| 摘要 |
PROBLEM TO BE SOLVED: To improve stability in sampling analog video signals by utilizing a limited wiring space effectively. SOLUTION: A source driver circuit comprises: a sample hold circuit 22 which sequentially samples the analog video signals as pixel shades and holds two or more sampled values in parallel; and an output buffer circuit 23 which amplifies the two or more sample values held by this sample hold circuit 22 to a pixel voltage suitable for a display panel and outputs it to two or more source lines X. Especially, the sample hold circuit 22 includes a capacitor SC which is connected to a ground terminal AVSS2 prepared independently of the output buffer circuit 23 and is charged to the voltage level of the analog video signal on the basis of the potential of this ground terminal AVSS2. COPYRIGHT: (C)2007,JPO&INPIT
|
