Stereoscopic Display Pixel Layout for Lower Viewpoint Crosstalk
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing stereoscopic image display devices suffer from crosstalk between viewpoints, which occurs when adjacent viewpoints partially overlap, reducing the clarity and effectiveness of the 3D image.
Innovation Solution
A stereoscopic image display device is designed with a specific arrangement of pixels and lenses, where the long sides of the lenses are slanted with respect to the pixel arrangement, and the sub-pixels are aligned and positioned to minimize overlap and crosstalk, using a unique alignment and shape configuration to enhance viewpoint separation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a conventional pixel and lens arrangement is used, then the device structure is simple, but crosstalk between viewpoints occurs reducing image quality
Solution Approach 1:
The patent applies asymmetry by configuring different pixel types (first pixels with first sub-pixels, second pixels with second sub-pixels, third pixels with third sub-pixels) with different sub-pixel arrangements and orientations relative to the lens long sides. This asymmetric arrangement prevents symmetric overlap of adjacent viewpoints, thereby reducing crosstalk while maintaining a manageable device structure.
Solution Approach 2:
The patent introduces dimensional variation by orienting sub-pixels in different directions (some aligned with lens long sides, others perpendicular or at angles) and arranging pixels in multiple rows with different configurations. This multi-dimensional arrangement separates viewpoints more effectively in both horizontal and vertical dimensions, reducing crosstalk without excessive structural complexity.
2Ease of manufacture
If lenses are arranged with long sides parallel to pixel rows, then manufacturing is easier, but adjacent viewpoints overlap causing crosstalk
Solution Approach 1:
The patent applies local quality by making different portions of the pixel array have different sub-pixel arrangements and orientations. Specifically, different pixel types in different rows have sub-pixels oriented differently relative to the lens long sides, creating local variations that prevent uniform crosstalk patterns while maintaining overall manufacturability.
Solution Approach 2:
The patent segments the pixel array into multiple types (first pixels, second pixels, third pixels) with distinct sub-pixel configurations. This segmentation allows each segment to be optimized for reducing crosstalk in specific directions, and the segmented structure can be manufactured using standard processes applied repeatedly to different segments.
3Manufacturing precision
If sub-pixels are uniformly arranged in all pixels, then manufacturing is simpler, but viewpoint separation is insufficient leading to crosstalk
Solution Approach 1:
The patent uses asymmetry in sub-pixel arrangement by creating different pixel types with different sub-pixel orientations and configurations. This asymmetric design improves viewpoint separation precision by preventing symmetric crosstalk patterns, while the modular nature of the different pixel types keeps manufacturing complexity manageable through repeated patterns.
Solution Approach 2:
The patent changes parameters of sub-pixel arrangements across different pixel types, including orientation angles, positions, and configurations. By varying these parameters locally across the array, the patent achieves superior viewpoint separation while maintaining ease of manufacture through parameterized design that can be implemented using standard manufacturing variations.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively reduces crosstalk between viewpoints, enhancing the clarity and quality of the 3D image by improving the separation of left and right eye images, thereby improving the overall 3D viewing experience.
Implementation Method 1
a lens overlapping the plurality of pixels in the third direction and arranged such that a long side of the lens is slanted with respect to the second direction
Data Source
AI summary
A stereoscopic image display device includes pixels arranged in a first direction and a second direction perpendicular to the first direction, and including light emitting surfaces facing a third direction perpendicular to the first and second directions, and a lens overlapping the pixels in the third direction and arranged such that a long side of the lens is slanted with respect to the second direction. The pixels include first pixels having a first arrangement of first to third sub-pixels, and second pixels having a second arrangement of the first to third sub-pixels, wherein the first sub-pixels of each of the first pixels arranged along the long side are aligned with each other, and the third sub-pixels of each of the second pixels arranged along the long side are not aligned with the third sub-pixels of the first pixels arranged along the long side.