Anti-dazzle film and preparation method thereof

Abstract

The invention provides an anti-dazzle film and a preparation method thereof. The anti-dazzle film comprises a base material; the anti-dazzle coating is located on one side of the base material, and the surface of the side, away from the base material, of the anti-dazzle coating is in a concave-convex shape; the wear-resistant layer is located on the side, away from the base material, of the anti-dazzle coating, and the wear-resistant layer is made of aluminum oxide. According to the anti-dazzle film and the preparation method thereof provided by the invention, the wear resistance of the anti-dazzle film can be effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular, relates to an anti-glare film and a preparation method thereof. BACKGROUND

[0002] Anti-glare (AG) is of great significance to protect eyes and reduce eye fatigue. Some high-end small and medium-sized glass covers currently have anti-glare function, such as vehicle-mounted screens, notebook computers, and tablets. The preparation method of anti-glare glass with anti-glare function is generally to use chemical etching to make the surface of the glass form sub-micro particles through chemical reaction to achieve the effect of anti-glare. This method can meet the optical indicators such as anti-glare while retaining the original hardness and wear resistance of the glass. However, the equipment and material costs of this method are high, and it needs to go through a complex process flow such as pasting a protective layer, chemical fogging, polishing, cleaning, and removing the protective layer. Another preparation method of anti-glare glass is to prepare a layer of resin material doped with anti-glare particles on the surface of the glass by spraying process, which can also achieve the effect of anti-glare. This method is simple in process and low in cost, but the wear resistance is greatly reduced. The way to improve the wear resistance of the anti-glare coating is generally to dope aluminum oxide and other wear-resistant particles in the resin material, but the wear-resistant particles dispersed on the surface of the resin have limited effect on improving the wear resistance. SUMMARY

[0003] The present application provides an anti-glare film and a preparation method thereof, which can effectively improve the wear resistance of the anti-glare film.

[0004] The present application provides an anti-glare film, comprising:

[0005] a substrate;

[0006] an anti-glare coating on one side of the substrate, the surface of the anti-glare coating away from the substrate having a concave-convex shape;

[0007] a wear-resistant layer on the side of the anti-glare coating away from the substrate, wherein the material of the wear-resistant layer is aluminum oxide.

[0008] In an embodiment, the wear-resistant layer and the anti-glare coating are connected by chemical adsorption.

[0009] In an embodiment, the wear-resistant layer comprises at least one layer of aluminum oxide film, wherein the aluminum oxide film is a monatomic film.

[0010] In an embodiment, the thickness of the wear-resistant layer is 10-100 nm.

[0011] In an embodiment, the anti-glare film further comprises a protective layer on the side of the wear-resistant layer away from the anti-glare coating.

[0012] In an embodiment, the raw materials of the anti-glare coating include polysilsesquioxane, epoxy diluent, photoinitiator, microparticles and solvent;

[0013] In the raw materials of the anti-glare coating, the mass ratio of the polysilsesquioxane to the epoxy diluent ranges from 9:1 to 1:9;

[0014] The total mass of the polysilsesquioxane and the epoxy diluent is W0, the mass of the solvent is W r , the mass of the photoinitiator is (1% to 4%) W0, and the mass of the microparticles is (0.1% to 30%) W0. r r r

[0015] The total mass of the polysilsesquioxane and the epoxy diluent is W0, the mass of the solvent is W r , the mass of the photoinitiator is (1% to 4%) W0, and the mass of the microparticles is (0.1% to 30%) W0. r r r

[0016] In an embodiment, the raw materials of the anti-glare coating include polysilsesquioxane, photoinitiator, microparticles and solvent;

[0017] In the raw materials of the anti-glare coating, the mass of the polysilsesquioxane is W1, the mass of the solvent is W r , the mass of the photoinitiator is (1% to 4%) W1, and the mass of the microparticles is (0.1% to 30%) W1. r

[0018] The total mass of the polysilsesquioxane and the epoxy diluent is W0, the mass of the solvent is W r , the mass of the photoinitiator is (1% to 4%) W0, and the mass of the microparticles is (0.1% to 30%) W0. r r r

