Gate driving circuits and display panels
AssigneeGuangzhou China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
InventorXiaohai CHEN
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Abstract
The present disclosure provides a gate driving circuit and a display panel. When a pull-up control module controls an electrical connection between a first voltage terminal and a second node, an inverting module disconnects an electrical connection between a low-frequency clock signal terminal and a third node in response to a potential of the second node, the inverting module controls an electrical connection between the first voltage terminal and the third node in response to a potential of a first node, and a pull-down holding module disconnects an electrical connection between the first voltage terminal and the first node in response to a potential of the third node.
Claims20
A gate driving circuit, comprising:
- an inverting module, electrically connected to a first voltage terminal, a first node, a second node, and a third node, configured to control a signal transmission between the first voltage terminal and the third node in response to a potential of the first node, and configured to control a signal transmission between a low-frequency clock signal terminal and the third node in response to a potential of the second node;
- a pull-down holding module, electrically connected to the first voltage terminal, the first node, and the third node, and configured to control a signal transmission between the first voltage terminal and the first node in response to a potential of the third node;
- and
- a pull-up control module, electrically connected to the first voltage terminal, the first node, and the second node, configured to pull up the potential of the first node in response to a pull-up control signal, and configured to control a signal transmission between the first voltage terminal and the second node in response to the pull-up control signal,
- wherein when the pull-up control module is configured to electrically connect the first voltage terminal and the second node in response to the pull-up control signal, the inverting module is configured to disconnect an electrical connection between the low-frequency clock signal terminal and the third node in response to the potential of the second node, the inverting module is also configured to control an electrical connection between the first voltage terminal and the third node in response to the potential of the first node, and the pull-down holding module is configured to disconnect an electrical connection between the first voltage terminal and the first node in response to the potential of the third node.
A display panel, comprising a gate driving unit, the gate driving unit comprising a plurality of gate driving circuits arranged in cascade, and at least one of the gate driving circuits comprising:
- an inverting module, electrically connected to a first voltage terminal, a first node, a second node, and a third node, configured to control a signal transmission between the first voltage terminal and the third node in response to a potential of the first node, and configured to control a signal transmission between a low-frequency clock signal terminal and the third node in response to a potential of the second node;
- a pull-down holding module, electrically connected to the first voltage terminal, the first node, and the third node, and configured to control a signal transmission between the first voltage terminal and the first node in response to a potential of the third node;
- and
- a pull-up control module, electrically connected to the first voltage terminal, the first node, and the second node, configured to pull up the potential of the first node in response to a pull-up control signal, and configured to control a signal transmission between the first voltage terminal and the second node in response to the pull-up control signal,
- wherein when the pull-up control module is configured to electrically connect the first voltage terminal and the second node in response to the pull-up control signal, the inverting module is configured to disconnect an electrical connection between the low-frequency clock signal terminal and the third node in response to the potential of the second node, the inverting module is also configured to control an electrical connection between the first voltage terminal and the third node in response to the potential of the first node, and the pull-down holding module is configured to disconnect an electrical connection between the first voltage terminal and the first node in response to the potential of the third node;
- and
- wherein an (n−4)th stage gate control signal output by an (n−4)th stage gate driving circuit serves as the pull-up control signal received by the pull-up control module of the n-th stage gate driving circuit.
Dependencies are inferred from the claim text.