Light emitting diode device

Abstract

A light emitting diode device can include a pair of opposed electrodes and a thin film multilayer structure interposed between the pair of electrodes. The device can include one or more light emitting layers each having an emission interface. In the device, there can be adjacent layers having an interfacial plane therebetween. The interfacial plane being disposed in a position where an optical path length from the emission interface to the interfacial plane is substantially equal to, or less than, the coherent length of light emitted from the emission interface. Furthermore, the difference in refractive index between the adjacent layers is substantially equal to, or less than, 0.6. This can eliminate an interference effect within the thin film multilayer structure, thereby enhancing light emitting efficiency and achieving intended light color.

Dependencies are inferred from the claim text.