Abstract
An FED with a P22 phosphor screen, driven at 7kV and 5.3" in diameter, was reported and demonstrated. In this FED, P22 phosphors have shown much higher brightness than oxide phosphors and maintained a reasonable life of 12, 000hrs, though it showed considerable brightness saturation. A new red PDP phosphor, BaGdB_9O_<16>:Eu^<3+> with better chromaticity than the conventional(Y, Gd)BO_3:Eu^<3+> was reported. A survey of host materials, which can provide the luminescence quantum efficiency higher than 1 by the quantum splitting processes, was performed based on a criteria of 5d energy. Luminescence with 125% efficiency was observed. Essential problems of this process have been also recognized.
