An electron emission device having various functional electrodes in addition to the electrodes serving to emit electrons includes: first and second substrates facing each other, and cathode and gate electrodes arranged on the first substrate within an effective electron emission area and including an insulating layer interposed therebetween. The electron emission regions are electrically connected to the cathode electrodes. At least one dummy electrode is arranged external to the effective electron emission area. At least one anode electrode is arranged on the second substrate. Phosphor layers are arranged on one surface of the anode electrode.