Patent ID: 7672419

Claim:
A shift register comprising: an input end for receiving a first driving signal; an output end for outputting a second driving signal; an enabling controller electrically coupled to the input end of the shift register for outputting an enabling signal when receiving the first driving signal; wherein the enabling signal is an inverse signal of the first driving signal; a pre-charge circuit comprising: an input end electrically coupled to the input end of the shift register for receiving the first driving signal; an output end for outputting a pre-charge signal; a receiving module comprising: an input end electrically coupled to the input end of the pre-charge circuit for receiving the first driving signal; a control end for receiving a control signal; and an output end for transmitting the first driving signal when the receiving module receives the control signal; an enabling module electrically coupled between the output end of the receiving module and the output end of the pre-charge circuit for outputting the pre-charge signal when receiving the first driving signal; and a reset module electrically coupled between the output end of the receiving module and the enabling module for receiving a reset signal in order to reset the pre-charge signal; a first switch comprising: a first end for receiving a clock signal; a control end electrically coupled to the output end of the pre-charge circuit for receiving the pre-charge signal; and a second end electrically coupled to the output end of the shift register for coupling to the first end of the first switch when the first switch receives the pre-charge signal; a second switch comprising: a first end electrically coupled to a first voltage source; a control end electrically coupled to an output end of the enabling controller for receiving the enabling signal; and a second end electrically coupled to the output end of the shift register for coupling to the first end of the second switch when the second switch receives the enabling signal; and a third switch comprising: a first end electrically coupled to the output end of the pre-charge circuit; a control end electrically coupled to the output end of the enabling controller for receiving the enabling signal; and a second end electrically coupled to the output end of the shift register for coupling to the first end of the third switch when the third switch receives the enabling signal.