| 摘要 |
PROBLEM TO BE SOLVED: To provide an organic EL element capable of obtaining higher brightness then the conventional one. SOLUTION: An organic EL element in which an organic layer made of an organic compound is arranged between a pair of electrodes at least one of them is transparent contains a compound represented by the formula in the organic layer. In the formula, R1, R2, and R3 are a hydrogen atom, a halogen atom, a phenyl group, a naphthyl group, a halogenated phenyl group, an alkyl group, an alkyl phenyl group, an alkoxy group, an alkoxy phenyl group, a halogenated alkyl phenyl group, an amino group, an amino phenyl group, a phenoxy phenyl group, an aryl group, an aryl phenyl group, a cyano group, a formyl group, a nitro group, 2-(alkyl thio)-2-(aryl sulfonyl)ethenyl group, 2-(alkyl thio)-2-(alkyl sulfonyl)ethenyl group, or 2-(aryl thio)-2-(aryl sulfonyl)ethenyl group.
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