Coated cover plate capable of enhancing overall hardness and corrosion resistance and display screen

Abstract

The utility model discloses a coated cover plate and a display screen capable of enhancing overall hardness and corrosion resistance, the coated cover plate comprises a glass substrate, a Ni-B-Si alloy coating layer, a chromium carbide coating layer and a cobalt chromium tungsten alloy coating layer, the Ni-B-Si alloy coating layer, the chromium carbide coating layer and the cobalt chromium tungsten alloy coating layer are sequentially stacked on the glass substrate from bottom to top, the thickness of the Ni-B-Si alloy coating layer is 20nm-30nm, and the thickness of the cobalt chromium tungsten alloy coating layer is 20nm-30nm. The thickness of the chromium carbide coating layer is 15-25 nm, and the thickness of the cobalt-chromium-tungsten alloy coating layer is 30-50 nm. The outer layer of the glass substrate adopts the cobalt-chromium-tungsten alloy layer with high hardness and high strength, the chromium carbide layer with excellent wear resistance is combined below the cobalt-chromium-tungsten alloy layer to form a solid protective barrier and effectively resist external scraping and wear, and the Ni-B-Si alloy layer is arranged on the upper surface of the glass substrate and has unique self-fluxing property and good physical and chemical properties, so that the corrosion resistance of the glass substrate is improved, and the service life of the glass substrate is prolonged. And the overall hardness and corrosion resistance are further enhanced. The overall hardness and corrosion resistance of the coated cover plate can be effectively improved, and surface scratching caused by insufficient hardness or poor wear resistance when the coated cover plate is used in a complex use environment is avoided.

Description

Technical Field

[0001] This utility model relates to the field of display technology, and more specifically, to a coated cover plate and display screen that enhance overall hardness and corrosion resistance. Background Technology

[0002] With the rapid development of consumer electronics, the requirements for screen covers are increasing, especially their wear resistance, scratch resistance, and aesthetics, which have become key considerations. Traditional glass covers often suffer from surface scratches due to insufficient hardness and poor wear resistance when facing complex usage environments, affecting user experience and product lifespan. Utility Model Content

[0003] The technical problem to be solved by this utility model is how to improve the overall hardness and corrosion resistance of the coated cover plate, avoid surface scratches due to insufficient hardness or poor wear resistance when dealing with complex usage environments, and improve user experience and product life.

[0004] The technical problem to be solved by this utility model is achieved through the following technical solution:

[0005] To solve the above-mentioned technical problems, this utility model provides a coated cover plate that enhances overall hardness and corrosion resistance. It includes a glass substrate and a Ni-B-Si alloy coating layer, a chromium carbide coating layer, and a cobalt-chromium-tungsten alloy coating layer that are sequentially stacked on the glass substrate from bottom to top. The thickness of the Ni-B-Si alloy coating layer is 20nm-30nm, the thickness of the chromium carbide coating layer is 15nm-25nm, and the thickness of the cobalt-chromium-tungsten alloy coating layer is 30nm-50nm.

[0006] As a preferred embodiment of the coating cover plate that enhances overall hardness and corrosion resistance provided by this utility model, a thermochromic ink layer is provided on the lower surface of the glass substrate located in the non-visible area.

[0007] As a preferred embodiment of the coating cover plate that enhances overall hardness and corrosion resistance provided by this utility model, the thickness of the thermochromic ink layer is 8μm-12μm.

[0008] As a preferred embodiment of the coating cover plate that enhances overall hardness and corrosion resistance provided by this utility model, a chromium boride layer is provided on the lower surface of the thermochromic ink layer.

[0009] As a preferred embodiment of the coated cover plate that enhances overall hardness and corrosion resistance provided by this utility model, the thickness of the chromium boride layer is 30nm-50nm.

[0010] As a preferred embodiment of the coating cover plate that enhances overall hardness and corrosion resistance provided by this utility model, a tantalum carbide layer is provided on the lower surface of the chromium boride layer.

[0011] As a preferred embodiment of the coating cover plate that enhances overall hardness and corrosion resistance provided by this utility model, the thickness of the tantalum carbide layer is 20nm-30nm.