[0019] In an embodiment, the raw materials of the anti-glare coating include epoxy diluent, photoinitiator, microparticles and solvent;

[0020] In the raw materials of the anti-glare coating, the mass of the epoxy diluent is W2, the mass of the solvent is W r , the mass of the photoinitiator is (1% to 4%) W2, and the mass of the microparticles is (0.1% to 30%) W2. r

[0021] The total mass of the polysilsesquioxane and the epoxy diluent is W0, the mass of the solvent is W r , the mass of the photoinitiator is (1% to 4%) W0, and the mass of the microparticles is (0.1% to 30%) W0. r r r

[0022] The application provides a preparation method of an anti-glare film, including:

[0023] providing a substrate;

[0024] forming an anti-glare coating on one side surface of the substrate, the anti-glare coating having a concave-convex shape away from the one side surface of the substrate;

[0025] forming a wear-resistant layer on the side of the anti-glare coating away from the substrate, wherein the material of the wear-resistant layer is aluminum oxide.

[0026] In one embodiment, the step of forming a wear-resistant layer on the side of the anti-glare coating away from the substrate comprises: forming at least one layer of aluminum oxide film on the side of the anti-glare coating away from the substrate by atomic layer deposition.

[0027] The present application provides an anti-glare film and a preparation method thereof, a dense and uniform aluminum oxide wear-resistant layer is formed on the anti-glare coating of the anti-glare film, and the wear-resistant performance of the surface of the anti-glare coating is improved by the whole-surface aluminum oxide wear-resistant layer. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0029] Figure 1 A structural schematic diagram of an anti-glare film provided by an embodiment of the present application is provided.

[0030] Figure 2 A flowchart of atomic layer deposition for preparing an aluminum oxide film provided by an embodiment of the present application is provided.

[0031] Figure 3 A structural schematic diagram of step S1 of a preparation method of an anti-glare film provided by an embodiment of the present application is provided.

[0032] Figure 4 A structural schematic diagram of step S2 of a preparation method of an anti-glare film provided by an embodiment of the present application is provided.

[0033] Figure 5 A structural schematic diagram of step S3 of a preparation method of an anti-glare film provided by an embodiment of the present application is provided. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0035] In the description of the present application, it should be understood that the terms "upper", "lower", and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0036] The present application can repeatedly refer to numbers and / or letters in different embodiments, and such repetition is for the purpose of simplification and clarity, and in itself does not indicate the relationship between the various embodiments and / or arrangements discussed.

[0037] As Figure 1 shown, the present application provides an anti-glare film 100, comprising a substrate 110, an anti-glare coating 120 and a wear-resistant layer 130 which are sequentially stacked.

[0038] The substrate 110 can be a rigid substrate or a flexible substrate, for example, the substrate 110 can be glass or polyimide, etc., which is not specifically limited here.

[0039] The anti-glare coating 120 is formed on one side surface of the substrate 110, and the anti-glare coating 120 has a concave-convex shape away from the one side surface of the substrate 110. These concave-convex shapes can cause external light to scatter, thereby achieving the effect of preventing the visibility of screen display content from being reduced due to the reflection or reflection of external light. That is, the anti-glare coating 120 scatters external light by using the concave-convex shape of its surface, thereby achieving the anti-glare function. The thickness of the anti-glare coating 120 is 3-20 μm, preferably, the thickness of the anti-glare coating 120 is 10-15 μm. If the film thickness of the anti-glare coating 120 is too low, the anti-glare effect is poor; if the thickness of the anti-glare coating 120 is too thick, it will increase the cost.

