion formed in a frame shape surrounding the band-shaped portion. The band-shaped portion is separated from the frame-shaped portion. A width of the band-shaped portion on a first side surface side is larger than a width of the band-shaped portion on a second side surface side.
    Type: Application
    Filed: July 19, 2023
    Publication date: November 16, 2023
    Inventors: Tenfu NAKAMURA, Kentaro OKUYAMA, Kojiro IKEDA
  • Publication number: 20230359087
    Abstract: According to one embodiment, a display device includes a first substrate, a second substrate, a liquid crystal layer, a first light guide element and a light-emitting element. The liquid crystal layer contains stringy polymers and liquid crystal molecules. The first light guide element includes a third transparent substrate including a side surface and a main surface, and a transparent layer disposed on the main surface and having a refractive index lower than that of the third transparent substrate. The light-emitting element opposes the side surface, and the third transparent substrate is adhered to the second transparent substrate while interposing the transparent layer therebetween. The light-emitting element is disposed on the second transparent substrate.
    Type: Application
    Filed: July 13, 2023
    Publication date: November 9, 2023
    Applicant: Japan Display Inc.
    Inventors: Kojiro IKEDA, Tenfu NAKAMURA, Kentaro OKUYAMA, Zhengyi GOU, Hisanori KAWAKAMI
  • Publication number: 20230359096
    Abstract: According to one embodiment, a display device including a liquid crystal layer containing strip-like polymers and liquid crystal molecules, a third transparent substrate, and a transparent layer disposed on the third transparent substrate and having a refractive index lower than that of the third transparent substrate, wherein the transparent layer includes strip portions which include first and second end portions, and a middle portion, the first end portion has a first width greater than a width of the middle portion, the second end portion has a second width greater than the width of the middle portion, and first wiring lines overlap the strip portions, respectively and extend in a same direction.
    Type: Application
    Filed: July 20, 2023
    Publication date: November 9, 2023
    Inventors: Tenfu NAKAMURA, Kentaro OKUYAMA, Kojiro IKEDA
  • Patent number: 11809049
    Abstract: According to one embodiment, a display device includes a first substrate including a pixel electrode, a second substrate including a common electrode, a liquid crystal layer located between the first substrate and the second substrate and containing polymer and liquid crystal molecules, and a light emitting element opposed to an end surface of the second substrate, the common electrode being separated from the pixel electrode by a first distance, at a first position, the common electrode being separated from the pixel electrode by a second distance, at a second position more separated from the light emitting element than the first position, the second distance being smaller than the first distance.
    Type: Grant
    Filed: February 7, 2023
    Date of Patent: November 7, 2023
    Assignee: Japan Display Inc.
    Inventors: Tenfu Nakamura, Kojiro Ikeda, Kentaro Okuyama
  • Publication number: 20230350243
    Abstract: According to one embodiment, a display device includes a first substrate, a second substrate, a sealant formed bonding the first substrate with the second substrate, a liquid crystal layer surrounded by the sealant, and a light emitting module. The sealant includes a first portion, a second portion opposed to the first portion with the liquid crystal layer sandwiched therebetween, an inlet formed in the second portion, and a filling material filled in the inlet. The liquid crystal layer is arranged over a display area where an image is displayed, a first area between the display area and the first portion, and a second area between the display area and the second portion, in plan view. A first width of the first area is larger than a width of the second area.
    Type: Application
    Filed: July 12, 2023
    Publication date: November 2, 2023
    Inventors: Tatsunori MURAMOTO, Kentaro KAWAI, Yoshihide OHUE, Kentaro OKUYAMA, Tenfu NAKAMURA, Koji KITAMURA
  • Patent number: 11789303
    Abstract: A display device includes a display region, a peripheral region around the display region, a sealing portion provided in the peripheral region to seal a liquid crystal layer, and a liquid crystal supply portion provided at a part of the sealing portion and interconnecting an outside of the sealing portion and the display region. The peripheral region includes a first peripheral region which is provided between the display region and the sealing portion and from which an insulating film is removed and a second peripheral region which is provided between the display region and the sealing portion and in which the insulating film covering a circuit is formed. A light blocking film arranged so as to straddle the first and second peripheral regions and extending linearly in an extending direction of a boundary between the first and second peripheral regions is formed on a substrate.
