A dual plate organic electro-luminescent device includes a first substrate and a second substrate having pixel regions, wherein the first substrate and the second substrate facing each other, a thin film transistor on the first substrate in each of the pixel regions, a first electrode on the second substrate, a bus line on the first electrode in regions other than the pixel regions such that the bus line has a round shape at each corner portion of each pixel region, barrier ribs on outside portions of the bus line so as to surround each of the pixel regions, an organic electro-luminescent layer on the first electrode in each of the pixel regions, a second electrode formed on the barrier rib and the organic electro-luminescent layer in each of the pixel regions, and a connection pattern connecting the thin film transistor and the second electrode.