High-hardness and high-wear-resistance coated cover plate and display device
By adjusting the high light transmittance and optical performance of the glass cover, the problem of insufficient wear resistance in the existing technology has been solved, and a coated cover with high hardness and wear resistance has been achieved, which enhances the protective performance and aesthetics.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-26
- Publication Date
- 2026-03-24
AI Technical Summary
Traditional glass covers are prone to scratches during use, and their wear resistance and protective performance are insufficient, making it difficult to meet the stringent requirements of high-end applications.
A high-transparency layer and an alumina layer are set on the glass cover plate. The high-transparency layer is covered by alternating layers of silica and ytterbium oxide, and the alumina layer covers the high-transparency layer. It has high hardness, wear resistance and corrosion resistance. The optical performance can be regulated by precisely controlling the thickness and refractive index of each layer.
The coating improves the hardness and wear resistance of the cover plate, enhances its protection against the external environment, extends its service life, and achieves a more aesthetically pleasing visual effect through optical performance control.
Smart Images
Figure CN224030894U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of plated cover plate, especially to a kind of high hardness and high wear-resistant plated cover plate and display device. BACKGROUND
[0002] With the continuous progress of science and technology, glass cover plate is increasingly widely used in electronic display, industrial or medical instruments, automotive display and other fields, wherein, glass cover plate covers the surface of display device, and plays a protective role for display device.
[0003] In the related art, the uppermost surface of the traditional glass cover plate is not protected, which leads to scratches on the glass cover plate during use, and has limitations in wear resistance and other aspects, which is difficult to meet the strict requirements of high-end applications on performance. SUMMARY
[0004] To solve the problems in the prior art, the utility model provides a kind of high hardness and high wear-resistant plated cover plate and display device.
[0005] On the one hand, the utility model provides a kind of high hardness and high wear-resistant plated cover plate using the following technical scheme, comprising: glass cover plate, high-transparency layer and aluminum oxide layer;The high-transparency layer is covered on the glass cover plate, and the high-transparency layer has high light transmittance and optical refraction;The aluminum oxide layer is covered on the high-transparency layer, and the aluminum oxide layer has high hardness, wear resistance and corrosion resistance.
[0006] Optionally, the thickness of the aluminum oxide layer is between 70 nanometers and 80 nanometers.
[0007] Optionally, the high-transparency layer comprises: a silicon dioxide layer, covered on the glass cover plate, the silicon dioxide layer has high light transmittance;Ytterbium oxide layer, covered on the silicon dioxide layer, the ytterbium oxide layer has optical refraction.
[0008] Optionally, the silicon dioxide layer has multiple layers, and the ytterbium oxide layer has multiple layers, and the multiple layers of the silicon dioxide layer and the multiple layers of the ytterbium oxide layer are alternately covered on the glass cover plate.
[0009] Optionally, the number of layers of the silicon dioxide layer is the same as the number of layers of the ytterbium oxide layer.
[0010] Optionally, the number of layers of the silicon dioxide layer is two, and the number of layers of the ytterbium oxide layer is two.
[0011] Optionally, the thickness of the multiple layers of the silicon dioxide layer is between 50 nanometers and 60 nanometers.
[0012] Optionally, the thickness of the multiple layers of the ytterbium oxide layer is between 50 nanometers and 60 nanometers.
[0013] Optionally, along the covering direction of the glass cover plate, the high-transmittance layer and the aluminum oxide layer, the surface area of the glass cover plate, the high-transmittance layer and the aluminum oxide layer gradually decreases.
[0014] In another aspect, the utility model provides a kind of display device, including the high hardness and high wear-resistant film-coated cover plate of the kind.
