3D Display Pixel Structure Asymmetry Reduces Moiré
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Solution Overview
Problem
Conventional 3D displays suffer from 3D moiré and binocular rivalry issues due to the interaction between pixel arrays and 3D barrier or lenticular films, which affect image brightness and quality.
Innovation Solution
A novel pixel structure is introduced, where the first and second light modulating elements on the TFT substrate are designed with specific arrangements of contact holes in subpixel strips to alternate their locations along horizontal and vertical directions, ensuring uniform visual brightness for right and left eye pixels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional pixel arrays are used with 3D barrier or lenticular films, then 3D display function is achieved, but 3D moiré and binocular rivalry occur causing non-uniform screen brightness
Solution Approach 1:
The patent applies asymmetry by designing different contact hole arrangements for right eye and left eye pixels. Specifically, right eye pixels have contact holes in the first area while left eye pixels have contact holes in the second area, creating an asymmetric pattern that breaks the uniformity condition and prevents moiré formation while maintaining 3D display function
Solution Approach 2:
The patent segments each pixel into multiple subpixel strips (first, second, third, fourth subpixel strips) with different contact hole configurations. This segmentation allows independent optimization of contact hole positions for different eye views, enabling the system to simultaneously serve both right and left eyes without generating moiré patterns
2Ease of manufacture
If contact holes are uniformly distributed in all pixels, then manufacturing is simplified, but visual brightness uniformity between right and left eye pixels deteriorates
Solution Approach 1:
The patent applies local quality by assigning different contact hole positions to different pixel types. Right eye pixels have contact holes positioned in the first area while left eye pixels have contact holes positioned in the second area. This localized differentiation ensures that each eye receives uniform brightness distribution from its designated pixels, resolving the brightness uniformity issue without requiring complete redesign of all pixels
Data Source
AI summary
In an embodiment of the invention, a pixel structure of a 3D display device is provided. The pixel structure of a 3D display device includes a thin film transistor (TFT) substrate including a pixel, wherein the pixel is divided into a first subpixel strip and a second subpixel strip, and each subpixel strip includes a plurality of subpixels, wherein each subpixel is divided into a first area and a second area including one contact hole located in one of the first area and the second area, wherein the locations of the contact holes in the first subpixel strip and the second subpixel strip are the same or the location of the contact holes in the first subpixel strip is a mirror image of the location of the contact holes in the second subpixel strip, and a light modulating element formed on the pixel.