The New Host Materials for Blue Phosphorescent Emitter and Organic Light-Emitting Diodes Using This

摘要

This invention relates to a novel phosphorescent host material and a blue organic light emitting device using the same , and more particularly relates to an organic light emitting device using the host material and the host material for blue phosphorescent organic light-emitting device having the formula (1) or (2) . CBP-E1 and mCP-E1 of the present invention may be used as a host material for a phosphorescent organic light , because it maintains similar to the rate of movement of holes and electrons In case of manufacturing the organic light emitting device can obtain a high efficiency .