申请人:IDEMITSU KOSAN COMPANY LIMITED
公开号:EP0502202A1
公开(公告)日:1992-09-09
An organic electroluminescent element comprising a dimeric stryryl compound represented by general formula (I) as the luminescent material, wherein D, D', E, E', F, F', G, G' and Q are each as defined in the specification. The dimeric styryl compound used is one prepared by bonding two molecules of a compound having a good luminescence efficiency and a desirable luminescence wavelength to each other via a divalent group which breaks a conjugated system without impairing the abilities of the compound to thereby increase the molecular weight (to dimerize) and improve the properties as thin film. Therefore this element is widely applicable as various display materials.
一种有机电致发光元件,由通式(I)代表的二聚苯乙烯基化合物作为发光材料,其中 D、D'、E、E'、F、F'、G、G'和 Q 均如说明书中所定义。所使用的二聚苯乙烯基化合物是一种通过二价基团将两个具有良好发光效率和理想发光波长的化合物分子相互键合而制备的化合物,该二价基团可在不损害化合物能力的情况下打破共轭体系,从而增加分子量(使其二聚化)并改善薄膜特性。因此,这种元素可广泛应用于各种显示材料。