GOA unit and method of driving the same, GOA circuit and display apparatus

A method of driving a gate driver-on-array (GOA) unit, the GOA unit comprising a pulling-up circuit, a pulling-down circuit and an output holding circuit, the pulling-up circuit, the pulling-down circuit and the output holding circuit being coupled with an output terminal of the GOA unit;

• the pulling-up circuit and the output holding circuit being coupled with a pulling-up node;
• the pulling-up circuit and the pulling-down circuit being coupled with a pulling-down node;
• the pulling-down circuit being coupled with a low voltage level terminal and a first voltage level terminal;
• the pulling-up circuit being coupled with a high voltage level terminal, the first voltage level terminal and a second voltage level terminal;
• and the output holding circuit being coupled with the second voltage level terminal, the method comprising:
• in a pulling-up stage, outputting, by the pulling-up circuit under control of a trigger signal, a first control signal and a second control signal, a gate scanning signal from the output terminal of the GOA unit;
• in an output holding stage, holding, by the output holding circuit under control of the trigger signal, the first control signal and the second control signal, the gate scanning signal output from the output terminal;
• in a pulling-down stage, resetting the gate scanning signal by the pulling-down circuit under control of the trigger signal, the first control signal and the second control signal;
• and
• in a pulling-down holding stage, holding, by the pulling-down circuit under control of the trigger signal, the first control signal and the second control signal, the gate scanning signal in a reset state for a set time period.