Microbridge plasma display panel with high gas pressure

Abstract

A microbridge structure based on air bridge technology has been used to 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 and He + Xe gas mixtures, and moves to higher pressures with increasing xenon content. The current-voltage (I-V) characteristics have been investigated 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 discharges in this microbridge plasma display have their maximum luminance at 700-900 Torr.