| 摘要 |
PROBLEM TO BE SOLVED: To provide a highly stable light-emitting element.SOLUTION: The organic light-emitting element includes an organic compound layer having a metal complex compound represented by a general formula [1] below. [1] (M is alkaline metal, and X is an oxygen atom or a sulfur atom, and Rto Rare selected from an alkyl group substituted by a hydrogen atom, a halogen atom, or a cyano group, an alkoxy group of a fluorine-substituted or of an unsubstituted, and a substituted or an unsubstituted aryl group.)SELECTED DRAWING: None |
