Patent ID: 7855508
Filing Date: 2010-12-21
Classification: H01L

Abstract:
1. A white light-emitting microcavity 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 cavity, and wherein either the reflective or semi-transparent electrode is patterned to form a plurality of independently-controllable light-emitting sub-pixel 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 independently-controllable light-emitting elements to form colored sub-pixels, the plurality of color filters having at least two different colors and wherein at least one independently-controllable light-emitting element has at least two commonly-controlled portions that together emit substantially white light to form a white sub-pixel; and d) wherein the optical cavity of one or more of the commonly-controlled portions of the white sub-pixel comprises a plurality of optical microcavities, each optical microcavity tuned to emit light at a different complementary wavelength and emission angle.