| 摘要 |
<p>To reduce block ghosts during a phase expansion driving in which a plurality of data lines are blocked to sample image signals in bulk. In the phase expansion driving system, correction data (Db) is obtained by adding the average value of gradation levels that have changed from a block immediately preceding a block of interest when the block of interest is selected to the average value of gradation levels that have changed from a block second immediately preceding the block of interest when the immediately preceding block is selected. At this time, the former average value is weighted heavier than the latter one. Then, the correction data (Db) is added to each of the video data (Vd1d-Vd6d) of the pixels belonging to the block of interest to produce video data (Vd1e-Vd6e) as corrected, which is then subjected to an analog conversion and to a polarity inversion and then supplied to an image signal line of an electrooptic panel.</p> |
