Display Panel Driving Strength Control for Multi-Refresh Areas
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Solution Overview
Problem
Existing display technologies face challenges in reducing power consumption while maintaining high display quality, particularly in multi-frequency driving modes where different display areas require varying refresh rates and driving strengths.
Innovation Solution
A driving method and apparatus that adjust the refresh rates and driving strengths of pixels in different display areas of a display panel, using a driving strength adjustment circuit to provide data signals with varying strengths based on the refresh rate requirements of each area, thereby optimizing power consumption and display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If uniform high driving strength is applied to all pixels, then display quality is maintained, but power consumption increases
Solution Approach 1:
The patent applies different driving strengths to different display areas based on their specific requirements. High-refresh-rate areas receive stronger driving signals to ensure quick charging and maintain display quality, while low-refresh-rate areas receive reduced driving strength to minimize power consumption. This localized differentiation resolves the contradiction between uniform quality maintenance and energy efficiency.
Solution Approach 2:
The patent dynamically adjusts the driving strength of data signals based on the refresh rate requirements of different display areas. The driving strength adjustment circuit modifies signal characteristics in real-time according to the multi-frequency driving mode, enabling the system to adapt power distribution to actual display needs and resolve the static contradiction between quality and power consumption.
2Reliability
If high refresh rate is applied to all display areas, then display quality is improved, but power consumption increases
Solution Approach 1:
The patent segments the display panel into multiple display areas with different refresh rate requirements. Each area is independently controlled with appropriate driving strength, allowing high-refresh-rate regions to maintain superior display quality while low-refresh-rate regions consume less power. This spatial segmentation resolves the contradiction between universal quality improvement and energy efficiency.
3Speed
If data signals with sufficient driving strength are provided to all pixels, then charging speed is improved, but power consumption increases
Solution Approach 1:
The patent provides strong driving strength signals specifically to pixels in high-refresh-rate areas where quick charging is necessary for maintaining display quality. Pixels in low-refresh-rate areas receive reduced driving strength since they do not require rapid updates. This localized approach to charging speed resolves the contradiction between universal fast charging and power consumption.
Data Source
AI summary
A driving method for a display panel includes when the current driving mode of the display panel is a multi-frequency driving mode, determining the refresh rate of each pixel in the display panel in the current driving mode, where the display panel in the multi-frequency driving mode includes at least a first display area and a second display area, and the refresh rate of a pixel in the first display area is different from the refresh rate of a pixel in the second display area; and during at least part of a display period in the current driving mode, controlling a data driving circuit to provide data signals with different driving strengths for the pixel in the first display area and the pixel in the second display area.