[0040] The wear-resistant layer 130 is located on the side of the anti-glare coating 120 away from the substrate 110 and covers the anti-glare coating 120 entirely, has a concave-convex shape consistent with the surface concave-convex topography of the anti-glare coating 120, and the material of the wear-resistant layer 130 is alumina. Since alumina is an inorganic substance with high hardness, has good wear resistance, and has characteristics such as high light transmittance, corrosion resistance, and structural diversity, it can be used as the wear-resistant layer 130 on the anti-glare coating 120 to improve the wear resistance of the surface of the anti-glare coating 120. At the same time, the wear-resistant layer 130 of the present application is a dense and uniform film layer formed along the surface concave-convex topography of the anti-glare coating 120, and the wear-resistant film layer can more effectively improve the overall wear resistance of the anti-glare coating 120. The thickness of the wear-resistant layer 130 is 10-100 nm, and preferably, the thickness of the wear-resistant layer 130 is 20-50 nm. If the film thickness of the wear-resistant layer 130 is too low, the wear resistance is poor; if the thickness of the wear-resistant layer 130 is too thick, the adhesion to the anti-glare coating 120 decreases, and the cost increases.

[0041] Further, the anti-glare film 100 can further include a protective layer 140 located on the side of the wear-resistant layer 130 away from the anti-glare coating 120 and covering the wear-resistant layer 130 entirely, and having a concave-convex shape consistent with the surface concave-convex topography of the wear-resistant layer 130. The material of the protective layer 140 can be perfluoropolyether silane, polydimethylsiloxane (PDMS), etc. The protective layer 140 can reduce the surface friction coefficient of the wear-resistant layer 130 and further improve the wear resistance of the surface of the anti-glare coating 120. At the same time, the protective layer 140 can also improve the water droplet angle of the film layer surface, the liquid droplets are not easy to adhere to the film layer surface, and the overall use effect of the product can be further improved. The thickness of the protective layer 140 is 10-100 nm, and preferably, the thickness of the protective layer 140 is 20-50 nm. If the film thickness of the protective layer 140 is too low, the wear resistance is poor; if the thickness of the protective layer 140 is too thick, the adhesion to the wear-resistant layer 130 decreases, and the cost increases.

[0042] In the present application, the raw materials of the anti-glare coating 120 can include at least one of polysiloxane and epoxy diluent, and photoinitiator, microparticles, solvent and additives, etc. After the above materials are mixed in a certain proportion, they are coated on the surface of the substrate 110, and then subjected to UV light irradiation to cure the anti-glare coating material to form the anti-glare coating 120 with high hardness on the surface of the substrate 110.

[0043] In an embodiment, the raw materials of the anti-glare coating 120 include polysilsesquioxane, epoxy diluent, photoinitiator, microparticles, and solvent. In the raw materials of the anti-glare coating 120, the mass ratio of the polysilsesquioxane to the epoxy diluent ranges from 9:1 to 1:9; the total mass of the polysilsesquioxane and the epoxy diluent is W0, the mass of the solvent is W r , and the mass ratio of W r to W0 ranges from 1:9 to 7:3; the mass of the photoinitiator is (1% to 4%) W0, and the mass of the microparticles is (0.1% to 30%) W0.

[0044] In an embodiment, the raw materials of the anti-glare coating 120 include polysilsesquioxane, photoinitiator, microparticles, and solvent. In the raw materials of the anti-glare coating 120, the mass of the polysilsesquioxane is W1, the mass of the solvent is W r , and the mass ratio of W r to W1 ranges from 1:9 to 7:3; the mass of the photoinitiator is (1% to 4%) W1, and the mass of the microparticles is (0.1% to 30%) W1.

[0045] In an embodiment, the raw materials of the anti-glare coating 120 include epoxy diluent, photoinitiator, microparticles, and solvent. In the raw materials of the anti-glare coating 120, the mass of the epoxy diluent is W2, the mass of the solvent is W r , and the mass ratio of W r to W2 ranges from 1:9 to 7:3; the mass of the photoinitiator is (1% to 4%) W2, and the mass of the microparticles is (0.1% to 30%) W2.

[0046] In the raw materials of the anti-glare coating 120, if the proportion of the solvent is too high, the viscosity of the anti-glare coating material is low, and a thick film cannot be coated; if the proportion of the solvent is too low, the viscosity of the anti-glare coating material is too high, affecting the flatness and smoothness of the film.

[0047] In the raw materials of the anti-glare coating 120, if the content of the microparticles is too low, no anti-glare effect is achieved; if the content of the microparticles is too high, the clarity of the anti-glare film 100 is reduced. Specifically, the amount of the microparticles can be designed according to the requirements of the anti-glare effect of the anti-glare film 100 in the process, the microparticle material used, and the particle size.

