ORGANIC ELECTROLUMINESCENT DEVICE

摘要

Disclosed is an organic electroluminescent device comprising electrodes composed of an anode and a cathode, a first organic layer arranged between the electrodes in contact with or close to the anode and containing a hole transporting polymer compound, and a second organic layer arranged between the first organic layer and the cathode in contact with the first organic layer and containing an electron transporting polymer compound. This organic electroluminescent device is characterized in that the hole transporting polymer compound and the electron transporting polymer compound are defined by specific parameters, and at least one of the first organic layer and the second organic layer contains a light-emitting material defined by a specific parameter. The organic electroluminescent device is also characterized by emitting light of a specific color from the first organic layer or the first organic layer and the second organic layer. This organic electroluminescent device is excellent in luminous efficiency and driving voltage. ® KIPO & WIPO 2009