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

A shift register unit, comprising a first pull-up node control circuit, a second pull-up node control circuit, a pull-down node control circuit, an output pull-up circuit and an output pull-down circuit, wherein

• the first pull-up control circuit is directly connected to a first pull-up node, a first voltage end, an input end, a resetting end, a pull-down node and a second voltage end, and configured to control the first pull-up node to be electrically connected to the second voltage end under the control of an input signal applied to the input end, and control the first pull-up node to be electrically connected to the first voltage end under the control of a resetting signal from the resetting end and/or a voltage signal at the pull-down node;
• the second pull-up node control circuit is directly connected to a second pull-up node, the first voltage end, the input end, the resetting end, the pull-down node and the second voltage end, and configured to control the second pull-up node to be electrically connected to the input end under the control of the input signal, and control the second pull-up node to be electrically connected to the first voltage end under the control of the resetting signal;
• the pull-down node control circuit is directly connected to the pull-down node, the second pull-up node, the second voltage end and a third voltage end, and configured to control a potential at the pull-down node under the control of a voltage signal at the second pull-up node;
• the output pull-up circuit is directly connected to the first pull-up node, a clock signal end, and a gate driving signal output end, and configured to control the gate driving signal output end to be electrically connected to the clock signal end under the control of a voltage signal at the first pull-up node;
• and
• the output pull-down circuit is directly connected to the pull-down node, the third voltage end and the gate driving signal output end, and configured to control the gate driving signal output end to be electrically connected to the third voltage end under the control of the voltage signal at the pull-down node.