Display Panel Refresh Driving Circuit for Uniform Multi-Zone Refresh
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Solution Overview
Problem
Current display screens with partitioned refresh functions suffer from issues such as image sticking and screen jitter due to varying refresh durations in different display areas.
Innovation Solution
A display panel with a multi-stage shift register module and a refresh driving unit that controls the duration of valid pulses to ensure consistent refresh across sub-pixel rows, preventing the cutoff of refresh signals and maintaining uniform display performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If partitioned refresh control is implemented with different refresh rates in dynamic and static picture areas, then power consumption is reduced and refresh rate requirements are met, but image sticking and screen jitter occur due to varying refresh durations
Solution Approach 1:
The patent applies local quality by implementing different refresh rates in different picture areas (dynamic vs. static). The gate driving circuit selectively applies high refresh rates to dynamic picture areas and low refresh rates to static picture areas, allowing power consumption to be reduced in static regions while maintaining display quality in dynamic regions.
Solution Approach 2:
The patent implements dynamics by making the refresh rate adjustable and variable across different picture areas. The gate driving circuit dynamically switches between high and low refresh rates based on the picture area type, enabling the system to adapt refresh timing to local content requirements and avoid display artifacts.
2Use of energy by moving object
If partitioned refresh control is implemented with different refresh rates in human eye observation area and non-human eye observation area, then power consumption is reduced, but image sticking and screen jitter occur
Solution Approach 1:
The patent applies local quality by implementing different refresh rates in different picture areas (dynamic vs. static). The gate driving circuit selectively applies high refresh rates to dynamic picture areas and low refresh rates to static picture areas, allowing power consumption to be reduced in static regions while maintaining display quality in dynamic regions.
Solution Approach 2:
The patent implements dynamics by making the refresh rate adjustable and variable across different picture areas. The gate driving circuit dynamically switches between high and low refresh rates based on the picture area type, enabling the system to adapt refresh timing to local content requirements and avoid display artifacts.
3Productivity
If multi-zone dynamic refresh technology is used to perform different refresh rates in different areas, then both refresh rate requirements and low power consumption requirements are accounted for, but display problems such as image sticking or screen jitter occur
Solution Approach 1:
The patent applies local quality by implementing different refresh rates in different picture areas (dynamic vs. static). The gate driving circuit selectively applies high refresh rates to dynamic picture areas and low refresh rates to static picture areas, allowing power consumption to be reduced in static regions while maintaining display quality in dynamic regions.
Solution Approach 2:
The patent implements dynamics by making the refresh rate adjustable and variable across different picture areas. The gate driving circuit dynamically switches between high and low refresh rates based on the picture area type, enabling the system to adapt refresh timing to local content requirements and avoid display artifacts.
Data Source
AI summary
A display panel includes a driving circuit including a first refresh driving line and N stages of first shift register modules. A first shift register module includes a first shift output unit, a refresh driving unit and a refresh control unit. First signal end of the refresh driving unit is connected to the first refresh driving line, second signal end of the refresh driving unit is connected to a trigger signal end, and output end of the refresh driving unit is connected to first end of the refresh control unit, second end of the refresh control unit is connected to output end of the first shift output unit, output end of the refresh control unit is connected to a row of sub-pixels, and the refresh driving unit is configured to provide a pulse control signal to control a valid pulse output duration of the refresh control unit.