High-permeability silver ion antibacterial cover plate and preparation method thereof

Abstract

The invention provides a high-transmittance silver ion antibacterial cover plate and a preparation method thereof. The high-transmittance silver ion antibacterial cover plate comprises an antibacterial glass substrate, the color matching film layer is arranged on the antibacterial glass substrate, the color matching film layer is formed by combining at least two oxides, and the wavelength of a reflection color of the color matching film layer is 400 nm to 480 nm. Compared with the prior art, the color matching film layer is innovatively arranged on the antibacterial glass substrate, and yellow reflected by the nano-silver layer of the antibacterial glass is neutralized by blue or bluish violet or purple reflected by the color matching film layer, so that the problem of yellowing of the silver ion antibacterial cover plate is solved; and moreover, as the type and proportion of the silver ion compound are not required to be adjusted or the preparation condition of the molten salt is not required to be changed like the prior art, the production cost is reduced, and the optical performance is not influenced.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid crystal electronic devices, and in particular to a high-transmittance silver ion antibacterial cover plate and a preparation method thereof. Background Art

[0002] Touch screen technology has been widely used in various electronic devices, such as smart phones, tablets, smart watches, etc. Among them, the antibacterial performance of the touch screen is an important consideration, because it can effectively prevent the growth of bacteria and keep the touch screen clean and hygienic. At present, the silver ion antibacterial cover is mainly a product obtained by the chemical reaction of silver ion compound molten salt with glass substrate. However, the exchange technology of silver ions with alkali metal ions in glass has its own difficulties. Silver ions are easily reduced to nanoparticles or clusters of metallic silver, and its absorption peak is close to 420nm. After the purple light is absorbed, the glass will appear yellow, resulting in yellowing of the silver ion antibacterial cover, which affects its use.

[0003] In order to solve the above problems, the existing technology is to improve the color of the silver ion antibacterial cover plate by adjusting the type and proportion of silver ion compounds, or changing the preparation conditions of molten salt, or adding other chemicals to the glass to solve the yellowing problem of the silver ion antibacterial cover plate. However, the above solutions still have some problems and shortcomings. First, the existing methods often require complicated preparation processes and high preparation costs, which limits their application in large-scale production. Secondly, the existing methods will affect the antibacterial properties of the silver ion antibacterial cover plate, thereby reducing its antibacterial effect. Finally, the existing methods may affect the optical properties of the silver ion antibacterial cover plate, such as reducing its transmittance and affecting the display effect of the touch screen product. Summary of the invention

[0004] The purpose of the present invention is to provide a highly transparent silver ion antibacterial cover plate and a preparation method thereof, so as to solve the technical problem of how to solve the yellowing problem of the silver ion antibacterial cover plate without affecting its antibacterial performance and optical properties.

[0005] In order to achieve the above object, the technical solutions of the present invention are:

[0006] The present invention provides a highly transparent silver ion antibacterial cover plate, which comprises:

[0007] Antimicrobial glass substrate;

[0008] The color-adjusting film layer is arranged on the antibacterial glass substrate. The color-adjusting film layer comprises a combination of at least two oxides. The wavelength of the reflection color of the color-adjusting film layer is 400nm to 480nm.

[0009] Compared with the prior art, the present application innovatively arranges a color-adjusting film layer on the antibacterial glass substrate, and utilizes the bluish-purple color reflected by the color-adjusting film layer to neutralize the yellow color reflected by the nano-silver layer of the antibacterial glass, thereby solving the yellowing problem of the silver ion antibacterial cover plate; and since there is no need to adjust the type and proportion of the silver ion compound or change the preparation conditions of the molten salt as in the prior art, the production cost is reduced and the optical performance will not be affected.

[0010] In one embodiment, the oxide includes zinc oxide, titanium oxide, zirconium oxide, aluminum oxide, and silicon oxide.

[0011] In one embodiment, the antimicrobial glass substrate has a touch surface and a non-touch surface;

[0012] The color-adjusting film layer is located on the non-touch surface of the antibacterial glass substrate.

[0013] In one embodiment, the color adjustment film layer includes multiple adjustment layers stacked together, wherein:

[0014] The materials of the two adjacent adjustment layers are the same, or the materials of the two adjacent adjustment layers are different.

[0015] In one embodiment, the thicknesses of two adjacent adjustment layers are the same, or the thicknesses of two adjacent adjustment layers are different.

[0016] In one embodiment, the number of the adjustment layers is 15 to 20, and the thickness of each adjustment layer is 10 to 12 nm.

