ELECTROLUMINESCENT ELEMENT, LIQUID CRYSTAL DISPLAY AND ILLUMINATING DEVICE

摘要

Disclosed is an organic electroluminescent device having excellent power efficiency wherein white balance can be easily controlled. Also disclosed are a liquid crystal display and an illuminating device respectively using such an organic electroluminescent device. Specifically disclosed is an organic electroluminescent device having three or more light-emitting layers of different emission wavelengths, while containing a phosphorescent dopant having an emission maximum wavelength of 440-490 nm in a solid state in at least one of the light-emitting layers. This organic electroluminescent device is characterized in that the ionization potential energy of the phosphorescent dopant is lower than 5.1 eV and than the ionization potential energy of at least one other light-emitting dopant.