White fluorescent liquid crystal (LC) cells have been demonstrated by mixing two or three dichroic dyes of complimentary or trichromatic fluorescent colors, respectively. The bright white fluorescence was obtained by energy transfers between fluorescent dyes and the fluorescent intensity was controlled by applying the voltage across the LC cell. The brightness was improved by increasing the optical path of the excitation UV light in the cholesteric scattering LC cell. The back scattered light of an ambient white light was also added to the emitting light and the visibility at outdoor or in a bright room could also be increased.