| abstract |
Compounds useful for organic light emitting devices are provided. The present invention provides a benzo-fused thiophene compound having triphenylene. In addition, the present invention provides benzo-fused furan compounds having triphenylene. These compounds are useful as organic light emitting devices, particularly as the host in the light emitting layer of such devices, the facilitating layer material of such devices, or both. [Selection] Figure 3 |