| abstract |
An organic light emitting compound is disclosed in which an aryl phosphine oxide group and an aryl amine group are unconjugated with each other. The compound according to the present invention is excellent in luminescence and electrical properties, and thus is useful as a host material, hole transport layer and / or electron blocking layer forming material of the light emitting layer. When using the compound according to the present invention, it is possible to provide an organic electroluminescent device with high efficiency, low voltage, high brightness and long life. |