Patent ID: 8623522

Claim:
An aromatic amine derivative represented by the following formula (5): wherein at least one of Ar 7 to Ar 9 is represented by the following formula (3): wherein R 4 to R 6 each are independently a hydrogen atom, a non-substituted aryl group having 5 to 50 ring carbon atoms, a substituted aryl group having 5 to 50 ring carbon atoms which said substituted aryl group is substituted by an alkyl group having 1 to 4 carbon atoms, a substituted or non-substituted alkyl group having 1 to 50 carbon atoms, a substituted or non-substituted alkoxy group having 1 to 50 carbon atoms, a substituted or non-substituted aralkyl group having 6 to 50 carbon atoms, a substituted or non-substituted aryloxy group having 5 to 50 ring carbon atoms, a substituted or non-substituted arylthio group having 5 to 50 ring carbon atoms, a substituted or non-substituted alkoxycarbonyl group having 2 to 50 carbon atoms, an amino group substituted with a substituted or non-substituted aryl group having 5 to 50 ring carbon atoms, a halogen atom, a cyano group, a nitro group, a hydroxyl group or a carboxyl group; X is a sulfur atom; f and h each are an integer of 0 to 4; g is an integer of 0 to 3; and i is an integer of 1 to 3; plural R 4 or R 5 or R 6 may be combined with each other to form a cyclic structure of a saturated or unsaturated five-membered ring or six-membered ring which may be substituted; when i is 2 or more and h is not 0, plural R 6 may be combined with each other to form a cyclic structure of a saturated or unsaturated five-membered ring or six-membered ring which may be substituted; in formula (5), among Ar 7 to Ar 9 , the groups which are not represented by formula (3) each are independently a biphenyl group, a terphenylgroup, or a 9,9-dimethylfluorenyl group.