Anti-Glare Antireflection Layer Control for Oblique Color Suppression
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Solution Overview
Problem
Existing anti-glare antireflection films suffer from visual issues such as coloring in an oblique direction and local luminescent spots due to non-uniform thickness of the low refractive index layer.
Innovation Solution
An anti-glare antireflection member with a low refractive index layer having a thickness difference (Δd) of 7.0 nm to 40.0 nm in a 2 mm×2 mm region, combined with a substrate, to suppress these visual effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a low refractive index layer is formed to suppress background reflection, then reflection of outside light is reduced, but coloring is visually recognized in oblique viewing directions and local luminescent spots appear due to thickness non-uniformity
Solution Approach 1:
The patent applies parameter changes by precisely controlling the thickness of the low refractive index layer within the range of 7.0 nm to 40.0 nm. This specific thickness parameter range optimizes the optical interference effects to suppress background reflection while minimizing the visual appearance of coloring and luminescent spots in oblique viewing directions.
Solution Approach 2:
The patent implements local quality by creating a non-uniform thickness distribution of the low refractive index layer across different regions of the anti-glare antireflection member. The thickness is locally adjusted to achieve optimal optical performance at each position, suppressing harmful reflections while maintaining visual quality across the entire surface.
2Object-affected harmful factors
If the low refractive index layer thickness is increased to improve antireflection performance, then outside light reflection is suppressed, but visual defects such as coloring and luminescent spots become more pronounced
Solution Approach 1:
The patent resolves this contradiction by establishing an optimal thickness parameter range of 7.0 nm to 40.0 nm for the low refractive index layer. Within this range, the optical interference effects sufficiently suppress outside light reflection while keeping the phase differences small enough to prevent visible coloring and luminescent spots from forming.
Solution Approach 2:
The patent ensures continuous optimal performance by maintaining the thickness within the specified range across the entire anti-glare antireflection member. This continuous control prevents localized variations that would generate visual defects while consistently suppressing reflection across the surface.
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 coloring in an oblique direction and minimizes the visibility of local luminescent spots, ensuring stable performance.
Implementation Method 1
an anti-glare layer and a low refractive index layer on a substrate
Implementation Method 2
low refractive index layer
Implementation Method 3
anti-glare layer
Data Source
AI summary
Provided is an anti-glare antireflection member capable of suppressing coloring in viewing in an oblique direction, and suppressing visual recognition of local luminescent spots. The anti-glare antireflection member comprises an anti-glare layer and a low refractive index layer on a substrate. The average of Δd is 7.0 nm or more and 40.0 nm or less, where Δd is a thickness difference of the low refractive index layer in an arbitrary 2 mm×2 mm region of the anti-glare anti refractive index layer.