Optical characteristics of phosphor screen in field emission environments

Abstract

The required luminance for information display is near 300cd/cm2 for white. The amount of emitted light in phosphor screen depends upon the anode voltage and electron density from field emitter arrays. Field emission display to date does not use the high accelerating voltage but a great number of cold electrons from field emitter arrays for required brightness. In these situations, coulombic loading on the phosphors should be minimized for the long lifetime. It was found thq the introduction of a wide band-gap inaterial to the oxide phosphors was effective for the prevhtion of accumulation of the electrons on the surface of phosphors.