Touch Screen Assembly Impact Protection
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Solution Overview
Problem
Flat panel displays, such as LCDs, are prone to damage from frontal impacts and are not easily protected by existing touch screen assemblies, which often require expensive tempered glass and can delaminate under temperature and atmospheric changes, leading to high costs and repair challenges in unmonitored locations like gaming consoles.
Innovation Solution
A unitary touch screen assembly is created using a transparent panel, typically glass or plastic, with a touch screen device spaced a predetermined distance away and bonded with a UV-curable adhesive, optionally with a gasket for added protection, allowing for easy removal and replacement, and attachment to a flat panel display using adhesive strips.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a touch screen device is attached directly to the flat panel display using permanent adhesive, then the touch screen provides interaction capability, but the flat panel display becomes vulnerable to impact damage and cannot be easily replaced if damaged
Solution Approach 1:
The patent divides the assembly into separate components: a protective front panel (tempered glass or plastic) and the flat panel display, connected through a removable adhesive relationship. This segmentation allows the display to be replaced independently if damaged, while the front panel remains as a protective and interactive element.
Solution Approach 2:
The patent applies adhesive to the front panel or display beforehand in a controlled manner, allowing for proper positioning and bonding. The adhesive is applied in advance to ensure proper alignment and bonding strength while maintaining the ability to remove and replace the display if needed.
2Strength
If tempered glass is used to protect the flat panel display, then impact resistance is improved, but the assembly becomes prone to delamination under temperature and atmospheric changes
Solution Approach 1:
The patent changes the parameters of the adhesive system by selecting materials and bonding methods that are specifically designed to withstand temperature variations and atmospheric changes. The adhesive is chosen or formulated to maintain bonding strength across a range of environmental conditions, preventing delamination while preserving impact resistance.
3Strength
If a unitary assembly of touch screen and display is created, then structural integrity is improved, but repairability and replacement cost increase
Solution Approach 1:
The patent maintains structural integrity through a unified design while enabling segmentation for repair purposes. The removable adhesive connection allows the display to be separated from the front panel and replaced independently, providing ease of repair while maintaining the appearance and function of a unitary assembly during normal operation.
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 provides resilient protection to flat panel displays, reduces the risk of delamination, and allows for cost-effective and easy repair by forming a unitary assembly that can absorb impact stress and maintain optical clarity, while being removably attached to the display.
Implementation Method 1
bonded with a UV-curable adhesive
Data Source
AI summary
A touch screen assembly for use with a display, such as a flat panel display. The touch screen assembly includes a transparent panel, preferably in the form of a panel of tempered glass adhered to a touch screen panel. Consoles having touch screen assemblies are also disclosed.