Low-reflection and low-hue integrated black AR film and preparation method thereof
By using a multi-layer structure design and a photocuring process with specific components, a black AR film with low reflectivity and low hue was prepared, solving the problem that traditional AR films cannot achieve both low reflectivity and low hue at the same time, thus combining a high-end feel with an anti-reflective effect.
Patent Information
- Application Number
- CN202511809469.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-03
- Publication Date
- 2026-02-13
AI Technical Summary
Existing AR films struggle to achieve a low reflectivity and low hue all-black effect, and traditional structures cannot simultaneously meet the demands for a premium feel and enhanced transparency and reduced reflection.
Employing a multi-layer structure design, including a substrate layer, a hardening layer, a first high refractive index layer, a second high refractive index layer, and a low refractive index layer, a low-reflection, low-hue integrated black AR film is formed through specific components and photocuring processes.
It achieves a black AR film with low reflectivity and low hue, meeting the need for a premium feel when the phone screen is off, while maintaining high transmittance and anti-reflection effect.
Smart Images
Figure CN121517754A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of AR films, and in particular to a low-reflection, low-hue integrated black AR film and its preparation method. Background Technology
[0002] Foldable wet-process AR films have been widely used in recent years, especially in the field of foldable phones. With continuous iterations and updates to mobile phones, the requirements for AR films are becoming increasingly stringent. Besides considering the smaller bending radius resulting from thinner phones, the requirements for the hue of the AR film are also becoming more demanding, aiming to achieve a seamless black hue effect when the phone screen is off. Hue refers to the state of the phone when the screen is off, generally defined by a* and b* values. Traditional AR films have a hue of 5≤a*≤12 and -25≤b*≤-10, with an overall hue dominated by blue-purple, giving them a vibrant appearance; while a seamless black AR film has a hue of -1≤a*≤5 and -5≤b*≤5, with an overall hue dominated by black, giving it a sophisticated feel. To achieve a seamless black hue effect, more layers need to be constructed. Traditional AR has a two-layer structure, which achieves the anti-reflection and anti-reflection effect by adjusting the high refractive index layer (high refractive index) and the low refractive index layer (low refractive index). However, a two-layer structure alone cannot achieve a seamless black effect. Often, a*≤5, b*≥-10 or a*≥10, b*≤-5 will occur. Therefore, a redesigned layered structure is needed to achieve the seamless black AR effect.
[0003] Existing AR films achieve anti-reflection and anti-reflection effects by adjusting the refractive index and thickness of high-refractive and low-refractive layers. Current standards include: reflectivity <1%, transmittance >94%, and a bluish-purple appearance with 5 ≤ a* ≤ 12 and -25 ≤ b* ≤ -10. However, the colors are too vibrant and lack a premium feel, leading to a demand for a one-piece black AR film. Simply combining high-refractive and low-refractive layers is insufficient to achieve a truly black effect. While adjusting the refractive index and thickness of high-refractive and low-refractive layers can achieve a black hue, it sacrifices reflectivity. Conversely, achieving low reflectivity compromises hue. Therefore, this invention discloses a novel structure to achieve a low-reflectivity, low-hue AR film. Summary of the Invention
[0004] The technical problem to be solved by the present invention is to provide a low-reflection, low-hue integrated black AR film and its preparation method, addressing the shortcomings of the prior art.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a low-reflection, low-hue integrated black AR film, comprising a substrate layer, a hardening layer, a first high-refractive-index layer, a second high-refractive-index layer, and a low-refractive-index layer stacked sequentially. The first high refractive index layer is obtained by coating a first high refractive index coating liquid and then curing it. The first high refractive index coating liquid comprises the following components in parts by weight: 2-40 parts of high refractive index resin; 15-60 parts of high refractive index nanoparticle dispersion; Additives: 0.1-0.5 parts; 0.5-2 parts of the first photoinitiator; The first solvent is 5-250 parts.
[0006] Preferably, the second high refractive index layer is obtained by coating a second high refractive index coating liquid and then curing it, wherein the second high refractive index coating liquid comprises the following components in parts by weight: 2-40 parts of high refractive index resin; 15-60 parts of high refractive index nanoparticle dispersion; Additives: 0.1-0.5 parts; 0.5-2 parts of the first photoinitiator; 5-250 parts of the first solvent; The composition of the second high refractive index coating is not exactly the same as that of the first high refractive index coating.
