Shift register, gate drive circuit and display panel

By designing a shift register containing a node voltage control module and an output module, the problem of requiring two gate driving signals in the existing display panel is solved, and the effect of reducing the frame area and improving the user experience is achieved.

CN119649736AActive Publication Date: 2025-03-18HEFEI VISIONOX TECH CO LTD
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Patent Information

Application Number
CN202510134538.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-06
Publication Date
2025-03-18
Estimated Expiration
2045-02-06

AI Technical Summary

Technical Problem

In the existing display panel, two gate driving signals are needed to drive the pixel circuit, resulting in an increase in the frame area and affecting the user experience.

Method used

By designing a shift register, including a node voltage control module, a first output module and a second output module, the node voltage can be controlled according to the input signal and output two different gate driving signals.

Benefits of technology

It realizes the output of two different gate driving signals through the same shift register, which meets the driving requirements of the pixel circuit, reduces the frame area of ​​the display panel, and improves the user experience.

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Abstract

The embodiment of the invention discloses a shift register, a gate drive circuit and a display panel, and is characterized in that a node voltage control module controls the voltage of a first node and a second node according to an input signal, and a first output module outputs a first gate drive signal according to the voltage of the first node and the second node; and the second output module outputs a second gate driving signal according to the voltage of the first node and / or the second node, and the first gate driving signal is different from the second gate driving signal. Thus, two different gate driving signals can be output through the same shift register, the driving requirement for a pixel circuit can be met, the frame of the display panel can be reduced, and the user experience can be improved.
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