Anti-glare coating liquid and preparation method, anti-glare coating, anti-glare optical film and preparation method, polarizing plate

Abstract

The application provides an anti-dazzle coating liquid and a preparation method thereof, an anti-dazzle coating layer, an anti-dazzle optical film and a preparation method thereof, and a polarizer, and belongs to the technical field of optical films. The preparation method of the anti-dazzle coating liquid comprises the following steps: stirring a mixed solution containing an acrylic resin and an anti-dazzle system. The preparation method of the anti-dazzle system comprises the following steps: mixing a first inorganic sol, organic anti-dazzle particles and a non-alcohol solvent to obtain a first system; and then mixing the first system, a second inorganic sol, an alcohol solvent and a polyether siloxane. The organic anti-dazzle particles in the anti-dazzle coating liquid provided by the application are in an effectively encapsulated and isolated state; the anti-dazzle coating layer prepared by adopting the anti-dazzle coating liquid and being solidified and formed can make the organic anti-dazzle particles not be easily affected in the use process of the anti-dazzle coating layer; not only can the organic anti-dazzle particles fully play the anti-dazzle and high-definition functions, but also can improve the problem of haze reduction that is prone to occurring in the anti-dazzle coating layer using the organic anti-dazzle particles.

Description

Technical Field

[0001] This application relates to the field of optical film technology, and more specifically, to an anti-glare coating liquid and its preparation method, an anti-glare coating layer, an anti-glare optical film and its preparation method, and a polarizer. Background Technology

[0002] Monitors are affected by external light sources during use, which can cause glare and make viewing difficult. Therefore, it is necessary to cover the surface of the monitor with an anti-glare optical film to protect the monitor and reduce glare when using it in bright light.

[0003] Anti-glare optical films consist of a transparent substrate and an anti-glare coating covering the surface of the transparent substrate. The anti-glare coating contains anti-glare particles, which can be categorized as inorganic or organic. With the development of display technology, displays are evolving towards larger sizes, wider viewing angles, and higher resolutions. To achieve high definition and anti-glare effects, the anti-glare particles in current anti-glare coatings primarily utilize organic anti-glare particles that provide higher clarity.

[0004] However, the inventors discovered that the haze of the high-precision anti-glare coating using organic anti-glare particles decreases over time. This decrease in haze can cause eye strain when viewing the monitor, resulting in a poor viewing experience. Summary of the Invention

[0005] The purpose of this application is to provide an anti-glare coating liquid and its preparation method, an anti-glare coating, an anti-glare optical film and its preparation method, and a polarizer, which aim to improve the haze reduction problem that easily occurs in anti-glare coatings using organic anti-glare particles.

[0006] In a first aspect, this application provides a method for preparing an anti-glare coating liquid, the method comprising: stirring a mixture containing acrylic resin and an anti-glare system. The method for preparing the anti-glare system comprises: mixing a first inorganic sol, organic anti-glare particles, and a non-alcohol solvent to obtain a first system; and then mixing the first system, a second inorganic sol, an alcohol solvent, and a polyether siloxane.

[0007] In the preparation method of the anti-glare coating liquid provided in this application, the non-alcohol solvent can promote the dissolution and dispersion of organic anti-glare particles; the first inorganic sol has a large specific surface area, which can adsorb organic anti-glare particles on the surface of the first inorganic sol; the alcohol solvent and polyether siloxane can cause the second inorganic sol to agglomerate and coat the surface of the first inorganic sol on which the organic anti-glare particles are adsorbed, so that the organic anti-glare particles are effectively encapsulated by the second inorganic sol, thereby keeping the organic anti-glare particles in the anti-glare coating liquid in a state of effective encapsulation and isolation by the second inorganic sol. The organic anti-glare particles in the anti-glare coating obtained by curing and molding the anti-glare coating liquid are effectively encapsulated and isolated, which not only allows the organic anti-glare particles to fully exert their anti-glare and high-definition effects, but also improves the haze reduction problem that easily occurs in anti-glare coatings using organic anti-glare particles, so that the anti-glare coating not only has high definition and good anti-glare effect, but also does not easily reduce haze.

[0008] In conjunction with the first aspect, in optional embodiments of this application, the first inorganic sol and the second inorganic sol are each independently selected from at least one of nanoscale silica sol, nanoscale aluminum sol, and nanoscale zirconium sol; and / or the material of the organic anti-glare particles is selected from at least one of acrylic resin, polystyrene resin, styrene-acrylic copolymer, and polyethylene resin; and / or the non-alcohol solvent is selected from at least one of ester solvent, ether solvent, ketone solvent, and benzene solvent; and / or the alcohol solvent is selected from at least one of isopropanol, propylene glycol, and cyclopentanol; and / or the polyether siloxane is selected from at least one of polyether-modified polydimethylsiloxane and polyether-modified heptamethyltrisiloxane; and / or the acrylic resin is selected from at least one of polyurethane acrylic resin, silicone acrylic resin, and polyester acrylic resin.

[0009] In conjunction with the first aspect, in optional embodiments of this application, the mass ratio of the first inorganic sol to the organic anti-glare particles is (0.5-5):1; or / and, the mass ratio of the non-alcohol solvent to the organic anti-glare particles is (5-10):1; or / and, the mass ratio of the second inorganic sol to the organic anti-glare particles is (10-20):1; or / and, the mass ratio of the alcohol solvent to the organic anti-glare particles is (5-10):1; or / and, the mass ratio of the polyether siloxane to the organic anti-glare particles is (0.01-0.1):1.

[0010] In the above technical solution, the mass ratio of the first inorganic sol to the organic anti-glare particles is (0.5-5):1, which allows the organic anti-glare particles to be fully adsorbed by the first inorganic sol; the mass ratio of the non-alcohol solvent to the organic anti-glare particles is (5-10):1, which allows the organic anti-glare particles to be fully dissolved and dispersed by the non-alcohol solvent; the mass ratio of the second inorganic sol to the organic anti-glare particles is (10-20):1, which allows the second inorganic sol to be fully coated on the surface of the first inorganic sol on which the organic anti-glare particles are adsorbed; the mass ratio of the alcohol solvent to the organic anti-glare particles is (5-10):1 or / and the mass ratio of the polyether siloxane to the organic anti-glare particles is (0.01-0.1):1, which can further promote the aggregation of the second inorganic sol, thereby facilitating the second inorganic sol to be fully coated on the surface of the first inorganic sol on which the organic anti-glare particles are adsorbed.

