Flexuous Data Lines for Glasses-Free 3D Display
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Solution Overview
Problem
Glasses-free 3D liquid crystal display devices using cylindrical lens technology suffer from degraded gray scale and moire fringes due to opaque data and gate lines, which affect display quality and comfort.
Innovation Solution
The use of periodically varying flexuous data and gate lines, which are angled relative to the lens array, reduces the unevenness of moire fringes and eliminates the center gate line, thereby enhancing the aperture ratio and minimizing moire fringes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If opaque data lines and gate lines are used in the display panel, then the electrical connection and control functions are ensured, but the gray scale is degraded and moire fringes are generated
Solution Approach 1:
The patent applies color changes by making the data lines and gate lines transparent or semi-transparent in the display region, allowing light to pass through these conductive lines. This resolves the contradiction by maintaining electrical connectivity while eliminating the harmful light blocking effect that causes gray scale degradation and moire fringes.
Solution Approach 2:
The patent implements local quality by applying different transparency characteristics to different regions of the display panel. The data lines and gate lines are made transparent in the display region where light transmission is critical, while maintaining their conductive function. This localized modification eliminates moire fringes in the display area without compromising electrical connection reliability.
2Reliability
If the width of data lines and gate lines is increased to improve signal transmission, then the electrical performance is improved, but the aperture ratio is reduced
Solution Approach 1:
By making the data lines and gate lines transparent, the patent allows them to maintain sufficient width for reliable signal transmission without proportionally reducing the aperture ratio. The transparent conductive lines do not block light, so their area does not contribute to the non-display region, effectively increasing the aperture ratio while maintaining electrical performance.
3Ease of manufacture
If the display panel structure is simplified to reduce manufacturing complexity, then the manufacturing cost is reduced, but the moire fringes become more prominent
Solution Approach 1:
The patent addresses moire fringes by making the data lines and gate lines transparent, which is a modification to the material properties rather than a complex structural change. This approach maintains manufacturing simplicity while effectively eliminating moire fringes, as it involves using transparent conductive materials in place of traditional opaque metal lines.
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 design improves the display quality by reducing moire fringes and increasing the aperture ratio, resulting in a more comfortable and effective glasses-free 3D viewing experience.
Implementation Method 1
Light emitted from the light source is split into light along directions towards the left eye and the right eye, respectively, after passing through the first sub-pixels, the second sub-pixels and the convex portions of the cylindrical lens array
Implementation Method 2
glasses-free 3D liquid crystal display device
Data Source
AI summary
A glasses-free 3D liquid crystal display device includes an array substrate, a plurality of data lines disposed horizontally and a plurality of gate lines disposed vertically on the array substrate, a plurality of pixel units defined by the data lines and the gate lines. A pixel unit includes a first sub-pixel and a second sub-pixel that are horizontally disposed and adjacent to each other. The data line is a periodically varying flexuous line extending horizontally, in addition, or alternatively, the gate line is a periodically varying flexuous line extending vertically. The display device reduces the unevenness of moire fringes.