Patent ID: 8810128

Claim:
An organic electroluminescent device comprising: a first electrode being light reflective and made of metal; a second electrode being light transmissive; an organic light emitting layer provided between the first electrode and the second electrode and configured to emit an emitted light, the emitted light including a first peak of a first wave length and a second peak of a second wavelength, a difference between the first wave length and the second wavelength being not less than 40 nanometers; and an intermediate layer provided between the organic light emitting layer and the first electrode, the intermediate layer contacting the organic light emitting layer and the first electrode, the intermediate layer being transmissive with respect to the emitted light, a thickness of the intermediate layer being 60 nanometers or more and less than 200 nanometers, and a refractive index of the organic light emitting layer at the first wavelength being higher than a refractive index of the intermediate layer at the first wavelength, and a refractive index of the organic light emitting layer at the second wavelength being higher than a refractive index of the intermediate layer at the second wavelength.