Liquid Crystal Display Anti-Reflection Layer Design
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Solution Overview
Problem
Existing liquid crystal displays suffer from a conspicuous boundary between the display region and the light-shielding region due to a higher reflectance in the display area compared to the light-shielding area.
Innovation Solution
The implementation of a liquid crystal display design that includes a cover glass with a first anti-reflection layer for the display region and a second anti-reflection layer for the light-shielding region, where the reflectance at the front surface of the second anti-reflection layer is greater than that of the first anti-reflection layer, thereby equalizing the reflectance between the two regions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a single anti-reflection layer is used on the cover glass, then the manufacturing process is simple, but the boundary between the display region and light-shielding region becomes conspicuous due to reflectance difference
Solution Approach 1:
The patent applies local quality by dividing the anti-reflection layer into two distinct regions: a first anti-reflection layer with lower reflectance for the display region and a second anti-reflection layer with higher reflectance for the light-shielding region. This local differentiation ensures that each region has the optimal reflectance characteristics for its function, making the boundary inconspicuous while maintaining manufacturing feasibility through a unified layer structure approach
Solution Approach 2:
The patent segments the anti-reflection layer into multiple functional zones with different reflectance properties. By segmenting the cover glass surface into display region and light-shielding region with corresponding anti-reflection layers, the patent achieves uniform visual appearance across different functional areas while maintaining a relatively simple overall structure
2Illumination intensity
If the reflectance of the anti-reflection layer is reduced to minimize reflections, then the display quality improves, but the boundary with the light-shielding region becomes more conspicuous
Solution Approach 1:
The patent implements local quality by assigning different reflectance characteristics to different regions: the first anti-reflection layer in the display region has optimized low reflectance for high display quality, while the second anti-reflection layer in the light-shielding region has higher reflectance to match the display region visually, thereby eliminating conspicuous boundaries while preserving display performance
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 effectively reduces the reflectance difference between the display region and the light-shielding region, making the boundary between them inconspicuous and seamless.
Implementation Method 1
an anti-reflection layer formed on a front surface side of the cover glass
Implementation Method 2
an adhesive portion formed on a front surface side of the cover glass
Data Source
AI summary
A liquid crystal display includes: a liquid crystal module; a cover glass provided on the liquid crystal module; a light-shielding region formed on an outer periphery of a back surface side of the cover glass; and an anti-reflection layer formed on a front surface side of the cover glass. The anti-reflection layer includes a first anti-reflection layer corresponding to a display region for displaying an image and a second anti-reflection layer corresponding to the light-shielding region. A reflectance generated at a front surface of the second anti-reflection layer is greater than a reflectance generated at a front surface of the first anti-reflection layer.