An organic light emitting diode display device can include a substrate; a plurality of pixels disposed on the substrate; a plurality of anodes corresponding to the plurality of pixels, respectively; an organic light emitting layer disposed on the plurality of anodes; a cathode layer disposed on the organic light emitting layer; and a step difference compensation layer partitioning at least two adjacent pixels among the plurality of pixels, in which the step difference compensation layer includes a base layer, and a plurality of spike patterns disposed on the base layer, the plurality of spike patterns including protrusions that extend into at least a portion of the organic light emitting layer in a region between the at least two adjacent pixels.