Patent ID: 8004178

Claim:
An organic light emitting diode display comprising: a substrate comprising a pixel area and a non-pixel area; a plurality of pixels formed in the pixel area, each pixel comprising a thin film transistor and an organic light emitting diode element; a power line formed with a substantially uniform width in the non-pixel area configured to supply a common power voltage to the plurality of pixels, wherein the power line is formed on only one side of the pixel area; a cathode electrode formed on the substrate; a cathode power line formed in the non-pixel area on a same layer as the power line and on the only one side of the pixel area, coupled to the cathode electrode, and configured to supply a cathode voltage to the pixels; a cathode power input terminal coupled to the cathode power line; and a power input terminal coupled to the power line, wherein the power input terminal crosses the cathode power line.