Coated glass cover plate and liquid crystal display module

Abstract

The utility model discloses a kind of coated glass cover plate and liquid crystal display module, coated glass cover plate includes glass substrate and the multilayer coating structure of the glass substrate surface, it is characterized by: the multilayer coating structure includes boron chromium layer, chromium carbide layer, tantalum carbide layer, which is sequentially stacked from the glass substrate outer surface, can provide stability and wear resistance for glass substrate, further include temperature-sensitive color-changing ink layer, the temperature-sensitive color-changing ink layer is set on the non-visible area of glass substrate inner surface edge, temperature-sensitive color-changing ink layer can change color according to temperature change.An innovative cover plate coating layer structure, by combining tantalum carbide, chromium carbide, boron chromium and other high-performance materials, and combining temperature-sensitive color-changing ink and niobium nitride layer, aims to comprehensively improve the wear resistance, aesthetic degree and durability of cover plate, meet the needs of high-end electronic products.

Description

Technical Field

[0001] This utility model relates to the field of liquid crystal display technology, and in particular to a coated glass cover plate and a liquid crystal display module. Background Technology

[0002] The glass cover is the outermost transparent glass component of an LCD screen, serving as the surface protective layer of the LCD module. It primarily protects the underlying LCD screen assembly and optimizes functionality. Typically made from ultra-thin flat glass through cutting, strengthening, and coating processes, it is the part of the LCD module that directly contacts the external environment. Structurally, it may independently cover the screen or be integrated with the casing for overall protection. The core functions of the glass cover include: 1. Physical protection: resisting external impacts and scratches, preventing screen failure due to mechanical damage; isolating environmental pollutants such as dust and oil, extending screen lifespan. 2. Touch optimization: providing a smooth touch experience; some high-end covers achieve fingerprint resistance through surface treatment, reducing fingerprint residue. 3. Reducing strong light reflection interference, enhancing light transmittance and display contrast. 4. Structural and integration adaptation: integrating decorative printing and touch sensors, supporting narrow bezel designs; using full lamination technology to eliminate air gaps, avoiding diffuse reflection and improving water resistance.

[0003] With the widespread application of technological products, especially portable electronic devices such as smartphones and tablets, the performance requirements for the glass covers on their displays are becoming increasingly stringent. The market demand for high-performance, durable covers with intelligent sensing capabilities is growing. Currently, traditional glass covers can no longer meet the basic protective needs of these products, and improvements are still needed in areas such as scratch resistance, abrasion resistance, corrosion resistance, and aesthetics. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of the existing technology by providing a coated glass cover and a liquid crystal display module.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] In a first aspect, a coated glass cover is provided, comprising a glass substrate and a multilayer coated structure disposed on the surface of the glass substrate, characterized in that: the multilayer coated structure comprises a chromium boride layer, a chromium carbide layer, and a tantalum carbide layer stacked sequentially upward from the outer surface of the glass substrate, which can provide stability and wear resistance to the glass substrate, and further comprises a thermochromic ink layer disposed on a non-visible area at the edge of the inner surface of the glass substrate, the thermochromic ink layer being able to change color according to temperature changes.

[0007] Furthermore, it also includes a transparent acrylic layer and a semi-transparent plastic layer. The transparent acrylic layer is disposed outside the tantalum carbide layer, and the semi-transparent plastic layer is a number of long strip structures that are uniformly embedded in the transparent acrylic layer and can refract backlight shining on it.

[0008] Furthermore, the cross-section of the semi-transparent plastic layer is an equilateral triangle.

[0009] Furthermore, the maximum thickness of the semi-transparent plastic layer is 0.15 mm.

[0010] Furthermore, the thickness of the transparent acrylic layer is 0.5 mm.

[0011] Furthermore, the surface of the thermochromic ink layer is provided with a niobium nitride layer, which can protect the thermochromic ink layer from scratches and maintain its stability. The thickness of the niobium nitride layer is 10-20 nm.

[0012] Furthermore, the thickness of the chromium boride layer is 30-50 nm.

