Patents by Inventor Akira Yumoto

Akira Yumoto 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: 10885878
    Abstract: Herein disclosed an image display including: row scan lines configured to supply a control signal; column signal lines configured to supply a video signal; and pixel circuits configured to be disposed at intersections between the scan lines and the signal lines, wherein each of the pixel circuits has at least a drive transistor, a sampling transistor connected to a gate of the drive transistor, a capacitive part connected between the gate and a source of the drive transistor, and a light-emitting element connected to the source of the drive transistor.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: January 5, 2021
    Assignee: Sony Corporation
    Inventor: Akira Yumoto
  • Publication number: 20200066231
    Abstract: Herein disclosed an image display including: row scan lines configured to supply a control signal; column signal lines configured to supply a video signal; and pixel circuits configured to be disposed at intersections between the scan lines and the signal lines, wherein each of the pixel circuits has at least a drive transistor, a sampling transistor connected to a gate of the drive transistor, a capacitive part connected between the gate and a source of the drive transistor, and a light-emitting element connected to the source of the drive transistor.
    Type: Application
    Filed: September 4, 2019
    Publication date: February 27, 2020
    Inventor: Akira Yumoto
  • Patent number: 10504396
    Abstract: A display device includes: a display unit that includes a plurality of pixels and a plurality of scanning signal lines delivering scanning pulses to the plurality of pixels; and a scanning unit that includes a first switch provided in association with each of the plurality of scanning signal lines and selectively extracting the scanning pulse from one of a plurality of scanning pulse signals including the plurality of scanning pulses.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: December 10, 2019
    Assignee: Sony Corporation
    Inventors: Seiichiro Jinta, Akira Yumoto, Takahiro Seki
  • Patent number: 10438565
    Abstract: Herein disclosed an image display including: row scan lines configured to supply a control signal; column signal lines configured to supply a video signal; and pixel circuits configured to be disposed at intersections between the scan lines and the signal lines, wherein each of the pixel circuits has at least a drive transistor, a sampling transistor connected to a gate of the drive transistor, a capacitive part connected between the gate and a source of the drive transistor, and a light-emitting element connected to the source of the drive transistor.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: October 8, 2019
    Assignee: Sony Corporation
    Inventor: Akira Yumoto
  • Patent number: 10269296
    Abstract: An active-matrix display device employs current-programmed-type pixel circuits and performs the writing data to each of pixels on a line-by-line basis. The active-matrix display device having a matrix of current-programmed-type pixel circuits includes a data line driving circuit 15 formed of m current driving circuits (CD) 15-1 to 15-m arranged corresponding to respective data lines 13-1 to 13-m. The data line driving circuit (CD) 15-1 to 15-m holds image data (luminance data herein) in the form of voltage, and then converts the voltage of the image data into a current signal. The current signal is then fed to the data lines 13-1 to 13-m at a time. The image information is thus written on the pixel circuits 11.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: April 23, 2019
    Assignee: Sony Corporation
    Inventor: Akira Yumoto
  • Publication number: 20190012946
    Abstract: A display device includes: a display unit that includes a plurality of pixels and a plurality of scanning signal lines delivering scanning pulses to the plurality of pixels; and a scanning unit that includes a first switch provided in association with each of the plurality of scanning signal lines and selectively extracting the scanning pulse from one of a plurality of scanning pulse signals including the plurality of scanning pulses.
    Type: Application
    Filed: July 9, 2018
    Publication date: January 10, 2019
    Inventors: Seiichiro Jinta, Akira Yumoto, Takahiro Seki
  • Publication number: 20180357983
    Abstract: Herein disclosed an image display including: row scan lines configured to supply a control signal; column signal lines configured to supply a video signal; and pixel circuits configured to be disposed at intersections between the scan lines and the signal lines, wherein each of the pixel circuits has at least a drive transistor, a sampling transistor connected to a gate of the drive transistor, a capacitive part connected between the gate and a source of the drive transistor, and a light-emitting element connected to the source of the drive transistor.
