Patent ID: 7724233

Claim:
A driving circuit of a liquid crystal display (LCD), comprising: a system driver; a power supply providing a voltage to the system driver; and a control device configured for generating a control signal, a data signal, and a backlight driving signal, and applying the control signal, the data signal and the backlight driving signal to the system driver; wherein the system driver is configured for driving an LCD panel and a backlight of the LCD according to the control signal, the data signal and the backlight driving signal, the system driver comprising: a gate driver configured for scanning the LCD panel; an analog/digital transform circuit configured for driving the backlight; a regulator circuit configured for supplying voltages to the gate driver and the analog/digital transform circuit; a booster circuit configured for receiving the voltage from the power supply and driving the gate driver and the regulator circuit; and a system interface circuit configured for receiving the control signal and data signal and providing the control signal and data signal to the gate driver, the booster circuit, and the regulator circuit, and receiving the backlight driving signal and providing the backlight driving signal to the analog/digital transform circuit.