Patent ID: 7015890

Claim:
A liquid crystal display, comprising: a data driver for outputting an image signal; a gate driver for sequentially outputting a scanning signal; a liquid crystal display panel including a plurality of pixels for displaying an image, the plurality of pixel having a switching element for controlling the image signal in response to the scanning signal, a liquid crystal capacitor driven by a voltage difference between the image signal received at one terminal thereof and a common electrode voltage received at another terminal thereof, and a storage capacitor for accumulating the charge of image signal received at the one terminal thereof when the switching element is turned on, and applying the accumulated image signal to the liquid crystal capacitor via the one terminal thereof when the switching element is turned off; a distortion detector for detecting the common electrode voltage applied to the other terminal of the liquid crystal capacitor and outputting a common electrode distortion voltage; and an offset voltage generator for outputting an offset voltage to change a rate of charge of the storage capacitor based on the common electrode distortion voltage, wherein the offset voltage generator comprises: an OP amplifier for receiving the common electrode voltage at a non-inverting terminal thereof and the common electrode distortion voltage at an inverting terminal thereof, and outputting an output voltage at an output terminal thereof to a DC component remover; and a DC component remover for removing a DC component of the output voltage and outputting an AC offset voltage.