Patents by Inventor Yuhji Asoh

Yuhji Asoh 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).

  • Data signal line driving method, data signal line driving circuit, and display device using the same
    Patent number: 7652652
    Abstract: The data signal line driving circuit of the present invention is arranged so that data signal line groups, each of which is made up of two data signal lines sequentially disposed, are connected to two video signal lines, each of which allows a two-phased video signal to be forwarded. A shift register SR, a drive switching circuit, and a waveform shaping circuit, that constitute a video signal fetching section, collect the data signal line groups via the two video signal lines as a single block. At this time, the data signal lines are respectively driven so as to fetch the video signal from the video signal lines into the data signal lines of the data signal line groups in each block. Thus, in performing multiphase development, it is possible to provide the data signal line driving circuit which can reduce power consumption in low resolution driving compared with a case of high resolution driving.
    Type: Grant
    Filed: November 12, 2003
    Date of Patent: January 26, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kazuhiro Maeda, Sachio Tsujino, Hajime Washio, Yuhji Asoh
  • Data signal line driving method, data signal line driving circuit, and display device using the same
    Publication number: 20040130520
    Abstract: The data signal line driving circuit of the present invention is arranged so that data signal line groups, each of which is made up of two data signal lines sequentially disposed, are connected to two video signal lines, each of which allows a two-phased video signal to be forwarded. A shift resister SR, a drive switching circuit, and a waveform shaping circuit, that constitute a video signal fetching section, collect the data signal line groups via the two video signal lines as a single block. At this time, the data signal lines are respectively driven so as to fetch the video signal from the video signal lines into the data signal lines of the data signal line groups in each block. Thus, in performing multiphase development, it is possible to provide the data signal line driving circuit which can reduce power consumption in low resolution driving compared with a case of high resolution driving.
    Type: Application
    Filed: November 12, 2003
    Publication date: July 8, 2004
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Kazuhiro Maeda, Sachio Tsujino, Hajime Washio, Yuhji Asoh