Modularized film-coated cover plate with electromagnetic shielding and display module

Abstract

The utility model relates to a modularized film-coated cover plate with electromagnetic shielding and a display module, the film-coated cover plate comprises a first film-coated layer, a glass cover plate, a thermochromic ink layer, a second film-coated layer, a first plastic block and a second plastic block which are arranged in sequence, the first plastic block and the second plastic block are arranged on the same side of the second coating layer in parallel; the first plastic block is arranged at one end of the second coating layer; the second plastic block is arranged at the other end of the second coating layer, a plastic groove is formed in the second plastic block, the size of the plastic groove is matched with that of the first plastic block, and the plastic groove is used for placing the first plastic block adjacent to the coating cover plate; according to the utility model, different material layers are plated on the glass cover plate, so that not only can the wear resistance of the glass cover plate be obviously enhanced, but also the front surface of the glass cover plate has heat dissipation and electromagnetic shielding properties, and the modularized assembly of the film-plated cover plate can be realized, thereby solving the defects in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of display screen manufacturing technology, and in particular to a modular coated cover plate with electromagnetic shielding and a display module. Background Technology

[0002] With the rapid development of consumer electronics, the performance requirements for display cover plates are increasing. While traditional glass cover plates can meet basic protection needs, they have limitations in terms of wear resistance, scratch resistance, corrosion resistance, and visual effects. Especially in high-end markets such as smartphones, tablets, and automotive displays, users not only expect products to have excellent durability but also pursue unique aesthetic experiences and interactive functions. In addition, when assembling traditional glass cover plates into cover plate display modules, liquid optical adhesive is required to fix the glass cover plate and the display screen, and the adhesive needs to be cured. Furthermore, a double-sided adhesive ring is needed around the backlight edge to seal it to the glass cover plate. Therefore, developing a new type of coated cover plate that integrates wear resistance, heat dissipation, electromagnetic shielding, and modular assembly has become a focus of industry attention.

[0003] The above problems urgently need to be addressed. Summary of the Invention

[0004] This utility model discloses a modular coated cover plate and display module with electromagnetic shielding, aiming to solve the technical problems existing in the prior art.

[0005] The present invention adopts the following technical solution:

[0006] On one hand, this utility model provides a modular coated cover plate with electromagnetic shielding. The coated cover plate includes a first coated layer, a glass cover plate, a thermochromic ink layer, a second coated layer, a first plastic block, and a second plastic block arranged sequentially. The first plastic block and the second plastic block are arranged parallel to each other on the same side of the second coated layer. The first coated layer is disposed on the surface of the glass cover plate to enhance the wear resistance, heat dissipation, and electromagnetic shielding performance of the glass cover plate surface. The second coated layer is used to enhance the wear resistance of the thermochromic ink layer. The first plastic block is disposed at one end of the second coated layer. The second plastic block is disposed at the other end of the second coated layer. A plastic groove is provided on the second plastic block, the groove matching the size of the first plastic block, for placing the first plastic block adjacent to the coated cover plate.

[0007] In some preferred embodiments, the first coating layer includes a vanadium nitride layer, a niobium carbide layer, and a copper-chromium-zirconium alloy layer disposed sequentially. The vanadium nitride layer is disposed on the surface of the glass cover plate to enhance its wear resistance and anti-reflection properties. The niobium carbide layer is disposed on the surface of the vanadium nitride layer to enhance the wear resistance of the glass cover plate. The copper-chromium-zirconium alloy layer is disposed on the surface of the niobium carbide layer to enhance the heat dissipation capacity and electromagnetic shielding performance of the glass cover plate.

[0008] In some preferred embodiments, the thickness of the vanadium nitride layer is 50-70 nm.

[0009] In some preferred embodiments, the thickness of the niobium carbide layer is 30-50 nm.

[0010] In some preferred embodiments, the thickness of the copper-chromium-zirconium alloy layer is 100-150 nm.

