A microbridge structure based on air bridge technology has been used t
o make plasma display panels. This microbridge structure has a 20-mu m
physical gap between the bridge anode and the cathode. The Paschen's
minimum for pulsed de discharges is around 900 Torr for Ne + 0.1% Ar a
nd He + Xe gas mixtures, and moves to higher pressures with increasing
xenon content. The current-voltage (I-V) characteristics have been in
vestigated over the pressure range of 500-900 Torr. With the pressure
between 700 and 900 Torr the microbridge plasma display cells operate
in a normal glow discharge mode. The luminance has been measured in a
display panel consisting of a microbridge discharge structure combined
with an R, G, B photoluminescent phosphor plate. He + Xe mixture disc
harges in this microbridge plasma display have their maximum luminance
at 700-900 Torr.