Patents by Inventor Hitoshi Ota

Hitoshi Ota 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: 10483330
    Abstract: There is provided an electro-optical device including a first pixel, a second pixel, a third pixel, a first light shielding portion provided between the first pixel and the second pixel, a second light shielding portion provided between the second pixel and the third pixel, in which a width of the first light shielding portion and a width of the second light shielding portion are different.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: November 19, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Hitoshi Ota
  • Publication number: 20190279572
    Abstract: Provided is an electro-optical device including a display region including a pixel circuit and a data line corresponding to the pixel circuit, a data line drive circuit configured to output a gradation voltage, and a first capacitor configured to hold a gradation voltage output from the data line drive circuit, and the capacitor is provided in the display region.
    Type: Application
    Filed: March 8, 2019
    Publication date: September 12, 2019
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Hitoshi OTA, Takeshi KOSHIHARA
  • Publication number: 20190279568
    Abstract: An electro-optical device is provided that includes a first wiring, a first data line and a second data line, a first pixel circuit coupled to the first data line, a second pixel circuit coupled to the second data line, a first switch having a first end coupled to the first wiring and a second end coupled to the first data line, and a second switch having a first end coupled to the first wiring and a second end coupled to the second data line.
    Type: Application
    Filed: March 8, 2019
    Publication date: September 12, 2019
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Hitoshi OTA, Takeshi KOSHIHARA
  • Patent number: 10403701
    Abstract: Subpixels of R, G, and B corresponding to a scanning line as a first conductive layer extended in a row direction and a data transfer line as a second conductive layer extended in a column direction are provided. A plurality of transistors in the subpixel of each of the colors is disposed along the column direction, and a reflective layer in the subpixel of at least one color is disposed along the row direction so as to overlap any transistor of subpixels of each display color. A center position of a disposition region of a reflective layer in one pixel unit including the subpixels of R, G, and B is different from a center position of a disposition region of a transistor in one pixel unit.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: September 3, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takeshi Koshihara, Hitoshi Ota, Ryoichi Nozawa
  • Publication number: 20190251901
    Abstract: An electro-optical device includes a first data transfer line that intersects a scan line, a second data transfer line, a first transistor that controls coupling between the first data transfer line and the second transfer line. The two or more second data transfer lines are respectively coupled to the first data transfer line via first capacitors, and when a collection of pixel circuits that are coupled to the same first data transfer line via the second data transfer lines is referred to as a pixel string, the second data transfer lines are provided to pixel circuits less than the pixel circuits included in the pixel string.
    Type: Application
    Filed: April 23, 2019
    Publication date: August 15, 2019
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Hitoshi OTA, Takeshi KOSHIHARA
  • Patent number: 10367035
    Abstract: An electrooptical device includes a first sub-pixel, a first region, a second sub-pixel, a second region, a third sub-pixel, a third region, a fourth sub-pixel, and a fourth region, which are arranged in an X direction as a first direction. The first sub-pixel and the second sub-pixel have different colors from each other, the third sub-pixel and the fourth sub-pixel have different colors from each other, and the first region, the second region, the third region, and the fourth region have the same length in the X direction.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: July 30, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Hitoshi Ota, Takeshi Koshihara
  • Publication number: 20190229178
    Abstract: An electro-optical device includes a first circuit configured to supply a first data signal to a first pixel circuit through a first data transmission line, a second circuit configured to supply a second data signal to a second pixel circuit through a second data transmission line, a first signal line connected to the first circuit, and a second signal line connected to the second circuit. One of the first signal line and the second signal line is at least partially formed in a wiring layer that differs from that of the other.
    Type: Application
    Filed: January 24, 2019
    Publication date: July 25, 2019
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Hitoshi OTA
  • Publication number: 20190228713
    Abstract: A display device includes a display unit including pixel circuits disposed corresponding to each intersection of plurality of scanning lines and a plurality of data transfer lines that includes a first data transfer line, a second data transfer line, and a third data transfer line, and a driving circuit configured to select the plurality of scanning lines and apply a gradation signal to the plurality of data transfer lines. The second and third data transfer lines are connected to each other.
    Type: Application
    Filed: January 24, 2019
    Publication date: July 25, 2019
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Tsuyoshi TAMURA, Hitoshi OTA, Robina ATSUCHI
  • Patent number: 10340321
    Abstract: An electro-optical device includes a first electrode that is coupled to a first data transfer line, a second electrode that is coupled to a second data transfer line. The first and second electrodes are respectively formed in different layers. A first capacitor is formed of the first electrode, the second electrode, and a dielectric film between the first electrode and the second electrode. In addition, a power supplying line and the first data transfer line are formed in a same layer. A second capacitor is formed of the power supplying line, the first data transfer line, and an insulating layer between the power supplying line and the first data transfer line.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: July 2, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Hitoshi Ota, Ryoichi Nozawa
  • Patent number: 10332450
    Abstract: An electro-optical device includes a first data transfer line that intersects a scan line, a second data transfer line, a first transistor that controls coupling between the first data transfer line and the second transfer line. The two or more second data transfer lines are respectively coupled to the first data transfer line via first capacitors, and when a collection of pixel circuits that are coupled to the same first data transfer line via the second data transfer lines is referred to as a pixel string, the second data transfer lines are provided to pixel circuits less than the pixel circuits included in the pixel string.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: June 25, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Hitoshi Ota, Takeshi Koshihara
  • Publication number: 20190171022
    Abstract: The display device includes the first light-emitting element, a second light-emitting element, a first color filter through which light from the first light-emitting element passes, and a second color filter through which the light from the second light-emitting element passes. The relative positional relationship between the center of the first light-emitting element and the center of the first color filter is different from the relative positional relationship between the center of the second light-emitting element and the center of the second color filter.
