申请人:Sumitomo Chemical Company, Limited
公开号:EP2562838A1
公开(公告)日:2013-02-27
An object of the invention is to provide an organic light emitting device having a high current density at the time of driving. A means for achieving the object is an organic light emitting device which has an anode and a cathode, has between the anode and the cathode a light emitting layer containing a light emitting organic compound, and has between the anode and the light emitting layer a first functional layer containing a first organic compound, a second functional layer containing a second organic compound and a hole transport layer in this order from the anode side, wherein the first organic compound is an electron accepting organic compound, and the second organic compound is an organic compound having a fused ring or not less than three aromatic rings.
本发明的目的是提供一种在驱动时具有高电流密度的有机发光器件。实现该目的的一种方法是一种有机发光器件,该器件具有一个阳极和一个阴极,在阳极和阴极之间具有一个包含发光有机化合物的发光层,在阳极和发光层之间具有一个包含第一有机化合物的第一功能层、一个包含第二有机化合物的第二功能层以及一个从阳极侧依次排列的空穴传输层,其中第一有机化合物是一种接受电子的有机化合物,第二有机化合物是一种具有一个融合环或不少于三个芳香环的有机化合物。