Stacked organic light-emitting device, and image display apparatus and digital camera including the same

A stacked organic light-emitting device, comprising:

• a first organic compound layer;
• a second organic compound layer;
• a third organic compound layer;
• and
• a common transparent electrode,
• the first organic compound layer, the second organic compound layer, and the third organic compound layer having emission colors different from each other,
• wherein the first organic compound layer and the second organic compound layer are stacked via the common transparent electrode,
• wherein the first organic compound layer and the third organic compound layer are stacked via the common transparent electrode,
• wherein the first organic compound layer, the second organic compound layer, and the third organic compound layer separately emit light,
• wherein the first organic compound layer has a polarity direction opposite to a polarity direction of the second organic compound layer, and
• wherein the first organic compound layer has the polarity direction opposite to a polarity direction of the third organic compound layer.