[0013] Furthermore, the thickness of the chromium carbide layer is 15-25 nm.

[0014] Furthermore, the thickness of the tantalum carbide layer is 20-30 nm.

[0015] In a second aspect, a liquid crystal display module is provided, characterized in that it includes a backlight module and the coated glass cover plate described in the first aspect, wherein the backlight module is disposed on the inner side of the coated glass cover plate.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] The cover glass employs a multi-layer coating technology, with each layer's materials carefully selected and optimized. The outermost layer on the front is a tantalum carbide layer, whose high hardness and wear resistance significantly enhance the glass surface's scratch resistance. Next is a chromium carbide layer, further strengthening wear resistance and protecting the underlying structure. The bottom layer, chromium boride, not only boasts high hardness but also excellent thermal stability and corrosion resistance, effectively resisting the effects of harsh environments. The back border area utilizes thermochromic ink screen printing technology, giving the product a unique sense of fun and interactivity. The flexible screen printing process also enhances the product's aesthetics. To prevent damage to the ink layer, a niobium nitride layer is added beneath the ink area, utilizing its high hardness and wear resistance to protect the ink layer from scratches and extend its lifespan. This multi-layer coating structure, through scientific combination and rational layout, achieves a comprehensive upgrade in cover glass performance, meeting the market's demand for high-performance cover glass.

[0018] Other features and advantages of this invention will be set forth in the following description or may be learned by practicing this invention. Attached Figure Description

[0019] Figure 1 This is a cross-sectional structural diagram of Embodiment 1 of the present utility model;

[0020] Figure 2 This is a schematic diagram of the front structure of Embodiment 1;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of Example 2.

[0022] In the diagram: 1-glass substrate, 2-chromium boride layer, 3-chromium carbide layer, 4-tantalum carbide layer, 5-thermochromic ink layer, 6-transparent acrylic layer, 7-semi-transparent plastic layer, 8-niobium nitride layer, 9-backlight module. Detailed Implementation

[0023] To enhance understanding of this utility model, we will now describe it in further detail with reference to the accompanying drawings. This embodiment is only used to explain this utility model and does not constitute a limitation on the scope of protection of this utility model.

[0024] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," "fixing," and "setting," 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 or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] Example 1

[0027] like Figure 1 , 2 As shown, a coated glass cover includes a glass substrate 1 and a multilayer coating structure disposed on the surface of the glass substrate 1. The multilayer coating structure includes a chromium boride layer 2, a chromium carbide layer 3, and a tantalum carbide layer 4 stacked sequentially upward from the outer surface of the glass substrate 1, which can provide stability and wear resistance to the glass substrate 1.

[0028] The chromium boride layer 2 is deposited on the upper surface of the glass substrate 1, with a thickness of 30-50 nm. Chromium boride not only has high hardness, but also good thermal stability and corrosion resistance, effectively resisting the effects of high temperature and corrosive environments on the glass cover.

[0029] A chromium carbide layer 3 with a thickness of 15-25 nm is plated on the upper surface of the chromium boride layer 2. Chromium carbide also has high hardness and wear resistance, which can further enhance the scratch resistance of the glass cover, while its chemical stability also helps to protect the underlying structure.

[0030] A tantalum carbide layer 4 with a thickness of 20-30 nm is plated on the upper surface of the chromium carbide layer 3. As the top layer of the glass cover, tantalum carbide has very high hardness and wear resistance, which can significantly improve the scratch resistance and wear resistance of the glass cover surface, while also having good chemical and thermal stability.

[0031] Preferably, a transparent acrylic layer 6 and a semi-transparent plastic layer 7 are further provided on the upper surface of the multi-layer coated structure. The transparent acrylic layer 6, with a thickness of 0.5 mm, is 3D printed onto the upper surface of the tantalum carbide layer 4 and supports the semi-transparent plastic layer 7 above. The semi-transparent plastic layer 7 consists of several elongated structures, uniformly and parallelly embedded in the transparent acrylic layer 6. The cross-section of the semi-transparent plastic layer 7 is an equilateral triangle, with a maximum thickness of 0.15 mm. When backlight shines from the underside of the glass cover, it refracts different colors of light onto the glass cover due to the triangular cross-sectional structure of the semi-transparent plastic layer 7. Combined with the backlight module 9, this transforms the glass cover into a decorative cover.

