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US 12,725,577 B2Granted
Gate driving circuits and display panels
AssigneeShenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
InventorsGuangyao Li, Baixiang Han, Xiang Yin
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Abstract
The present disclosure provides a gate driving circuit and a display panel. Before a first pull-up module transmits a first power signal to a first node in response to a first starting signal, a second pull-down module transmits a second power signal to a third node in response to a second starting signal, and a pull-down hold module disconnects an electrical connection between a first power terminal and a second node in response to a potential of the third node.
Claims15
A gate driving circuit, comprising
- a first pull-up module, electrically connected to a first node and a first power terminal, and configured to transmit a first power signal supplied by the first power terminal to the first node in response to a first starting signal;
- a second pull-down module, electrically connected to a second node, a third node, and a second power terminal, and configured to transmit a second power signal supplied by the second power terminal to the second node in response to the first starting signal;
- a pull-down hold module, electrically connected to the second node, the third node, and the first power terminal, and configured to control an electrical connection between the first power terminal and the second node in response to a potential of the third node;
- and
- an output module, electrically connected to the first node and the second node, and configured to output a gate control signal in response to a potential of the first node and a potential of the second node,
- wherein before the first pull-up module transmits the first power signal to the first node in response to the first starting signal, the second pull-down module transmits the second power signal to the third node in response to a second starting signal, and the pull-down hold module disconnects the electrical connection between the first power terminal and the second node in response to the potential of the third node.
3 more elements
A display panel, comprising:
- a first gate driving unit, comprising a plurality of gate driving circuits, wherein each of the gate driving circuits comprises a first pull-up module, a second pull-down module, a pull-down hold module, and an output module;
- the first pull-up module is electrically connected to a first node and a first power terminal, and configured to transmit a first power signal supplied by the first power terminal to the first node in response to a first starting signal;
- the second pull-down module is electrically connected to a second node, a third node, and a second power terminal, and configured to transmit a second power signal supplied by the second power terminal to the second node in response to the first starting signal;
- the pull-down hold module is electrically connected to the second node, the third node, and the first power terminal, and configured to control an electrical connection between the first power terminal and the second node in response to a potential of the third node;
- the output module is electrically connected to the first node and the second node, and configured to output a gate control signal in response to a potential of the first node and a potential of the second node;
- and wherein before the first pull-up module transmits the first power signal to the first node in response to the first starting signal, the second pull-down module transmits the second power signal to the third node in response to a second starting signal, and the pull-down hold module disconnects the electrical connection between the first power terminal and the second node in response to the potential of the third node;
- and
- a second gate driving unit, electrically connected to the first gate driving unit, configured to generate a plurality of starting signals to be output to the plurality of gate driving circuits of the first gate driving unit, wherein the starting signals comprise the first starting signal and the second starting signal.
5 more elements
Dependencies are inferred from the claim text.