Patents by Inventor Yuuki Seo

Yuuki Seo 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: 9093024
    Abstract: An image display device and method of driving an image display device with alternative repeating of an emission period during which the light emitting element is made to emit light and a non-emission period during which light emission of the light emitting element is stopped. The terminal voltage of a storage capacitor is set to the voltage of a signal line, whereby light emission luminance of the light emitting element in a next emission period is set.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: July 28, 2015
    Assignee: Sony Corporation
    Inventors: Tomoaki Handa, Yuuki Seo, Hiroshi Sagawa, Katsuhide Uchino
  • Patent number: 8736526
    Abstract: A display unit with which luminance is able to be improved and a wide view angle is able to be secured while increase of the power consumption is inhibited is provided. The display unit includes a first region placing priority on front face luminance in which an aperture ratio of a light emitting region is relatively small, a second region placing priority on view angle luminance in which the aperture ratio of the light emitting region is relatively large, and a drive means for driving the first region and the second region.
    Type: Grant
    Filed: July 7, 2010
    Date of Patent: May 27, 2014
    Assignee: Sony Corporation
    Inventors: Yuuki Seo, Junichi Yamashita, Katsuhide Uchino
  • Patent number: 8553022
    Abstract: Disclosed herein is an image display device including a display section, a signal line driving circuit, and a scanning line driving circuit. The display section is formed by arranging pixel circuits in a form of a matrix. The signal line driving circuit is configured to output a driving signal for a signal line to the signal line of the display section. The scanning line driving circuit is configured to output a driving signal for a scanning line to the scanning line of the display section. The pixel circuits each include at least a light emitting element, a driving transistor configured to drive the light emitting element connected to a source by a driving current corresponding to a gate-to-source voltage, a storage capacitor configured to retain the gate-to-source voltage, and a writing transistor configured to set a terminal voltage of the storage capacitor by a voltage of the signal line.
    Type: Grant
    Filed: July 22, 2009
    Date of Patent: October 8, 2013
    Assignee: Sony Corporation
    Inventors: Tomoaki Handa, Yuuki Seo, Katsuhide Uchino
  • Patent number: 8368825
    Abstract: A display device includes an anode electrode provided for each pixel, an opening insulation film which covers the periphery of the anode electrode and which defines an pixel opening, and a storage capacitor disposed below the anode electrode through a planarizing insulation film, having a function to store charge for driving a pixel, and including capacitor electrodes wider than the pixel opening.
    Type: Grant
    Filed: May 19, 2009
    Date of Patent: February 5, 2013
    Assignee: Sony Corporation
    Inventors: Hiroshi Sagawa, Yuuki Seo, Katsuhide Uchino
  • Publication number: 20120320029
    Abstract: An image display device and method of driving an image display device with alternative repeating of an emission period during which the light emitting element is made to emit light and a non-emission period during which light emission of the light emitting element is stopped. The terminal voltage of a storage capacitor is set to the voltage of a signal line, whereby light emission luminance of the light emitting element in a next emission period is set.
    Type: Application
    Filed: August 29, 2012
    Publication date: December 20, 2012
    Applicant: Sony Corporation
    Inventors: Tomoaki Handa, Yuuki Seo, Hiroshi Sagawa, Katsuhide Uchino
  • Patent number: 8269697
    Abstract: The present invention disposes a switch transistor between a driving transistor and a light emitting element, and sets the switch transistor in an off state during a non-emission period. Thereby, a variation in threshold voltage of the driving transistor is corrected while destruction of the light emitting element due to a reverse bias is avoided.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: September 18, 2012
    Assignee: Sony Corporation
    Inventors: Tomoaki Handa, Yuuki Seo, Hiroshi Sagawa, Katsuhide Uchino
  • Patent number: 8199078
    Abstract: A display apparatus includes: a display area formed by disposing pixel circuits in a matrix; a signal line drive circuit for generating drive signals for signal lines in accordance with image data, and outputting the drive signals for the signal lines to signal lines of the display area, respectively; and a scanning line drive circuit for outputting write signals to scanning lines for write of the display area, respectively; wherein when there is no change in the image data, the scanning line drive circuit stops the write signals from being outputted.
