AROMATIC AMINE DERIVATIVE AND ORGANIC ELECTROLUMINESCENT ELEMENT USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide an aromatic amine derivative used for an organic EL element capable of obtaining blue light emission and an organic thin film used for an organic thin film layer.SOLUTION: There is provided an aromatic amine derivative represented by the following formula (1). (In the formula (1), Rto Rand Rto Rrepresent a hydrogen atom or a substituent; Rand Rare represented by the formula (2); Lto Lrepresent a single bond, an aryl group or the like; Aris represented by the formula (3); X represents an oxygen atom or the like; and Arrepresents a substituted or unsubstituted aryl group or the like.)