RESIDUAL IMAGE REMOVING METHOD AND LIQUID CRYSTAL DISPLAY USING SAME

摘要

A liquid crystal display includes a first common voltage regulator, a second common voltage regulator, a switching circuit, and a sequential controller. The first common voltage regulator regulates a common voltage to minimize a flicker during a switching mode between a white frame and a black frame and set this common voltage as a first common voltage. The second common voltage regulator regulates a common voltage to minimize a flicker during a switching mode between a gray frame and a black frame and set this common voltage as a second common voltage. The sequential controller inserts predetermined number of abnormal frames every predetermined number of normal frames according to a preset scan frequency. The switching circuit is correspondingly connected to the first common voltage regulator and a second common voltage regulator to selectively output the first common voltage during the normal frames and the second common voltage during the abnormal frames.

主权项

1. A liquid crystal display, comprising:
a first common voltage regulator regulating a common voltage to minimize a flicker during a switching mode between a white frame and a black frame and setting this common voltage as a first common voltage; a second common voltage regulator regulating the common voltage to minimize a flicker during a switching mode between a predetermined grays frame and a black frame and setting this common voltage as a second common voltage; a sequential controller inserting predetermined number of abnormal frames every predetermined number of normal frames according to a preset scan frequency; and a switching circuit correspondingly connected to the first common voltage regulator and a second common voltage regulator; wherein the switching circuit outputs the first common voltage during the normal frames and outputs the second common voltage during the abnormal frames.