Flexible substrate and display device including the flexible substrate

1. A flexible substrate for a display device, comprising:

a polymer resin provided as a supporter;

an inorganic fiber material randomly dispersed in the polymer resin; and

an antistatic agent comprising particles dispersed in the polymer resin;

the inorganic fiber material comprising a plurality of rod-shaped elements, each having a length longer than a thickness of the flexible substrate.

2. The flexible substrate of claim 1 , comprised of the rod-shaped elements of the inorganic fiber material each having a length ranging from about 50 to 500 μm.

3. The flexible substrate of claim 1 , comprised of the inorganic fiber material comprising glass fiber elements and a conductive layer coated on the surface of the glass fiber elements.

4. The flexible substrate of claim 1 , comprised of the inorganic fiber material being included in an amount ranging from about 20 to 40 wt % based on a total weight of the polymer resin, the inorganic fiber material, and the antistatic agent.

5. The flexible substrate of claim 1 , comprised of the antistatic agent comprising one of a conductive polymer, carbon black, a metal powder, a metal salt, and a combination thereof.

6. The flexible substrate of claim 1 , comprised of the antistatic agent being included in an amount ranging from about 2 to 10 wt % based on a total weight of the polymer resin, the inorganic fiber material, and the antistatic agent.

7. A flexible substrate for a display device, comprising:

a polymer resin provided as a supporter;

an inorganic fiber material randomly dispersed in the polymer resin; and

an antistatic agent comprising particles dispersed in the polymer resin;

the flexible substrate further comprising a first layer including the polymer resin, the inorganic fiber material and the antistatic agent, and a second layer disposed on at least one of a lower side and an upper side of the first layer and comprising an antistatic agent dispersed in a polymer resin.

8. The flexible substrate of claim 7 , comprised of the second layer being thinner than the first layer.

9. The flexible substrate of claim 1 , comprised of the polymer resin comprising polyimide.

10. A display device, comprising:

a flexible substrate including a polymer resin provided as a supporter, an inorganic fiber material randomly dispersed in the polymer resin, and an antistatic agent comprising particles dispersed in the polymer resin;

a thin film transistor disposed on the flexible substrate; and

a pixel electrode connected to the thin film transistor.

11. The display device of claim 10 , comprised of the inorganic fiber material comprising a plurality of rod-shaped elements, each having a length longer than a thickness of the flexible substrate.

12. The display device of claim 11 , comprised of the particles of the inorganic fiber material each having a length ranging from about 50 to 500 μm.

13. The display device of claim 10 , comprised of the inorganic fiber material comprising glass fiber elements and a conductive layer coated on the surface of the glass fiber elements.

14. The display device of claim 10 , comprised of the inorganic fiber material being included in an amount ranging from about 20 to 40 wt % based on a total weight of the polymer resin, the inorganic fiber material, and the antistatic agent.

15. The display device of claim 10 , comprised of the antistatic agent comprising one of a conductive polymer, carbon black, metal powder, metal salt, and a combination thereof.

16. The display device of claim 10 , comprised of the antistatic agent being included in an amount ranging from about 2 to 10 wt % based on a total weight of the polymer resin, the inorganic fiber material, and the antistatic agent.

17. The display device of claim 10 , comprised of the flexible substrate comprising a first layer including the polymer resin, the inorganic fiber material and the antistatic agent, and a second layer disposed on at least one of a lower side and an upper side of the first layer and comprising an antistatic agent dispersed in a polymer resin.

18. The display device of claim 10 , comprised of the polymer resin comprising polyimide.

19. The display device of claim 10 , further comprising a common electrode facing the pixel electrode, and an organic emission layer disposed between the pixel electrode and the common electrode.

20. A flexible substrate for a display device, comprising:

a polymer resin provided as a supporter;

an inorganic fiber material randomly dispersed in the polymer resin; and

an antistatic agent comprising particles dispersed in the polymer resin;

the flexible substrate further comprising a first layer including the polymer resin, the inorganic fiber material and the antistatic agent, a second layer disposed on a lower side of the first layer and including an antistatic agent dispersed in a polymer resin, and a third layer disposed on an upper side of the first layer and including an antistatic agent dispersed in a polymer resin.

21. The display device of claim 10 , comprised of the flexible substrate comprising a first layer including the polymer resin, the inorganic fiber material and the antistatic agent, a second layer disposed on a lower side of the first layer and including an antistatic agent dispersed in a polymer resin, and a third layer disposed on an upper side of the first layer and including an antistatic agent dispersed in a polymer resin.

22. The flexible substrate of claim 1 , comprised of the flexible substrate having a surface resistivity of less than 10 11 Ω.

23. The display device of claim 10 , comprised of the flexible substrate having a surface resistivity of less than 10 11 Ω.