[0011] In some preferred embodiments, the thickness of the thermochromic ink layer is 8-12 μm.

[0012] In some preferred embodiments, the second coating layer includes a niobium nitride layer and a tantalum carbide layer disposed sequentially, the niobium nitride layer being disposed on the surface of the thermochromic ink layer, the tantalum carbide layer being disposed on the surface of the niobium nitride layer, and the niobium nitride layer and the tantalum carbide layer being used to enhance the wear resistance of the thermochromic ink layer.

[0013] In some preferred embodiments, the thickness of the niobium nitride layer is 10-20 nm.

[0014] In some preferred embodiments, the thickness of the tantalum carbide layer is 5-10 nm.

[0015] Secondly, this utility model provides a display module, which includes the aforementioned coated cover plate.

[0016] The technical solution adopted in this utility model can achieve the following beneficial effects:

[0017] This utility model mainly provides a modular coated cover plate and display module with electromagnetic shielding. The coated cover plate includes: a first coated layer, a glass cover plate, a thermochromic ink layer, a second coated layer, a first plastic block, and a second plastic block arranged sequentially, wherein the first plastic block and the second plastic block are arranged parallel to each other on the same side of the second coated layer; the first coated layer is used to enhance the wear resistance, heat dissipation, and electromagnetic shielding performance of the glass cover plate surface; the second coated layer is used to enhance the wear resistance of the thermochromic ink layer; the first plastic block is disposed at one end of the second coated layer; The second plastic block is disposed at the other end of the second coating layer. The second plastic block has a plastic groove that matches the size of the first plastic block and is used to place the first plastic block of the adjacent coated cover plate. By coating different material layers on the glass cover plate, not only can the wear resistance of the glass cover plate be significantly enhanced, but the surface of the glass cover plate can also have heat dissipation and electromagnetic shielding properties. By placing the first plastic block of one glass cover plate into the plastic groove of the adjacent cover plate, the modular assembly of the coated cover plate is realized, which solves the shortcomings of the prior art and can meet the market demand for high-performance cover plates. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below, forming part of this utility model. The illustrative embodiments of this utility model and their descriptions explain this utility model and do not constitute an improper limitation of this utility model. In the accompanying drawings:

[0019] Figure 1 A front view of a glass cover plate provided in an embodiment of the present utility model;

[0020] Figure 2 This is a side view of a coated cover plate provided in one embodiment of the present invention.

[0021] Explanation of reference numerals in the attached figures:

[0022] 10. Glass cover plate; 20. First coating layer; 21. Vanadium nitride layer; 22. Niobium carbide layer; 23. Copper-chromium-zirconium alloy layer; 30. Thermochromic ink layer; 40. Second coating layer; 41. Niobium nitride layer; 42. Tantalum carbide layer; 50. First plastic block; 60. Second plastic block; 61. Plastic groove. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. In the description of this utility model, it should be noted that the term "or" is generally used to include the meaning of "and / or," unless otherwise expressly stated otherwise.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or a magnetic connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this application, the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, "a plurality of" means at least two, such as two, three, or more, unless otherwise explicitly specified.

[0025] Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] With the rapid development of consumer electronics, traditional glass covers, while meeting basic protection needs, have limitations in terms of wear resistance, scratch resistance, corrosion resistance, and visual appeal. Especially in high-end markets such as smartphones, tablets, and automotive displays, users not only expect products to have superior durability but also seek unique aesthetic experiences and interactive functions.