    Type: Application
    Filed: February 7, 2019
    Publication date: June 6, 2019
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takeshi KOSHIHARA, Hitoshi OTA
  • Publication number: 20190140040
    Abstract: An organic electroluminescent device includes a first transistor, a power supply line layer connected to one current terminal of the first transistor, a capacitive element including a first capacitive electrode connected to a gate of the first transistor, and a second capacitive electrode, a signal line, and a pixel electrode connected to the other current terminal of the first transistor, the first capacitive electrode is provided on a layer over the gate of the first transistor, and the power supply line layer is provided on a layer between the first capacitive electrode and the signal line.
    Type: Application
    Filed: December 14, 2018
    Publication date: May 9, 2019
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Hitoshi OTA, Ryoichi NOZAWA
  • Patent number: 10283052
    Abstract: An electro-optical device includes: a pixel circuit that includes a first transistor and an electro-optical element to which a current is supplied from the first transistor, the pixel circuit being driven in a frame period composed of a display period and a blanking period; a driving circuit that controls the pixel circuit such that the pixel circuit executes a compensation operation that compensates the property of the first transistor in the display period and such that the pixel circuit does not execute the compensation operation in the blanking period; and a dummy circuit that consumes electric power in the blanking period such that the total power consumption in the pixel circuit and the dummy circuit in the display period and the total power consumption in the pixel circuit and the dummy circuit in the blanking period approach each other.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: May 7, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Hitoshi Ota
  • Patent number: 10247948
    Abstract: The display device includes the first light-emitting element, a second light-emitting element, a first color filter through which light from the first light-emitting element passes, and a second color filter through which the light from the second light-emitting element passes. The relative positional relationship between the center of the first light-emitting element and the center of the first color filter is different from the relative positional relationship between the center of the second light-emitting element and the center of the second color filter.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: April 2, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takeshi Koshihara, Hitoshi Ota
  • Patent number: 10236473
    Abstract: Reflection layers are arranged for respective pixels with predetermined intervals in a row direction (X direction) and a column direction (Y direction) in a display region, and, subsequently to the display region, are arranged in the same manner with the predetermined intervals in the row direction (X direction) and the column direction (Y direction) also in a peripheral region around the display region. First electrodes, first light path adjusting layers, and second light path adjusting layers are arranged for the respective pixels in the display region, and are arranged so as to correspond to the respective reflection layers also in the peripheral region. The respective reflection layers are partially connected to each other in the peripheral region and are electrically connected to a second electrode at a cathode potential.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: March 19, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takeshi Koshihara, Hitoshi Ota
  • Publication number: 20190051714
    Abstract: Subpixels of R, G, and B corresponding to a scanning line as a first conductive layer extended in a row direction and a data transfer line as a second conductive layer extended in a column direction are provided. A plurality of transistors in the subpixel of each of the colors is disposed along the column direction, and a reflective layer in the subpixel of at least one color is disposed along the row direction so as to overlap any transistor of subpixels of each display color. A center position of a disposition region of a reflective layer in one pixel unit including the subpixels of R, G, and B is different from a center position of a disposition region of a transistor in one pixel unit.
    Type: Application
    Filed: October 12, 2018
    Publication date: February 14, 2019
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takeshi KOSHIHARA, Hitoshi OTA, Ryoichi NOZAWA
  • Patent number: 10186565
    Abstract: An organic electroluminescent device includes a first transistor, a power supply line layer connected to one current terminal of the first transistor, a capacitive element including a first capacitive electrode connected to a gate of the first transistor, and a second capacitive electrode, a signal line, and a pixel electrode connected to the other current terminal of the first transistor, the first capacitive electrode is provided on a layer over the gate of the first transistor, and the power supply line layer is provided on a layer between the first capacitive electrode and the signal line.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: January 22, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Hitoshi Ota, Ryoichi Nozawa
  • Patent number: 10177211
    Abstract: Subpixels of R, G, and B corresponding to a scanning line extended in a row direction and a data transfer line extended in a column direction are provided. A plurality of transistors in the subpixel of each of the colors is disposed along the column direction, and a reflective layer in the subpixel of at least one color is disposed along the row direction so as to overlap any transistor of subpixels of each display color. A power source wiring is disposed between the reflective layer and the transistor along the row direction, so as to overlap the transistor. Relay electrodes which connects the reflective layer and any transistor of subpixels of each display color are formed on a layer between a layer on which the power source wiring is formed, and the reflective layer.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: January 8, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takeshi Koshihara, Hitoshi Ota, Ryoichi Nozawa
  • Publication number: 20190006429
    Abstract: There is provided an electro-optical device including a first pixel, a second pixel, a third pixel, a first light shielding portion provided between the first pixel and the second pixel, a second light shielding portion provided between the second pixel and the third pixel, in which a width of the first light shielding portion and a width of the second light shielding portion are different.
    Type: Application
    Filed: June 20, 2018
    Publication date: January 3, 2019
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Hitoshi OTA
  • Publication number: 20180357957
    Abstract: An electro-optical device includes a first data transfer line that intersects a scan line, a second data transfer line, a first transistor that controls coupling between the first data transfer line and the second transfer line. The two or more second data transfer lines are respectively coupled to the first data transfer line via first capacitors, and when a collection of pixel circuits that are coupled to the same first data transfer line via the second data transfer lines is referred to as a pixel string, the second data transfer lines are provided to pixel circuits less than the pixel circuits included in the pixel string.
    Type: Application
    Filed: August 20, 2018
    Publication date: December 13, 2018
    Applicant: Seiko Epson Corporation
    Inventors: Hitoshi OTA, Takeshi Koshihara