申请人:IDEMITSU KOSAN CO., LTD.
公开号:US20150228899A1
公开(公告)日:2015-08-13
An organic electroluminescent device containing, between an anode and a cathode facing each other, a first hole transporting layer, an adjacent layer adjacent to an emitting layer, and an emitting layer, in this order from the side of the anode, wherein the first hole transporting layer contains a compound represented by the following formula (1), is provided as an organic EL device that is capable of being driven at a low voltage and has a prolonged life time and high efficiency. (In the formula, R
1
to R
4
, L
1
, Ar
1
, Ar
2
, m, n, p and q are as defined in the specification.)