An organic electroluminescence device of an embodiment includes a first electrode, a second electrode, and an emission layer disposed between the first electrode and the second electrode, wherein the polycyclic compound includes a boranamine derivative, a first ring and a second ring, each directly linked to a boron atom of the boranamine derivative, a third ring and a fourth ring, each directly linked to a nitrogen atom of the boranamine derivative, and at least one substituted or unsubstituted boryl group, linked to at least one ring among the first to fourth rings, thereby showing long-life characteristics and excellent color reproducibility.