A fluorescent composition composed of a mixture of a sulfide phosphor and a conductive material, the sulfide phosphor consisting essentially of a sulfide of the formula (Zn.sub.1-x, Cd.sub.x)S wherein x is a number satisfying a condition of 0.ltoreq.x.ltoreq.1, as host material, and zinc oxide (ZnO)...http://www.google.fr/patents/US5032316?utm_source=gb-gplus-shareBrevet US5032316 - Fluorescent composition