[0048] The polysilsesquioxane is a polysilsesquioxane with an epoxy group, and the molecular structure shape can be one or more of a cage shape, a ladder shape, and a random shape. The polysilsesquioxane is an anti-glare coating base material with high hardness characteristics after curing.

[0049] The epoxy diluent includes one or more of glycidyl ether, glycidyl ester, glycidyl amine, and alicyclic epoxy resin, for example, the epoxy diluent can be at least one of bisphenol A diglycidyl ether, hydrogenated bisphenol A diglycidyl ether, bisphenol F monoglycidyl ether, bisphenol hexafluoroacetone diglycidyl ether, 3,4-epoxycyclohexylmethyl-3',4'-epoxycyclohexane carboxylate, 3,4-epoxycyclohexylmethyl 3,4-epoxycyclohexyl carboxylate, 2-(3,4-epoxy cyclohexyl) ethyl trimethoxysilane, 2-(3,4-epoxy cyclohexyl) ethyl triethoxysilane, and 2-(3,4-epoxy cyclohexyl) ethyl tripropoxysilane, more preferably, the epoxy diluent can be 3,4-epoxycyclohexylmethyl 3,4-epoxycyclohexyl carboxylate, 2-(3,4-epoxy cyclohexyl) ethyl trimethoxysilane, etc. Since the hardness of the simple polysilsesquioxane is high, but the rigidity is too large after curing and is easy to break, the polysilsesquioxane can be used in combination with the epoxy diluent, and the epoxy diluent reacts with the polysilsesquioxane during the curing process, which can increase the flexibility of the anti-glare coating 120 after curing, so that the anti-glare coating 120 has more optimal comprehensive mechanical properties.

[0050] The photoinitiator can be a cationic initiator, for example, a diaryliodonium salt, a triarylsulfonium salt, etc. that satisfies the absorption wavelength.

[0051] The solvent can be at least one of methyl isobutyl ketone, methyl propyl ketone, methyl isopropyl ketone, ethyl acetate, acetone, cyclohexanone, 4-methyl-2-pentanone, diethyl ether, propylene glycol methyl ether, methanol, butanol, isopropyl alcohol, isobutyl alcohol, propylene glycol methyl ether acetate, chloroform, dichloromethane, n-hexane, or toluene, etc. The solvent is used to adjust the viscosity of the anti-glare coating material, so as to facilitate the coating film.

[0052] The microparticles can be inorganic particles, for example, SiO2, TiO2, ZrO2, etc., or organic particles, for example, polystyrene (PS), polymethyl methacrylate (PMMA), etc. The microparticles are doped in the raw material of the anti-glare coating 120, which can act as anti-glare particles, so that the surface of the anti-glare coating 120 has a concave-convex shape, forms a rough surface, and increases the anti-glare performance of the anti-glare coating 120.

[0053] The additive, for example, can be a leveling agent, a defoaming agent, a toughening agent, etc., and can be added in an appropriate amount according to the actual process requirements.

[0054] In an embodiment, the anti-glare coating 120 can be formed by an atomic layer deposition (ALD) method. The ALD process can deposit substances on the surface of a substrate in the form of a monatomic film layer by layer, and the formed thin film can be uniformly and densely arranged along the surface topography of the substrate. The ALD method can be used to form a wear-resistant layer 130 on the concave-convex surface of the anti-glare coating 120, which is dense, uniform, and has excellent performance. The wear-resistant layer 130 and the anti-glare coating 120 are connected by chemical adsorption, which is beneficial to improve the adhesion between the wear-resistant layer 130 and the anti-glare coating 120, and further improve the wear resistance of the surface of the anti-glare coating 120.

