Patent ID: 7956834

Claim:
A liquid crystal display comprising: a moving image detector which reads previous frame data from a frame memory, reads current frame data from an input signal and compares the previous frame data to the current frame data to detect a moving pattern; a gray-scale difference calculator which calculates a gray-scale difference in the moving pattern detected by the moving image detector to discriminate a boundary of the moving pattern from an inside of the moving pattern; and an output processor which generates an over-driving voltage for over-driving pixels corresponding to pixels inside the moving pattern, and concurrently controls the over-driving voltage of the pixels corresponding to pixels inside the moving pattern, so as to be decreased for pixels close to a boundary of the moving pattern and to be increased for pixels distant from the boundary of the moving pattern, wherein the controlled over-driving voltage is a voltage applied to a corresponding pixel which is higher than a normal voltage applied to the corresponding pixel.