Display device

1. A display device comprising:

a first sub-display panel; and

a second sub-display panel adjacent to the first sub-display panel in a first direction,

wherein the first sub-display panel includes:

a first pixel adjacent to the second sub-display panel; and

a first ground line disposed between the first pixel and the second sub-display panel and extending in a second direction crossing the first direction, and

wherein the second sub-display panel includes:

a second pixel adjacent to the first sub-display panel; and

a second ground line disposed between the second pixel and the first sub-display panel and extending in the second direction, and

wherein the first and second pixels each include a light emitting diode.

2. The display device of claim 1 , wherein the first ground line and the second ground line are adjacent to each other.

3. The display device of claim 1 , further comprising a third sub-display panel adjacent to the first sub-display panel in the second direction,

wherein the first sub-display panel further includes a third ground line disposed between the first pixel and the third sub-display panel and extending in the first direction.

4. The display device of claim 3 , wherein the first pixel is adjacent to the third sub-display panel.

5. The display device of claim 3 , wherein the first ground line and the third ground line are perpendicular to each other.

6. The display device of claim 3 , wherein a portion of the first ground line overlaps a portion of the third ground line.

7. The display device of claim 6 , wherein the first and third ground lines are electrically connected through a contact hole at a portion where the first and third ground lines overlap each other.

8. The display device of claim 3 , wherein the first sub-display panel further includes a gate line extending in the first direction and electrically connected to the first pixel.

9. The display device of claim 8 , wherein the first ground line crosses the gate line.

10. The display device of claim 8 , wherein the first sub-display panel further includes:

a third pixel adjacent to the first pixel, spaced apart from the second sub-display panel by the first pixel, and electrically connected to the gate line; and

a dummy line disposed between the first pixel and the third pixel and extending in the second direction.

11. The display device of claim 10 , wherein the dummy line crosses the gate line.

12. The display device of claim 10 , wherein the dummy line includes a same material as the first ground line.

13. The display device of claim 8 , wherein the first sub-display panel further includes:

a fourth pixel spaced apart from the first pixel in a third direction opposite to the first direction and electrically connected to the gate line; and

a connection line disposed between the first pixel and the fourth pixel, extending in the second direction, and electrically connected to the gate line.

14. The display device of claim 13 , wherein the connection line includes a same material as the first ground line.

15. The display device of claim 8 , wherein the first sub-display panel further includes:

a substrate;

a first insulating layer disposed on the substrate;

a gate electrode disposed on the first insulating layer;

a second insulating layer covering the gate electrode; and

a connection electrode disposed on the second insulating layer,

wherein the first ground line and the connection electrode are disposed in a first ground-line layer.

16. The display device of claim 15 , wherein the third ground line and the gate electrode are disposed in a third ground-line layer.

17. The display device of claim 15 , wherein the gate line and the gate electrode are disposed in a gate-line layer.

18. The display device of claim 1 , wherein the first ground line contacts the second ground line.

19. The display device of claim 1 , wherein the first ground line is spaced apart from the second ground line.

20. The display device of claim 1 , wherein the first and second ground lines protect the first and second pixels from static electricity.