Abstract: An organic light emitting diode display comprises: an insulating substrate; common electrodes; a first electrode layer formed in a region adjacent to the common electrodes formed on the insulating substrate by electrically isolating from the common electrodes; an insulating layer which coats on the insulating substrate by respectively opening a first opening window exposing a part of the common electrodes and a second opening window exposing at least a part of the first electrode layer; ribs which form a cell area by crossing the common electrodes on the insulating substrate and surrounding each of the opening windows; a material layer formed on the first electrode layer exposed from the second opening window; and a second electrode layer which coats within the cell area surrounded by the ribs and electrically connected to the common electrodes through the first opening window.