Explanation for luminance saturation of PDP phosphor

Luminance saturation is primary determined by whether the decay time is on the order of microseconds (μs) or milliseconds (ms), that is, whether or not electric dipole moment transitions are allowable. For prohibited or magnetic transitions, for which electric dipole moment transitions are not allowable (phosphors with ms-order decay times), there is no linear relationship between decay time and luminance saturation. In order to explain the luminance saturation of phosphor with ms-order decay time in plasma display panel we proposed non-radiative transitions as a cause of luminance saturation and derived simulation formulas based on them. The results from the simulation were in good agreement with those from the experiments.