Stereoscopic Display Sub-Pixel Aperture Light Distribution
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Solution Overview
Problem
Naked-eye type stereoscopic display devices face challenges in achieving high-definition stereoscopic display while minimizing 3D moiré and 3D crosstalk due to processing precision variations, particularly with narrow-pitch sub-pixels and large numbers of pixels, leading to discomfort and quality fluctuations.
Innovation Solution
The device incorporates a display panel with sub-pixels arranged in a matrix, where each sub-pixel has overlapping and non-overlapping regions, with a longitudinal light amount that fluctuates continuously from the center to the edges, ensuring the sum of overlapping regions' light amounts exceeds the central light amount, optimizing light distribution for reduced moiré and improved stereoscopic display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If narrow-pitch sub-pixels are used to achieve high-definition display, then pixel density and resolution are improved, but processing precision variations increase causing 3D moiré and 3D crosstalk
Solution Approach 1:
The patent applies local quality by creating non-uniform light amount distributions within specific regions of the sub-pixel aperture parts. The aperture parts are divided into first regions (with higher light amounts) and second regions (with lower light amounts), allowing different portions of the sub-pixel to have different optical characteristics. This local differentiation helps suppress 3D moiré and 3D crosstalk while maintaining high display resolution through narrow-pitch sub-pixel arrangements.
2Productivity
If sub-pixels are arranged in matrix form to achieve high pixel density, then productivity and resolution are improved, but overlapping region control becomes difficult leading to 3D moiré
Solution Approach 1:
The patent implements local quality by creating distinct first regions and second regions within the aperture parts of sub-pixels arranged in matrix form. The first regions have higher light amounts while the second regions have lower light amounts, allowing precise control over light distribution in overlapping areas. This regional differentiation suppresses 3D moiré effects that typically arise from matrix-arranged sub-pixels, enabling high pixel density without the harmful interference patterns.
Solution Approach 2:
The patent applies parameter changes by varying the light amount parameters across different regions of the aperture parts. The first regions are designed with higher light amount parameters while the second regions use lower light amount parameters. This parameter variation within the sub-pixel structure allows the system to maintain high pixel density in matrix arrangements while controlling the overlapping region characteristics to eliminate 3D moiré.
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
This configuration enables fine stereoscopic display with reduced 3D moiré and 3D crosstalk, even with high-definition and high-pixel-density displays, enhancing observer comfort and image quality.
Implementation Method 1
a light-ray control module which is provided by opposing to the display panel for controlling light rays towards the first direction
Data Source
AI summary
To provide a naked-eye type stereoscopic display device which can achieve a fine stereoscopic display property while achieving high-definition display and high yield. An aperture part includes overlapping regions which overlap with an aperture part or another aperture part neighboring to each other in a second direction and a non-overlapping region which does not overlap. Provided that a light amount emitted from a linear aperture of the aperture part in parallel to a second direction is “longitudinal light amount”, the non-overlapping region includes longitudinal light amount fluctuating regions where the longitudinal light amount changes continuously from roughly a center of the aperture part towards both ends of the first direction, respectively. The sum of the longitudinal light amounts of the two overlapping regions overlapping with each other at a same position in the first direction is larger than the longitudinal light amount in roughly the center of the aperture part.