Disclosed herein is an organic light-emitting display (OLED) device including: a substrate comprising an active area and an inactive area surrounding the active area; a first planarization layer; a second planarization layer; an organic light-emitting element; an encapsulation layer comprising a first inorganic layer, a second inorganic layer and a first organic member; a first structure in the inactive area and comprising a first support layer made of the same material as the first planarization layer or the second planarization layer, a second structure in the inactive area and comprising a second support layer made of the same material as the first planarization layer or the second planarization layer.