Display device
A display device includes: a display module; and a plate on one side of the display module. The plate has a folding portion and a plurality of grooves in the folding portion. The grooves neighbor each other in a first direction and a second direction perpendicular to the first direction. A width of the groove in the first direction is in a range of 50 μm to 150 μm, and a length of the groove in the second direction is in a range of 2 mm to 4 mm.
1. A display device comprising:
a display module; and
a plate on one side of the display module, the plate having a folding portion and a plurality of grooves in the folding portion,
wherein the grooves neighbor each other in a first direction and a second direction perpendicular to the first direction,
wherein a width of the groove in the first direction is in a range of 50 μm to 150 μm,
wherein a length of the groove in the second direction is in a range of 2 mm to 4 mm, and
wherein an elasticity coefficient of the folding portion is in a range of 0.5 MPa to 50 MPa.
2. The display device of claim 1 , wherein a distance from among the grooves neighboring in the first direction is in a range of 100 μm to 200 μm.
3. The display device of claim 1 , wherein a distance from among the grooves neighboring in the second direction is in a range of 150 μm to 300 μm.
4. The display device of claim 1 , wherein the display device is configured to be folded with respect to the second direction.
5. The display device of claim 1 , further comprising a protection member between the display module and the plate,
wherein the protection member does not include a groove at a position overlapping the folding portion.
6. The display device of claim 1 , wherein the plate comprises reinforced plastic.
7. A display device comprising:
a display module; and
a plate on one side of the display module, the plate has a first folding portion and a second folding portion and a plurality of grooves in each of the first and second folding portions,
wherein the first folding portion is configured to be folded in a direction so that a displaying side of the display module becomes concave,
wherein the second folding portion is configured to be folded in a direction so that a displaying side of the display module becomes convex,
wherein the grooves neighbor each other in a first direction and a second direction perpendicular to the first direction,
wherein a width of the groove in the first direction is in a range of 50 μm to 150 μm,
wherein an elasticity coefficient of the first folding portion is in a range of 0.5 MPa to 10 MPa,
wherein an elasticity coefficient of the second folding portion is in a range of 0.5 MPa to 50 MPa, and
wherein the first folding portion has a lesser elasticity coefficient than the second folding portion.
8. The display device of claim 7 , wherein a folding direction of the first folding portion is opposite to a folding direction of the second folding portion.
9. The display device of claim 7 , wherein the first folding portion has a lesser curvature than the second folding portion.
10. The display device of claim 7 , wherein a width of one of the grooves in the first folding portion in the first direction is less than a width of one of the grooves in the second folding portion in the first direction.
11. The display device of claim 7 , wherein a length of the groove in the second direction is in a range of 2 mm to 4 mm.
12. The display device of claim 7 , wherein a distance from among the grooves neighboring in the first direction is in a range of 100 μm to 200 μm.
13. The display device of claim 7 , wherein a distance from among the grooves neighboring in the second direction is in a range of 150 μm to 300 μm.
14. The display device of claim 7 , wherein the plate has a third folding portion and a plurality of grooves in the first folding portion, and
wherein the first folding portion and the third folding portion are configured to be folded in a same direction.
15. The display device of claim 14 , wherein the plate has a fourth folding portion and a plurality of grooves in the fourth folding portion, and
wherein the second folding portion and the fourth folding portion are configured to be folded in the same direction.