Display Panel Sub-Pixel Layout for Luminance Uniformity
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Solution Overview
Problem
Profiled display panels with varying display widths suffer from significant luminance differences between regions, leading to a poor user experience due to differences in scanning and data line loads, which are exacerbated by the difficulty in achieving consistent optical and color parameters across spliced panels.
Innovation Solution
A display panel design with varying sub-pixel group densities along a direction, where the number of sub-pixels in each group gradually decreases, and the arrangement of sub-pixel groups is optimized to minimize luminance differences by adjusting the number of sub-pixels in adjacent groups and using bevel edges to smooth boundary transitions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display panel uses different widths in different regions to adapt to profiled structures, then the display panel can be applied to specialized electronic devices, but the luminance difference between regions becomes obvious and reduces visual effect
Solution Approach 1:
The patent applies local quality by configuring different numbers of sub-pixels in different regions of the display panel. Specifically, the first region has a first number of sub-pixels while the second region has a second number of sub-pixels, with the ratio of the first number to the second number being different from the ratio of the first width to the second width. This local differentiation compensates for the luminance differences caused by the profiled structure, ensuring that each region's sub-pixel count is optimized for its specific width to maintain overall luminance uniformity.
2Area of stationary object
If spliced panels are used to achieve profiled display, then larger display areas can be obtained, but consistent optical and color parameters across spliced panels are difficult to achieve
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the number of sub-pixels in different regions based on the width variations of the profiled display panel. By changing the sub-pixel count parameter in response to width changes, the system compensates for the inherent inconsistencies in spliced panels, achieving uniform luminance across the entire display area without requiring perfect optical and color parameter consistency from the spliced panels themselves.
3Ease of manufacture
If the number of sub-pixels is uniformly distributed, then the manufacturing process is simpler, but the load on scanning and data lines varies significantly in regions with different widths
Solution Approach 1:
The patent applies local quality by implementing non-uniform sub-pixel distribution across different regions. The first region has a first number of sub-pixels and the second region has a second number of sub-pixels, creating local optimization that balances the load on scanning and data lines. This approach sacrifices the simplicity of uniform distribution but ensures reliability by preventing excessive load variation in regions with different widths.
Data Source
AI summary
A display panel and a display apparatus includes sub-pixels, and First and second regions arranged along a first direction. First sub-pixel groups in the first region and second sub-pixel groups in the second region are arranged along the first direction, and each include at least two sub-pixels arranged along the second direction. A number of the sub-pixels in the second sub-pixel group close to the first region is greater than a number of the sub-pixels in the second sub-pixel groups away from the first region. The first sub-region of the second region is closer to the first region than the second sub-region. From the first region to the second region, a variation rate of the numbers of the sub-pixels in the second sub-pixel groups in the first sub-region is greater than a variation rate of the numbers of the sub-pixels in the second sub-pixel groups in the second sub-region.