[0017] The present invention also provides a method for preparing a highly permeable silver ion antibacterial cover plate, which comprises:

[0018] S30: preparing a color-adjusting film layer on the antibacterial glass substrate, wherein the color-adjusting film layer comprises a combination of at least two oxides, and the wavelength of the reflection color of the color-adjusting film layer is 400nm to 480nm.

[0019] In one embodiment, the color-adjusting film layer is prepared on the antibacterial glass substrate by magnetron sputtering or ion beam thermal evaporation.

[0020] In one embodiment, the color adjustment film layer comprises a plurality of adjustment layers, and the steps of preparing the color adjustment film layer are specifically as follows:

[0021] S31: depositing an adjustment layer on the antibacterial glass substrate;

[0022] S32: measuring the b value and transmittance of the Lab color value after the adjustment layer in S31 is combined with the antibacterial glass substrate, and determining the material and thickness of the next adjustment layer according to the b value and the transmittance;

[0023] S33: depositing a next adjustment layer on the previous adjustment layer;

[0024] Steps S31, S32 and S33 are repeated in sequence until the b value of the Lab color value after the color adjustment film layer formed by stacking multiple adjustment layers and the antibacterial glass substrate is combined reaches a required range.

[0025] In one embodiment, the color adjustment film layer comprises a plurality of adjustment layers, and the steps of preparing the color adjustment film layer are specifically as follows:

[0026] S31': measuring the b value and transmittance of the Lab color value of the current antibacterial glass substrate;

[0027] S32': According to the b value, transmittance and the type of oxide required for making the toning film layer, match with the preset comparison table to determine the number of adjustment layers, the type and sequence of oxides for each adjustment layer and the thickness of each adjustment layer;

[0028] S33 ′: depositing multiple adjustment layers on the antibacterial glass substrate according to the number of adjustment layers, the type and sequence of oxides of each adjustment layer, and the thickness of each adjustment layer determined in step S32 ′. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0030] Figure 1 It is a schematic diagram of a highly transparent silver ion antibacterial cover plate of the present application;

[0031] Figure 2 is a schematic diagram of the adjustment layer of the present application.

[0032] Description of reference numerals:

[0033] 10 nanometer silver layer, 20 glass substrate, 30 color film layer, 310 adjustment layer DETAILED DESCRIPTION

[0034] In order to better illustrate the present invention, the present invention is further described in detail below with reference to the accompanying drawings.

[0035] It should be clear that the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the embodiments of the present application.

[0036] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the embodiments of the present application. The singular forms of "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0037] When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims. In the description of the present application, it should be understood that the terms "first", "second", "third", etc. are only used to distinguish similar objects, and do not have to be used to describe a specific order or sequence, nor can they be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0038] In addition, in the description of this application, unless otherwise specified, "plurality" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0039] Example 1

[0040] Combination Figure 1 to Figure 2 As shown, the present invention provides a high-transmittance silver ion antibacterial cover plate, which includes: an antibacterial glass substrate 20; a color-adjusting film layer 30, which is arranged on the antibacterial glass substrate 20, and the color-adjusting film layer 30 includes a combination of at least two oxides, and the wavelength of the reflection color of the color-adjusting film layer 30 is 400nm~480nm, that is, the reflection color of the color-adjusting film layer 30 is blue or blue-purple or purple.

[0041] Compared with the prior art, the present application innovatively sets a color-adjusting film layer 30 on the antibacterial glass substrate 20, and uses the blue or blue-purple or purple reflected by the color-adjusting film layer 30 to neutralize the yellow reflected by the nano-silver layer 10 of the antibacterial glass, thereby solving the yellowing problem of the silver ion antibacterial cover plate; and since there is no need to adjust the type and proportion of the silver ion compound or change the preparation conditions of the molten salt as in the prior art, the production cost is reduced and the optical performance is not affected. It should be noted that the color of the blue light wavelength to the purple light wavelength can be modulated according to the yellowing situation of the actual batch, in order to neutralize the color of the yellow band.

[0042] In this embodiment, the oxide includes metal oxides, and the metal oxides include Group IVB metal oxides, Group IIB metal oxides, and Group IIIA metal oxides; the Group IVB metal oxides include titanium oxide and zirconium oxide, the Group IIB metal oxides include zinc oxide and chromium oxide, and the Group IIIA metal oxides include aluminum oxide and gallium oxide; the oxide also includes silicon oxide.

