Display Panel Light Shielding Layer Asymmetric Pixel Aperture
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional display panels suffer from varying aperture ratios due to enlarged light shielding layers, leading to decreased display quality and visual artifacts like image strips when pixels with lower aperture ratios are arranged repetitively.
Innovation Solution
A display panel design featuring a light shielding layer with extending portions that overlap specific pixels, distributing first pixels with lower aperture ratios uniformly across the display region, ensuring all adjacent pixels have higher aperture ratios, thus minimizing the perception of image strips without reducing the overall aperture ratio.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the light shielding layer is enlarged to shield parts of the structure such as spacers, then the light shielding function is improved, but the aperture ratio of adjacent pixels decreases
Solution Approach 1:
The light shielding layer is designed with different extending portions that selectively overlap specific pixels (first pixels) while leaving other pixels (second pixels) with larger aperture ratios. This creates local variation in light shielding properties, where only specific regions are shielded to prevent image strips while maintaining high aperture ratios in other regions.
Solution Approach 2:
The extending portions of the light shielding layer are asymmetrically positioned to overlap only certain pixels in a non-uniform pattern. This asymmetric design ensures that first pixels (with smaller aperture ratios) are distributed in a specific pattern where no two first pixels are adjacent, preventing the formation of visible image strips while minimizing overall impact on aperture ratio.
2Object-affected harmful factors
If pixels with lower aperture ratio are arranged in a repetitive manner, then the light shielding function is improved, but visual quality deteriorates due to image strips
Solution Approach 1:
The extending portions are positioned asymmetrically so that first pixels with lower aperture ratios are distributed in a non-repetitive pattern where no two first pixels are adjacent horizontally or vertically. This breaks the repetitive pattern that causes image strips, improving visual quality while maintaining the light shielding function.
Solution Approach 2:
By varying the aperture ratios of different pixels (creating visual variation similar to color changes), the design prevents monotonous repetitive patterns from forming. The alternating pattern of first and second pixels creates visual diversity that eliminates the perception of image strips.
3Reliability
If the light shielding layer is designed to prevent image strips, then visual quality is improved, but the aperture ratio may be reduced
Solution Approach 1:
The light shielding layer applies local quality variation by creating first pixels with smaller aperture ratios only in specific positions where extending portions overlap, while maintaining larger aperture ratios in second pixels. This localized approach prevents image strips without significantly reducing the overall aperture ratio of the display panel.
Solution Approach 2:
Instead of uniformly reducing aperture ratios across all pixels, the design applies partial action by affecting only specific first pixels (those overlapping with extending portions) while leaving second pixels with larger aperture ratios unaffected. This minimizes the overall impact on aperture ratio while achieving the visual quality improvement.
Data Source
AI summary
A display panel includes a first substrate, a second substrate and a light shielding layer located between the first substrate and the second substrate. The light shielding layer includes first connecting portions extending along a first direction, second connecting portions extending along a second direction, extending portions and sub-extending portions connected by the first and second connecting portions. The first connecting portions and the second connecting portions define sub-pixels. The sub-pixels include a first sub-pixel. A projection of the extending portions on the first substrate overlaps the first sub-pixel to form a first overlapping area. A projection of the sub-extending portions on the first substrate overlaps the first sub-pixel to form a second overlapping area. The first overlapping area is greater than the second overlapping area. A largest width of the extending portions is greater than a largest width of the sub-extending portions in the first direction.