Patents by Inventor Chun-Fu Wang

Chun-Fu Wang 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).

  • Patent number: 6717566
    Abstract: The present invention provides a driving circuit and the driving method for driving gate control lines G—1 . . . G_N. The gate control lines G—1 . . . G_N are evenly divided into L groups. The driving circuit comprises a gate line control logic circuit, a first level shifter module, a second level shifter module and a multipliexer. The first level shifter module is controlled by the gate line control logic circuit, and scans the driving lines D—1 . . . D_K in each time slot to drive the driving lines one by one, wherein L*K=N. The second level shifter module is controlled by the gate line control logic circuit, and scans the L groups in each time frame to select the L groups one by one. The multiplexer is used to connect the driving lines D—1 . . . D_K to the gate control lines of a selected group, and connect the gate control lines of unselected groups to a predetermined power line.
    Type: Grant
    Filed: May 9, 2001
    Date of Patent: April 6, 2004
    Assignee: Hannstar Display Corp.
    Inventor: Chun-Fu Wang
  • Publication number: 20020080108
    Abstract: The present invention provides a driving circuit and the driving method for driving gate control lines G_1 . . . G_N. The gate control lines G_1 . . . G_N are evenly divided into L groups. The driving circuit comprises a gate line control logic circuit, a first level shifter module, a second level shifter module and a multipliexer. The first level shifter module is controlled by the gate line control logic circuit, and scans the driving lines D_1 . . . D_K in each time slot to drive the driving lines one by one, wherein L*K=N. The second level shifter module is controlled by the gate line control logic circuit, and scans the L groups in each time frame to select the L groups one by one. The multiplexer is used to connect the driving lines D_1 . . . D_K to the gate control lines of a selected group, and connect the gate control lines of unselected groups to a predetermined power line.
    Type: Application
    Filed: May 9, 2001
    Publication date: June 27, 2002
    Applicant: Hannstar Display Corp.
    Inventor: Chun-Fu Wang