Patent ID: 7915805

Claim:
An organic electroluminescent display comprising: an insulating substrate; a first electrode, an organic light-emitting layer, and a second electrode which are sequentially disposed on a first surface of the insulating substrate; and a plurality of convex patterns disposed on a substantially planar second surface of the insulating substrate opposite to the first surface and spaced apart from each other, the patterns being formed of a transparent sealant having a viscosity of 25,000 to 150,000 cp and comprised of an epoxy- or acrylate-based resin, and a plurality of concave patterns interposed between the convex patterns and disposed on the substantially planar second surface of the insulating substrate, the concave patterns being formed of the same material as the convex patterns, wherein the convex patterns and the concave patterns are semicircular or semi-ellipsoidal in section profile, and the top surfaces of the concave patterns contact the second surface of the insulating substrate.