Tiled display device

1. A tiled display device comprising:

a first display device;

a second display device located at one side of the first display device in a first direction;

a first chassis disposed under the first display device to support the first display device; and

a second chassis disposed under the second display device to support the second display device,

wherein:

an end portion of the first chassis and an end portion of the second chassis are directly connected to each other;

an end portion of the first display device and an end portion of the second display device come into direct contact with each other;

a reference line extending along a portion where the end portion of the first display device and the end portion of the second display device come into direct contact with each other is defined;

the end portion of the first chassis includes first chassis convex portions protruding from the reference line to one side in the first direction, and first chassis concave portions recessed from the reference line to the other side in the first direction, which are alternately arranged;

the end portion of the second chassis includes second chassis convex portions protruding from the reference line to the other side in the first direction, and second chassis concave portions recessed from the reference line to one side in the first direction, which are alternately arranged; and

the first display device overlaps the first chassis concave portion and the second chassis convex portion in a thickness direction which crosses the first direction and the second direction.

2. The tiled display device of claim 1 , wherein:

pitches of the first chassis convex portions and pitches of the first chassis concave portions, which are alternately arranged, are uniform; and

pitches of the second chassis convex portions and pitches of the second chassis concave portions, which are alternately arranged, are uniform.

3. The tiled display device of claim 2 , wherein:

the first chassis convex portions and the second chassis concave portions correspond to each other; and

the second chassis convex portions and the first chassis concave portions correspond to each other.

4. The tiled display device of claim 1 , wherein;

the second display device overlaps the second chassis concave portion and the first chassis convex portion in the thickness direction.

5. The tiled display device of claim 4 , wherein:

the first display device does not overlap the first chassis convex portion in the thickness direction; and

the second display device does not overlap the second chassis convex portion in the thickness direction.

6. The tiled display device of claim 1 , further comprising black matrixes disposed at one surface facing the first display device of the first chassis and one surface facing the second display device of the second chassis.

7. The tiled display device of claim 1 , further comprising a third chassis disposed under the first chassis, and a fourth chassis disposed under the second chassis,

wherein an end portion of the third chassis includes third chassis convex portions protruding from the reference line to one side in the first direction, and third chassis concave portions recessed from the reference line to the other side in the first direction, which are alternately arranged, and

an end portion of the fourth chassis includes fourth chassis convex portions protruding from the reference line to the other side in the first direction, and fourth chassis concave portions recessed from the reference line to one side in the first direction, which are alternately arranged.

8. The tiled display device of claim 7 , wherein:

the third chassis convex portions and the first chassis convex portion are alternately arranged along the second direction in a plan view; and

the fourth chassis convex portions and the second chassis convex portions are alternately arranged along the second direction in a plan view.

9. The tiled display device of claim 1 , wherein:

each of the display devices includes a display region including a plurality of pixels, and a non-display region located around the display region; and

each of the plurality of pixels includes an inorganic light emitting element.

10. A tiled display device comprising:

a first display device;

a second display device located at one side of the first display device in a first direction;

a first chassis disposed under the first display device to support the first display device; and

a second chassis disposed under the second display device to support the second display device,

wherein:

an end portion of the first chassis and an end portion of the second chassis are directly connected to each other;

an end portion of the first display device and an end portion of the second display device come into direct contact with each other;

a reference line extending along a portion where the end portion of the first display device and the end portion of the second display device come into direct contact with each other is defined;

the end portion of the first chassis includes first chassis convex portions protruding from the reference line to one side in the first direction, and first chassis concave portions recessed from the reference line to the other side in the first direction, which are alternately arranged;

the end portion of the second chassis includes second chassis convex portions protruding from the reference line to the other side in the first direction, and second chassis concave portions recessed from the reference line to one side in the first direction, which are alternately arranged;

pitches of the first chassis convex portions and pitches of the first chassis concave portions, which are alternately arranged, are uniform;

pitches of the second chassis convex portions and pitches of the second chassis concave portions, which are alternately arranged, are uniform;

the first chassis convex portions and the second chassis concave portions correspond to each other;

the second chassis convex portions and the first chassis concave portions correspond to each other;

the first chassis convex portion includes a first- 1 chassis convex portion protruding from the reference line by a first width, and a first- 2 chassis convex portion protruding from the reference line by a third width; and

the third width is greater than the first width.

11. The tiled display device of claim 10 , wherein:

the first chassis concave portion is recessed from the reference line by a second width; and

the second width is equal to the third width.

12. The tiled display device of claim 11 , wherein:

the second chassis convex portion includes a second- 1 chassis convex portion protruding from the reference line by a fourth width, and a second- 2 chassis convex portion protruding from the reference line by a sixth width; and

the sixth width is greater than the fourth width, and the sixth width is equal to the third width.

13. The tiled display device of claim 12 , wherein:

the second chassis concave portion is recessed from the reference line by a fifth width; and

the fifth width is equal to the sixth width.

14. The tiled display device of claim 13 , wherein:

the first- 1 chassis convex portion is spaced apart from the second chassis concave portion by a predetermined distance; and

the second- 1 chassis convex portion is spaced apart from the first chassis concave portion by a predetermined distance.

15. The tiled display device of claim 14 , wherein:

the first- 2 chassis convex portion is directly connected to the second chassis concave portion; and

the second- 2 chassis convex portion is directly connected to the first chassis concave portion.

16. The tiled display device of claim 15 , wherein:

connection portions between the first chassis and the second chassis include a first connection portion located at one side in a second direction crossing the first direction, a second connection portion located at the other side in the second direction, and a third connection portion located between the first connection portion and the second connection portion; and

in the second connection portion, the end portion of the first chassis does not include the first- 2 chassis convex portion, and the end portion of the second chassis does not include the second- 2 chassis convex portion.

17. The tiled display device of claim 16 , wherein, in the first and third connection portions, the first- 2 chassis convex portion and the second chassis concave portion are directly connected to each other, and the second- 2 chassis convex portion and the first chassis concave portion are directly connected to each other.

18. A tiled display device comprising:

a first display device;

a second display device located at one side of the first display device in a first direction;

a first chassis disposed under the first display device to support the first display device; and

a second chassis disposed under the second display device to support the second display device,

wherein:

an end portion of the first chassis and an end portion of the second chassis are directly connected;

an end portion of the first display device and an end portion of the second display device come into direct contact with each other;

wherein:

the first chassis includes:

a first convex portion located at one side in a second direction crossing the first direction and protruding in the first direction from a reference line extending in the second direction by a first width;

a second convex portion located at one side in a second direction and protruding in the first direction from the reference line by a second width; and

a third convex portion located between the first connection portion and the second connection portion and protruding in the first direction from the reference line by a third width, and

the third width is greater than each of the first width and the second width.

19. The tiled display device of claim 18 , wherein: the second chassis includes:

a first concave portion accommodating the first convex portion and recessed in the first direction by a fourth width;

a second concave portion accommodating the second convex portion and recessed in the first direction by a fifth width; and

a third concave portion accommodating the third convex portion and recessed in the first direction by a sixth width;

the sixth width is greater than each of the fourth width and the fifth width.