Light-emitting element package

A light-emitting element package comprising:

• a plurality of light-emitting structures spaced from each other in a first direction, the plurality of light-emitting structures comprising a first light-emitting structure, a second light-emitting structure and a third light-emitting structure, each of the plurality of light-emitting structures being configured to emit light of a first color;
• and
• a light conversion layer disposed on the plurality of light-emitting structures, the light conversion layer comprising a first wavelength conversion layer disposed at a first location corresponding to the first light-emitting structure and a second wavelength conversion layer disposed at a second location corresponding to the second light-emitting structure,
• wherein the first wavelength conversion layer comprises a quantum dot and is configured to convert light of the first color into light of a second color, and
• wherein the second wavelength conversion layer comprises a quantum well and is configured to convert light of the first color into light of a third color.

A light-emitting element package comprising:

• a plurality of electrodes disposed in a first oxide film;
• a plurality of light-emitting structures disposed on the first oxide film, the plurality of light-emitting structures being spaced from each other in a first direction, emitting light of a first color, and comprising a first light-emitting structure, a second light-emitting structure and a third light-emitting structure;
• a first light conversion layer disposed on the plurality of light-emitting structures, the first light conversion layer comprising a quantum dot at a first position corresponding to the first light-emitting structure and partition walls;
• and
• a second light conversion layer disposed on the first light conversion layer, the second light conversion layer comprising a second oxide film and a quantum well at a second position corresponding to the second light-emitting structure,
• wherein the quantum dot is configured to convert light of the first color into light of a second color,
• wherein the quantum well is configured to convert light of the first color into light of a third color,
• wherein the quantum dot is interposed between two of the partition walls, and
• wherein the quantum dot and the quantum well do not overlap each other in a second direction that crosses the first direction.