Gate drive circuit, drive circuit, display panel and display device

By combining the transmission module, output module, and output frequency divider module, the problem of unstable output of the gate drive circuit was solved, and stable signal transmission and stable display of the display panel were achieved.

CN121600864APending Publication Date: 2026-03-03WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202511893725.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-15
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

In the segmented frequency mode design, the output stability of the gate drive circuit is poor, which causes the output potential of the gate control signal to float, affecting the display effect of the display panel.

Method used

By combining the design of the transmission module, output module, and output frequency divider module, the signal transmission path is controlled, including disconnecting and connecting the current path, to ensure the stability of the signal output.

Benefits of technology

The output stability of the gate drive circuit is improved, ensuring that the signal output terminal of the display panel can continuously supply signals, thereby improving the display effect.

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Abstract

The invention discloses a grid driving circuit, a driving circuit, a display panel and a display device, and a level transmission module is used for controlling a signal of a first node, a signal of a second node and a signal of a third node according to a starting signal and a clock signal, and outputting a level transmission control signal. The output module is used for outputting a grid control signal according to the signal of the fourth node and the signal of the fifth node. And the output frequency division module is used for controlling signal transmission between the first node and the third node and controlling signal transmission between the second node and the fifth node and between the third node and the fifth node according to the node control signal, the first frequency division control signal and the signal of the third node. When the current path between the first node and the fourth node and the current path between the second power supply end and the stage transmission output end are disconnected, the output frequency division module disconnects the current paths between the second node and the third node and the fifth node; and the output module is connected with a current path between the fourth power supply end and the signal output end according to the signal of the fifth node.
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Citation Information

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