[0043] In order to understand the effect of the present application, the following comparative experiments will be conducted on the relevant performance tests of the antibacterial glass substrate 20 made of the above-mentioned various oxides. The present application will be divided into 5 groups for comparative experiments. Specifically,

[0044] Group 1: the antibacterial glass substrate 20 of the prior art, without the color-adjusting film layer 30 of the present application;

[0045] Group 2: The color-adjusting film layer 30 is a combination of zinc oxide, titanium oxide and silicon oxide;

[0046] Group 3: The color-adjusting film layer 30 is made of a combination of aluminum oxide, titanium oxide, and silicon oxide;

[0047] Group 4: The color-adjusting film layer 30 is a combination of zinc oxide, zirconium oxide and silicon oxide;

[0048] Group 5: The color-adjusting film layer 30 is a combination of zinc oxide and titanium oxide;

[0049] Table 1 shows the relevant performance test data of the antibacterial glass substrates 20 of the above groups.

[0050]

[0051] It should be noted that the present application adopts the b value in the Lab color value as the reference data for the yellowing degree of the antibacterial glass substrate 20, in conjunction with visual observation as an aid. The Lab color value is tested using a colorimeter. When the b value is 0, it indicates that there is no color difference in the color of the cover. When the b value is <0, the color is bluish, and the larger the value, the bluer the color; when the b value is >0, the color is yellowish, and the larger the value, the yellower the color.

[0052] Since the silver ion antibacterial cover plate is often touched by users, in this embodiment, the antibacterial glass substrate 20 has a touch surface and a non-touch surface, the touch surface refers to the side that is often touched by users, and the non-touch surface is generally connected to the display module; the color adjustment film layer 30 is located on the non-touch surface of the antibacterial glass substrate 20 to ensure that the release of silver ions on the touch surface and the contact between silver ions and harmful bacteria are not hindered, and the antibacterial effect is not affected.

[0053] In this embodiment, the color adjustment film layer 30 includes a plurality of adjustment layers 310 stacked together, and the plurality of adjustment layers 310 can deposit oxides on the antibacterial glass substrate 20 by magnetron sputtering or ion beam thermal evaporation; wherein the materials of the two adjacent adjustment layers 310 are the same, or the materials of the two adjacent adjustment layers 310 are different. In this embodiment, by matching different adjustment layers 310, the blue or blue-purple or purple reflected by the color adjustment film layer 30 after the plurality of adjustment layers 310 are stacked can be mixed and neutralized to the yellow of the nanosilver layer 10 in the antibacterial glass substrate 20 to visually have no yellowing effect. Among them, since the yellowing degree of each antibacterial glass substrate 20 is different, this embodiment dynamically adjusts the number of layers and materials of the multi-layer adjustment layer 310 according to the yellowing degree of the current antibacterial glass substrate 20, so as to adapt to different yellowing degrees.

[0054] Specifically, taking the oxide combination of zinc oxide, titanium oxide, and silicon oxide as an example, the material of the first adjustment layer 310 can be set to zinc oxide, the material of the second adjustment layer 310 can be set to titanium oxide, and the material of the third adjustment layer 310 can be set to silicon oxide, that is, the materials of the two adjacent adjustment layers 310 are different; the material of the first adjustment layer 310 can also be set to zinc oxide, the material of the second adjustment layer 310 can be set to zinc oxide, and the material of the third adjustment layer 310 can be set to silicon oxide, that is, the materials of the two adjacent adjustment layers 310 are the same. The above setting of the materials of the two adjacent adjustment layers 310 to be the same or the setting of the materials of the two adjacent adjustment layers 310 to be different specifically needs to be changed and adjusted according to the degree of neutralization of the yellowing of the antibacterial glass substrate 20 and the degree of antireflection, etc., by the currently superimposed adjustment layer 310.

[0055] When light passes through the color adjustment film layer 30, since the color adjustment film layer 30 is composed of multiple adjustment layers 310, the adjustment layers 310 will scatter and reflect the light, so that the light is weakened in all directions. In this embodiment, the thickness of the multiple adjustment layers 310 is adjusted to minimize the degree of light attenuation within a specific wavelength range, thereby achieving an anti-transmission effect for light of a specific wavelength and improving transmittance. Furthermore, the thickness of two adjacent adjustment layers 310 is the same, or the thickness of two adjacent adjustment layers 310 is different.

