WHITE FLUOROPHOR, FIELD EMISSION DISPLAY, FIELD EMISSION LAMP AND INORGANIC ELECTROLUMINESCENT DISPLAY

摘要

PROBLEM TO BE SOLVED: To provide a white fluorophor which generates white light having good color purity even at a relatively low electron accelerating voltage and low in environmental effect. SOLUTION: This white fluorophor includes (Ma)(Mb)2S4as a crystal base material and Pr3+(praseodymium ion) as an emission center, wherein Ma is Sr (strontium) or an element in which a part or the whole of Sr (strontium) is substituted with Ca (calcium) and Mb is Ga (gallium) or an element in which a part or the whole of Ga (gallium) is substituted with Al (aluminum). COPYRIGHT: (C)2010,JPO&INPIT