Display device and method of fabricating the same
A display device includes: a substrate having an emission area and a non-emission area; a first bank in the non-emission area of the substrate and having an opening; electrodes on the first bank and spaced apart from each other; a second bank on the electrodes; and light emitting elements on the second bank between the electrodes. The second bank has a first area overlapping the light emitting elements and a second area in the opening in the first bank.
1. A display device comprising:
a substrate having an emission area and a non-emission area;
a first bank in the non-emission area of the substrate and having an opening;
electrodes on the first bank and spaced apart from each other;
a second bank on the electrodes; and
light emitting elements on the second bank between the electrodes,
wherein the second bank has a first area overlapping the light emitting elements and a second area in the opening in the first bank.
2. The display device according to claim 1 , wherein a thickness of the second area of the second bank is greater than a thickness of the first area of the second bank.
3. The display device according to claim 1 , wherein a thickness of the second area of the second bank is identical as a thickness of the first bank.
4. The display device according to claim 1 , wherein the electrodes extend from the opening in the first bank.
5. The display device according to claim 1 , further comprising signal lines on the substrate,
wherein the electrodes are electrically connected to the signal lines through a contact opening.
6. The display device according to claim 5 , wherein the second area of the second bank overlaps the contact opening.
7. The display device according to claim 1 , further comprising an insulating layer on the electrodes.
8. The display device according to claim 7 , further comprising connection electrodes on the insulating layer and electrically connected to the light emitting elements.
9. The display device according to claim 8 , wherein the connection electrodes are electrically connected to the electrodes through a contact opening passing through the insulating layer.
10. The display device according to claim 7 , wherein the second bank is between the electrodes and the insulating layer.
11. A method of fabricating a display device, the method comprising:
forming a first bank having an opening in a non-emission area of a substrate;
forming, on the first bank, electrodes spaced apart from each other;
simultaneously forming a first area of a second bank on the electrodes and a second area of the second bank in the opening in the first bank; and
providing light emitting elements to the first area of the second bank.
12. The method according to claim 11 , wherein a thickness of the second area of the second bank is greater than a thickness of the first area of the second bank.
13. The method according to claim 11 , wherein a thickness of the second area of the second bank is identical as a thickness of the first bank.
14. The method according to claim 11 , wherein the electrodes extend from the opening in the first bank.
15. The method according to claim 11 , further comprising:
forming an insulating layer on the electrodes; and
forming connection electrodes on the light emitting elements.
16. The method according to claim 15 , wherein the connection electrodes are electrically connected to the electrodes through a contact opening passing through the insulating layer.
17. The method according to claim 15 , further comprising surface-treating the insulating layer on the first area of the second bank.
18. The method according to claim 17 , wherein the light emitting elements are on the insulating layer.
19. The method according to claim 11 , wherein the first bank and the second bank are formed of an identical material.
20. The method according to claim 11 , wherein the first bank and the second bank are formed of different materials.