[0056] For example, the thickness of the first adjustment layer 310 can be set to 10 nm, the thickness of the second adjustment layer 310 can be set to 10 nm, and the thickness of the third adjustment layer 310 can be set to 15 nm, that is, the thickness of the two adjacent adjustment layers 310 is the same; the thickness of the first adjustment layer 310 can also be set to 10 nm, the thickness of the second adjustment layer 310 can be set to 12 nm, and the thickness of the third adjustment layer 310 can be set to 15 nm, that is, the thickness of the two adjacent adjustment layers 310 is different. The specific adjustment needs to be made according to the material and anti-reflection degree of the currently superimposed adjustment layer 310.

[0057] Furthermore, the number of the adjustment layers 310 is 15 to 20, and the thickness of each adjustment layer 310 is 10 to 12 nm. In this embodiment, the thickness of the color adjustment film layer 30 is 150-240 nm.

[0058] Example 2

[0059] This embodiment provides a method for preparing a highly permeable silver ion antibacterial cover plate, which comprises:

[0060] S10: Clean the glass substrate 20, and blow dry the glass substrate 20 after cleaning; specifically, prepare a glass substrate 20 of a specified size, the main component of which is silicate glass. Put the glass substrate 20 into a cleaning machine for cleaning, use deionized water and detergent to clean it during the cleaning process, the cleaning time is 15 to 20 minutes, the cleaning temperature is 50°C, ensure that the impurities, stains and dust on the surface of the glass substrate 20 are cleaned, and finally, the glass substrate 20 after cleaning is blown dry with nitrogen to blow away the deionized water and detergent on the surface of the glass substrate 20.

[0061] S20: The glass substrate 20 is subjected to a composite treatment with an antibacterial agent containing silver ions to obtain the antibacterial glass substrate 20. Specifically, the antibacterial agent containing silver ions is evenly coated on the touch surface of the glass substrate 20, and the coating thickness of the antibacterial agent is 0.1 mm. Then, the glass substrate 20 coated with the antibacterial agent is placed in a high-temperature furnace and sintered at a temperature of 500° C. to 550° C. for 2 hours, so that the antibacterial agent is firmly combined with the glass substrate 20, thereby forming a glass substrate 20 with antibacterial properties.

[0062] S30: preparing a color-adjusting film layer 30 on the antibacterial glass substrate 20, wherein the color-adjusting film layer 30 comprises a combination of at least two oxides, and the wavelength of the reflection color of the color-adjusting film layer 30 is 400nm to 480nm, and the yellow color generated by the antibacterial glass substrate 20 is neutralized by blue or bluish purple or purple to solve the yellowing problem.

[0063] In addition to the above steps S10 and S20 for manufacturing the antibacterial glass substrate 20 , the antibacterial glass substrate 20 may be purchased from outside and the color adjustment film layer 30 may be manufactured on the purchased antibacterial glass substrate 20 .

[0064] Preferably, the present embodiment uses magnetron sputtering to prepare the color-adjusting film layer 30 on the antibacterial glass substrate 20. Specifically, the antibacterial glass substrate 20 is placed in a magnetron sputtering device, the sputtering power is set to 80 to 130 W, and the target material is sputtered and deposited on the non-touch surface of the antibacterial glass substrate 20 to form the color-adjusting film layer 30. In addition to the above method, the present application can also use ion beam thermal evaporation to prepare the color-adjusting film layer 30 on the antibacterial glass substrate 20. Among them, the use of magnetron sputtering equipment can accurately control the thickness of the adjustment layer 310 described below.

[0065] Furthermore, the color adjustment film layer 30 includes multiple adjustment layers 310, and the steps of preparing the color adjustment film layer 30 are specifically as follows:

[0066] S31: depositing an adjustment layer 310 on the antibacterial glass substrate 20;

[0067] S32: measuring the b value and transmittance of the Lab color value after the adjustment layer 310 in S31 is combined with the antibacterial glass substrate 20, and determining the material and thickness of the next adjustment layer 310 according to the b value and transmittance;

[0068] S33: depositing a next adjustment layer 310 on the previous adjustment layer 310;

[0069] Steps S31 , S32 and S33 are repeated in sequence until the b value of the Lab color value after the color adjustment film layer 30 formed by stacking multiple adjustment layers 310 and the antibacterial glass substrate 20 is combined reaches a required range.

