The geometry effects of the ditched dielectric in AC-PDP cell

Summary form only given. We present the cell-geometry effects with a fluid code in AC-PDP cell. The fluid code consists of the continuity equation and Poisson equation, and an equation for dielectric charging. The coplanar-electrode geometry is widely used because of the easiness of manufacturing and driving circuit. The luminance efficiency in the coplanar geometry is low because the dielectric layer deposited above the electrodes reduces the electric fields between the adjacent electrodes. Because the strong electric fields exist inside the dielectric layer, the reduced electric field does not generate effectively the plasma particles. We present the cell geometry with a ditched dielectric between the adjacent electrodes. This geometry uses the strong electric field in the ditched region. The plasma densities are increased and the discharge ignition time is decreased due to the strong electric field. The area and shape of the ditched region are discussed.