Display device including a film having a groove and a burr
A display device and a method of manufacturing a display device are provided. A manufacturing method of a display device includes: forming a display module including a first area defined therein, the display module including a display panel including a lower surface and an upper surface opposite the lower surface, a first film under the lower surface of the display panel, a second film on the upper surface of the display panel, and an adhesive layer between the lower surface of the display panel and the first film; and irradiating a laser beam in an upper direction extending from the lower surface of the display panel to the upper surface of the display panel to cut the first film and the adhesive layer along an edge of the first area, the laser beam provided to the display panel having a laser power equal to or less than about 1 W.
1. A display device comprising:
a display panel including a display area and a non-display area adjacent to each other and a first area that crosses the display area and the non-display area in a first direction and bent about a reference axis extending in the first direction;
a first film under a lower surface of the display panel, and including a film groove overlapping the first area; and
an adhesive layer between the display panel and the first film, and including an adhesive groove overlapping the first area and exposing the lower surface of the display panel overlapping the first area;
wherein the first film includes a burr overlapping the first area and protruding from a lower surface of the first film.
2. The display device of claim 1 , wherein the first film includes an upper film and a lower film spaced apart in a second direction crossing the first direction based on the film groove, and
the adhesive layer includes an upper adhesive layer overlapping the upper film and a lower adhesive layer overlapping the lower film spaced apart in the second direction.
3. The display device of claim 2 , wherein the burr comprises a first burr and a second burr,
wherein the first burr protrudes from the upper film adjacent to the film groove, and
the second burr protrudes from the lower film adjacent to the film groove.
4. The display device of claim 3 , wherein the first burr and the second burr overlap each other in a bent state.
5. The display device of claim 1 , wherein a side surface of the first film defining the film groove and a side surface of the adhesive layer defining the adhesive groove are aligned with each other.
6. The display device of claim 5 , wherein an angle between the aligned side surfaces and the lower surface of the display panel is an acute angle.
7. The display device of claim 1 , wherein an area exposed by the adhesive groove and the film groove of the display panel, and an other area have different crystallization degree.
8. The display device of claim 7 , wherein a difference in the crystallization degree is within 5%.
9. The display device of claim 8 , wherein a crystallization degree of the area exposed by the adhesive groove and the film groove of the display panel is lower than a crystallization degree of the other area.
10. The display device of claim 1 , wherein the first film comprises polyethylene terephthalate (PET).
11. The display device of claim 1 , further comprising a polarizing plate disposed on the display panel.
12. The display device of claim 1 , wherein the burr is formed by removing the first film with a laser beam.