Wearable EL Shielding Structure for Flexible EMI Containment
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Solution Overview
Problem
Wearable EL products face challenges in completely shielding electromagnetic waves emitted from their components, leading to potential disconnection of electric wires and reduced wearability due to exposure to moisture and outdoor shocks, with existing technologies not effectively addressing these issues.
Innovation Solution
A flexible and washable electromagnetic wave shielding structure for wearable EL products, comprising a light emitting unit with a fluorescent electroluminescence element, hot melt-coated shields, and transparent electrode materials, along with a flexible electric wire and inverter configuration that shields electromagnetic waves and prevents disconnection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If electromagnetic wave shielding is implemented using conventional transparent conductive materials (ITO), then screen shaking phenomenon is prevented, but electromagnetic fields generated from wearable EL product components cannot be completely shielded
Solution Approach 1:
The shielding structure is divided into multiple segments: front shield, rear shield, and side shields that can be separately positioned and connected. Each shield portion can be independently adjusted to achieve complete electromagnetic field coverage while maintaining wire connection integrity through strategic placement of connection portions.
Solution Approach 2:
The shielding structure extends from two-dimensional planar shields to three-dimensional spatial arrangement by adding side shields and positioning shields at different depths (front, rear, and lateral positions). This multi-dimensional configuration ensures complete electromagnetic field enclosure while preserving wire functionality.
2Object-affected harmful factors
If rigid shielding structures are used to block electromagnetic waves, then shielding effectiveness is improved, but wearability and flexibility are reduced
Solution Approach 1:
The shielding structure utilizes flexible conductive materials and thin film configurations that can bend and conform to body contours. The shields are positioned and connected using flexible connection portions that maintain electromagnetic shielding effectiveness while allowing the wearable product to flex and move with the body.
Solution Approach 2:
The shielding structure is designed to be dynamic rather than rigid, with flexible components that can adapt to different wearing positions and body movements. The connection portions between shields allow for relative movement while maintaining electrical connectivity and shielding integrity.
3Stability of the object's composition
If conventional electromagnetic wave shields are applied, then screen shaking is prevented, but electromagnetic fields from EL product components leak and cause wire disconnection
Solution Approach 1:
The shielding structure employs a nested configuration where front shield, rear shield, and side shields are positioned concentrically around the EL product components. This nested arrangement creates multiple layers of electromagnetic field containment, preventing field leakage that could cause wire disconnection while maintaining display stability.
Solution Approach 2:
The shielding structure serves multiple functions simultaneously: it shields electromagnetic waves, contains electromagnetic fields, protects wire connections, and maintains display stability. The integrated design of front, rear, and side shields with connection portions achieves comprehensive protection against multiple harmful effects.
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 complete shielding of electromagnetic waves from wearable EL products, enhancing wearability and safety by preventing wire disconnection and irritation, while maintaining comfort and durability through flexible and washable design.
Implementation Method 1
a rear shield attached to the rear surface of the EL member by the hot melt to shield electromagnetic waves emitted from the EL member, and a front shield attached to the front surface of the EL member by the hot melt to shield electromagnetic waves emitted from the EL member
Implementation Method 2
hot melts respectively applied to the front and rear surfaces of the EL member, a rear shield attached to the rear surface of the EL member by the hot melt
Data Source
AI summary
A wearable EL product electromagnetic wave shield structure includes a light emitting unit, an electric wire member extending from the light emitting unit, and an inverter for controlling power on/off and operation of the light emitting unit, and is washable and flexible to be applicable to all items that can be worn by humans. The light emitting unit includes an EL member applied with a fluorescent material according to a certain shape or pattern, an insulator respectively disposed on the EL member front and rear surfaces, a front electrode member disposed on the opposite side of the front side insulator from the EL member to shield electromagnetic waves emitted from the EL member, a rear electrode member disposed on the opposite side of the rear side insulator from the EL member to shield electromagnetic waves emitted from the EL member, and a base member for supporting the front electrode member.