Organic light-emitting display device and production method of the same

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.