Organic electroluminescent light emitting device

摘要

An organic EL light emitting device with some contrast improvement is provided at low cost yet with no provision of an antireflection coating film. The device comprises a transparent substrate, and an anode, a light emitting layer and a cathode formed thereon in the described order. The anode contains indium oxide doped with tin and/or zinc, and iron in such a way as to have a light transmittance of 30 to 70% in a light emitting wavelength range.