The present specification discloses an organic electroluminescent device including: an anode; a cathode; and two or more light emitting units provided between the anode and the cathode and including a light emitting layer, in which a light emitting unit among the light emitting units, which is the most associated with the cathode, includes a first n-type organic material layer provided on the cathode side of the light emitting layer, and a first p-type organic material layer is provided between the light emitting unit among the light emitting units, which is the most associated with the cathode, and the cathode.
本说明书公开了一种有机电致发光装置,包括阳极;阴极;以及设置在阳极和阴极之间并包括发光层的两个或两个以上发光单元,其中,发光单元中与阴极关联度最高的发光单元包括设置在发光层阴极侧的第一 n 型有机材料层,发光单元中与阴极关联度最高的发光单元与阴极之间设置有第一 p 型有机材料层。