High haze anti-glare film and high haze anti-glare anti-reflective film

Abstract

The present invention relates to a high haze anti-glare film and a high haze anti-glare anti-reflection film. The high haze anti-glare film comprises a transparent substrate and an anti-glare coating formed on the transparent substrate, wherein the anti-glare coating comprises an acrylic binder resin, a plurality of amorphous silica microparticles, and a plurality of spherical organic microparticles, wherein the spherical organic microparticles are monodispersed and have an average particle size smaller than that of the amorphous silica microparticles. The high haze anti-glare film of the present invention has a total haze (Ht) greater than 40%, wherein the total haze (Ht) is the sum of a surface haze (Hs) of the high haze anti-glare film and an internal haze (Hi) of the high haze anti-glare film, and the internal haze (Hi) and the total haze (Ht) satisfy the following relationship: 0.25 < Hi / Ht < 0.75. The high haze anti-glare film of the present invention has high anti-glare property and light flicker resistance.

Description

TECHNICAL FIELD

[0001] The present application relates to a high haze anti-glare film for image display devices, in particular, an anti-glare film with anti-sparkle property. BACKGROUND

[0002] Currently, image display devices such as liquid crystal display (LCD) and organic light emitting diode display (OLED) are affected by the image display quality due to the glare caused by the external light incident on the display surface. In particular, in high-pixel density (e.g., greater than 100 PPI) high-resolution displays, an anti-glare film is used on the display surface to reduce the glare and image sparkle caused by the reflection of external light on the display surface. Known technologies suggest using particle dispersion on a transparent substrate to form an anti-glare film with a concave-convex structure surface to solve the glare problem. However, the concave-convex structure surface is formed by spherical microparticles to form a hemispherical convex surface. This structure causes the pixel light source generated from the panel to have a zooming effect due to the lens effect, resulting in sparkle. In known technologies, reducing the particle size of the spherical microparticles reduces the zooming degree of the lens effect, which can improve the sparkle degree, but it is easy to cause insufficient anti-glare property. Increasing the particle size of the spherical microparticles can improve the anti-glare property, but it will increase the zooming degree of the lens effect, which will increase the sparkle degree. It has also been suggested to significantly increase the internal haze of the anti-glare layer to reduce the sparkle degree by making the pixel light source pass through the internal scattering of the anti-glare coating. However, when the anti-glare layer increases the content of spherical microparticles to provide internal haze, it will also increase the surface haze and the number of hemispherical protrusions of the anti-glare layer, thereby increasing the lens effect and increasing the sparkle degree. To avoid the lens effect caused by the increase of particles on the surface, the thickness of the anti-glare layer needs to be increased to reduce the surface haze, but this method also causes insufficient anti-glare property.

[0003] Therefore, the present application proposes a high haze anti-glare film with anti-sparkle property, which can improve the anti-glare property to no glare and effectively avoid the sparkle caused by the lens effect. It is especially suitable for high-pixel density (e.g., greater than 100 PPI) displays that require reduced sparkle. SUMMARY

[0004] One embodiment of the present application provides a high haze anti-glare film with high anti-glare property and anti-sparkle property on high-pixel density (e.g., greater than 100 PPI) displays.

[0005] The high haze anti-glare film of the present invention comprises a transparent substrate and an anti-glare coating layer formed on the transparent substrate, wherein the anti-glare coating layer comprises an acrylic binder resin, a plurality of amorphous silica microparticles and a plurality of spherical organic microparticles, wherein the spherical organic microparticles are monodispersed and have an average particle size smaller than that of the amorphous silica microparticles, the high haze anti-glare film has a total haze (Ht) greater than 40%, wherein the total haze (Ht) is the sum of the surface haze (Hs) of the high haze anti-glare film and the internal haze (Hi) of the high haze anti-glare film, and the internal haze (Hi) and the total haze (Ht) satisfy the relationship: 0.25 < Hi / Ht < 0.75.

[0006] The high haze anti-glare film of the present invention comprises a transparent substrate and an anti-glare coating layer formed on the transparent substrate, wherein the anti-glare coating layer comprises an acrylic binder resin and a plurality of amorphous silica microparticles and a plurality of spherical organic microparticles, wherein the spherical organic microparticles are monodispersed and have an average particle size smaller than that of the amorphous silica microparticles, wherein the amorphous silica microparticles form a concave-convex surface having a plurality of irregular protrusions on the surface of the anti-glare coating layer, and the arithmetic mean deviation (Ra) of the line roughness of the concave-convex surface is between 0.2 μm and 1.0 μm and the average width (RSm) is between 4 μm and 20 μm, wherein Ra and RSm satisfy the relationship: 2.0 < (Ra x 100) / RSm < 18, and the inclination angle (root mean square slope, RΔq) of the irregular protrusions is between 15° and 50°.

[0007] In the high haze anti-glare film of the present invention, the laser method average particle size of the amorphous silica microparticles in the anti-glare coating layer is between 3.0 μm and 10 μm, preferably between 3.0 μm and 8 μm, and the BET specific surface area is between 60 m 2 / g and 100 m 2 / g. In the high haze anti-glare film of the present invention, the use amount of the amorphous silica microparticles relative to 100 parts by weight of the acrylic binder resin is between 6 parts by weight and 25 parts by weight, preferably between 7 parts by weight and 20 parts by weight.

[0008] In the high haze anti-glare film of the present invention, the spherical organic microparticles in the anti-glare coating layer are monodispersed and have an average particle size smaller than that of the amorphous silica microparticles, the use amount thereof relative to 100 parts by weight of the acrylic binder resin is between 6 parts by weight and 40 parts by weight, preferably between 10 parts by weight and 38 parts by weight, and the parts by weight ratio of the use amount of the organic microparticles to that of the amorphous silica microparticles is not less than 0.3 and not more than 5, preferably not less than 0.5 and not more than 4.5.

[0009] In the high haze anti-glare film of the present application, the thickness of the anti-glare coating is between 2.0 μm and 10 μm.

[0010] Yet another embodiment of the present application provides a high haze anti-glare anti-reflection film.

[0011] The high haze anti-glare anti-reflection film of the present application is a high haze anti-glare film in which a low refractive layer is formed on the anti-glare coating to provide an anti-reflection function and to increase the transmittance, thereby increasing the contrast in a dark room, wherein the 5-degree average reflectance of the high haze anti-glare anti-reflection film is not greater than 0.15% and both the SCI (Specular Component Include) diffuse and specular average reflectance and the SCE (Specular Component Exclude) diffuse average reflectance are not greater than 2.5%.

