Patent ID: 8008852

Claim:
An organic light-emitting display device comprising: a blue light-emitting portion, a green light-emitting portion and a red light emitting portion which are placed on a substrate; an organic light-emitting layer in each of the light-emitting portions; and an upper electrode and a lower electrode for causing each of the organic light-emitting layers to emit light, wherein one of the upper electrode and the lower electrode is a transparent electrode, and the other is a reflecting electrode, wherein the distances from the organic light-emitting layers to the upper electrodes are the same in at least two of the light-emitting portions; wherein the three light-emitting portions have a film thickness relationship between the transparent electrode and the organic light-emitting layer represented as (blue light-emitting portion=red light-emitting portion<green light-emitting portion); and wherein film thicknesses between the reflecting electrodes and the organic light-emitting layers are the same in said three light-emitting portions.