The present paper reviews the recent advent of cathodoluminescent materials which include the monochromatic orange

amber and; color high-resolution phosphors for terminal display tubes for special purposes

phosphors for color TV

projection TV and gigantic outdoor video display and" multicolor and multi-persistence penetration phosphors for multifunction CRT. The important properties of energy efficiency

color and CIE coordinate

beam current saturation effect

temperature dependence

presistence and degration are stressed. "It is interesting to develop the phosphor having saturated emission color and meduim-long antiflicker presistence.