Patent ID: 6518699
Filing Date: 2003-02-11
Classification: H01J

Abstract:
A computer system comprising:a central processing unit; a memory device coupled to the central processing unit, the memory device storing instructions and data for use by the central processing unit; and a display, the display including: a faceplate comprising a cathodoluminescent material-coated first surface; a plurality of emitters formed on a second surface of a substrate, the first surface disposed parallel to and near the second surface, each emitter of the plurality of emitters formed on and electrically coupled to a n-tank, each n-tank formed at a surface of a p-type material, a depletion region being formed adjacent to a peripheral boundary of each n-tank, also including an insulating region adjacent to a lower boundary of each n-tank substantially opposite from the corresponding emitter, the insulating region electrically isolating the emitter and the n-tank from the p-type semiconductor substrate along at least a portion of the lower boundary; a dielectric layer formed on the second surface, the dielectric layer having a thickness slightly less than a height of the emitters in the plurality of emitters, the dielectric layer including openings each formed about one of the plurality of emitters, the depletion regions being substantially outwardly displaced by the insulating regions from an area that is illuminable by photons passing through the openings, respectively; and an extraction grid comprising conductive material formed on the dielectric layer, the extraction grid substantially in a plane defined by tips of the plurality of emitters and including openings each formed surrounding a tip of one of the plurality of emitters.