[0011] In conjunction with the first aspect, in optional embodiments of this application, the first inorganic sol, organic anti-glare particles, and non-alcohol solvent are mixed by a first stirring and mixing method, the stirring speed of the first stirring and mixing is 500 rpm to 2000 rpm, and the stirring and mixing time is 30 to 120 min; or / and, the first system, the second inorganic sol, alcohol solvent, and polyether siloxane are mixed by a second stirring and mixing method, the stirring speed of the second stirring and mixing is 500 rpm to 1000 rpm, and the stirring and mixing time is 30 min to 60 min.

[0012] In the above technical solution, the first stirring and mixing within the above parameter range allows the organic anti-glare particles to be more fully adsorbed by the first inorganic sol; the second stirring and mixing within the above parameter range is beneficial for the second inorganic sol to be more fully coated on the surface of the first inorganic sol that adsorbs the organic anti-glare particles.

[0013] In conjunction with the first aspect, in an optional embodiment of this application, the mixture comprises the following components in parts by weight: 35 to 60 parts of an anti-glare system, 10 to 20 parts of acrylic resin, and 20 to 50 parts of a dispersing solvent.

[0014] Optionally, the mixture may also include 0.5 to 2 parts of photoinitiator.

[0015] Optionally, the mixture may also include 0.01 to 0.15 parts of a leveling agent.

[0016] Optionally, the mixture may also include 4 to 10 parts of acrylate monomers.

[0017] Optionally, the dispersing solvent is selected from at least one of ethyl acetate, butyl acetate, toluene, xylene, acetone, butanone, cyclohexanone, methyl isobutyl ketone, propylene glycol methyl ether, propylene glycol ethyl ether, ethylene glycol butyl ether, propylene glycol butyl ether, butanediol butyl ether, and dipropylene glycol methyl ether.

[0018] Secondly, this application provides an anti-glare coating liquid, which is prepared by the preparation method of the anti-glare coating liquid provided in any of the first aspects above.

[0019] In the anti-glare coating provided in this application, the organic anti-glare particles are in a state of effective encapsulation and isolation. The organic anti-glare particles in the anti-glare coating obtained by curing the anti-glare coating are effectively encapsulated and isolated, which makes the organic anti-glare particles less susceptible to influence during the use of the anti-glare coating. This not only allows the organic anti-glare particles to fully exert their anti-glare and high-definition effects, but also improves the haze reduction problem that easily occurs in anti-glare coatings using organic anti-glare particles, so that the anti-glare coating not only has high definition and good anti-glare effect, but also does not easily reduce haze.

[0020] Thirdly, this application provides an anti-glare coating, which is a cured product of the anti-glare coating liquid provided in the second aspect above.

[0021] The organic anti-glare particles in the anti-glare coating provided in this application are effectively encapsulated and isolated, which makes the organic anti-glare particles less susceptible to influence during the use of the anti-glare coating. This not only allows the organic anti-glare particles to fully exert their anti-glare and high-definition effects, but also improves the haze reduction problem that easily occurs in anti-glare coatings using organic anti-glare particles, so that the anti-glare coating not only has high definition and good anti-glare effect, but also does not easily reduce haze.

[0022] Fourthly, this application provides an anti-glare optical film, which includes a transparent substrate and the anti-glare coating provided in the third aspect above; the anti-glare coating covers the surface of the transparent substrate.

[0023] The organic anti-glare particles in the anti-glare optical film provided in this application are effectively encapsulated and isolated, which makes the organic anti-glare particles less susceptible to interference during the use of the anti-glare optical film. This not only allows the organic anti-glare particles to fully exert their anti-glare and high-definition effects, but also improves the haze reduction problem that easily occurs in anti-glare optical films using organic anti-glare particles, so that the anti-glare optical film not only has high definition and good anti-glare effect, but also does not easily reduce haze.

[0024] Fifthly, this application provides a method for preparing an anti-glare optical film, the method comprising: coating the anti-glare coating liquid provided in the second aspect above onto the surface of a transparent substrate, and then sequentially performing heat curing and UV curing; wherein the anti-glare coating liquid contains a photoinitiator.

[0025] Optionally, the curing temperature is 60℃~80℃, and the curing time is 2min~4min.

[0026] Optionally, the UV curing energy is 200 mJ / cm².2 ~600mJ / cm 2 .

[0027] In a sixth aspect, this application provides a polarizer comprising the anti-glare coating provided in the third aspect, the anti-glare optical film provided in the fourth aspect, or an anti-glare optical film prepared by the method for preparing the anti-glare optical film provided in the fifth aspect.

[0028] The organic anti-glare particles in the polarizer provided in this application are effectively encapsulated and isolated, which makes the organic anti-glare particles less susceptible to interference during the use of the polarizer. This not only allows the organic anti-glare particles to fully exert their anti-glare and high-definition effects, but also improves the haze reduction problem that occurs when using polarizers with organic anti-glare particles, so that the polarizer not only has high definition and good anti-glare effect, but also does not easily reduce haze. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 The process flow diagram for preparing the anti-glare coating provided in this application is shown. Detailed Implementation

[0031] This application provides a method for preparing an anti-glare coating liquid, the method comprising: stirring a mixture containing acrylic resin and an anti-glare system. The method for preparing the anti-glare system comprises: mixing a first inorganic sol, organic anti-glare particles, and a non-alcohol solvent to obtain a first system; then mixing the first system, a second inorganic sol, an alcohol solvent, and a polyether siloxane.

[0032] In the preparation method of the anti-glare coating liquid provided in this application, the non-alcohol solvent can promote the dissolution and dispersion of organic anti-glare particles; the first inorganic sol has a large specific surface area, which can adsorb organic anti-glare particles on the surface of the first inorganic sol; the alcohol solvent and polyether siloxane can cause the second inorganic sol to agglomerate and coat the surface of the first inorganic sol on which the organic anti-glare particles are adsorbed, so that the organic anti-glare particles are effectively encapsulated by the second inorganic sol, thereby making the organic anti-glare particles in the anti-glare coating liquid in a state of being effectively encapsulated and isolated by the second inorganic sol.

[0033] The organic anti-glare particles in the anti-glare coating obtained by curing the anti-glare liquid are effectively encapsulated and isolated. This not only allows the organic anti-glare particles to fully exert their anti-glare and high-definition effects, but also improves the haze reduction problem that easily occurs in anti-glare coatings using organic anti-glare particles. As a result, the anti-glare coating not only has high definition and good anti-glare effect, but also does not easily reduce haze.

[0034] Figure 1 For a flow chart of the preparation process of the anti-glare coating provided in this application, please refer to [link / reference needed]. Figure 1 The preparation method of the anti-glare coating liquid includes the following steps:

[0035] S110, the first inorganic sol, organic anti-glare particles and non-alcohol solvent are mixed to obtain the first system; then the first system, the second inorganic sol, the alcohol solvent and polyether siloxane are mixed to obtain the anti-glare system.

