Coated glass cover plate with high chemical stability

Abstract

The utility model discloses a coated glass cover plate with strong chemical stability, which comprises a glass cover plate main body, the top of the glass cover plate main body is provided with a coating layer, the coating layer is formed by laminating a base layer, a functional layer and a surface layer, the thickness of the functional layer is greater than that of the base layer, and the thickness of the base layer is greater than that of the surface layer. By accurately controlling the thickness and the refractive index of each layer, specific optical properties such as reflection resistance and anti-reflection can be realized, the base layer formed by silicon dioxide and the functional layer formed by lithium silicate both have good chemical stability and can resist corrosion of chemical substances such as acid and alkali, and meanwhile, the base layer formed by silicon dioxide serves as a substrate, so that the service life of the base layer is prolonged. The surface layer formed by lithium oxide can provide good adhesive force with the glass cover plate main body, the stability and durability of the coating layer are ensured, and the surface layer formed by lithium oxide can enhance the chemical stability again to play a role in corrosion resistance.

Description

Technical Field

[0001] The utility model relates to the technical field of glass cover plates, in particular to a coated glass cover plate with strong chemical stability. Background Art

[0002] The glass cover of electronic products is a transparent lens used to protect the touch screen. It is attached to the outside of the electronic display screen and mainly plays the role of protecting the screen. The glass cover has good light transmittance and special texture, which can enhance the surface hardness and toughness and provide better protection.

[0003] With the rapid development of science and technology, glass cover plates have been widely used in electronic displays, solar products, automotive displays and other fields due to their high transparency, excellent mechanical properties and good chemical stability. However, traditional glass cover plates often cannot meet the growing functional needs and are difficult to perform stably in terms of anti-reflection and anti-corrosion. Utility Model Content

[0004] In order to overcome the above-mentioned shortcomings, the present invention aims to provide a technical solution that can solve the above-mentioned problems.

[0005] To achieve the above objectives, the present invention provides the following technical solutions: a coated glass cover with strong chemical stability, comprising a glass cover body, a coating layer provided on the top of the glass cover body, and the coating layer consisting of a base layer, a functional layer and a surface layer stacked together.

[0006] As a further solution of the present invention: the thickness of the functional layer is thicker than the base layer, and the thickness of the base layer is thicker than the surface layer.

[0007] As a further solution of the present invention: the base layer is plated on the glass cover plate body as a substrate, and the base layer is silicon dioxide.

[0008] As a further solution of the present invention: the coating thickness of the base layer is between 40 nanometers and 70 nanometers.

[0009] As a further solution of the present invention: the functional layer is plated on the base layer as an intermediate layer, and the functional layer is lithium silicate.

[0010] As a further solution of the present invention: the coating thickness of the functional layer is between 80 nanometers and 100 nanometers.

[0011] As a further solution of the present invention: the surface layer is plated on the functional layer as a surface layer, and the surface layer is lithium oxide.

[0012] As a further solution of the present invention: the coating thickness of the surface layer is between 10 nanometers and 20 nanometers.

[0013] As a further solution of the present invention: the two corners of the glass cover plate body close to the top are designed to be rounded structures.

[0014] As a further solution of the present invention: the sides of the base layer, functional layer and surface layer are all flush after being stacked, and the coating layer composed of the base layer, functional layer and surface layer is all flush with the sides of the glass cover plate body.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] In the present application, specific optical properties such as anti-reflection and anti-reflection can be achieved by precisely controlling the thickness and refractive index of each layer, and the base layer composed of silicon dioxide and the functional layer composed of lithium silicate have good chemical stability and can resist corrosion by acid, alkali and other chemical substances. At the same time, the base layer composed of silicon dioxide as a substrate can provide good adhesion to the glass cover plate body, ensuring the stability and durability of the coating layer, and the surface layer composed of lithium oxide can further enhance the chemical stability and play an anti-corrosion role, especially the glass cover plate on the marine display screen, which has good resistance to contact with seawater and salt spray. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the laminated structure of the coating layer on the glass cover plate body of the utility model;

[0018] Figure 2 This utility model Figure 1 A in the figure shows the enlarged structural diagram;

[0019] Figure 3 It is a schematic diagram of the top structure of the glass cover plate main body of the utility model.

[0020] The reference numerals and names in the figures are as follows:

[0021] 1. Glass cover body; 2. Base layer; 3. Functional layer; 4. Surface layer. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-3A coated glass cover with strong chemical stability includes a glass cover body 1. The two corners of the glass cover body 1 near the top are designed to be chamfered. A coating layer is provided on the top of the glass cover body 1. The coating layer is composed of a base layer 2, a functional layer 3 and a surface layer 4 stacked together.

[0024] See also Figure 1-2 In this embodiment, the thickness of the functional layer 3 is thicker than that of the base layer 2 , and the thickness of the base layer 2 is thicker than that of the surface layer 4 .

