Light-emitting devices having multiple encapsulation layers with at least one of the encapsulation layers including nanoparticles and methods of forming the same

摘要

A light-emitting device includes an active region that is configured to emit light responsive to a voltage applied thereto. A first encapsulation layer at least partially encapsulates the active region and includes a matrix material and nanoparticles, which modify at least one physical property of the first encapsulation layer. A second encapsulation layer at least partially encapsulates the first encapsulation layer.

主权项

1. A light-emitting device, comprising:
an active region that is configured to emit light responsive to a voltage applied thereto; a first encapsulation layer that at least partially encapsulates the active region, the first encapsulation layer comprising a first matrix material and serving a first encapsulation layer function corresponding to a first encapsulation layer physical property; and a second encapsulation layer that at least partially encapsulates the first encapsulation layer, the second encapsulation layer comprising a second matrix material and first nanoparticles and serving a second encapsulation layer function corresponding to a second encapsulation layer physical property, the second encapsulation function being different from the first encapsulation layer function, wherein the first encapsulation layer is arranged between the active region and the second encapsulation layer and defines a separation therebetween, wherein the first encapsulation layer is substantially without first nanoparticles, and wherein the first nanoparticles modify the second encapsulation layer physical property including at least one of light scattering, diffraction, thermal conductivity, mechanical strength, abrasion resistance, and optical stability.