Slidable display device

1 . A display device comprising:

a display panel comprising a first area and a second area, which are arranged in a first direction;

a cover layer disposed on a rear surface of the display panel to overlap the first area;

an adhesive layer which attaches the cover layer to the display panel;

a first support layer disposed below the cover layer to overlap the first area, wherein a plurality of openings is defined in the first support layer; and

a second support layer disposed on the rear surface of the display panel to overlap the second area and spaced apart from the cover layer in the first direction,

wherein the cover layer comprises:

an elastic layer comprising an elastomer; and

a primer layer disposed on a surface of the elastic layer and comprising a light blocking material.

2 . The display device of claim 1 , wherein the elastic layer comprises at least one selected from thermoplastic polyurethane, silicone, elastolefin, thermoplastic olefin, polyamide, polyether block amide, synthetic polyisoprene, polybutadiene, fluoroelastomer, and ethylene-vinyl acetate.

3 . The display device of claim 1 , wherein the elastic layer is consisting of the elastomer.

4 . The display device of claim 1 , wherein the elastic layer does not comprise the light blocking material.

5 . The display device of claim 1 , wherein the primer layer comprises a base resin and a light blacking material dispersed in the base resin.

6 . The display device of claim 5 , wherein the primer layer comprises about 70 wt % or greater and about 85 wt % or less of the base resin, and about 15 wt % or greater and about 30 wt % or less of the light blocking material, based on a total content of the primer layer.

7 . The display device of claim 1 , wherein

the elastic layer comprises a top surface adjacent to the display panel and a bottom surface adjacent to the first support layer, and

the primer layer comprises a first primer layer disposed on the top surface and a second primer layer disposed on the bottom surface.

8 . The display device of claim 1 , wherein

the elastic layer comprises a top surface adjacent to the display panel, and

the primer layer is disposed directly on the top surface of the elastic layer, and the adhesive layer is disposed directly on a top surface of the primer layer.

9 . The display device of claim 1 , wherein the primer layer has a thickness of about 0.5 μm or greater and about 2 μm or less.

10 . The display device of claim 1 , wherein the elastic layer has a modulus of about 150 MPa or greater and about 300 MPa or less under a temperature of about −20° C.

11 . The display device of claim 1 , wherein the plurality of openings is arranged in a lattice shape on a plane.

12 . The display device of claim 1 , wherein at least a portion of the first area of the display panel is foldable about an axis extending in a second direction crossing the first direction.

13 . The display device of claim 12 , wherein

the display panel further comprises a third area spaced apart from the second area with the first area therebetween, and

a top surface of the second area and a top surface of the third area face each other in a state where at least a portion of the first area is folded.

14 . The display device of claim 1 , further comprising:

a plurality of support bars disposed below the first support layer to be spaced apart from each other in the first direction,

wherein each of the plurality of support bars extends in a second direction crossing the first direction.

15 . The display device of claim 14 , wherein the plurality of support bars do not overlap the plurality of openings on a plane.

16 . A display device comprising:

a display panel comprising a first area and a second area, which are arranged in a first direction;

a cover layer disposed on a rear surface of the display panel to overlap the first area;

an adhesive layer which attaches the cover layer to the display panel; and

a support layer disposed below the cover layer, wherein a plurality of openings is defined in the support layer to overlap the first area,

wherein the cover layer comprises:

an elastic layer comprising thermoplastic polyurethane; and

a primer layer disposed on a surface of the elastic layer and comprising polyurethane and a light blocking material.

17 . The display device of claim 16 , further comprising:

wherein the primer layer is disposed on directly the surface of the elastic layer, and the adhesive layer is disposed directly on a top surface of the primer layer.

18 . The display device of claim 16 , wherein the primer layer comprises about 70 wt % or greater and about 85 wt % or less of the polyurethane, and about 15 wt % or greater and about 30 wt % or less of the light blocking material, based on a total content of the primer layer.

19 . A display device operating in a first mode and a second mode in which a display surface is expanded when a mode is changed from the first mode to the second mode, the display device comprising:

a display panel comprising a first area and a second area, which are arranged in a first direction;

a cover layer disposed on a rear surface of the display panel to overlap the first area; and

an adhesive layer which attaches the cover layer to the display panel,

wherein, at least a portion of the first area is foldable in the first mode, and

the cover layer comprises:

an elastic layer comprising an elastomer; and

a primer layer disposed on a surface of the elastic layer and comprising a light blocking material.