A Novel Driving Method for Fast Switching of a π Cell for Display of Moving Pictures

We propose a novel driving method which is very efficient for the display of moving pictures on a π cell. In the proposed driving method, each scan pulse is divided into two parts for fast switching unlike the conventional active matrix driving method that uses one scan pulse for each frame. By overdriving or underdriving the π cell using an appropriate data voltage during the first scan time and applying a desired data voltage to the cell during the second scan time, we can achieve fast switching between all gray levels within the time between the first and second scan pulse.