In a coplanar plasma display panel the discharges in each pixel are sustain
ed between two parallel electrodes on the same substrate. A third electrode
perpendicular to the sustaining electrodes and placed on a facing substrat
e is used to address the pixel. A self-consistent two-dimensional model of
the microdischarge has been used to simulate and study the addressing and s
ustaining phases in an alternating current coplanar cell. The formation and
decay of the transient plasma during the address and sustain discharge pul
ses are described. The time evolution of the charges on the dielectric surf
aces above each electrode is also discussed and the model is used to derive
the voltage margins of the address and sustain regimes. (C) 1999 American
Institute of Physics. [S0021-8979(99)02113-1].