[0036] In this application, organic anti-glare particles refer to particles made of organic materials that have anti-glare properties.

[0037] Organic anti-glare particles are used in this application; compared with inorganic anti-glare particles, organic anti-glare particles can make the anti-glare coating have higher clarity.

[0038] In some optional embodiments of this application, the organic anti-glare particles are made of at least one selected from acrylic resin, polystyrene resin, styrene-acrylic copolymer, and polyethylene resin.

[0039] As an example, the organic anti-glare particles can be made of polymethyl methacrylate (PMMA).

[0040] It should be noted that, in other feasible embodiments of this application, the organic anti-glare particles are not limited to the substances described above. Organic anti-glare particles can be obtained through conventional commercial purchases.

[0041] In this application, the non-alcohol solvent can promote the dissolution and dispersion of the organic anti-glare particles, thereby enabling the organic anti-glare particles to fully contact the first inorganic sol and for the organic anti-glare particles to be adsorbed by the first inorganic sol.

[0042] In some optional embodiments of this application, the non-alcohol solvent is selected from at least one of ester solvents, ether solvents, ketone solvents, and benzene solvents.

[0043] Furthermore, the non-alcoholic solvent is selected from at least one of ethyl acetate, butyl acetate, toluene, xylene, acetone, butanone, cyclohexanone, methyl isobutyl ketone, propylene glycol methyl ether, propylene glycol ethyl ether, ethylene glycol butyl ether, propylene glycol butyl ether, butanediol butyl ether, and dipropylene glycol methyl ether.

[0044] As an example, the non-alcohol solvent is selected from butyl acetate or propylene glycol methyl ether.

[0045] In some optional embodiments of this application, the first inorganic sol and the second inorganic sol are each independently selected from at least one of nanoscale silica sol, nanoscale aluminum sol, and nanoscale zirconium sol.

[0046] The aforementioned sol has a high specific surface area and adsorption capacity, which allows the first inorganic sol to effectively and sufficiently adsorb organic anti-glare particles onto the surface of the first inorganic sol. It also allows the second inorganic sol to effectively and sufficiently coat the surface of the first inorganic sol that adsorbs organic anti-glare particles, thereby ensuring that the organic anti-glare particles are effectively and sufficiently encapsulated and isolated in the anti-glare coating liquid.

[0047] It should be noted that in other feasible embodiments of this application, the first inorganic sol and the second inorganic sol are not limited to the above-mentioned substances, as long as they are sols made of inorganic materials.

[0048] In this application, an alcohol solvent (non-ether solvent or ester solvent) must be used to mix with the first system, the second inorganic sol, and the polyether siloxane in order to promote the aggregation of the second inorganic sol, thereby enabling the second inorganic sol to more fully coat the surface of the first inorganic sol that adsorbs organic anti-glare particles.

[0049] In some optional embodiments of this application, the alcohol solvent includes at least one of isopropanol, propylene glycol, and cyclopentanol. The aforementioned alcohol solvent can promote the aggregation of the second inorganic sol, thereby facilitating the second inorganic sol to more fully coat the surface of the first inorganic sol on which the organic anti-glare particles are adsorbed.

[0050] It should be noted that in other feasible embodiments of this application, the alcohol solvent is not limited to the above-mentioned substances, as long as it is an alcohol solvent.

[0051] In some optional embodiments of this application, the polyether siloxane is selected from at least one of polyether-modified polydimethylsiloxane and polyether-modified heptamethyltrisiloxane.

[0052] In some optional embodiments of this application, the mass ratio of the first inorganic sol to the organic anti-glare particles is (0.5 to 5):1; this allows the organic anti-glare particles to be more fully adsorbed by the first inorganic sol.

[0053] As an example, the mass ratio of the first inorganic sol to the organic anti-glare particles can be any one of 0.5:1, 1:1, 1.5:1, 2:1, 2.5:1, 3:1, 3.5:1, 4:1, 4.5:1 and 5:1 or any range between the two.

[0054] In some optional embodiments of this application, the mass ratio of non-alcoholic solvent to organic anti-glare particles is (5-10):1, which allows the organic anti-glare particles to be fully dissolved and dispersed by the non-alcoholic solvent.

[0055] As an example, the mass ratio of the non-alcohol solvent to the organic anti-glare particles can be any one of 5:1, 6:1, 7:1, 8:1, 9:1, and 10:1, or any range between the two.

[0056] In some optional embodiments of this application, the mass ratio of the second inorganic sol to the organic anti-glare particles is (10-20):1, which allows the second inorganic sol to more fully coat the surface of the first inorganic sol that adsorbs the organic anti-glare particles.

[0057] As an example, the mass ratio of the second inorganic sol to the organic anti-glare particles can be any one of 10:1, 11:1, 12:1, 13:1, 14:1, 15:1, 16:1, 17:1, 18:1, 19:1, and 20:1, or any range between the two.

[0058] In some optional embodiments of this application, the mass ratio of alcohol solvent to organic anti-glare particles is (5-10):1, which can further promote the aggregation of the second inorganic sol, thereby facilitating the second inorganic sol to more fully coat the surface of the first inorganic sol on which the organic anti-glare particles are adsorbed.

[0059] As an example, the mass ratio of alcohol solvent to organic anti-glare particles can be any one of 5:1, 6:1, 7:1, 8:1, 9:1 and 10:1 or any range between the two.

[0060] In some optional embodiments of this application, the mass ratio of polyether siloxane to organic anti-glare particles is (0.01 to 0.1):1, which can further promote the aggregation of the second inorganic sol, thereby facilitating the second inorganic sol to more fully coat the surface of the first inorganic sol on which the organic anti-glare particles are adsorbed.

[0061] As an example, the mass ratio of polyether siloxane to organic anti-glare particles can be any one of 0.01:1, 0.02:1, 0.03:1, 0.04:1, 0.05:1, 0.06:1, 0.07:1, 0.08:1, 0.09:1, and 0.1:1, or any range between the two.

[0062] In some optional embodiments of this application, the first inorganic sol, organic anti-glare particles, and non-alcohol solvent are mixed by a first stirring and mixing method. The stirring and mixing speed is 500 rpm to 2000 rpm, and the stirring and mixing time is 30 min to 120 min. Within the above parameter range, the first stirring and mixing allows the organic anti-glare particles to be sufficiently adsorbed by the first inorganic sol.

[0063] As an example, the first stirring speed can be any value among 500 rpm, 600 rpm, 700 rpm, 800 rpm, 1000 rpm, 1200 rpm, 1500 rpm, 1700 rpm and 2000 rpm or any value between the two, and the first stirring time can be any value among 30 min, 45 min, 60 min, 75 min, 90 min, 105 min and 120 min or any value between the two.

