Anti-glare film, method for producing same, and use of same
An anti-glare film is prepared which have a ratio R/V of a scattered specular reflection intensity R to a total V of scattered reflection intensity being from 0.01 to 0.12 and an absolute value of a chromaticity b* of transmitted light being 3 or less. The anti-glare film includes a transparent substrate layer, and an anti-glare layer formed on at least one surface of the transparent substrate layer. The anti-glare layer may be a cured product of a curable composition including one or more types of a polymer component and one or more types of a curable resin precursor component, and in particular, at least two components selected from a polymer component and a curable resin precursor component can be phase separated through liquid phase spinodal decomposition. This anti-glare film can achieve non-coloring properties and anti-glare properties in a compatible manner.
1. An anti-glare film having a ratio R/V of a scattered specular reflection intensity R to a total V of scattered reflection intensity being from 0.01 to 0.08, a haze being 50 to 98%, a 60° gloss being 0.2 to 10% and an absolute value of a chromaticity b* of transmitted light being 3 or less, wherein
the scattered specular reflection intensity R is a scattered reflection intensity measured by a goniophotometer at an opening angle of 1 degree in a scattered reflection direction when visible light is projected at a surface of the anti-glare film, being a measurement target, at an angle of 45 degrees from a normal line, and
the total V of scattered reflection intensity is a total of scattered reflection intensity measured by a goniophotometer at an opening angle of 1 degree at each degree from −45 degrees to +45 degrees, including 0 degrees, with respect to the scattered reflection direction when visible light is projected at the surface of the anti-glare film, being the measurement target, at an angle of 45 degrees from a normal line.
2. The anti-glare film according to claim 1 , comprising:
a transparent substrate layer; and
an anti-glare layer formed on at least one surface of the transparent substrate layer, wherein
the anti-glare layer is a cured product of a curable composition comprising one or more types of a polymer component and one or more types of a curable resin precursor component.
3. The anti-glare film according to claim 2 , wherein
at least two components selected from the polymer component and the curable resin precursor component are able to be phase separated through liquid phase spinodal decomposition.
4. The anti-glare film according to claim 2 , wherein
the polymer component comprises a (meth)acrylic polymer optionally having a cellulose ester and/or a polymerizable group.
5. The anti-glare film according to claim 2 , wherein
the cured resin precursor component comprises at least one type selected from polyfunctional (meth)acrylate, epoxy (meth)acrylate, polyester (meth)acrylate, urethane (meth)acrylate, and silicone (meth)acrylate.
6. The anti-glare film according to claim 2 , wherein
the curable resin precursor component comprises a silica nanoparticle and/or a fluorine atom.
7. A method for producing the anti-glare film described in claim 1 , comprising:
curing a curable composition by heat or an active energy ray.
8. The method for producing the anti-glare film according to claim 7 , further comprising:
phase separating, through liquid phase spinodal decomposition, at least two components selected from a polymer component and a curable resin precursor component by applying a curable composition comprising one or more types of polymer components and one or more types of curable resin precursor components on a support and drying, wherein
in the curing, a phase separated curable composition is cured by heat or an active energy ray.
9. A display device comprising the anti-glare film described in claim 1 .
10. The display device according to claim 9 , wherein the display device is an organic EL display or a liquid crystal display.
11. A method of increasing anti-glare properties and transparency of an anti-glare film, comprising:
adjusting a ratio R/V of a scattered specular reflection intensity R to a total V of scattered reflection intensity being in a range from 0.01 to 0.08, adjusting a haze being in a range of 50 to 98%, a 60° gloss being in a range from 0.2 to 10% and adjusting an absolute value of a chromaticity b* of transmitted light being in a range 3 or less, wherein
the scattered specular reflection intensity R is a scattered reflection intensity measured by a goniophotometer at an opening angle of 1 degree in a scattered reflection direction when visible light is projected at a surface of the anti-glare film, being a measurement target, at an angle of 45 degrees from a normal line, and
the total V of scattered reflection intensity is a total of scattered reflection intensity measured by a goniophotometer at an opening angle of 1 degree at each degree from −45 degrees to +45 degrees, including 0 degrees, with respect to the scattered reflection direction when visible light is projected at the surface of the anti-glare film, being the measurement target, at an angle of 45 degrees from a normal line.
12. The anti-glare film according to claim 3 , wherein
the polymer component comprises a (meth)acrylic polymer optionally having a cellulose ester and/or a polymerizable group.
13. The anti-glare film according to claim 3 , wherein
the cured resin precursor component comprises at least one type selected from polyfunctional (meth)acrylate, epoxy (meth)acrylate, polyester (meth)acrylate, urethane (meth)acrylate, and silicone (meth)acrylate.
14. The anti-glare film according to claim 4 , wherein
the cured resin precursor component comprises at least one type selected from polyfunctional (meth)acrylate, epoxy (meth)acrylate, polyester (meth)acrylate, urethane (meth)acrylate, and silicone (meth)acrylate.
15. The anti-glare film according to claim 3 , wherein
the curable resin precursor component comprises a silica nanoparticle and/or a fluorine atom.
16. The anti-glare film according to claim 4 , wherein
the curable resin precursor component comprises a silica nanoparticle and/or a fluorine atom.
17. The anti-glare film according to claim 5 , wherein
the curable resin precursor component comprises a silica nanoparticle and/or a fluorine atom.
18. A display device comprising the anti-glare film described in claim 2 .
19. A display device comprising the anti-glare film described in claim 3 .
20. A display device comprising the anti-glare film described in claim 4 .