A plasma display device includes a blue phosphor composed of a compound represented by Me
3
MgSi
2
O
8
:Eu (where, Me is at least calcium (Ca), strontium (Sr), or barium (Ba)). Concentration of bivalent Eu ions is 45 to 95% and concentration of trivalent Eu ions is 5 to 55%, of the europium (Eu) atoms contained in the blue phosphor layer. The plasma display device has less luminance degradation in a panel manufacturing process, high luminance, and long lifetime.
一种等离子体显示器件包括由Me3MgSi2O8:Eu化合物组成的蓝色荧光体(其中,Me至少为
钙(Ca)、
锶(Sr)或
钡(Ba))。二价Eu离子的浓度为45%至95%,三价Eu离子的浓度为5%至55%,其中包含在蓝色荧光体层中的Eu原子。该等离子体显示器件在面板制造过程中具有较少的亮度退化,高亮度和长寿命。