The organic electroluminescent device having the structure capable of dispensing a sealant uniformly on the entire cap-bonding area of a substrate is disclosed. The electroluminescent display device according to the present invention comprises a substrate on which an active area is formed; a plurality of scan lines of a scan line group and a plurality of data lines of a data line group being respectively extended from cathode electrodes and anode electrodes formed in the active area; auxiliary patterns formed on the substrate, each auxiliary pattern being formed in a space between two adjacent line groups arranged on a cap-bonding area of the substrate; and a cap bonded to the cap-bonding area through a sealant.