Optical film and display device having the same
An optical film and a display device having the same are disclosed. The display device comprises a display panel including a plurality of subpixels and an optical film disposed at one side of the display panel, the optical film includes a base film and a plurality of prisms, wherein a bias angle between a long axis direction of the subpixels and a longitudinal direction of the prisms is substantially 2 to 88 degrees.
1. A display device, comprising:
a display panel including a plurality of subpixels; and
an optical film disposed at one side of the display panel, the optical film including:
a base film; and
a plurality of prisms,
wherein a bias angle between a long axis direction of the subpixels and a longitudinal direction of the prisms is substantially 2 to 88 degrees.
2. The display device of claim 1 , wherein the bias angle is substantially 2 to 40 degrees.
3. The display device of claim 1 , wherein the bias angle is substantially 50 to 88 degrees.
4. The display device of claim 1 , wherein the peak heights of the prisms vary along the longitudinal direction of the prisms.
5. The display device of claim 4 , wherein the peak heights of the prisms randomly vary along the longitudinal direction of the prisms.
6. The display device of claim 4 , wherein the peak heights of the prisms periodically vary along the longitudinal direction of the prisms.
7. The display device of claim 1 , wherein the average difference of the peak heights of the prisms is substantially 1 μm to 20 μm.
8. The display device of claim 1 , wherein the pitch between the peaks of the prisms is substantially 20 μm to 300 μm.
9. The display device of claim 1 , wherein the average wavelength of the peaks of the prisms is substantially 100 μm to 500 μm.
10. The display device of claim 1 , further comprising a protection layer disposed on one surface of the optical film,
wherein the protection layer comprises a plurality of beads and the diameters of the plurality of beads are substantially 1 μm to 10 μm.
11. The display device of claim 1 , wherein the average horizontal amplitudes of the peaks of the prisms randomly vary.
12. The display device of claim 11 , wherein the average amplitudes of the peaks of the prisms are substantially 1 μm to 20 μm.
13. An optical film, comprising:
a base film having a side edge; and
a plurality of prisms disposed on the base film,
wherein a bias angle between the side edge and a longitudinal direction of the prisms is substantially 2 to 88 degrees.
14. The optical film of claim 13 , wherein the bias angle is substantially 2 to 40 degrees.
15. The optical film of claim 13 , wherein the bias angle is substantially 50 to 88 degrees.
16. The optical film of claim 13 , wherein the peak heights of the prisms vary along the longitudinal direction of the prisms.
17. The optical film of claim 16 , wherein the peak heights of the prisms randomly vary along the longitudinal direction of the prisms.
18. The optical film of claim 16 , wherein the peak heights of the prisms periodically vary along the longitudinal direction of the prisms.
19. The optical film of claim 13 , wherein the average difference of the peak heights of the prisms is substantially 1 μm to 20 μm.
20. The optical film of claim 13 , wherein the pitch between the peaks of the prisms is substantially 20 μm to 300 μm.
21. The optical film of claim 13 , wherein the average wavelength of the peaks of the prisms is substantially 100 μm to 500 μm.
22. The optical film of claim 13 , further comprising a protection layer disposed on one surface of the optical film,
wherein the protection layer comprises a plurality of beads and the diameters of the plurality of beads are substantially 1 μm to 10 μm.
23. The optical film of claim 13 , wherein the average horizontal amplitudes of the peaks of the prisms randomly vary.
24. The optical film of claim 23 , wherein the average amplitudes of the peaks of the prisms are substantially 1 μm to 20 μm.