An organic electroluminescence device includes an anode, a cathode, a first organic layer and an emitting layer including a luminescent material, in which the first organic layer and the emitting layer are interposed between the anode and the cathode in this sequence from the anode. The emitting layer contains a first material represented by the following formula (1-1) and a second material. The first organic layer contains a compound represented by the following formula (4).
A PLURALITY OF HOST MATERIALS AND AN ORGANIC ELECTROLUMINESCENCE DEVICE COMPRISING THE SAME
申请人:Rohm and Haas Electronic Materials Korea Ltd.
公开号:US20170342057A1
公开(公告)日:2017-11-30
The present invention relates to a plurality of host materials and an organic electroluminescent device comprising the same. By comprising a specific combination of a plurality of host compounds, the organic electroluminescent device according to the present invention provides high efficiency and long lifespan.