    Type: Grant
    Filed: May 18, 2022
    Date of Patent: October 17, 2023
    Assignee: Japan Display Inc.
    Inventors: Koji Kitamura, Yoshihide Ohue, Kentaro Okuyama, Hiroya Morimoto, Masato Kesho
  • Publication number: 20230324750
    Abstract: A display device includes: an array substrate; a counter substrate; a liquid crystal layer between the array substrate and the counter substrate; and a light source disposed so as to emit light into a side surface of the array substrate or a side surface of the counter substrate. The array substrate includes: signal lines arranged in a first direction with spaces interposed between the signal lines; scan lines arranged in a second direction with spaces interposed therebetween; a switching element coupled to a corresponding one of the scan lines and a corresponding one of the signal lines; an organic insulating layer that covers at least the switching element; and a metal layer provided on the upper side of the organic insulating layer so as to overlap the organic insulating layer. A positional misalignment portion of each signal line does not overlap a positional misalignment portion of the metal layer.
    Type: Application
    Filed: April 5, 2023
    Publication date: October 12, 2023
    Inventors: Yoshihide OHUE, Yuuji OOMORI, Koji KITAMURA, Kentaro OKUYAMA
  • Publication number: 20230324751
    Abstract: A display device includes: an array substrate; a counter substrate; a liquid crystal layer between the array substrate and the counter substrate; spacers regulating a distance between the array substrate and the counter substrate; and a light source. The array substrate includes: signal lines arranged in a first direction; scan lines arranged in a second direction; switching elements each of which is coupled to a corresponding scan line and a corresponding signal line; and an organic insulating layer covering at least the switching elements. An area surrounded by the scan lines and the signal lines has a second area having a thickness less than that of the organic insulating layer in a first area overlapping the switching elements, the scan lines, and the signal lines in plan view. The spacers arranged in the first area have a thickness less than that of the organic insulating layer in the first area.
    Type: Application
    Filed: April 6, 2023
    Publication date: October 12, 2023
    Inventors: Yoshihide OHUE, Kentaro OKUYAMA, Hiroki SUGIYAMA, Yuuji OOMORI, Koji KITAMURA
  • Patent number: 11782306
    Abstract: According to an aspect, a display device includes: a first light-transmitting substrate; a second light-transmitting substrate disposed so as to face the first light-transmitting substrate; a liquid crystal layer comprising polymer dispersed liquid crystals between the first light-transmitting substrate and the second light-transmitting substrate; and a multilayered film on an outer surface or surfaces of at least one of the first light-transmitting substrate and the second light-transmitting substrate, the multilayered film being configured to reflect light from the first light-transmitting substrate or the second light-transmitting substrate, and absorb light from outside the first light-transmitting substrate or the second light-transmitting substrate.
    Type: Grant
    Filed: July 8, 2020
    Date of Patent: October 10, 2023
    Assignee: Japan Display Inc.
    Inventors: Hiroki Sugiyama, Kentaro Okuyama, Manabu Mizuno
  • Publication number: 20230314887
    Abstract: A display device includes a liquid crystal layer between a first substrate and a second substrate. The first substrate includes a wiring line and a pixel electrode. The liquid crystal layer includes a stripe-shaped polymer extending in a first direction and a liquid crystal molecule. The liquid crystal layer includes a first polymer in an area overlapping the wiring line and a second polymer in an area overlapping the pixel electrode. The first polymer includes a first portion extending in a direction different from the first direction. The second polymer includes a second portion extending in a direction different from the first direction. A density of the first portion is higher than a density of the second portion.
    Type: Application
    Filed: June 8, 2023
    Publication date: October 5, 2023
    Applicant: Japan Display Inc.
