| 摘要 |
PROBLEM TO BE SOLVED: To provide an organic electroluminescent element having excellent luminous efficiency, blue color purity and small drive degradation.SOLUTION: The electroluminescent element contains a compound represented by a following formula in at least one organic layer. (R-Rrepresent independently a hydrogen atom or a substituent group, respectively, at least one of the R-Rand R-Rrepresents -L-NRR(R, Rrepresent independently any one of alkyl radical, aryl group, or heteroaryl group, respectively. Rand Rmay form a ring in cooperation. L represents a single bond or a bivalent coupling group). X-Xrepresent independently a carbon atom or a nitrogen atom, respectively, and when X-Xrepresent a nitrogen atom, R-Rbeing bonded thereto does not exist). |
