Patent ID: 8279156

Claim:
An output amplifier of a source driver driving a pixel circuit of a panel, the output amplifier comprising: an amplifier circuit comprising an inverting terminal for providing a inverted signal, and comprising a non-inverting terminal for providing a non-inverted signal, wherein the amplifier circuit is used for amplifying an input pixel signal to generate the inverted signal and the non-inverted signal; an output stage circuit comprising a first output terminal for passing a supply voltage from a supply terminal or passing a ground voltage from a ground terminal to the pixel circuit according to the inverted signal and the non-inverted signal; a first switch transistor having a source and a body both electrically connected to the supply terminal, and having a drain electrically connected to the output stage circuit, wherein the first switch transistor passes or blocks the supply voltage according to a high impedance signal; and a second switch transistor having a source and a body both electrically connected to the ground terminal, and having a drain electrically connected to the output stage circuit, wherein the second switch transistor passes or blocks the ground voltage according to an inverted high impedance signal.