[0055] As shown in Figure 2 , a flowchart for preparing an aluminum oxide thin film by atomic layer deposition is provided in an embodiment of the present application. The atomic layer deposition process is performed by alternating reaction cycles of trimethylaluminum (TMA) (Al(CH3)3) and water (H2O). At least one layer of aluminum oxide thin film is deposited on the side surface of the anti-glare coating 120 away from the substrate 110, and the aluminum oxide thin film constitutes the wear-resistant layer 130. Specifically, as shown in Figure 2 , in the atomic layer deposition process, in the first step, the reactant Al(CH3)3 is chemically adsorbed with -OH on the anti-glare coating 120 to generate CH4; in the second step, the reactant Al(CH3)3 is attached to the surface of the anti-glare coating 120 in the form of an atomic layer, and the excess CH4 is removed by gas purging to prevent additional physical adsorption; in the third step, the reactant H2O reacts with the reactant Al(CH3)3 to generate aluminum oxide; in the fourth step, the excess gas (CH4, H2O) is purged to complete the deposition of the first layer of aluminum oxide thin film. The above steps are then cycled to repeatedly deposit multiple times to form multiple layers of aluminum oxide thin film on the anti-glare coating 120 until the desired thickness of the aluminum oxide wear-resistant layer 130 is obtained. That is, the wear-resistant layer 130 can include multiple layers of the aluminum oxide thin film, each layer of the aluminum oxide thin film is a monatomic film formed by ALD, and the thickness of the wear-resistant layer 130 is the sum of the thicknesses of the multiple layers of the aluminum oxide thin film.

[0056] The present application also provides a method for preparing an anti-glare film 100, comprising the steps of:

[0057] S1, as shown in Figure 3 , a substrate 110 is provided. The substrate 110 can be a rigid substrate or a flexible substrate, for example, the substrate 110 can be glass or polyimide, etc., which is not limited here.

[0058] S2, as shown in Figure 4As shown, an anti-glare coating 120 is formed on one side surface of the substrate 110, and the anti-glare coating 120 has a concave-convex shape away from the one side surface of the substrate 110.

[0059] Specifically, first, each component of the raw material of the anti-glare coating 120 is uniformly mixed, for example, mixed by stirring for at least 4 hours or more; then, the mixture is coated on the surface of the substrate 110, for example, by using a slot coating, a wire bar coating, a doctor blade coating, a roll coating method, a groove coating method, or the like; and then, the raw material of the anti-glare coating 120 is cured to form the anti-glare coating 120 by irradiation, for example, by using UV irradiation under a high-pressure mercury lamp, wherein the irradiance is 30 mW-500 mW, preferably 200 mW-300 mW, and the total light exposure is 100 mJ-10000 mJ, preferably 1000 mJ-2000 mJ.

[0060] The raw material of the anti-glare coating 120 includes at least one of polysiloxane and an epoxy diluent, a photoinitiator, microparticles, a solvent, and an additive, etc.

[0061] In an embodiment, the raw material of the anti-glare coating 120 includes polysiloxane, an epoxy diluent, a photoinitiator, microparticles, and a solvent. In the raw material of the anti-glare coating 120, the mass ratio of the polysiloxane to the epoxy diluent is in the range of 9:1-1:9; the total mass of the polysiloxane and the epoxy diluent is W0, the mass of the solvent is W r , and the mass ratio of W r and W0 is in the range of 1:9-7:3; the mass of the photoinitiator is (1%-4%) W0, and the mass of the microparticles is (0.1%-30%) W0.

[0062] In an embodiment, the raw material of the anti-glare coating 120 includes polysiloxane, a photoinitiator, microparticles, and a solvent. In the raw material of the anti-glare coating 120, the mass of the polysiloxane is W1, the mass of the solvent is W r , and the mass ratio of W r and W1 is in the range of 1:9-7:3; the mass of the photoinitiator is (1%-4%) W1, and the mass of the microparticles is (0.1%-30%) W1.

[0063] In an embodiment, the raw material of the anti-glare coating 120 includes an epoxy diluent, a photoinitiator, microparticles, and a solvent. In the raw material of the anti-glare coating 120, the mass of the epoxy diluent is W2, the mass of the solvent is W r , and the mass ratio of W rThe mass ratio of W2 to W2 is in the range of 1:9 to 7:3; the mass of the photoinitiator is (1% to 4%) of W2, and the mass of the microparticles is (0.1% to 30%) of W2.

