Coating composition for low refractive layer including fluorine-containing compound, anti-reflection film using the same, polarizer and image display device including the same

• US 9,023,479 B2
• Filed: 11/01/2012
• Issued: 05/05/2015
• Est. Priority Date: 11/04/2011
• Status: Active Grant

• Current Assignee: SK Innovation Company Limited
• Original Assignee: SK Innovation Company Limited
• Inventors: Son, Sung Ho, Kim, Yun Bong, Jang, Won Seok, Cho, Yong Gyun
• Primary Examiner(s): Shosho, Callie
• Assistant Examiner(s): Nelson, Michael B
• Application Number:
  US13/666,234
• Publication Number:
  US 20130302623A1
• Time in Patent Office: 915 Days
• Field of Search: 556/400, 522/1, 428/400
• US Class Current: 428/411.1
• CPC Class Codes: C08F 230/085 the monomer being a polymerisable silane, e.g. (meth)acryloyloxy trialkoxy silanes or vinyl trialkoxysilanes
• CPC Class Codes: C09D 4/00 Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
• CPC Class Codes: G02B 1/04 made of organic materials, e.g. plastics G02B1/08 takes precedence
• CPC Class Codes: G02B 1/111 using layers comprising organic materials
• CPC Class Codes: Y10T 428/31504 Composite [nonstructural laminate]
• CPC Class Codes: Y10T 428/3154 Of fluorinated addition polymer from unsaturated monomers
• CPC Class Codes: Y10T 428/31544 Addition polymer is perhalogenated
• CPC Class Codes: Y10T 428/31612 As silicone, silane or siloxane
• CPC Class Codes: Y10T 428/31663 As siloxane, silicone or silane

Abstract

Provided are a coating composition for low refractive layer including fluorine-containing compound of the following Chemical Formula 1, an anti-reflection film using the same, and a polarizer and an image display device including the same, wherein the fluorine-containing compound of the following Chemical Formula 1 has a low refractive index of 1.28 to 1.40, thereby making it possible to easily adjust a refractive index of the anti-reflection film and be usefully used as a coating material of the anti-reflection film having an excellent mechanical property such as durability, or the like.

Claims

1. A coating composition for a low refractive layer including a fluorine-containing compound represented by Chemical Formula 1

2. The coating composition for a low refractive layer of claim 1, wherein the fluorine-containing compound of Chemical Formula 1 is contained in a content of 1 to 50 weight % of an entire solid content of the coating composition for a low refractive layer.

3. The coating composition for a low refractive layer of claim 1, wherein the coating composition includes the fluorine-containing compound of Chemical Formula 1, a compound having an acrylic unsaturated group, a low refractive index particle, a photo-initiator, and a solvent.

4. The coating composition for a low refractive layer of claim 3, wherein the compound having an acrylic unsaturated group is contained in a content of 5 to 40 weight % of an entire solid content of the coating composition for a low refractive layer.

5. The coating composition for a low refractive layer of claim 1, wherein the fluorine-containing compound of Chemical Formula 1 has a refractive index of 1.28 to 1.40.

6. The coating composition for a low refractive layer of claim 1, wherein the fluorine-containing compound of Chemical Formula 1 is selected from:

7. The coating composition for a low refractive layer of claim 1, wherein the low refractive layer has a refractive index of 1.28 to 1.4.

8. An anti-reflection film comprising a low refractive layer made of the coating composition for a low refractive layer of claim 1.

9. The anti-reflection film of claim 8, wherein the anti-reflection film includes the low refractive layer coated on a transparent substrate.

10. The anti-reflection film of claim 8, wherein the anti-reflection film includes a hard coat layer and the low refractive layer sequentially coated on a transparent substrate.

11. A polarizer comprising the anti-reflection film of claim 8.

12. An image display device comprising the polarizer of claim 11 formed on a top surface thereof.