US Patent 7485376 Organic electroluminescent element, illuminator, and display

Disclosed are an organic electroluminescent element comprising a light emission layer containing a phosphorescent compound and a hole transporting layer adjacent thereto containing a hole transporting material, wherein the hole transporting material has a 0-0 band of the phosphorescence spectra of from 300 to 450 nm and has a molecular weight of not less than 550, and an illuminator and a display each comprising the organic electroluminescent element.