[0027] To address the problems existing in the prior art, this application / utility model provides a modular coated cover plate with electromagnetic shielding. Figure 1 A front view of a glass cover plate provided in an embodiment of the present utility model; Figure 2 This is a side view of a coated cover plate provided according to an embodiment of the present invention. Figure 1-2 As shown, the coated cover plate includes a first coated layer 20, a glass cover plate 10, a thermochromic ink layer 30, a second coated layer 40, a first plastic block 50, and a second plastic block 60 arranged sequentially. The first plastic block 50 and the second plastic block 60 are arranged parallel to each other on the same side of the second coated layer 40. The first coated layer 20 is used to enhance the wear resistance, heat dissipation, and electromagnetic shielding performance of the surface of the glass cover plate 10. The second coated layer 40 is used to enhance the wear resistance of the thermochromic ink layer 30. The first plastic block 50 is disposed at one end of the second coated layer 40. The second plastic block 60 is disposed at the other end of the second coated layer 40. The second plastic block 60 is provided with a plastic groove 61, which matches the size of the first plastic block 50 and is used to place the first plastic block 50 adjacent to the coated cover plate.

[0028] Preferably, when multiple glass cover plates 10 are assembled, the first plastic block 50 of the glass cover plate 10 is placed into the plastic groove 61 of the adjacent glass cover plate 10. The modular assembly of the coated cover plate can be realized without additional mechanical parts to assemble multiple glass cover plates 10. The assembly is simple and convenient. By coating different material layers on the glass cover plate 10, not only can the wear resistance of the glass cover plate 10 be significantly enhanced, but the front of the glass cover plate 10 can also have heat dissipation and electromagnetic shielding properties.

[0029] In some preferred embodiments, the first coating layer 20 includes a vanadium nitride layer 21, a niobium carbide layer 22, and a copper-chromium-zirconium alloy layer 23. The vanadium nitride layer 21 is disposed on the surface of the glass cover plate 10 and is used to enhance the wear resistance and anti-reflection properties of the glass cover plate 10. The niobium carbide layer 22 is disposed on the surface of the vanadium nitride layer 21 and is used to enhance the wear resistance of the glass cover plate 10. The copper-chromium-zirconium alloy layer 23 is disposed on the surface of the niobium carbide layer 22 and is used to enhance the heat dissipation capacity and electromagnetic shielding performance of the glass cover plate 10.

[0030] In some preferred embodiments, the thickness of the vanadium nitride layer 21 is 50-70 nm.

[0031] Preferably, vanadium nitride is a composite alloy containing vanadium, nitrogen, and carbon, typically in the form of a black powder. Compared to vanadium metal, vanadium nitride exhibits higher hardness and melting point, as well as better corrosion resistance. Furthermore, vanadium nitride possesses excellent thermal and electrical conductivity. Depositing a 50-70 nm thick vanadium nitride layer 21 onto the glass cover 10 significantly enhances the scratch and wear resistance of the glass cover 10 surface, maintains stable performance under various environments, and also provides some anti-reflective properties, improving visual appeal.

[0032] In some preferred embodiments, the thickness of the niobium carbide layer 22 is 30-50 nm.

[0033] Preferably, niobium carbide is a green cubic crystal with a metallic luster, possessing a high melting point, high hardness (microhardness up to 235 GPa, harder than corundum, and one of the hardest known materials), and chemical stability (stable at 1000–1100°C, but rapidly oxidizes to niobium pentoxide above 1100°C). Therefore, depositing a niobium carbide layer 22 on the vanadium nitride layer 21 significantly enhances the scratch resistance and wear resistance of the glass cover plate 10 surface, and provides strong chemical stability at high temperatures of 1000–1100°C.

[0034] In some preferred embodiments, the thickness of the copper-chromium-zirconium alloy layer 23 is 100-150 nm.

[0035] Preferably, copper-chromium-zirconium alloy, also known as chromium-zirconium copper, is a high-performance alloy material used in the copper processing industry. It is mainly composed of copper, chromium, and zirconium. Copper-chromium-zirconium alloy has high hardness and strength, making it a wear-resistant copper material with exceptional hardness. This alloy has an electrical conductivity ≥80% IACS, exhibiting good electrical and thermal conductivity. It maintains stable performance for extended periods in humid and corrosive environments, demonstrating excellent corrosion and wear resistance. It can be formed through forging, die casting, and stretching, and also exhibits good weldability. Even at operating temperatures up to 200℃, it maintains good performance, exhibiting good thermal stability and a wide aging range, allowing for long-term use at high temperatures (100–250℃). Therefore, a 100-150nm thick copper-chromium-zirconium alloy layer 23 is further deposited on the niobium carbide layer 22 to further enhance the strength and durability of the glass cover 10. Since the alloy's electrical and thermal conductivity contribute to heat dissipation and electromagnetic shielding, it can further improve the overall performance of the product.

