Patent ID: 7518588

Claim:
A source driver with the charge recycling function suitable for a panel displaying device to drive a display array unit, the source driver comprising: a source driving circuit, coupled to a plurality of data lines, outputting a plurality of data signals; a plurality of polarization switch circuits, coupled to the source driving circuit, the i-th plurality of polarization switch circuit is used to switch the (2*i−1)-th and (2*i)-th data signals to the (2*i−1)-th and (2*i)-th data lines respectively, or to the (2*i)-th and (2*i−1)-th data lines respectively according to a polarization signal and an inversed polarization signal, wherein i is a natural number; a circuit for recycling charges, coupled between the display array unit and the polarization switch circuit, comprising a plurality of switches, a first and second capacitors, so as to form a charge recycling path and to transmit the data signals for driving the display array unit, wherein the switches are controlled by a recycling control signal, a charge control signal and a inversed charge control signal; wherein, when the recycling control signal, the charge control signal and the inversed charge control signal control the switches to make the first capacitor coupled to the (2*i−1)-th data line through the switches, the second capacitor is coupled to the (2*i)-th data line through the switches; and when the recycling control signal, the charge control signal and the inversed charge control signal control the switches to make the first capacitor coupled to the (2*i)-th data line through the switches, the second capacitor is coupled to the (2*i−1)-th data line through the switches.