Direct-Cured Resin Window for Display Edge Protection
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Solution Overview
Problem
Existing display devices face challenges in achieving reliable window attachment methods that balance protection and image transmission, often requiring additional adhesive layers which can complicate manufacturing and affect the display's reliability and processability.
Innovation Solution
A display device design featuring a window with a first portion made of a resin with a higher curing rate, applied directly on the anti-reflection layer, and a second portion covering it, which includes a light blocking layer and a bending protective layer, allowing for direct coating without additional adhesives, enhancing reliability and processability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an additional adhesive layer is used to couple the window to the display module, then the attachment reliability is improved, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The patent removes the adhesive layer from the window coupling structure, extracting the harmful element that caused reliability issues. The window is directly disposed on the display module without any adhesive layer, eliminating the complexity and potential failure points associated with adhesive bonding while maintaining structural integrity
Solution Approach 2:
The patent merges the window and display module into a direct integrated structure. The window is formed by coating the display module surface, combining what were previously separate components (window and adhesive layer) into a unified structure that simplifies manufacturing and improves reliability
2Ease of manufacture
If a window is directly disposed on the display module without adhesive layers, then the manufacturing processability is improved, but the attachment reliability may deteriorate
Solution Approach 1:
The patent replaces the mechanical adhesive bonding system with a direct coating method. The window is formed by coating the display module surface, using material deposition and curing processes instead of mechanical adhesion, thereby achieving reliable attachment without adhesives
Solution Approach 2:
The patent changes the material properties and curing parameters of the coating material to ensure reliable attachment. By controlling the curing rate and material composition, the window achieves strong bonding to the display module through chemical curing rather than mechanical adhesion, maintaining reliability without adhesive layers
3Manufacturing precision
If the window includes multiple portions with different resins and curing rates, then the manufacturing precision and reliability are improved, but the process complexity increases
Solution Approach 1:
The patent divides the window into multiple portions with different resin compositions and curing rates. The first portion uses a resin with higher curing rate for precise edge definition, while the second portion uses a resin with lower curing rate for complete coverage, allowing each segment to serve its specific functional purpose
Solution Approach 2:
The patent applies different material properties to different regions of the window. The first portion (edge region) uses a resin with higher curing rate for precise shape definition, while the second portion (coverage region) uses a resin with lower curing rate for complete filling, optimizing each local area for its specific function
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
This solution improves the reliability and manufacturing processability of display devices by providing a robust and transparent window attachment method that reduces bending stress and maintains image transmission efficiency.
Implementation Method 1
a first portion including a first resin and disposed on an edge portion of the anti-reflection layer, and a second portion including a second resin and covering at least a portion of the first portion, and a curing rate of the first resin is greater than a curing rate of the second resin
Implementation Method 2
forming a window coating layer on the anti-reflection layer... curing the dam and the resin
Data Source
AI summary
Provided is a display device which includes a display panel, an anti-reflection layer disposed on the display panel, and a window disposed on the anti-reflection layer. The window includes a first portion including a first resin and disposed on the edge portion of the anti-reflection layer, and a second portion including a second resin and covering at least a portion of the first portion. The curing rate of the first resin is greater than the curing rate of the second resin. Thus, the display device may include the window having a small thickness and a smooth edge portion.