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RED PHOSPHOR AND PLASMA DISPLAY PANEL COMPRISING THE SAME

2025-06-18 10:182400下载
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PURPOSE : Red phosphors is provided to prevent the deterioration of the phosphors due to VUV radiation or ion impact, and to improve luminous brightness, thereby improving the life time characteristics of the phosphors and decreasing discharging voltage. CONSTITUTION : Red phosphors comprise yttrium(Y), gadolinium (Gd), an alkaline-earth metal element, and europium(Eu). The red phosphor is in chemical formula 1 : Y_(2-x-y-z)Gd_xM_yO_3 : Eu_z. In chemical formula 1, M is an alkaline-earth metal element, 0
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