[0064] The polysilsesquioxane is a polysilsesquioxane containing epoxy groups.

[0065] The epoxy diluent is an epoxy diluent comprising one or more of glycidyl ethers, glycidyl esters, glycidyl amines, and alicyclic epoxy resins. For example, the epoxy diluent may be bisphenol A diglycidyl ether, hydrogenated bisphenol A diglycidyl ether, bisphenol F-glycidyl ether, bisphenol hexafluoroacetone diglycidyl ether, 3,4-epoxycyclohexylmethyl-3',4'-epoxycyclohexane carboxylate, or 3,4-epoxycyclohexylmethyl-3',4'-epoxycyclohexylmethyl-3',4'-epoxycyclohexane carboxylate. The epoxy diluent may be at least one of 3,4-epoxycyclohexylcarboxylate, 2-(3,4-epoxycyclohexyl)ethyltrimethoxysilane, 2-(3,4-epoxycyclohexyl)ethyltriethoxysilane, and 2-(3,4-epoxycyclohexyl)ethyltripropoxysilane, more preferably, the epoxy diluent may be 3,4-epoxycyclohexylmethyl 3,4-epoxycyclohexylcarboxylate, 2-(3,4-epoxycyclohexyl)ethyltrimethoxysilane, etc.

[0066] The photoinitiator can be a cationic initiator, such as a diaryliodonium salt or a triarylthionium salt that satisfies the absorption wavelength.

[0067] The solvent may be at least one of methyl isobutyl ketone, methyl propyl ketone, methyl isopropyl ketone, ethyl acetate, acetone, cyclohexanone, 4-methyl-2-pentanone, diethyl ether, propylene glycol methyl ether, methanol, butanol, isopropanol, isobutanol, propylene glycol methyl ether acetate, chloroform, dichloromethane, n-hexane, or toluene.

[0068] The particles can be inorganic particles, such as SiO2, TiO2, ZrO2, etc., or organic particles, such as polystyrene (PS), polymethyl methacrylate (PMMA), etc.

[0069] The additives may be, for example, leveling agents, defoamers, toughening agents, etc.

[0070] The thickness of the anti-glare coating 120 is 3μm-20μm, preferably 10μm-15μm.

[0071] S3, such as Figure 5 As shown, a wear-resistant layer 130 is formed on the side of the anti-glare coating 120 away from the substrate 110, wherein the material of the wear-resistant layer 130 is aluminum oxide.

[0072] Further, an atomic layer deposition method can be used to form at least one layer of aluminum oxide film as the wear-resistant layer 130 on the side of the anti-glare coating 120 away from the substrate 110.

[0073] Specifically, the atomic layer deposition process is performed by alternating reaction cycles of trimethylaluminum (TMA) (Al(CH3)3) and water (H2O) to deposit an aluminum oxide film on the surface of the side of the anti-glare coating 120 away from the substrate 110, which is the wear-resistant layer 130. Specifically, in the atomic layer deposition process, in the first step, the reactant Al(CH3)3 chemisorbs with -OH on the anti-glare coating 120 to generate CH4; in the second step, the reactant Al(CH3)3 is attached to the surface of the anti-glare coating 120 in the form of an atomic layer, and the excess CH4 is removed by gas purging to prevent additional physical adsorption; in the third step, the reactant H2O chemically reacts with the reactant Al(CH3)3 to generate aluminum oxide; in the fourth step, the excess gas (CH4, H2O) is purged to complete the deposition of the first layer of aluminum oxide, and then the above steps are repeated to deposit the aluminum oxide film layer with the desired thickness.

[0074] Preferably, the thickness of the wear-resistant layer 130 is 20-50 nm.

[0075] After step S3, a step of:

[0076] S4, as shown in the figure, forming a protective layer 140 on the side of the wear-resistant layer 130 away from the anti-glare coating 120. Figure 1

[0077] Specifically, the protective layer 140 can be formed by dry evaporation or wet spraying. The material of the protective layer 140 can be perfluoropolyether silane, polydimethylsiloxane (PDMS), etc.

