| 摘要 |
When a driving circuit for a liquid-crystal display apparatus, especially a switching section and an input-voltage conversion circuit for an analog operation, is formed of circuit devices having large variations in characteristics, such as thin-film transistors, these device-characteristic variations adversely affect circuit operations, and a video-signal switching section may reduce image quality. In the input-voltage conversion circuit, circuit malfunction may occur. In an active-matrix liquid-crystal display apparatus, thin-film transistors having a gate length of 2L and a gate width of 2W are used as circuit devices constituting a driving circuit for driving pixels, especially a circuit portion handling an analog signal, where L indicates the shortest gate length determined from the dielectric strength and W indicates the gate width determined by a ratio of W/L based on the purpose of use according to the shortest gate length L.
|
