Patent ID: 7524568
Filing Date: 2009-04-28
Classification: C07C,C07D,C09B,C09K,H01L,H05B,Y10S

Abstract:
1. An organic electroluminescence device comprising at least one organic thin film layer comprising a light emitting layer sandwiched between a pair of electrodes consisting of an anode and a cathode, wherein the at least one organic thin film layer comprises at least one aromatic amine derivative represented by the following formula 1: wherein A 1 to A 4 each independently represents a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted aryl group having 5 to 50 ring carbon atoms, a substituted or unsubstituted aralkyl group having 6 to 50 ring carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted alkoxyl group having 1 to 50 carbon atoms, a substituted or unsubstituted aryloxy group having 5 to 50 ring carbon atoms, a substituted or unsubstituted arylamino group having 5 to 50 ring carbon atoms, a substituted or unsubstituted alkylamino group having 1 to 20 carbon atoms, a substituted or unsubstituted heterocyclic group having 3 to 50 ring carbon atoms, a substituted or unsubstituted silyl group having 3 to 50 carbon atoms or a halogen atom; a, b, c and d each independently represents an integer of 0 to 5, when a, b, c or d each is 2 or greater, A R with the proviso that all of R