Light-emitting device with improved light emission efficiency and display apparatus including the same

A light-emitting device comprising:

• a reflective layer;
• a first electrode on the reflective layer;
• a second electrode facing the first electrode;
• a phase correction layer provided between the first electrode and the second electrode;
• a first emission layer provided between the first electrode and the phase correction layer;
• a second emission layer provided between the phase correction layer and the second electrode;
• a first partial transmission mirror provided between the phase correction layer and the first emission layer;
• and
• a second partial transmission mirror provided between the phase correction layer and the second emission layer,
• wherein the first partial transmission mirror and the second partial transmission mirror are arranged such that a first or higher order resonance mode is formed between the reflective layer and the first partial transmission mirror, and a second or higher order resonance mode is formed between the reflective layer and the second electrode.

A display apparatus comprising:

• a plurality of pixels,
• wherein each of the plurality of pixels comprises:
• a reflective layer;
• a first electrode provided on the reflective layer;
• a second electrode facing the first electrode;
• a first emission layer provided between the first electrode and the second electrode;
• a second emission layer provided between the first emission layer and the second electrode;
• and
• a partial transmission mirror provided between the first emission layer and the second emission layer so that a first or higher order resonance mode is formed between the reflective layer and the partial transmission mirror, and a second or higher order resonance mode is formed between the reflective layer and the second electrode.