[0036] In some preferred embodiments, the thickness of the thermochromic ink layer 30 is 8-12 μm.

[0037] Preferably, thermochromic inks can change color according to temperature changes, increasing the fun and interactivity of products. Through screen printing, a variety of patterns and colors can be designed to enhance the aesthetics of products.

[0038] In some preferred embodiments, the second coating layer 40 includes a niobium nitride layer 41 and a tantalum carbide layer 42 disposed sequentially. The niobium nitride layer 41 is disposed on the surface of the thermochromic ink layer 30 and enhances the wear resistance of the thermochromic ink layer 30. The tantalum carbide layer 42 is disposed on the surface of the niobium nitride layer 41 and enhances the wear resistance of the thermochromic ink layer 30.

[0039] In some preferred embodiments, the thickness of the niobium nitride layer 41 is 10-20 nm.

[0040] Preferably, niobium nitride is a high-hardness, high-wear-resistant material with high thermal and chemical stability and resistance to neutron radiation. It can effectively prevent the thermochromic ink layer 30 from being scratched. Therefore, depositing a 10-20nm thick niobium nitride layer 41 can not only protect the thermochromic ink layer 30 from environmental influences, but also extend the service life of the thermochromic ink layer 30.

[0041] In some preferred embodiments, the thickness of the tantalum carbide layer 42 is 5-10 nm.

[0042] Preferably, tantalum carbide is a light brown metallic cubic crystalline powder with a high melting point (3880℃), high hardness (Mohs hardness 9, close to diamond) and excellent chemical stability. Therefore, depositing a tantalum carbide layer 42 on the niobium nitride layer 41 can effectively prevent the thermochromic ink layer 30 from being scratched and extend the service life of the thermochromic ink layer 30.

[0043] Preferably, vanadium nitride layer 21 and niobium carbide layer 22 are deposited on the surface of glass cover plate 10, and niobium nitride layer 41 and tantalum carbide layer 42 are deposited on the thermochromic ink layer 30 on the back of glass cover plate 10, together providing excellent wear resistance and effectively protecting glass cover plate 10 and thermochromic ink layer 30 from scratches; the thermochromic ink increases the fun and interactivity of the product, while the screen printing process can customize various patterns, enhancing the visual appeal of the product; copper chromium zirconium alloy layer 23 provides glass cover plate 10 with excellent mechanical properties and corrosion resistance, and niobium nitride layer 41, niobium carbide layer 22, and tantalum carbide layer 42 together play a role in extending the service life of glass cover plate 10; the selection and combination of multi-layer materials not only enhances the physical properties of the cover plate, but also improves its thermal conductivity and electromagnetic shielding performance to a certain extent.

[0044] Secondly, this utility model provides a display module, which includes the aforementioned coated cover plate.

