Transmissive RGB Colors with High Purity and High Brightness by Quad-Layered Thin Films

Incheol Jung; Tae Young Kim; Hyeonwoo Kim; Hojae Kwak; Kwangjun Kim; Minwook Kim; Chang Kwon Hwangbo; Hui Joon Park; Jong G. Ok; Kyu-Tae Lee

doi:10.1117/12.2593632

1 August 2021 Transmissive RGB Colors with High Purity and High Brightness by Quad-Layered Thin Films

Incheol Jung, Tae Young Kim, Hyeonwoo Kim, Hojae Kwak, Kwangjun Kim, Minwook Kim, Chang Kwon Hwangbo, Hui Joon Park, Jong G. Ok, Kyu-Tae Lee

Author Affiliations +

Proceedings Volume 11802, Nanoengineering: Fabrication, Properties, Optics, Thin Films, and Devices XVIII; 1180207 (2021) https://doi.org/10.1117/12.2593632
Event: SPIE Nanoscience + Engineering, 2021, San Diego, California, United States

Abstract

We propose quad-layered transmissive structural color filters that can generate RGB primary colors with high purity and high brightness by utilizing interferences in dual Fabry-Perot (FP) cavities. Since there is a trade-off between color purity and brightness in a conventional single FP cavity, a peak separation in multiple FP cavities is exploited to achieve a more square-shaped spectral curve. Besides, controlling a resonance order in each cavity leads to a great suppression of a higher-order resonance for a red color filter. The presented results may be applied to various applications including display panels, decorations, and image sensors.

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Incheol Jung, Tae Young Kim, Hyeonwoo Kim, Hojae Kwak, Kwangjun Kim, Minwook Kim, Chang Kwon Hwangbo, Hui Joon Park, Jong G. Ok, and Kyu-Tae Lee "Transmissive RGB Colors with High Purity and High Brightness by Quad-Layered Thin Films", Proc. SPIE 11802, Nanoengineering: Fabrication, Properties, Optics, Thin Films, and Devices XVIII, 1180207 (1 August 2021); https://doi.org/10.1117/12.2593632

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