[0064] In some optional embodiments of this application, the first system, the second inorganic sol, the alcohol solvent, and the polyether siloxane are mixed by a second stirring. The stirring speed is 500 rpm to 1000 rpm, and the stirring time is 30 min to 60 min. Within the above parameter range, the second stirring facilitates the second inorganic sol to more fully coat the surface of the first inorganic sol that adsorbs the organic anti-glare particles.

[0065] As an example, the second stirring speed can be any value among 500 rpm, 600 rpm, 700 rpm, 800 rpm, 900 rpm and 1000 rpm or any value between the two, and the second stirring time can be any value among 30 min, 35 min, 40 min, 45 min, 50 min, 55 min and 60 min or any value between the two.

[0066] S120 involves stirring a mixture containing acrylic resin and an anti-glare system.

[0067] In some optional embodiments of this application, the acrylic resin includes at least one of polyurethane acrylic resin, silicone acrylic resin, and polyester acrylic resin. The aforementioned acrylic resin can undergo a cross-linking and curing reaction in the presence of ultraviolet light and a photoinitiator to form an anti-glare coating, thereby giving the anti-glare coating a certain degree of hardness and wear resistance.

[0068] In some optional embodiments of this application, the functionality of the acrylic resin is 6 to 9, which enables the anti-glare coating to have high hardness and wear resistance.

[0069] As an example, the acrylic resin is selected from either a nine-functional polyurethane acrylic resin or a six-functional polyurethane acrylic resin.

[0070] It should be noted that in other optional embodiments of this application, the acrylic resin is not limited to the above-mentioned substances. For example, the acrylic resin may also be selected from epoxy acrylic resin or aromatic acrylic resin, etc.

[0071] In some optional embodiments of this application, the mixture comprises the following components by weight: 35 to 60 parts of anti-glare system, 10 to 20 parts of acrylic resin, and 20 to 50 parts of dispersion solvent.

[0072] As an example, in the mixture, the weight parts of the anti-glare system can be any one of 35 parts, 40 parts, 45 parts, 50 parts, 55 parts, and 60 parts, or any range between two; the weight parts of the acrylic resin can be any one of 10 parts, 12 parts, 15 parts, 17 parts, and 20 parts, or any range between two; and the dispersing solvent can be any one of 20 parts, 25 parts, 30 parts, 35 parts, 40 parts, 45 parts, and 50 parts, or any range between two.

[0073] In some optional embodiments of this application, the dispersing solvent includes at least one selected from ethyl acetate, butyl acetate, toluene, xylene, acetone, butanone, cyclohexanone, methyl isobutyl ketone, propylene glycol methyl ether, propylene glycol ethyl ether, ethylene glycol butyl ether, propylene glycol butyl ether, butanediol butyl ether, and dipropylene glycol methyl ether. Using the above-mentioned solvents as the dispersing solvent allows for the effective dispersion of the anti-glare system and acrylic resins, etc.

[0074] In some optional embodiments of this application, the mixture further includes 0.5 to 2 parts of a photoinitiator. The photoinitiator is used to initiate the crosslinking of the acrylic resin, so that the anti-glare coating undergoes a curing reaction to form an anti-glare coating.

[0075] As an example, the weight of the photoinitiator in the mixture can be any one of 0.5 parts, 0.8 parts, 1 part, 1.2 parts, 1.5 parts, 1.7 parts, and 2 parts, or any range between both.

[0076] In some optional embodiments of this application, the photoinitiator includes at least one of 2-hydroxy-2-methylphenylacetone, 1-hydroxycyclohexylphenylacetone, and 2,4,6-trimethylbenzoyl-diphenylphosphine oxide.

[0077] It should be noted that in other optional embodiments of this application, the photoinitiator is not limited to the above-mentioned substances. For example, the photoinitiator may also be selected from 1,1'(methylenedi-4,1-phenylene)bis[2-hydroxy-2-methyl-1-acetone], benzoin dimethyl ether, 2-methyl-1-(4-methylthiophenyl)-2-morpholino-1-propanone, 2-benzyl-2-dimethylamino-1-(4-morpholinophenyl)butanone, or phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide, etc.

[0078] It should be noted that when preparing the anti-glare coating liquid in this application, a photoinitiator may not be used. Before using the anti-glare coating liquid to form the anti-glare coating, the anti-glare coating liquid is mixed with the photoinitiator and then cured to form the anti-glare coating.

[0079] In some optional embodiments of this application, the mixture further includes 4 to 10 parts of acrylate monomers. The acrylate monomers are used to improve the adhesion of the anti-glare coating and adjust its flexibility.

[0080] As an example, the weight parts of the acrylate monomer in the mixture can be any one of 4 parts, 5 parts, 6 parts, 7 parts, 8 parts, 9 parts, and 10 parts, or any range between both.

[0081] In some optional embodiments of this application, the functionality of the acrylate monomer is 3 to 6, which can improve the adhesion and flexibility of the anti-glare coating.

[0082] Furthermore, in some optional embodiments of this application, the acrylate monomer includes at least one of pentaerythritol hexaacrylate, pentaerythritol triacrylate, ethoxyethyl acrylate, trimethylolpropane triacrylate, hexanediol diacrylate, and propoxypentanediol diacrylate.

[0083] In some optional embodiments of this application, the mixture further includes 0.01 to 0.15 parts of a leveling agent. The leveling agent is used to make the anti-glare coating smoother during application.

[0084] As an example, the weight of the leveling agent in the mixture can be any one of 0.01 parts, 0.02 parts, 0.05 parts, 0.07 parts, 0.1 parts, 0.12 parts, and 0.15 parts, or any range between both.

[0085] As an example, the leveling agent may be a fluorinated acrylic polymer leveling agent, but this application is not limited to that.

[0086] This application provides an anti-glare coating liquid, which is prepared by the method described above.

[0087] In the anti-glare coating provided in this application, the organic anti-glare particles are in a state of effective encapsulation and isolation. The organic anti-glare particles in the anti-glare coating obtained by curing the anti-glare coating are effectively encapsulated and isolated, which makes the organic anti-glare particles less susceptible to influence during the use of the anti-glare coating. This not only allows the organic anti-glare particles to fully exert their anti-glare and high-definition effects, but also improves the haze reduction problem that easily occurs in anti-glare coatings using organic anti-glare particles, so that the anti-glare coating not only has high definition and good anti-glare effect, but also does not easily reduce haze.

[0088] This application provides an anti-glare coating, which is the cured product of the anti-glare coating liquid provided above.