[0045] This invention achieves a comprehensive improvement in the performance of the glass cover 10 by combining materials with different properties. First, a vanadium nitride layer 21 and a niobium carbide layer 22 are deposited on the surface of the glass cover 10. Utilizing the high hardness and wear resistance of vanadium nitride and niobium carbide, the scratch resistance and wear resistance of the glass cover 10 surface are significantly enhanced, while maintaining good chemical and thermal stability. Next, a copper-chromium-zirconium alloy layer 23 is deposited on top of the niobium carbide layer 22. This alloy not only possesses excellent mechanical properties and corrosion resistance but also electrical and thermal conductivity, which helps improve the product's heat dissipation performance and electromagnetic shielding capabilities. A thermochromic ink layer 30 is screen-printed on the border area on the back of the glass cover 10, giving the product a unique sense of fun and interactivity. At the same time, the screen-printing process is flexible and versatile, allowing for the customization of diverse patterns and enhancing the product's aesthetics. To prevent damage to the thermochromic ink layer 30, a niobium nitride layer 41 and a tantalum carbide layer 42 are deposited under the thermochromic ink layer 30. These two high-hardness and high-wear-resistant materials can effectively prevent the thermochromic ink layer 30 from being scratched and protect it from environmental influences, extending its service life and achieving a comprehensive improvement in wear resistance, aesthetics, durability and performance.

[0046] Furthermore, a first plastic block 50 and a second plastic block 60 are respectively provided on both sides of the bottom of the second coating layer 40. The second plastic block 60 is provided with a plastic groove 61. When multiple glass cover plates 10 are assembled, the first plastic block 50 of one of the glass cover plates 10 is placed into the plastic groove 61 of the adjacent glass cover plate 10. Multiple glass cover plates 10 can be assembled without additional mechanical parts, which can form large cover plates of different sizes. This avoids the need to make independent molds for each size of cover plate. Only the cover plate module needs to be molded, which is convenient for assembly and reduces production costs.

[0047] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of the present invention.

Claims

1. A modular coated cover plate with electromagnetic shielding, characterized by, The coated cover plate includes a first coated layer, a glass cover plate, a thermochromic ink layer, a second coated layer, a first plastic block, and a second plastic block arranged in sequence, wherein the first plastic block and the second plastic block are arranged in parallel on the same side of the second coated layer. The first coating layer is used to enhance the wear resistance, heat dissipation, and electromagnetic shielding performance of the glass cover surface; The second coating layer is used to enhance the abrasion resistance of the thermochromic ink layer; The first plastic block is disposed at one end of the second coating layer; The second plastic block is disposed at the other end of the second coating layer. The second plastic block is provided with a plastic groove, which matches the size of the first plastic block and is used to place the first plastic block adjacent to the coating cover plate.

2. The coated cover panel according to claim 1, characterized in that The first coating layer includes a vanadium nitride layer, a niobium carbide layer, and a copper-chromium-zirconium alloy layer disposed sequentially. The vanadium nitride layer is disposed on the surface of the glass cover plate to enhance the wear resistance and anti-reflection properties of the glass cover plate surface; The niobium carbide layer is disposed on the surface of the vanadium nitride layer to enhance the wear resistance of the glass cover. The copper-chromium-zirconium alloy layer is disposed on the surface of the niobium carbide layer to enhance the heat dissipation capacity and electromagnetic shielding performance of the glass cover.

3. The coated cover plate according to claim 2, characterized in that, The thickness of the vanadium nitride layer is 50-70 nm.

4. The coated cover panel of claim 2, wherein, The thickness of the niobium carbide layer is 30-50 nm.

5. The coated cover panel of claim 2, wherein, The thickness of the copper-chromium-zirconium alloy layer is 100-150 nm.

6. The coated cover panel of claim 1, wherein, The thickness of the thermochromic ink layer is 8-12 μm.

7. The coated cover panel of claim 1, wherein, The second coating layer includes a niobium nitride layer and a tantalum carbide layer disposed sequentially. The niobium nitride layer is disposed on the surface of the thermochromic ink layer, and the tantalum carbide layer is disposed on the surface of the niobium nitride layer. The niobium nitride layer and the tantalum carbide layer are used to enhance the wear resistance of the thermochromic ink layer.

8. The coated cover panel according to claim 7, characterized in that The thickness of the niobium nitride layer is 10-20 nm.

9. The coated cover panel of claim 7, wherein, The thickness of the tantalum carbide layer is 5-10 nm.

10. A display module, characterized by The display module includes the coated cover plate as described in any one of claims 1-9.

Images