Window Assembly Masking Member for Display Device Protection
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Solution Overview
Problem
During the manufacturing process of display devices, the protective films adhered to windows can contaminate and damage the window assemblies, especially when the adhesive layers come into contact with specific surfaces, acting as foreign materials and complicating the processing and transferring stages.
Innovation Solution
A window assembly with a protective film assembly is designed, featuring a cover member with a masking member derived from a curable ink composition, including acrylic resin and potentially a photoinitiator, which is applied to overlap the adhesive layer to prevent contamination and damage. The masking member is cured to form a thin layer that minimizes contact with the window, reducing the risk of contamination and simplifying the removal process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a protective film with adhesive layer is adhered to the window, then the window is protected from external impacts during transfer and loading, but the adhesive layer may contact the window surface and act as a foreign material causing contamination
Solution Approach 1:
The protective film is divided into two functional parts: a base part that adheres to the window for protection, and a protruding part that extends beyond the window edges. The adhesive layer is confined to the base part, preventing it from contacting the window surface while maintaining protective coverage.
Solution Approach 2:
The protruding part of the protective film acts as an intermediary barrier that prevents the adhesive layer from直接接触 the window surface. This mediator structure allows the adhesive to fulfill its bonding function while isolating it from the window to avoid contamination.
2Productivity
If the protective film is removed after transfer and loading, then the window is free for final assembly, but the adhesive layer may have already contaminated the window surface
Solution Approach 1:
By segmenting the protective film into a base part with adhesive and a protruding part without adhesive, the design ensures that only the non-adhesive protruding part contacts the window during removal, preventing contamination while maintaining processing efficiency.
3Object-affected harmful factors
If the masking member is made thin to minimize contact with the window, then contamination risk is reduced, but the masking member may be more fragile during handling
Solution Approach 1:
The masking member is constructed from composite materials including curable ink composition, acrylic resin, and photoinitiator. This composite structure provides both the thin profile needed to minimize contamination and the structural strength required for handling during the manufacturing process.
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 effectively prevents contamination and damage to the window assembly during processing and transferring, while also reducing the number of processes involved, enhancing the reliability and efficiency of the manufacturing method.
Implementation Method 1
a masking member disposed on the adhesive layer to overlap at least a portion of the second portion, wherein the masking member includes a material derived from a curable ink composition
Data Source
AI summary
A window assembly includes a cover member including a front surface and a rear surface opposite to the front surface, and a protective film assembly disposed on the front surface or the rear surface of the cover member, where the protective film assembly includes a base part including a first portion overlapping the cover member, and a second portion protruding from the first portion, an adhesive layer disposed on the base part and between the cover member and the base part, and a masking member disposed on the adhesive layer to overlap at least a portion of the second portion, where the masking member includes a material derived from a curable ink composition.