OPTICAL FILM AND LIQUID CRYSTAL DISPLAY UTILIZING THE SAME

• US 20110051028A1
• Filed: 03/09/2010
• Published: 03/03/2011
• Est. Priority Date: 08/28/2009
• Status: Active Grant

• Current Assignee: InnoLux Corporation
• Original Assignee: Innocom Technology Limited, Innolux Display Corporation (InnoLux Corporation)
• Inventors: FANG, CHIEN-CHUNG, WU, WEN-HAO, JING, XIAO-HONG
• Granted Patent: US 8,269,917 B2
• Time in Patent Office: Days
• US Class Current: 349/56
• CPC Class Codes: G02B 5/045 Prism arrays
• CPC Class Codes: G02F 1/133504 Diffusing, scattering, diffracting elements associated to illuminating devices G02F1/133606
• CPC Class Codes: Y10T 428/2457 Parallel ribs and/or grooves

Abstract

An optical film includes an outer surface, a plurality of protrusions protruding from the outer surface and extending substantially parallel to a first axis, a plurality of grooves formed at neighboring protrusions; and two barrier members arranged at opposite sides of the optical film substantially parallel to a second axis. The first axis is substantially perpendicular to the second axis. The two barrier members prevent each slot from communicating with the exterior of the optical film continuously.

Claims

1. An optical film, comprising:

an outer surface;

a plurality of protrusions protruding from the outer surface and extending substantially parallel to a first axis;

a plurality of grooves formed between neighboring protrusions; and

two barrier members arranged at opposite sides of the optical film substantially parallel to a second axis, which is substantially perpendicular to the first axis; and

preventing each groove from communicating with the exterior.

2. The optical film of claim 1, wherein the barrier members are filled in and enclosing the opposite ends of each groove.

3. The optical film of claim 2, wherein the barrier members are integrally formed with the optical film.

4. The optical film of claim 3, wherein the barrier members are plastic material.

5. The optical film of claim 3, wherein the barrier members are printed material.

6. The optical film of claim 3, wherein the barrier members are coating material.

7. The optical film of claim 2, wherein the barrier members are adhered to the optical film.

8. The optical film of claim 7, wherein the barrier members are adhesive material.

9. The optical film of claim 1, wherein the barrier members are slots dividing the grooves of the optical film into three portions.

10. The optical film of claim 1, wherein each barrier member comprises an opening and a filling member filling parts thereof;

wherein the filling member substantially perpendicular to the first axis and the second axis is shorter than the protrusion.

11. A liquid crystal display, comprising:

a display board;

a first optical film; and

a second optical film arranged between the first optical film and the display board;

wherein the first optical film comprises;

an outer surface;

a plurality of protrusions protruding from the outer surface and extending substantially parallel to a first axis;

a plurality of grooves formed between neighboring protrusions; and

two barrier members arranged at opposite sides of the optical film substantially parallel to a second axis, which is substantially perpendicular to the first axis and preventing each slot from communicating with the exterior.

12. The liquid crystal display of claim 11, wherein the barrier members are filled in and enclosing the opposite ends of each groove.

13. The liquid crystal display of claim 12, wherein the barrier members are integrally formed with the optical film.

14. The liquid crystal display of claim 13, wherein the barrier members are plastic material.

15. The liquid crystal display of claim 13, wherein the barrier members are printed material.

16. The liquid crystal display of claim 13, wherein the barrier members are coating material.

17. The liquid crystal display of claim 12, wherein the barrier members are adhered to the optical film.

18. The liquid crystal display of claim 17, wherein the barrier members are adhesive material.

19. The liquid crystal display of claim 11, wherein the barrier members are slots dividing the grooves of the optical film into three portions.

20. The liquid crystal display of claim 11, wherein each barrier member comprises an opening and a filling member filling in parts thereof;

wherein the filling member substantially perpendicular to the first axis and the second axis is shorter than the protrusion.