In-situ Characterization of MgO Surface with Discharge Aging at Elevated Temperatures of AC-Plasma Display Panels

The effect of aging temperature on discharge characteristics of the MgO film of alternating currentplasma display panels (AC-PDPs) has been investigated from the point of view of surface contamination on the MgO protective layer. AC-PDP front panel samples were tested with Ne-Xe (4%) gas discharge after aging at elevated substrate temperatures. Real time analysis of the plasma composition near the MgO surface was performed by optical emission spectroscopy (OES) in the aging chamber. In-situ characterization of X-ray photoelectron spectroscopy (XPS) and discharge characteristics revealed that aging temperature at 100 C gave the best result for discharge condition which can be achieved by controlling the MgO surface with less content of C and H for the reduction of the sustain voltage Vs and less residue of Xe for the reduction of the firing voltage Vf.