Aging Characteristics of the Green Phosphors for PDP Application

  • Han, Bo-Yong (School of Chemical Engineering and Materials Science, Chung-Ang University) ;
  • Yoo, Jae-Soo (School of Chemical Engineering and Materials Science, Chung-Ang University)
  • Published : 2005.07.19

Abstract

The picture quality of a plasma display panel is very sensitive to the phosphor characteristics such as decay time, surface state, and even longevity of phosphor material in itself. In this work, material characteristics of $Zn_2SiO_4:Mn$, $Y_2O_3-coated$ $Zn_2SiO_4:Mn$, and $YBO_3:Tb$, which are dominant in commercial application, were examined for investigating the aging characteristics of green PDP phosphors. It was found that $Y_2O_3-coated$ $Zn_2SiO_4:Mn$ are easily degraded at high temperature. However, all the samples were very weak after vacuum annealing. The luminescence intensity was decreased by order of one magnitude.

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