Phosphorescene emission materials manufacturing for OLED and OLED comprising the same

摘要

The present invention relates to an Ir-based transition metal compound represented by the following Chemical Formulas 1 and 2 and to a blue luminescence and an organic electroluminescent device comprising the same.;Chemical Formula 1 Chemical Formula 2;In the above formula, R ¹ is hydrogen and an electron donating group, and alkyl, aryl, alkylsilyl, alkoxy, aryloxy, dialkylamino, etc., and R ² to R ⁵ are each independently hydrogen or cyano. And X, Y each independently represent a hetero atom, a boron or a halogen atom containing a carbon atom, and include ligands which may or may not be connected to each other to chelate bonds.;Organic light emitting diode