| 摘要 |
PROBLEM TO BE SOLVED: To provide an organic electroluminescent element which enables the increase in light emission efficiency and life.SOLUTION: An organic electroluminescent element comprises: a first hole-transport layer including a first hole-transport material; a luminescent layer; and a second hole-transport layer provided between the first hole-transport layer and the luminescent layer, and including a material expressed by the chemical formula 2.SELECTED DRAWING: None |
