Magnet-Coupled Display Module Grounding for EMI and Waterproofing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Display apparatuses generate electromagnetic interference (EMI) that can affect internal components and other electronic devices, necessitating a stable and efficient emission path for electromagnetic noise while maintaining waterproofing.
Innovation Solution
The display apparatus incorporates a grounding member, a reinforcing member, and a magnet to couple the substrate to the cabinet, allowing electromagnetic noise to be discharged through a simple structure while ensuring small-scale waterproofing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a grounding member is added to discharge electromagnetic noise, then electromagnetic interference is reduced, but device complexity increases
Solution Approach 1:
The grounding member is integrated with the reinforcing member, combining the electromagnetic noise discharge function with the structural reinforcement function into a single component. This merging approach reduces the overall number of separate parts while maintaining both the EMI shielding capability and structural support, thereby resolving the contradiction between reducing electromagnetic interference and minimizing device complexity.
Solution Approach 2:
The grounding member serves multiple functions simultaneously: it provides a path for electromagnetic noise discharge, offers structural reinforcement to the display module, and contributes to the overall mechanical stability. This multi-functionality allows a single component to address multiple requirements, reducing the need for additional separate components and thus minimizing device complexity while effectively managing electromagnetic interference.
2Strength
If a reinforcing member is added to prevent physical deformation, then structural strength is improved, but device complexity increases
Solution Approach 1:
The grounding member is integrated with the reinforcing member, combining the electromagnetic noise discharge function with the structural reinforcement function into a single component. This merging approach reduces the overall number of separate parts while maintaining both the EMI shielding capability and structural support, thereby resolving the contradiction between reducing electromagnetic interference and minimizing device complexity.
3Reliability
If multiple components are added for noise discharge and reinforcement, then reliability is improved, but ease of manufacture deteriorates
Solution Approach 1:
The grounding member is integrated with the reinforcing member, combining the electromagnetic noise discharge function with the structural reinforcement function into a single component. This merging approach reduces the overall number of separate parts while maintaining both the EMI shielding capability and structural support, thereby resolving the contradiction between reducing electromagnetic interference and minimizing device complexity.
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 effectively stabilizes electromagnetic noise emission and prevents physical deformation of the display module, while maintaining waterproof integrity by using a grounding member and reinforcing structure.
Implementation Method 1
a magnet disposed between the reinforcing member and the cabinet, and configured to generate magnetic attraction between the reinforcing member and the cabinet to enable the substrate to couple to the cabinet
Data Source
AI summary
This display apparatus may include a cabinet, a substrate coupled to the cabinet and including light-emitting diodes (LEDs) mounted thereon, a reinforcing member disposed between the substrate and the cabinet and coupled to the substrate, a magnet disposed between the reinforcing member and the cabinet, and configured to generate magnetic attraction between the reinforcing member and the cabinet to enable the substrate to couple to the cabinet; and a grounding member disposed between the substrate and the reinforcing member, and configured to discharge electromagnetic noise generated from the substrate through the substrate, the grounding member, the reinforcing member, the magnet, and the cabinet.