    Inventors: Kojiro IKEDA, Kentaro OKUYAMA, Tenfu NAKAMURA
  • Publication number: 20230314862
    Abstract: According to one embodiment, a display device includes a first display panel, and a polarizer opposed to the first display panel and having a transmission axis for transmitting linearly polarized light. The first display panel includes a first substrate, a second substrate opposed to the first substrate, and a first liquid crystal layer held between the first substrate and the second substrate and including streak-like polymers and liquid crystal molecules. An extension direction of the polymers is substantially orthogonal to the transmission axis.
    Type: Application
    Filed: June 7, 2023
    Publication date: October 5, 2023
    Applicant: Japan Display Inc.
    Inventor: Kentaro OKUYAMA
  • Publication number: 20230306921
    Abstract: A display device is provided and includes first light-transmitting substrate; second light-transmitting substrate opposed to the first light-transmitting substrate; liquid crystal layer between the first light-transmitting substrate and the second light-transmitting substrate; first electrode and a second electrode disposed so as to sandwich the liquid crystal layer; and light emitter comprising a first light emitter configured to emit light in a first color, a second light emitter configured to emit light in a second color, and a third light emitter configured to emit light in a third color, wherein first light emitter has a temperature characteristic in which a relative light intensity decreases more with increase in a heating temperature than in the case of the second light emitter and the third light emitter.
    Type: Application
    Filed: May 17, 2023
    Publication date: September 28, 2023
    Inventors: Kojiro IKEDA, Kentaro OKUYAMA, Masaaki KABE
  • Publication number: 20230305220
    Abstract: According to one embodiment, a display device includes a first transparent substrate including a first main surface, a second transparent substrate including a first end portion, a liquid crystal layer containing strip-shaped polymers and liquid crystal molecules, a third transparent substrate including a second end portion and a second main surface, a first light-emitting element and a first light guide. The first light guide includes a first surface and a second surface. A height from the first main surface to the second surface is less than a height from the first main surface to the second main surface.
    Type: Application
    Filed: June 5, 2023
    Publication date: September 28, 2023
    Applicant: Japan Display Inc.
    Inventors: Yudai NUMATA, Kentaro OKUYAMA
  • Publication number: 20230305330
    Abstract: According to one embodiment, an electronic device includes a display panel including a display area, a light source unit, a camera, a modulating element, and a control unit. The control unit permits light emission executed, displays an image in the display area, and switching the modulating element to the light-shielding state, in a light emission period. The control unit prohibits the light emission executed, switching the modulating element to the transmissive state, and makes the camera take in the external light transmitted through the display area and the modulating element, in a capturing period.
    Type: Application
    Filed: March 23, 2023
    Publication date: September 28, 2023
    Applicant: Japan Display Inc.
    Inventor: Kentaro OKUYAMA
  • Patent number: 11754899
    Abstract: According to one embodiment, a display device includes a first substrate, a second substrate and a liquid crystal layer. The first substrate includes a first insulating substrate, a scanning line, a signal line, a switching, and a pixel electrode. The liquid crystal layer includes a polymer in a shape of a streak and a liquid crystal molecule. The scanning line includes a conductive layer located between the first insulating substrate and the liquid crystal layer, and a first reflective layer located between the first insulating substrate and the conductive layer and having a reflectance higher than a reflectance of the conductive layer.
    Type: Grant
    Filed: January 23, 2023
    Date of Patent: September 12, 2023
    Assignee: Japan Display Inc.
    Inventors: Kentaro Okuyama, Yudai Numata
  • Patent number: 11747544
    Abstract: According to one embodiment, a display device includes a first transparent substrate, a second transparent substrate, a liquid crystal layer, light-emitting elements disposed in a first direction, a third transparent substrate including a main surface and a side surface opposed to the light-emitting elements, and a transparent layer disposed on the main surface and having a lower refractive index than the third transparent substrate. The third transparent substrate is bonded to the first transparent substrate or the second transparent substrate with the transparent layer sandwiched in between. The transparent layer includes strip portions disposed in the first direction and extended along a second direction.
    Type: Grant
    Filed: December 1, 2022
    Date of Patent: September 5, 2023
    Assignee: Japan Display Inc.
    Inventors: Yudai Numata, Kentaro Okuyama