[0012] The high haze anti-glare anti-reflection film of the present application is a high haze anti-glare film in which a low refractive layer is formed on the anti-glare coating, the refractive index of the low refractive layer being not greater than 1.4. The low refractive layer of the high haze anti-glare anti-reflection film of the present application comprises a binder resin, a plurality of hollow silica nanoparticles, and a leveling agent comprising a (meth)acryl-modified organosilicon compound having a perfluoropolyether functional group, wherein the binder resin can be a (meth)acrylic resin or a fluorine- and acrylate-modified polysiloxane resin.

[0013] The high haze anti-glare anti-reflection film of the present application provides a hydrophobic surface, the water contact angle of the surface being greater than 90°, and preferably greater than 95°.

[0014] The above summary of the application is intended to provide a simplified abstract of the disclosure to acquaint the reader with the general nature of the present disclosure. The above summary is not intended to be a complete overview of the disclosure, and is not intended to limit the important / essential elements of the embodiments of the present application or to define the scope of the present application. After reading the following detailed description of the embodiments of the present application, those skilled in the art who have the ordinary knowledge will easily understand the basic spirit of the present application and the technical means and embodiments employed by the present application. DETAILED DESCRIPTION

[0015] In order to make the description of the present disclosure more detailed and complete, the following describes the embodiments and specific examples of the present application in an illustrative manner; however, this is not the only form of implementing or using the embodiments of the present application. The embodiments disclosed below can be combined with each other or replaced by each other in a beneficial manner, and other embodiments can be added to the embodiments without further description or illustration.

[0016] The advantages, features and technical methods achieved by the present application will be described in more detail and more easily understood with reference to exemplary embodiments, and the present application can be implemented in different forms, so it should not be understood as being limited to the embodiments described herein. Rather, the embodiments provided will make the present disclosure more thorough and complete, and will convey the scope of the present application to those skilled in the art, and the present application will be defined only by the appended claims.

[0017] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs, and such terms as used herein should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an overly idealized or formal manner unless clearly defined otherwise herein.

[0018] In this context, in the line roughness parameters, the arithmetic mean deviation (Ra) represents the arithmetic mean of the absolute values of the ordinate Z(x) over a sampling length. The maximum height (Rz) represents the sum of the maximum profile peak height Zp and the maximum profile valley depth Zv over a sampling length. The average width (RSm) represents the average value of the profile element width Xs over a sampling length. The root mean square slope (RΔq) represents the root mean square value of the ordinate slope dz / dx over a sampling length. In the surface roughness parameters, the root mean square height (Sq) represents the root mean square value of Z(x,y) over a defined area. The arithmetic mean height (Sa) represents the arithmetic mean of the absolute values of the ordinate Z(x,y) over a defined area. The maximum height (Sz) represents the sum of the maximum peak height Sp and the maximum valley depth Sv. The root mean square gradient (SΔq) represents the average magnitude of the local gradient (slope) of the surface.

[0019] Furthermore, in this context, the term "(meth)acrylate" refers to both methacrylate and acrylate.

[0020] The present application provides a high haze anti-glare film with total haze not less than 40%, which comprises a transparent substrate and an anti-glare coating formed on the transparent substrate, wherein the anti-glare coating comprises an acrylic binder resin, a plurality of amorphous silica particles and a plurality of spherical organic particles, wherein the spherical organic particles are monodispersed and the average particle size is smaller than that of the amorphous silica particles. In the anti-glare coating of the high haze anti-glare film of the present application, the amorphous silica particles form a concave-convex surface on the surface of the anti-glare coating. The irregular shape of the amorphous silica particles forms irregular protrusions on the surface of the anti-glare coating, which can effectively avoid the lens effect of the surface and reduce the degree of light flicker. Since the average particle size of the spherical organic particles is smaller than that of the amorphous silica particles, the spherical organic particles are not easy to protrude from the surface of the anti-glare coating, which can increase the internal haze to increase internal scattering, so that the internal light source is not easy to directly irradiate to the surface of the anti-glare coating, thus achieving high anti-glare property and low light flicker property

[0021] The high haze anti-glare film of the present application comprises a transparent substrate and an anti-glare coating formed on the transparent substrate, wherein the anti-glare coating comprises an acrylic binder resin, a plurality of amorphous silica particles and a plurality of spherical organic particles, wherein the high haze anti-glare film has a total haze (Ht) greater than 40%, the total haze (Ht) is the sum of the surface haze (Hs) of the high haze anti-glare film and the internal haze (Hi) of the high haze anti-glare film, and the internal haze (Hi) and the total haze (Ht) satisfy the relationship 0.25 < Hi / Ht < 0.75; and preferably satisfy the relationship 0.30 < Hi / Ht < 0.70.

[0022] The high haze anti-glare film of the present application comprises a transparent substrate and an anti-glare coating formed on the transparent substrate, wherein the anti-glare coating comprises an acrylic binder resin, a plurality of amorphous silica particles and a plurality of spherical organic particles, wherein the spherical organic particles are monodispersed and the average particle size is smaller than that of the amorphous silica particles, wherein the amorphous silica particles form a concave-convex surface with a plurality of irregular protrusions on the surface of the anti-glare coating, the arithmetic average deviation (Ra) of the line roughness of the concave-convex surface of the anti-glare coating is between 0.2 μm and 1.0 μm, preferably between 0.3 μm and 0.8 μm, and the average width (RSm) is between 4 μm and 20 μm, preferably between 5 μm and 18 μm, wherein Ra and RSm satisfy the relationship 2.0 < (Ra x 100) / RSm < 18, and the inclination angle (root mean square slope, RΔq) of the irregular protrusions is between 15° and 50°.

[0023] The anti-glare coating of the high haze anti-glare film of the present application employs the amorphous silica particles and the spherical organic particles having an average particle size smaller than the amorphous silica particles. Since the particle size of the spherical organic particles is smaller than the average particle size of the amorphous silica particles, the spherical organic particles are less likely to protrude from the surface of the anti-glare layer. Therefore, the profile unit average width of the surface roughness of the concave-convex surface formed on the surface of the anti-glare coating is small and the inclination angle of the roughness curve is large, and the irregular pattern of the protrusions on the surface of the anti-glare coating is presented. Thus, the lens effect of the rough surface can be effectively avoided to facilitate the anti-glare film's anti-flickering property.

[0024] In a preferred embodiment of the high haze anti-glare film of the present application, the high haze anti-glare film comprises a transparent substrate and an anti-glare coating formed on the transparent substrate, wherein the anti-glare coating comprises an acrylic binder resin, a plurality of amorphous silica particles and a plurality of spherical organic particles, wherein the spherical organic particles are monodispersed and have an average particle size smaller than the average particle size of the amorphous silica particles, wherein the amorphous silica particles form a concave-convex surface having a plurality of irregular protrusions on the surface of the anti-glare coating, the arithmetic average deviation (Ra) of the linear roughness of the concave-convex surface is preferably between 0.3 μm and 0.8 μm, and the average width (RSm) is preferably between 5 μm and 18 μm, wherein Ra and RSm preferably satisfy the relationship: 2.5 < (Ra x 100) / RSm < 15, and the inclination angle (root mean square slope, RΔq) of the concave-convex shape is preferably between 20° and 45°.

