DIIMIDAZOLE COMPOUND AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME

摘要

The invention provides a diimidazole compound and an organic electroluminescent device using the same and more particularly, the diimidazole compounds according to the invention have excellent blue luminescent characteristics and hole transmission characteristics and at the same time, they not only can be used as a blue luminescent material or used as a host to a variety of phosphorescent or fluorescent dopants such as red, green, blue and white but also enable high efficient luminescence when applied to organic electroluminescent devices and can confer such performances as low voltage, high brightness and long lifetime.