[0089] The organic anti-glare particles in the anti-glare coating provided in this application are effectively encapsulated and isolated, which makes the organic anti-glare particles less susceptible to influence during the use of the anti-glare coating. This not only allows the organic anti-glare particles to fully exert their anti-glare and high-definition effects, but also improves the haze reduction problem that easily occurs in anti-glare coatings using organic anti-glare particles, so that the anti-glare coating not only has high definition and good anti-glare effect, but also does not easily reduce haze.

[0090] This application provides a method for preparing the above-mentioned anti-glare coating, the method comprising: sequentially subjecting the aforementioned anti-glare coating liquid to heat curing and UV curing.

[0091] In some optional embodiments of this application, the heat curing temperature is 60°C to 80°C, and the heat curing time is 2 min to 4 min.

[0092] In some optional embodiments of this application, the UV curing energy is 200 mJ / cm². 2 ~600mJ / cm 2 .

[0093] This application provides an anti-glare optical film, which includes a transparent substrate and the anti-glare coating provided above; the anti-glare coating covers the surface of the transparent substrate.

[0094] The organic anti-glare particles in the anti-glare optical film provided in this application are effectively encapsulated and isolated, which makes the organic anti-glare particles less susceptible to interference during the use of the anti-glare optical film. This not only allows the organic anti-glare particles to fully exert their anti-glare and high-definition effects, but also improves the haze reduction problem that easily occurs in anti-glare optical films using organic anti-glare particles, so that the anti-glare optical film not only has high definition and good anti-glare effect, but also does not easily reduce haze.

[0095] It should be noted that this application does not limit the material and thickness of the transparent substrate; for example, the material of the transparent substrate includes cellulose triacetate (TAC), polymethyl methacrylate (PMMA) or polyethylene terephthalate (PET), etc.

[0096] This application provides a method for preparing the above-mentioned anti-glare optical film, the method comprising: coating the anti-glare coating liquid provided above onto the surface of a transparent substrate, and then sequentially performing heat curing and UV curing; wherein the anti-glare coating liquid contains a photoinitiator.

[0097] In some optional embodiments of this application, the heat curing temperature is 60°C to 80°C, and the heat curing time is 2 min to 4 min.

[0098] In some optional embodiments of this application, the UV curing energy is 200 mJ / cm². 2 ~600mJ / cm 2 .

[0099] This application also provides a polarizer, which includes the anti-glare coating provided above, the anti-glare coating prepared by the method of preparing the anti-glare coating provided above, the anti-glare optical film provided above, or the anti-glare optical film prepared by the method of preparing the anti-glare optical film provided above.

[0100] The organic anti-glare particles in the polarizer provided in this application are effectively encapsulated and isolated, which makes the organic anti-glare particles less susceptible to interference during the use of the polarizer. This not only allows the organic anti-glare particles to fully exert their anti-glare and high-definition effects, but also improves the haze reduction problem that occurs when using polarizers with organic anti-glare particles, so that the polarizer not only has high definition and good anti-glare effect, but also does not easily reduce haze.

[0101] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below. Where specific conditions are not specified in the embodiments, conventional conditions or conditions recommended by the manufacturer shall apply. Reagents or instruments whose manufacturers are not specified are all conventional products that can be purchased commercially.

[0102] Example 1

[0103] This embodiment provides an anti-glare optical film, which includes a transparent TAC film and an anti-glare coating covering the surface of the TAC film; the thickness of the TAC film is 40 μm, and the thickness of the anti-glare coating is 4 μm; wherein, the method for preparing the anti-glare optical film includes the following steps:

[0104] (1) Silica sol (denoted as the first inorganic sol), PMMA particles (i.e., organic anti-glare particles), and propylene glycol methyl ether (i.e., non-alcohol solvent) in a mass ratio of 2:1:5 were mixed and stirred at 1500 rpm for 60 min to obtain the first system. Silica sol (denoted as the second inorganic sol), isopropanol (i.e., alcohol solvent), and polyether-modified polydimethylsiloxane (i.e., polyether siloxane) were added to the first system and stirred and mixed at 1000 rpm for 45 min to obtain the anti-glare system.

[0105] The mass ratio of the second inorganic sol, isopropanol, polyether-modified polydimethylsiloxane, and organic anti-glare particles is 10:5:0.04:1.

[0106] (2) The anti-glare system obtained in step (1) with a mass ratio of 40:12:4:2:1.2:30, the nonfunctional polyurethane acrylic resin (i.e., acrylic resin), pentaerythritol hexaacrylate (i.e., acrylate monomer), trimethylolpropane triacrylate (i.e., acrylate monomer), IGM's PI-184 (i.e., photoinitiator) and the dispersion solvent (composed of 15 parts by weight of methyl isobutyl ketone, 6 parts by weight of butanone, 3 parts by weight of toluene and 6 parts by weight of propylene glycol methyl ether) are mixed and stirred at 1200 rpm for 120 min to obtain the anti-glare coating liquid.

[0107] (3) Apply the anti-glare coating obtained in step (2) to the surface of the TAC film. After coating, heat and cure at 80°C for 2 minutes, then apply UV radiation with an energy of 300 mJ / cm. 2 UV curing is performed.

[0108] Example 2

[0109] This embodiment provides an anti-glare optical film. The difference between this embodiment and Embodiment 1 is that the first inorganic sol in Embodiment 1 is replaced with aluminum sol.

[0110] Example 3

[0111] This embodiment provides an anti-glare optical film. The difference between this embodiment and Embodiment 1 is that the second inorganic sol in Embodiment 1 is replaced with aluminum sol.

[0112] Example 4

[0113] This embodiment provides an anti-glare optical film. The difference between this embodiment and Embodiment 1 is that propylene glycol methyl ether (i.e., a non-alcohol solvent) in Embodiment 1 is replaced with butyl acetate.

[0114] Example 5

[0115] This embodiment provides an anti-glare optical film. The difference between this embodiment and Embodiment 1 is that the PMMA particles in Embodiment 1 are replaced with polystyrene anti-glare particles.

[0116] Example 6

[0117] This embodiment provides an anti-glare optical film. The difference between this embodiment and Embodiment 1 is that isopropanol in Embodiment 1 is replaced with propylene glycol.

[0118] Example 7

[0119] This embodiment provides an anti-glare optical film. The difference between this embodiment and Embodiment 1 is that the polyether-modified polydimethylsiloxane in Embodiment 1 is replaced with polyether-modified heptamethyltrisiloxane.

[0120] Example 8

[0121] This embodiment provides an anti-glare optical film. The difference between this embodiment and Embodiment 1 is that the nine-functional polyurethane acrylic resin in Embodiment 1 is replaced with a six-functional polyurethane acrylic resin.

