Protective film, electronic device having same, and method for attaching protection film
An electronic device includes a flexible display module, a window on the flexible display module, and a protective base film on the window, and having a first modulus at a first temperature and a second modulus lower than the first modulus at a second temperature 80° C. higher than the first temperature, wherein the difference between the first modulus and the second modulus may be no greater than about 985 MPa.
1. An electronic device comprising:
a flexible display module;
a window on the flexible display module; and
a protective base film on the window, and having a first modulus at a first temperature and a second modulus lower than the first modulus at a second temperature that is about 80° C. higher than the first temperature,
wherein a difference between the first modulus and the second modulus is 985 MPa or less.
2. The electronic device of claim 1 , wherein the first temperature is about minus 20° C., and the second temperature is about 60° C.
3. The electronic device of claim 1 , wherein the first modulus is 1,000 MPa or less.
4. The electronic device of claim 1 , wherein the second modulus is 15 MPa or more.
5. The electronic device of claim 1 , further comprising a functional layer on the protective base film.
6. The electronic device of claim 5 , wherein a thickness of the functional layer is no greater than about one tenth of a thickness of the protective base film.
7. The electronic device of claim 1 , wherein a thickness of the protective base film is about 30 μm or more to about 300 μm or less.
8. The electronic device of claim 1 , further comprising an adhesive layer between the window and the protective base film.
9. The electronic device of claim 1 , wherein the flexible display module is a foldable display module.
10. The electronic device of claim 1 , wherein the flexible display module comprises:
a display panel;
a sensing unit on the display panel; and
a reflection prevention layer on the sensing unit.