Flexible LED Patch for Skin Care with Multi-Layer Circuit
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Solution Overview
Problem
Conventional skin care apparatuses are inconvenient to use due to the need for manual gripping, lack of comfort during application, and limited ability to provide both light and heat for skin improvement.
Innovation Solution
A light-emitting diode (LED) patch with a flexible substrate, circuit pattern, and cover part that can be easily attached to the skin, providing both light and heat for skin care, featuring a heat generation part and a connection cable for external power supply, ensuring secure adhesion and reliable operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a conventional skin care apparatus is designed with a rigid structure to provide stable light emission, then the light emission stability is improved, but the ease of operation and comfort during usage deteriorates due to the need for manual gripping and rigid contact with skin
Solution Approach 1:
The patent employs a flexible substrate as the base structure of the skin care apparatus, allowing it to conform to the contours of the user's face and body. This flexible substrate replaces rigid housing structures, enabling the device to be easily manipulated and positioned while maintaining stable light emission through proper circuit design on the flexible base.
2Ease of manufacture
If a conventional skin care apparatus uses a simple single-layer circuit structure, then the manufacturing complexity is reduced, but the reliability of electrical connection and light emission deteriorates
Solution Approach 1:
The circuit structure is divided into multiple layers with distinct functions: a first circuit layer for power distribution, a second circuit layer for signal control and additional connections, and intermediate connection structures. This segmentation allows each layer to be optimized independently for its specific function while maintaining overall system reliability through multiple redundant connection paths.
Solution Approach 2:
The patent uses composite material structures including flexible substrate materials combined with conductive traces, adhesive layers with conductive fillers, and multi-layer circuit board constructions. These composite structures provide both mechanical flexibility and reliable electrical connections, achieving reliability without excessive manufacturing complexity.
3Device complexity
If a conventional skin care apparatus provides only light therapy, then the device complexity is reduced, but the effectiveness of skin care treatment deteriorates due to limited therapeutic capabilities
Solution Approach 1:
The patent integrates multiple therapeutic functions into a single skin care apparatus: light-emitting diodes for phototherapy, heating elements for thermal therapy, and cooling components for cryotherapy. These different therapeutic modalities are combined in one device that can be applied to the skin, providing comprehensive skin care treatment without requiring multiple separate devices.
Solution Approach 2:
The flexible substrate and circuit design are configured to support multiple types of therapeutic elements (light sources, heating elements, cooling elements) that can be selectively activated. This universal design allows the same device structure to deliver different therapeutic treatments based on user needs, enhancing effectiveness while maintaining manageable device complexity.
4Manufacturing precision
If the LED patch uses a rigid substrate to maintain structural integrity, then the manufacturing precision is improved, but the adaptability to different skin contours deteriorates
Solution Approach 1:
The patent employs a flexible substrate as the base structure of the skin care apparatus, allowing it to conform to the contours of the user's face and body. This flexible substrate replaces rigid housing structures, enabling the device to be easily manipulated and positioned while maintaining stable light emission through proper circuit design on the flexible base.
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 LED patch enhances skin care convenience, comfort, and effectiveness by providing flexible attachment, stable conduction, and simultaneous light and heat therapy for improved skin penetration of active ingredients.
Implementation Method 1
a light source part including one or more LEDs mounted on one surface of the substrate part
Implementation Method 2
a method has been proposed in which light in a specific wavelength band is irradiated onto skin to promote cell activity without thermal damage to tissues
Implementation Method 3
a heat generation part configured to generate heat when power is applied
Implementation Method 4
a conductive adhesive layer including a vertical conductive filler
Data Source
AI summary
An LED patch for a skin care apparatus is provided. An LED patch for a skin care apparatus according to an exemplary example of the present invention comprises: a substrate part; a circuit pattern part formed in at least two layers on the substrate part; a light source part including one or more LEDs mounted on one surface of the substrate part; and a cover part configured to cover at least one surface of the substrate part.