Optical film, antireflection film, polarizing plate, display apparatus and method for manufacturing optical film

Abstract

An optical film, which comprises: a transparent support; and at least one layer of functional layer formed from a coating composition, wherein the at least one layer of functional layer is formed by curing the coating composition by a heat energy and a light energy.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is one exemplary example of a cross sectional view of an optical film (antireflection film) of the present invention;

FIG. 2 is one exemplary example of another cross sectional view of the optical film (antireflection film) of the invention;

FIG. 3 is one exemplary example of a still other cross sectional view of the optical film (antireflection film) of the invention;

FIG. 4 is one exemplary example of a cross sectional view of an optical film (antireflection film) having an antiglare hard-coat layer of the invention; and

FIG. 5 is one exemplary example of another cross sectional view of an optical film (antireflection film) having an antiglare hard coat layer of the invention.

Claims

1. An optical film, which comprises: a transparent support; andat least one layer of functional layer formed from a coating composition,wherein the at least one layer of functional layer is formed by curing the coating composition by a heat energy and a light energy.

2. The optical film according to claim 1, wherein the at least one layer of functional layer is formed by a plurality of cycles of sequential or simultaneous application with the heat energy and the light energy.

3. The optical film according to claim 1, wherein the coating composition comprises a heat curable material and a light curable material.

4. The optical film according to claim 1, wherein the coating composition comprises a compound including a heat curable moiety and a light curable moiety in the same molecule.

5. The optical film according to claim 1, wherein the at least one layer of functional layer includes a layer in contact with a surface of the transparent support.

6. The optical film according to claim 1, wherein the at least one layer of functional layer includes at least one of a low refractive index layer and a hard coat layer.

7. The optical film according to claim 1, wherein the at least one layer of functional layer is at least two layers of functional layers.

8. An antireflection film, which comprises: an optical film according to claim 1; andan antireflection layer.

9. A polarizing plate, which comprises: a pair of protective films; anda polarizing film between the pair of protective films,wherein at least one of the pair of protective films is an optical film according to claim 1.

10. A display apparatus, which comprises: an antireflection film according to claim 8,wherein the antireflection film comprises a low refractive index layer that is disposed so as to be on a viewing side.

11. A method for manufacturing an optical film comprising a transparent support and at least one layer of functional layer, the method comprising: coating and drying a coating composition; andcuring the coating composition by a heat energy and a light energy so as to form the at least one layer of functional layer.

12. The manufacturing method according to claim 11, wherein the heat energy and the light energy are applied plural times sequentially or simultaneously.

13. The manufacturing method according to claim 11, wherein the coating composition comprises a heat curable material and a light curable material.

14. The manufacturing method according to claim 11, wherein the coating composition comprises a compound including a heat curable moiety and a light curable moiety in the same molecule.

15. The manufacturing method according to claim 11, wherein the at least one layer of functional layer includes a layer in contact with a surface of the transparent support.

16. The manufacturing method according to claim 11, wherein the at least one layer of functional layer includes at least one of a low refractive index layer and a hard coat layer.

17. The manufacturing method according to claim 11, wherein the at least one layer of functional layer is at least two layers of functional layers.

18. The manufacturing method according to claim 11, wherein the at least two layers of functional layers include a hard coat layer and an antireflection layer.