Display device having protective film
A display device includes a flexible display panel and a protective film. The protective film includes a film main body and a first adhesion portion. The film main body has a first surface contacting the flexible display panel and a first recess portion recessed from the first surface, and the first adhesion portion is in the first recess portion.
1. A display device comprising:
a flexible display panel comprising:
a flexible substrate having a first surface and a second surface opposite to the first surface; and
an organic light emitting element over the first surface of the flexible substrate; and
a protective film comprising:
a film main body having a first surface contacting the second surface of the flexible substrate and a first recess portion recessed from the first surface of the film main body; and
a first adhesion portion in the first recess portion and contacting the second surface of the flexible substrate.
2. The display device of claim 1 , wherein the first adhesion portion is between the flexible display panel and the film main body.
3. The display device of claim 2 , wherein the first adhesion portion is bonded with the film main body and the flexible display panel.
4. The display device of claim 1 , wherein the first adhesion portion has a smaller Young's modulus than that of the film main body.
5. The display device of claim 1 , wherein the film main body has a plurality of the first recess portions, and
wherein the plurality of first recess portions are spaced from each other in a first direction on the first surface of the film main body.
6. The display device of claim 5 , wherein the flexible display panel and the protective film are bent in the first direction.
7. The display device of claim 5 , wherein each of the plurality of first recess portions extends in a second direction that crosses the first direction.
8. The display device of claim 1 , wherein the first surface of the film main body is not bonded with the flexible display panel.
9. The display device of claim 1 , wherein the film main body has a second surface opposite the first surface and a second recess portion recessed from the second surface of the film main body,
wherein the protective film further comprises a second adhesion portion in the second recess portion.
10. The display device of claim 9 , wherein the second adhesion portion has a smaller Young's modulus than that of the film main body.
11. The display device of claim 9 , wherein the film main body has a plurality of the second recess portions, and
wherein the plurality of second recess portions are spaced from each other in a first direction on the second surface of the film main body.
12. The display device of claim 11 , wherein each of the plurality of second recess portions extends in a second direction that crosses the first direction.
13. The display device of claim 9 , wherein the second recess portion partially overlaps the first recess portion in a thickness direction of the film main body.
14. The display device of claim 9 , wherein a cross-section of at least one of the first recess portion and the second recess portion has a triangular shape, a quadrangular shape, a hexagonal shape, a polygonal shape, a circular shape, or an oval shape.
15. The display device of claim 1 , wherein a thickness of the protective film is greater than a thickness of the flexible display panel.
16. The display device of claim 1 , further comprising:
a polarizer on the protective film with the flexible display panel between the polarizer and the protective film; and
a window on the polarizer.
17. The display device of claim 16 , further comprising:
a first adhesion layer between the flexible display panel and the polarizer; and
a second adhesion layer between the polarizer and the window.
18. The display device of claim 1 , wherein the flexible display panel further comprises a thin film layer on the flexible substrate, and
wherein the organic light emitting element is between the flexible substrate and the thin film layer.