Display device

1. A display device comprising:

a base layer comprising a first area and a second area adjacent to the first area;

a pixel circuit layer disposed on the base layer and comprising a pixel circuit and a plurality of insulation layers;

a first electrode electrically connected to the pixel circuit;

a second electrode spaced apart from the first electrode and disposed on a same layer as the first electrode;

a light emitting element electrically connected to the first electrode and the second electrode;

a first refraction layer disposed on the pixel circuit layer and having a first refractive index; and

a second refraction layer disposed on the light emitting element and having a second refractive index larger than the first refractive index, wherein

the first area overlaps the light emitting element and the second refraction layer,

and the second area overlaps the first refraction layer.

2. The display device of claim 1 , wherein the light emitting element comprises a micro light emitting diode element.

3. The display device of claim 1 , further comprising an encapsulation layer covering the light emitting element and the pixel circuit.

4. The display device of claim 3 , wherein:

the first refraction layer and the second refraction layer are disposed on the encapsulation layer;

the first refraction layer is disposed to surround the first area on a plane; and

the second refraction layer overlaps the first area and the second area.

5. The display device of claim 3 , further comprising a light blocking layer disposed on the encapsulation layer to overlap the pixel circuit.

6. The display device of claim 5 , wherein the light blocking layer and the first refraction layer are disposed adjacent to each other and covered by the second refraction layer.

7. The display device of claim 5 , wherein the first refraction layer is disposed on the light blocking layer to cover the light blocking layer.

8. The display device of claim 4 , further comprising a color filter layer overlapping the first area and disposed between the encapsulation layer and the second refraction layer.

9. The display device of claim 8 , further comprising:

a light blocking layer disposed on the second refraction layer to overlap the pixel circuit; and

a planarization layer disposed on the second refraction layer to cover the light blocking layer and provide a planarization surface.

10. The display device of claim 4 , further comprising:

a light blocking layer disposed on the second refraction layer to overlap the pixel circuit; and

a color filter layer disposed on the second refraction layer and overlapping the first area.

11. The display device of claim 4 , further comprising a pattern layer disposed below the encapsulation layer, the pattern layer covering the light emitting element and having a third refractive index, wherein

the encapsulation layer has a fourth refractive index smaller than the third refractive index.

12. The display device of claim 11 , further comprising:

a light blocking layer disposed on the second refraction layer to overlap the pixel circuit; and

a color filter disposed on the second refraction layer to overlap the light emitting element.

13. The display device of claim 11 , further comprising:

a color filter disposed between the encapsulation layer and the second refraction layer to overlap the light emitting element;

a light blocking layer disposed on the second refraction layer to overlap the pixel circuit; and

a planarization layer configured to cover the light blocking layer and provide a planarization surface.

14. The display device of claim 11 , further comprising:

a light blocking layer disposed on the encapsulation layer to overlap the pixel circuit;

a color filter layer disposed on the encapsulation layer to overlap the light emitting element; and

a planarization layer configured to cover the light blocking layer and the color filter layer, wherein

the first refraction layer and the second refraction layer are disposed on the planarization layer.

15. The display device of claim 1 , wherein:

the second refraction layer covers the light emitting element; and

the first refraction layer is disposed on the second refraction layer and the pixel circuit layer to cover the second refraction layer.

16. The display device of claim 15 , wherein an outermost surface of the second refraction layer contacts the first refraction layer and has a predetermined curvature.

17. The display device of claim 15 , further comprising a light blocking layer, which does not overlap the light emitting element, wherein

the light blocking layer is disposed between the first refraction layer and the pixel circuit layer.

18. The display device of claim 17 , further comprising:

a color filter layer disposed on the first refraction layer to overlap the light emitting element; and

a planarization layer disposed on the first refraction layer to cover the color filter layer.

19. The display device of claim 15 , further comprising:

a light blocking layer which does not overlap the light emitting element and is disposed on the first refraction layer;

a color filter layer disposed on the first refraction layer to overlap the light emitting element; and

a planarization layer disposed on the first refraction layer to cover the color filter layer.

20. The display device of claim 1 , wherein:

a groove is defined in the pixel circuit layer by an inclined part comprising an end of each of the plurality of insulation layers; and

the light emitting element is disposed in the groove.

21. The display device of claim 20 , wherein:

the inclined part is covered by the first electrode and the second electrode; and

each of the first electrode and the second electrode comprises a reflective material.

22. The display device of claim 20 , wherein the groove has a depth greater than a thickness of the light emitting element.