[0122] Example 9

[0123] This embodiment provides an anti-glare optical film. The difference between this embodiment and embodiment 1 is that in step (1) of this embodiment, the mass ratio of the first inorganic sol to the organic anti-glare particles is 5:1.

[0124] In step (2) of this embodiment, the mass ratio of the nine-functional polyurethane acrylic resin (i.e., acrylic resin), pentaerythritol hexaacrylate (i.e., acrylate monomer), trimethylolpropane triacrylate (i.e., acrylate monomer), IGM's PI-184 (i.e., photoinitiator), and the dispersion solvent (composed of 15 parts by weight of methyl isobutyl ketone, 6 parts by weight of butanone, 3 parts by weight of toluene, and 6 parts by weight of propylene glycol methyl ether) is the same as in Example 1.

[0125] Furthermore, the mass percentage of organic anti-glare particles in the anti-glare coating is the same as in Example 1.

[0126] Example 10

[0127] This embodiment provides an anti-glare optical film. The difference between this embodiment and embodiment 1 is that in step (1) of this embodiment, the mass ratio of the second inorganic sol to the organic anti-glare particles is 20:1.

[0128] In step (2) of this embodiment, the mass ratio of the nine-functional polyurethane acrylic resin (i.e., acrylic resin), pentaerythritol hexaacrylate (i.e., acrylate monomer), trimethylolpropane triacrylate (i.e., acrylate monomer), IGM's PI-184 (i.e., photoinitiator), and the dispersion solvent (composed of 15 parts by weight of methyl isobutyl ketone, 6 parts by weight of butanone, 3 parts by weight of toluene, and 6 parts by weight of propylene glycol methyl ether) is the same as in Example 1.

[0129] Furthermore, the mass percentage of organic anti-glare particles in the anti-glare coating is the same as in Example 1.

[0130] Example 11

[0131] This embodiment provides an anti-glare optical film. The difference between this embodiment and embodiment 1 is that in step (1) of this embodiment, the mass ratio of isopropanol to organic anti-glare particles is 10:1.

[0132] In step (2) of this embodiment, the mass ratio of the nine-functional polyurethane acrylic resin (i.e., acrylic resin), pentaerythritol hexaacrylate (i.e., acrylate monomer), trimethylolpropane triacrylate (i.e., acrylate monomer), IGM's PI-184 (i.e., photoinitiator), and the dispersion solvent (composed of 15 parts by weight of methyl isobutyl ketone, 6 parts by weight of butanone, 3 parts by weight of toluene, and 6 parts by weight of propylene glycol methyl ether) is the same as in Example 1.

[0133] Furthermore, the mass percentage of organic anti-glare particles in the anti-glare coating is the same as in Example 1.

[0134] Example 12

[0135] This embodiment provides an anti-glare optical film. The difference between this embodiment and embodiment 1 is that in step (1) of this embodiment, the mass ratio of polyether-modified polydimethylsiloxane to organic anti-glare particles is 0.1:1.

[0136] In step (2) of this embodiment, the mass ratio of the nine-functional polyurethane acrylic resin (i.e., acrylic resin), pentaerythritol hexaacrylate (i.e., acrylate monomer), trimethylolpropane triacrylate (i.e., acrylate monomer), IGM's PI-184 (i.e., photoinitiator), and the dispersion solvent (composed of 15 parts by weight of methyl isobutyl ketone, 6 parts by weight of butanone, 3 parts by weight of toluene, and 6 parts by weight of propylene glycol methyl ether) is the same as in Example 1.

[0137] Furthermore, the mass percentage of organic anti-glare particles in the anti-glare coating is the same as in Example 1.

[0138] Example 13

[0139] This embodiment provides an anti-glare optical film. The difference between this embodiment and embodiment 1 is that in step (1) of this embodiment, the mass ratio of propylene glycol methyl ether (i.e., non-alcohol solvent) to organic anti-glare particles is 10:1.

[0140] In step (2) of this embodiment, the mass ratio of the nine-functional polyurethane acrylic resin (i.e., acrylic resin), pentaerythritol hexaacrylate (i.e., acrylate monomer), trimethylolpropane triacrylate (i.e., acrylate monomer), IGM's PI-184 (i.e., photoinitiator), and the dispersion solvent (composed of 15 parts by weight of methyl isobutyl ketone, 6 parts by weight of butanone, 3 parts by weight of toluene, and 6 parts by weight of propylene glycol methyl ether) is the same as in Example 1.

[0141] Furthermore, the mass percentage of organic anti-glare particles in the anti-glare coating is the same as in Example 1.

[0142] Comparative Example 1

[0143] This comparative example provides an anti-glare optical film. The difference between this comparative example and Example 1 is that step (1) is different. In this comparative example, a second inorganic sol is not used. Step (1) of this comparative example is as follows:

[0144] A first system was obtained by mixing silica sol (denoted as the first inorganic sol), PMMA particles (i.e., organic anti-glare particles), and propylene glycol methyl ether (i.e., non-alcohol solvent) in a mass ratio of 12:1:5 at 1500 rpm for 60 min. Isopropanol (i.e., alcohol solvent) and polyether-modified polydimethylsiloxane (i.e., polyether siloxane) were added to the first system and stirred at 1000 rpm for 45 min.

[0145] The mass ratio of isopropanol, polyether siloxane, and organic anti-glare particles is 5:0.04:1.

[0146] In step (2) of this comparative example, the mass ratio of the nine-functional polyurethane acrylate resin (i.e., acrylate resin), pentaerythritol hexaacrylate (i.e., acrylate monomer), trimethylolpropane triacrylate (i.e., acrylate monomer), IGM's PI-184 (i.e., photoinitiator), and the dispersion solvent (composed of 15 parts by weight of methyl isobutyl ketone, 6 parts by weight of butanone, 3 parts by weight of toluene, and 6 parts by weight of propylene glycol methyl ether) is the same as in Example 1.

[0147] Furthermore, the mass percentage of organic anti-glare particles in the anti-glare coating is the same as in Example 1.

[0148] Comparative Example 2

[0149] This comparative example provides an anti-glare optical film. The difference between this comparative example and Example 1 is that step (1) is different. The first inorganic sol is not used in this comparative example. Step (1) of this comparative example is as follows:

[0150] PMMA particles (i.e., organic anti-glare particles), silica sol (referred to as the second inorganic sol), propylene glycol methyl ether (i.e., non-alcohol solvent), isopropanol (i.e., alcohol solvent), and polyether-modified polydimethylsiloxane (i.e., polyether siloxane) were stirred and mixed at 1500 rpm for 105 min to obtain the anti-glare system.

