Display Panel Sub-Pixel Deflection Angle for Edge Smoothness
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Solution Overview
Problem
Conventional display panels exhibit a significant saw-tooth phenomenon at the edges of images due to abnormally shaped regions with sub-pixels arranged in a step-like distribution, leading to undesirable visual effects.
Innovation Solution
The display panel incorporates abnormally shaped regions where sub-pixels are arranged in a step-like distribution with deflection angles greater than 0 degrees and less than 180 degrees at the edges of the steps relative to non-step sub-pixels, aligning the opening regions' contours with the abnormally shaped region's contour to minimize the saw-tooth effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If sub-pixels are arranged in a step-like distribution in abnormally shaped regions, then the screen occupation ratio is improved and ultra-narrow edge frame is achieved, but the saw-tooth phenomenon at the image edge becomes significant
Solution Approach 1:
The patent applies local quality by differentiating the arrangement of sub-pixels in abnormally shaped regions from the normal grid arrangement. Specifically, in the fourth corner region (abnormally shaped region), sub-pixels are arranged with varying pitch distances - the pitch in the row direction increases from the first to the third sub-pixel rows, while the pitch in the column direction increases from the first to the second sub-pixel columns. This local variation in sub-pixel arrangement adapts to the curved contour of the abnormally shaped region, thereby reducing the saw-tooth phenomenon at image edges while maintaining high screen occupation ratio.
2Ease of manufacture
If sub-pixels are arranged uniformly in a grid pattern, then manufacturing is simplified, but the visual effect at abnormally shaped regions deteriorates with significant saw-tooth phenomenon
Solution Approach 1:
The patent implements local quality by creating a non-uniform sub-pixel arrangement specifically in the abnormally shaped region while maintaining uniform grid arrangement in normal regions. In the fourth corner region, the sub-pixel pitch is locally adjusted - row-direction pitch increases across sub-pixel rows 1-3, and column-direction pitch increases across sub-pixel columns 1-2. This localized adaptation to the curved boundary contour reduces the saw-tooth effect without complicating the overall manufacturing process, as the adjustment is confined to specific regions rather than the entire display panel.
Data Source
AI summary
The disclosure discloses a display panel and a display device, and there is at least one abnormally shaped region in a display region of the display panel, and sub-pixels located in the abnormally shaped region are arranged in a step-like distribution, where at least opening regions of sub-pixels at the edges of the steps have a deflection angle of more than 0 degree and less than 180 degrees relative to opening regions of sub-pixels which are not located at the steps.


