Organic light emitting display

An organic light emitting display comprising:

• first and second electrodes facing each other on a substrate;
• a red light emitting layer, a green light emitting layer and a blue light emitting layer formed between the first and second electrodes;
• a hole-transporting layer formed between the first electrode and each of the red light emitting layer, the green light emitting layer and the blue light emitting layer;
• and
• an electron-transporting layer formed between the second electrode and each of the red light emitting layer, the green light emitting layer and the blue light emitting layer,
• wherein at least one light emitting layer of the red light emitting layer, the green light emitting layer and the blue light emitting layer comprises:
• a first light emitting layer comprising a light emitting host and a light emitting dopant;
• and
• a second light emitting layer which is formed between the first light emitting layer and at least one of the electron-transporting layer and the hole-transporting layer, and comprises the light emitting dopant.