Patents by Inventor Ching-Hua Chuang

Ching-Hua Chuang 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).

  • Touch panel and method of reducing noise coupled by a common voltage of a touch panel
    Patent number: 8508503
    Abstract: A touch panel includes a touch sensor, a liquid crystal panel, and a reverse circuit. The reverse circuit receives common voltage ripples of the liquid crystal panel, and outputs reversed common voltage ripples after reversing the common voltage ripples. After the touch sensor receives the reversed common voltage ripples, the touch sensor outputs a sensing signal according to the reversed common voltage ripples.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: August 13, 2013
    Assignee: AU Optronics Corp.
    Inventors: Jian-Hong Lin, Wen-Rei Guo, Ching-Hua Chuang
  • TOUCH PANEL AND METHOD OF REDUCING NOISE COUPLED BY A COMMON VOLTAGE OF A TOUCH PANEL
    Publication number: 20120146920
    Abstract: A touch panel includes a touch sensor, a liquid crystal panel, and a reverse circuit. The reverse circuit receives common voltage ripples of the liquid crystal panel, and outputs reversed common voltage ripples after reversing the common voltage ripples. After the touch sensor receives the reversed common voltage ripples, the touch sensor outputs a sensing signal according to the reversed common voltage ripples.
    Type: Application
    Filed: March 28, 2011
    Publication date: June 14, 2012
    Inventors: Jian-Hong Lin, Wen-Rei Guo, Ching-Hua Chuang