An electron emission device includes: a substrate; first and second electrodes insulated from each other and arranged on the substrate and having predetermined shapes; an electron emission region arranged on the substrate; and a first passivation layer entirely covering at least one of the first and second electrodes and exposing at least a portion of the electron emission region. An electron emission display includes: first and second substrates opposed to each other; first and second electrodes insulated from each other and arranged transversely to each other on the first substrate and having predetermined shapes; an electron emission region arranged on the substrate; a first passivation layer entirely covering at least one of the first and second electrodes and exposing at least a portion of the electron emission region; and an image display substrate having an anode electrode and a fluorescent layer arranged on the second substrate.