Pixel and display device having the same
A display device includes a pixel located in a display area, the pixel including: a first electrode and a second electrode spaced from each other on a base layer; a first insulating layer and a second insulating layer sequentially stacked on the first electrode and the second electrode; a light emitting element on the second insulating layer and located between the first electrode and the second electrode; and a light control layer interposed between the first insulating layer and the second insulating layer and overlapping the light emitting element.
1. A display device comprising a pixel located in a display area, the pixel comprising:
a first electrode and a second electrode spaced from each other above a base layer;
a first insulating layer above the first electrode and the second electrode;
a light control layer above the first insulating layer;
a second insulating layer above the light control layer; and
a light emitting element above the second insulating layer, overlapping the light control layer, and overlapping an area between the first electrode and the second electrode.
2. The display device according to claim 1 , wherein the light control layer is located under the light emitting element and overlapping at least an active layer of the light emitting element.
3. The display device according to claim 1 , wherein the light control layer has a width greater than a distance between the first electrode and the second electrode.
4. The display device according to claim 1 , wherein the second insulating layer has a thickness equal to or greater than a thickness of the light control layer, the second insulating layer completely covering the light control layer.
5. The display device according to claim 1 , wherein the light control layer comprises a reflective layer.
6. The display device according to claim 5 , wherein the reflective layer comprises a floated metal pattern.
7. The display device according to claim 5 , wherein the reflective layer comprises at least one of aluminum (Al), gold (Au), and silver (Ag).
8. The display device according to claim 1 , wherein the light control layer comprises a scattering layer comprising at least one type of light scattering particles.
9. The display device according to claim 1 , wherein the light control layer comprises:
a reflective layer on the first insulating layer; and
a scattering layer on the reflective layer.
10. The display device according to claim 1 , wherein the light emitting element comprises a first end portion adjacent to the first electrode and a second end portion adjacent to the second electrode, and
wherein the pixel further comprises a third electrode connecting the first end portion of the light emitting element to the first electrode, and a fourth electrode connecting the second end portion of the light emitting element to the second electrode.
11. The display device according to claim 10 , further comprising at least one of:
a third insulating layer locally placed on one area of the light emitting element to expose the first end portion and the second end portion of the light emitting element;
a fourth insulating layer on the third insulating layer and the fourth electrode; and
a fifth insulating layer on the first to fourth electrodes and the light emitting element.
12. The display device according to claim 1 , further comprising at least one of:
a first bank under one area of each of the first electrode and the second electrode; and
a second bank surrounding an emission area of the pixel, the light emitting element being in the emission area.
13. The display device according to claim 1 , further comprising a circuit layer interposed between the base layer and the first and second electrodes, the circuit layer comprising a circuit element connected to the light emitting element.
14. A pixel comprising:
a first electrode and a second electrode spaced from each other;
a first insulating layer above the first electrode and the second electrode;
a light control layer above the first insulating layer;
a second insulating layer above the light control layer; and
a light emitting element above the second insulating layer, overlapping the light control layer, and overlapping an area between the first electrode and the second electrode.
15. The pixel according to claim 14 , wherein the light control layer comprises a reflective layer.
16. The pixel according to claim 14 , wherein the light control layer comprises a scattering layer comprising at least one type of light scattering particles.
17. The pixel according to claim 14 , wherein the light control layer comprises:
a reflective layer on the first insulating layer; and
a scattering layer on the reflective layer.