Composite coated cover plate structure

Abstract

The utility model relates to a composite coating cover plate structure which comprises a transparent substrate, an ink layer and a composite coating layer, the transparent substrate is provided with a first surface and a second surface which are oppositely arranged, and is provided with a non-display area and a display area; the ink layer is arranged on the second surface and used for covering the non-display area and exposing the display area; the composite coating layer is arranged on the first surface and covers the non-display area and the display area at the same time; the composite coating layer comprises an isolating layer, a waterproof layer, a wear-resistant layer, a flame-retardant layer and an anti-reflection layer which are sequentially stacked, and the isolating layer is arranged on the first surface. According to the utility model, through the combination of multiple film layers, the comprehensive performance of the cover plate is improved, and the use requirements of the cover plate in novel and special scenes are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to display technical field especially a kind of composite plating cover plate structure. BACKGROUND

[0002] With the continuous improvement of the appearance and performance requirements of display screen products, as the important protective components of various display screens, the performance and appearance of cover plate become the key factors of product competitiveness. Although traditional cover plate material has basic optical transparency and protection performance, it has certain limitations in some new and complex use environments. For example, in smart watches, smart bracelets and other wearable devices, the cover plate is required to have lightness, wear resistance, scratch resistance and other characteristics. Vehicle-mounted display screen cover plate needs to have good high-temperature resistance, vibration resistance and scratch resistance to adapt to the complex environment during vehicle driving. The display screen cover plate applied to smart televisions, smart refrigerators and other home appliances is required to have high transparency, good wear resistance and corrosion resistance. In cold and humid or hot environments, the adaptability of cover plate is insufficient.

[0003] In summary, traditional display screen cover plate has deficiencies in wear resistance, corrosion resistance, heat management and aesthetics. How to improve the comprehensive performance of cover plate has become a problem to be solved. INVENTION CONTENTS

[0004] In view of the deficiencies of the prior art, the utility model provides a kind of composite plating cover plate structure, and the purpose is to improve the comprehensive performance of cover plate, meet the use demand in different application scenarios.

[0005] The technical scheme adopted by the utility model is as follows:

[0006] A kind of composite plating cover plate structure, it includes transparent substrate, ink layer and composite plating film layer;

[0007] The transparent substrate has oppositely arranged first surface and second surface, and has non-display area and display area;

[0008] The ink layer is arranged on the second surface, for covering non-display area, and leaking display area;

[0009] The composite plating film layer is arranged on the first surface, covering non-display area and display area simultaneously;

[0010] The composite plating film layer includes isolation layer, waterproof layer, wear-resistant layer, flame-retardant layer and anti-reflection layer in turn, and the isolation layer is arranged on the first surface.

[0011] Further technical scheme is:

[0012] The ink layer is photosensitive color-changing ink, and the side of the ink layer away from the second surface is provided with a protective layer.

[0013] The thickness of the ink layer is 10-12 microns; the protective layer comprises an aluminum nitride layer with a thickness of 20-30 nm.

[0014] The isolation layer comprises a magnesium oxide layer.

[0015] The thickness of the isolation layer is 30-50 nm.

[0016] The waterproof layer comprises a polysulfonated fluorinated ethylene layer.

[0017] The thickness of the waterproof layer is 50-100 nm.

[0018] The wear-resistant layer comprises a boron nitride layer, and the flame-retardant layer comprises an aluminum hydroxide layer.

[0019] The thickness of the wear-resistant layer is 20-30 nm; the thickness of the flame-retardant layer is 20-30 nm.

[0020] The antireflection layer is an aluminum nitride layer; the thickness of the antireflection layer is 30-50 nm.

[0021] The utility model discloses the beneficial effect is as follows:

[0022] The utility model discloses the synergies of multilayer high performance material has realized the remarkable promotion of cover plate in visual effect, scratchproof, heat management and flame -retardant etc. multiple aspects performance, has prevented scratch and abrasion effectively, has prolonged the service life of cover plate, has improved the adaptability in a variety of new and special application scene, has satisfied the diversified market demand. The utility model discloses the specific has following points:

[0023] The utility model discloses the high light transmittance and low refractive index characteristics of aluminum nitride and boron nitride layer, combine the good optical performance of polysulfonated fluorinated ethylene and magnesium oxide layer, make the cover plate reduce light reflection and scattering while maintaining high transparency, improve visual effect.

