Patent ID: 7663422

Claim:
A source driving circuit, comprising: a level shifter comprising: a first transistor connected between a first output node and a reference node, and controlled by a first input signal; a second transistor connected between a second output node and the reference node, and controlled by a second input signal, which is an inverse signal of the first input signal; a third transistor connected between the first output node and a power node, and controlled by an signal of the second output node; a fourth transistor connected between the second output node and the power node, and controlled by an signal of the first output node; and a fifth transistor connected between the power node and a power supply, and the fifth transistor is turned off by a control signal while the first input signal and the second input signal are in a transition period in which the first input signal changes from a logic high to a logic low or the first input signal changes from a logic low to a logic high; and a digital-to-analog converter comprising a switch array, wherein the switch array receives output signals from the first output node and the second output node of the level shifter to generate an analog voltage signal.