[0015] Any one of the above technical solutions of the utility model has at least one of the following beneficial effects:
[0016] 1. By the cross stacking of the silicon dioxide layer and the ytterbium oxide layer, the film-coated cover plate with high optical performance can be formed, and the anti-reflection and the transmittance performance can meet the needs of different application scenarios;
[0017] 2. The aluminum oxide layer has high hardness, high wear resistance and high corrosion resistance, which can effectively protect the film-coated cover plate from damage by external environment and prolong its service life;
[0018] 3. By fine control of the thickness and refractive index of each layer, the film-coated cover plate can accurately regulate light, so that the film-coated cover plate presents more beautiful and unique visual effect. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 is the cross-sectional anatomical diagram of the high hardness and high wear-resistant film-coated cover plate of the utility model;
[0020] Figure 2 is the external contour front view of the high hardness and high wear-resistant film-coated cover plate of the utility model.
[0021] Reference signs: 1, glass cover plate;
[0022] 2, high-transmittance layer; 21, silicon dioxide layer; 22, ytterbium oxide layer;
[0023] 3, aluminum oxide layer. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.
[0025] In the description of the utility model, it is understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.
[0026] Embodiment 1
[0027] The utility model discloses an embodiment of a kind of high hardness and high wear-resistant coated cover plate. Figure 1 Including: glass cover plate 1, high permeation layer 2 and alumina layer 3;The high permeation layer 2 is covered on the glass cover plate 1, the high permeation layer 2 has high light transmittance and optical refraction;The alumina layer 3 is covered on the high permeation layer 2, the alumina layer 3 has high hardness, wear resistance and corrosion resistance.
[0028] By adopting the above technical scheme, the high permeation layer 2 is arranged on the glass cover plate 1, which can increase the optical performance of the glass cover plate 1, enhance the viewing experience of the glass cover plate 1 when watching display content, improve the light transmittance of the glass cover plate 1, and ensure that the content is clear and bright, without affecting the presentation of color and brightness.
[0029] The glass cover plate 1 is coated, the high permeation layer 2 is arranged, the influence of reflectivity needs to be considered when improving the light transmittance, too low reflectivity may cause glare problem, and too high reflectivity will affect the light transmittance effect. The alumina layer 3 needs to have good durability and stability, can keep its light transmittance performance unaffected for a long time, and also needs to be able to protect the internal glass cover plate 1 from damage. In addition, when the high permeation layer 2 and the alumina layer 3 are arranged, the cost benefit problem also needs to be considered, the cost difference of different materials and process treatment is large, needs to be selected according to actual application scene and demand.
[0030] Specifically, in the application scene of vehicle-mounted display screen and the like, the stability and durability of the glass cover plate 1 are required to be high due to various vibrations and environmental influences. In addition, in electronic products such as smart phones and tablet computers, the viewing experience requirement of content display is high. By arranging the high permeation layer 2 and the alumina layer 3, the protection performance and high permeability are effectively balanced, which meets the strict requirements of high-end applications on performance.
[0031] Preferably, the thickness of the alumina layer 3 is between 70 nanometers and 80 nanometers.
[0032] By adopting the above technical solution, the aluminum oxide layer 3 covers the surface of the high-transparency layer 2, which can protect the internal high-transparency layer 2 and the glass cover plate 1 from being scratched. The aluminum oxide layer 3 has good protection effect. If the thickness of the aluminum oxide layer 3 is low, the protection effect is poor, that is, the internal high-transparency layer 2 and the glass cover plate 1 cannot be completely protected. If the thickness of the aluminum oxide layer 3 is high, the material consumption is large, the cost is increased, and the plated film cover plate is thick, which reduces the user experience. Therefore, the thickness of the aluminum oxide layer 3 is set to 70-80 nanometers, which effectively balances the protection effect and the material cost, and improves the user experience.
[0033] Preferably, the high-transparency layer 2 includes: a silicon dioxide layer 21 covering the glass cover plate 1, the silicon dioxide layer 21 having high light transmittance; and a ytterbium oxide layer 22 covering the silicon dioxide layer 21, the ytterbium oxide layer 22 having optical refraction.
