Curved Display Panel Offset Alignment for Light Leakage
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Solution Overview
Problem
Curved display panels face issues with light leakage and color differences due to relative displacement between the patterned light-shielding layer and the array substrate during bending, leading to inconsistent alignment and display effects when viewed from different angles.
Innovation Solution
A display panel design with a central line dividing it into regions, where sub-pixels and common lines have specific offset distances and hole configurations in the black matrix to maintain consistent alignment and exposure areas, ensuring uniform display even when bent.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a flat display panel is bent to fabricate a curved display panel, then the display panel can be used in curved applications, but relative displacement occurs between the patterned light-shielding layer and the array substrate causing light leakage
Solution Approach 1:
The display panel is divided into multiple regions (first region, second region, third region) with different alignment configurations. Each region has sub-pixels with specifically designed offsets relative to scan lines and common lines, allowing each segment to compensate for bending-induced displacement independently
Solution Approach 2:
Different regions of the display panel are given different local alignment characteristics. The first region has a first offset distance between sub-pixels and scan lines, the second region has a second offset distance, and the third region has a third offset distance. This local differentiation ensures that each region maintains proper alignment after bending
2Adaptability or versatility
If the display panel is bent, then curved display is achieved, but the patterned light-shielding layer cannot completely cover the shielded region resulting in light leakage
Solution Approach 1:
The alignment offsets are pre-designed into the sub-pixel and common line configurations before bending occurs. The black matrix holes are also pre-positioned to account for expected displacement, so that after bending, the light-shielding layer properly covers the shielded regions without light leakage
Solution Approach 2:
The invention applies counter-offsets to compensate for the expected bending displacement. By designing sub-pixels with specific offsets from scan lines and common lines with different distances from the central line, the invention pre-counteracts the relative displacement that will occur during bending, preventing light leakage
3Adaptability or versatility
If the display panel is bent, then curved display is achieved, but inconsistent alignment configurations of sub-pixels result in color difference from different view angles
Solution Approach 1:
The display panel is segmented into multiple regions with different alignment parameters. Each region has specifically designed offset distances between sub-pixels, scan lines, and common lines, ensuring that after bending, each region maintains consistent alignment configuration for uniform display quality across different view angles
Data Source
AI summary
A display panel is divided into a first region and a second region located outside the first region, and includes a first sub-pixel, a second sub-pixel, a plurality of scan lines, a first common line, a second common line, and a black matrix. In the first sub-pixel, a first distance exists between the first common line and a neighboring scan line along a second direction. In the second sub-pixel, a second distance exists between the second common line and a neighboring scan line along the second direction, and the first distance is not equal to the second distance. The black matrix has a plurality of holes, including a first hole and a second hole. The first hole exposes the first sub-pixel and the first common line located in the first region. The second hole exposes the second sub-pixel and the second common line located in the second region.