[0007] Preferably, the high refractive index resin is AgiSyn 2818; The nanoparticles in the high refractive index nanoparticle dispersion are one or more of nano-zirconia, nano-titanium oxide, and nano-zinc oxide. The additives include leveling agents.
[0008] Preferably, the hardened layer is obtained by applying a hardening coating and then curing it, wherein the hardening coating comprises the following components in parts by weight: 20-50 parts of flexible resin; 0.5-2 parts of the second photoinitiator; 25-90 parts of the second solvent.
[0009] Preferably, the flexible resin is one or more aliphatic polyurethane acrylates with polyether polyol modified resin as the main component.
[0010] Preferably, the low refractive index layer is obtained by coating a low refractive index liquid and then curing it, wherein the low refractive index liquid comprises the following components in parts by weight: 0.5-2 parts of low refractive index resin; 0.1-0.4 parts of active monomer; 0.1-0.4 parts of reactive fluorine additive; 0.5-2 parts of wear-resistant particle dispersion; 1.75-7 parts of hollow silica dispersion; 3-6 parts of the third photoinitiator; The third solvent is 50-150 parts.
[0011] Preferably, the low refractive index resin is one or more of fluorocarbon modified polyurethane acrylate, fluorosilicone modified polyurethane acrylate, fluorocarbon modified polyester acrylate, and fluorosilicone modified polyester acrylate. The active monomer is one or more of pentaerythritol triacrylate, pentaerythritol tetraacrylate, dipentaerythritol pentaacrylate, and dipentaerythritol hexaacrylate; The reactive fluorinated additive is selected from perfluoropolyether-modified polyurethane acrylate oligomers; Preferably, the wear-resistant particles in the wear-resistant particle dispersion are Al2O3.
[0012] Preferably, the first photoinitiator, the second photoinitiator, and the third photoinitiator are all selected from one or more of photoinitiator 1024, photoinitiator 379, photoinitiator 819, photoinitiator 184, photoinitiator KIP 150, and photoinitiator TPO; The first solvent, the second solvent, and the third solvent are each selected from one or more of ethyl acetate, butyl acetate, butanone, acetone, propylene glycol methyl ether, and propylene glycol methyl ether acetate.
[0013] The present invention also provides a method for preparing the low-reflection, low-hue integrated black AR film as described above, comprising the following steps: S1. Mix the flexible resin, the second photoinitiator, and the second solvent evenly according to the weight ratio to obtain a hardened coating liquid; S2. Apply the hardening coating evenly to the substrate, and after drying, apply it at a pressure of 100-400 mJ / cm². 2 UV energy for photocuring Form a hardened layer; S3. The high refractive index resin, high refractive index nanoparticle dispersion, first photoinitiator, additive, and first solvent are mixed evenly according to the component ratio of the first high refractive index coating liquid and the second high refractive index coating liquid, respectively, to prepare the first high refractive index coating liquid and the second high refractive index coating liquid. S4. Uniformly coat the first high-refractive-index optical coating onto the hardened layer, and after drying, apply it at 100-400 mJ / cm². 2 UV energy is used for photocuring to form the first high refractive index layer; S5. Apply the second high-refractive-index optical coating evenly onto the first high-refractive-index layer. After drying, apply the coating at a concentration of 100-400 mJ / cm². 2 UV energy is used for photocuring to form a second high refractive index layer; S6. Mix the low refractive index resin, active monomer, reactive fluorine additive, wear-resistant particle dispersion, hollow silica dispersion, third photoluminescent agent, and third solvent in the weight ratio to obtain a low refractive index coating liquid. S7. Apply the low-refractive-index coating liquid evenly onto the second high-refractive-index layer, and after drying, apply it at 800-1000 mJ / cm². 2 UV energy is used for photocuring to form a low refractive index layer, ultimately resulting in the low-reflection, low-hue integrated black AR film.
