| 摘要 |
<p>PURPOSE:To improve the luminance of a display image, while executing a coordinate detection plural times in one screen display period. CONSTITUTION:At the time of detecting the X coordinate, a voltage obtained by giving a pen pulse generated by a pulse generating circuit 13 to second gate electrodes x11-x1m is fetched in an X coordinate detection part 8, and at the time of detecting the Y coordinate, a voltage obtained by outputting a pulse for displaying and scanning a Y electrode (line) is inputted to a Y coordinate peak detecting circuit 12 from a stylus pen 10. Also, this display integrated tablet is constituted so that after the coordinate is detected by this method, scanning of only the Y electrode in a prescribed range containing the Y coordinate detected previously is executed in a Y coordinate detecting period provided after a block display period obtained by dividing an image display period, and as for the X coordinate detection, the pen pulse is outputted in each block display period.</p> |
