| 摘要 |
<p>PURPOSE: A blue or green host compound and an organic electroluminescent device using the same are provided to enhance brightness, chromatic purity and lifetime property. CONSTITUTION: An organic electroluminescent device comprises an anode(20), a cathode(80), and a light-emitting layer(50) between the anode and cathode. The light-emitting layer includes one host compound selected from the host compounds represented by chemical formula 1 and one or more dopants compounds selected from dopants compounds represented by formula 2. One or more layers selected from a hole injection layer(30), a hole transport layer(40), an electron blocking layer, a hole blocking layer, an electron-transport layer(60) and an electron injection layer(70) are additionally included between the anode and cathode.</p> |