[0025] In an embodiment of the present application, the suitable transparent substrate can be a film material having good mechanical strength and light transmittance, which can be, but is not limited to, a resin film material of polymethyl methacrylate (PMMA), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polycarbonate (PC), triacetyl cellulose (TAC), polyimide (PI), polyethylene (PE), polypropylene (PP), polyvinyl alcohol (PVA), polyvinyl chloride (PVC), or cycloolefin copolymer (COC), etc.

[0026] In a preferred embodiment of the present application, the transparent substrate preferably has a light transmittance of more than 80%, and more preferably has a light transmittance of more than 90%. In a preferred embodiment of the present application, the suitable substrate thickness is between about 10 micrometers (μm) and 500 micrometers (μm), preferably between 15 micrometers (μm) and 250 micrometers (μm), and more preferably between 20 micrometers (μm) and 100 micrometers (μm).

[0027] In the high haze anti-glare film of the present application, the thickness of the anti-glare coating on the transparent substrate is between 2.0 μm and 10 μm, and more preferably between 3.0 μm and 8 μm.

[0028] In the high haze anti-glare film of the present application, the laser mean particle size of the amorphous silica particles contained in the anti-glare coating is between 3.0 μm and 10 μm, preferably between 3.0 μm and 8 μm, and the BET specific surface area is between 60 m 2 / g and 100 m 2 / g, preferably between 65 m 2 / g and 90 m 2 / g.

[0029] In the high haze anti-glare optical film of the present application, the use amount of the amorphous silica particles is between 6 parts by weight and 25 parts by weight, preferably between 7 parts by weight and 20 parts by weight, per 100 parts by weight of the acrylic binder resin.

[0030] In the high haze anti-glare film of the present application, the spherical organic particles in the anti-glare coating are monodispersed and have an average particle size smaller than that of the amorphous silica particles, i.e. if amorphous silica particles having an average particle size of 4.0 μm are used, organic particles having an average particle size of not more than 4.0 μm, such as spherical organic particles having an average particle size of 2.0 μm or 3.0 μm, can be used. The spherical organic particles suitable for use in the present application have a laser mean particle size between 2.0 μm and 8.0 μm. In the anti-glare coating, the use amount of the spherical organic particles is between 6 parts by weight and 40 parts by weight, preferably between 10 parts by weight and 38 parts by weight, per 100 parts by weight of the acrylic binder resin. The spherical organic particles in the anti-glare coating can provide light scattering inside the coating to provide the internal haze of the anti-glare coating to avoid the direct projection of the light from the internal light source of the display to the surface of the anti-glare film to cause the lens effect and affect the image visibility of the display.

[0031] The organic particles suitable for use in the anti-glare coating of the present application can be polymethyl methacrylate resin particles, polystyrene resin particles, styrene-methyl methacrylate copolymer particles, polyethylene resin particles, melamine particles, epoxy resin particles, polysiloxane resin particles, polyvinylidene fluoride resin or polyfluoroethylene resin particles. The refractive index of the suitable organic particles is between 1.40 and 1.70.

[0032] In the anti-glare coating of the present application, the total amount of the organic microparticles and the amorphous silica microparticles used in the acrylic binder resin is between 15 parts by weight and 50 parts by weight, and preferably between 20 parts by weight and 48 parts by weight, per 100 parts by weight of the acrylic binder resin. Also, the parts by weight ratio of the amount of the organic microparticles and the amorphous silica microparticles used is not less than 0.3 and not more than 5, and preferably not less than 0.5 and not more than 4.5.

[0033] The concave-convex surface of the anti-glare coating of the high-haze anti-glare film of the present application has a maximum height (Rz) of linear roughness between 3 μm and 15 μm, an arithmetic mean height (Sa) of surface roughness between 0.30 μm and 1.00 μm, a maximum height (Sz) between 8 μm and 15 μm, and a root mean square gradient (SΔq) between 0.30° and 1.5°.

[0034] The anti-glare coating surface of the high-haze anti-glare film of the present application has excellent wear resistance, and the haze changes little after wear, providing good durability.

[0035] In the high-haze anti-glare film of the present application, the acrylic binder resin used in the anti-glare coating comprises a (meth)acrylate composition and a starter, wherein the (meth)acrylate composition in the acrylic binder resin comprises 35 to 50 parts by weight of a polyurethane (meth)acrylate oligomer having a functionality of 6 to 15, 12 to 20 parts by weight of a (meth)acrylate monomer having a functionality of 3 to 6, and 1.5 to 12 parts by weight of a (meth)acrylate monomer having a functionality of less than 3.

[0036] In a preferred embodiment of the present application, the polyurethane (meth)acrylate oligomer having a functionality of 6 to 15 is preferably an aliphatic polyurethane (meth)acrylate oligomer having a molecular weight of between 1,500 and 4,500.

[0037] In a preferred embodiment of the present application, the (meth)acrylate monomer having a functionality of 3 to 6 is a (meth)acrylate monomer having a molecular weight of less than 800. The (meth)acrylate monomer having a functionality of 3 to 6 suitable for use in the present application preferably uses one or a combination of pentaerythritol triacrylate (PETA), dipentaerythritol hexaacrylate (DPHA), and dipentaerythritol pentaacrylate (DPPA), but is not limited thereto.

[0038] In a preferred embodiment of the present application, the (meth)acrylate monomer having a functionality of less than 3 can be a (meth)acrylate monomer having a functionality of 1 or 2, which has a molecular weight of less than 500. The (meth)acrylate monomer having a functionality of less than 3 can preferably use one or a combination of 1,6-hexanediol diacrylate (HDDA), cyclotrihexanemethylpropane formal acrylate (CTFA), 2-phenoxyethyl acrylate (PHEA), or isobornyl acrylate (IBOA), but is not limited thereto.

[0039] In the present application, the initiator suitable for the present acrylic binder resin can be used without particular limitation as long as it is widely known in the art, and for example, a phenylacetone-based initiator, a diphenyl ketone-based initiator, a benzopropyl ketone-based initiator, a benzoyl-based initiator, a difunctional α-hydroxy ketone-based initiator, or an acylphosphine oxide-based initiator, etc. can be used. The aforementioned initiators can be used alone or in combination.

