Patent ID: 7202864
Filing Date: 2007-04-10
Classification: G02F,G09G

Abstract:
1. A method of driving a liquid crystal display that includes a normal driving interval for providing normal driving of the liquid crystal display with a real-data signal after a reset period, wherein the liquid crystal display includes a liquid crystal between pixel and common electrodes in which the liquid crystal is transitioned from a splay state into a bend state at a voltage difference between the pixel and common electrodes greater than a transition voltage, said method comprising the steps of: setting a voltage difference between the pixel and common electrodes during the reset period to be larger than an average voltage of the real-data signal in said normal driving interval using a data driver that drives the pixels during the normal driving interval; applying said voltage difference across the liquid crystal such that the liquid crystal is transitioned from the splay state into the bend state during the reset period; and driving the liquid crystal from the bend state after the reset period in the normal driving interval, wherein said step of setting a voltage difference includes switching the common electrode to a gate high voltage, which is greater than a maximum voltage of the real-data signal during the normal driving interval, and switching a reference voltage for driving the pixel electrode to a low-level common voltage, which is less than the maximum voltage of the real-data signal during the normal driving interval.