Shift register unit, method of driving shift register unit, gate driving circuit and display device

A shift register unit, comprising an input circuit, a first pull-up node reset circuit, and an output circuit;

• wherein the input circuit comprises an input terminal, and is configured to control an level of a pull-up node to a first level in response to an input signal of the input terminal, and thereafter control a level of a first node to a second level under control of a level of a pull-down node, in which the first node is in a current path for controlling the level of the pull-up node;
• the first pull-up node reset circuit is configured to reset the pull-up node in response to a first reset signal;
• and
• the output circuit is configured to output a clock signal to an output terminal under control of the level of the pull-up node;
• the input circuit comprises a first input sub-circuit, a second input sub-circuit, and a first node control sub-circuit;
• the first input sub-circuit is configured to control the level of the first node to the first level in response to the input signal;
• the second input sub-circuit is configured to control the level of the pull-up node to the first level in response to the input signal;
• and
• the first node control sub-circuit is configured to control the level of the first node to the second level under control of the level of the pull-down node.