Patents by Inventor Shigesumi Araki

Shigesumi Araki 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: 20240128652
    Abstract: According to one embodiment, an intelligent reflecting surface includes a first substrate, a second substrate, a sealing material, a liquid crystal layer, and a radar absorbent material. The first substrate includes a first basement located in a first area and a second area, and a plurality of patch electrodes. The second substrate includes a second basement and a common electrode. The radar absorbent material is located in the second area.
    Type: Application
    Filed: December 7, 2023
    Publication date: April 18, 2024
    Applicant: Japan Display Inc.
    Inventors: Mitsutaka OKITA, Shinichiro OKA, Shigesumi ARAKI, Daiichi SUZUKI
  • Publication number: 20240103322
    Abstract: A phase modulating device includes a first electrode; a second electrode; and a liquid crystal layer including a plurality of liquid crystal molecules and arranged between the first electrode and the second electrode, wherein a height of the liquid crystal layer from the first electrode toward the second electrode is 30 ?m or more and 50 ?m or less, and in a planar view of a first plane including the first electrode, the liquid crystal layer and the second electrode, the first plane intersecting with an in-plane direction of the first electrode, at least two liquid crystal molecules arranged adjacent to each other in a direction parallel to the in-plane direction of the first electrode and oriented differently from each other are included.
    Type: Application
    Filed: December 6, 2023
    Publication date: March 28, 2024
    Applicant: Japan Display Inc.
    Inventors: Shigesumi ARAKI, Mitsutaka OKITA, Daiichi SUZUKI, Shinichiro OKA
  • Publication number: 20240085746
    Abstract: An intelligent reflecting surface includes a substrate having a first surface including a first side and a reflective region including a plurality of reflective elements arranged on the first surface, a plurality of reflective elements separated from each other by a first interval and arranged at a first pitch in a first direction and a second direction orthogonal to the first direction. Twice a distance from the first side to a first reflective element adjacent to the first side among the plurality of reflective elements is a sum of an integral multiple of the first pitch and the first interval.
    Type: Application
    Filed: November 15, 2023
    Publication date: March 14, 2024
    Applicant: Japan Display Inc.
    Inventors: Shigesumi ARAKI, Mitsutaka OKITA, Daiichi SUZUKI, Shinichiro OKA
  • Publication number: 20240047890
    Abstract: According to one embodiment, an intelligent reflecting surface includes a plurality of patch areas including a plurality of square patch electrodes, an electrode shape formed by the patch electrode, a first connection electrode, a second connection electrode, a third connection electrode, and a fourth connection electrode included in each of the plurality of patch areas has rotational symmetry having a point inside each of the plurality of patch areas as a center of rotation, and a first patch area, a second patch, a third patch area, and a fourth patch area have an intersection of the first patch area, the second patch area, the third patch area, and the fourth patch area as a whole as a center of rotation.
    Type: Application
    Filed: September 29, 2023
    Publication date: February 8, 2024
    Applicant: Japan Display Inc.
    Inventors: Shinichiro OKA, Mitsutaka OKITA, Daiichi SUZUKI, Shigesumi ARAKI, Yoshiaki AMANO, Hiromi MATSUNO
  • Publication number: 20240039156
    Abstract: According to one embodiment, an intelligent reflecting surface includes a first substrate, a second substrate, and a first dielectric layer sandwiched between the first substrate and the second substrate, the first substrate includes a first base, a plurality of first patch electrodes, a plurality of second patch electrodes, which are provided between the first base and the plurality of first patch electrodes, and a second dielectric layer provided between the plurality of first patch electrodes and the plurality of second patch electrodes, the first dielectric layer has a first dielectric constant, and the second dielectric layer has a second dielectric constant.
    Type: Application
    Filed: September 29, 2023
    Publication date: February 1, 2024
    Applicant: Japan Display Inc.
    Inventors: Daiichi SUZUKI, Shinichiro OKA, Shigesumi ARAKI, Mitsutaka OKITA, Yoshiaki AMANO, Hiromi MATSUNO
  • Publication number: 20240027826
    Abstract: According to one embodiment, an intelligent reflecting surface includes a first substrate including a plurality of patch electrodes spaced apart and arranged in a matrix along each of an X-axis and a Y-axis orthogonal to each other, a second substrate including a common electrode opposed to the plurality of patch electrodes in a direction parallel to a Z-axis orthogonal to each of the X-axis and the Y-axis, and a liquid crystal layer held between the first substrate and the second substrate and opposed to the plurality of patch electrodes. Each of the patch electrodes includes a first aperture.
    Type: Application
    Filed: September 29, 2023
    Publication date: January 25, 2024
    Applicant: Japan Display Inc.
