Patents by Inventor Keisuke KAWANA

Keisuke KAWANA 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: 9905621
    Abstract: An organic electro-luminescence display device includes: a first substrate having transmissive properties; a touch electrode for a touch sensor, the touch electrode being provided on a main surface of the first substrate; an insulating film provided on the main surface and covering the touch electrode wherein the insulating film includes a first surface at the touch electrode-side and a second surface opposite to the first surface; an organic light-emitting element provided on the second surface of the insulating film; a second substrate provided facing the main surface of the first substrate; and an integrated circuit electrically connected with both the touch electrode and the organic light-emitting element. The touch electrode, the insulating film, and the organic light-emitting element are interposed between the first substrate and the second substrate.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: February 27, 2018
    Assignee: FUTABA CORPORATION
    Inventors: Yuki Hirota, Yukio Kamiyama, Keisuke Kawana, Saori Imanishi, Keisuke Watanabe
  • Publication number: 20170229521
    Abstract: An organic electro-luminescence display device includes: a first substrate having transmissive properties; a touch electrode for a touch sensor, the touch electrode being provided on a main surface of the first substrate; an insulating film provided on the main surface and covering the touch electrode wherein the insulating film includes a first surface at the touch electrode-side and a second surface opposite to the first surface; an organic light-emitting element provided on the second surface of the insulating film; a second substrate provided facing the main surface of the first substrate; and an integrated circuit electrically connected with both the touch electrode and the organic light-emitting element. The touch electrode, the insulating film, and the organic light-emitting element are interposed between the first substrate and the second substrate.
    Type: Application
    Filed: February 8, 2017
    Publication date: August 10, 2017
    Inventors: Yuki HIROTA, Yukio KAMIYAMA, Keisuke KAWANA, Saori IMANISHI, Keisuke WATANABE
  • Patent number: 9666138
    Abstract: A display driving device performs display drive based on display data with respect to a display unit including pixels arranged at respective intersections of data lines and scanning lines. The device includes: a current setting unit configured to store current gradation values which are set for the respective scanning lines that constitute a frame of the display data; a current gradation control unit configured to, at each of scan timings for the respective scanning lines within one frame, generate a constant current corresponding to a current gradation value for a corresponding scanning line among the current gradation values stored in the current setting unit; and a data line driving unit configured to supply the constant current generated by the current gradation control unit to the respective data lines for time periods corresponding to pixel gradation values defined by the display data.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: May 30, 2017
    Assignee: FUTABA CORPORATION
    Inventors: Takashi Muguruma, Terukazu Sugimoto, Keisuke Kawana, Yukio Kamiyama, Kazuhiro Iwata
  • Patent number: 9607550
    Abstract: A scanning line driving device drives scanning lines in a display unit including data lines each connected to a plurality of pixels arranged in a column direction and the scanning lines each connected to a plurality of pixels arranged in a row direction, the pixels arranged at respective intersections of the data lines and the scanning lines. The device is configured to sequentially keep each of the scanning lines in a selected state pursuant to a predetermined order and output a scanning line drive signal, which is set to a low level in a high-luminance display drive and to a high level in a low-luminance display drive, to all the scanning lines during a blanking period between a period in which one scanning line is kept selected and a period in which a next scanning line is kept selected.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: March 28, 2017
    Assignee: FUTABA CORPORATION
    Inventors: Terukazu Sugimoto, Keisuke Kawana
  • Publication number: 20170076666
    Abstract: A display driving device performs display drive based on display data on a display unit in which data lines connected to a plurality of pixels arranged in a column direction and scanning lines connected to a plurality of pixels arranged in a row direction are disposed and in which the pixels are arranged at respective intersections of the data lines and the scanning lines. The display driving device includes a data line driving unit configured to supply a constant current to the data lines for time periods corresponding to gradation values of pixels specified by the display data whenever the scanning lines are selected. The data line driving unit drives the data lines such that the constant current is supplied to all or a part of pixels, of which gradation values specified by the display data indicate non-emission, for a non-emission time period.
    Type: Application
    Filed: August 12, 2016
    Publication date: March 16, 2017
    Inventors: Keisuke KAWANA, Takehiro IIZAWA, Yasuaki TAMAKI
  • Publication number: 20150170612
    Abstract: A display driving device performs display drive based on display data with respect to a display unit including pixels arranged at respective intersections of data lines and scanning lines. The device includes: a current setting unit configured to store current gradation values which are set for the respective scanning lines that constitute a frame of the display data; a current gradation control unit configured to, at each of scan timings for the respective scanning lines within one frame, generate a constant current corresponding to a current gradation value for a corresponding scanning line among the current gradation values stored in the current setting unit; and a data line driving unit configured to supply the constant current generated by the current gradation control unit to the respective data lines for time periods corresponding to pixel gradation values defined by the display data.
    Type: Application
    Filed: December 12, 2014
    Publication date: June 18, 2015
    Inventors: Takashi MUGURUMA, Terukazu SUGIMOTO, Keisuke KAWANA, Yukio KAMIYAMA, Kazuhiro IWATA
  • Publication number: 20150170573
    Abstract: A scanning line driving device drives scanning lines in a display unit including data lines each connected to a plurality of pixels arranged in a column direction and the scanning lines each connected to a plurality of pixels arranged in a row direction, the pixels arranged at respective intersections of the data lines and the scanning lines. The device is configured to sequentially keep each of the scanning lines in a selected state pursuant to a predetermined order and output a scanning line drive signal, which is set to a low level in a high-luminance display drive and to a high level in a low-luminance display drive, to all the scanning lines during a blanking period between a period in which one scanning line is kept selected and a period in which a next scanning line is kept selected.
    Type: Application
    Filed: December 12, 2014
    Publication date: June 18, 2015
    Inventors: Terukazu SUGIMOTO, Keisuke KAWANA