Display Panel Cover Adhesion Structure for Reworkable Assembly
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Solution Overview
Problem
Existing display devices face challenges in achieving strong adhesion and coupling forces between the display panel and the cover, while also requiring easy reworkability for maintenance or repairs.
Innovation Solution
The display device incorporates a first adhesive layer on the cover, which is detachably connected to a connection layer on the display panel through a hole in the cover, along with additional adhesive layers to enhance adhesion and coupling forces, and allows for easy detachment for reworkability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a strong adhesive layer is used to improve adhesion force between display panel and cover, then adhesion force is improved, but reworkability deteriorates
Solution Approach 1:
The adhesive layer is segmented into multiple distinct layers: a first adhesive layer on the cover and a second adhesive layer on the display panel. This segmentation allows each layer to be optimized independently - the first layer can be designed for easy detachment while the second layer provides strong bonding, thus maintaining both reworkability and adhesion strength.
Solution Approach 2:
The connection layer acts as an intermediary between the display panel and the cover. It includes a receiving portion that receives the first adhesive layer and a protrusion portion that extends to the cover, facilitating controlled adhesion while enabling easy separation for rework or repair operations.
2Strength
If multiple adhesive layers are added to improve coupling force between display panel and cover, then coupling force is improved, but device complexity increases
Solution Approach 1:
The connection layer merges multiple functional elements into a single integrated component: it includes the receiving portion for the first adhesive layer, the protrusion portion extending to the cover, and the adhesive layer itself. This merging reduces the number of separate parts while maintaining strong coupling force through the multi-layer adhesive structure.
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 improves adhesion and coupling forces between the display panel and the cover, while enabling easy detachment and reassembly for maintenance, enhancing the device's reworkability.
Implementation Method 1
a first adhesive layer disposed on the cover, where the first adhesive layer is in contact with the cover, and in contact with the connection layer through the hole of the cover, and the first adhesive layer is detachably connected to the cover and the connection layer
Data Source
AI summary
A display device includes: a display panel including a front surface, on which a display area is define, and a rear surface opposite to the front surface; a connection layer disposed on the rear surface of the display panel; a cover disposed on the connection layer, where a hole overlapping the connection layer is defined through the cover; and a first adhesive layer disposed on the cover, where the first adhesive layer is in contact with the cover, and in contact with the connection layer through the hole of the cover, and the first adhesive layer is detachably connected to the cover and the connection layer.