Liquid crystal-powered Mie resonators for electrically tunable photorealistic color gradients and dark blacks

Trevon Badloe; Joohoon Kim; Inki Kim; Won-Sik Kim; Wook Sung Kim; Young-Ki Kim; Junsuk Rho

doi:10.1038/s41377-022-00806-8

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Liquid crystal-powered Mie resonators for electrically tunable photorealistic color gradients and dark blacks

Articles

- Liquid crystal-powered Mie resonators for electrically tunable photorealistic color gradients and dark blacks
- Light: Science & Applications Vol. 11, Issue 6, Pages: 1098-1108(2022)
- Affiliations：
  
  1.Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
  2.Department of Biophysics, Institute of Quantum Biophysics, Sungkyunkwan University, Suwon 16419, Republic of Korea
  3.Department of Intelligent Precision Healthcare Convergence, Sungkyunkwan University, Suwon 16419, Republic of Korea
  4.Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
  5.Department of Electrical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
  6.POSCO-POSTECH-RIST Convergence Research Center for Flat Optics and Metaphotonics, Pohang 37673, Republic of Korea
  7.National Institute of Nanomaterials Technology (NINT), Pohang 37673, Republic of Korea
- Author bio：
  
  Young-Ki Kim (ykkim@postech.ac.kr)
  Junsuk Rho (jsrho@postech.ac.kr)
- Funds：
- DOI：10.1038/s41377-022-00806-8
  CLC：
- Published：30 June 2022，
  
  Published Online：29 April 2022，
  
  Received：12 October 2021，
  
  Revised：11 April 2022，
  
  Accepted：18 April 2022
- Accepted：
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Badloe, T. et al. Liquid crystal-powered Mie resonators for electrically tunable photorealistic color gradients and dark blacks. Light: Science & Applications, 11, 1098-1108 (2022).
DOI：

Badloe, T. et al. Liquid crystal-powered Mie resonators for electrically tunable photorealistic color gradients and dark blacks. Light: Science & Applications, 11, 1098-1108 (2022). DOI： 10.1038/s41377-022-00806-8.

摘要

Abstract

Taking inspiration from beautiful colors in nature

structural colors produced from nanostructured metasurfaces have shown great promise as a platform for bright

highly saturated

and high-resolution colors. Both plasmonic and dielectric materials have been employed to produce static colors that fulfil the required criteria for high-performance color printing

however

for practical applications in dynamic situations

a form of tunability is desirable. Combinations of the additive color palette of red

green

and blue enable the expression of further colors beyond the three primary colors

while the simultaneous intensity modulation allows access to the full color gamut. Here

we demonstrate an electrically tunable metasurface that can represent saturated red

green

and blue pixels that can be dynamically and continuously controlled between on and off states using liquid crystals. We use this to experimentally realize ultrahigh-resolution color printing

active multicolor cryptographic applications

and tunable pixels toward high-performance full-color reflective displays.

关键词

Keywords

references

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