Anti-reflective film, polarizing plate, and display apparatus
Provided are an anti-reflective film including a low-refractive layer having mechanical properties such as high abrasion resistance and scratch resistance, etc., and excellent optical properties, and a hard coating layer, a polarizing plate including the same, and a display device including the same.
1. An anti-reflective film comprising:
a hard coating layer; and
a low-refractive layer including an organic polymer resin and two or more kinds of hollow inorganic particles dispersed in the organic polymer resin and having different particle sizes,
wherein the two or more kinds of hollow inorganic particles having different particle sizes include a first hollow inorganic particles having a particle size of 35 nm to 61 nm and a second hollow inorganic particles having a particle size of 64 nm to 100 nm,
wherein the organic polymer resin included in the low-refractive layer includes a cross-linked (co)polymer between a (co)polymer of a photopolymerizable compound and a fluorine-containing compound including a photoreactive functional group,
wherein the (co)polymer of the photopolymerizable compound includes a copolymer of multifunctional (meth)acrylate-based monomers including a di- to tetra-functional (meth)acrylate-based monomer and a penta- to hexa-functional (meth)acrylate-based monomer,
wherein a weight ratio of the di- to tetra-functional (meth)acrylate-based monomer and the penta- to hexa-functional (meth)acrylate-based monomer is 9:1 to 6:4, and
wherein the anti-reflective film exhibits one or more peaks at a scattering vector (q max ) of 0.128 nm −1 to 0.209 nm −1 in a graph showing a log value of a scattering intensity to a scattering vector defined in small-angle X-ray scattering.
2. The anti-reflective film of claim 1 ,
wherein the small-angle X-ray scattering is measured by irradiating X-rays of a wavelength of 0.63 Å to 1.54 Å to an anti-reflective film with a size of 1 cm*1 cm (width*length) at a distance of 4 m.
3. The anti-reflective film of claim 1 , wherein the scattering vector is defined by Equation 1:
q= 4π sin θ/λ [Equation 1]
wherein, in Equation 1, q is a scattering vector, θ is a ½ value of a scattering angle, and λ is a wavelength of irradiated X-rays.
4. The anti-reflective film of claim 1 ,
wherein the first hollow inorganic particles and the second hollow inorganic particles have a particle size ratio of 1:1.05 to 2.85.
5. The anti-reflective film of claim 1 ,
wherein a weight ratio of the first hollow inorganic particles and the second hollow inorganic particles is 7:3 to 3:7.
6. The anti-reflective film of claim 1 ,
wherein the low-refractive layer includes 30 parts by weight to 500 parts by weight of the two or more kinds of the hollow inorganic particles having different particle sizes, based on 100 parts by weight of the (co)polymer of the photopolymerizable compound.
7. The anti-reflective film of claim 1 ,
wherein the organic polymer resin includes 1 to 300 parts by weight of the fluorine-containing compound including the photoreactive functional group, based on 100 parts by weight of the (co)polymer of the photopolymerizable compound.
8. The anti-reflective film of claim 1 ,
further comprising a light transmissive substrate having a thickness-direction retardation (Rth) of 3000 nm or more, as measured at a wavelength of 400 nm to 800 nm.
9. A polarizing plate comprising the anti-reflective film of claim 1 and a polarizing film.
10. A display device comprising the anti-reflective film of claim 1 .
11. The anti-reflective film of claim 1 ,
wherein the hard coating layer includes a binder resin including a photocurable resin and organic or inorganic fine particles dispersed in the binder resin.
12. The anti-reflective film of claim 1 ,
wherein the hard coating layer includes an organic polymer resin of a photocurable resin and an antistatic agent dispersed in the organic polymer resin.