Gate driving unit, gate driving method, gate driving circuit and display device

A gate driving unit, comprising a first pull-down node control circuit, a second pull-down node control circuit and a pull-up node resetting circuit, wherein:

• the first pull-down node control circuit is connected to a pull-up node, a first pull-down node and a second control voltage end, and configured to control the first pull-down node to be electrically connected to, or electrically disconnected from, the second control voltage end under the control of a potential at the pull-up node;
• the second pull-down node control circuit is connected to the pull-up node, a second pull-down node and a first control voltage end, and configured to control the second pull-down node to be electrically connected to, or electrically disconnected from, the first control voltage end under the control of the potential at the pull-up node;
• and
• the pull-up node resetting circuit is connected to the first pull-down node, the second pull-down node, the pull-up node, the first control voltage end and the second control voltage end, and configured to control the pull-up node to be electrically connected to the second control voltage end under the control of a potential at the first pull-down node, and control the pull-up node to be electrically connected to the first control voltage end under the control of a potential at the second pull-down node;
• wherein a driving time comprises a plurality of voltage output periods, and each voltage output period comprises a first voltage output stage and a second voltage output stage arranged sequentially, and wherein:
• the first voltage output stage comprises at least one display period, and the second voltage output stage comprises at least one display period, and
• each display period comprises an input time period, an output time period, a resetting time period and an output cutoff maintenance time period arranged sequentially;
• wherein the gate driving method comprises:
• at the first voltage output stage, enabling the first control voltage end to input an active voltage, and enabling the second control voltage end to input an inactive voltage;
• at the second voltage output stage, enabling the first control voltage to input an inactive voltage and enabling the second control voltage end to input an active voltage;
• within the input time period and the output time period of the first voltage output stage, enabling a potential at the pull-up node to be the active voltage, controlling, by the first pull-down node control circuit, a potential at the first pull-down node to be the inactive voltage, and controlling, by the second pull-down node control circuit, a potential at the second pull-down node to be the inactive voltage;
• within the output cutoff maintenance time period and the resetting time period of the first voltage output stage and the resetting time period and the output cutoff maintenance time period of the second voltage output stage, enabling the potential at the pull-up node to be the inactive voltage, controlling, by the first pull-down node control circuit, the first pull-down node to be electrically disconnected from the second control voltage end, and controlling, by the second pull-down node control circuit, the second pull-down node to be electrically disconnected from the first control voltage end;
• within the output cutoff maintenance time period of the first voltage output stage, controlling, by the first pull-down node control circuit, the potential at the first pull-down node to be the active voltage, controlling, by the second pull-down node control circuit, the potential at the second pull-down node to be the inactive voltage, controlling, by the pull-up node resetting circuit, the pull-up node to be electrically connected to the second control voltage end under the control of the potential at the first pull-down node, and controlling, by the pull-up node resetting circuit, the pull-up node to be electrically disconnected from the first control voltage end under the control of the potential at the second pull-down node;
• and
• within the output cutoff maintenance time period of the second voltage output stage, controlling, by the first pull-down node control circuit, the potential at the first pull-down node to be the inactive voltage, controlling, by the second pull-down node control circuit, the potential at the second pull-down node to be the active voltage, controlling, by the pull-up node resetting circuit, the pull-up node to be electrically connected to the first control voltage end under the control of the potential at the second pull-down node, and controlling, by the pull-up node resetting circuit, the pull-up node to be electrically disconnected from the second control voltage end under the control of the potential at the first pull-down node.