Display Back Cover Latch Structure With Elastic Holder Rubber
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Solution Overview
Problem
Existing display devices face challenges in simplifying the fastening structure between the module cover and the back cover, which contributes to thickness and manufacturing costs, and are prone to damage from thermal expansion due to material differences.
Innovation Solution
A display device with a holder rubber made of an elastic material, featuring a latch and latch hole configuration that provides stable fastening through an oval-shaped holder rubber and a latch with an extending portion and hook, allowing for thermal expansion compensation and a simple, cost-effective assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a conventional fastening structure with multiple components is used to connect the module cover and back cover, then the fastening strength is sufficient, but the device thickness increases and manufacturing cost rises
Solution Approach 1:
The holder rubber integrates multiple functions into a single component: it acts as both a fastening element and a thermal expansion compensation mechanism. The latch structure combines the locking function with the holder rubber, eliminating the need for separate fastening components and reducing overall structural complexity while maintaining adequate fastening strength
Solution Approach 2:
The holder rubber is made of elastic material that can deform flexibly to accommodate thermal expansion differences between the module cover and back cover. This flexible rubber component replaces rigid multi-part fastening structures, reducing thickness and complexity while providing sufficient fastening strength through its elastic properties
2Adaptability or versatility
If different materials are used for the module cover and back cover, then the device can accommodate thermal expansion differences, but the fastening structure becomes more complex and prone to damage
Solution Approach 1:
The holder rubber changes its physical parameters (shape, volume) in response to thermal expansion forces. The elastic material allows the rubber to deform and absorb thermal stress, preventing damage to the fastening structure while accommodating the thermal expansion differences between different materials used in the module cover and back cover
Solution Approach 2:
The elastic holder rubber acts as a cushioning element that anticipates and absorbs thermal expansion forces before they can cause damage to the fastening structure. By incorporating this compliant element in advance, the design prevents potential damage from thermal stress while maintaining fastening reliability
3Length of moving object
If the fastening structure is simplified to reduce thickness, then the device becomes thinner, but the fastening stability may be compromised
Solution Approach 1:
The holder rubber provides dynamic fastening stability through its elastic properties. Rather than relying on a complex static multi-component structure, the single rubber component can dynamically adapt to thermal and mechanical stresses, maintaining stable fastening while enabling a thinner overall device design
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 enables a thin, stable fastening structure that reduces manufacturing costs and withstands thermal expansion, facilitating a slim display device design.
Implementation Method 1
a holder rubber made of an elastic material, fixed to the holder hole
Implementation Method 2
receiving the error resulted from the thermal expansion
Data Source
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AI summary
Disclosed is a display device including a display panel, a module cover supporting a rear surface of the display panel and including a holder hole defined therein, a back cover covering a rear surface of the module cover, a holder rubber made of an elastic material, fixed to the holder hole, and including a latch hole defined therein, and a latch protruding from a front surface of the back cover and fastened to the latch hole of the holder rubber. Because a fastening structure is thin, the thin display device is implemented.