    Type: Application
    Filed: July 30, 2018
    Publication date: December 13, 2018
    Inventor: Akira Yumoto
  • Patent number: 10062361
    Abstract: Herein disclosed an image display including: row scan lines configured to supply a control signal; column signal lines configured to supply a video signal; and pixel circuits configured to be disposed at intersections between the scan lines and the signal lines, wherein each of the pixel circuits has at least a drive transistor, a sampling transistor connected to a gate of the drive transistor, a capacitive part connected between the gate and a source of the drive transistor, and a light-emitting element connected to the source of the drive transistor.
    Type: Grant
    Filed: July 3, 2017
    Date of Patent: August 28, 2018
    Assignee: Sony Corporation
    Inventor: Akira Yumoto
  • Patent number: 10043431
    Abstract: A display device includes: a display unit that includes a plurality of pixels and a plurality of scanning signal lines delivering scanning pulses to the plurality of pixels; and a scanning unit that includes a first switch provided in association with each of the plurality of scanning signal lines and selectively extracting the scanning pulse from one of a plurality of scanning pulse signals including the plurality of scanning pulses.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: August 7, 2018
    Assignee: Sony Corporation
    Inventors: Seiichiro Jinta, Akira Yumoto, Takahiro Seki
  • Publication number: 20170358260
    Abstract: An active-matrix display device employs current-programmed-type pixel circuits and performs the writing data to each of pixels on a line-by-line basis. The active-matrix display device having a matrix of current-programmed-type pixel circuits includes a data line driving circuit 15 formed of m current driving circuits (CD) 15-1 to 15-m arranged corresponding to respective data lines 13-1 to 13-m. The data line driving circuit (CD) 15-1 to 15-m holds image data (luminance data herein) in the form of voltage, and then converts the voltage of the image data into a current signal. The current signal is then fed to the data lines 13-1 to 13-m at a time. The image information is thus written on the pixel circuits 11.
    Type: Application
    Filed: August 2, 2017
    Publication date: December 14, 2017
    Inventor: Akira Yumoto
  • Publication number: 20170316759
    Abstract: Herein disclosed an image display including: row scan lines configured to supply a control signal; column signal lines configured to supply a video signal; and pixel circuits configured to be disposed at intersections between the scan lines and the signal lines, wherein each of the pixel circuits has at least a drive transistor, a sampling transistor connected to a gate of the drive transistor, a capacitive part connected between the gate and a source of the drive transistor, and a light-emitting element connected to the source of the drive transistor.
    Type: Application
    Filed: July 3, 2017
    Publication date: November 2, 2017
    Inventor: Akira Yumoto
  • Patent number: 9741289
    Abstract: An active-matrix display device employs current-programmed-type pixel circuits and performs the writing data to each of pixels on a line-by-line basis. The active-matrix display device having a matrix of current-programmed-type pixel circuits includes a data line driving circuit 15 formed of m current driving circuits (CD) 15-1 to 15-m arranged corresponding to respective data lines 13-1 to 13-m. The data line driving circuit (CD) 15-1 to 15-m holds image data (luminance data herein) in the form of voltage, and then converts the voltage of the image data into a current signal. The current signal is than fed to the data lines 13-1 to 13-m at a time. The image information is thus written on the pixel circuits 11.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: August 22, 2017
    Assignee: Sony Corporation
    Inventor: Akira Yumoto
  • Patent number: 9734799
    Abstract: Herein disclosed an image display including: row scan lines configured to supply a control signal; column signal lines configured to supply a video signal; and pixel circuits configured to be disposed at intersections between the scan lines and the signal lines, wherein each of the pixel circuits has at least a drive transistor, a sampling transistor connected to a gate of the drive transistor, a capacitive part connected between the gate and a source of the drive transistor, and a light-emitting element connected to the source of the drive transistor.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: August 15, 2017
    Assignee: Sony Corporation
    Inventor: Akira Yumoto
  • Patent number: 9570048
    Abstract: Herein disclosed an image display including: row scan lines configured to supply a control signal; column signal lines configured to supply a video signal; and pixel circuits configured to be disposed at intersections between the scan lines and the signal lines, wherein each of the pixel circuits has at least a drive transistor, a sampling transistor connected to a gate of the drive transistor, a capacitive part connected between the gate and a source of the drive transistor, and a light-emitting element connected to the source of the drive transistor.
