Quantum Dot Color Conversion Stack With UV-Absorbing Filter Protection
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Solution Overview
Problem
Existing electronic devices face challenges in improving quality and durability, particularly in managing UV light emission that can damage components like color filters, and there is a need for enhanced designs incorporating quantum dot-color conversion layers.
Innovation Solution
The electronic apparatus includes a substrate with a light source, a color conversion layer, a UV-absorbing layer, and a color filter, where the UV-absorbing layer selectively absorbs UV light emitted from the light source and the color conversion layer, and the color filter is protected by this layer to prevent damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a quantum dot-color conversion layer is used to improve color quality, then color reproduction is enhanced, but UV light from the light source damages the color filter and reduces device durability
Solution Approach 1:
A UV-absorbing layer is introduced as an intermediary component between the quantum dot-color conversion layer and the color filter. This layer selectively absorbs UV light while allowing visible light to pass through, thereby protecting the color filter from UV damage while maintaining the color conversion functionality of the quantum dot layer.
Solution Approach 2:
The optical filtering function is segmented into two separate layers: the quantum dot-color conversion layer handles color conversion, while the UV-absorbing layer handles UV protection. This segmentation allows each layer to perform its specific function optimally without interfering with the other.
2Reliability
If UV-absorbing layer is added to protect color filter, then durability is improved, but device structure becomes more complex
Solution Approach 1:
The UV-absorbing layer is designed to serve multiple functions: it absorbs UV light to protect the color filter, maintains optical transparency for visible light transmission, and can be integrated with the existing quantum dot layer structure. This multi-functionality reduces the need for additional separate protective components.
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
This configuration enhances the durability and quality of electronic devices by preventing UV-induced damage to the color filter, ensuring high-quality light emission and improved color reproduction.
Implementation Method 1
the UV-absorbing layer is to absorb a portion of light emitted from the light source and the color conversion layer
Implementation Method 2
Quantum dots are excited by incident light to emit light having a longer wavelength than that of the incident light
Data Source
AI summary
An electronic apparatus and a method of manufacturing the same are provided. The electronic apparatus includes: a substrate; a light source on the substrate; a color conversion layer on the light source; a UV-absorbing layer on the color conversion layer; and a color filter on the UV-absorbing layer.