| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To suppress an influence of noise generated at an electrode for detection with simple constitution. <P>SOLUTION: Liquid crystal 30 is sealed in a gap between a first substrate 10 and a second substrate 20. An electrode 16 for detection for detecting contact in response to variation in electrostatic capacity is formed on the surface on the opposite side from the liquid crystal 30 across the first substrate 10. A pixel circuit P has a liquid crystal capacitor CL including a pixel electrode 22, an opposite electrode 14, and liquid crystal 30 between the both, and a storage capacitor CS including a first electrode el and a second electrode e2 connected to the pixel electrode 22. The pixel electrode 22 and a signal line 45 are electrically connected in a selection period H, and insulated the selection period H later. A potential VD corresponding to positive-polarity writing or negative-polarity writing is supplied to the signal line 45 in a selection period H, and the potential of the first electrode e1 rises a selection period H wherein the positive-polarity writing is performed later and falls a selection period H wherein the negative-polarity writing is performed later. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
