Organic light-emitting display apparatus

An organic light-emitting display apparatus comprising a first sub-pixel, a second sub-pixel, and a third sub-pixel that are different in color from each other, the apparatus comprising:

• a substrate;
• a first electrode disposed on the substrate;
• a second electrode disposed on the first electrode so as to face the first electrode;
• an organic emission layer disposed between the first electrode and the second electrode and comprising a first organic emission layer, a second organic emission layer, and a third organic emission layer;
• a hole transport layer disposed between the first electrode and the organic emission layer;
• and
• an electron accepting layer disposed between the first electrode and the second electrode so as to contact the organic emission layer,
• wherein the first organic emission layer is disposed in the first sub-pixel, the second organic emission layer is disposed in the second sub-pixel, and the third organic emission layer is commonly disposed across all of the first sub-pixel, the second sub-pixel, and the third sub-pixel,
• wherein the electron accepting layer is disposed between the first organic emission layer and the third organic emission layer in the first sub-pixel and between the second organic emission layer and the third organic emission layer in the second sub-pixel,
• wherein the third organic emission layer comprises a first material having a hole transporting ability, a blue host, and a dopant, and
• wherein the third sub-pixel does not comprise the electron accepting layer.