Gate drive circuit, display panel and display device
By designing a gate driving circuit containing multiple control modules, the control of node voltage is optimized, the problem of insufficient stability of the shift register output signal is solved, and higher circuit stability and performance optimization is achieved.
CN119741895AActive Publication Date: 2025-04-01TIANMA ADVANCED DISPLAY TECH INST (XIAMEN) CO LTD
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Patent Information
- Application Number
- CN202510024705.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-07
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2045-01-07
AI Technical Summary
Technical Problem
In the existing gate driving circuit, the stability of the shift register output signal is insufficient, which affects the light emission effect of the sub-pixels.
Method used
A gate driving circuit including an input module, an output module, a first control module, a second control module and a third control module is designed. By optimizing the control of the node voltage, the connection relationship of the third node is simplified and the signal interference of the second node is reduced.
Benefits of technology
Improve the stability of the gate driving circuit, optimize performance, reduce signal interference, and improve the luminous effect of sub-pixels.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention discloses a gate drive circuit, a display panel and a display device. The gate drive circuit comprises a plurality of cascaded shift registers, and each shift register comprises an input module, an output module, a first control module, a second control module and a third control module. The input module is used for controlling the voltage of a first node and the voltage of a second node based on signals of a trigger signal end and a first clock end; the first control module is used for controlling the voltage of a third node based on the signals of the first clock end and the first node; the second control module is used for controlling the voltage of the fourth node based on signals of the first node, the third node, the first power supply end, the second power supply end, the first clock end and the second clock end; the third control module is used for controlling the voltage of the second node based on the signals of the first node, the third node, the first power supply end and the second clock end; and the output module controls the voltage of the first output end based on the second node, the fourth node, the first power supply end and the second power supply end.
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