Array Substrate Layout for Microscopic Moiré Reduction in 3D Displays
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Solution Overview
Problem
Conventional 3D display products suffer from the issue of moiré, particularly microscopic moiré, which is caused by the alignment of pixel islands and cylinder lenses, leading to visible fine stripes and reduced display quality.
Innovation Solution
The array substrate design includes intersecting first and second signal lines with inclined portions and staggered sub-pixel arrangements, ensuring misalignment of opening regions between adjacent pixel repeating unit rows, and a dual gate electrode structure to enhance pixel opening rate and reduce non-opening regions, thereby disrupting dark zone alignment and mitigating microscopic moiré.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If pixel islands and cylinder lenses are aligned in conventional 3D display products, then the display structure is simple and easy to manufacture, but microscopic moiré occurs causing visible fine stripes
Solution Approach 1:
The patent applies asymmetry by intentionally misaligning the pixel islands relative to the cylinder lenses, breaking the symmetric alignment pattern that causes moiré. The pixel islands are positioned at offset locations that do not correspond to the regular spacing of the cylinder lenses, thereby disrupting the periodic interference pattern that creates visible fine stripes.
Solution Approach 2:
The patent introduces a temporal dimension to the solution by using sequential viewing modes. The display alternates between left-eye and right-eye images at different frame rates, and the cylinder lenses direct these temporally separated images to respective eyes. This temporal dimension allows the system to achieve 3D effect without relying solely on spatial alignment, thereby avoiding moiré.
2Ease of manufacture
If sub-pixel units are arranged in pixel islands with regular spacing, then the manufacturing process is straightforward, but opening rate is reduced due to increased non-opening regions
Solution Approach 1:
The patent changes the spatial parameters of the signal lines and sub-pixel arrangements. The first and second signal lines are positioned with optimized spacing and inclination angles, allowing the opening regions to be larger while maintaining proper electrical connections. This parameter optimization increases the opening rate without complicating the manufacturing process.
3Ease of manufacture
If signal lines are arranged in straight parallel lines, then the routing is simple, but the opening rate is reduced due to larger non-opening regions
Solution Approach 1:
The patent applies curvature by inclining the first and second signal lines at specific angles relative to the row and column directions. Instead of using straight horizontal and vertical signal lines, the inclined arrangement allows the signal lines to pass through fewer pixel regions, reducing the non-opening areas and increasing the opening rate while maintaining routing simplicity.
Data Source
AI summary
Disclosed are an array substrate, a display panel, and a display device for mitigating microscopic moiré. The array substrate includes: first signal lines, and second signal lines. Each second signal line includes: first portions extending along the column direction, and second portions; the second portion includes parts extending along the included direction, and the second portion connects two first portions; an included angle between the included direction and the column direction, and an included angle between the included direction and the row direction are greater than 0; and the first portion is adjacent to an opening region of a sub-pixel unit in the row direction, the plurality of second portions each pass through a region between two adjacent pixel repeating unit rows of at least partial pixel repeating unit rows, and a distance between two first portions connected with the second portion in the row direction is greater than 0.