Light emitting device and display apparatus including the same

A display apparatus comprising:

• a first pixel configured to emit light of a first wavelength;
• and
• a second pixel configured to emit light of a second wavelength different from the first wavelength,
• wherein the first pixel comprises:
• a first electrode;
• a first light emitting structure disposed on the first electrode, the first light emitting structure having a parallel plate shape;
• a second electrode disposed on the first light emitting structure, the second electrode having a parallel plate shape;
• a first phase shifting mirror formed on a top surface of the first electrode, the first phase shifting mirror comprising a plurality of patterns arranged in a periodic manner;
• a dielectric layer formed between the plurality of patterns of the phase shifting mirror, the dielectric layer begin configured to completely cover top surfaces of the plurality of patterns;
• and
• a transparent electrode disposed between the dielectric layer and the light emitting structure,
• wherein each of the plurality of patterns comprises a top surface and a side surface between the top surface of the respective pattern and the top surface of the first electrode,
• wherein a first width of a bottom portion of the respective pattern directly adjacent to the top surface of the first electrode is greater than a second width of the top surface of the respective pattern,
• wherein the first width and the second width are less than a wavelength of light generated in the first light emitting structure.

A light emitting device comprising:

• a first electrode;
• a phase shifting mirror formed on a top surface of the first electrode, the phase shifting mirror comprising a plurality of patterns arranged with an interval between adjacent patterns;
• a light emitting structure disposed above the first electrode and the phase shifting mirror, the light emitting structure having a parallel plate shape;
• and
• a second electrode disposed on the light emitting structure, the second electrode having a parallel plate shape;
• a dielectric layer formed between the plurality of patterns of the phase shifting mirror, the dielectric layer being configured to completely cover top surfaces of the plurality of patterns;
• and
• a transparent electrode disposed between the dielectric layer and the light emitting structure,
• wherein a dimension of each of the plurality of patterns is configured based on a wavelength of light generated in the light emitting structure,
• wherein a first width of a bottom portion of a pattern, among the plurality of patterns, directly adjacent to the top surface of the first electrode is greater than a second width of a top surface of the pattern.