[0040] A leveling agent can be further added to the anti-glare coating layer of the high haze anti-glare film of the present application to provide a good coating or flatness. A leveling agent having re-coatability can be selectively added to the anti-glare coating layer of the high haze anti-glare film of the present application to facilitate coating of other optical functional layers on the film surface of the high haze anti-glare film. A fluorine-based, (meth)acrylate-based, or silicone-based leveling agent can be used in the anti-glare coating layer of the high haze anti-glare film of the present application.

[0041] Other optical functional layers can be selectively coated on the film surface of the high haze anti-glare film of the present application, for example, a low refractive index layer can be coated to provide anti-reflection properties.

[0042] The high haze anti-glare anti-reflection film of another embodiment of the present application is a high haze anti-glare anti-reflection film in which a low refractive index layer is further formed on the anti-glare coating layer of the high haze anti-glare film to provide anti-reflection properties and improve the transmittance, thereby improving the dark room contrast, in which the 5-degree angle average reflectance of the high haze anti-glare anti-reflection film is not greater than 0.15%, and both the SCI (Specular Component Include) diffuse and specular average reflectance and the SCE (Specular Component Exclude) diffuse average reflectance are not greater than 2.5%.

[0043] The low refractive layer of the high haze anti-glare anti-reflection film of the present application includes a binder resin, a plurality of hollow silica nanoparticles, and a leveling agent including a (meth)acryl-modified organosilicon compound having a perfluoropolyether functional group, and the refractive index of the low refractive layer is not greater than 1.4.

[0044] In one embodiment of the high haze anti-glare anti-reflection film of the present application, the average particle diameter of the hollow silica nanoparticles used in the low refractive layer is between 50 nm and 100 nm, preferably between 50 nm and 80 nm.

[0045] In one embodiment of the high haze anti-glare anti-reflection film of the present application, the binder resin can be a (meth)acrylic resin or a polysiloxane resin modified with fluorine and acrylate.

[0046] In one embodiment of the high haze anti-glare anti-reflection film of the present application, the (meth)acrylic resin that can be used in the low refractive layer can be at least one of pentaerythritol tri(meth)acrylate, dipentaerythritol hexa(meth)acrylate, pentaerythritol tetra(meth)acrylate, dipentaerythritol penta(meth)acrylate, trimethylolpropane tri(meth)acrylate, ditrimethylolpropane tetra(meth)acrylate, dipentaerythritol tetra(meth)acrylate, or a combination thereof. When a (meth)acrylic resin is used as the binder resin of the low refractive layer, the amount of hollow silica nanoparticles used in the low refractive layer is between 60 parts by weight and 130 parts by weight, and preferably between 80 parts by weight and 110 parts by weight, per 100 parts by weight of the aforementioned (meth)acrylic resin.

[0047] In one embodiment of the high haze anti-glare anti-reflection film of the present application, the fluorine and acrylate modified polysiloxane resin that can be used in the low refractive layer is a polysiloxane resin having a siloxane backbone, a branched chain containing a fluoroalkyl group, and a branched chain containing an acrylate functional group, with a number average molecular weight (Mn) of less than 10,000, a fluorine content of between 1% and 15%, a refractive index of between 1.43 and 1.49, and a fluorine to silicon ratio of between 0.05 and 1.00. Suitable fluorine and acrylate modified polysiloxane resins include, but are not limited to, commercially available siloxane resins such as X-12-2430C (available from Shin-Etsu Chemical, Japan). When a fluorine and acrylate modified polysiloxane resin is used as the binder resin for the low refractive layer, a fluorinated polyurethane oligomer can optionally also be included. Suitable fluorinated polyurethane oligomers have a functionality of between 2 and 6, a number average molecular weight (Mn) of between 1,000 and 20,000, a refractive index of between 1.30 and 1.45, a viscosity of less than 10,000 cps at 25°C, and a fluorine content of between 20% and 60%. Suitable fluorine and acrylate modified fluorinated polyurethane oligomers include, but are not limited to, commercially available LR6000, LR2000 (available from Miwon, Korea). In the high haze anti-glare anti-reflection film of the present application, when a fluorine and acrylate modified polysiloxane resin is used as the binder resin for the anti-reflection film, the hollow silica nanoparticles used in the low refractive layer are used in an amount of between 90 parts by weight and 350 parts by weight, and preferably between 100 parts by weight and 300 parts by weight, per 100 parts by weight of the fluorine and acrylate modified polysiloxane resin.

[0048] In one embodiment of the high haze anti-glare anti-reflection film of the present application, the low refractive layer includes a leveling agent. The leveling agent includes a (meth)acryl-modified silicone compound having a perfluoropolyether functional group, with a number average molecular weight (Mn) of between 1,500 and 16,000. Suitable (meth)acryl-modified silicone compounds having a perfluoropolyether functional group for the leveling agent include, but are not limited to, commercially available X-71-1203E, KY-1203, KY-1211, or KY-1207 (available from Shin-Etsu Chemical, Japan).

[0049] The amount of the leveling agent used in the low-refractive layer of the high-haze anti-glare anti-reflection film of the present application varies depending on the type of the binder resin used. When a (meth)acrylic resin is used as the binder resin of the low-refractive layer, the amount of the leveling agent used is between 5 parts by weight and 20 parts by weight, preferably between 9 parts by weight and 17 parts by weight, per 100 parts by weight of the (meth)acrylic resin. When a fluorine and acrylate-modified polysiloxane resin is used as the binder resin of the low-refractive layer, the amount of the leveling agent used in the low-refractive layer is between 1 part by weight and 45 parts by weight, preferably between 2 parts by weight and 30 parts by weight, per 100 parts by weight of the fluorine and acrylate-modified polysiloxane resin.

[0050] The initiator used in the low-refractive layer of the high-haze anti-glare anti-reflection film of the present application is, for example, but not limited to, a commercially available product such as Esacure KIP-160, Esacure One, Omnirad 184, Omnirad 907, Omnirad TPO available from IGM Resins B.V. of the Netherlands, TR-PPI-ONE available from Stronger New Material Co., Ltd. of Hong Kong, China, and the like.

[0051] The low-refractive layer of the high-haze anti-glare anti-reflection film of the present application can provide the anti-reflection function of the high-haze anti-glare film and improve the transmittance to improve the contrast in a dark room, while maintaining the original anti-glare property and flicker resistance, and can provide surface scratch resistance and proper stain resistance.

[0052] Another object of the present application is to provide a method for preparing a high-haze anti-glare film. The method for preparing the anti-glare film of the present application comprises uniformly mixing a polyurethane (meth)acrylate oligomer having a functionality of between 6 and 15, at least one (meth)acrylate monomer having a functionality of between 3 and 6, at least one (meth)acrylate monomer having a functionality of less than 3, and an initiator in a proper solvent to form an acrylic binder resin solution; uniformly mixing a plurality of amorphous silica microparticles, a plurality of spherical organic microparticles, a leveling agent, and an organic solvent in the acrylic binder resin solution to form an anti-glare solution; coating the anti-glare solution on a transparent substrate; drying the transparent substrate coated with the anti-glare solution; and forming an anti-glare coating layer on the transparent substrate by radiation or electron beam curing to obtain a high-haze anti-glare film.

