Wavelength Converting Layer for Skin Treatment
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Solution Overview
Problem
Current electronic devices for skin management and treatment, such as light-emitting masks, are in their initial stages and lack design adaptability for various individuals, particularly in terms of wavelength effectiveness for inflammation treatment and skin regeneration across different ethnic groups and skin thicknesses, and have limited light source longevity.
Innovation Solution
An electronic device with a substrate hosting multiple light-emitting devices and a wavelength converting layer that emits light in the 600 nm to 850 nm range, featuring a partitioned wavelength conversion structure and a flexible substrate for uniform light distribution, ensuring penetration into various skin types and providing long-lasting skin treatment benefits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single wavelength light source is used, then the device structure is simple, but it cannot effectively treat different skin types and ethnic groups
Solution Approach 1:
The wavelength converting layer is divided into multiple wavelength conversion areas (first, second, third wavelength conversion areas) that are spatially separated and each emits light of a different wavelength. This segmentation allows the device to provide multiple wavelengths simultaneously, adapting to different skin types and ethnic groups while maintaining a relatively simple overall structure.
Solution Approach 2:
Different regions of the wavelength converting layer are designed to emit different wavelengths (e.g., first area emits 600-680nm, second area emits 680-780nm, third area emits 780-850nm). This local differentiation of optical properties enables targeted treatment for different skin types without requiring multiple separate devices.
2Temperature
If blue light emitting devices are used, then the device structure is simple, but the light cannot penetrate deep into skin for effective treatment
Solution Approach 1:
A wavelength converting layer is introduced as an intermediary between the blue light emitting devices and the skin. This layer converts a portion of the blue light into red light (600-850nm), which has deeper skin penetration capabilities. The intermediary layer enables deep skin treatment without requiring direct infrared or red light sources, maintaining device simplicity.
3Adaptability or versatility
If multiple wavelength conversion areas are used, then different skin types can be treated, but light leakage between areas occurs
Solution Approach 1:
Partition walls are constructed between adjacent wavelength conversion areas to extract and block stray light from leaking into neighboring areas. These partition walls physically separate the different wavelength emission zones, ensuring that each wavelength targets the intended skin depth without interference from other wavelengths.
4Duration of action of stationary object
If organic light emitting devices are used, then the device has long lifespan, but the wavelength conversion efficiency may be reduced
Solution Approach 1:
The wavelength converting layer parameters (thickness, material composition, particle size distribution) are optimized to maximize conversion efficiency. The layer thickness is controlled at 1-10 micrometers, and specific phosphor materials are selected to achieve high conversion efficiency from blue to red light, compensating for any potential efficiency losses while maintaining the long lifespan advantage of OLEDs.
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 device achieves effective inflammation treatment and skin regeneration regardless of ethnic group or skin thickness, with a broad wavelength range and long-lasting light source, enhancing skin management and treatment outcomes.
Implementation Method 1
a wavelength converting layer, disposed on the substrate, wherein the plurality of the light emitting devices emit a light of same color, wherein light emitted from the light emitting devices is converted by going through the wavelength converting layer
Data Source
AI summary
An aspect of the present disclosure relates to an electronic device, and more particularly, to an electronic device that may include: a substrate; a plurality of light emitting devices, disposed on the substrate; a wavelength converting layer, disposed on the substrate, wherein the plurality of the light emitting devices emit a light of same color, wherein light emitted from the light emitting devices is converted by going through the wavelength converting layer, wherein the converted light is extracted to outside of the electronic device, and has a wavelength longer than that of the light emitted from the light emitting devices. Through this, an electronic device can be provided emitting light having a wavelength from which effects of inflammation treatments and skin regeneration can be acquired.