A gate driving circuit, a gate driving method and a display panel
By setting a partial refresh control module in the gate drive circuit, the working mode of the gate drive circuit is optimized, the number of pixel refreshes is reduced, the aging problem of the display panel caused by frequent refresh of the gate drive IC is solved, and the service life of the display panel is extended.
CN122435869APending Publication Date: 2026-07-21HKC CORP LTD
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HKC CORP LTD
- Filing Date
- 2026-06-23
- Publication Date
- 2026-07-21
AI Technical Summary
Technical Problem
The problem of frequent pixel refresh controlled by the gate driver IC accelerating the aging of the display panel.
Method used
By setting up a first refresh control module and a second refresh control module, the signal output of the output module is controlled in the partial refresh mode, reducing the number of pixel refreshes, and optimizing the operation of the gate drive circuit by utilizing the pre-charge voltage and discharge mechanism.
Benefits of technology
This reduces the pixel refresh rate of the display panel, extending its lifespan.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN122435869A_ABST
Abstract
The application belongs to the technical field of display driving, and particularly relates to a gate driving circuit, a gate driving method and a display panel. The circuit comprises N cascaded gate driving units, the nth gate driving unit comprises: a pull-up module configured to charge a driving control node in response to an output signal of the nth-i gate driving unit; an output module configured to output a stage transmission signal and a gate driving signal under the action of a driving voltage on the driving control node and a current stage clock signal; a first local refresh control module configured to control the output module to stop outputting the stage transmission signal in a local refresh mode if a current stage is a refresh row and the nth+i stage is a non-refresh row; and a second local refresh control module configured to charge the driving control node in the local refresh mode if the nth-i stage is a non-refresh row and the current stage is a refresh row. The application improves the service life of the display panel.
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