Elastic Conductive Frame for Reliable Electrical Connection
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Solution Overview
Problem
Existing electro-optical devices, such as LCDs, face challenges in reliable electrical connection between components due to component tolerance variations, leading to increased costs and difficulties in recycling, as well as potential malfunctions from electrical noise.
Innovation Solution
An electro-optical device design featuring a first and second metal frame with an elastic conductive part that presses against each other to ensure reliable electrical connection, allowing for tolerance variations without precise setting, and incorporating a receiving part to facilitate easy assembly and reduced size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If component tolerance is set to avoid rattling between contacted surfaces, then reliable electrical connection is achieved, but manufacturing cost increases
Solution Approach 1:
The patent changes the physical state of the conductive layer from rigid to flexible by using an elastic substrate. This allows the conductive layer to deform and adapt to tolerance variations in component dimensions, maintaining reliable electrical contact without requiring tight tolerance control during manufacturing
Solution Approach 2:
The patent introduces an elastic substrate as an intermediary between the conductive layer and the component surface. This intermediary absorbs dimensional variations and ensures continuous contact, resolving the contradiction between connection reliability and manufacturing cost
2Reliability
If conductive tape is used to electrically connect two cases, then electrical connection is achieved, but number of components increases causing cost increase
Solution Approach 1:
The patent merges the conductive layer with the case structure by forming the conductive layer directly on the case surface. This integration eliminates the need for separate conductive tape components, reducing part count while maintaining electrical connection functionality
Solution Approach 2:
The case structure is given multiple functions: it serves as both the structural housing and the electrical connection element. The conductive layer on the case surface provides electrical connectivity without requiring additional dedicated connection components
3Reliability
If screw is used to electrically connect two cases, then electrical connection is achieved, but number of manufacturing processes increases causing cost increase
Solution Approach 1:
The patent extracts the electrical connection function from the mechanical fastening process. By providing a conductive layer on the case surface, electrical connection is achieved through the assembly process itself without requiring separate screw-fastening operations for electrical connectivity
4Strength
If soldering is used to connect components, then strong electrical connection is achieved, but recycling becomes difficult causing resource waste
Solution Approach 1:
The patent uses a flexible conductive layer that can be easily removed and replaced rather than permanently soldered. This approach prioritizes ease of recycling and replacement over maximum connection strength, allowing components to be reused and resources to be conserved
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 a cost-effective and reliable electrical connection between components, preventing malfunctions and reducing manufacturing costs while maintaining high display quality.
Implementation Method 1
any one of the first and second metal frames is extended toward the other one and has an elastic conductive part, and the conductive part is pressed against the other one by the elastic force and comes into contact with the other one
Data Source
AI summary
An electro-optical device is provided which includes a first electro-optical panel, an electronic part that is provided to be adjacent to the first electro-optical panel, a receiving part that is interposed between the first electro-optical panel and the electronic part and receives the first electro-optical panel and the electronic part, a first metal frame that fixes the first electro-optical panel to the receiving part, and a second metal frame that fixes the electronic part together with the first metal frame therebetween. In the electro-optic device, any one of the first and second metal frames is extended toward the other one and has an elastic conductive part, and the conductive part is pressed against the other one by the elastic force and comes into contact with the other one such that the first and second metal frames are electrically connected to each other.