Array Substrate Edge Light Shielding for Irregular Display Borders
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Solution Overview
Problem
Existing display devices with non-rectangular irregular shapes, such as full-screen or wearable displays, face issues with graininess and a sawtooth feeling at the edges due to uneven pixel arrangements.
Innovation Solution
The array substrate incorporates a light shielding block that covers part of the light transmission region of edge pixels, reducing light transmittance and brightness, thereby minimizing the acuity of edge irregularities and improving display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If edge pixels are arranged to form a non-rectangular display region, then the display device meets diversified appearance requirements, but graininess and sawtooth effects appear at the edges due to uneven pixel arrangements
Solution Approach 1:
The patent applies local quality by differentiating the treatment of edge pixels from inner pixels. Specifically, edge pixels are equipped with light shielding blocks that reduce their light transmittance, while inner pixels maintain normal light transmittance. This local differentiation compensates for the uneven light emission at edges caused by irregular shapes, thereby reducing graininess and sawtooth effects while preserving the desired non-rectangular appearance.
2Manufacturing precision
If light transmittance of edge pixels is reduced to minimize edge irregularities, then display quality improves, but brightness of edge pixels decreases
Solution Approach 1:
The patent employs parameter changes by modifying the light transmittance parameter of edge pixels through the introduction of light shielding blocks. By adjusting the light transmittance parameter locally at edge pixels (reducing it compared to inner pixels), the overall edge uniformity is improved. The specific light transmittance values are optimized to balance edge uniformity improvement with maintaining adequate brightness, resolving the contradiction between edge quality and brightness.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively reduces graininess and sawtooth effects at the edges of non-rectangular display regions, enhancing the overall display effect by decreasing the brightness and light transmittance of edge pixels.
Implementation Method 1
a light shielding block 20 is provided, which covers at least a part of a light transmission region 142 of the edge pixel 160
Data Source
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AI summary
The embodiments of the present disclosure provide an array substrate and a method for manufacturing the same, and a display device. The array substrate comprises: a substrate, wherein the substrate has a display region and a peripheral region surrounding the display region, the display region has a plurality of pixels arranged in an array, and each of the plurality of pixels comprises a light transmission region and a light shielding region; and a light shielding block covering at least a part of the light transmission region of at least one pixel close to the peripheral region of the plurality of pixels.