Patent ID: 7888858

Claim:
A light-emitting diode device, comprising: a) a substrate; b) a reflective electrode and a semi-transparent electrode formed over the substrate and an unpatterned white light-emitting layer formed between the reflective electrode and the semi-transparent electrode, the reflective electrode, semi-transparent electrode, and unpatterned white-light-emitting layer forming an optical microcavity, and wherein either the reflective or semi-transparent electrode is patterned to form a plurality of independently controllable light-emitting elements; c) a plurality of color filters formed over a side of the semi-transparent electrodes opposite the unpatterned white light-emitting-layer in correspondence with the light-emitting elements, the plurality of color filters having at least two different colors and wherein at least one light-emitting element has no color filter; and d) wherein the light-emitting element having no color filter includes a plurality of optical microcavities tuned to one or more peak wavelengths approximately corresponding to the peak emission wavelengths of the white light-emitting layer, each optical microcavity tuned to emit light at a different wavelength.