Patent ID: 7791582
Filing Date: 2010-09-07
Classification: G09G,G11C,H03K

Abstract:
1. A shift register capable of turning on a feedback register, comprising: a signal generating circuit for generating an output signal at an output end of the shift register according to a first clock signal and a driving signal while the signal generating circuit is being turned on; a driving circuit, electrically coupled to the signal generating circuit, for generating the driving signal to control the signal generating circuit according to an input signal received from an output end of a previous stage shift register by an input end of the shift register; a feedback circuit, comprising a gate electrode electrically coupled to an output end of a next stage shift register for receiving an output signal of the next stage shift register, a drain electrode electrically connected to a gate electrode of a signal generating circuit of the next stage shift register and a source electrode of a driving circuit of the next stage shift register for receiving a driving signal of the next stage shift register, and a source electrode for transmitting a control signal while the feedback circuit is being turned on by the output signal outputted from the output end of the next stage shift register, wherein the control signal is the driving signal generated by the driving circuit of the next stage shift register; and a control switch, comprising a drain electrode electrically coupled to the signal generating circuit, and a gate electrode electrically connected to the source electrode of the feedback circuit, for directly receiving the control signal from the source electrode of the feedback circuit for turning off the signal generating circuit while the control switch is being turned on by the control signal transmitted from the feedback circuit.