[0151] The mass ratio of the second inorganic sol, propylene glycol methyl ether, isopropanol, polyether siloxane, and organic anti-glare particles is 12:5:5:0.04:1.

[0152] In step (2) of this comparative example, the mass ratio of the nine-functional polyurethane acrylate resin (i.e., acrylate resin), pentaerythritol hexaacrylate (i.e., acrylate monomer), trimethylolpropane triacrylate (i.e., acrylate monomer), IGM's PI-184 (i.e., photoinitiator), and the dispersion solvent (composed of 15 parts by weight of methyl isobutyl ketone, 6 parts by weight of butanone, 3 parts by weight of toluene, and 6 parts by weight of propylene glycol methyl ether) is the same as in Example 1.

[0153] Furthermore, the mass percentage of organic anti-glare particles in the anti-glare coating is the same as in Example 1.

[0154] Comparative Example 3

[0155] This comparative example provides an anti-glare optical film. The difference between this comparative example and Example 1 is that step (1) is different. Polyether siloxane is not used in this comparative example. Step (1) of this comparative example is as follows:

[0156] A mixture of silica sol (denoted as the first inorganic sol), PMMA particles (i.e., organic anti-glare particles), and propylene glycol methyl ether (i.e., a non-alcoholic solvent) in a mass ratio of 2:1:5 was stirred at 1500 rpm for 60 min to obtain the first system. Silica sol (denoted as the second inorganic sol) and isopropanol were then added to the first system, and the mixture was stirred at 1000 rpm for 45 min to obtain the anti-glare system.

[0157] The mass ratio of the second inorganic sol, isopropanol, and organic anti-glare particles is 10:5.04:1.

[0158] In step (2) of this comparative example, the mass ratio of the nine-functional polyurethane acrylate resin (i.e., acrylate resin), pentaerythritol hexaacrylate (i.e., acrylate monomer), trimethylolpropane triacrylate (i.e., acrylate monomer), IGM's PI-184 (i.e., photoinitiator), and the dispersion solvent (composed of 15 parts by weight of methyl isobutyl ketone, 6 parts by weight of butanone, 3 parts by weight of toluene, and 6 parts by weight of propylene glycol methyl ether) is the same as in Example 1.

[0159] Furthermore, the mass percentage of organic anti-glare particles in the anti-glare coating is the same as in Example 1.

[0160] Comparative Example 4

[0161] This comparative example provides an anti-glare optical film. The difference between this comparative example and Example 1 is that step (1) is different. In this comparative example, propylene glycol methyl ether is used instead of isopropanol.

[0162] Comparative Example 5

[0163] This comparative example provides an anti-glare optical film. The difference between this comparative example and Example 1 is that step (1) is different. Isopropanol is used instead of propylene glycol methyl ether in this comparative example.

[0164] Comparative Example 6

[0165] This comparative example provides an anti-glare optical film. The difference between this comparative example and Example 1 is that step (1) is different. In this comparative example, silicon dioxide anti-glare particles are used instead of PMMA particles.

[0166] Comparative Example 7

[0167] This comparative example provides an anti-glare optical film. The difference between this comparative example and Example 1 is that the method for preparing the anti-glare optical film is different. The method for preparing the anti-glare optical film in this comparative example includes the following steps:

[0168] (1) The anti-glare coating liquid is obtained by mixing and stirring the silica sol, PMMA particles (i.e., organic anti-glare particles), propylene glycol methyl ether (i.e., non-alcohol solvent), isopropanol (i.e., alcohol solvent), polyether modified polydimethylsiloxane (i.e., polyether siloxane), nonfunctional polyurethane acrylic resin (i.e., acrylic resin), pentaerythritol hexaacrylate (i.e. acrylate monomer), trimethylolpropane triacrylate (i.e. acrylate monomer), IGM's PI-184 (i.e. photoinitiator) and dispersion solvent (15 parts by weight of methyl isobutyl ketone, 6 parts by weight of butanone, 3 parts by weight of toluene and 6 parts by weight of propylene glycol methyl ether) at 1500 rpm for 225 min.

[0169] The mass ratio of the nine-functional polyurethane acrylic resin (i.e., acrylic resin), pentaerythritol hexaacrylate (i.e., acrylate monomer), trimethylolpropane triacrylate (i.e., acrylate monomer), IGM's PI-184 (i.e., photoinitiator), and the dispersion solvent (composed of 15 parts by weight of methyl isobutyl ketone, 6 parts by weight of butanone, 3 parts by weight of toluene, and 6 parts by weight of propylene glycol methyl ether) is the same as in Example 1.

[0170] Furthermore, the mass ratio of silica sol, propylene glycol methyl ether, isopropanol, polyether-modified polydimethylsiloxane, and organic anti-glare particles is 12:5:5:0.04:1, and the mass percentage of organic anti-glare particles in the anti-glare coating is consistent with that in Example 1.

[0171] (2) Apply the anti-glare coating obtained in step (1) to the surface of the TAC film. After coating, heat and cure at 80°C for 2 minutes, then apply UV radiation with an energy of 300 mJ / cm. 2 UV curing is performed.

[0172] Experimental Example

[0173] The optical performance of the anti-glare optical films provided in Examples 1-13 and Comparative Examples 1-7 was tested, and the test results are shown in Table 1.

[0174] The optical performance test parameters include transmittance, sharpness, and haze. Transmittance and haze are tested according to GB_T2410-2008; sharpness is tested according to JIS K7374. A transmittance ≥89% indicates that the transmittance meets the requirements, and a sharpness >100% indicates that the sharpness meets the requirements. For the haze test, the anti-glare optical film is placed at 80℃ for different times and then allowed to cool naturally to room temperature before the haze value is measured (simulating an accelerated test of the anti-glare optical film at room temperature).

[0175] Table 1

[0176]

[0177]

[0178] As can be seen from Table 1, the transmittance and clarity of the anti-glare optical films in Examples 1 to 13 are all qualified, and the haze of the anti-glare optical films in Examples 1 to 13 does not decrease significantly after being placed for a long time.

[0179] Specifically, when the components in the anti-glare coating formulations of Examples 1 to 8 are replaced with the same type of substance, such as when silica sol is replaced with aluminum sol, propylene glycol methyl ether is replaced with butyl acetate, PMMA anti-glare particles are replaced with polystyrene anti-glare particles, isopropanol is replaced with propylene glycol, polyether-modified polydimethylsiloxane is replaced with polyether-modified heptamethyltrisiloxane, or nine-functional polyurethane acrylic resin is replaced with six-functional polyurethane acrylic resin, the transmittance and clarity of the obtained anti-glare optical film are both qualified, and the haze of the obtained anti-glare optical film does not decrease significantly after being placed for a long time.

