POLARIZATION FILM

• US 20120194909A1
• Filed: 04/16/2012
• Published: 08/02/2012
• Est. Priority Date: 04/09/2008
• Status: Active Grant

• Current Assignee: Sung Hun Song
• Original Assignee: Sung Hun Song
• Inventors: SONG, Sung Hun
• Granted Patent: US 8,692,958 B2
• Time in Patent Office: Days
• US Class Current: 359/492.01
• CPC Class Codes: G02B 5/3016 involving passive liquid crystal elements optical properties of liquid crystals G02F1/0063; polarising elements associated with active liquid crystal devices G02F1/133528

Abstract

A polarization film comprising at least a polarization layer that is subject to a laminating treatment to be stretched along a predetermined laminating direction in the plane of the polarization layer to realize polarization, and an adhesive layer that is provided on a surface of the polarization layer and capable of being affixed onto a base. The adhesive layer has a maximal shrinkage resistance in the laminating direction of the polarization layer

Claims

1. A polarization film comprising:

at least a polarization layer that is subject to a laminating treatment to be stretched along a predetermined laminating direction in the plane of the polarization layer to realize polarization, and

an adhesive layer that is provided on a surface of the polarization layer and capable of being affixed onto a base, the adhesive layer having a maximal shrinkage resistance in the laminating direction of the polarization layer.

2. The polarization film of claim 1, wherein the adhesive layer has a minimal shrink resistance in a direction perpendicular to the laminating direction of the polarization layer in the plane of the polarization layer.

3. The polarization film of claim 1, wherein the adhesive layer comprises a plurality of adhesive regions and a plurality of non-adhesive regions, and the adhesive regions and the non-adhesive regions are arranged alternatively along the laminating direction of the polarization layer.

4. The polarization film of claim 3, wherein the non-adhesive regions are elongated holes extending along a direction perpendicular to the laminating direction of the polarization layer.

5. The polarization film of claim 4, wherein the length of the elongated holes decreases gradually along the laminating direction of the polarization layer.

6. The polarization film of claim 3, wherein the non-adhesive regions are hole groups that are aligned along a direction perpendicular to the laminating direction of the polarization layer.

7. The polarization film of claim 6, wherein the number of the holes in the hole groups decreases gradually along the laminating direction of the polarization layer, and the alternating times for the adhesive regions and the non-adhesive regions decrease gradually along the direction perpendicular to the laminating direction of the polarization layer.

8. The polarization film of claim 1, further comprising a surface treatment layer, a first support layer, and a second support layer, wherein the polarization layer is interposed between the first support layer and the second support layer.

9. A polarization film for a liquid crystal display (LCD) panel comprising at least an adhesive layer that is capable of being affixed onto the LCD panel and a polarization layer subject to a laminating treatment along a predetermined laminating direction,

wherein the adhesive layer comprises a plurality of adhesive regions and a plurality of non-adhesive regions, and the adhesive regions and the non-adhesive regions are arranged along the laminating direction alternatively.

10. The polarization film for a LCD panel of claim 9, wherein the non-adhesive regions are elongated holes extending along a direction perpendicular to the laminating direction.

11. The polarization film for a LCD panel of claim 10, wherein the length of the elongated holes decreases along the laminating direction of the polarization layer.

12. The polarization film for a LCD panel of claim 9, wherein the non-adhesive regions are hole groups that are arranged along a direction perpendicular to the laminating direction.

13. The polarization film for a LCD panel of claim 12, wherein the number of the holes in the hole groups decreases gradually along the laminating direction of the polarization layer, and the alternating times for the adhesive regions and the non-adhesive regions decrease along the direction perpendicular to the laminating direction of the polarization layer.

14. The polarization film for a LCD panel of claim 9, further comprising a surface treatment layer, a first support layer, and a second support layer, wherein the polarization layer is interposed between the first support layer and the second support layer.