[0034] By adopting the above technical solution, the silicon dioxide layer 21 is an excellent insulating material layer with high light transmittance and chemical stability. The silicon dioxide layer 21 can be used as the bottom layer of the plated film cover plate, that is, the first layer covering the glass cover plate 1. It can effectively isolate the glass cover plate 1 from direct contact with the external environment, protect the glass cover plate 1 from corrosion and pollution, and enhance the optical performance of the glass cover plate 1.
[0035] The ytterbium oxide layer 22 is a rare earth oxide layer with specific optical properties, including but not limited to high refractive index and low dispersion. In the plated film cover plate, the ytterbium oxide layer 22 can enhance the reflection and refraction of light, further enhancing the optical performance of the glass cover plate 1 and improving the visual experience of users watching the display device.
[0036] Preferably, the silicon dioxide layer 21 has multiple layers, and the ytterbium oxide layer 22 has multiple layers. The multiple layers of the silicon dioxide layer 21 and the multiple layers of the ytterbium oxide layer 22 are alternately covered on the glass cover plate 1.
[0037] By adopting the above technical solution, the multiple layers of the silicon dioxide layer 21 and the multiple layers of the ytterbium oxide layer 22 are alternately covered on the glass cover plate 1, which can effectively enhance the anti-reflection performance, that is, enhance the optical performance. The multiple layers of the silicon dioxide layer 21 and the ytterbium oxide layer 22 are overlapped, so that the functions of the multiple layers are superimposed. The refraction of the silicon dioxide layer 21 is used, and then the refraction of the ytterbium oxide layer 22 is used, which enhances the optical performance of a single material.
[0038] Meanwhile, after the multi-layer superposition, the optical performance is improved through multiple refractions, and the optical performance is significantly improved compared to the single material thickening. The cross-stacked structure can form an interference effect similar to an optical film. By adjusting the thickness and refractive index of each layer, the enhancement or suppression of specific wavelength light can be realized, thereby meeting different optical requirements. Each layer of ytterbium oxide layer 22 further enhances the optical performance of the coated cover plate, and can introduce more functional characteristics, such as anti-reflection and anti-reflection.
[0039] Preferably, in the embodiment, the number of layers of the silicon dioxide layer 21 is the same as the number of layers of the ytterbium oxide layer 22.
[0040] By adopting the above technical solution, the number of layers of the ytterbium oxide layer 22 and the silicon dioxide layer 21 alternately covered on the glass cover plate 1 is the same, that is, a layer of silicon dioxide layer 21 is covered on the glass cover plate 1, and then a layer of ytterbium oxide layer 22 is covered. If it is necessary to cover another layer of silicon dioxide layer 21, a corresponding layer of ytterbium oxide layer 22 must be covered above. This mode ensures that the ytterbium oxide layer 22 is always above the silicon dioxide layer 21, so that the optical performance of the ytterbium oxide layer 22 is maximized, and the effect of the ytterbium oxide layer 22 on enhancing the reflection and refraction of light is effectively utilized, thereby improving the user's perception of the display device.
[0041] Alternatively, the multi-layer silicon dioxide layer 21 and the multi-layer ytterbium oxide layer 22 alternately cover the glass cover plate 1. The silicon dioxide layer 21 and the ytterbium oxide layer 22 can be stacked in a one-to-one manner, or the silicon dioxide layer 21 can be stacked with multiple layers of ytterbium oxide layer 22, and then the silicon dioxide layer 21 can be stacked with multiple layers of ytterbium oxide layer 22, that is, the thickness of the multi-layer silicon dioxide layer 21 is reduced, thereby stacking the multi-layer silicon dioxide layer 21. In this embodiment, the silicon dioxide layer 21 and the ytterbium oxide layer 22 are stacked in a one-to-one manner.
[0042] Preferably, in the embodiment, the number of layers of the silicon dioxide layer 21 is two, and the number of layers of the ytterbium oxide layer 22 is two.
