Patent ID: 8207668

Claim:
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; and 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; 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, and e) wherein one of the commonly-controlled portions of the white sub-pixel is tuned to emit light having a peak wavelength greater than 550 nm at a normal angle and further comprising a color filter formed over the one of the commonly-controlled portions of the white sub-pixel, the color filter absorbing a substantial amount of the light having a wavelength less than 550 nm, wherein the optical cavities of the colored sub-pixels are tuned to an approximate peak wavelength corresponding to the peak transmission wavelength of the corresponding color filter.