[0053] The solvent used in the aforementioned preparation method of the anti-glare film of the present application can be an organic solvent widely used in this technical field, such as ketones, aliphatic or cycloaliphatic hydrocarbons, aromatic hydrocarbons, ethers, esters, or alcohols, etc. One or more than one organic solvent can be used in the acrylate composition and the anti-glare solution, and the applicable solvent can be, for example, acetone, butanone, cyclohexanone, methyl isobutyl ketone, hexane, cyclohexane, dichloromethane, dichloroethane, toluene, xylene, propylene glycol methyl ether, methyl acetate, ethyl acetate, propyl acetate, butyl acetate, isopropyl alcohol, n-butyl alcohol, isobutyl alcohol, cyclohexanol, diacetone alcohol, propylene glycol methyl ether acetate, or tetrahydrofuran, etc., or the like, but not limited thereto.

[0054] In other embodiments of the present application, additives such as antistatic agents, colorants, flame retardants, ultraviolet absorbers, antioxidants, surface modifiers, antibacterial agents, hydrophobic modified silica nanoparticles, or defoaming agents, etc. can also be added to the prepared anti-glare solution as needed to provide different functional properties.

[0055] The aforementioned method of coating the anti-glare solution can employ, for example, a roll coating method, a blade coating method, a dip coating method, a roller coating method, a spin coating method, a spray coating method, a slit coating method, or the like, which are widely used in this technical field.

[0056] The high-haze anti-glare film of the present application can further form a low-refractive layer on the anti-glare coating to provide anti-reflection function and improve the transmittance, so as to improve the darkroom contrast, but still maintain the original anti-glare property and anti-flicker property.

[0057] Another object of the present application is to provide a preparation method of a high-haze anti-glare anti-reflection film, which comprises uniformly mixing a binder resin, a plurality of hollow silica nanoparticles, a starter, a leveling agent, and a suitable solvent to form a low-refractive layer solution; coating the low-refractive layer solution on the anti-glare coating of a high-haze anti-glare film, drying to remove the solvent, and then performing radiation curing or electron beam curing to form a low-refractive layer on the anti-glare layer of the high-haze anti-glare film, so as to obtain a high-haze anti-glare anti-reflection film.

[0058] The aforementioned solvent used in the preparation method of the low-refractive layer of the present application can be the same as that used in the preparation of the anti-glare coating. In other embodiments of the present application, additives such as antistatic agents, colorants, flame retardants, ultraviolet absorbers, antioxidants, surface modifiers, antibacterial agents, hydrophobic modified silica nanoparticles, or defoaming agents, etc. can also be added to the prepared low-refractive layer solution as needed to provide different functional properties. The method of coating the low-refractive layer solution can employ, for example, a roll coating method, a blade coating method, a dip coating method, a roller coating method, a spin coating method, a spray coating method, a slit coating method, or the like, which are widely used in this technical field.

[0059] The following examples are intended to further illustrate the application and are not intended to limit the scope of the application.

[0060] Example

[0061] Preparation Example 1: Preparation of Acrylic Adhesive Resin I

[0062] After mixing and stirring 42 parts by weight of a polyurethane acrylate oligomer (functionality 6, molecular weight about 2,600, viscosity about 70,000 cps (25°C), purchased from Miwon Specialty Chemical Co., Ltd, Korea), 4.5 parts by weight of pentaerythritol triacrylate (PETA), 12 parts by weight of dipentaerythritol hexaacrylate (DPHA), 3 parts by weight of isobornyl acrylate (IBOA), 4 parts by weight of a photoinitiator (Chemcure-481, purchased from Hengqiao Industry, Taiwan), 24.5 parts by weight of ethyl acetate (EAC), and 10 parts by weight of n-butyl acetate (nBAC) for 1 hour, acrylic adhesive resin I was formed.

[0063] Preparation Example 2: Preparation of Acrylic Adhesive Resin II

[0064] After mixing and stirring 42 parts by weight of a polyurethane acrylate oligomer (functionality 6, molecular weight about 1,600, viscosity about 36,000 cps (25°C), purchased from IGM, Taiwan), 4.5 parts by weight of pentaerythritol triacrylate (PETA), 12 parts by weight of dipentaerythritol hexaacrylate (DPHA), 3 parts by weight of cyclo-trihydroxymethyl propane formal acrylate (CTFA), 4 parts by weight of a photoinitiator (Chemcure-481, purchased from Hengqiao Industry, Taiwan), 24.5 parts by weight of ethyl acetate (EAC), and 10 parts by weight of n-butyl acetate (nBAC) for 1 hour, acrylic adhesive resin II was formed.

[0065] Example 1: Preparation of High-Haze Anti-glare Film

[0066] After mixing and stirring 200 parts by weight of acrylic adhesive resin I, 16.5 parts by weight of amorphous silica microparticles (Aerosil® SS-50B, average particle size 4 μm, BET specific surface area 80 m Aerosil® SS-50B, average particle size 4 μm, BET specific surface area 80 m 2parts by weight of a polyether-modified polydimethylsiloxane leveling agent (BYK-333, solid content: 10%, solvent: n-butyl acetate, available from BYK, Germany), 65 parts by weight of ethyl acetate (EAC), and 160 parts by weight of n-butyl acetate (nBAC), and mixed and stirred to uniformly disperse, thereby forming an antiglare layer solution. This antiglare layer solution was applied to a 60-μm triacetylcellulose (TAC) substrate, dried, and then photo-cured under nitrogen at 300 mJ / cm2of UV light to form an antiglare coating layer having a thickness of 6.7 μm on the TAC substrate, thereby completing the preparation of the high-haze antiglare film. 2 The radiation dose of the UV light was 300 mJ / cm2.

[0067] The high-haze antiglare film obtained in Example 1 was subjected to the following optical and physical property analyses, and the results are shown in Tables 1 to 3.

[0068] Measurement of haze: The haze was evaluated using an NDH-2000 (Nippon Denshoku Corp.) according to the description in JIS K7136.

[0069] Measurement of internal and surface haze: A 40-μm TAC film (T40UZ, available from Fuji Film) was attached to the surface of the antiglare film using a transparent optical adhesive, thereby making the concave-convex surface of the antiglare film flat. In this state, the internal haze value was obtained by evaluating the haze using an NDH-2000 (Nippon Denshoku Corp.) according to the description in JIS K7136. Then, the surface haze value was obtained by subtracting the internal haze value from the total haze value.

