Cover Panel Elastic Pattern for Controlled Detachment
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Solution Overview
Problem
Existing display devices face challenges in easy separation and reusability of components, leading to potential damage during detachment and increased manufacturing costs due to strong adhesive forces between the cover panel and display panel.
Innovation Solution
Incorporating an elastic pattern with higher elasticity than the impact absorbing layer on the cover panel, which protrudes beyond the edge of the impact absorbing layer, facilitating controlled detachment and reducing the force required for separation, thereby preventing damage to the display panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If strong adhesive force is used to secure the cover panel to the display panel, then the bonding strength and reliability are improved, but the difficulty of separation and reusability increase
Solution Approach 1:
The adhesive layer is segmented into multiple regions with different adhesive forces. The first adhesive layer has higher adhesive force for secure bonding, while the second adhesive layer has lower adhesive force to facilitate separation. This segmentation allows the cover panel to be reliably bonded during use but easily separated when needed.
Solution Approach 2:
Different regions of the adhesive layer are assigned different adhesive properties. The first adhesive layer region provides strong bonding in certain areas, while the second adhesive layer region provides weaker bonding in other areas. This local differentiation enables both strong overall bonding and easy separation at specific locations.
2Stability of the object's composition
If strong adhesive force is used to secure the cover panel, then the structural stability is improved, but the risk of damage to the display panel during separation increases
Solution Approach 1:
The adhesive layer is divided into two functional segments: the first adhesive layer for strong bonding and the second adhesive layer for easy separation. This segmentation allows the display panel to maintain structural stability during use while enabling damage-free separation by applying force to the second adhesive layer region.
Solution Approach 2:
The second adhesive layer acts as an intermediary that sacrificially breaks first to enable separation. When separation is needed, the second adhesive layer breaks at a lower force threshold, protecting the display panel from damage by providing a controlled failure point before the main bonding structure is compromised.
3Ease of operation
If the cover panel is designed for easy separation, then the reusability and ease of operation are improved, but the bonding strength and reliability deteriorate
Solution Approach 1:
The adhesive layer is segmented into regions with different bonding characteristics. The first adhesive layer provides strong bonding for reliability, while the second adhesive layer provides weak bonding for easy separation. This segmentation resolves the contradiction by assigning different functions to different regions.
Solution Approach 2:
Different local regions of the adhesive layer have different adhesive forces. The first adhesive layer region ensures reliable bonding where needed, while the second adhesive layer region enables easy separation at specific locations, thus satisfying both requirements simultaneously.
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 elastic pattern allows for easier and safer separation of the cover panel from the display panel, enhancing reusability and reducing the risk of damage during the separation process, thus improving the overall efficiency and cost-effectiveness of display device manufacturing.
Implementation Method 1
an elastic pattern EP having a higher level of elasticity than the impact absorbing layer BL
Data Source
AI summary
A cover panel and a display device, the cover panel including a heat sink layer; an impact absorbing layer on the heat sink layer; and an elastic pattern on at least one side of the impact absorbing layer.