Soon-Rewl Lee

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.

19.1: Design of 3-D PDP with Fast-Decaying Phosphor

Designed PDP exhibits good quality picture in 3D and normal modes. We selected several phosphors of red and green cell under 4ms decay time. for red color (Y,Gd)2O3: Eu3+ phosphor was adopted due its short decay time and high luminescence. Mixture of Zn2SiO4: Mn2+, (Y,Gd)Al3B4O12: Tb3+, and Y3Al5O12: Ce3+ was used as green phosphor. Decay time, luminance, and color coordinate of 3D PDP panel and Moving picture image quality of 3D PDP TV-set are discussed.