Patents by Inventor Yung-Da CHEN

Yung-Da CHEN 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).

  • Optical sensing device having plural sensing units each receives scanning signals with different voltage levels
    Patent number: 9322710
    Abstract: An optical sensing device includes a plurality of scanning lines having a plurality of first scanning lines and a plurality of second scanning lines, a plurality of sensing lines, a plurality of reading lines, and a plurality of optical sensing modules electrically connected to the scanning lines. Each optical sensing module includes a first optical sensing unit and a second optical sensing unit, each of which includes a sensing unit, a charge storage unit, and a reading unit. The optical sensing module further includes a plurality of differential amplifiers electrically connected to the corresponding reading lines, for determining the difference between the reading lines, wherein the difference indicates the ambient light variation. A first transistor of the sensing unit of the first optical sensing unit is different to a first transistor of the sensing unit of the second sensing unit in channel width.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: April 26, 2016
    Assignee: AU OPTRONICS CORP.
    Inventors: Yung-Da Chen, Yueh-Hung Chung
  • OPTICAL SENSING DEVICE
    Publication number: 20140239159
    Abstract: An optical sensing device includes a plurality of scanning lines having a plurality of first scanning lines and a plurality of second scanning lines, a plurality of sensing lines, a plurality of reading lines, and a plurality of optical sensing modules electrically connected to the scanning lines. Each optical sensing module includes a first optical sensing unit and a second optical sensing unit, each of which includes a sensing unit, a charge storage unit, and a reading unit. The optical sensing module further includes a plurality of differential amplifiers electrically connected to the corresponding reading lines, for determining the difference between the reading lines, wherein the difference indicates the ambient light variation. A first transistor of the sensing unit of the first optical sensing unit is different to a first transistor of the sensing unit of the second sensing unit in channel width.
    Type: Application
    Filed: September 4, 2013
    Publication date: August 28, 2014
    Applicant: AU Optronics Corp.
    Inventors: Yung-Da CHEN, Yueh-Hung CHUNG