EXAX INC; JANG Hyun Myung; KIM Seon Bae; KUM Byung Gon; HEO Soon Yeong; SEO Dong sung
简介
The present invention relating to phosphors based on Rare Earth doped CaSO4, provides CaSO4 phosphor of vacuum ultraviolet excitation type represented by the following formula, Ca 1-a-b XaRE b SO 4………….. (α) wherein 0.0001