| 摘要 |
<p>PURPOSE:To nearly eliminate a display flicker due to variance in liquid crystal cell thickness and variance in parasitic capacity by using a transfer gate of CMS constitution as an active element and equalizing the size ratio of an n channel transistor (TR) and a p channel TR. CONSTITUTION:On a c-Si wafer, the CMOS transfer gate is formed as the active element by combining an n channel TR 101 and a p channel TR 102 for each picture element by the CMOS technique of a normal silicon LSI process. The n channel TR 101 and p channel TR 102 of this CMOS transfer gate are equalized in size, i.e. channel length and channel width. When the channel length and channel width are equalized, it is equivalent that both the channel TRs 101 and 102 are equal in source-gate parasitic capacity. Consequently, the display flicker due to variance in liquid crystal cell thickness and variance in parasitic capacity is almost eliminated.</p> |
