Patents by Inventor Haojuan DAI

Haojuan DAI 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).

  • Panel defect detection method and a display driver apparatus incorporating the same
    Patent number: 10984691
    Abstract: A method and a display driver apparatus for detecting panel defect on an electronic paper display (EPD) are provided. A sense voltage from the voltage for common (VCOM) electrode of the EPD is obtained and compared with an upper reference voltage and a lower reference voltage. As the sense voltage is proportional to a total capacitance of the plural display electrode capacitors on the EPD, a defective panel with capacitance abnormality or opened circuits can be identified.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: April 20, 2021
    Assignee: Solomon Systech (Shenzhen) Limited
    Inventors: Choi Wing Siu, Wing Chun Chan, Ho Ming Chan, Haojuan Dai, Wei Gong
  • Panel Defect Detection Method and a Display Driver Apparatus Incorporating the Same
    Publication number: 20190304350
    Abstract: A method and a display driver apparatus for detecting panel defect on a non-volatile type display panel are disclosed. The present invention obtains a sense voltage from the VCOM electrode or the source lines of the display panel, comparing the sense voltage with an upper reference voltage and a lower reference voltage, and determining a condition of the display panel. As the sense voltage is proportional to a total capacitance of the plural display electrode capacitors on the display panel, a defective panel with abnormal capacitance can be identified.
    Type: Application
    Filed: June 14, 2018
    Publication date: October 3, 2019
    Inventors: Choi Wing SIU, Wing Chun CHAN, Ho Ming CHAN, Haojuan DAI, Wei GONG