Patent ID: 8681086

Claim:
A data driver for correspondingly driving a plurality of data lines of a display panel according to a plurality of pixel data, the pixel data comprising a first pixel datum and a second pixel datum, the data driver comprising: a first data processing circuit and a second data processing circuit for processing the pixel data, wherein the first data processing circuit provides a positive pixel voltage according to the first pixel datum, and the second data processing circuit provides a negative pixel voltage according to the second pixel datum; and a multiplexer circuit comprising a plurality of multiplexer units, each of which comprises: a first input terminal and a second input terminal for respectively receiving the positive pixel voltage and the negative pixel voltage; an output terminal coupled to one of the data lines; a first switching device having a first switch, a second switch and a third switch, wherein the first and second switches are serially coupled between the first input terminal and the output terminal, and a voltage level of a first node between the first and second switches is controlled via the third switch; and a second switching device having a fourth switch, a fifth switch and a sixth switch, wherein the fourth and fifth switches are serially coupled between the second input terminal and the output terminal, and a voltage level of a second node between the fourth and fifth switches is controlled via the sixth switch; and a body voltage switching circuit for providing a first body voltage and a second body voltage to each of the first switching device and the second switching device according to a first switching signal; wherein the first body voltage is simultaneously applied to the first switching device and the second switching device, and the second body voltage is simultaneously applied to the first switching device and the second switching device second body voltage.