IP Library Granted Patent US 6,960,387
Granted Patent B2
US 6,960,387 · App. 10/176,683 · Granted Nov 1, 2005

Optical film

Assignee: Asahi Glass Company, Limited
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Quick Facts
Patent No.
US 6,960,387
App. No.
10/176,683
Granted
Nov 1, 2005
Kind
B2
Abstract

An optical film which comprises a transparent resin layer ( 1 ) made of a photo-curable resin having a self-healing property, an antireflection layer ( 2 ) present on one side of the transparent resin layer ( 1 ), and a color tone correcting layer ( 3 ) containing a colorant which has a color tone correcting property, present on the other side of the transparent resin layer ( 1 ) opposite from the antireflection layer ( 2 ).

Claims (26)

1. An optical film which comprises a transparent resin layer ( 1 ) made of a cured photo-curable resin having a self-healing property, an antireflection layer ( 2 ) present on one side of the transparent resin layer ( 1 ), and a color tone correcting layer ( 3 ) containing a colorant which has a color tone correcting property, present on the other side of the transparent resin layer ( 1 ) opposite from the antireflection layer (2),

wherein the cured photocurable resin comprises polymerized units of a urethaneacrylate and the antireflection layer has a thickness of 10 to 500 nm.

2. The optical film according to claim 1 , wherein the antireflection layer ( 2 ) is made of a non-crystalline fluoropolymer.

3. The optical film according to claim 2 , wherein the color tone correcting layer ( 3 ) further contains a colorant which has a near infrared ray absorption property.

4. The optical film according to claim 2 , wherein the non-crystalline fluoropolymer is a polymer having a fluorine-containing alicyclic structure.

5. The optical film according to claim 1 , wherein the color tone correcting layer ( 3 ) further contains a colorant which has a near infrared ray absorption property.

6. The optical film according to claim 3 , wherein the non-crystalline fluoropolymer is a polymer having a fluorine-containing alicyclic structure.

7. An optical film which comprises a transparent resin layer ( 1 ) made of a cured photo-curable resin having a self-healing property, an antireflection layer ( 2 ) present on one side of the transparent resin layer ( 1 ), and a color tone correcting layer ( 3 ) containing a colorant which has a color tone correcting property, present on the other side of the transparent resin layer ( 1 ) opposite from the antireflection layer ( 2 ), wherein an interlayer having a refractive index higher than that of the transparent resin layer ( 1 ), is present between the transparent resin layer ( 1 ) and the antireflection layer ( 2 ),

wherein the cured photocurable resin comprises polymerized units of a urethaneacrylate and the antireflection layer has a thickness of 10 to 500 nm.

8. The optical film according to claim 7 , wherein the antireflection layer ( 2 ) is made of a non-crystalline fluoropolymer.

9. The optical film according to claim 8 , wherein the color tone correcting layer ( 3 ) further contains a colorant which has a near infrared ray absorption property.

10. The optical film according to claim 8 , wherein the non-crystalline fluoropolymer is a polymer having a fluorine-containing alicyclic structure.

11. The optical film according to claim 7 , wherein the color tone correcting layer ( 3 ) further contains a colorant which has a near infrared ray absorption property.

12. The optical film according to claim 9 , wherein the non-crystalline fluoropolymer is a polymer having a fluorine-containing alicyclic structure.

13. A process for producing an optical film comprising a color tone correcting layer ( 3 ), a transparent substrate, a transparent resin layer having a thickness of 10-500 nm ( 1 ) and an antireflection layer ( 2 ), which comprises

laminating, on one side of the transparent substrate, the transparent resin layer ( 1 ) made of a cured photo-curable resin comprising polymerized units of a urethane acrylate and having a self-healing property, and the antireflection layer ( 2 ), in this order, and

forming the color tone correcting layer ( 3 ) containing a colorant which has a color tone correcting property, on the other side of the transparent substrate.

14. The process for producing an optical film according to claim 13 , wherein the antireflection layer ( 2 ) is made of a non-crystalline fluoropolymer.

15. The process for producing an optical film according to claim 13 , wherein the color tone correcting layer ( 3 ) further contains a colorant which has a near infrared ray absorption property.

16. The process for producing an optical film according to claim 14 , wherein the color tone correcting layer ( 3 ) further contains a colorant which has a near infrared ray absorption property.

17. A process for producing an optical film comprising a color tone correcting layer ( 3 ), a transparent substrate, a transparent resin layer having a thickness of 10-500 nm ( 1 ), an antireflection layer ( 2 ) and an interlayer present between the transparent resin layer ( 1 ) and the antireflection layer ( 2 ), which comprises

laminating, on one side of the transparent substrate, the transparent resin layer ( 1 ) made of a cured photo-curable resin comprising polymerized units of a urethane acrylate and having a self-healing property, the interlayer having a refractive index higher than the refractive index of the transparent resin layer ( 1 ), and the antireflection layer ( 2 ), in this order, and

forming the color tone correcting layer ( 3 ) containing a colorant which has a color tone correcting property, on the other side of the transparent substrate.

18. The process for producing an optical film according to claim 17 , wherein the antireflection layer ( 2 ) is made of a non-crystalline fluoropolymer.

19. The process for producing an optical film according to claim 17 , wherein the color tone correcting layer ( 3 ) further contains a colorant which has a near infrared ray absorption property.

20. The process for producing an optical film according to claim 18 , wherein the color tone correcting layer ( 3 ) further contains a colorant which has a near infrared ray absorption property.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 24, 2002
From: SUZUKI, KATSUMI; KAWASATO, FUMIKO; MORIWAKI, KEN
To: ASAHI GLASS COMPANY, LIMITED
Reel/Frame 013329/0517 →
Priority Claims (1)
JP 2001-191632 · Jun 25, 2001 · national
Continuity (1)
Related Publication 20030086159A1 · May 8, 2003