| 摘要 |
In the present invention, provided is an organic electroluminescent device representing high efficiency by improving properties of driving voltage, light emitting efficiency, and durability. The organic electroluminescent device comprises: a positive electrode; a negative electrode; and an organic material layer with one or more layers, interposed between the positive electrode and the negative electrode. At least one of the organic material layers with one or more layers includes: a first host; a second host; and a dopant. |
