| 摘要 |
<p>A simple speed-doubling processing circuit (60) outputs a video signal (V1) repeatedly twice at a double speed of a frame unit. A time-division gradation processing circuit (50) subjects the video signal to a gradation level conversion for distributing the brightness of one frame period into two first and second halves of sub-frame periods. An overshoot processing circuit (40) subjects the video signal to a gradation level conversion for emphasizing the time change of the signal. A drive circuit (20) drives liquid-crystal display elements (31) with a video signal (V2) processed by those three circuits. A frame interpolation processing circuit may be added to the circuit constitution, and the simple speed-doubling processing circuit (60) may also be replaced by the frame interpolation processing circuit. As a result, a motion picture display performance is improved while supplementing the shortage of the responding speed of the display elements.</p> |
