ORGANIC LIGHT EMITTING DISPLAY DEVICE

An organic light emitting display device includes a substrate including first to third pixel regions; and an organic light emitting diode including a transparent electrode, a reflective electrode and a light emitting layer between the transparent electrode and the reflective electrode. The light emitting layer in the organic light emitting diode in the first pixel region includes a first emitting part including a first emitting material layer and a second emitting part including a second emitting material layer. The light emitting layer in the organic light emitting diode in the second pixel region includes a third emitting part including a third emitting material layer and fourth emitting part including a fourth emitting material layer. Each of the first and fourth emitting material layers is a fluorescent emitting layer, and each of the second and third emitting material layers is a phosphorescent emitting layer.