Coumarin derivatives and an electroluminescent (EL) device using the coumarin derivatives
申请人:Labeltek Inc.
公开号:US06727362B1
公开(公告)日:2004-04-27
Coumarin derivatives are used with an electroluminescent (EL) device in accordance with the present invention. The coumarin derivatives have the representative formula (1):
wherein the R1 is a branched alkyl group of 3 to 10 carbon atoms.
香豆素衍生物在本发明中与电致发光(EL)器件一起使用。香豆素衍生物具有代表性公式(1):其中R1是具有3到10个碳原子的支链烷基。