    Type: Grant
    Filed: May 23, 2007
    Date of Patent: February 14, 2017
    Assignee: Sony Corporation
    Inventor: Akira Yumoto
  • Patent number: 9412289
    Abstract: A display unit that drives pixels field sequentially includes pixel circuits disposed in a matrix form of rows and columns and a drive control section that causes the pixel circuits to display image frames of input image data such that a single frame of the image frames is displayed in two parts as a first sub-frame and as a second sub-frame. The first and second sub-frames are displayed field sequentially by different portions of the pixel circuits. The first sub-frame is displayed by a first portion of the pixel circuits that are located in a checked pattern, while the second sub-frame is displayed by the remaining pixel circuits.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: August 9, 2016
    Assignee: Sony Corporation
    Inventors: Seiichiro Jinta, Akira Yumoto, Takahiro Seki
  • Publication number: 20160117984
    Abstract: An active-matrix display device employs current-programmed-type pixel circuits and performs the writing data to each of pixels on a line-by-line basis. The active-matrix display device having a matrix of current-programmed-type pixel circuits includes a data line driving circuit 15 formed of m current driving circuits (CD) 15-1 to 15-m arranged corresponding to respective data lines 13-1 to 13-m. The data line driving circuit (CD) 15-1 to 15-m holds image data (luminance data herein) in the form of voltage, and then converts the voltage of the image data into a current signal. The current signal is than fed to the data lines 13-1 to 13-m at a time. The image information is thus written on the pixel circuits 11.
    Type: Application
    Filed: December 28, 2015
    Publication date: April 28, 2016
    Inventor: Akira Yumoto
  • Patent number: 9245481
    Abstract: An active-matrix display device employs current-programmed-type pixel circuits and performs the writing data to each of pixels on a line-by-line basis. The active-matrix display device having a matrix of current-programmed-type pixel circuits includes a data line driving circuit 15 formed of m current driving circuits (CD) 15-1 to 15-m arranged corresponding to respective data lines 13-1 to 13-m. The data line driving circuit (CD) 15-1 to 15-m holds image data (luminance data herein) in the form of voltage, and then converts the voltage of the image data into a current signal. The current signal is then fed to the data lines 13-1 to 13-m at a time. The image information is thus written on the pixel circuits 11.
    Type: Grant
    Filed: July 22, 2014
    Date of Patent: January 26, 2016
    Assignee: Sony Corporation
    Inventor: Akira Yumoto
  • Patent number: 9214496
    Abstract: A transistor includes: a gate electrode; a semiconductor layer facing the gate electrode with an insulating layer in between; a pair of source-drain electrodes electrically connected to the semiconductor layer; and a contact layer provided in a moving path of carriers between each of the pair of source-drain electrodes and the semiconductor layer, the contact layer having end surfaces covered with the source-drain electrode.
    Type: Grant
    Filed: February 2, 2015
    Date of Patent: December 15, 2015
    Assignee: Sony Corporation
    Inventors: Shinichi Ushikura, Akihiro Nomoto, Ryouichi Yasuda, Akira Yumoto, Nobuhide Yoneya, Shimpei Tsujikawa
  • Publication number: 20150228252
    Abstract: Herein disclosed an image display including: row scan lines configured to supply a control signal; column signal lines configured to supply a video signal; and pixel circuits configured to be disposed at intersections between the scan lines and the signal lines, wherein each of the pixel circuits has at least a drive transistor, a sampling transistor connected to a gate of the drive transistor, a capacitive part connected between the gate and a source of the drive transistor, and a light-emitting element connected to the source of the drive transistor.
    Type: Application
    Filed: March 25, 2015
    Publication date: August 13, 2015
    Inventor: Akira Yumoto
  • Publication number: 20150179707
    Abstract: A transistor includes: a gate electrode; a semiconductor layer facing the gate electrode with an insulating layer in between; a pair of source-drain electrodes electrically connected to the semiconductor layer; and a contact layer provided in a moving path of carriers between each of the pair of source-drain electrodes and the semiconductor layer, the contact layer having end surfaces covered with the source-drain electrode.
    Type: Application
    Filed: February 2, 2015
    Publication date: June 25, 2015
    Applicant: Sony Corporation
    Inventors: Shinichi Ushikura, Akihiro Nomoto, Ryouichi Yasuda, Akira Yumoto, Nobuhide Yoneya, Shimpei Tsujikawa