Display Substrate Aperture Layout to Prevent 3D Moire
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Solution Overview
Problem
Conventional 3D display technologies suffer from moire patterns due to light-emission discontinuity of pixels, primarily caused by linear and non-transparent source/drain metal lines, leading to periodic light shielding regions and discontinuous light emission.
Innovation Solution
A display substrate design that divides each sub-pixel into an upper and lower pixel aperture, with the second aperture region offset in the gate line direction relative to the first aperture region, allowing for continuous light emission by sharing a switch element, data line, and gate line, and arranging the data line in a folded manner to prevent crosstalk and ensure light continuity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a linear and non-transparent source/drain metal line is used in conventional pixel design, then the data line can effectively transmit signals, but periodic light shielding regions appear between pixels causing light-emission discontinuity and moire pattern
Solution Approach 1:
The patent divides each sub-pixel into two separate aperture regions (first and second aperture regions) that are offset from each other in the gate line direction. This segmentation allows the data line to pass through one aperture region while the other aperture region compensates for the light blockage, ensuring continuous light emission across the pixel array and eliminating the periodic light shielding that causes moire patterns.
2Object-affected harmful factors
If the second aperture region is offset from the first aperture region by more than the width of the first aperture region, then light emission continuity is improved, but the sub-pixel area and offset distance increase
Solution Approach 1:
The patent optimizes the offset distance between the first and second aperture regions to be less than or equal to the width of the first aperture region in the gate line direction. This parameter optimization ensures sufficient light emission continuity to prevent moire patterns while minimizing the additional area required, achieving a balance between light continuity and area efficiency.
3Object-affected harmful factors
If the data line is arranged in a folded line form in the non-aperture region, then light continuity is maintained, but the data line length and routing complexity increase
Solution Approach 1:
The patent utilizes the non-aperture region between the first and second aperture regions to route the data line in a folded configuration. By arranging the data line in this intermediate space rather than requiring it to pass directly through the aperture regions, the design maintains light continuity while accommodating the necessary signal routing with minimal additional complexity.
Data Source
AI summary
The present disclosure provides a display substrate and a display device. The display substrate includes a base substrate, a plurality of data lines arranged on the base substrate and extending in a first direction, a plurality of gate lines arranged on the base substrate and extending in a second direction, and a plurality of sub-pixels. Each sub-pixel at least includes a first aperture region and a second aperture region spaced apart from each other in the first direction, the second aperture region is offset in the second direction with respect to the first aperture region, and an offset distance is less than or equal to a width of the first aperture region in the second direction.