GREEN EMITTING PHOSPHOR MATERIAL AND PLASMA DISPLAY PANEL USING THE SAME

摘要

A green emitting lanthanum aluminate phosphors activated with manganese and alkali halide for plasma display panels (PDP) having an empirical formula: La2-x-yB22O36: MnxAy wherein: A = Li, Na or K; B = AI or AI+Ga; and 0.01<=x<=0.1 and 0.01<= y <= 0.1 is provided. The phosphor has a band emission in green region, peaking at 515nm when excited by 147 and 173 nm radiation from Xenon gas mixture, a uniform particle size distribution (0.01 to 10 microns), which is a size distribution appropriate for thin phosphor screens required for a variety of flat panel display and lamp applications. They exhibit high brightness, good color saturation, good stability and shorter persistence under VUV excitation.