An organic electroluminescent display device (OELD) that prevents particles from creating blind spots by forming a recess or a groove in the surface of an insulating layer that covers edges of a pixel electrode. The OELD includes a lower electrode arranged on a substrate, an insulating layer arranged on the substrate, the insulating layer having an aperture adapted to expose a portion of the lower electrode, an organic layer arranged on the exposed portion of the lower electrode, and an upper electrode arranged on the substrate, wherein the insulating layer includes a recess and/or a groove in its surface.