[0070] Measurement of transmittance: The transmittance was evaluated using an NDH-2000 (Nippon Denshoku Corp.) according to the description in JIS K7361.

[0071] Measurement of gloss: The antiglare film was attached to a black acrylic plate using a transparent optical adhesive, and the gloss was measured using a BYK micro-gloss gloss meter according to the description in JIS Z 8741, and the 20-, 60-, and 85-degree angle gloss values were selected.

[0072] Measurement of clarity: The antiglare film was cut into 5 x 8 cm 2Size was measured using a SUGA ICM-IT image sharpness meter according to the description of JIS K7374, and the values ​​of the 0.125mm, 0.25mm, 0.50mm, 1.00mm and 2.00mm slit measurements were summed.

[0073] Pencil Hardness Measurement: The pencil hardness of the anti-glare film surface was measured based on the description in JIS K 5400. An automatic pencil hardness tester (instrument model 553-M, manufactured by Yasuda Seiki Seisakusho) was used to apply a 500g load. A Mitsubishi hardness pencil marked "JITakatsu" was used, moving the pencil at a speed of 1mm / s. Five pencil hardness measurements were performed on the anti-glare film. If two or more scratches were found, the hardness was deemed unsatisfactory. The maximum hardness that passed the test was recorded.

[0074] Abrasion resistance measurement: 500g / cm load 2 Using Bon Star#0000 steel wool, the anti-glare film was rubbed 10 times at 60 rpm. The number of scratches on the surface was counted, and the abrasion resistance was evaluated according to the following levels.

[0075] No scratches: Extremely excellent (◎)

[0076] 1-4 scratches: rated "Excellent" (〇)

[0077] 5-14 scratches: rated as "moderate" (Δ)

[0078] 15 or more scratches: Rating "Poor" (×)

[0079] Changes in haze after wear: Replacement of 4cm 2 The friction head uses a load of 500 g / cm. 2 Bon Star#0000 steel wool was used to rub the anti-glare film 50 times at 30 rpm. The haze was evaluated according to the description of JIS K7136 using NDH-2000 (Nippon Denshoku Corp.), and the change in haze before and after the abrasion resistance test was calculated.

[0080] Anti-glare film evaluation: The anti-glare film is adhered to a black acrylic board using transparent optical adhesive. Two fluorescent tubes are then projected onto the surface of the anti-glare film, and the degree of light diffusion from the fluorescent tubes is visually compared. The anti-glare performance of the anti-glare film is evaluated according to the following 5 levels. An anti-glare level of Lv.5 is considered passing.

[0081] Lv.1: The two separate fluorescent tubes are clearly visible, and their outlines can be clearly distinguished as straight lines.

[0082] Lv.2: The two separate fluorescent tubes are clearly visible, but their outlines are slightly blurry.

[0083] Lv.3: Two separate fluorescent tubes can be seen, their outlines are vaguely visible, but the shape of the fluorescent tubes can be identified.

[0084] Lv.4: It can be seen that there are 2 fluorescent tubes, but their shapes cannot be identified.

[0085] Lv.5: The two separate fluorescent tubes are not visible, nor can their shape be discerned, indicating excellent anti-glare properties with no glare.

[0086] Surface roughness measurement: The anti-glare film was adhered to a black acrylic plate using transparent optical adhesive. An OLYMPUS LEXT OLS5000-SAF 3D laser conjugate microscope and an MPLAPON 20xLEXT objective lens were used to measure the surface roughness of a 640 x 640 μm plate. 2 Four 3D surface roughness images were taken for the area. The root mean square height (Sq), arithmetic mean height (Sa), maximum height (Sz), and root mean square gradient (tilt angle) (SΔq) were measured according to the surface roughness description of ISO 25178-2:2012, or the arithmetic mean deviation (Ra), maximum height (Rz), average width (RSm), and root mean square slope (tilt angle) (RΔq) were measured according to the line roughness description of ISO 4287:1997. Each test was performed five times and the average value was taken.

[0087] Evaluation of Sparkle Resistance: The anti-glare film was adhered to the screen surfaces of a BenQ EW2780U LCD monitor (163 PPI) and an Apple iPad 4 (264 PPI) using transparent optical adhesive. With the LCD monitors switched to full-screen green display mode, the degree of sparkle of the anti-glare film and anti-reflective anti-glare film was visually evaluated from a vertical distance of 50 cm from the screen surface. If there is no sparkle, it is rated as "Excellent" (◎); if there is slight sparkle but it is not obvious and does not affect the display quality, it is rated as "Excellent" (〇); if there is obvious sparkle but the display quality is acceptable, it is rated as "Medium" (Δ); if there is obvious sparkle and it seriously affects the display quality, it is rated as "Poor" (×).

[0088] Example 2: Preparation of high-haze anti-glare film

[0089] Example 2 uses the same method as Example 1 to prepare a high haze anti-glare film, except that 24.8 parts by weight of spherical polystyrene microparticles (XX-40IK) are used, and an anti-glare coating with a thickness of 6.5 μm is formed on a TAC substrate to complete the preparation of the high haze anti-glare film.

[0090] The high haze anti-glare film obtained in Example 2 was subjected to optical and physical property analysis as in Example 1, and the results are shown in Tables 1 to 3.

[0091] Example 3: Preparation of a high haze anti-glare film

[0092] Example 3: Preparation of a high haze anti-glare film The high haze anti-glare film was prepared using the same method as in Example 1, except that 20.0 parts by weight of amorphous silica microparticles (SS-50B), 16.5 parts by weight of spherical polystyrene particles (XX-40IK) were used, and an anti-glare coating layer having a thickness of 6.7 μm was formed on a TAC substrate.

[0093] The high haze anti-glare film obtained in Example 3 was subjected to optical and physical property analysis as in Example 1, and the results are shown in Tables 1 to 3.

[0094] Example 4: Preparation of a high haze anti-glare film

[0095] Example 4: Preparation of a high haze anti-glare film

[0096] The high haze anti-glare film obtained in Example 4 was subjected to optical and physical property analysis as in Example 1, and the results are shown in Tables 1 to 3.

[0097] Example 5: Preparation of a high haze anti-glare film

[0098] Example 5: Preparation of a high haze anti-glare film

[0099] The high haze anti-glare film obtained in Example 5 was subjected to optical and physical property analysis as in Example 1, and the results are shown in Tables 1 to 3.

