Flexible display apparatus and method of manufacturing the same
A flexible display apparatus including: a first film including a first surface and a second surface that are opposite each other, and a first groove formed in the first surface, the first film having a first rigidity; a third film on the second surface of the first film; a fourth film facing the third film; an emission display unit between and encapsulated by the third film and the fourth film; and a second film on the fourth film and facing the first film, the second film having a second rigidity that is less than the first rigidity.
1. A flexible display apparatus comprising:
a first film including a first region and a second region separated from the first region by a first opening or groove of the first film, the first opening or groove being disposed in the first film;
a third film over the first film;
a fourth film over the third film;
an emission display unit between the third film and the fourth film; and
an adhesion layer between the first film and the third film;
wherein a width of the first opening or groove of the first film is at least two times greater than a thickness of the first film, and a surface of the adhesion layer between the third film and the first film is exposed by the first opening or groove.
2. The flexible display apparatus of claim 1 , wherein the third film comprises a plastic material.
3. The flexible display apparatus of claim 1 , wherein the fourth film comprises a multi-layer.
4. The flexible display apparatus of claim 3 , wherein the multi-layer comprises at least one inorganic film.
5. The flexible display apparatus of claim 1 , wherein the fourth film is configured to encapsulate the emission display unit.
6. The flexible display apparatus of claim 1 , further comprising a barrier film between the third film and the emission display unit.
7. The flexible display apparatus of claim 1 , further comprising a device/wiring layer between the third film and the emission display unit.
8. The flexible display apparatus of claim 7 , further comprising a barrier film between the third film and the device/wiring layer.
9. The flexible display apparatus of claim 1 , further comprising a second film on the fourth film.
10. A method of manufacturing a flexible display apparatus, the method comprising:
forming a third film on a supporting substrate;
forming an emission display unit on the third film;
forming a fourth film on the emission display unit;
forming a second film having a second rigidity over the fourth film;
separating the supporting substrate from the third film; and
forming a first film on a surface of the third film opposite to another surface of the third film on which the emission display unit is formed,
wherein the first film has a first rigidity greater than the second rigidity and comprises a second surface adjacent to the third film, and a first surface that is opposite to the second surface and has a first opening or groove,
wherein the emission display unit comprises a pixel electrode on the third film, an organic emission layer on the pixel electrode, and an opposite electrode on the organic emission layer,
wherein the fourth film is on the opposite electrode,
wherein a width of the first opening or groove is at least two times greater than a thickness of the first film, and
wherein an adhesion layer is further formed between the first film and the third film, and a surface of the adhesion layer is exposed by the first opening or groove.
11. The method of claim 10 , wherein the first film is divided by the first opening or groove into a first region and a second region, and a portion of the third film is exposed at a region corresponding to the first opening or groove.
12. The method of claim 11 , wherein the fourth film is formed on the organic emission layer.
13. The method of claim 12 , wherein the fourth film is formed as a multi-layer.
14. The method of claim 13 , wherein the multi-layer comprises at least one inorganic film.
15. The method of claim 11 , wherein the first opening or groove is positioned at a bending portion of the second film, the third film, and the fourth film.
16. The method of claim 15 , wherein a neutral portion in which a tensile stress and a compressive stress are not incurred by a force when the force is applied to the bending portion exists between the first film and the second film.
17. The method of claim 15 , wherein the second film, the third film and the fourth film are bent by at least 90 degrees at the bending portion.
18. The method of claim 17 , wherein a neutral portion in which a tensile stress and a compressive stress are not incurred by a force when the force is applied to the bending portion exists between the first film and the second film.
19. A flexible display apparatus comprising:
a first film including a first region and a second region separated from the first region by a first opening or groove of the first film, the first opening or groove being disposed in the first film;
a third film over the first film;
a fourth film over the third film;
an emission display unit between the third film and the fourth film; and
an adhesion layer disposed between the first film and the third film;
wherein a width of the first opening or groove of the first film is at least two times greater than a thickness of the first film, a surface of the adhesion layer between the third film and the first film is exposed by the first opening or groove, and a depth of the first opening or groove is equal to the thickness of the first film.
20. A flexible display apparatus comprising:
a first film including a first region and a second region separated from the first region by a first opening or groove of the first film, the first opening or groove being disposed in the first film;
a third film over the first film;
a fourth film over the third film;
an emission display unit between the third film and the fourth film; and
an adhesion layer between the first film and the third film;
wherein a width of the first opening or groove of the first film is at least two times greater than a thickness of the first film, and a surface of the third film between the emission display unit and the adhesion layer is exposed by the first opening or groove.
21. The flexible display apparatus of claim 20 , wherein the third film comprises a plastic material.
22. The flexible display apparatus of claim 20 , wherein the fourth film comprises a multi-layer.
23. The flexible display apparatus of claim 22 , wherein the multi-layer comprises at least one inorganic film.
24. The flexible display apparatus of claim 20 , wherein the fourth film is configured to encapsulate the emission display unit.
25. The flexible display apparatus of claim 20 , further comprising a barrier film between the third film and the emission display unit.
26. The flexible display apparatus of claim 20 , further comprising a device/wiring layer between the third film and the emission display unit.
27. The flexible display apparatus of claim 26 , further comprising a barrier film between the third film and the device/wiring layer.
28. The flexible display apparatus of claim 20 , further comprising a second film on the fourth film.
29. A flexible display apparatus comprising:
a first film including a first region and a second region separated from the first region by a first opening or groove of the first film, the first opening or groove being disposed in the first film;
a third film over the first film;
a fourth film over the third film;
an emission display unit between the third film and the fourth film; and
an adhesion layer disposed between the first film and the third film,
wherein a width of the first opening or groove of the first film is at least two times greater than a thickness of the first film, a surface of the third film between the emission display unit and the adhesion layer is exposed by the first opening or groove, and a depth of the first opening or groove is equal to the thickness of the first film.
30. A method of manufacturing a flexible display apparatus, the method comprising:
forming a third film on a supporting substrate;
forming an emission display unit on the third film;
forming a fourth film on the emission display unit;
forming a second film having a second rigidity over the fourth film;
separating the supporting substrate from the third film; and
forming a first film on a surface of the third film opposite to another surface of the third film on which the emission display unit is formed,
wherein the first film has a first rigidity greater than the second rigidity and comprises a first opening or groove,
wherein the emission display unit comprises a pixel electrode on the third film, an organic emission layer on the pixel electrode, and an opposite electrode on the organic emission layer,
wherein the fourth film is on the opposite electrode,
wherein a width of the first opening or groove is at least two times greater than a thickness of the first film, and
wherein an adhesion layer is further formed between the first film and the third film, and a surface of the third film between the fourth film and the adhesion layer is exposed by the first opening or groove.