Abstract: A field emission device including: a first substrate on which at least one gate electrode line, at least one cathode line, and at least one electron emission source are formed; a second substrate on which an anode and a phosphor layer are formed; a side frame which is interposed between the first substrate and the second substrate and surrounds an area between the first substrate and the second substrate to form a sealed internal space, wherein the first substrate is offset from the second substrate by a predetermined length in a first direction perpendicular to a direction in which the first substrate and the second substrate are spaced apart from each other by the side frame; a rear terminal part through which a voltage is applied to the gate electrode line and the cathode line, and which is formed on a protruding region of the first substrate protruding by the predetermined length; and an anode terminal part through which a voltage is applied to the anode, wherein the anode terminal has a first end which c