Patent ID: 6753836
Filing Date: 2004-06-22
Classification: G09G

Abstract:
A liquid crystal device (LCD) driver circuit comprising:first through N-th input pads for respectively receiving first through N-th voltages, the first through N-th voltages having different voltage levels and being externally applied to the LCD driver circuit, and the N being an integer greater than one; first through N-th electrostatic discharge (ESD) protection units respectively connected to the first through N-th input pads, for forming a discharge path when an electrostatic pulse is respectively applied through any of the first through N-th input pads; and an output driver having first through N-th resistors, the first through N-th resistors for respectively receiving the first through N-th voltages input through the first through N-th input pads, and first through N-th voltage transferring units for respectively transferring the first through N-th voltages, respectively, to a first node in response to predetermined first through N-th control signals and the output driver for generating a driving voltage for driving an LCD from each of the first through N-th voltages transmitted through the first through N-th voltage transferring units, respectively; wherein the first through N-th resistors reduce a current flowing into the output driver when the electrostatic pulse is applied.