    Inventors: Mitsutaka OKITA, Shinichiro OKA, Shigesumi ARAKI, Daiichi SUZUKI, Yoshiaki AMANO, Hiromi MATSUNO
  • Patent number: 11881047
    Abstract: An optical sensor capable of obtaining a plurality of types of information by a plurality of wavelengths in a short time is provided. The optical sensor includes a light receiving unit that includes a first and second pinhole layer that includes a plurality of pinholes, a first and second transmission layer, and a plurality of microlenses belonging to a first and second group, the microlenses being disposed at positions respectively overlapping the plurality of pixels on the second transmission layer. Either of the plurality of microlenses belonging to the first or second group is a first wavelength selection unit that transmits light of a first wavelength. At least one of the other of the plurality of microlenses belonging to the first and second group, the first transmission layer, and the second transmission layer is a second wavelength selection unit that transmits light of a second wavelength.
    Type: Grant
    Filed: March 10, 2023
    Date of Patent: January 23, 2024
    Assignee: Japan Display Inc.
    Inventors: Kazuki Matsunaga, Shigesumi Araki, Yasushi Tomioka
  • Publication number: 20230400747
    Abstract: According to one embodiment, an intelligent reflecting device includes a first substrate including a first base and a plurality of patch electrodes, a second substrate including a second base and a common electrode opposed to the plurality of patch electrodes, a liquid crystal layer held between the first and second substrates, a heat exchanger provided in contact with the second substrate, a temperature sensor, and a temperature controller that controls the heat exchanger based on the temperature detected by the temperature sensor, wherein an incident wave is incident on an incidence surface of the first substrate, and the heat exchanger is provided on a surface opposed to the incidence surface.
    Type: Application
    Filed: August 17, 2023
    Publication date: December 14, 2023
    Applicant: Japan Display Inc.
    Inventors: Shinichiro OKA, Mitsutaka OKITA, Daiichi SUZUKI, Shigesumi ARAKI
  • Publication number: 20230378383
    Abstract: According to an aspect, a detection device includes: a first substrate; a plurality of photodiodes provided on the first substrate; and an optical filter layer including a plurality of light-transmitting regions provided so as to overlap the respective photodiodes, a light-blocking region provided between the light-transmitting regions, and a projection projecting from a surface of the light-blocking region facing the first substrate.
    Type: Application
    Filed: July 28, 2023
    Publication date: November 23, 2023
    Inventors: Kazuki MATSUNAGA, Shigesumi ARAKI
  • Publication number: 20230298379
    Abstract: An optical sensor capable of obtaining a plurality of types of information by a plurality of wavelengths in a short time is provided. The optical sensor includes a light receiving unit that includes a first and second pinhole layer that includes a plurality of pinholes, a first and second transmission layer, and a plurality of microlenses belonging to a first and second group, the microlenses being disposed at positions respectively overlapping the plurality of pixels on the second transmission layer. Either of the plurality of microlenses belonging to the first or second group is a first wavelength selection unit that transmits light of a first wavelength. At least one of the other of the plurality of microlenses belonging to the first and second group, the first transmission layer, and the second transmission layer is a second wavelength selection unit that transmits light of a second wavelength.
    Type: Application
    Filed: March 10, 2023
    Publication date: September 21, 2023
    Inventors: Kazuki MATSUNAGA, Shigesumi ARAKI, Yasushi TOMIOKA
  • Patent number: 11686975
    Abstract: Provided is a display device including an array substrate, a pixel, a dimming element, and a counter substrate. The pixel is located over the array substrate and includes a first electrode, a second electrode, and a liquid crystal layer over the first electrode and the second electrode. The dimming element is located over the array substrate and includes a third electrode, the liquid crystal layer over the third electrode, and a fourth electrode over the liquid crystal layer. The counter substrate is located over the fourth electrode.
    Type: Grant
    Filed: November 29, 2021
    Date of Patent: June 27, 2023
    Assignee: Japan Display Inc.
    Inventors: Shigesumi Araki, Toshiharu Matsushima, Shinichi Komura
  • Publication number: 20230170367
    Abstract: An optical sensor includes a light receiving part including a plurality of pixels and receiving light from a measuring object, the pixels being disposed in a matrix along a first direction and a second direction, and a louver film in which a first layer and a second layer are laminated, the first layer including a transmissive portion that transmits light of a predetermined wavelength band and a light shielding portion that spiels light, the transmissive portion and the light shielding portion being alternately disposed along the first direction, the second layer including the transmissive portion and the light shielding portion that are alternately disposed along the second direction. The transmissive portion included in one of the first layer and the second layer includes a first wavelength selecting unit that transmits light of a first wavelength band and a second wavelength selecting unit that transmits light of a second wavelength band.
