Patent ID: 7133015

Claim:
A liquid crystal display device, comprising: a liquid crystal panel in which a plurality of signal lines for transmitting display pixel data and a plurality of scanning lines for transmitting control signals are laid out vertically and horizontally, and pixel electrodes are arranged at intersections of the signal lines and the scanning lines via switching elements, wherein the device has a hold control function in which an image to be displayed is output in one entire frame period, and an impulse control function in which an image to be displayed is output in a predetermined period within the one frame period and is not output during a remaining period within the one frame period, wherein said hold control is carried out when said display image is shown with all of the pixel electrodes and is a still image, wherein said impulse control is carried out when said display image is shown with all of the pixel electrodes and is a moving image, wherein motion compensation is carried out by using DCT (Discrete Cosine Transform), and wherein said display image is judged to be said moving image and said hold control is switched to said impulse control when compressed image information includes vector information indicating image motion.