Patent ID: 7161289

Claim:
A triode structure of a field emission display, comprising: a lower substrate made of a transparent and insulating material; a plurality of transverse-extending conductive layers formed overlying the inner surface of the lower substrate; a dielectric layer formed overlying the conductive layers and the lower substrate, in which the dielectric layer comprises a plurality of openings arranged in a matrix to expose portions of the conductive layers; a plurality of contact layers formed in the openings to electrically connect the conductive layers, respectively; a plurality of cathode layers arranged in a matrix and formed overlying the dielectric layer, in which each of the cathode layers is connected to each of the contact layers; a plurality of emitting layers arranged in a matrix, in which each of the emitting layers is formed overlying an electron-emitting area of each cathode layer; and a plurality of lengthwise-extending gate layers formed on the dielectric layer, in which each of the gate layers is disposed between two adjacent columns of the cathode layers, wherein the gate layers and the cathode layers are on the same level relative to a top surface of the dielectric layer.