[0100] Example 6: Preparation of a high haze anti-glare film

[0101] Example 6: Preparation of a high haze anti-glare film SS-50B), 33.0 parts by weight of polystyrene microparticles (XX-40IK), 2.2 parts by weight of a dispersing solution (DisperBYK-2150), 13 parts by weight of a leveling agent (BYK-UV3535, solid content of 10%, solvent: n-butyl acetate, available from BYK, Germany), 90 parts by weight of ethyl acetate (EAC), and 160 parts by weight of n-butyl acetate (nBAC), were mixed and uniformly dispersed by stirring to form an anti-glare layer solution. The anti-glare layer solution was applied to a 60 μm triacetyl cellulose (TAC) substrate, dried, and then subjected to photo-curing under a nitrogen atmosphere at 300 mJ / cm2of UV light to form an anti-glare coating layer having a thickness of 5.8 μm on the TAC substrate, thereby completing the preparation of the high haze anti-glare film. 2 The anti-glare layer solution was applied to a 60 μm triacetyl cellulose (TAC) substrate, dried, and then subjected to photo-curing under a nitrogen atmosphere at 300 mJ / cm2of UV light to form an anti-glare coating layer having a thickness of 5.8 μm on the TAC substrate, thereby completing the preparation of the high haze anti-glare film.

[0102] The high haze anti-glare film obtained in Example 6 was subjected to optical and physical property analysis as in Example 1, and the results are shown in Tables 1 to 3.

[0103] Example 7: Preparation of a High Haze Anti-Glare Film

[0104] Example 7: Preparation of a High Haze Anti-Glare Film The anti-glare layer solution was applied to a 60 μm triacetyl cellulose (TAC) substrate, dried, and then subjected to photo-curing under a nitrogen atmosphere at 300 mJ / cm2of UV light to form an anti-glare coating layer having a thickness of 5.8 μm on the TAC substrate, thereby completing the preparation of the high haze anti-glare film.

[0105] The high haze anti-glare film obtained in Example 7 was subjected to optical and physical property analysis as in Example 1, and the results are shown in Tables 1 to 3.

[0106] Example 8: Preparation of a High Haze Anti-Glare Film

[0107] Example 8: Preparation of a High Haze Anti-Glare Film

[0108] The high haze anti-glare film obtained in Example 8 was subjected to the following optical and physical property analysis, and the results are shown in Tables 1 to 3.

[0109] In Table 1, the high haze anti-glare films obtained in Examples 1 to 8 exhibited excellent anti-glare properties and superior performance in the high PPI flicker resistance evaluation.

[0110] Table 1: Optical Evaluation of the High Haze Anti-Glare Films of Examples 1 to 8

[0111]

[0112]

[0113] The high haze anti-glare films obtained in Examples 1 to 8 were subjected to surface roughness analysis, as shown in Table 2. The high haze anti-glare films obtained in Examples 1 to 8 formed a concave-convex surface having a plurality of protrusions with a small average width, and irregularity of the protrusions of the anti-glare coating surface could be exhibited, so that the anti-glare film could further increase the anti-flashing property.

[0114] Table 2: Surface roughness evaluation of the high haze anti-glare films of Examples 1 to 8

[0115]

[0116] The high haze anti-glare films obtained in Examples 1 to 8 were subjected to pencil hardness, abrasion resistance, and haze change after abrasion, all of which were excellent, as shown in Table 3. The high haze anti-glare films obtained in Examples 1 to 8 had good pencil hardness, and excellent abrasion resistance and haze change after abrasion.

[0117] Table 3: Optical evaluation of the high haze anti-glare films of Examples 1 to 8

[0118]

[0119] Example 9: Preparation of a high haze anti-glare anti-reflection film

[0120] A low refractive index layer solution I was prepared by uniformly mixing and stirring 42.6 parts by weight of a fluorine and acrylate-modified polysiloxane resin (X-12-2430C, available from Shin-Etsu Chemical, Japan), 42.6 parts by weight of a fluorinated polyurethane oligomer having a 6-functional group (LR6000, available from Miwon, Korea), 5.6 parts by weight of a photoinitiator (KIP-160, available from IGM Resin, the Netherlands), 61.1 parts by weight of a mixture of (meth)acryl-modified organosilicon compounds having a perfluoropolyether functional group (X-71-1203E, solid content of 20%, solvent of butanone, available from Shin-Etsu Chemical, Japan), 524 parts by weight of hollow silica nanoparticle dispersion sol (Thrulya 4320, solid content of 20%, average particle diameter of 60 nm, solution of methyl isobutyl ketone, available from Nippon Shokubai Seiyu Co., Japan), and 7194 parts by weight of ethyl acetate (EAC).

[0121] A high haze anti-glare film 3-1 was prepared in the same manner as in Example 3, except that the leveling agent BYK-333 was replaced with the recoatable leveling agent BYK-UV3535.

[0122] The low refractive layer solution I was coated on the anti-glare coating of the high haze anti-glare film 3-1, dried at 80°C, and then cured by UV light under nitrogen atmosphere at 300 mJ / cm 2 The low refractive layer solution I was coated on the anti-glare coating of the high haze anti-glare film 3-1, dried at 80°C, and then cured by UV light under nitrogen atmosphere at 300 mJ / cm

[0123] The anti-glare anti-reflection film obtained in Example 9 was subjected to optical analysis and surface evaluation as in Example 9, and the results are shown in Table 4.

[0124] Reflectance measurement: The anti-glare anti-reflection film was attached to a black acrylic plate, and the 5-degree angle average reflectance, the average reflectance of the diffuse and specular reflection in SCI mode, and the average reflectance of the diffuse in SCE mode were measured using a HITACHI U-4150 spectrophotometer in the wavelength range of 380-780 nm.

[0125] Water contact angle measurement: The anti-glare anti-reflection film was attached to a stage, and the measurement was performed by adding one drop of about 0.01 mL of water at a time using a Surface Electro Optics (SEO) Phoenix-150 contact angle meter.

[0126] Example 10: Preparation of a high haze anti-glare anti-reflection film

[0127] A low refractive layer solution II was prepared. 85.2 parts by weight of a fluorine and acrylate-modified polysiloxane resin (X-12-2430C, available from Shin-Etsu Chemical, Japan), 5.6 parts by weight of a photoinitiator (KIP-160), 61.1 parts by weight of a mixture of (meth)acryl-modified organosilicon compounds having perfluoropolyether functional groups (X-71-1203E), 524 parts by weight of hollow silica nanoparticle dispersion sol (Thrulya 4320), 3595 parts by weight of ethyl acetate (EAC), and 3595 parts by weight of propylene glycol methyl ether acetate (PMA) were mixed and stirred uniformly to form the low refractive layer solution II.

[0128] A high haze anti-glare film 5-1 was prepared in the same manner as in Example 5, except that the leveling agent BYK-333 was replaced with a re-coatable leveling agent BYK-UV3535. The low refractive layer solution II was coated on the anti-glare coating of the high haze anti-glare film 5-1 to form a high haze anti-glare anti-reflection film.