[0032] It also includes a thermochromic ink layer 5, which is disposed around the non-visible area of ​​the lower surface edge of the glass substrate 1. The thermochromic ink layer 5 can change color according to temperature changes, increasing the fun and interactivity of the product. At the same time, the screen printing process is flexible and can design a variety of patterns and colors, improving the aesthetics of the product.

[0033] A niobium nitride layer 8 with a thickness of 10-20 nm is deposited on the lower surface of the thermochromic ink layer 5. As a material with high hardness and high wear resistance, niobium nitride can effectively prevent the thermochromic ink layer 5 from being scratched. At the same time, its chemical stability and thermal stability can also protect the thermochromic ink layer 5 from environmental influences and extend its service life.

[0034] Example 2

[0035] like Figure 3As shown, a liquid crystal display module includes a backlight module 9 and a coated glass cover plate as described in Embodiment 1. The backlight module 9 is disposed on the lower side of the coated glass cover plate. The backlight module 9 is a multi-color flashing backlight, which, together with the coated glass cover plate above, can refract different colors of light.

[0036] The above specific embodiments are only for illustrating the technical concept and structural features of this utility model, and are intended to enable those skilled in the art to implement them. However, the above content does not limit the protection scope of this utility model. Any equivalent changes or modifications made in accordance with the spirit and essence of this utility model shall fall within the protection scope of this utility model.

Claims

1. A coated glass cover, comprising a glass substrate (1) and a multilayer coated structure disposed on the surface of the glass substrate (1), characterized in that: The multilayer coating structure includes a chromium boride layer (2), a chromium carbide layer (3), and a tantalum carbide layer (4) stacked sequentially from the outer surface of the glass substrate (1) upwards, which can provide stability and wear resistance to the glass substrate (1). It also includes a thermochromic ink layer (5), which is disposed on the non-visible area of ​​the inner surface edge of the glass substrate (1). The thermochromic ink layer (5) can change color according to temperature changes.

2. The coated glass cover plate according to claim 1, characterized in that: It also includes a transparent acrylic layer (6) and a semi-transparent plastic layer (7). The transparent acrylic layer (6) is disposed on the outside of the tantalum carbide layer (4). The semi-transparent plastic layer (7) is a number of long strip structures that are uniformly embedded in the transparent acrylic layer (6) and can refract backlight shining on it.

3. The coated glass cover plate according to claim 2, characterized in that: The cross-section of the semi-transparent plastic layer (7) is an equilateral triangle.

4. The coated glass cover plate according to claim 3, characterized in that: The maximum thickness of the semi-transparent plastic layer (7) is 0.15 mm.

5. The coated glass cover plate according to claim 2, characterized in that: The thickness of the transparent acrylic layer (6) is 0.5 mm.

6. The coated glass cover plate according to claim 1, characterized in that: The surface of the thermochromic ink layer (5) is provided with a niobium nitride layer (8), which can protect the thermochromic ink layer (5) from scratches and maintain stability. The thickness of the niobium nitride layer (8) is 10-20 nm.

7. The coated glass cover plate according to claim 1, characterized in that: The thickness of the chromium boride layer (2) is 30-50 nm.

8. The coated glass cover plate according to claim 1, characterized in that: The thickness of the chromium carbide layer (3) is 15-25 nm.

9. The coated glass cover plate according to claim 1, characterized in that: The thickness of the tantalum carbide layer (4) is 20-30 nm.

10. A liquid crystal display module, characterized in that: It includes a backlight module (9) and a coated glass cover as described in any one of claims 1-9, wherein the backlight module (9) is disposed on the inner side of the coated glass cover.

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