Display Panel Subpixel Voltage Segmentation for Frame Conversion Artifacts
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Solution Overview
Problem
Conventional LCDs experience a bright and dark line phenomenon due to grayscale differences between subpixel groups during positive and negative frame conversion, leading to display quality issues.
Innovation Solution
The display panel incorporates alternately arranged first and second subpixel groups connected to different voltage dividing signal lines, allowing for electrical compensation and adjustment of grayscale values by using alternating current signals, thereby reducing the grayscale difference between high and low potentials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If conventional LCDs use backlit modules with liquid crystal panels for high image quality and power saving, then display performance is improved, but bright and dark line phenomena occur during positive and negative frame conversion due to grayscale differences between adjacent subpixel groups
Solution Approach 1:
The invention divides the voltage signal into multiple segments using different voltage dividing signal lines (first and second voltage dividing signal lines) for different subpixel groups. By segmenting the voltage supply and applying different voltage dividing signals to adjacent subpixel groups, the patent eliminates the grayscale difference that causes bright and dark line phenomena during frame conversion, while maintaining high display image quality.
2Ease of operation
If driving polarities of adjacent subpixel groups are made opposite for normal operation, then liquid crystal control function is achieved, but grayscale differences cause bright and dark line phenomena during frame conversion
Solution Approach 1:
The invention applies different voltage dividing signals locally to different subpixel groups. Specifically, first voltage dividing signal lines are used for first subpixel groups while second voltage dividing signal lines are used for second subpixel groups. This local differentiation in voltage signal application maintains the necessary opposite driving polarities for liquid crystal control while compensating for grayscale differences, thereby eliminating bright and dark line phenomena.
Solution Approach 2:
The invention changes the voltage signal parameters by introducing different voltage dividing signals (first and second voltage dividing signals) for different subpixel groups. By adjusting and differentiating these voltage parameters, the patent achieves both the required opposite driving polarities for liquid crystal operation and the grayscale uniformity needed to prevent bright and dark line phenomena during frame conversion.
Data Source
AI summary
The present application discloses a display panel and a display device. The display panel includes a first voltage dividing signal line, a second voltage dividing signal line, and a first subpixel group and a second subpixel group alternately arranged. The first subpixel group includes at least one column of first subpixels, and the second subpixel group includes at least one column of second subpixels. The first voltage dividing signal line is electrically connected to the first subpixels and is loaded with a first voltage dividing signal, and the second voltage dividing signal line is electrically connected to the second subpixels and is loaded with a second voltage dividing signal.