Display device having recessed bending area

1. A display device comprising:

a display panel including:

a main area, a bending area at which the display panel is bendable, and a sub area, in order,

the main area including a display area and a non-display area which is adjacent to the display area, and

the bending area recessed from outer side surfaces of the main area and the sub area, to define a recess portion of the display panel at the bending area, and

a protective layer facing the display panel, the protective layer including:

a first protective film corresponding to the main area of the display panel,

a second protective film corresponding to the sub area of the display panel, and

a protective layer protrusion portion in the recess portion of the display panel.

2. The display device according to claim 1 , wherein

the bending area includes an outer side surface which defines the recess portion of the display panel, together with the main area and the sub area, and

the protective layer protrusion portion extends from the outer side surface of the bending area, in a direction towards the outer side surfaces of the main area and the sub area.

3. The display device according to claim 2 , wherein

the first protective film, the second protective film and the protective layer protrusion portion are respective portions of a same material layer, and

the first protective film, the second protective film and the protective layer protrusion portion are disconnected from each other at the bending area of the display panel.

4. The display device according to claim 2 , wherein the display panel which is bent provides the first protective film and the second protective film overlapping each other along a thickness direction of the display panel.

5. The display device according to claim 2 , further comprising an adhesive layer corresponding to the second protective film,

wherein the display panel which is bent provides the adhesive layer between the first protective film and the second protective film along a thickness direction of the display panel.

6. The display device according to claim 5 , wherein

the adhesive layer includes a first surface and a second surface opposing each other, and

the display panel which is bent further provides:

the first surface of the adhesive layer facing the first protective film and in contact with the first protective film, and

the second surface of the adhesive layer facing the second protective film and in contact with the second protective film.

7. The display device according to claim 1 , wherein the recess portion comprises:

a first surface defined by a side surface of the main area of the display panel;

a second surface facing the first surface, the second surface defined by a side surface of the sub area of the display panel and; and

a third surface extended between the first surface and the second surface, the third surface defined by an outer side surface of the bending area of the display panel.

8. The display device according to claim 7 , wherein the recess portion includes the third surface spaced apart from the outer side surfaces of the main area and the sub area.

9. The display device according to claim 8 , wherein

the recess portion is recessed from the outer side surfaces of the main area and the sub area along a first direction,

the first surface has a width along the first direction, and

the width of the first surface is about 400 nanometers to about 800 nanometers.

10. The display device according to claim 1 , wherein the display area comprises:

a front display area including a first side and a second side which meets the first side;

a first side display area extending from the first side of the front display area; and

a second side display area extending from the second side of the front display area.