Transparent Cover Laminate With Antifog Moisture-Absorbing Layers
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Solution Overview
Problem
Existing transparent cover members primarily focus on protection and lack additional functional capabilities.
Innovation Solution
A transparent laminate comprising a transparent substrate with a functional layer that includes an antifog layer, which can be further enhanced with moisture-absorbing and hydrophilic layers, providing antifog properties and improved visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a transparent substrate is used as a cover member, then protection function is provided, but additional functional capabilities are lacking
Solution Approach 1:
The patent applies multi-functionality by equipping the transparent substrate with multiple functional layers that provide antifog, antireflection, and moisture-permeable functions simultaneously. The first functional layer with antifog function and the second functional layer with moisture permeability allow the cover member to protect articles while also preventing fogging and enabling moisture transmission, thus achieving multiple functions in a single integrated structure.
Solution Approach 2:
The patent uses composite materials by combining the transparent substrate with functional layers made of specific materials. The first functional layer includes antifog agents or hydrophilic materials, while the second functional layer uses moisture-permeable materials, creating a composite structure that integrates protection, antifog, and moisture management capabilities.
2Reliability
If the first functional layer has a surface roughness Ra of 1 to 1000 nm, then antifog function is achieved, but manufacturing precision requirements increase
Solution Approach 1:
The patent applies parameter changes by specifying a surface roughness range (Ra of 1 to 1000 nm) for the first functional layer to achieve antifog function. This parameter optimization allows the surface to prevent fogging while remaining feasible for manufacturing, balancing performance requirements with production capabilities.
3Adaptability or versatility
If the transparent laminate includes multiple functional layers, then functionality is enhanced, but device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the functional layers into distinct segments with specific functions. The first functional layer is dedicated to antifog function, while the second functional layer handles moisture permeability. This segmentation allows each layer to be optimized independently while maintaining overall system functionality.
Solution Approach 2:
The patent integrates multiple functions into a unified laminate structure where the transparent substrate serves as both a protective barrier and a base for functional layers. The combination of antifog and moisture-permeable layers creates a multi-functional cover member that addresses multiple requirements simultaneously.
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 laminate enhances functionality beyond protection by ensuring clear visibility through antifog properties, suitable for outdoor use with monitoring cameras and other applications.
Implementation Method 1
a moisture absorbing layer that contains a hygroscopic resin material
Implementation Method 2
a hydrophilic layer that is layered on the moisture absorbing layer and is hydrophilic
Data Source
AI summary
A cover member according to the present invention includes a transparent substrate that has a first main surface and a second main surface and a transparent first functional layer that is layered on the first main surface of the substrate.