Anti-glare Film-Attached Substrate with Partial Surface Exposure
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Solution Overview
Problem
Existing antiglare film-coated substrates do not allow for the transmission of light rays, limiting the adjustment of gloss levels and image sharpness, while maintaining effective antiglare performance.
Innovation Solution
An antiglare film-attached substrate design where a portion of the substrate's surface is exposed, allowing light transmission, with an antiglare film covering the remaining surface, featuring specific roughness and particle characteristics to adjust gloss levels and enhance image sharpness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If an antiglare film is formed on the entire surface of the substrate, then antiglare properties are improved, but light transmission is blocked and image sharpness deteriorates
Solution Approach 1:
The substrate surface is segmented into two distinct regions: an exposed region where the substrate surface is directly visible and allows sharp light transmission, and a coated region where the antiglare film is formed to provide diffuse reflection and antiglare properties. This spatial segmentation resolves the contradiction by allowing both functions to coexist in different areas.
Solution Approach 2:
Different regions of the substrate are given different optical qualities: the exposed region maintains high transparency and sharpness for clear image transmission, while the coated region has diffuse scattering properties for antiglare effect. This local differentiation allows each region to optimize its specific function without compromising the other.
2Object-affected harmful factors
If an antiglare film is formed on the substrate surface, then reflection of lighting equipment is reduced, but the substrate cannot transmit light rays effectively
Solution Approach 1:
The substrate is divided into exposed and coated regions, where the exposed region allows direct light transmission while the coated region handles reflection control. This segmentation enables both light transmission and reflection reduction to occur simultaneously in different areas.
Solution Approach 2:
Instead of coating the entire substrate surface, the antiglare film is applied only to a portion of the surface (the coated region). This partial application allows the substrate to maintain light transmission capability through the exposed region while still achieving reflection reduction through the coated region.
3Object-affected harmful factors
If the surface of the substrate is made uneven to create antiglare film, then antiglare effect is achieved, but gloss level adjustment becomes limited
Solution Approach 1:
The substrate surface is segmented into exposed and coated regions, enabling independent control of gloss levels. The exposed region provides a baseline gloss level, while the coated region with its uneven surface provides antiglare effect. By adjusting the area ratio between these regions, various overall gloss levels can be achieved while maintaining antiglare properties.
Solution Approach 2:
Different regions have different surface qualities: the exposed region has a smooth substrate surface for controlled gloss, while the coated region has an uneven surface for antiglare effect. This local quality differentiation allows versatile gloss level adjustment by varying the proportion of each region type.
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 substrate achieves adjustable gloss levels and maintains sharpness of transmitted images while providing effective antiglare properties by allowing partial light transmission through the exposed surface.
Implementation Method 1
the antiglare film has an uneven surface with arithmetic average roughness Ra of 0.01 μm or more, which scatters light rays to achieve antiglare properties
Data Source
Figure 1A~1B
Figure 2A~2B
AI summary
An antiglare film-attached substrate (1a) includes a substrate (10) and an antiglare film (20). The substrate (10) includes a first principal surface (11), and a portion of the first principal surface (11) is exposed. The antiglare film (20) covers another portion of the first principal surface (11). The antiglare film-attached substrate (1a) includes a second principal surface (25) having unevenness and formed of the first principal surface (11) and the surface of the antiglare film (20). When the second principal surface (25) is viewed in plan, the area of the antiglare film (20) accounts for 10 to 90% of the area of the second principal surface (25).