Patent ID: 8305326

Claim:
A gate driving circuit including a plurality of dependently coupled stages, wherein one or more of the stages comprises: a pull-up unit for pulling up a current gate signal in response to a first clock signal during a first period in one frame; a pull-up driver coupled to the pull-up unit, the pull-up driver receiving a carry signal from one of a previous stage and turning on the pull-up unit; a pull down unit for receiving a gate signal from a next stage, the pull down unit discharging the current gate signal to an off voltage level, and turning off the pull-up unit; a holder for holding the current gate signal at the off voltage level; an inverter for turning on or turning off the holder in response to the first clock signal; and a ripple preventer having an output terminal coupled to an input terminal of the inverter and preventing noise from transmitting to the inverter; wherein the ripple preventer comprises a ripple preventing diode comprised of a transistor having a source terminal and a gate terminal both directly connected to an output terminal of the pull-up unit, and a drain terminal coupled to an input terminal of the inverter.