Shift register unit, gate driving circuit, and display panel
AssigneeWuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
InventorZhenfei Cai
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Abstract
The present invention provides a shift register unit, a gate driving circuit, and a display panel. The shift register unit includes: a pull-up control module connected to an output end of an (n−1)th-stage scanning signal, a first node, and a third node; a pull-up module connected to a first clock signal, the first node, and an output end of a present-stage scanning signal; a leakage-proof module connected to the first clock signal and the third node.
Claims20
A shift register unit, comprising:
- a pull-up control module connected to an output end of an (n−1)th-stage scanning signal, a first node, and a third node, wherein n is greater than or equal to 2;
- a pull-up module connected to a first clock signal, the first node, and an output end of a present-stage scanning signal;
- a leakage-proof module connected to the first clock signal and the third node;
- a pull-down control module connected to an output end of an (n+2)th-stage scanning signal and a second node;
- a first pull-down module connected to the output end of the (n+2)th-stage scanning signal, the first node, the second node, and the third node;
- a pull-down holding module connected to the output end of the (n−1)th-stage scanning signal, a first low direct current voltage, the second node, and the first pull-down module;
- a second pull-down module connected to the second node, the output end of the present-stage scanning signal, and the first low direct current voltage;
- and
- a bootstrap capacitor, wherein one end of the bootstrap capacitor is connected to the first node, and another end of the bootstrap capacitor is connected to the output end of the present-stage scanning signal.
A gate driving circuit, comprising a shift register unit, wherein the shift register unit comprises:
- a pull-up control module connected to an output end of an (n−1)th-stage scanning signal, a first node, and a third node, wherein n is greater than or equal to 2;
- a pull-up module connected to a first clock signal, the first node, and an output end of a present-stage scanning signal;
- a leakage-proof module connected to the first clock signal and the third node;
- a pull-down control module connected to an output end of an (n+2)th-stage scanning signal and a second node;
- a first pull-down module connected to the output end of the (n+2)th-stage scanning signal, the first node, the second node, and the third node;
- a pull-down holding module connected to the output end of the (n−1)th-stage scanning signal, a first low direct current voltage, the second node, and the first pull-down module;
- a second pull-down module connected to the second node, the output end of the present-stage scanning signal, and the first low direct current voltage;
- and
- a bootstrap capacitor, wherein one end of the bootstrap capacitor is connected to the first node, and another end of the bootstrap capacitor is connected to the output end of the present-stage scanning signal.
A display panel, comprising a gate driving circuit, wherein the gate driving circuit comprises a shift register unit, and the shift register unit comprises:
- a pull-up control module connected to an output end of an (n−1)th-stage scanning signal, a first node, and a third node, wherein n is greater than or equal to 2;
- a pull-up module connected to a first clock signal, the first node, and an output end of a present-stage scanning signal;
- a leakage-proof module connected to the first clock signal and the third node;
- a pull-down control module connected to an output end of an (n+2)th-stage scanning signal and a second node;
- a first pull-down module connected to the output end of the (n+2)th-stage scanning signal, the first node, the second node, and the third node;
- a pull-down holding module connected to the output end of the (n−1)th-stage scanning signal, a first low direct current voltage, the second node, and the first pull-down module;
- a second pull-down module connected to the second node, the output end of the present-stage scanning signal, and the first low direct current voltage;
- and
- a bootstrap capacitor, wherein one end of the bootstrap capacitor is connected to the first node, and another end of the bootstrap capacitor is connected to the output end of the present-stage scanning signal.
Dependencies are inferred from the claim text.