A light emitting device of an embodiment includes oppositely disposed first electrode and second electrode, and multiple organic layers disposed between the first electrode and the second electrode, wherein at least one among the organic layers includes a fused polycyclic compound represented by Formula 1 below, thereby showing improved emission efficiency. In Formula 1, the substituents are the same as defined in the Detailed Description.
                            一个实施例的发光装置包括相对设置的第一电极和第二电极,以及多个有机层位于第一电极和第二电极之间,其中至少一个有机层包含由下式表示的融合
多环化合物,从而显示出改善的发射效率。在式子1中,取代基的定义与详细说明中的相同。