Resin Composition for Display Window Coating
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Solution Overview
Problem
The physical properties of polymer compounds used in display device windows are impaired by moisture in high-temperature and high-humidity environments, leading to potential degradation and reduced durability.
Innovation Solution
A resin composition comprising a polymer resin, fluoride resin, and radical polymerization initiator, including specific monomers and additives, is used to form a coating layer that minimizes property impairment by moisture and hydrogen ion generation, enhancing durability and protection against external impacts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a polymer compound is used to form a window in a direct coating method, then the window can protect the display module from external impacts, but the physical properties of the polymer compound are impaired by moisture in high-temperature and high-humidity environments
Solution Approach 1:
The patent uses a composite resin composition comprising multiple components: polymer resin (epoxy siloxane-based compound, (meth)acrylate monomer, and tetrahydrofurfuryl acrylic acid monomer), fluoride resin (10-20 wt%), and radical polymerization initiator. This composite formulation combines the protective strength of polymer compounds with the moisture resistance of fluoride resin, resolving the contradiction between strength and reliability in humid environments
2Strength
If a polymer compound is used for the window coating, then it can provide impact protection, but hydrogen ions are generated during the polymerization process which impairs the physical properties of the coating layer
Solution Approach 1:
The patent changes the polymerization mechanism from cationic to radical polymerization by selecting appropriate initiators (acetophenone-based, sulfonium salt-based, or benzophenone-based initiators at 1-5 wt%). This parameter change eliminates hydrogen ion generation during polymerization while maintaining the impact resistance properties of the coating layer
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 coating layer effectively prevents moisture-induced degradation and maintains physical properties in high-temperature and high-humidity conditions, protecting the display module from external impacts while maintaining visibility and reducing hydrogen ion generation during polymerization.
Implementation Method 1
a resin composition including a polymer resin, a fluoride resin, and a radical polymerization initiator
Implementation Method 2
materials with waterproof properties are desired to be used a the polymer compound
Implementation Method 3
the polymer resin includes at least one selected from an epoxy siloxane-based compound
Data Source
AI summary
A resin composition includes a polymer resin, a fluoride resin, and a radical polymerization initiator, where the polymer resin includes at least one selected from an epoxy siloxane-based compound, a (meth)acrylate monomer, and a tetrahydrofurfuryl acrylic acid.