Patents Assigned to Himax Technologies Limted
  • Source driving circuit for preventing gamma coupling
    Patent number: 7663422
    Abstract: During transition, level shifters in a source driver output logic high signals to PMOS DACs and output logic low signals to NMOS DACs for shutting down current paths in the PMOS DACs and in the NMOS DACs. Therefore, during transition, the PMOS DACs and the NMOS DACs are at high-impedance stage for preventing gamma coupling effect.
    Type: Grant
    Filed: September 2, 2008
    Date of Patent: February 16, 2010
    Assignee: Himax Technologies Limted
    Inventor: Ching-Chung Lee