Disclosed is a composition comprising a compound having a saturated heterocyclic structure, in which the number of ring-constituting members containing a nitrogen atom is 5 or more, and a phosphorescent compound.
本发明公开了一种组合物,该组合物包含一种具有饱和杂环结构的化合物(其中含氮原子的成环成员数为 5 个或更多个)和一种
磷光化合物。