Patent ID: 7920668

Claim:
A system for displaying images, comprising: a dynamic shift register, comprising: a sampling unit, coupled to an incoming signal and a first input terminal of the dynamic shift register, and operative to sample the incoming signal according to a first input signal received by the first input terminal to generate a sampled value; a holding unit, coupled to the sampling unit, and operative to hold the sampled value; a first logic circuit, coupled to a second input terminal of the dynamic shift register, the holding unit and an output terminal of the dynamic shift register, and operative to generate an output signal outputted at the output terminal according to the held sampled value and a second input signal inputted into the second input terminal, wherein the first logic circuit comprises: a first switch, coupled to the sampled value, the second input terminal, and the output terminal, and operative to control when the second input signal is passed to the output terminal according to an inverted signal of the sampled value; and a second switch, coupled to the output terminal, and operative to selectively pass a voltage level to the output terminal according to the sampled value; wherein when the sampled value is at a first level, the second switch is turned off and the first switch is turned on, allowing the second input signal to pass through; and when the sampled value is at a second level, the first switch is turned off and the second switch is turned on, allowing the voltage level to pass through; and a second logic circuit, coupled to a third input terminal of the dynamic shift register and the sampling unit, and operative to receive a third input signal and level-shift the third input signal to generate the incoming signal; wherein the second logic circuit comprises an inverter operative to level-shift the third input signal to generate the incoming signal.