3D Display Pixel Staggering and Grating Inclination to Reduce Crosstalk
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Solution Overview
Problem
Current three-dimensional display devices using naked eye stereoscopic technology face issues with crosstalk and Moire problems when applying existing three-dimensional gratings to pixel structures, which degrade the viewing effect.
Innovation Solution
A three-dimensional display device with a pixel structure where sub-pixels are staggered by half a pixel in each row and aligned in columns, combined with a three-dimensional grating having strip-like structures that extend at a preset inclination angle, reducing the overlap of sub-pixels covered by adjacent gratings and minimizing crosstalk and Moire effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing three-dimensional grating is applied to common pixel structure, then naked eye stereoscopic display is achieved, but crosstalk and Moire problems occur
Solution Approach 1:
The patent applies asymmetry by designing sub-pixels with different shapes (rectangular vs. triangular) and arranging them in an asymmetric pattern within each pixel unit. The first sub-pixel has a rectangular shape while the second sub-pixel has a triangular shape, creating an asymmetric pixel structure that optimizes light distribution and reduces crosstalk between adjacent pixels in the three-dimensional display
Solution Approach 2:
The patent introduces a new dimension by inclining the strip-like grating structures at a preset angle relative to the horizontal direction. This angular inclination adds a dimensional parameter to the grating design, allowing light to be directed at specific angles to different sub-pixels, thereby reducing Moire effects and improving stereoscopic display quality
2Measurement precision
If pixel size is reduced to increase visual resolution, then PPI increases, but manufacturing difficulty increases
Solution Approach 1:
The patent segments each pixel into multiple sub-pixels (first sub-pixel and second sub-pixel with different shapes and functions) arranged in a specific pattern. This segmentation allows the pixel structure to achieve higher effective resolution through sub-pixel rendering techniques while maintaining larger physical pixel sizes that are easier to manufacture
Solution Approach 2:
The patent changes the geometric parameters of sub-pixels by using different shapes (rectangular and triangular) and aspect ratios. This parameter variation optimizes the light emission characteristics and viewing angles without requiring reduction of overall pixel size, thereby maintaining manufacturability while improving visual resolution
Data Source
AI summary
The present disclosure provides a three-dimensional display device in which a pixel structure includes a plurality of sub-pixels arranged in rows and columns. In each column of sub-pixels, the sub-pixels are aligned. In each row of sub-pixels, each of the sub-pixels is staggered by half a sub-pixel with respect to an adjacent sub-pixel, and is different in color from the adjacent sub-pixel. The corresponding three-dimensional grating includes a plurality of strip-like grating structures periodically arranged in a horizontal direction, wherein the strip-like grating structures extend in the same direction that has a preset inclination angle with respect to the horizontal direction. Each strip-like grating structure corresponds to at least two sub-pixels in respective rows of sub-pixels which display different viewpoint images.