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Transparent radiative cooling cover window for flexible and foldable electronic displays

Engineering and Technology

Transparent radiative cooling cover window for flexible and foldable electronic displays

K. W. Lee, J. Yi, et al.

Explore the fascinating development of transparent radiative cooling metamaterials by Kang Won Lee, Jonghun Yi, Min Ku Kim, and Dong Rip Kim. These innovative 50-micron-thick materials not only provide mechanical robustness and moisture impermeability but also enhance thermal management in electronic displays by effectively combating temperature rise in devices under solar irradiance.

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Playback language: English
Abstract
This paper reports the development of transparent radiative cooling metamaterials as cover windows for foldable and flexible electronic displays. These 50-micron-thick metamaterials, created by embedding optically modulating microstructures in clear polyimide, exhibit excellent light emission in the atmospheric window while maintaining optical transparency, mechanical robustness, and moisture impermeability. The metamaterials effectively mitigate temperature rise in heat-generating devices exposed to solar irradiance and enhance thermal management in dark conditions, significantly improving the light output performance of LEDs by suppressing thermalization-related deterioration.
Publisher
Nature Communications
Published On
May 24, 2024
Authors
Kang Won Lee, Jonghun Yi, Min Ku Kim, Dong Rip Kim
Tags
radiative cooling
metamaterials
transparent materials
thermal management
flexible electronics
polyimide

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