An organic EL display device includes a rectangular first substrate, an organic EL diode unit formed on the first substrate, a rectangular second substrate formed on the organic EL diode unit, a frame-shaped adhesive section configured to attach the first substrate to the second substrate to surround the organic EL diode unit, an extraction interconnection group constituted by a plurality of extraction interconnections extracted from the organic EL diode unit, and a dummy interconnection group formed at an adhesive region at which the adhesive section of the first substrate is attached and constituted by a plurality of dummy interconnections that are separated from each other, wherein the extraction interconnection and the dummy interconnection cross the adhesive section in the same direction.