Patent ID: 8044222

Claim:
An aromatic amine compound represented by the following Formula (1): wherein L 1 represents a divalent group selected from the group consisting of phenyl, 1-naphthyl, 2-naphthyl, 1-anthryl, 2-anthryl, 9-anthryl, 1-phenanthryl, 2-phenanthryl, 3-phenanthryl, 4-phenanthryl, 9-phenanthryl, 1-naphthacenyl, 2-naphthaceyl, 9-naphthacenyl, 1-pyrenyl, 2-pyrenyl, 4-pyrenyl, 2-biphenylyl, 3-biphenylyl, 4-biphenylyl, p-terphenyl-4-yl, p-terphenyl-3-yl, p-terphenyl-2-yl, m-terphenyl-4-yl, m-terphenyl-3-yl, m-terphenyl-2-yl, o-tolyl, m-tolyl, p-tolyl, p-t-butylphenyl, p-(2-phenylpropyl)phenyl, 3-methyl-2-naphthyl, 4-methyl-1-naphthyl, 4-methyl-1-anthryl, 4′-methylbiphenylyl, 4″-t-butyl-p-terphenyl-4-yl, fluoranthenyl, fluorenyl, and 9,9-demethylfluorenyl; at least one of Ar 1 to Ar 4 is represented by the following Formula (2): wherein R 1 an aryl group having 6 to 50 ring atoms, an alkyl group having 1 to 50 carbon atoms, a halogen atom or a cyano group; a is an integer of 1 to 3; and L 2 represents a divalent group selected from the group consisting of phenyl, 1-naphthyl, 2-naphthyl, 2-biphenylyl, 3-biphenylyl, 4-biphenylyl, o-tolyl, m-tolyl, p-tolyl, fluoranthenyl, fluorenyl, and 9,9-dimethylfluorenyl; in Formula (1), among Ar 1 to Ar 4 , the groups which are not represented by Formula (2) each are independently an aryl group having 6 to 50 ring atoms; provided that substituents for Ar 1 to Ar 4 each are independently an aryl group having 6 to 50 ring atoms, a halogen atom or a cyano group.