[0025] Specifically, by adjusting the thickness and combination of each layer, different functional requirements can be achieved, such as anti-scratch, anti-fingerprint, self-cleaning, etc., which provides a broader space for the application of the glass cover body 1.

[0026] See also Figure 1-2 In this embodiment, a base layer 2 is plated on the glass cover plate body 1 as a substrate, and the base layer 2 is silicon dioxide; the coating thickness of the base layer 2 is between 40 nanometers and 70 nanometers.

[0027] Specifically, the base layer 2 composed of silicon dioxide, as a substrate, provides good adhesion and chemical stability to the glass cover plate body 1 .

[0028] See also Figure 1-2 In this embodiment, the functional layer 3 is plated on the base layer 2 as an intermediate layer, and the functional layer 3 is lithium silicate; the coating thickness of the functional layer 3 is between 80 nanometers and 100 nanometers.

[0029] Specifically, the functional layer 3 composed of lithium silicate can effectively enhance the chemical stability of the coating layer.

[0030] See also Figure 1-2 In this embodiment, the surface layer 4 is plated on the functional layer 3 as a surface layer, and the surface layer 4 is lithium oxide; the coating thickness of the surface layer 4 is between 10 nanometers and 20 nanometers.

[0031] Specifically, the surface layer 4 composed of lithium oxide can further enhance the chemical stability and play a role in corrosion resistance, especially the cover plate on the navigation display screen, which has resistance to contact with seawater and salt spray.

[0032] See also Figure 1-3 In this embodiment, the side surfaces of the base layer 2, the functional layer 3 and the surface layer 4 are all in a flush state after being stacked, and the coating layer composed of the base layer 2, the functional layer 3 and the surface layer 4 is all in a flush state with the side surfaces of the glass cover plate body 1.

[0033] Specifically, the side surfaces of the base layer 2 , the functional layer 3 and the surface layer 4 are flush with each other and with the glass cover plate body 1 , which can reduce the overflow of each layer that affects the appearance and ensure the aesthetics of the product.

[0034] In summary, the glass cover coating technology proposed in this application utilizes chemical substances such as lithium oxide (Li2O), lithium silicate (Li4SiO4) and silicon dioxide (SiO2) to form a multi-layer coating layer on the glass cover body 1 through a specific coating process. First, silicon dioxide is used as a substrate, and its good adhesion to glass and chemical stability are utilized to provide stable support for subsequent coating layers. Then, by precisely controlling the thickness and refractive index of the lithium silicate layer, specific optical properties such as anti-reflection and anti-reflection are achieved. Finally, a lithium oxide layer is added to the outermost layer of the coating layer to provide additional chemical stability and serve as an interface layer with other coatings. This multi-layer coating layer not only has excellent optical properties, but also has good chemical stability and durability, and can meet application requirements in various complex environments. In addition, by adjusting the thickness and combination of each layer, different functional requirements such as anti-scratch, anti-fingerprint, self-cleaning, etc. can also be achieved, providing a broader space for the application of glass cover panels.

[0035] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A coated glass cover with strong chemical stability, characterized in that: The invention comprises a glass cover plate main body (1), wherein a coating layer is provided on the top of the glass cover plate main body (1), and the coating layer is composed of a base layer (2), a functional layer (3) and a surface layer (4) stacked together.

2. The coated glass cover plate with strong chemical stability according to claim 1, characterized in that: The thickness of the functional layer (3) is thicker than that of the base layer (2), and the thickness of the base layer (2) is thicker than that of the surface layer (4).

3. The coated glass cover plate with strong chemical stability according to claim 1, characterized in that: The base layer (2) is plated on the glass cover plate main body (1) as a substrate, and the base layer (2) is silicon dioxide.

4. The coated glass cover plate with strong chemical stability according to claim 1, characterized in that: The coating thickness of the base layer (2) is between 40 nanometers and 70 nanometers.

5. The coated glass cover plate with strong chemical stability according to claim 1, characterized in that: The functional layer (3) is plated on the base layer (2) as an intermediate layer, and the functional layer (3) is lithium silicate.

6. The coated glass cover plate with strong chemical stability according to claim 1, characterized in that: The coating thickness of the functional layer (3) is between 80 nanometers and 100 nanometers.

7. The coated glass cover plate with strong chemical stability according to claim 1, characterized in that: The surface layer (4) is plated on the functional layer (3) as a surface layer, and the surface layer (4) is lithium oxide.

8. The coated glass cover plate with strong chemical stability according to claim 1, characterized in that: The coating thickness of the surface layer (4) is between 10 nanometers and 20 nanometers.

9. The coated glass cover plate with strong chemical stability according to claim 1, characterized in that: The two corners of the glass cover plate body (1) close to the top are both designed to be rounded structures.

10. The coated glass cover plate with strong chemical stability according to claim 1, characterized in that: After being stacked, the sides of the base layer (2), the functional layer (3) and the surface layer (4) are all in a flush state, and the coating layer composed of the base layer (2), the functional layer (3) and the surface layer (4) are all in a flush state with the sides of the glass cover plate body (1).

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