Organic light-emitting display apparatus

An organic light-emitting display apparatus, comprising:

• a substrate;
• a first electrode on the substrate;
• a second electrode on the first electrode;
• a first organic emissive layer between the first electrode and the second electrode, the first organic emissive layer to emit a first light;
• a second organic emissive layer between the first electrode and the second electrode, the second organic emissive layer to emit a second light having a different color from the first light;
• an auxiliary layer on the second electrode, the auxiliary layer having a refractive index equal to or higher then about 2.2, the auxiliary layer having a thickness of about 280 Å to about 400 Å;
• an encapsulation substrate on the auxiliary layer, the encapsulation substrate covering the first organic emissive layer, the second organic emissive layer, and the auxiliary layer;
• and
• a charging layer between the auxiliary layer and the encapsulation substrate, the charging layer being in contact with the auxiliary layer and the encapsulation substrate.