[0014] The beneficial effects of this invention are: This invention provides a low-reflection, low-hue integrated black AR film and its preparation method. The AR film includes a substrate layer, a hardening layer, a first high-refractive-index layer, a second high-refractive-index layer, and a low-refractive-index layer stacked sequentially. In addition to meeting the basic physical properties of traditional AR folded protective films, the AR film of this invention can also achieve a low-hue visual effect. Furthermore, the multi-layer structure of the AR film of this invention can achieve a lower reflectivity compared to traditional AR folded protective films, thus realizing the preparation of a low-reflection, low-hue AR protective film. Attached Figure Description
[0015] Figure 1 The reflectance curves are for the AR films of Example 1 and Comparative Example 1. Figure 2 The hue is the color of the AR film in the blackened state of Example 1 and Comparative Example 1. Detailed Implementation
[0016] The present invention will be further described in detail below with reference to embodiments, so that those skilled in the art can implement it based on the description.
[0017] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.
[0018] Unless otherwise specified, the experimental methods used in the following examples are conventional methods. Unless otherwise specified, the materials and reagents used in the following examples are commercially available. For examples where specific conditions are not specified, conventional conditions or conditions recommended by the manufacturer are followed. For reagents or instruments whose manufacturers are not specified, they are all commercially available products.
[0019] The present invention provides a low-reflection, low-hue integrated black AR film, comprising a substrate layer, a hardening layer, a first high-refractive-index layer, a second high-refractive-index layer and a low-refractive-index layer stacked sequentially.
[0020] In a preferred embodiment, the thicknesses of the hardened layer, the first high refractive index layer, the second high refractive index layer, and the low refractive index layer are 3-5 μm, 50-200 nm, 20-60 nm, and 90-130 nm, respectively.
[0021] In a preferred embodiment, the first high refractive index layer is obtained by coating a first high refractive index coating liquid and then curing it. The first high refractive index coating liquid comprises the following components in parts by weight: 2-40 parts of high refractive index resin; 15-60 parts of high refractive index nanoparticle dispersion; Additives: 0.1-0.5 parts; 0.5-2 parts of the first photoinitiator; The first solvent is 5-250 parts.
[0022] In a preferred embodiment, the second high refractive index layer is obtained by coating a second high refractive index coating liquid and then curing it. The second high refractive index coating liquid comprises the following components in parts by weight: 2-40 parts of high refractive index resin; 15-60 parts of high refractive index nanoparticle dispersion; Additives: 0.1-0.5 parts; 0.5-2 parts of the first photoinitiator; 5-250 parts of the first solvent; The composition of the second high refractive index coating is not exactly the same as that of the first high refractive index coating.
[0023] In a preferred embodiment, the high refractive index resin is AgiSyn 2818; The nanoparticles in the high refractive index nanoparticle dispersion are one or more of nano-zirconia, nano-titanium oxide, and nano-zinc oxide. Additives include leveling agents.
[0024] In a preferred embodiment, the hardened layer is obtained by applying a hardening coating and then curing it. The hardening coating comprises the following components in parts by weight: 20-50 parts of flexible resin; 0.5-2 parts of the second photoinitiator; 25-90 parts of the second solvent.
[0025] In a preferred embodiment, the flexible resin is one or more aliphatic polyurethane acrylates, primarily composed of polyether polyol-modified resins. Using low-functionality polyether polyol-modified aliphatic polyurethane acrylates, combined with the good flexibility of the polyether polyol chain COC, can further improve the bending resistance of the hardened layer.
[0026] In a preferred embodiment, the low refractive index layer is obtained by coating with a low refractive index coating liquid and then curing it. The low refractive index coating liquid comprises the following components in parts by weight: 0.5-2 parts of low refractive index resin; 0.1-0.4 parts of active monomer; 0.1-0.4 parts of reactive fluorine additive; 0.5-2 parts of wear-resistant particle dispersion; 1.75-7 parts of hollow silica dispersion; 3-6 parts of the third photoinitiator; The third solvent is 50-150 parts.
