Dual Fabry-Perot Interferometer to Improve the Color Purity of Displays

Keun Soo Shin; Jun Yong Kim; Yun Seon Do

doi:10.3807/COPP.2023.7.2.191

Dual Fabry-Perot Interferometer to Improve the Color Purity of Displays

Keun Soo Shin, Jun Yong Kim, Yun Seon Do

School of Electronics Engineering

Kyungpook National University

Research output: Contribution to journal › Article › peer-review

Abstract

We propose a dual Fabry-Perot interferometer (DFPI) structure that combines two Fabry-Perot interferometers. The structure is designed to have spectral peaks in the red, green, and blue regions si-multaneously, to be applicable to R, G, and B subpixels without any patterning process. The optimized structure has been fabricated on a glass substrate using a thermal evaporation technique. When the DFPI structure was attached to the quantum-dot color-conversion layer, the full width at half maximum values of the green and red spectra decreased by 47.29% and 51.07% respectively. According to CIE 1931 color space, the DFPI showed a 37.66% wider color gamut than the standard RGB color coordinate. Thus it was experimentally proven that the proposed DFPI structure improved color purity. This DFPI structure will be useful in realizing a display with high color purity.

Original language	English
Pages (from-to)	191-199
Number of pages	9
Journal	Current Optics and Photonics
Volume	7
Issue number	2
DOIs	https://doi.org/10.3807/COPP.2023.7.2.191
State	Published - 2023

Keywords

Color gamut
Color purity
Fabry-Perot
Full width half maximum
Quantum dot

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10.3807/COPP.2023.7.2.191

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title = "Dual Fabry-Perot Interferometer to Improve the Color Purity of Displays",

abstract = "We propose a dual Fabry-Perot interferometer (DFPI) structure that combines two Fabry-Perot interferometers. The structure is designed to have spectral peaks in the red, green, and blue regions si-multaneously, to be applicable to R, G, and B subpixels without any patterning process. The optimized structure has been fabricated on a glass substrate using a thermal evaporation technique. When the DFPI structure was attached to the quantum-dot color-conversion layer, the full width at half maximum values of the green and red spectra decreased by 47.29% and 51.07% respectively. According to CIE 1931 color space, the DFPI showed a 37.66% wider color gamut than the standard RGB color coordinate. Thus it was experimentally proven that the proposed DFPI structure improved color purity. This DFPI structure will be useful in realizing a display with high color purity.",

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AB - We propose a dual Fabry-Perot interferometer (DFPI) structure that combines two Fabry-Perot interferometers. The structure is designed to have spectral peaks in the red, green, and blue regions si-multaneously, to be applicable to R, G, and B subpixels without any patterning process. The optimized structure has been fabricated on a glass substrate using a thermal evaporation technique. When the DFPI structure was attached to the quantum-dot color-conversion layer, the full width at half maximum values of the green and red spectra decreased by 47.29% and 51.07% respectively. According to CIE 1931 color space, the DFPI showed a 37.66% wider color gamut than the standard RGB color coordinate. Thus it was experimentally proven that the proposed DFPI structure improved color purity. This DFPI structure will be useful in realizing a display with high color purity.

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Dual Fabry-Perot Interferometer to Improve the Color Purity of Displays

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Keywords

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