[0070] Specifically, taking the oxide combination of zinc oxide, titanium oxide, and silicon oxide as an example, the purity of the three oxide targets is 99.9%. When the material of the first adjustment layer 310 is zinc oxide, the target material on the magnetron sputtering device is zinc oxide. During the sputtering process, zinc oxide is ionized into zinc ions and oxygen ions. The zinc ions and oxygen ions are deposited on the non-touch surface of the antibacterial glass substrate 20 under the action of the electric field to form the first adjustment layer 310. The thickness of the first adjustment layer 310 is 10nm. The b1 value and transmittance T1 of the Lab color value after the current first adjustment layer 310 is combined with the antibacterial glass substrate 20 are measured;

[0071] According to the b1 value and the transmittance T1, it is determined that the material of the second adjustment layer 310 is titanium oxide, and the thickness of the second adjustment layer 310 is 12 nm. The target material on the magnetron sputtering device is titanium oxide. During the sputtering process, the titanium oxide is ionized into titanium ions and oxygen ions. The titanium ions and oxygen ions are deposited on the first adjustment layer 310 of the antibacterial glass substrate 20 under the action of the electric field to form the second adjustment layer 310. The b2 value and the transmittance T2 of the Lab color value after the current first and second adjustment layers 310 are combined with the antibacterial glass substrate 20 are measured;

[0072] According to the b2 value and the transmittance T2, it is determined that the material of the third adjustment layer 310 is silicon oxide, and the thickness of the third adjustment layer 310 is 15 nm. The target material on the magnetron sputtering device is silicon oxide. During the sputtering process, silicon oxide is ionized into silicon ions and oxygen ions. The silicon ions and oxygen ions are deposited on the second adjustment layer 310 of the antibacterial glass substrate 20 under the action of the electric field to form the third adjustment layer 310. The b3 value and transmittance T3 of the Lab color value after the current first, second and third adjustment layers 310 are combined with the antibacterial glass substrate 20 are measured;

[0073] The above steps are repeated in sequence until the b value of the Lab color value of the finished product after the color adjustment film layer 30 formed by stacking multiple adjustment layers 310 and combining with the antibacterial glass substrate 20 reaches the required range; wherein, the finished product is generally judged by visual inspection whether it is yellowing. In order to reduce the difference in individual judgment, the present application requires that the b value of the Lab color value of the finished product of the color adjustment film layer 30 and the antibacterial glass be in the range of 0 to 1.

[0074] Due to the advanced nature of the present application, it can be widely used in application fields such as touch screen manufacturing, electronic equipment manufacturing, and environmentally friendly material research and development. First of all, the present application can effectively solve the problem of yellowing of the silver ion antibacterial cover plate, improve the display effect of the touch screen product, and meet the market demand for high-quality touch screen products. Secondly, the present invention uses magnetron sputtering equipment to prepare the color adjustment film layer 30. Compared with the existing method, the preparation process is simple and the cost is low, which is conducive to large-scale production and meets the market demand for efficient and low-cost production methods. Finally, the preparation method of the present invention is environmentally friendly and will not cause pollution to the environment, meeting the market demand for green production. Therefore, the present invention has broad market application prospects and market demand.

[0075] Example 3

[0076] This embodiment is basically the same as Embodiment 2, except that the method for preparing a highly transparent silver ion antibacterial cover plate provided in this embodiment has a different method for preparing the multi-layer adjustment layer 310 .

[0077] The color adjustment film layer 30 includes multiple adjustment layers 310. The steps of preparing the color adjustment film layer 30 are as follows:

[0078] S31': measuring the b value and transmittance of the Lab color value of the current antibacterial glass substrate 20;

[0079] S32′: According to the b value, transmittance and the type of oxide required for making the toning film layer 30, the number of adjustment layers 310, the type and sequence of oxides of each adjustment layer 310 and the thickness of each adjustment layer 310 are determined by matching with a preset comparison table;

[0080] S33 ′: depositing multiple adjustment layers 310 on the antibacterial glass substrate 20 according to the number of adjustment layers 310 , the type and sequence of oxides of each adjustment layer 310 , and the thickness of each adjustment layer 310 determined in step S32 ′.

[0081] Specifically, before the preparation of the color adjustment film layer 30, the b value and transmittance T of the Lab color value of the current antibacterial glass substrate 20 are taken, and the oxide combination of zinc oxide, titanium oxide, and silicon oxide is taken as an example. After knowing that the oxides used to prepare the color adjustment film layer 30 are zinc oxide, titanium oxide, and silicon oxide, the current b value, transmittance T, the number of adjustment layers 310 corresponding to zinc oxide, titanium oxide, and silicon oxide, the type and sequence of oxides of each adjustment layer 310, and the thickness of each adjustment layer 310 are found in the comparison table; finally, magnetron sputtering is performed according to the number of adjustment layers 310, the type and sequence of oxides of each adjustment layer 310, and the thickness of each adjustment layer 310 to prepare the color adjustment film layer 30.

