Patent ID: 7156715

Claim:
A fabricating method of a triode structure of a field emission display, comprising steps of: providing a lower substrate made of a transparent and insulating material; forming a plurality of transverse-extending conductive layers overlying the inner surface of the lower substrate; forming a dielectric layer overlying the conductive layers and the lower substrate; forming a plurality of openings arranged in a matrix in the dielectric layer to expose portions of the conductive layers; forming a metal layer overlying the dielectric layer, in which the metal layer filling the openings serves as a plurality of contact layers electrically connected to the conductive layers, respectively; patterning the metal layer on the dielectric layer, such that a plurality of cathode layers, arranged in a matrix, and a plurality of lengthwise-extending gate layers are formed from the same metal layer, in which each of the cathode layers is connected to each of the contact layers, and each of the gate layers is disposed between two adjacent columns of cathode layers; and forming 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.