Patents by Inventor Chiao-Chen YU

Chiao-Chen YU 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 circuit, display panel and display sensing panel
    Patent number: 11131582
    Abstract: An optical sensing circuit includes a first, a second, and a third optical sensing element and a sampling circuit. The first sensing element provides a first current from a first node to a second node according to an ambient light and a sensing signal. The second optical sensing element drains a second current from the second node to the first node according to the ambient light and the sensing signal. The third optical sensing element is coupled between the first node and the second node. The third optical sensing element receives a first color light, and transmits the first current to the second node or transmits the second current to the first node according to the first color light. The sampling circuit is turned on according to the sampling signal to output a detection signal based on the voltage level of the second node.
    Type: Grant
    Filed: April 9, 2020
    Date of Patent: September 28, 2021
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Bo-Shiang Tzeng, Ching-Lang Hung, Chia-Wei Kuo, Chiao-Chen Yu
  • OPTICAL SENSING CIRCUIT, DISPLAY PANEL AND DISPLAY SENSING PANEL
    Publication number: 20200326234
    Abstract: An optical sensing circuit includes a first, a second, and a third optical sensing element and a sampling circuit. The first sensing element provides a first current from a first node to a second node according to an ambient light and a sensing signal. The second optical sensing element drains a second current from the second node to the first node according to the ambient light and the sensing signal. The third optical sensing element is coupled between the first node and the second node. The third optical sensing element receives a first color light, and transmits the first current to the second node or transmits the second current to the first node according to the first color light. The sampling circuit is turned on according to the sampling signal to output a detection signal based on the voltage level of the second node.
    Type: Application
    Filed: April 9, 2020
    Publication date: October 15, 2020
    Inventors: Bo-Shiang TZENG, Ching-Lang HUNG, Chia-Wei KUO, Chiao-Chen YU