US Patent 8004180 Organic light emitting display and its method of fabrication

An organic light emitting display is divided into a light emitting region and a non-light emitting region, the non-light emitting region of the organic light emitting display including: a first substrate; a first passivation layer and a second passivation layer sequentially arranged on the first substrate and having a step in an undercut shape; and an auxiliary electrode layer, an El common layer, and a second layer sequentially arranged throughout the non-light emitting region including the first and second passivation layers, the auxiliary electrode layer being shorted to the second layer in the step at the slope of the second passivation layer or shorted to the first passivation layer in the undercut shape arranged under the second passivation layer.