Film Structural Member With Particle Layer For Visibility And Bendability
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Solution Overview
Problem
Existing film structural members with metal wiring on transparent substrates face issues with visibility enhancement due to reflectance, and are prone to wiring breakage when bent, limiting their flexibility.
Innovation Solution
A film structural member with recessed portions on a transparent substrate, featuring metal wiring and a particle layer composed of particles with an average diameter of 300 nm or smaller, which reduces reflectance and maintains flexibility upon bending.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a blackened layer is provided on the metal wiring to reduce reflectance and improve visibility, then the visibility of the film structural member is improved, but the wiring breaks when the transparent substrate is bent due to the low toughness of the blackened layer
Solution Approach 1:
The invention changes the particle size parameter of the blackening layer to 300 nm or smaller, which fundamentally alters the mechanical properties of the layer. This parameter change reduces the layer's toughness and flexibility, allowing it to accommodate bending without cracking, thereby resolving the contradiction between visibility improvement and wiring integrity during bending.
Solution Approach 2:
The invention applies local quality by creating a particle layer with specific local characteristics (particle size ≤300 nm) only where needed on the metal wiring. This localized modification enables the blackening layer to have different properties from conventional layers, achieving both visibility improvement and bending compatibility in the specific region where it is applied.
2Ease of manufacture
If a blackened layer is provided on the metal wiring to improve visibility, then the reflectance is reduced, but the bending of the transparent substrate is strictly disallowed due to breakage of the blackened layer
Solution Approach 1:
By changing the particle size parameter to 300 nm or smaller, the invention creates a blackening layer that maintains its optical function (reflectance reduction) while gaining the mechanical flexibility needed for bendable applications. This parameter change enables the substrate to be bent without causing layer breakage.
Solution Approach 2:
The invention employs a thin film structure with particles of 300 nm or smaller that can flex and deform with the substrate during bending. This thin, fine-particle film structure acts as a flexible coating that does not restrict substrate bendability while still providing the desired optical blackening effect.
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 particle layer significantly reduces reflectance, improving visibility and allowing the film structural member to be used in flexible devices without breaking, achieving a balance between visibility and bendability.
Implementation Method 1
a particle layer that is provided on the metal wiring and is configured as an aggregate of particles having an average particle diameter of 300 nm or smaller
Implementation Method 2
by providing blackened layer 5 on metal layer 4 of transparent substrate 2, reflectance of metal layer 4 is reduced
Data Source
AI summary
A film structural member includes a recessed portion on a transparent substrate, metal wiring on a base of the recessed portion, and a particle layer on the metal wiring. The particle layer is configured as an aggregate of particles having an average particle diameter of 300 nm or smaller.