Void-containing layer with modified nanoparticles
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The penetration of pressure-sensitive adhesives into voids in void-containing layers is a challenge, as high elastic modulus adhesives prevent penetration but also reduce adhesive force, and forming a separate penetration suppressing layer increases manufacturing processes.
Innovation Solution
A void-containing layer with nanoparticles modified by a compound having a surface orientation is used, which has a void fraction of 35 vol %, allowing direct lamination with pressure-sensitive adhesive layers without separate penetration suppression, physically preventing adhesive penetration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the elastic modulus of the pressure-sensitive adhesive is increased to prevent penetration into voids, then penetration resistance is improved, but adhesive force deteriorates
Solution Approach 1:
The invention applies local quality by creating a penetration suppressing layer with specific properties (high elastic modulus, low void fraction) that is distinct from the main void-containing layer. This localized structural modification allows the adhesive layer to have different functional zones: one that resists penetration and another that provides bonding, thereby resolving the contradiction between penetration resistance and adhesive force
Solution Approach 2:
The invention segments the adhesive structure into multiple layers: a void-containing layer for optical function, a penetration suppressing layer for mechanical support and penetration prevention, and a pressure-sensitive adhesive layer for bonding. This segmentation allows each layer to optimize its specific function without compromising the others, particularly enabling the adhesive layer to maintain both penetration resistance and adhesive force
2Reliability
If a penetration suppressing layer is formed to prevent adhesive penetration, then penetration resistance is improved, but manufacturing complexity increases
Solution Approach 1:
The invention merges the penetration suppressing layer and the void-containing layer into a integrated laminated structure that functions as a single component. By combining these layers with complementary functions (optical performance and penetration suppression) into one laminated assembly, the invention reduces manufacturing complexity while maintaining penetration resistance
Solution Approach 2:
The invention uses composite materials by laminating different material layers together: a void-containing layer (for low refractive index and optical function) and a penetration suppressing layer (for mechanical support). This composite structure achieves penetration resistance without requiring separate manufacturing processes for each functional layer, as the lamination itself creates the integrated solution
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 approach effectively prevents pressure-sensitive adhesive penetration into voids, maintaining high adhesive force while reducing manufacturing complexity by eliminating the need for a separate penetration suppressing layer.
Implementation Method 1
nanoparticles, surfaces of which being modified with a compound having a surface orientation
Data Source
AI summary
The present invention provides a void-containing layer in which a pressure-sensitive adhesive or an adhesive is less likely penetrated into voids. The void-containing layer of the present invention includes: nanoparticles, surfaces of which are modified with a compound having a surface orientation, wherein the void-containing layer has a void fraction of 35 vol %.