[0012] As a preferred embodiment of the coating cover plate that enhances overall hardness and corrosion resistance provided by this utility model, the thermochromic ink layer is a screen-printed pattern or screen-printed graphic.

[0013] As a preferred embodiment of the coating cover plate that enhances overall hardness and corrosion resistance provided by this utility model, the shape of the thermochromic ink layer is the product logo.

[0014] This utility model provides a display screen, which includes a coated cover plate as described in any of the above claims to enhance overall hardness and corrosion resistance.

[0015] This utility model has the following beneficial effects:

[0016] The outer layer of the glass substrate uses a high-hardness, high-strength cobalt-chromium-tungsten alloy layer, combined with a wear-resistant chromium carbide layer beneath it, forming a robust protective barrier that effectively resists external scratches and wear. A Ni-B-Si alloy layer is applied to the upper surface of the glass substrate, whose unique self-fluxing properties and excellent physicochemical properties further enhance the overall hardness and corrosion resistance. This effectively improves the overall hardness and corrosion resistance of the coated cover, preventing surface scratches caused by insufficient hardness or poor wear resistance in complex operating environments, thus improving user experience and product lifespan. Attached Figure Description

[0017] To more clearly illustrate the solutions in this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This utility model provides a structural schematic diagram of a coated cover plate that enhances overall hardness and corrosion resistance.

[0019] Explanation of icon numbers:

[0020] 1. Glass substrate; 2. Alloy coating layer; 3. Chromium carbide coating layer; 4. Cobalt-chromium-tungsten alloy coating layer; 5. Thermochromic ink layer; 6. Chromium boride layer; 7. Tantalum carbide layer. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0022] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0024] This utility model provides a coated cover plate that enhances overall hardness and corrosion resistance. It includes a glass substrate and a Ni-B-Si alloy coating layer, a chromium carbide coating layer, and a cobalt-chromium-tungsten alloy coating layer, which are sequentially stacked on the glass substrate from bottom to top. The thickness of the Ni-B-Si alloy coating layer is 20nm-30nm, the thickness of the chromium carbide coating layer is 15nm-25nm, and the thickness of the cobalt-chromium-tungsten alloy coating layer is 30nm-50nm.

[0025] The outer layer of the glass substrate uses a high-hardness, high-strength cobalt-chromium-tungsten alloy layer, combined with a wear-resistant chromium carbide layer beneath it, forming a robust protective barrier that effectively resists external scratches and wear. A Ni-B-Si alloy layer is applied to the upper surface of the glass substrate, whose unique self-fluxing properties and excellent physicochemical properties further enhance the overall hardness and corrosion resistance. This effectively improves the overall hardness and corrosion resistance of the coated cover, preventing surface scratches caused by insufficient hardness or poor wear resistance in complex operating environments, thus improving user experience and product lifespan.

[0026] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. The present invention will be described in detail below with reference to the accompanying drawings and embodiments, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0027] Example 1, please refer to Figure 1 This invention provides a coated cover plate that enhances overall hardness and corrosion resistance. It comprises a glass substrate 1 and, from bottom to top, a Ni-B-Si alloy coating layer 2, a chromium carbide coating layer 3, and a cobalt-chromium-tungsten alloy coating layer 4, sequentially stacked on the glass substrate 1. The thickness of the Ni-B-Si alloy coating layer 2 is 20nm-30nm, the thickness of the chromium carbide coating layer 3 is 15nm-25nm, and the thickness of the cobalt-chromium-tungsten alloy coating layer 4 is 30nm-50nm. The outer layer of the glass substrate 1 uses a high-hardness, high-strength cobalt-chromium-tungsten alloy layer, combined with a wear-resistant chromium carbide layer beneath it, forming a robust protective barrier that effectively resists external scratches and wear. The Ni-B-Si alloy layer on the upper surface of the glass substrate 1, with its unique self-fluxing properties and good physicochemical properties, further enhances the overall hardness and corrosion resistance. It can effectively improve the overall hardness and corrosion resistance of the coated cover plate, avoid surface scratches due to insufficient hardness or poor wear resistance when dealing with complex usage environments, and improve user experience and product life.