    Type: Grant
    Filed: July 1, 2009
    Date of Patent: June 12, 2012
    Assignee: Sony Corporation
    Inventors: Tomoaki Handa, Tetsuro Yamamoto, Yuuki Seo, Katsuhide Uchino
  • Publication number: 20110012935
    Abstract: A display unit with which luminance is able to be improved and a wide view angle is able to be secured while increase of the power consumption is inhibited is provided. The display unit includes a first region placing priority on front face luminance in which an aperture ratio of a light emitting region is relatively small, a second region placing priority on view angle luminance in which the aperture ratio of the light emitting region is relatively large, and a drive means for driving the first region and the second region.
    Type: Application
    Filed: July 7, 2010
    Publication date: January 20, 2011
    Applicant: SONY CORPORATION
    Inventors: Yuuki Seo, Junichi Yamashita, Katsuhide Uchino
  • Publication number: 20100045648
    Abstract: Disclosed herein is an image display device including a display section, a signal line driving circuit, and a scanning line driving circuit. The display section is formed by arranging pixel circuits in a form of a matrix. The signal line driving circuit is configured to output a driving signal for a signal line to the signal line of the display section. The scanning line driving circuit is configured to output a driving signal for a scanning line to the scanning line of the display section. The pixel circuits each include at least a light emitting element, a driving transistor configured to drive the light emitting element connected to a source by a driving current corresponding to a gate-to-source voltage, a storage capacitor configured to retain the gate-to-source voltage, and a writing transistor configured to set a terminal voltage of the storage capacitor by a voltage of the signal line.
    Type: Application
    Filed: July 22, 2009
    Publication date: February 25, 2010
    Applicant: Sony Corporation
    Inventors: Tomoaki Handa, Yuuki Seo, Katsuhide Uchino
  • Publication number: 20100033510
    Abstract: A display apparatus includes: a display area formed by disposing pixel circuits in a matrix; a signal line drive circuit for generating drive signals for signal lines in accordance with image data, and outputting the drive signals for the signal lines to signal lines of the display area, respectively; and a scanning line drive circuit for outputting write signals to scanning lines for write of the display area, respectively; wherein when there is no change in the image data, the scanning line drive circuit stops the write signals from being outputted.
    Type: Application
    Filed: July 1, 2009
    Publication date: February 11, 2010
    Applicant: Sony Corporation
    Inventors: Tomoaki Handa, Tetsuro Yamamoto, Yuuki Seo, Katsuhide Uchino
  • Publication number: 20090295690
    Abstract: Disclosed herein is an electronic circuit, including: a light emitting element, having diode characteristics, for emitting a light in accordance with a drive current; a sampling transistor for sampling a video signal; a driving transistor for supplying the drive current to the light emitting element; and a hold capacitor for holding therein a predetermined potential, the hold capacitor being connected to each of an anode side of the light emitting element, and a gate of the driving transistor; wherein a laminated portion of a first metallic layer serving as a gate of the sampling transistor, and a second metallic layer serving as a source of the sampling transistor is formed so as to have an area equal to or smaller than a predetermined area.
    Type: Application
    Filed: April 9, 2009
    Publication date: December 3, 2009
    Applicant: Sony Corporation
    Inventors: Yuuki Seo, Katsuhide Uchino, Hiroshi Sagawa
  • Publication number: 20090295691
    Abstract: The present invention disposes a switch transistor between a driving transistor and a light emitting element, and sets the switch transistor in an off state during a non-emission period. Thereby, a variation in threshold voltage of the driving transistor is corrected while destruction of the light emitting element due to a reverse bias is avoided.
    Type: Application
    Filed: April 30, 2009
    Publication date: December 3, 2009
    Applicant: Sony Corporation
    Inventors: Tomoaki Handa, Yuuki Seo, Hiroshi Sagawa, Katsuhide Uchino
  • Publication number: 20090288865
    Abstract: A display device includes an anode electrode provided for each pixel, an opening insulation film which covers the periphery of the anode electrode and which defines an pixel opening, and a storage capacitor disposed below the anode electrode through a planarizing insulation film, having a function to store charge for driving a pixel, and including capacitor electrodes wider than the pixel opening.
    Type: Application
    Filed: May 19, 2009
    Publication date: November 26, 2009
    Applicant: SONY CORPORATION
    Inventors: Hiroshi Sagawa, Yuuki Seo, Katsuhide Uchino