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    • 43. 发明授权
    • Organic electroluminescent device based on 2,5-diaminoterephthalic acid derivatives
    • 基于2,5-二氨基对苯二甲酸衍生物的有机电致发光器件
    • US07141312B2
    • 2006-11-28
    • US10784149
    • 2004-02-20
    • Andreas RichterJens SchöenewerkGerhard Diener
    • Andreas RichterJens SchöenewerkGerhard Diener
    • H01L51/54H05B33/14C09K11/06
    • H01L51/0059C07C229/62C07C255/58C07C2601/14C07C2603/42C07D209/08C07D213/74C07D239/42C07D295/135C07D295/192C07D317/66C07D455/04H01L51/0053H01L51/006H01L51/0081H01L51/5012H01L2251/308Y10S428/917
    • The application relates to an organic electroluminescent device which contains 2,5 diaminoterephthalic acid derivatives of formula 1a as emitter substances in one or several emitter layers in a pure or doped manner. The ring A is a triple unsaturated benzene ring wherein R4′ and R8′ are equal to zero or ring A is a double unsaturated ring respectively provided with a double bond in the 1,2 position and 4,5-position, and wherein R10 is a nitrile radical —CN or a radical C(═X1)—X2R1; R11 is a nitrile radical —CN or a radical —C(═X3)—X4R5, X1 and X3 are oxygen, sulphur or imino, X2 and X4 are oxygen, sulphur or optionally substituted amino, R1 to R8, R4′ and R8′ are H, C1–C20-alkyl, aryl, heteroaryl, R4 and R8 can also be halogen, nitro, cyanogen or amino, R2 to R4, R6–R8, R4′ and R8′ can also be trifluoromethyl or pentafluorophenyl, wherein certain radicals can form a saturated or unsaturated ring. The novel devices are characterized by narrow emission bands, low driver voltages, high photometric efficiency and high thermal stability within a broad spectral range.
    • 本申请涉及一种有机电致发光器件,其以纯或掺杂的方式在一个或多个发射极层中含有2.5个式Ia的二氨基对苯二甲酸衍生物作为发射体物质。 环A是三不饱和苯环,其中R 4'和R 8'等于零或环A是分别具有双键的双不饱和环 1,2位和4,5位,其中R 10是腈基-CN或基团C(-X 1 -OR) - X 2< 1< 1> R 11是腈基-CN或-C(-X 3 O)-X 4 R 5 O X 1,X 3和X 3是氧,硫或亚氨基,X 2和X 4是氧, 硫或任选取代的氨基,R 1至R 8,R 4'和R 8'是H, C 1 -C 20烷基,芳基,杂芳基,R 4和R 8也可以是卤素,硝基,氰基或氨基,R 2至 R 4,R 6,R 8,R 4,R 8和R 8, >也可以是三氟甲基或五氟苯基,其中某些基团可以形成饱和或不饱和的环。 新颖的器件的特征在于窄的发射带,低的驱动电压,高的光度效率和宽的光谱范围内的高的热稳定性。