[0024] The utility model discloses the high thermal conductivity of aluminum nitride and boron nitride layer helps the heat on the cover plate disperses rapidly, improves the heat management efficiency of equipment, reduces the performance decline or damage risk due to overheating.

[0025] The utility model discloses the flame -retardant performance of aluminum hydroxide layer is strengthened, improves the safety of equipment under extreme conditions such as fire.

[0026] The ink layer of the utility model adopts the photosensitive color-changing ink, which has the characteristics of dynamic color change, so that the cover plate exhibits different visual effects under different viewing angles and environmental conditions, improving the visual experience.

[0027] The utility model discloses utilize the dynamic color change of photosensitive color-changing ink and the metal luster of aluminum nitride protective layer to combine, further add the visual effect of the dynamic change of cover plate, increase the attraction and interesting of product.

[0028] Other features and advantages of the utility model will be described in the subsequent specification, or be understood through the implementation of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is the stacking schematic diagram of composite plating film cover plate structure of the utility model embodiment 1.

[0030] Figure 2 It is the front view of the utility model embodiment 1.

[0031] Figure 3 It is the stacking schematic diagram of composite plating film cover plate structure of the utility model embodiment 1.

[0032] In the drawing: 1, antireflection layer; 2, flame retardant layer; 3, wear-resistant layer; 4, waterproof layer; 5, isolation layer; 6, transparent base plate; 7, ink layer; 8, protective layer; 9, display area; 10, non-display area. DETAILED DESCRIPTION

[0033] The specific implementation of the utility model will be described below in conjunction with the drawings.

[0034] Embodiment 1

[0035] Referring to Figure 1 And Figure 2 , the composite plating film cover plate structure of the embodiment includes transparent base plate 6, ink layer 7 and composite plating film layer;

[0036] Transparent base plate 6 has oppositely arranged first surface and second surface, and has non-display area 10 and display area 9;

[0037] Ink layer 7 is arranged on the second surface, for covering non-display area 10, and leaking display area 9; Figure 2 Non-display area 10 is the coverage area of ink, and its size and shape are set according to actual demand;

[0038] The composite plating film layer is arranged on the first surface, covering non-display area 10 and display area 9 simultaneously;

[0039] The composite plating film layer includes isolation layer 5, waterproof layer 4, wear-resistant layer 3, flame retardant layer 2 and antireflection layer 1 in turn, and isolation layer 5 is arranged on the first surface.

[0040] The isolation layer 5 is preferably a magnesium oxide layer. As a bottom layer, it has good chemical stability and hardness, effectively preventing chemical reactions between the subsequent coating layers and the transparent substrate 6, while providing some wear resistance.

[0041] The thickness of the isolation layer 5 is preferably 30-50 nm.

[0042] The waterproof layer 4 is preferably a polysulfonated polyvinyl fluoride layer. It has excellent chemical corrosion resistance, low friction coefficient and waterproof performance, providing a good substrate for subsequent coating layers and enhancing the durability of the overall coating layer.

[0043] The thickness of the waterproof layer 4 is preferably 50-100 nm.

[0044] The wear-resistant layer 3 is preferably a boron nitride layer, and the flame-retardant layer 2 is preferably an aluminum hydroxide layer.

[0045] Boron nitride has high hardness, high thermal conductivity and good chemical stability, further improving the wear resistance and thermal management capability of the cover plate. Aluminum hydroxide not only has good flame retardancy, but also can improve the hardness and wear resistance of the cover plate to some extent, and its chemical stability also helps to protect the inner coating.

