Patent ID: 9640777
Date: 2017-05-02
CPC Classifications: H01L

Claim:
1. An electroluminescent (EL) device, comprising: a nanostructured composite electrode, that is consisting essentially of a first layer having a nanostructure and a second layer disposed on the nanostructure, wherein the first and second layers are transparent and conducting, and one of the refractive-indexes of the first and second layers is lower than or equal to 1.65, and the other of the refractive-indexes of the first and second layers is higher than or equal to 1.75; one or more functional layers including a light emitting layer, disposed on the second layer; and an top electrode, disposed on the functional layers; wherein each of feature pits and each of intervals between the feature pits of the nanostructure of the first layer are smaller than or equal to a major wavelength of light emitted from the light emitting layer.