| 摘要 |
<p>A liquid crystal display device having output buffers (16-1, ..., 16-n) corresponding to column lines (20-1, ..., 20-n), comprises analog switches (18-1, ..., 18-n) provided between output ends of the output buffers (16-1, ..., 16-n) and the column lines (20-1, ..., 20-n) respectively, and a switch controller (19) for on-off controlling the analog switches (18-1, ..., 18-n). A DA converter (15) is provided in the preceding stage of the output buffers (16-1, ..., 16-n), and the switch controller (19) turns off the analog switches (18-1, ..., 18-n) during a DA conversion period of the DA converter (15) or during a precharge period prior to DA conversion, and turns on the analog switches (18-1, ..., 18-n) during a predetermined period other than such periods. <IMAGE></p> |
