| 摘要 |
According to a first aspect of the present invention there is provided an organic electroluminescent device comprising: a transparent substrate (20); a first electrode (24) disposed over the substrate; a second electrode (30) disposed over the first electrode; an organic light-emitting layer (28) dispose (between the first and the second electrode, wherein the second electrode is reflective, the first electrode is transparent or semi-transparent, and one or more intermediate layers (22) of dielectric material with a refractive index greater than 1.8 or a metal material is disposed between the substrate and the first electrode forming a semi-transparent mirror whereby a microcavity is provided between the reflective second electrode and the semi-transparent mirror all the intermediate layers disposed between the substrate and the first electrode having a surface nearest the organic light-emitting layer not more than 150nm from a surface of the first electrode nearest the organic light-emitting layer. |