[0046] The above combination of boron nitride layer + aluminum hydroxide layer has the following synergistic effects:

[0047] (1) Boron nitride has high hardness and wear resistance, while the aluminum hydroxide layer provides some flexibility and impact resistance. After superimposing the two, a composite material is formed that is both hard and has some flexibility. When subjected to mechanical stress, it can not only resist surface wear, but also absorb impact energy and reduce the risk of brittle fracture.

[0048] (2) Boron nitride has excellent thermal conductivity, while aluminum hydroxide will decompose and absorb heat at high temperatures. After combining the two, boron nitride can quickly conduct heat, while aluminum hydroxide can absorb excess heat when it is locally overheated, effectively managing heat distribution and dissipation, preventing local overheating and improving the thermal stability of the material.

[0049] (3) Aluminum hydroxide will decompose and release water vapor at high temperatures, acting as a flame retardant. The chemical stability of boron nitride can prevent the spread of flames. After superimposing the two, the flame-retardant effect of aluminum hydroxide combined with the fire barrier effect of boron nitride can more effectively suppress the spread of flames and provide stronger fire protection when exposed to high temperatures or flames, thereby enhancing the flame-retardant performance and improving the adaptability of the cover plate in extreme environments.

[0050] (4) Boron nitride and aluminum hydroxide are both excellent electrical insulators. After superimposing the two, a multi-layer insulation barrier is formed, which can provide more reliable insulation protection in high-voltage environments and reduce the risk of electrical breakdown.

[0051] (5) Boron nitride is inert to most chemicals, while aluminum hydroxide can also resist chemical corrosion to some extent. After superimposition, a stronger chemical protection layer is formed. It has a longer service life in corrosive environments and can better protect the underlying material.

[0052] (6) The interface between boron nitride and aluminum hydroxide produces unique physical or chemical interactions, such as forming new chemical bonds or interface states. Thus, enhanced interface strength and improved thermal conduction path are obtained.

[0053] In summary, the combination of boron nitride and aluminum hydroxide has multiple properties such as mechanical strength, thermal management, flame retardation, and electrical insulation. This makes the material more competitive in complex application scenarios.

[0054] Preferably, the thickness of the wear-resistant layer 3 is 20-30 nm.

[0055] Preferably, the thickness of the flame-retardant layer 2 is 20-30 nm.

[0056] Preferably, the anti-reflective layer 1 is an aluminum nitride layer. Its high thermal conductivity, high hardness, and good chemical stability make it the outermost layer of the composite coating layer, ensuring high light transmittance of the cover plate and enhancing wear resistance and corrosion resistance.

[0057] Preferably, the thickness of the anti-reflective layer 1 is 30-50 nm.

[0058] Preferably, the ink layer 7 is a photochromic ink. It can change color according to changes in light or temperature, achieving a dynamic visual effect, enhancing the interestingness and aesthetics of the product, and improving the user's visual experience.

[0059] The color-changing principle of photochromic ink is mainly based on photochromic materials. These materials change their molecular structure after absorbing specific wavelengths of light (such as ultraviolet light), causing a color change. When the light disappears, the molecular structure returns to its original state, and the color also returns. Photochromic ink usually has four basic colors: purple, red, blue, and yellow. These colors can be combined with each other, and through different combinations and ratios, more diverse color-changing effects can be created.

[0060] Preferably, the thickness of the ink layer 7 is 10-12 μm.

[0061] Preferably, the transparent substrate 6 provides structural support and excellent optical transparency as the basis of the entire cover plate. It can be glass or other materials. It can be rigid or flexible. The thickness of the transparent substrate 6 is set according to actual needs.

[0062] The setting of each layer of film can be completed by using common evaporation film plating, sputtering film plating and the like. The photosensitive color-changing ink can be dried by using self-drying, baking or UV curing.

