Flexible display apparatus
A flexible display apparatus includes a substrate having a bending portion, a display over the substrate, and a cover over the substrate and covering the display. The cover includes a first film having a first surface and a second surface opposite the first surface, a second film over the first film, and an adhesive layer between the first film and the second film and attaching the first film to the second film. The first film includes at least one division line in at least some regions thereof in a direction from the first surface toward the second surface.
1. A flexible display apparatus comprising:
a substrate having a bending portion;
a display over the substrate; and
a cover over the substrate and covering the display,
wherein the cover comprises:
a first film having a first surface and a second surface opposite the first surface;
a second film over the first film; and
an adhesive layer between the first film and the second film and attaching the first film to the second film, and
the first film comprises at least one division line in at least some regions thereof in a direction from the first surface toward the second surface, wherein the at least one division line penetrates from the first surface to the second surface of the first film, wherein the cover is bent towards the first film such that tensile stress is applied to the first film.
2. The flexible display apparatus of claim 1 , wherein the at least one division line comprises two or more division lines, and
the at least one division line comprises n division lines that divide the first film into n+1 regions.
3. The flexible display apparatus of claim 1 , wherein the at least one division line is at a position corresponding to the bending portion.
4. The flexible display apparatus of claim 1 , wherein the at least one division line comprises two or more division lines throughout the first film.
5. The flexible display apparatus of claim 1 , wherein the at least one division line comprises two or more division lines, and
an interval between the two or more division lines at a position corresponding to the bending portion is different from an interval between the two or more division lines at other positions.
6. The flexible display apparatus of claim 5 , wherein the interval between the two or more division lines at the position corresponding to the bending portion is less than the interval between the two or more division lines at the other positions.
7. The flexible display apparatus of claim 1 , wherein the first film further comprises a healing agent.
8. The flexible display apparatus of claim 7 , wherein, when the first film is torn, a healing material discharged from the healing agent is cross-linked to a material constituting the first film.
9. The flexible display apparatus of claim 1 , wherein the first film is a buffer film.
10. The flexible display apparatus of claim 9 , wherein the first film comprises an elastomer-based material.
11. The flexible display apparatus of claim 10 , wherein the first film comprises at least one selected from the group consisting of urethane, acrylate, and silicone.
12. The flexible display apparatus of claim 9 , wherein the first film comprises a plurality of air pores and has a foam density of about 0.3 g/cm3 to about 0.7 g/cm3.
13. The flexible display apparatus of claim 9 , wherein the first film has a thickness of about 50 μm to about 150 μm.
14. The flexible display apparatus of claim 1 , wherein the at least one division line comprises two or more division lines and an interval between the two or more division lines is in a range from about 10 μm to about 1 mm.
15. The flexible display apparatus of claim 1 , further comprising a third film under the first film,
wherein the second film is a light blocking film and the third film is a heat dissipation film.
16. The flexible display apparatus of claim 1 , wherein the at least one division line is formed from the first surface toward the second surface of the first film by a blanking process.