Patent ID: 7294962

Claim:
An organic electroluminescent display device, comprising: a thin film transistor formed in a non-emission region on an insulating substrate and having source and drain electrodes; a lower electrode formed in an emission region on the insulating substrate and connected to one electrode of the source and drain electrodes through a contact hole; an organic emission layer formed in the emission region on the lower electrode; and an upper electrode formed on the organic emission layer, wherein the lower electrode has a surface with its corners rounded off, and wherein the lower electrode has an upper surface in which a center of radius of curvature is at its corners so that the radius of curvature is zero, and a lower surface in which the center of radius of curvature is at a point on the same axis as an axis perpendicular to a plane on which the center of radius of curvature of the upper surface is positioned so that the radius of curvature is larger than zero.