[0078] Preferably, the thickness of the protective layer 140 is 20-50 nm.

[0079] The present application also provides a display device comprising the anti-glare film according to any one of the above embodiments. The anti-glare film can be, for example, an anti-glare glass used as a glass cover plate to cover the surface of the display device. The display device can be a mobile phone, a tablet, a computer, a television, a vehicle-mounted display, etc., without specific limitation.

[0080] ​In summary, the application provides an anti-glare film and a preparation method thereof. A dense and uniform aluminum oxide wear-resistant layer is formed on the anti-glare coating of the anti-glare film, and the wear resistance of the surface of the anti-glare coating is improved through the whole aluminum oxide wear-resistant layer.

[0081] In summary, although the application has been disclosed with preferred embodiments as above, the above preferred embodiments are not intended to limit the application, and those skilled in the art can make various modifications and improvements without departing from the spirit and scope of the application. Therefore, the protection scope of the application is defined by the scope of the claims.

Claims

1. An anti-glare film, characterized in that, include: Substrate; An anti-glare coating is located on one side of the substrate, and the surface of the anti-glare coating away from the substrate has an uneven shape; A wear-resistant layer is located on the side of the anti-glare coating away from the substrate, wherein the material of the wear-resistant layer is aluminum oxide.

2. The anti-glare film according to claim 1, characterized in that, The wear-resistant layer and the anti-glare coating are connected by chemical adsorption.

3. The anti-glare film according to claim 1, characterized in that, The wear-resistant layer includes at least one aluminum oxide film, wherein the aluminum oxide film is a single-atom film.

4. The anti-glare film according to claim 1, characterized in that, The thickness of the wear-resistant layer is 10nm-100nm.

5. The anti-glare film according to claim 1, characterized in that, The anti-glare film also includes a protective layer located on the side of the wear-resistant layer away from the anti-glare coating.

6. The anti-glare film according to any one of claims 1-5, characterized in that, The raw materials for the anti-glare coating include: polysilsesquioxane, epoxy diluent, photoinitiator, microparticles, and solvent; In the raw materials of the anti-glare coating, the mass ratio of the polysilsesquioxane to the epoxy diluent ranges from 9:1 to 1:

9. With the total mass of the polysilsesquioxane and the epoxy diluent as W0, and the mass of the solvent as W... r W r The mass ratio of W to W0 ranges from 1:9 to 7:3; The photoinitiator has a mass of (1% to 4%) W0, and the microparticles have a mass of (0.1% to 30%) W0.

7. The anti-glare film according to any one of claims 1-5, characterized in that, The raw materials for the anti-glare coating include: polysilsesquioxane, photoinitiator, microparticles, and solvent; In the raw materials of the anti-glare coating, the mass of the polysilsesquioxane is W1, and the mass of the solvent is W. r W r The mass ratio of W1 to W1 ranges from 1:9 to 7:3; The mass of the photoinitiator is (1% to 4%) W1, and the mass of the microparticles is (0.1% to 30%) W1.

8. The anti-glare film according to any one of claims 1-5, characterized in that, The raw materials for the anti-glare coating include: epoxy diluent, photoinitiator, microparticles, and solvent; Of the raw materials for the anti-glare coating, the epoxy diluent has a mass of W2 and the solvent has a mass of W. r W r The mass ratio of W2 to W2 ranges from 1:9 to 7:3; The photoinitiator has a mass of (1% to 4%) W2, and the microparticles have a mass of (0.1% to 30%) W2.

9. A method for preparing an anti-glare film, characterized in that, include: Provide a base material; An anti-glare coating is formed on one side surface of the substrate, and the side surface of the anti-glare coating away from the substrate has an uneven shape; A wear-resistant layer is formed on the side of the anti-glare coating away from the substrate, wherein the material of the wear-resistant layer is aluminum oxide.

10. The preparation method according to claim 9, characterized in that, The step of forming a wear-resistant layer on the side of the anti-glare coating away from the substrate includes: At least one aluminum oxide film is formed on the side of the anti-glare coating away from the substrate using atomic layer deposition.

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