[0027] In a preferred embodiment, the low refractive index resin is one or more of fluorocarbon modified polyurethane acrylate, fluorosilicone modified polyurethane acrylate, fluorocarbon modified polyester acrylate, and fluorosilicone modified polyester acrylate. In a preferred embodiment, the active monomer is one or more of pentaerythritol triacrylate, pentaerythritol tetraacrylate, dipentaerythritol pentaacrylate, and dipentaerythritol hexaacrylate (DPHA). In a preferred embodiment, the reactive fluorinated additive is selected from perfluoropolyether-modified polyurethane acrylate oligomers; the perfluoropolyether is grafted onto the side chains of the polyurethane acrylate oligomers in the form of chain segments. Compared with adding organic fluorinated additives in conventional technology, it can improve the anti-fouling properties of the coating on the one hand, and improve the wear resistance of the coating on the other hand, and make the anti-fouling effect of the coating last.
[0028] In a preferred embodiment, the wear-resistant particles in the wear-resistant particle dispersion are Al2O3.
[0029] In a preferred embodiment, the first photoinitiator, the second photoinitiator, and the third photoinitiator are all selected from one or more of photoinitiator 1024, photoinitiator 379, photoinitiator 819, photoinitiator 184, photoinitiator KIP 150, and photoinitiator TPO. The selection of non-yellowing initiators, combined with initiators that balance surface drying and deep curing, can ensure both the transparency and curing effect of the coating, effectively avoiding the problem of poor wear resistance of the coating caused by surface oxygen inhibition during UV curing.
[0030] In a preferred embodiment, the first solvent, the second solvent, and the third solvent are all selected from one or more of ethyl acetate, butyl acetate, butanone, acetone, propylene glycol methyl ether, and propylene glycol methyl ether acetate.
[0031] This invention also provides a method for preparing the above-mentioned low-reflection, low-hue integrated black AR film, comprising the following steps: S1. Mix the flexible resin, the second photoinitiator, and the second solvent evenly according to the weight ratio to obtain a hardened coating liquid; S2. Apply the hardening coating evenly to the substrate, and after drying, apply it at a pressure of 100-400 mJ / cm². 2 It is cured under UV energy to form a hardened layer; S3. The high refractive index resin, high refractive index nanoparticle dispersion, first photoinitiator, additive, and first solvent are mixed evenly according to the component ratio of the first high refractive index coating liquid and the second high refractive index coating liquid, respectively, to prepare the first high refractive index coating liquid and the second high refractive index coating liquid. S4. Uniformly coat the first high-refractive-index optical coating onto the hardened layer, and after drying, apply it at 100-400 mJ / cm². 2 UV energy is used for photocuring to form the first high refractive index layer; S5. Apply the second high-refractive-index optical coating evenly onto the first high-refractive-index layer. After drying, apply the coating at a concentration of 100-400 mJ / cm². 2 UV energy is used for photocuring to form a second high refractive index layer; S6. Mix the low refractive index resin, active monomer, reactive fluorine additive, wear-resistant particle dispersion, hollow silica dispersion, third photoluminescent agent, and third solvent in the weight ratio to obtain a low refractive index coating liquid. S7. Apply the low-refractive-index coating liquid evenly onto the second high-refractive-index layer, and after drying, apply it at 800-1000 mJ / cm². 2 UV energy is used for photocuring to form a low refractive index layer, ultimately resulting in a low-reflection, low-hue integrated black AR film.
[0032] The above is the general concept of the present invention. Based on this, detailed embodiments and comparative examples are provided below to further illustrate the present invention.
[0033] All components in the following formulas are in parts by weight.
