Patent ID: 6933664

Claim:
A method of manufacturing an electron-emitting device, comprising the steps of: (A) providing a substrate having a gate electrode; (B) forming an insulating layer on a surface of the gate electrode; (C) forming a cathode electrode on a surface of the insulating layer, wherein a width of the cathode electrode is shorter than that of the gate electrode; (D) after the forming of the cathode electrode on the surface of the insulating layer, arranging a plurality of carbon fibers on a surface of the cathode electrode; and (E) connecting a voltage source, for causing an electron emission from at least some of the plurality of carbon fibers arranged on at least part of the surface of the cathode electrode which is located in a region between both ends defining the width of the gate electrode, to the cathode electrode and the gate electrode, so that a potential of the gate electrode is higher than that of the cathode electrode.