Patent ID: 8599123
Filing Date: 2013-12-03
Classification: G09G

Abstract:
1. A drive circuit for a liquid crystal display, the liquid crystal display comprising a liquid crystal panel and a power circuit for providing a power supply voltage to the drive circuit; the drive circuit comprising: a gate driver for providing scan signals to the liquid crystal panel; a wave signal generation circuit for generating wave signals and sending the wave signals to the gate driver; and a timing control circuit for providing timing control signals to the gate driver and the wave signal generation circuit; wherein the wave signal generation circuit generates a control signal according to the timing control signal, and generates a wave signal according to the control signal; the gate driver generates the scan signals according to the timing control signal and the wave signal; wherein before the voltage of the scan signal changes from a maximum voltage to a minimum voltage, the voltage of the scan signal decreases to a middle voltage that is greater than the minimum voltage and less than the maximum voltage during an invariable fall time of the scan signal; wherein the control signal comprises a plurality of enable pulses, and wherein the pulse width of the enable pulse increases as the frequency of the timing control signal increases.