Protective Polymer Resin for Window Module Ink Layer Durability
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Solution Overview
Problem
During the manufacturing process of display apparatuses, failures often require a rework process that involves removing adhesive layers from window modules, which can damage or smear ink layers due to physical or chemical treatments.
Innovation Solution
A window module with a protective layer made from a polymer resin polymerized from specific monomers, including an acrylic monomer with a hydroxy group, an epoxy group, a phenyl group, and a bicyclic alkyl group, providing improved chemical resistance and abrasion resistance to prevent damage during the rework process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If physical or chemical treatment is performed to remove adhesive layer during rework process, then adhesive layer can be removed, but ink layer is damaged or smeared
Solution Approach 1:
The patent introduces a protective layer as an intermediary between the ink layer and the external environment during rework processes. This protective layer allows adhesive removal treatments to be performed on the window module without directly exposing the ink layer to harmful physical or chemical treatments, thus preventing ink damage while enabling ease of repair
Solution Approach 2:
The protective layer is applied in advance before the ink layer is exposed to potential damage during rework. By establishing this protective barrier beforehand, the ink layer is pre-protected against smearing and damage that would occur during subsequent adhesive removal processes
2Reliability
If conventional protective coatings are used, then basic protection is provided, but chemical resistance and abrasion resistance are insufficient
Solution Approach 1:
The protective layer is formulated as a composite material containing polymer resin as the base and dispersed inorganic particles. This composite structure provides enhanced chemical resistance from the polymer matrix and improved abrasion resistance from the inorganic particle reinforcement, simultaneously addressing both types of damage resistance
Solution Approach 2:
The patent modifies the protective layer's material parameters by selecting specific polymer resins with appropriate molecular structures and controlling the size, shape, and distribution of inorganic particles. These parameter changes optimize the balance between chemical resistance and abrasion resistance for the protective 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 polymer resin layer effectively protects the ink layer from damage during the rework process, maintaining the integrity of the window module and enhancing the efficiency of the manufacturing process by preventing smudging and abrasion.
Implementation Method 1
The polymer resin may be polymerized from monomers including a first monomer, a second monomer, and at least one of a third monomer or a fourth monomer
Data Source
AI summary
A window module including a window, a first print layer, an ink layer, and a protective layer covering the ink layer. The protective layer includes a polymer resin polymerized from monomers including a first monomer which is an acrylic monomer substituted with a hydroxy group, a second monomer having an epoxy group, and at least one of a third monomer having a substituted or unsubstituted phenyl group or a fourth monomer which is an acrylic monomer having a substituted or unsubstituted bicyclic alkyl group, and thus, has excellent durability, chemical resistance, and abrasion resistance.