Patent ID: 7560747
Filing Date: 2009-07-14
Classification: H01L

Abstract:
1. A light-emitting LED device, comprising: one or more light-emitting LED elements including first and second spaced-apart electrodes with one or more light-emitting layers formed there-between, wherein at least one of the electrodes is a transparent electrode; a first transparent encapsulating barrier layer having a first optical index formed over the transparent electrode opposite the light-emitting layer; a light-scattering layer formed over the first transparent encapsulating barrier layer opposite the transparent electrode; a second transparent encapsulating barrier layer, having a second optical index lower than the first optical index, formed over the light-scattering layer opposite the first transparent encapsulating barrier layer; and an organic third transparent encapsulating layer having a third optical index lower than the first optical index formed between the light-scattering layer and the second transparent encapsulating barrier layer.