[0043] By adopting the above technical solution, the silicon dioxide layer 21 has high light transmission performance, and the multi-layer silicon dioxide layer 21 can increase the light transmission effect. However, the more layers are stacked, the more material and cost will be increased. However, if the number of stacked silicon dioxide layers 21 is small, the high-quality light transmission effect cannot be achieved. Therefore, the silicon dioxide layer 21 is set to two layers, thereby effectively balancing the relationship between high light transmission effect and material cost.
[0044] Meanwhile, the number of layers of the ytterbium oxide layer 22 needs to be the same as that of the silicon dioxide layer 21, so the ytterbium oxide layer 22 is also set to three layers, thereby effectively enhancing the anti-reflection effect and high light transmission.
[0045] Preferably, the thickness of the plurality of layers of the silicon dioxide layer 21 is between 50nm and 60nm.
[0046] By using the above technical solution, the silicon dioxide layer 21 has high permeability, and the ytterbium oxide layer 22 assists the silicon dioxide layer 21 to increase the reflection effect after high permeability, thereby improving the optical performance of the coated cover plate. If the thickness of the silicon dioxide layer 21 and the ytterbium oxide layer 22 is too thick, the material and cost will increase. However, if the thickness of the silicon dioxide layer 21 and the ytterbium oxide layer 22 is too thin, it cannot achieve good anti-reflection effect, and it also requires more delicate technology to manufacture the thin silicon dioxide layer 21 and the ytterbium oxide layer 22, thereby increasing the technical cost. Therefore, the thickness of the ytterbium oxide layer 22 is set to 50nm to 60nm, and the thickness of the silicon dioxide layer 21 is set to 50nm to 60nm, thereby effectively balancing the relationship between the anti-reflection effect and the material cost.
[0047] Preferably, along the covering direction of the glass cover plate 1, the high permeability layer 2 and the aluminum oxide layer 3, the surface area of the glass cover plate 1, the high permeability layer 2 and the aluminum oxide layer 3 gradually decreases.
[0048] By using the above technical solution, the glass cover plate 1, the silicon dioxide layer 21, the ytterbium oxide layer 22 and the aluminum oxide layer 3 are bonded together by the adhesive to form a coated cover plate thicker than any single layer, thereby increasing the risk of explosion at the corners of the glass cover plate 1. In order to reduce the risk of explosion at the corners of the glass cover plate 1, the corners of the side away from the display device of the glass cover plate 1 are set to be arc-shaped, that is, the surface area of the alternatingly covered plurality of layers of ytterbium oxide layer 22, the plurality of layers of silicon dioxide layer 21 and the aluminum oxide layer 3 gradually decreases. In order to make the arc at the corners of the coated cover plate not affect the visual effect of watching the screen, the diameter of the arc is less than 1mm. In addition, in order to adapt to the arc at the corners of the glass cover plate 1, the surface area of the alternatingly covered plurality of layers of ytterbium oxide layer 22 and the plurality of layers of silicon dioxide layer 21 decreases in turn, so that the maximum surface area of the layer close to the glass cover plate 1 between the two adjacent layers is greater than the maximum surface area of the layer away from the glass cover plate 1, thereby reducing the risk of explosion of the coated cover plate.
[0049] In addition, in order to reduce the risk of explosion of the glass cover plate 1 while ensuring the aesthetics of the coated cover plate, the maximum surface area of the two adjacent layers is not more than 1 square millimeter, so that the edge of the coated cover plate presents an arc shape, which is more beautiful.
[0050] Embodiment 2
[0051] The display device provided by the utility model has high hardness and high wear resistance.
[0052] The embodiment of the high-hardness and high-wear-resistance coated cover plate and display device is provided with a high-transparency and chemical stability silica layer 21 as a bottom layer, which effectively prevents the glass cover plate 1 from being eroded by the external environment.
