Patent ID: 8592051
Filing Date: 2013-11-26
Classification: C07C,C09K,H01L,H05B

Abstract:
1. An organic electroluminescent device, comprising an aromatic amine derivative represented by the following general formula (II′) as a light emitting material: wherein: R is a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted aryl group having 5 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 carbon atoms, a cyano group or a halogen atom; k is an integer of 0 to 8; when k is 2 or more, a plurality of R groups may be the same with or different from each other; A A m is an integer of 2 to 5; n is an integer of 0 to 5; a plurality of A when n is 2 or more, a plurality of A the two groups represented by the following formula: in the general formula (II′), may be the same or different from each other, and bond to the pyrene ring at 1-position and 6-position.