Variable-Thickness Adhesive Assembly for Electronic Device Edges
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Solution Overview
Problem
Existing electronic devices face challenges in maintaining structural integrity and aesthetic appeal while accommodating the integration of multiple functional components, particularly as they are downsized for portability and enhanced functionality.
Innovation Solution
The electronic device incorporates a housing with a supporting member and a cover, featuring an adhesive member with varying adhesive layer thicknesses to provide structural support and aesthetic continuity, including a base layer between the supporting member and cover, with at least one adhesive layer having a larger thickness towards the edge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the adhesive member uses uniform thickness adhesive layers, then the manufacturing process is simple, but the structural integrity and aesthetic appeal near edges are compromised
Solution Approach 1:
The adhesive member employs varying thickness adhesive layers where the first adhesive layer near the edge has a first thickness and the second adhesive layer in the interior has a second thickness different from the first. This local differentiation provides enhanced structural integrity and aesthetic appeal at edges while maintaining simpler construction in the interior region.
2Reliability
If the adhesive member includes multiple layers with varying thicknesses, then the bonding strength and aesthetic appearance are improved, but the manufacturing complexity increases
Solution Approach 1:
The adhesive member is segmented into a base layer and multiple adhesive layers with different thicknesses. The first adhesive layer is positioned between the base layer and the cover near the edge, while the second adhesive layer is positioned between the base layer and the supporting member in the interior. This segmentation allows optimized bonding strength in different regions while maintaining a systematic assembly process.
3Shape
If the adhesive layer thickness is increased towards the edge, then the aesthetic continuity and structural support are enhanced, but the material consumption increases
Solution Approach 1:
The adhesive member applies thicker adhesive layers (first adhesive layer) only in the peripheral region near the edge where aesthetic continuity and structural support are critical. The interior region uses thinner adhesive layers (second adhesive layer), thereby achieving the desired shape quality while minimizing overall adhesive material consumption.
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 design enhances structural integrity and aesthetic appeal by providing a robust bonding mechanism that maintains device shape and functionality, while allowing for compact design and easy assembly.
Implementation Method 1
an adhesive member disposed between the supporting member and the cover, and including a first area and a second area extending from the first area toward the edge of the supporting member, wherein the adhesive member includes an adhesive layer including a first adhesive layer coupled to the supporting member and a second adhesive layer spaced apart from the first adhesive layer and coupled to the cover
Data Source
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AI summary
The present disclosure relates to an electronic device. The electronic device according to one embodiment of the present disclosure comprises: a housing including a support member; a cover of which at least a portion is arranged to face the support member, and which extends toward the edge of the support member; and an adhesive member which is arranged between the support member and the cover and which has a first region and a second region extending from the first region toward the edge of the support member, wherein the adhesive member includes: a pressure sensitive adhesive layer having a first pressure sensitive adhesive layer coupled to the support member, and a second pressure sensitive adhesive layer spaced apart from the first pressure sensitive adhesive layer and coupled to the cover; and a base material layer arranged between the first pressure sensitive adhesive layer and the second pressure sensitive adhesive layer, and, in the first pressure sensitive adhesive layer and/or the second pressure sensitive adhesive layer, the second region is thicker than the first region.