Support Part for Electronic Device Display Module
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing security systems for electronic devices, such as payment terminals, face issues with deformation and potential damage to components when implementing the 'false touch' technique to detect disassembly attempts, as the pressurizing device exerts force on support parts, leading to deformation and reduced security due to visible cues for potential fraudsters.
Innovation Solution
A support part with an attachment element, such as a tab or cylinder, is integrated into the PCB to retain the pressurizing device, stabilizing its compression and reducing the force exerted on the support part, thereby minimizing deformation and maintaining component integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the pressurizing device is compressed to activate the false key for security detection, then the security function is improved, but the support part and components above it deform due to the exerted force
Solution Approach 1:
The support part is divided into a first support portion and a second support portion separated by a recess. The pressurizing device is positioned in the recess, isolating the compression force to a localized area rather than distributing it across the entire support part. This segmentation prevents deformation of components mounted on the support part while maintaining the security detection function.
2Reliability
If the pressurizing device exerts force on the support part to detect disassembly attempts, then the security detection capability is improved, but visible deformation cues are created that help fraudsters locate false touches
Solution Approach 1:
The recess is positioned at a specific location on the support part, concentrating the compression force in a hidden, localized area. This localizes the mechanical action away from visible surfaces, preventing the creation of observable deformation cues that would otherwise assist fraudsters in locating and exploiting false touch points.
3Reliability
If the pressurizing device is compressed between the support part and PCB board, then the false key activation is improved, but the force exerted on the support part causes deformation
Solution Approach 1:
The recess acts as an intermediary structure between the pressurizing device and the support part. It provides a dedicated space for the pressurizing device, allowing force transmission to the false key on the PCB board while preventing direct force application to the support part's mounting surfaces, thus eliminating deformation.
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
The invention relates to a support part (23) for an LCD display module (24) of an electronic device (2), comprising at least one element (232) for receiving a press device (12) for pressing a dummy key (101), said part being characterised in that it comprises at least one attachment element for securing the part to a printed circuit board (10) of the electronic device (2) such that the press device (12) is compressed between the support part (23) and the printed circuit board (10).