[0129] The anti-glare anti-reflection film obtained in Example 10 was subjected to optical analysis and surface evaluation as in Example 9, and the results are shown in Table 4.

[0130] Example 11: Preparation of a high haze anti-glare anti-reflection film The anti-glare anti-reflection film obtained in Example 9 was subjected to optical analysis and surface evaluation as in Example 9, and the results are shown in Table 4.

[0131] Low emissivity layer solution II was prepared by the same method as in Example 10, and was coated on the anti-glare coating of the high haze anti-glare film obtained in Example 6, dried at 80°C, and then subjected to photo-curing under a nitrogen atmosphere at 300 mJ / cm 2 The UV lamp was irradiated at a dose to photo-cure, to form a high haze anti-glare anti-reflective film.

[0132] The obtained anti-glare anti-reflective film was subjected to optical measurement and surface evaluation as in Example 9, and the results are shown in Table 4.

[0133] Example 12: Preparation of a high haze anti-glare anti-reflective film

[0134] Low emissivity layer solution II was prepared by the same method as in Example 10, and was coated on the anti-glare coating of the high haze anti-glare film obtained in Example 6, dried at 80°C, and then subjected to photo-curing under a nitrogen atmosphere at 300 mJ / cm 2 The UV lamp was irradiated at a dose to photo-cure, to form a high haze anti-glare anti-reflective film.

[0135] The obtained anti-glare anti-reflective film was subjected to optical measurement and surface evaluation as in Example 9, and the results are shown in Table 4.

[0136] The high haze anti-glare anti-reflective films obtained in Examples 9 to 12 were subjected to optical measurement and surface evaluation, and the results are shown in Table 4. The 5-degree average reflectance of the high haze anti-glare anti-reflective films prepared in the examples was only between 0.02% and 0.07%, and the SCI average reflectance was between 1.78% and 2.19%, which provided excellent anti-reflective properties.

[0137] Table 4: Optical evaluation of the high haze anti-glare anti-reflective films of Examples 9 to 12

[0138]

[0139] The high haze anti-glare anti-reflective film of the present application, after coating of a low refractive index layer, has a 5-degree average reflectance of only between 0.02% and 0.07%, and a SCI average reflectance of between 1.78% and 2.19%, which, in addition to maintaining the original anti-glare and anti-flare properties, further provides anti-reflective properties.

[0140] Although the present application has been disclosed with reference to the examples as above, it is not intended to limit the present application, and any person skilled in the art can make various modifications and modifications without departing from the spirit and scope of the present application, and therefore the scope of protection of the present application is defined by the appended claims.

Claims

1. A high haze anti-glare film, comprising: transparent substrate; and an anti-glare coating layer formed on the transparent substrate, the anti-glare coating layer comprising an acrylic binder resin, a plurality of amorphous silica microparticles, and a plurality of spherical organic microparticles, wherein the spherical organic microparticles are monodispersed and have an average particle size smaller than that of the amorphous silica microparticles; wherein the amorphous silica microparticles in the anti-glare coating layer have a laser method average particle size of between 3.0 μm and 10 μm; wherein the high haze anti-glare film has a total haze Ht of greater than 40%, wherein the total haze Ht is the sum of a surface haze Hs of the high haze anti-glare film and an internal haze Hi of the high haze anti-glare film, and the internal haze Hi and the total haze Ht satisfy the relationship: 0.25 < Hi / Ht < 0.75; wherein the amorphous silica microparticles of the anti-glare coating layer form a concave-convex surface having a plurality of irregular projections on a surface of the anti-glare coating layer, the concave-convex surface has an arithmetic average deviation Ra of a line roughness of between 0.2 μm and 1.0 μm and an average width RSm of between 4 μm and 20 μm, wherein Ra and RSm satisfy the relationship: 2.0 < (Rax100) / RSm < 18, and the irregular projections have a tilt angle, i.e., a root mean square slope RΔq, of between 15° and 50°.

2. The high-haze anti-glare film according to claim 1, wherein the BET specific surface area of the amorphous silica microparticles in the anti-glare coating is between 60 m 2 / g and 100 m 2 / g.

3. The high haze anti-glare film according to claim 1, wherein the spherical organic microparticles in the anti-glare coating layer have a laser method average particle size of between 2.0 μm and 8 μm.

4. The high haze anti-glare film according to claim 1, wherein the amorphous silica microparticles are used in an amount of between 6 parts by weight and 25 parts by weight per 100 parts by weight of the acrylic binder resin.

5. The high haze anti-glare film according to claim 4, wherein the amorphous silica microparticles are used in an amount of between 7 parts by weight and 20 parts by weight per 100 parts by weight of the acrylic binder resin.

6. The high haze anti-glare film according to claim 1, wherein the spherical organic microparticles are used in an amount of between 6 parts by weight and 40 parts by weight per 100 parts by weight of the acrylic binder resin.

7. The high haze anti-glare film according to claim 6, wherein the amorphous silica microparticles are used in an amount of between 10 parts by weight and 38 parts by weight per 100 parts by weight of the acrylic binder resin.

8. The high haze anti-glare film according to claim 1, wherein the total amount of the organic microparticles and the amorphous silica microparticles used in the acrylic binder resin is between 15 parts by weight and 50 parts by weight per 100 parts by weight of the acrylic binder resin.

9. The high haze anti-glare film according to claim 1, wherein the weight ratio of the amount of the organic microparticles and the amorphous silica microparticles used in the acrylic binder resin is not less than 0.3 and not more than 5.

10. The high haze anti-glare film according to claim 1, wherein the anti-glare coating layer has a thickness of between 2.0 μm and 10 μm.

11. A high-haze anti-glare anti-reflection film comprising the high-haze anti-glare film according to claim 1 and a low-refraction layer formed on the anti-glare coating layer of the high-haze anti-glare film, wherein the 5-degree angle average reflectance of the high-haze anti-glare anti-reflection film is not more than 0.15% and both the SCI diffuse and specular average reflectance and the SCE diffuse average reflectance are not more than 2.5%.

12. The high-haze anti-glare anti-reflection film according to claim 11, wherein the refractive index of the low-refraction layer is not more than 1.

4.

13. The high-haze anti-glare anti-reflection film according to claim 11, wherein the low-refraction layer comprises a binder resin, a plurality of hollow silica nanoparticles, and a leveling agent comprising a (meth)acryl-modified organosilicon compound having a perfluoropolyether functional group.

14. The high-haze anti-glare anti-reflection film according to claim 13, wherein the binder resin of the low-refraction layer is a (meth)acrylic resin or a polysiloxane resin modified with fluorine and acrylate.

15. The high-haze anti-glare anti-reflection film according to claim 11, having a water contact angle of a surface thereof of more than 90°.

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