Shift register and driving method therefor, gate driver on array circuit and display device

A gate driver on array (GOA) circuit, comprising a plurality of shift registers, wherein each shift register comprises a pulling up (PU) node, a capacitor and an output control module, wherein the output control module comprises a first thin film transistor, a control end of the first thin film transistor is connected to a first end of the capacitor via the PU node, a first clock signal is input to a first end of the first thin film transistor, and a second end of the first thin film transistor is connected to a second end of the capacitor;

• and
• wherein the shift register further comprises a pre-charging module, configured to receive a signal from the PU node and output, before the shift register outputs a valid voltage, a pre-charging voltage having an identical polarity to the valid voltage to an output terminal of the shift register.

A method for driving a shift register, wherein the shift register comprises a pulling up (PU) node, a capacitor and an output control module, wherein the output control module comprises a first thin film transistor, a control end of the first thin film transistor is connected to a first end of the capacitor via the PU node, a first clock signal is input to a first end of the first thin film transistor, and a second end of the first thin film transistor is connected to a second end of the capacitor;

• and
• the shift register further comprises a pre-charging module, configured to receive a signal from the PU node and output, before the shift register outputs a valid voltage, a pre-charging voltage having an identical polarity to the valid voltage to an output terminal of the shift register;
• wherein the method comprises a step of outputting, by the pre-charging module, the pre-charging voltage having the identical polarity to the valid voltage to the output terminal of the shift register, in a pulling-up stage before the shift register outputs the valid voltage.