[0063] In summary, the cover plate film plating layer of the embodiment adopts a multi-layer structure design, and each layer of material is optimized and combined to act on the transparent substrate to form a solid and multifunctional protective layer. Specifically, the magnesium oxide layer as the bottom layer uses its excellent chemical stability and hardness to effectively isolate the direct contact between the subsequent film plating layer and the glass substrate, prevent the occurrence of chemical reaction, and provide preliminary wear-resistant protection. The polysulfonated polyvinyl fluoride layer provides a stable and smooth substrate for the subsequent film plating layer with its chemical corrosion resistance, low friction coefficient and waterproof performance, thereby enhancing the durability of the overall film plating layer. The addition of the boron nitride layer and the aluminum hydroxide layer further improves the hardness and wear resistance of the cover plate, while imparting high thermal conductivity and flame retardant properties. The outermost aluminum nitride layer ensures the high light transmittance and wear-resistant corrosion resistance of the cover plate with its high light transmittance, high hardness and good chemical stability.

[0064] Embodiment 2

[0065] Referring to Figure 3 The composite film plating cover plate structure of the embodiment is different from that of Embodiment 1 in that a protective layer 8 is arranged on the side of the ink layer 7 away from the second surface.

[0066] Preferably, the ink layer 7 is photosensitive color-changing ink.

[0067] Preferably, the protective layer 8 comprises an aluminum nitride layer. The main function of the aluminum nitride layer is to prevent the ink layer from being scratched, and at the same time, the aluminum nitride layer provides additional protection for the ink layer with its high hardness and corrosion resistance.

[0068] The dynamic color change of the photosensitive color-changing ink combined with the metallic luster of the aluminum nitride layer makes the cover plate exhibit different visual effects under different viewing angles and environmental conditions, thereby adding dynamic visual effects to the cover plate and increasing the attractiveness and interest of the product. Moreover, the aluminum nitride layer effectively prevents the ink layer from being scratched, thereby achieving double improvement of visual aesthetics and protection.

[0069] Preferably, the thickness of the protective layer 8 is 20-30 nm.

[0070] It can be understood by those skilled in the art that the above description is only a preferred embodiment of the present application and is not used to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacements to some technical features. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A composite coated cover plate structure, characterized in that, It includes a transparent substrate (6), an ink layer (7), and a composite coating layer; The transparent substrate (6) has a first surface and a second surface disposed opposite to each other, and has a non-display area and a display area; The ink layer (7) is disposed on the second surface to cover the non-display area and expose the display area; The composite coating layer is disposed on the first surface, simultaneously covering the non-display area and the display area; The composite coating layer includes an isolation layer (5), a waterproof layer (4), a wear-resistant layer (3), a flame-retardant layer (2), and an anti-reflective layer (1) stacked in sequence, with the isolation layer (5) disposed on the first surface.

2. The composite coated cover plate structure according to claim 1, characterized in that, The ink layer (7) is a photosensitive color-changing ink, and a protective layer (8) is provided on the side of the ink layer (7) away from the second surface.

3. The composite coated cover plate structure according to claim 2, characterized in that, The ink layer (7) has a thickness of 10-12 μm; the protective layer (8) includes an aluminum nitride layer with a thickness of 20-30 nm.

4. The composite coated cover plate structure according to claim 1, characterized in that, The isolation layer (5) includes a magnesium oxide layer.

5. The composite coated cover plate structure according to claim 1 or 4, characterized in that, The thickness of the isolation layer (5) is 30-50 nm.

6. The composite coated cover plate structure according to claim 1, characterized in that, The waterproof layer (4) includes a polysulfonated fluorinated ethylene layer.

7. The composite coated cover plate structure according to claim 1 or 6, characterized in that, The thickness of the waterproof layer (4) is 50-100 nm.

8. The composite coated cover plate structure according to claim 1, characterized in that, The wear-resistant layer (3) includes a boron nitride layer, and the flame-retardant layer (2) includes an aluminum hydroxide layer.

9. The composite coated cover plate structure according to claim 1 or 8, characterized in that, The wear-resistant layer (3) has a thickness of 20-30 nm; the flame-retardant layer (2) has a thickness of 20-30 nm.

10. The composite coated cover plate structure according to claim 1, characterized in that, The antireflection layer (1) is an aluminum nitride layer; the thickness of the antireflection layer (1) is 30-50 nm.

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