An organic light emitting display having red, green, blue, cyan, magenta, and yellow color modulation layers. The organic light emitting display includes a substrate, a first electrode arranged on the substrate, a second electrode arranged on the first electrode, an organic functional layer arranged between the first electrode and the second electrode, the organic functional layer comprises at least an emission layer, and red, green, blue, cyan, magenta, and yellow color modulation layers separated from each other, wherein one of the first electrode and the second electrode is transparent and is arranged between each color modulation layer and the emission layer. Accordingly, it is possible to maintain white balance even for an aged display while having enhanced color reproducibility.