Patent ID: 7548021

Claim:
An organic light-emitting diode (OLED) device, comprising: first and second transparent electrodes, and one or more layers of organic material formed between the first and second transparent electrodes, the one or more layers of organic material including one or more light-emitting layers; a reflective layer having a surface plasmon-polariton-supporting reflective surface located on a side of either of the first or second transparent electrodes through which light is emitted from the device opposite to the and one or more organic material layers, the reflective layer being located on a side of the one or more layers of organic material opposite to the emission side of the device; and a scattering layer in optical contact with the one or more organic material layers and the first and second transparent electrode, wherein the scattering layer is on a side of the one or more light-emitting layers opposite the surface plasmon-polariton-supporting reflective surface, and wherein the distance between the surface plasmon-polariton-supporting reflective surface and at least one of the one or more light-emitting layers is equal to or greater than 60 nm.