Color gamut of a nematic liquid crystal display under ambient illumination

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Abstract
The theoretical color gamut of a nematic liquid crystal display under ambient illumination is described. The color gamut in the transmission-type of both the tunable-birefringence and guest–host modes is shown by the CIE chromaticity diagram and color solid. Calculation of the color matching between the given chromaticity coordinates and those calculated at the variable lightness of the ambient illumination was executed by the matrix representation method. Calculated data for ambient illumination having the same chromaticity as the reference illumination are in good agreement with the colorimetric data within a tolerable color difference in the 1964 CIE (U*,V*,W*) color scale.