| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an electron emission device capable of uniformly forming the electric field on the surface of an emitter in driving a display device, to emit electrons from the whole surface of the emittter, which results in minimizing the diffusion of electron beams to enhance the color purity of a screen and minimizing the degradation of the emitter to extend the service life of the emitter. <P>SOLUTION: This electron emission device includes first and second substrates opposedly arranged with an optional space; cathode electrodes formed on the first substrate; gate electrodes formed on an insulating layer for covering the cathode electrodes; and electron emission parts formed on the cathode electrodes within apertures formed in the gate electrodes and the insulating layer. The surface shape of the electron emission part is formed to correspond to an equipotential line formed at the aperture, along the equipotential line on condition that predetermined driving voltages are applied to the cathode electrodes, gate electrodes and anode electrode. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
