Display device

1. A display device comprising:

a display panel in which a first panel region, a bending region, and a second panel region are arranged along a first direction;

a support layer below the first panel region of the display panel, wherein the bending region of the display panel is bent toward a lower portion of the support layer;

a portion of the support layer is between the first panel region and the second panel region;

a first alignment mark in the first panel region; and

a first alignment opening overlapping the first alignment mark in the support layer,

wherein in a thickness direction of the display panel, the first alignment opening is spaced apart from the second panel region,

the first alignment opening is spaced apart from an edge of the support layer, and

the first alignment opening is completely surrounded by the support layer.

2. The display device of claim 1 , wherein in the thickness direction, the first alignment opening is spaced apart from the second panel region in a second direction intersecting the first direction.

3. The display device of claim 1 , wherein the first alignment opening is provided in plurality, and the plurality of first alignment openings are spaced apart with the second panel region therebetween.

4. The display device of claim 3 , wherein the first alignment mark is provided in plurality, and the display panel is aligned with the support layer so that the plurality of first alignment marks respectively overlap the plurality of first alignment openings.

5. The display device of claim 1 , wherein:

the support layer comprises a first edge and a second edge which extend along the first direction, and a third edge and a fourth edge which extend along a second direction intersecting the first direction; and

the bending region is bent while surrounding the fourth edge, and the first alignment opening is closest to the fourth edge among the first to the fourth edges.

6. The display device of claim 5 , wherein:

the display panel further comprises a second alignment mark in the first panel region;

a second alignment opening overlapping the second alignment mark is defined in the support layer; and

the second alignment opening is closest to the first edge among the first to the fourth edges.

7. The display device of claim 6 , wherein:

the second alignment opening is spaced apart from the first edge; and

the second alignment opening is completely surrounded by the support layer.

8. The display device of claim 6 , wherein:

the second alignment opening is connected to the first edge; and

the first edge and a sidewall defining the second alignment opening are connected to each other.

9. The display device of claim 1 , wherein:

a foldable region is in the first panel region; and

a plurality of openings are in a region of the support layer overlapping the foldable region.

10. The display device of claim 9 , wherein the first alignment opening is spaced apart from the plurality of openings in the first direction.

11. The display device of claim 1 , wherein:

the display panel comprises: a base layer; a circuit layer on the base layer and including a plurality of metal layers; a light emitting element layer on the circuit layer; and an encapsulating layer on the light emitting element layer; and

the first alignment mark is on a same layer as any one of the plurality of metal layers.

12. The display device of claim 1 , wherein a sidewall defining the first alignment opening has a closed curve shape.

13. A display device comprising:

a display panel in which a first panel region, a bending region, and a second panel region are arranged along a first direction;

a support layer below the first panel region of the display panel, with the bending region of the display panel being bent toward a lower portion of the support layer;

a portion of the support layer between the first panel region and the second panel region; and

a plurality of alignment openings in the support layer,

wherein a distance of the plurality of alignment openings in a second direction intersecting the first direction is greater than a width of the second panel region in a second direction, and

each of the plurality of alignment openings is completely surrounded by the support layer.

14. The display device of claim 13 , wherein the plurality of alignment openings are spaced apart with the second panel region interposed therebetween.

15. The display device of claim 13 , wherein sidewalls respectively defining the plurality of alignment openings are in the support layer, and

wherein each of the sidewalls has a closed curve shape.

16. The display device of claim 13 , wherein the display panel comprises a plurality of alignment marks in the first panel region, and

the plurality of alignment marks respectively overlap the plurality of alignment openings.

17. The display device of claim 16 , wherein:

the display panel further comprises: a base layer; a circuit layer on the base layer and including a plurality of metal layers; a light emitting element layer on the circuit layer; and an encapsulating layer on the light emitting element layer; and

each of the plurality of alignment marks is on a same layer as any one of the plurality of metal layers.

18. The display device of claim 13 , wherein:

the plurality of alignment openings are adjacent to an edge of the support layer; and

the bending region of the display panel is bent while surrounding the edge of the support layer.

19. The display device of claim 13 , wherein:

a foldable region is in the first panel region; and

a plurality of openings are in a region of the support layer overlapping the foldable region of the display panel.

20. The display device of claim 19 , wherein the plurality of alignment openings are spaced apart from the plurality of openings in the first direction.