[0082] It should be noted that the above comparison table is obtained based on the applicant's multiple experimental results, and can effectively improve the production efficiency of the toning film layer 30 .

[0083] In the description of the present invention, it is necessary to understand that the terms "vertical", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the protection content of the present invention.

[0084] If the words "first", "second", etc. are used in this document to limit components, those skilled in the art should know that the use of "first" and "second" is only to facilitate the description of the present invention and simplify the description. Unless otherwise stated, the above words have no special meaning.

[0085] The present invention is not limited to the above-mentioned embodiments. If various changes or modifications to the present invention do not depart from the spirit and scope of the present invention, and if these changes and modifications fall within the scope of the claims and equivalent technologies of the present invention, the present invention is also intended to include these changes and modifications.

Claims

1. A highly transparent silver ion antibacterial cover plate, characterized in that: include: Antimicrobial glass substrate; The color-adjusting film layer is arranged on the antibacterial glass substrate. The color-adjusting film layer comprises at least two oxides. The wavelength of the reflection color of the color-adjusting film layer is 400nm to 480nm.

2. The highly permeable silver ion antibacterial cover plate according to claim 1, characterized in that: The oxides include zinc oxide, titanium oxide, zirconium oxide, aluminum oxide and silicon oxide.

3. The highly transparent silver ion antibacterial cover plate according to claim 1, characterized in that: The antibacterial glass substrate has a touch surface and a non-touch surface; The color-adjusting film layer is located on the non-touch surface of the antibacterial glass substrate.

4. The highly permeable silver ion antibacterial cover plate according to claim 1, characterized in that: The color adjustment film layer includes multiple adjustment layers stacked together, wherein: The materials of the two adjacent adjustment layers are the same, or the materials of the two adjacent adjustment layers are different.

5. The highly permeable silver ion antibacterial cover plate according to claim 4, characterized in that: The thicknesses of two adjacent adjustment layers are the same, or the thicknesses of two adjacent adjustment layers are different.

6. The high-transmittance silver ion antibacterial cover plate according to claim 5, characterized in that: The number of the adjustment layers is 15 to 20, and the thickness of each adjustment layer is 10 to 12 nm.

7. A method for preparing a highly permeable silver ion antibacterial cover plate, characterized in that: include: S30: preparing a color-adjusting film layer on the antibacterial glass substrate, wherein the color-adjusting film layer comprises a combination of at least two oxides, and the wavelength of the reflection color of the color-adjusting film layer is 400nm to 480nm.

8. The method for preparing the highly permeable silver ion antibacterial cover plate according to claim 7, characterized in that: The color-adjusting film layer is prepared on the antibacterial glass substrate by using a magnetron sputtering method or an ion beam thermal evaporation method.

9. The method for preparing the highly permeable silver ion antibacterial cover plate according to claim 7 or 8, characterized in that: The color adjustment film layer comprises a plurality of adjustment layers, and the steps of preparing the color adjustment film layer are specifically as follows: S31: depositing an adjustment layer on the antibacterial glass substrate; S32: measuring the b value and transmittance of the Lab color value after the adjustment layer in S31 is combined with the antibacterial glass substrate, and determining the material and thickness of the next adjustment layer according to the b value and the transmittance; S33: depositing a next adjustment layer on the previous adjustment layer; Steps S31, S32 and S33 are repeated in sequence until the b value of the Lab color value after the color adjustment film layer formed by stacking multiple adjustment layers and the antibacterial glass substrate is combined reaches a required range.

10. The method for preparing the highly permeable silver ion antibacterial cover plate according to claim 7 or 8, characterized in that: The color adjustment film layer comprises a plurality of adjustment layers, and the steps of preparing the color adjustment film layer are specifically as follows: S31': measuring the b value and transmittance of the Lab color value of the current antibacterial glass substrate; S32': According to the b value, transmittance and the type of oxide required for making the toning film layer, match with the preset comparison table to determine the number of adjustment layers, the type and sequence of oxides for each adjustment layer and the thickness of each adjustment layer; S33 ′: depositing multiple adjustment layers on the antibacterial glass substrate according to the number of adjustment layers, the type and sequence of oxides of each adjustment layer, and the thickness of each adjustment layer determined in step S32 ′.

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