An organic light emitting device including an anode; a hole transport region on the anode; an emission layer on the hole transport region; an electron transport region on the emission layer; and a cathode on the electron transport region, wherein the hole transport region includes: a first hole transport layer including a first hole transport material represented by the following Formula 1 or a second hole transport material represented by the following Formula 2; and a second hole transport layer on the first hole transport layer, the second hole transport layer including a third hole transport material represented by the following Formula 3 or a fourth hole transport material represented by the following Formula 4:
Heterocyclic compound and organic light emitting device including the same
申请人:SAMSUNG DISPLAY CO., LTD.
公开号:US09385325B2
公开(公告)日:2016-07-05
Provided is a heterocyclic compound represented by Formula 1 below and an organic light-emitting device including the compound of Formula 1:
wherein substituents in Formula 1 above are defined as in the specification.