Patent ID: 8049231

Claim:
An emissive multicolor digital image forming (imager) device comprising; a two dimensional array of multicolor light emitting pixels whereby each multicolor light emitting pixel comprises: a plurality of light emitting diode semiconductor structures, each for emitting a different color, stacked vertically with a grid of vertical sidewalls electrically and optically separating each multicolor pixel from adjacent multicolor pixels within the array of multicolor pixels; and a plurality of vertical waveguides optically coupled to the light emitting diode semiconductor structures to vertically emit light generated by the light emitting diode semiconductor structures from a first surface of the stack of diode semiconductor structures; the stack of light emitting diode semiconductor structures being stacked onto a digital semiconductor structure by a second surface opposite the first surface of the stack of light emitting diode semiconductor structures; and a plurality of digital semiconductor circuits in the digital semiconductor structure, each electrically coupled to receive control signals from the periphery of the digital semiconductor structure and electrically coupled to the multicolor light emitting diode semiconductor structures by vertical interconnects embedded within the vertical sidewalls to separately control the on/off states of each of the multicolor light emitting diode semiconductor structures.