Patent ID: 7332859
Filing Date: 2008-02-19
Classification: H01L

Abstract:
1. A top-emission organic luminescence device having a light-emitting layer comprising: (a) a pair of mutually opposed electrodes, wherein said pair of electrodes are a first electrode provided on a substrate and a transparent second electrode disposed farther from said substrate than said first electrode; (b) an anti-reflection layer provided on said transparent second electrode and in contact therewith at an interface therebetween, wherein the anti-reflection layer has a refractive index less than the transparent second electrode, and a side of the anti-reflection layer opposite to the interface is in contact with an external environment, and the thickness of said anti-reflection layer satisfies the following equation: where d represents the thickness of said anti-reflection layer, λ represents a wavelength of light emitted from the light-emitting layer, and n represents the refractive index of said anti-reflection layer and (c) an organic light-emitting layer formed between said pair of electrodes, wherein the reflection of the light emitted from the light-emitting layer at the interface of the side of the transparent second electrode opposite to the organic light emitting layer is prevented by said anti-reflection layer.