[0034] Example 1 A low-reflection, low-hue integrated black AR film comprises a substrate layer, a hardening layer, a first high-refractive-index layer, a second high-refractive-index layer, and a low-refractive-index layer stacked sequentially. Its preparation method includes the following steps: S1. Preparation of hardening coating solution: 30 parts by weight of flexible resin (Sartoma, CN9110NS), 0.9 parts by weight of second photoinitiator (BASF, 184:KIP 150 mass ratio = 1:1), and second solvent (a mixture of 30 parts by weight of PM and 15 parts by weight of MEK) were mixed and stirred for 1 hour at a stirring speed of 800 rpm to obtain a hardened coating solution. After standing for defoaming for 4 hours, it was ready for use. Among them, PM is propylene glycol methyl ether and MEK is methyl ethyl ketone. S2. Preparation of the first high refractive index coating: Five parts by weight of high refractive index resin (specifically AgiSyn 2818), 15 parts by weight of nano-zirconia dispersion (Hangzhou Wanjing, VK-R20W, solid content 30%), 0.9 parts by weight of first photoinitiator (BASF, 184:KIP 150 = 1:1), 0.15 parts by weight of leveling agent (BYK 310), and first solvent (a mixture of 100 parts by weight of PM and 100 parts by weight of MEK) were mixed and stirred for 1 hour at a stirring speed of 800 rpm to obtain the first high refractive index coating solution. After standing for defoaming for 4 hours, it was ready for use. S3. Preparation of the second high refractive index coating: 3 parts by weight of high refractive index resin (specifically AgiSyn 2818), 30 parts by weight of nano-zirconia dispersion (Hangzhou Wanjing, VK-R20W, solid content 30%), 1.2 parts by weight of first photoinitiator (BASF, 184:KIP 150 = 1:1), 0.3 parts by weight of leveling agent (BYK 310), and first solvent (a mixture of 125 parts by weight of PM and 125 parts by weight of MEK) were mixed and stirred for 1 hour at a stirring speed of 800 rpm to obtain the first high refractive index coating solution. After standing for defoaming for 4 hours, it was ready for use. S4. Preparation of low refractive index coating: 0.8 parts by weight of low refractive index resin (Wuxi Sabis, SPC-1410), 0.2 parts by weight of active monomer DPHA (dipentaerythritol hexaacrylate, Sardoma), 3.5 parts by weight of hollow silica dispersion (Jicang Nano, JC-S01B, 30% solid content), 1 part by weight of wear-resistant particle dispersion (Zhejiang Zhitai Nano Microelectronics, ZT-L30C, 20% solid content), 0.12 parts by weight of third photoinitiator KIP 150, 0.2 parts by weight of reactive fluorine additive (Zhongfu Technology, Fluere UV-300), and third solvent (70 parts by weight of PM and 30 parts by weight of MEK mixed solvent) were mixed and stirred for 1.5 hours at a stirring speed of 800 rpm to obtain a low refractive index coating solution. After standing for 12 hours to defoam, it was ready for use. S5. Preparation of each coating: Transparent PET substrate was selected as the base film. A 22# wire rod was used to apply the curing coating to the coated surface of the base film. The film was then baked in an 80℃ oven for 2 minutes with a UV curing energy of 300 mJ / cm². 2 It solidifies to form a hardened layer; The first high-refractive-index coating liquid was applied onto the hardened coating using a 10# wire rod, and then baked in an oven at 80℃ for 2 minutes with a UV curing energy of 300mJ / cm². 2 The first high refractive index layer is solidified and formed. The second high-refractive-index optical coating was applied onto the first high-refractive-index layer using a 10# wire rod, and then baked in an oven at 80℃ for 2 minutes with a UV curing energy of 300mJ / cm². 2 The second high refractive index layer is formed by solidification. The low-refractive-index coating liquid was applied to the second high-refractive-index layer using a 10# wire rod. The coating was then baked in an 80℃ oven for 2 minutes, UV cured at an energy of 800mJ / cm2, and cured under nitrogen protection to form a low-refractive-index layer, ultimately yielding a low-reflection, low-hue integrated black AR film.
[0035] In this embodiment, the thicknesses of the hardened layer, the first high refractive index layer, the second high refractive index layer, and the low refractive index layer are 3 μm, 200 nm, 30 nm, and 110 nm, respectively.
