Transparent Housing Structure with Inner Pattern and Color Layers
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Solution Overview
Problem
Existing electronic device housing structures face challenges in achieving consistent and seamless color and pattern application, particularly on curved surfaces, often resulting in poor adhesion and potential cracking when films are applied to inner surfaces.
Innovation Solution
A transparent housing structure with a transparent pattern layer and a color layer applied to the inner surfaces, where the pattern layer is fixed using an adhesive or insert-injection method, ensuring the color layer covers the pattern layer and connection regions, providing a uniform appearance and improved durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a film is applied to the inner surface of a housing, then various patterns and colors can be achieved, but the film may not correctly adhere to curved surfaces or cracks may be generated
Solution Approach 1:
The housing is divided into multiple segments (first housing, second housing, third housing) that can be separately manufactured and assembled. This segmentation allows each part to be optimized for film application while maintaining overall structural integrity, preventing cracking at curved surfaces by breaking the continuous curved surface into manageable segments.
Solution Approach 2:
The housing structure is designed with pre-formed connection regions and positioning structures that prepare the surface for film application. The connection regions between housing segments are designed to accommodate film continuity, and positioning structures ensure proper alignment before film application, preventing adhesion failures.
2Shape
If a film is applied to curved surfaces, then appearance quality can be improved, but adhesion fails and cracking occurs
Solution Approach 1:
Curved surfaces are divided into multiple housing segments with relatively flatter individual surfaces. Each segment can be manufactured with controlled curvature that is manageable for film application, while the overall assembly achieves the desired curved appearance. This segmentation prevents film cracking by avoiding excessive curvature on any single surface.
Solution Approach 2:
Different regions of the housing are designed with different surface qualities - some regions have curved surfaces for aesthetic purposes while connection regions have flattened or transition surfaces optimized for film adhesion. This local differentiation allows curved surfaces to maintain their appearance while connection regions ensure reliable film attachment.
3Shape
If the color layer covers the pattern layer and connection regions, then consistent and seamless appearance is achieved, but manufacturing complexity increases
Solution Approach 1:
The color layer is designed to extend continuously across housing segments and cover both patterned regions and connection regions. This merging of the color layer across segment boundaries creates a seamless appearance that hides the segmentation, making the housing look like a single continuous piece while maintaining the benefits of segmented construction.
Solution Approach 2:
The color layer acts as an intermediary element that bridges the gap between separate housing segments. By extending the color layer across connection regions, it visually connects the segments and creates a seamless appearance, while the underlying segmented structure remains intact for manufacturing and assembly purposes.
Data Source
AI summary
Provided is an electronic device including a display arranged on a front face of the electronic device; and a housing structure forming at least a part of a side exterior of the electronic device and a back exterior of the electronic device, wherein the housing structure may include: a transparent housing comprising a side region arranged on a side face of the electronic device, a back region arranged on a back face of the electronic device, and a connection region connecting the side region with the back region; a transparent pattern layer arranged on an inner surface of the back region of the transparent housing and comprising a pattern; and a color layer disposed on an inner surface of the transparent pattern layer in the back region of the transparent housing, and disposed on an inner surface of the side region of the transparent housing.