Abstract:
An electron emission device includes a cathode electrode formed by depositing a conductive substance on a substrate; a first insulating layer formed to expose a portion of the cathode electrode by applying an insulating substance on the cathode electrode; a gate electrode formed by depositing a metal substance on the first insulating layer; a second insulating layer formed of an insulating substance on the gate electrode; a first focus electrode formed of a metal substance on the second insulating layer; a third insulating layer formed of an insulating substance on a region of the first focus electrode; a second focus electrode formed of a metal substance on the third insulating layer; and an electron emitter formed in a region on which the portion of the cathode electrode is exposed.