[0036] Comparative Example 1 (Traditional AR) An AR film includes a substrate layer, a hardening layer, a high refractive index layer, and a low refractive index layer stacked sequentially, and its preparation method includes the following steps: S1. Preparation of hardening layer coating liquid: Mix 30 parts of flexible resin (Sartoma, CN9110 NS), 0.9 parts of photoinitiator (BASF, 184:KIP 150 = 1:1), and organic solvent (a mixture of 30 parts of PM and 15 parts of MEK) and stir for 1 hour at a stirring speed of 800 rpm to obtain a hardened coating solution. Let it stand for 4 hours to defoam before use. S2. Preparation of high refractive index coating: A high refractive index resin (AgiSyn 28183) was mixed and stirred for 1 hour at a stirring speed of 800 rpm. The mixture was then allowed to stand for 4 hours to defoam before being used for further processing. S3. Preparation of low refractive index coating: 0.8 parts by weight of low refractive index resin (Wuxi Sabis, SPC-1410), 0.2 parts by weight of active monomer DPHA (dipentaerythritol hexaacrylate, Sardoma), 3.5 parts by weight of hollow silica dispersion (Jicang Nano, JC-S01B, 30% solid content), 1 part by weight of wear-resistant particle dispersion (Zhejiang Zhitai Nano Microelectronics, ZT-L30C, 20% solid content), 0.12 parts by weight of third photoinitiator KIP 150, 0.2 parts by weight of reactive fluorine additive (Zhongfu Technology, Fluere UV-300), and third solvent (70.65 parts by weight of PM and 23.81 parts by weight of MEK mixed solvent) were mixed and stirred for 1.5 hours at a stirring speed of 800 rpm to obtain a low refractive index coating solution. After standing for 12 hours to defoam, it was ready for use. S4. Preparation of each coating: Transparent PET substrate was selected as the base film. A 22# wire rod was used to apply the curing coating to the coated surface of the base film. The film was then baked in an 80℃ oven for 2 minutes with a UV curing energy of 300 mJ / cm². 2 It solidifies to form a hardened layer; The first high-refractive-index coating liquid was applied onto the hardened coating using a 10# wire rod, and then baked in an oven at 80℃ for 2 minutes with a UV curing energy of 300mJ / cm². 2 It solidifies to form a high refractive index layer; The low-refractive-index coating liquid was applied onto the second high-refractive-index layer using a 10# wire rod. The layer was then baked in an 80℃ oven for 2 minutes, UV cured at an energy of 800mJ / cm2, and cured under nitrogen protection to form a low-refractive-index layer, thus obtaining the AR film.
[0037] In this example, the thicknesses of the hardened layer, the high-refractive-index layer, and the low-refractive-index layer are 3 μm, 20 nm, and 110 nm, respectively.
[0038] The performance of the AR films prepared in Example 1 and Comparative Example 1 was tested, and the test results are shown in Table 1 below: Table 1 Note: The CIE L*a*b* color space consists of three channels: the L* channel represents lightness, with a value ranging from 0 to 100. The larger the value, the greater the lightness of the color; the a* and b* channels are two chromaticity channels, where the a* channel represents the red-green response of the color, and the b* channel represents the yellow-blue response of the color.
[0039] Reference Figure 1The reflectance curves of the AR film in the examples and comparative examples are shown. The test results show that the all-in-one black AR has a lower reflectance at 550nm and an even lower average reflectance in the 420-680nm range, indicating that the all-in-one black AR has an excellent anti-reflection effect. When applied to the surface of a mobile phone, it will make the image clearer, more transparent, and more realistic in color. Reference Figure 2 The figures show the hue of the AR film in its black state in the examples and comparative examples. The test results show that the hue of the traditional AR film is too bright, while the hue of the all-black AR film is much darker.
[0040] By comparing Example 1 and Comparative Example 1, it can be seen that the AR film of Example 1 can achieve low hue while meeting the basic physical properties of folded protective film, bringing users a better visual experience.
[0041] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details.
Claims
1. A low-reflection low-hue integrated black AR film, characterized by, The substrate layer, the hardening layer, the first high-refractive layer, the second high-refractive layer and the low-refractive layer are sequentially stacked. The first high-refractive layer is obtained by curing a first high-refractive coating liquid, and the first high-refractive coating liquid comprises the following components by weight: High-refractive resin 2-40 parts; High-refractive nanoparticle dispersion liquid 15-60 parts; Auxiliary agent 0.1-0.5 parts; First photoinitiator 0.5-2 parts; First solvent 5-250 parts.
2. The low-reflection low-color-intensity all-in-one black AR film according to claim 1, characterized by, The second high-refractive layer is obtained by curing a second high-refractive coating liquid, and the second high-refractive coating liquid comprises the following components by weight: High-refractive resin 2-40 parts; High-refractive nanoparticle dispersion liquid 15-60 parts; Auxiliary agent 0.1-0.5 parts; First photoinitiator 0.5-2 parts; First solvent 5-250 parts; The components of the second high-refractive coating liquid are not completely the same as those of the first high-refractive coating liquid. 3.The low-reflection low-hue integrated black AR film according to claim 2, characterized by, The high-refractive resin is AgiSyn 2818; The nanoparticles in the high-refractive nanoparticle dispersion liquid are one or more of nano-zirconium oxide, nano-titanium oxide and nano-zinc oxide; The auxiliary agent comprises a leveling agent.
