Fluorescent display device and display apparatus using the same

摘要

A fluorescent display device comprising at least one phosphor screen composed of a mixture of a SnO2:Eu phosphor with at least one of the cathodoluminescent phosphors having emission spectra and exitation properties different from SnO2:Eu phosphor. This fluorescent display device emits light of different colors when driven at different voltages and at pulse voltages of different duty cycles. A display apparatus comprises such a fluorescent display device and a driving device with variable output voltage.