| abstract |
The organic electroluminescent device includes an anode, a hole transporting region, a light emitting layer, a first buffer layer, an electron transporting region, and a cathode. The hole transporting region is provided on the anode. The light emitting layer is provided on the hole transporting region. The buffer layer is provided on the light emitting layer. The electron transport region is provided on the buffer layer. The cathode is provided on the electron transporting region. The buffer layer includes a buffer compound represented by the following formula (1). [Chemical Formula 1] |