3D DISPLAY DEVICES

1 . A 3D display device, comprising:

a backlight system with a reflector disposed thereunder;

a reflective barrier disposed above the backlight system; and

a liquid crystal display (LCD) panel disposed above the backlight system.

2 . The 3D display device as claimed in claim 1 , wherein the reflective barrier is disposed between the liquid crystal display panel and the backlight system.

3 . The 3D display device as claimed in claim 1 , wherein the liquid crystal display panel is disposed between the reflective barrier and the backlight system.

4 . The 3D display device as claimed in claim 1 , wherein the reflective barrier comprises a plurality of protrusions.

5 . The 3D display device as claimed in claim 4 , wherein the protrusion comprises an anti-reflective layer and a reflective layer disposed thereon.

6 . The 3D display device as claimed in claim 1 , wherein the reflective barrier comprises a first polarizer, a switchable barrier panel and a second polarizer.

7 . The 3D display device as claimed in claim 6 , wherein the switchable barrier panel comprises a first substrate, a liquid crystal layer and a second substrate.

8 . The 3D display device as claimed in claim 7 , wherein the liquid crystal layer is divided into an on-state area and an off-state area in an alternate arrangement.

9 . The 3D display device as claimed in claim 8 , wherein liquid crystals are vertically arranged in the on-state area.

10 . The 3D display device as claimed in claim 7 , wherein the first substrate is disposed between the first polarizer and the liquid crystal layer, and the second

11 . The 3D display device as claimed in claim 9 , wherein the second substrate has a thickness less than a distance between the two on-state areas or two off-state areas.

12 . The 3D display device as claimed in claim 6 , wherein the second polarizer comprises a high-refractive-index polymer layer and a low-refractive-index polymer layer in an alternate arrangement.

13 . The 3D display device as claimed in claim 6 , wherein the first polarizer has a transmission axis substantially perpendicular to a transmission axis of the second polarizer.

14 . The 3D display device as claimed in claim 13 , wherein the second polarizer has a reflection axis substantially parallel to the transmission axis of the first polarizer.

15 . The 3D display device as claimed in claim 10 , further comprising a third polarizer disposed on the second polarizer.

16 . The 3D display device as claimed in claim 15 , wherein the second polarizer has a transmission axis substantially parallel to a transmission axis of the third polarizer.

17 . The 3D display device as claimed in claim 15 , wherein the third polarizer has an absorption axis substantially parallel to a reflection axis of the second polarizer.