Optical Laminated Body With Concavoconvex Antistatic Layer
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Solution Overview
Problem
Existing optical laminates fail to effectively prevent interface reflection and interference fringes at the interface between a light transparent base material and an antistatic layer, leading to reduced image visibility and contrast in display devices.
Innovation Solution
An optical laminate with an antistatic layer having a concavoconvex shape, where the convex height ranges from 40 nm to 300 nm, and an electroconductive polymer as the antistatic agent, improving adhesion and eliminating the interface reflection and interference fringes by enhancing the concavoconvex shape's properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a flat antistatic layer is provided on the light transparent base material, then the manufacturing process is simple, but interface reflection and interference fringes occur at the interface between the base material and the antistatic layer, reducing image visibility
Solution Approach 1:
The patent applies curvature by forming the antistatic layer with a concavoconvex surface structure having specific radius of curvature. This curved surface configuration eliminates the flat interface between layers, thereby preventing interface reflection and interference fringes while maintaining manufacturing feasibility through controlled curvature parameters.
Solution Approach 2:
The patent implements local quality by creating specific concave and convex regions on the antistatic layer surface with controlled dimensions (convex portion diameter: 0.1-10 μm, depth: 1-100 nm). These localized structural variations eliminate interface reflection at specific points while maintaining overall layer integrity and optical performance.
2Object-affected harmful factors
If the antistatic layer is made with a concavoconvex shape to eliminate interface reflection, then visibility improves, but the adhesion between layers may be compromised
Solution Approach 1:
The patent optimizes physical parameters of the concavoconvex structure (convex portion diameter: 0.1-10 μm, depth: 1-100 nm, radius of curvature: 0.01-1 μm) to achieve the optimal balance between eliminating interface reflection and maintaining layer adhesion. These controlled parameter changes ensure that the surface curvature reduces optical interference while the scale and distribution of convex portions preserve bonding strength.
Solution Approach 2:
The patent uses composite material structure combining the light transparent base material with the antistatic layer having concavoconvex surface. This composite configuration allows the antistatic layer to provide both optical functionality (reducing interference fringes) and mechanical functionality (maintaining adhesion through controlled surface morphology and material composition).
3Object-affected harmful factors
If a conventional antireflection laminate is provided to reduce external light reflection, then antireflection performance improves, but contamination preventive properties and adhesion are insufficient
Solution Approach 1:
The patent implements multi-functionality by integrating multiple functions into the antistatic layer: (1) electrical conductivity for contamination prevention, (2) concavoconvex surface structure for eliminating interface reflection, and (3) adhesion promotion through surface morphology. This single layer performs multiple functions that were previously requiring separate components, improving both optical performance and reliability.
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 optical laminate achieves improved mechanical strength, antireflection, and visibility by ensuring high adhesion between the light transparent base material and the antistatic layer, effectively eliminating interface reflections and fringes, thereby enhancing image display quality.
Implementation Method 1
it has been pointed out that interference fringes occur at the interface of a light transparent base material and an antistatic layer resulting in lowered image visibility
Implementation Method 2
interface reflection and interference fringes often occur at a mutually superimposed layer interface
Data Source
AI summary
The present invention discloses an antistatic optical laminate. The optical laminate comprises a light transparent base material and at least an antistatic layer provided on the light transparent base material, where the antistatic layer comprises an electroconductive polymer as an antistatic agent. Further, the surface of the antistatic layer has a concavoconvex shape, and the height of convexes in the antistatic layer are not less than 40 nm and not more than 300 nm.