Luminous efficiency of a Digivue®display/memory panel

The results of recent luminous efficiency measurements on Digivue® display/memory panels are presented. It is found that luminous efficiency increases with decreasing minority gas concentration and increases with increasing dielectric thickness. Spectroscopic measurements are reported on the emission spectra from various Xe-based gas mixtures. Luminous efficiencies reported here take into account all the light emitted into 4π sterads. A maximum luminous efficiency of 1.8 lm/W was obtained using a panel containing P-1 phosphor and a xenon-argon mixture.