4. The low-reflection low-color-intensity all-in-one black AR film according to claim 3, characterized by, The hardening layer is obtained by curing a hardening coating liquid, and the hardening coating liquid comprises the following components by weight: Flexible resin 20-50 parts; Second photoinitiator 0.5-2 parts; Second solvent 25-90 parts.
5. The low-reflection low-color-intensity all-in-black AR film according to claim 4, characterized by, The flexible resin is one or more of aliphatic polyurethane acrylate mainly based on polyether polyol modified resin.
6. The low-reflection low-color-intensity all-in-black AR film according to claim 5, characterized by, The low-refractive layer is obtained by curing a low-refractive coating liquid, and the low-refractive coating liquid comprises the following components by weight: Low-refractive resin 0.5-2 parts; Active monomer 0.1-0.4 parts; Reactive fluorine auxiliary agent 0.1-0.4 parts; Wear-resistant particle dispersion liquid 0.5-2 parts; Hollow silica dispersion liquid 1.75-7 parts; Third photoinitiator 3-6 parts; Third solvent 50-150 parts.
7. The low-reflection low-color-intensity all-in-black AR film according to claim 6, characterized by, The low-refractive resin is one or more of fluorocarbon modified polyurethane acrylate, fluorosilicon modified polyurethane acrylate, fluorocarbon modified polyester acrylate and fluorosilicon modified polyester acrylate; The active monomer is one or more of pentaerythritol triacrylate, pentaerythritol tetraacrylate, dipentaerythritol pentaacrylate and dipentaerythritol hexaacrylate; The reactive fluorine auxiliary agent is selected from perfluoropolyether modified polyurethane acrylate oligomer. 8.The low-reflection low-hue all-in-black AR film according to claim 7, characterized by, The wear-resistant particles in the wear-resistant particle dispersion liquid are Al2O3. 9.The low-reflection low-hue all-in-black AR film according to claim 8, characterized by, The first photoinitiator, the second photoinitiator and the third photoinitiator are selected from one or more of photoinitiator 1024, photoinitiator 379, photoinitiator 819, photoinitiator 184, photoinitiator KIP 150 and photoinitiator TPO; The first solvent, the second solvent and the third solvent are selected from one or more of ethyl acetate, butyl acetate, butanone, acetone, propylene glycol methyl ether and propylene glycol methyl ether acetate.
10. A method for producing a low-reflection low-color low-reflection low-color integrated black AR film according to any one of claims 1 to 9, characterized by, The method comprises the following steps: S1, uniformly mixing the flexible resin, the second photoinitiator and the second solvent according to weight ratio to obtain a hardening coating liquid; S2, the hardening coating liquid is uniformly coated on the substrate, and after drying, photocuring is performed under 100-400 mJ / cm 2 of UV energy, forming a hardened layer; S3, respectively, according to the first high refractive index coating liquid and the second high refractive index coating liquid component distribution ratio high refractive index resin, high refractive nano particle dispersion liquid, first light initiator, auxiliary agent, first solvent are mixed uniformly according to weight ratio, respectively, the first high refractive index coating liquid and the second high refractive index coating liquid are prepared; S4, uniformly coating a first high-refractive optical coating liquid on the hardened layer, and after drying, photo-curing under 100-400 mJ / cm 2 of UV energy to form a first high-refractive layer; S5, uniformly coating a second high refractive index optical coating liquid on the first high refractive index layer, and after drying, photo-curing under 100-400 mJ / cm 2 of UV energy to form a second high refractive index layer; S6, low refractive index resin, active monomer, reactive fluorine auxiliary agent, wear-resistant particle dispersion liquid, hollow silica dispersion liquid, third light initiator, third solvent are mixed uniformly according to weight ratio, and low refractive index coating liquid is obtained; S7, uniformly coating a low refractive index coating liquid on the second high refractive index layer, and after drying, photocuring under 800-1000 mJ / cm 2 of UV energy to form a low refractive index layer, and finally obtaining the low reflection and low color phase integrated black AR film.