GATE DRIVE CIRCUIT

摘要

A gate drive circuit is disclosed. The gate drive circuit comprises multi-stage of GOA drive unit, and each stage of GOA drive unit comprises a signal afferent unit, used for outputting a pull-down control signal; an output unit, used for outputting a first gate signal and a second gate signal; a pull-up control unit, used for outputting a pull-up control signal; and a pull-up sustaining unit, used for pulling up an electric potential of the control end of the output unit to an electric potential of the direct-current power supply according to the pull-up control signal, so that the first gate signal and the second gate signal are maintained in a high-level state.

主权项

1. A gate drive circuit, comprising a multi-stage GOA drive unit, wherein each stage of GOA drive unit comprises:
a signal afferent unit, used for outputting a pull-down control signal according to an afferent signal; an output unit, wherein a control end thereof is coupled with an output end of the signal afferent unit so as to pull down an electric potential of an output end of a first gate signal according to the pull-down control signal and a first clock signal and an electric potential of an output end of a second gate signal according to the pull-down control signal and a second clock signal, so that the stage of GOA drive unit outputs a first gate signal and a second gate signal, said first gate signal and said second gate signal being scanning signals of two adjacent gate lines; a pull-up control unit, used for outputting a pull-up control signal according to a pull-up signal; and a pull-up sustaining unit, coupled among an output end of the pull-up control unit, the control end of the output unit, the output end of the second gate signal, and a direct-current power supply, and used for pulling up an electric potential of the control end of the output unit to an electric potential of the direct-current power supply according to the pull-up control signal, so that the first gate signal and the second gate signal are both maintained in a high-level state.