[0180] As can be seen from Examples 1 and 9-13, by appropriately adjusting the amount of each component in the anti-glare coating formulation, the transmittance and clarity of the obtained anti-glare optical film are both qualified, and the haze of the obtained anti-glare optical film does not decrease significantly after being left for a long time.

[0181] A comparison of Comparative Examples 1-5, Comparative Example 7, and Example 1 shows that when "a first inorganic sol, organic anti-glare particles, and a non-alcohol solvent are mixed to form a first system, but a second inorganic sol, polyether siloxane, or alcohol solvent is not used to mix with the aforementioned first system", or when "the first inorganic sol is not used to mix with the organic anti-glare particles and the non-alcohol solvent", or when "a non-alcohol solvent is not used to mix with the organic anti-glare particles and the first inorganic sol", or when "the components in the anti-glare coating are directly mixed to prepare the anti-glare coating", the haze of the prepared anti-glare optical film will decrease significantly after a long period of storage. This indicates that in order to achieve the effect of effectively encapsulating and isolating the organic anti-glare particles and solve the problem of haze decrease during long-term storage of the anti-glare optical film prepared using organic anti-glare particles, it is necessary to use an inorganic sol to encapsulate the anti-glare particles twice. The first encapsulation process requires the use of a non-alcohol solvent, and the second encapsulation process requires the simultaneous use of an alcohol solvent and a polyether siloxane.

[0182] As can be seen from Comparative Example 6 and Example 1, the anti-glare optical film prepared using inorganic anti-glare particles has low clarity and does not meet the clarity requirements.

[0183] In summary, the method for preparing the anti-glare coating liquid provided in this application allows the organic anti-glare particles to be effectively encapsulated and isolated by a second inorganic sol. The organic anti-glare particles in the anti-glare coating obtained by curing and molding with this anti-glare coating liquid are effectively encapsulated and isolated. This not only allows the organic anti-glare particles to fully exert their anti-glare and high-definition effects, but also improves the haze reduction problem that easily occurs in anti-glare coatings using organic anti-glare particles. Therefore, the anti-glare coating not only has high definition and good anti-glare effect, but also does not easily experience haze reduction.

[0184] The embodiments described above are some, but not all, of the embodiments of this application. The detailed description of the embodiments of this application is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

Claims

1. A method for preparing an anti-glare coating liquid, characterized in that, include: The mixture containing acrylic resin and an anti-glare system is stirred, the mixture comprising the following components by weight: 35-60 parts of the anti-glare system, 10-20 parts of the acrylic resin and 20-50 parts of the dispersion solvent. The method for preparing the anti-glare system includes: mixing a first inorganic sol, organic anti-glare particles, and a non-alcohol solvent to obtain a first system; then mixing the first system, a second inorganic sol, an alcohol solvent, and a polyether siloxane, wherein the first inorganic sol and the second inorganic sol are each independently selected from at least one of nano-sized silica sol, nano-sized aluminum sol, and nano-sized zirconium sol, and the organic anti-glare particles are selected from at least one of acrylic resin, polystyrene resin, styrene-acrylic copolymer, and polyethylene resin.

2. The method for preparing the anti-glare coating liquid according to claim 1, characterized in that, The non-alcohol solvent is selected from at least one of ester solvents, ether solvents, ketone solvents, and benzene solvents; Or / and, the alcohol solvent is selected from at least one of isopropanol, propylene glycol, and cyclopentanol; Or / and, the polyether siloxane is selected from at least one of polyether-modified polydimethylsiloxane and polyether-modified heptamethyltrisiloxane; Or / and, the acrylic resin is selected from at least one of polyurethane acrylic resin, silicone acrylic resin and polyester acrylic resin.

3. The method for preparing the anti-glare coating liquid according to claim 1, characterized in that, The mass ratio of the first inorganic sol to the organic anti-glare particles is (0.5~5):1; Or / and, the mass ratio of the non-alcoholic solvent to the organic anti-glare particles is (5~10):1; Or / and, the mass ratio of the second inorganic sol to the organic anti-glare particles is (10~20):1; Or / and, the mass ratio of the alcohol solvent to the organic anti-glare particles is (5~10):1; Or / and, the mass ratio of the polyether siloxane to the organic anti-glare particles is (0.01~0.1):

1.

4. The method for preparing the anti-glare coating liquid according to claim 1, characterized in that, The first inorganic sol, the organic anti-glare particles, and the non-alcohol solvent are mixed by a first stirring and mixing method, the stirring and mixing speed is 500 rpm to 2000 rpm, and the stirring and mixing time is 30 min to 120 min. Or / and, the first system, the second inorganic sol, the alcohol solvent and the polyether siloxane are mixed by a second stirring, the stirring speed of the second stirring is 500 rpm to 1000 rpm and the stirring time is 30 min to 60 min.

5. The method for preparing the anti-glare coating liquid according to any one of claims 1 to 4, characterized in that, The mixture also includes 0.5 to 2 parts of photoinitiator; And / or, the mixture further includes 0.01 to 0.15 parts of a leveling agent; And / or, the mixture further includes 4 to 10 parts of acrylate monomer; And / or, the dispersing solvent is selected from at least one of ethyl acetate, butyl acetate, toluene, xylene, acetone, butanone, cyclohexanone, methyl isobutyl ketone, propylene glycol methyl ether, propylene glycol ethyl ether, ethylene glycol butyl ether, propylene glycol butyl ether, butanediol butyl ether, and dipropylene glycol methyl ether.

6. An anti-glare coating liquid, characterized in that, The anti-glare coating is prepared using the method described in any one of claims 1 to 5.

7. An anti-glare coating, characterized in that, The anti-glare coating is the cured product of the anti-glare coating liquid according to claim 6.

8. An anti-glare optical film, characterized in that, include: Transparent substrate and the anti-glare coating as described in claim 7; The anti-glare coating covers the surface of the transparent substrate.

9. A method for preparing an anti-glare optical film, characterized in that, include: The anti-glare coating liquid of claim 6 is applied to the surface of a transparent substrate, and then subjected to heat curing and UV curing in sequence; wherein the anti-glare coating liquid contains a photoinitiator.

10. The method for preparing the anti-glare optical film according to claim 9, characterized in that, The temperature for heat curing is 60℃~80℃, and the time for heat curing is 2min~4min; And / or, the UV curing energy is 200 mJ / cm². 2 ~600mJ / cm 2 .

11. A polarizer, characterized in that, The polarizer includes the anti-glare coating of claim 7, the anti-glare optical film of claim 8, or the anti-glare optical film prepared by the method of the anti-glare optical film of claim 9 or 10.

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