[0028] Example 2, please refer to Figure 1As a further optimization of Embodiment 1, in this embodiment, a thermochromic ink layer 5 is disposed on the lower surface of the glass substrate 1 located in the non-visible area. The thickness of the thermochromic ink layer 5 is 8μm-12μm. A chromium boride layer 6 is disposed on the lower surface of the thermochromic ink layer 5. The thickness of the chromium boride layer 6 is 30nm-50nm. A tantalum carbide layer 7 is disposed on the lower surface of the chromium boride layer 6. The thickness of the tantalum carbide layer 7 is 20nm-30nm. The thermochromic ink layer 5 on the back side of the glass substrate 1 can be a screen-printed layer, which changes color due to temperature changes, adding fun and interactivity to the product. At the same time, personalized pattern design can be achieved through screen printing, enhancing visual appeal. Below the thermochromic ink layer 5, the chromium boride layer 6, with its high hardness and corrosion resistance, provides effective protection for the thermochromic ink layer 5, preventing scratches and fading. The innermost tantalum carbide layer 7 serves as the ultimate protection, further enhancing the overall wear resistance and chemical stability, ensuring that the entire coating structure maintains excellent performance during long-term use.

[0029] The chemical formula of chromium carbide coating layer 3 is Cr3C2, the chemical formula of cobalt-chromium-tungsten alloy coating layer 4 is Co-Cr-W, the chemical formula of chromium boride layer 6 is CrB2, and the chemical formula of tantalum carbide layer 7 is TaC.

[0030] Furthermore, the thermochromic ink layer 5 is a screen-printed pattern or graphic, and the shape of the thermochromic ink layer 5 is the product logo. Personalized pattern design is achieved through screen printing process, enhancing visual appeal.

[0031] This utility model also provides a display screen, which includes a coated cover plate as described in any of the above claims to enhance overall hardness and corrosion resistance.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] Obviously, the embodiments described above are only some embodiments of this application, not all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application. This application can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this application's specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the scope of patent protection of this application.

Claims

1. A coated cover plate that enhances overall hardness and corrosion resistance, characterized in that, It includes a glass substrate and a Ni-B-Si alloy coating layer, a chromium carbide coating layer, and a cobalt-chromium-tungsten alloy coating layer, which are sequentially stacked on the glass substrate from bottom to top. The thickness of the Ni-B-Si alloy coating layer is 20nm-30nm, the thickness of the chromium carbide coating layer is 15nm-25nm, and the thickness of the cobalt-chromium-tungsten alloy coating layer is 30nm-50nm.

2. The coated cover plate with enhanced overall hardness and corrosion resistance according to claim 1, characterized in that, A thermochromic ink layer is provided on the lower surface of the glass substrate located in the non-visible area.

3. The coated cover plate with enhanced overall hardness and corrosion resistance according to claim 2, characterized in that, The thickness of the thermochromic ink layer is 8μm-12μm.

4. The coated cover plate with enhanced overall hardness and corrosion resistance according to claim 2, characterized in that, A chromium boride layer is disposed on the lower surface of the thermochromic ink layer.

5. The coated cover plate with enhanced overall hardness and corrosion resistance according to claim 4, characterized in that, The thickness of the chromium boride layer is 30nm-50nm.

6. The coated cover plate with enhanced overall hardness and corrosion resistance according to claim 4, characterized in that, A tantalum carbide layer is disposed on the lower surface of the chromium boride layer.

7. The coated cover plate with enhanced overall hardness and corrosion resistance according to claim 6, characterized in that, The thickness of the tantalum carbide layer is 20nm-30nm.

8. The coated cover plate with enhanced overall hardness and corrosion resistance according to claim 2, characterized in that, The thermochromic ink layer is a screen-printed pattern or screen-printed graphic.

9. The coated cover plate with enhanced overall hardness and corrosion resistance according to claim 8, characterized in that, The shape of the thermochromic ink layer is the product logo.

10. A display screen, characterized in that, It includes the coated cover plate that enhances overall hardness and corrosion resistance as described in any one of claims 1-9.

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