[0053] The silica layer 21 is arranged on the glass cover plate 1 as a bottom layer, wherein the silica layer 21 has high light transmittance and chemical stability, and effectively prevents the glass cover plate 1 from being eroded by the external environment.
[0054] The ytterbium oxide layer 22 with optical properties is arranged, and the high refractive index and low dispersion characteristics of the ytterbium oxide layer 22 form an interference effect with the silica layer 21 to realize the regulation of light. Specifically, the silica layer 21 and the ytterbium oxide layer 22 are alternately arranged on the glass cover plate 1, and the cross-stacking manner not only enhances the optical properties of the high-transparency layer 2, such as anti-reflection, anti-reflection, light filtering and the like, but also improves the complexity and functionality of the high-transparency layer 2.
[0055] The aluminum oxide layer 3 is arranged on the high-transparency layer 2, that is, the outermost layer, wherein the aluminum oxide layer 3 has high hardness, high wear resistance and high corrosion resistance, and provides a firm protective barrier for the entire coated cover plate, effectively prolonging the service life of the coated cover plate.
[0056] By adjusting the thickness and refractive index of each layer, the coated cover plate effectively realizes the optimal regulation of light, while having excellent durability and aesthetic appearance, and reduces the possibility of scratches of the coated cover plate during use.
[0057] The above are preferred embodiments of the utility model, and do not limit the protection scope of the utility model, so that: equivalent changes made according to the structure, shape and principle of the utility model should be covered in the protection scope of the utility model.
Claims
1. A coated cover plate with high hardness and high wear resistance, characterized in that, include: Glass cover (1), high transparency layer (2), and alumina layer (3); The high-transparency layer (2) covers the glass cover plate (1), and the high-transparency layer (2) has high light transmittance and optical refractive properties; The alumina layer (3) covers the high-transparency layer (2), and the alumina layer (3) has high hardness, wear resistance and corrosion resistance.
2. The high-hardness and high-wear-resistance coated cover plate according to claim 1, characterized in that, The thickness of the alumina layer (3) is between 70 nanometers and 80 nanometers.
3. The high-hardness and high-wear-resistance coated cover plate according to claim 1, characterized in that, The high-transparency layer (2) includes: A silicon dioxide layer (21) is applied to the glass cover plate (1), and the silicon dioxide layer (21) has high light transmittance. A ytterbium oxide layer (22) is applied over the silicon dioxide layer (21), and the ytterbium oxide layer (22) has optical refractive properties.
4. The high-hardness and high-wear-resistance coated cover plate according to claim 3, characterized in that, The silicon dioxide layer (21) has multiple layers, and the ytterbium oxide layer (22) has multiple layers. The multiple silicon dioxide layers (21) and the multiple ytterbium oxide layers (22) alternately cover the glass cover plate (1).
5. A high-hardness and high-wear-resistant coated cover plate according to claim 4, characterized in that, The number of layers of the silicon dioxide layer (21) is the same as the number of layers of the ytterbium oxide layer (22).
6. A high-hardness and high-wear-resistant coated cover plate according to claim 4, characterized in that, The silicon dioxide layer (21) has two layers, and the ytterbium oxide layer (22) has two layers.
7. A high-hardness and high-wear-resistant coated cover plate according to claim 3, characterized in that, The thickness of the multilayer silicon dioxide layer (21) is between 50 nanometers and 60 nanometers.
8. A high-hardness and high-wear-resistant coated cover plate according to claim 3, characterized in that, The thickness of the multilayer ytterbium oxide layer (22) is between 50 nanometers and 60 nanometers.
9. A high-hardness and high-wear-resistant coated cover plate according to claim 1, characterized in that, Along the covering direction of the glass cover (1), the high-transparency layer (2) and the alumina layer (3), the surface area of the glass cover (1), the high-transparency layer (2) and the alumina layer (3) gradually decreases.
10. A display device, characterized in that, Including the high-hardness and high-wear-resistant coated cover plate as described in any one of claims 1-9.