Blue phosphor complex having near ultraviolet-excited blue phosphors and cathode ray tube employing phosphor layer formed using the same

摘要

The invention sulfide, zinc-based blue light-emitting fluorescent substance and the other the near ultraviolet attached to the surface is excited by the phosphor composite blue light-emitting fluorescent substance, and relates to a cathode ray tube including a fluorescent film formed by using the excitation fluorescent material or a composite blue light-emitting fluorescent substance outside the near-ultraviolet which such, the outer near ultraviolet here blue light-emitting fluorescent substance, when the conventional cathode-ray tubes zinc sulfide blue-emitting phosphor to emit light by using the near-ultraviolet rays generated therefrom as an excitation source and emits blue light. Thus, blue light emission can be obtained a further improved cathode ray tube such as near-ultraviolet outer here by using the composite blue light-emitting phosphor or a phosphor containing it occurs less that the electromagnetic wave generated in the outer area near ultraviolet.