A light emission device includes a first substrate having a plurality of recesses having a longitudinal axis extending in a first direction on a front surface of the first substrate; a first electrode in each of the plurality of recesses and having a longitudinal axis extending in the first direction; an electron emission part on the first electrode; a plurality of second electrodes extending in a second direction and crossing the plurality of recesses; a second substrate facing the first substrate; a third electrode and a phosphor layer on a rear surface of the second substrate facing the first substrate; an adhesive member on the second electrode and on the front surface of the first substrate; and a spacer contacting the adhesive member to maintain a space between the first and second substrates.