电致发光(electroluminesence,以下简称EL)是发光物质在外加电场激发下的发光现象.固体电致发光的工作原理是发光物质的载流子受强电场的加速倍增后,碰撞离化或激发发光中心,然后复合而发光.1936年,Destrian发现这种现象.五十年代发明了导电玻璃后,作出了大面积发光板,从而引起 Electroluminescence (electroluminesence, hereinafter referred to as EL) under the excitement of the luminescent material under the excitement of the luminescence phenomenon. The working principle of solid electroluminescence is the carrier of the luminescent material by the accelerated electric field doubled, collision ionization or excitation luminescence Center, then composite and glowed. Destrian discovered this phenomenon in 1936. After the invention of conductive glass in the 1950s, large-area luminescent panels were made, causing