    Type: Application
    Filed: November 29, 2022
    Publication date: June 1, 2023
    Inventors: Kazuki MATSUNAGA, Shigesumi ARAKI, Yasushi TOMIOKA
  • Patent number: 11573449
    Abstract: According to one embodiment, a display device comprises a collimating layer including first to third openings, first to third color filters overlaid on the first to third openings, respectively, a first sensor outputting a first detection signal corresponding to light made incident through the first opening and the first color filter, a second sensor outputting a second detection signal corresponding to light made incident through the second opening and the second color filter, and a third sensor outputting a third detection signal corresponding to light made incident through the third opening and the third color filter.
    Type: Grant
    Filed: January 19, 2022
    Date of Patent: February 7, 2023
    Assignee: Japan Display Inc.
    Inventors: Tomoyuki Ito, Kazuki Matsunaga, Shigesumi Araki, Kazuhide Mochizuki
  • Patent number: 11550429
    Abstract: According to one embodiment, a liquid crystal display device comprises first and second substrates and a liquid crystal layer. The first substrate includes a base member, a sensor between the base member and the liquid crystal layer, a collimation layer between the sensor and the liquid crystal layer, an insulating layer between the sensor and the collimation layer, an insulating layer, and a light shielding layer between the sensor and the base member. The sensor is configured to output a signal corresponding to light incident from a liquid crystal layer side. The light shielding layer overlaps with an outer peripheral part of the first collimation layer.
    Type: Grant
    Filed: December 21, 2021
    Date of Patent: January 10, 2023
    Assignee: Japan Display Inc.
    Inventors: Tomoyuki Ito, Kazuki Matsunaga, Shigesumi Araki, Kazuhide Mochizuki
  • 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: 20220229329
    Abstract: According to one embodiment, a display device comprises a collimating layer including first to third openings, first to third color filters overlaid on the first to third openings, respectively, a first sensor outputting a first detection signal corresponding to light made incident through the first opening and the first color filter, a second sensor outputting a second detection signal corresponding to light made incident through the second opening and the second color filter, and a third sensor outputting a third detection signal corresponding to light made incident through the third opening and the third color filter.
    Type: Application
    Filed: January 19, 2022
    Publication date: July 21, 2022
    Applicant: Japan Display Inc.
    Inventors: Tomoyuki ITO, Kazuki MATSUNAGA, Shigesumi ARAKI, Kazuhide MOCHIZUKI
  • Publication number: 20220221954
    Abstract: According to one embodiment, a liquid crystal display device comprises first and second substrates and a liquid crystal layer. The first substrate includes a base member, a sensor between the base member and the liquid crystal layer, a collimation layer between the sensor and the liquid crystal layer, an insulating layer between the sensor and the collimation layer, an insulating layer, and a light shielding layer between the sensor and the base member. The sensor is configured to output a signal corresponding to light incident from a liquid crystal layer side. The light shielding layer overlaps with an outer peripheral part of the first collimation layer.
    Type: Application
    Filed: December 21, 2021
    Publication date: July 14, 2022
    Applicant: Japan Display Inc.
    Inventors: Tomoyuki ITO, Kazuki MATSUNAGA, Shigesumi ARAKI, Kazuhide MOCHIZUKI
  • Patent number: 11294211
    Abstract: According to one embodiment, a display device includes a flexible base, a display area, first lines arranged in a first direction, pixel electrodes, and a first inorganic insulating layer contacting the lines. The display area includes a first area in which the lines are arranged in the first direction at a first pitch and a second area in which the lines are arranged in the first direction at a second pitch greater than the first pitch, and the second area is located between the first area and an edge of the base in the first direction. In the second area, the first inorganic insulating layer comprises a first slit extending along the lines between adjacent lines.
    Type: Grant
    Filed: July 7, 2020
    Date of Patent: April 5, 2022
    Assignee: Japan Display Inc.
    Inventor: Shigesumi Araki
  • Publication number: 20220082877
    Abstract: Provided is a display device including an array substrate, a pixel, a dimming element, and a counter substrate. The pixel is located over the array substrate and includes a first electrode, a second electrode, and a liquid crystal layer over the first electrode and the second electrode. The dimming element is located over the array substrate and includes a third electrode, the liquid crystal layer over the third electrode, and a fourth electrode over the liquid crystal layer. The counter substrate is located over the fourth electrode.
    Type: Application
    Filed: November 29, 2021
    Publication date: March 17, 2022
    Inventors: Shigesumi ARAKI, Toshiharu MATSUSHIMA, Shinichi KOMURA
  • Patent number: 11221521
    Abstract: Provided is a display device including an array substrate, a pixel, a dimming element, and a counter substrate. The pixel is located over the array substrate and includes a first electrode, a second electrode, and a liquid crystal layer over the first electrode and the second electrode. The dimming element is located over the array substrate and includes a third electrode, the liquid crystal layer over the third electrode, and a fourth electrode over the liquid crystal layer. The counter substrate is located over the fourth electrode.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: January 11, 2022
    Assignee: Japan Display Inc.
    Inventors: Shigesumi Araki, Toshiharu Matsushima, Shinichi Komura