| abstract |
An electroluminescent device is disclosed. The electroluminescent device includes an anode, a cathode, and an organic layer disposed between the anode and the cathode, the organic layer at least including a first compound having a H 1 -L 1 -Ar 1 structure and a H 2 -L 2 - The second compound of Ar 2 structure. This novel combination of compounds can be used as host materials in electroluminescent devices. These new compound combinations can greatly improve device lifetime and provide better device performance. Also disclosed is a display assembly including the electroluminescent device. |