Polycyclic Aromatic Polymer Film for Low-Temperature High Refractive Index
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Solution Overview
Problem
Existing methods for forming organic films with high refractive indices in devices like organic electroluminescent devices require high temperatures, which can deteriorate the characteristics of the organic functional layer and are not efficient in achieving desired film properties such as HAZE, film thickness, and adhesion.
Innovation Solution
A composition comprising a polycyclic aromatic hydrocarbon-containing polymer, a scattering agent, and a thiol-containing monomer is used to form a cured film with a high refractive index at a lower temperature, improving film adhesion and thickness, and including a photopolymerization initiator to enhance the polymerization process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If high temperature is used to solidify the organic material, then the film can be formed with desired properties, but the characteristics of the organic functional layer deteriorate
Solution Approach 1:
The patent changes the chemical composition parameters of the organic material by incorporating specific compounds (compound (1), compound (2), and compound (3)) that enable solidification at lower temperatures. This parameter change allows the film to be formed with desired properties while preventing deterioration of the organic functional layer characteristics.
Solution Approach 2:
The patent uses a composite organic material system comprising multiple specific compounds (compound (1), compound (2), and compound (3)) that work synergistically to achieve low-temperature solidification. This composite approach enables simultaneous achievement of good film properties and preservation of organic functional layer characteristics.
2Productivity
If traditional high temperature solidification is used, then the film can be formed, but the process is inefficient and produces suboptimal film properties
Solution Approach 1:
The patent changes the thermal parameters of the solidification process by using compounds with lower melting points and appropriate glass transition temperatures. This enables efficient solidification at reduced temperatures, improving productivity while achieving superior film properties including better HAZE, film thickness, and adhesion.
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 solution allows for the formation of a cured film with a high refractive index and improved adhesion and thickness at reduced temperatures, suitable for use in organic electroluminescent devices, while maintaining excellent transmittance and refractive index properties.
Implementation Method 1
a polycyclic aromatic hydrocarbon-containing polymer (I); a scattering agent (II); and a thiol-containing monomer (III)
Data Source
AI summary
A composition comprising at least a polycyclic aromatic hydrocarbon-containing polymer, a scattering agent, and a thiol-containing monomer.