Electro-optical Characteristics of the Degraded Functional Layer in an Alternating- Current Plasma Display Panel

The electro-optical characteristics of several functional layers over the MgO protective layer were studied during the continuous discharge of an AC-PDP. In order to observe the degradation of each functional layer on the MgO protection layer, we measured the surface morphology, cathodoluminescence (CL) spectrum, the secondary electron emission coefficient (γ) and the discharge characteristics after 500 hours of discharge during the operation of the AC-PDP.