Patent ID: 8773346

Claim:
A driving device for a liquid crystal display, the driving device comprising: a shift register; a reception terminal for receiving a first clock signal; a noise elimination circuit, coupled to the reception terminal, for eliminating noises of the first clock signal and delaying the first clock signal for a preset time to generate a second clock signal, the noise elimination circuit comprising: a filtering circuit, coupled to the reception terminal, for performing a filtering operation on the first clock signal to eliminate the noises of the first clock signal; and a comparator, coupled to the filtering circuit, for comparing a filtering result of the first clock signal with a threshold voltage to generate the second clock signal, wherein the second clock signal is logic high when the filtering result of the first clock signal is greater than the threshold voltage, and is logic low when the filtering result of the first clock is smaller than the threshold voltage; and a control signal generation circuit, coupled to the reception terminal, the noise elimination circuit and the shift register, for generating a first control signal and a second control signal according to the first clock signal and the second clock signal to control the shift register.