Patent ID: 8530916

Claim:
An organic electroluminescent device comprising; a light-transmissive substrate; an organic light emitting layer; a light-transmissive electrode disposed between said light-transmissive substrate and said organic light emitting layer; and a light guiding layer which is disposed between said substrate and said light-transmissive electrode, and configured to alter light direction; wherein said organic electroluminescent device is configured to emit light from said organic light emitting layer, and allow the light to propagate out through said light guiding layer, said light-transmissive electrode, and said light-transmissive substrate, wherein said light guiding layer includes a light dispersion layer, said light dispersion layer being formed with a light dispersion region and a light-transmissive region, which are arranged in a coplanar relation within said light dispersion layer, said light dispersion region containing light dispersion particles and a binder resin, said light-transmissive region containing said light dispersion particles at a lower ratio than said light dispersion region, wherein said light dispersion layer comprises a planar area which is parallel to the light-transmissive substrate and the organic light emitting layer, and wherein the coplanar relation of the light dispersion region and the light-transmissive region is defined as being in a same plane within said planar area.