An organic light emitting display device and a method of fabricating the same are disclosed. The organic light emitting display device includes a first organic light emitting diode and a second organic light emitting diode. The first organic light emitting diode has a first electrode, a second electrode,...http://www.google.se/patents/US7855507?utm_source=gb-gplus-sharePatent US7855507 - Organic light emitting display device and fabricating method of the same having organic light emitting diodes stacked in a double layer