Display Panel Pixel Layout to Preserve Brightness in AR/VR
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Solution Overview
Problem
High pixel density in display panels for Augmented Reality (AR) and Virtual Reality (VR) applications leads to reduced brightness due to excessive shielding of pixel regions by spacers and black matrices, resulting in poor display performance.
Innovation Solution
The design includes an array substrate with intersecting signal lines defining first and second pixel regions and redundant regions, where the spacer overlaps only the redundant region, allowing the second pixel region to compensate for brightness loss by increasing its area, thus minimizing the impact of spacers on display brightness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If pixel density is increased for AR/VR applications, then resolution is improved, but brightness decreases due to excessive shielding by spacers and black matrices
Solution Approach 1:
The pixel array is segmented into effective pixel regions and redundant regions. The redundant regions are specifically designated to accommodate spacers, separating the shielding function from the display function. This segmentation allows high pixel density in effective regions without brightness penalty.
Solution Approach 2:
The shielding function is extracted from the effective pixel regions and relocated to redundant regions. By taking out the spacer placement function from areas that would otherwise be used for display, the patent eliminates the harmful shielding effect on brightness while maintaining structural support.
2Stability of the object's composition
If spacers are placed in pixel regions to maintain structural integrity, then device stability is improved, but display brightness deteriorates due to shielding
Solution Approach 1:
Redundant regions serve as intermediary zones that mediate between the structural support function (requiring spacers) and the display function (requiring brightness). These intermediary regions allow spacers to be placed without directly interfering with effective pixel regions, thus maintaining both structural integrity and display brightness.
Solution Approach 2:
The patent converts the potentially harmful effect of spacers (shielding and brightness reduction) into a beneficial arrangement by strategically placing them in redundant regions. What would normally be wasted space becomes useful for structural support, while the effective pixel regions remain unobstructed for optimal brightness.
Data Source
AI summary
The embodiment of the present disclosure provides a display panel, which includes an array substrate, a counter substrate and a spacer. The array substrate includes a base substrate and a plurality of signal lines on the base substrate. The plurality of signal lines include a plurality of first signal lines and a plurality of second signal lines. The plurality of first signal lines and the plurality of second signal lines intersect each other to define a plurality of first regions. The plurality of first regions include a plurality of first pixel regions, at least one second pixel region and at least one redundant region. The first signal line extends along a first direction, the second signal line includes a body portion extending along a second direction, at least one second signal line further includes a bending portion connected to the body portion.