Abstract
Relations between the decay time constant of phosphor emission and gray scale disturbance are derived for color PDPs. As the persistence of the emission becomes longer, the disturbance becomes less perceptible. The long decay, however, widens the region of disturbance, in addition to manifesting the tails of moving images. The disturbance can be reduced by decreasing the light-emission duty factor, but within a limited extent. Since the amount of the disturbance depends on the phosphor decay time, false colors appear for color images if R, G, and B phosphor have different decay times.