Coated cover plate

Abstract

The utility model discloses a film-coated cover plate, which comprises a substrate layer, a hafnium silicate layer, a titanium dioxide layer and a tantalum oxide layer, the hafnium silicate layer, the titanium dioxide layer and the tantalum oxide layer are sequentially arranged on the surface of the substrate layer from bottom to top in the height direction of the substrate layer; wherein the hafnium silicate layer, the titanium dioxide layer and the tantalum oxide layer are combined to form a coating layer, and the tantalum oxide layer is used for improving the wear resistance, corrosion resistance and scratch resistance of the titanium dioxide layer. The hafnium silicate layer, the titanium dioxide layer and the tantalum oxide layer are sequentially arranged on the surface of the substrate layer, so that the transmission path of light on the surface of the glass is optimized, the optical performance is improved, the weather resistance of the glass cover plate is remarkably enhanced, the service life of the glass cover plate is remarkably prolonged, and meanwhile, the glass cover plate is endowed with a customizable attractive effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to display field especially involves a kind of plated cover plate. BACKGROUND

[0002] With the continuous progress of science and technology, glass cover plate is increasingly widely used in electronic display, solar cell, optical instrument and other fields. For example, mobile phone, in order to protect the screen, prevent the screen from being scratched and affect the display effect, the current touch screen mobile phone generally has a glass cover plate attached to the screen of the mobile phone.

[0003] For example, the patent document with the application number CN201810147381.4 discloses a glass cover plate processing method, glass cover plate and mobile terminal. When polishing the 2.5D curved surface of the glass cover plate, the upper surface and the lower surface of the glass cover plate are in contact with each other due to the mutual stacking of multiple glass cover plates, which protects the upper surface and the lower surface from contact with the bristles and prevents the flatness near the camera hole on the upper surface of the glass cover plate from deteriorating. Moreover, the diameter of the bristles is greater than or equal to the distance between the multiple glass cover plates after clamping, so the bristles cannot enter between the multiple stacked glass cover plates, further preventing the polishing of the 2.5D curved surface from affecting the camera hole on the upper surface of the glass cover plate.

[0004] The above patent document solves the technical problem of the existing technology that the polishing device easily causes the flatness near the camera hole on the upper surface of the glass cover plate to deteriorate when polishing the 2.5D curved surface, but there are still limitations for the glass cover plate body in actual use. For example, the current glass cover plate body is ordinary aluminosilicate glass, which has limitations in hardness, wear resistance, corrosion resistance, and anti-reflection performance during use. Therefore, in order to solve this problem in the prior art, sometimes a plating layer is selected, but this affects the transparency, for example,

[0005] 1. When there are many plating layers, the adhesion between the plating layers and the glass cover plate decreases, so there is a chance of a gap between the plating layers and the glass cover plate. When light shines, the number of refractions in the gap area is high, affecting the penetration of light.

[0006] 2. When there are many layers of plating, it is necessary to make the light pass through the outermost layer of the film more efficiently, but the outermost layer of the film in the prior art often ignores the penetration of light in order to ensure hardness.

[0007] Therefore, how to solve the above-mentioned problems in the prior art has become the subject to be studied and solved by the utility model. UTILITY MODEL CONTENTS

[0008] Based on this, it is necessary to aim at the 1, the adhesion between the coating layer and the glass cover plate is reduced when the coating layer is more, so that there is a gap between the coating layer and the glass cover plate, when the light is irradiated, the number of refraction in the gap area is more, which affects the penetration of light; 2, when the number of coating layers is more, the efficiency of light passing through the outermost layer of the film is higher, but the outermost layer of the film in the prior art often ignores the technical problem of light penetration in order to ensure the hardness, a coated cover plate is provided.

[0009] In order to solve the above technical problems, the utility model adopts the technical scheme as follows:

[0010] A coated cover plate, comprising a substrate layer, a hafnium silicate layer, a titanium dioxide layer and a tantalum oxide layer;

[0011] On the surface of the substrate layer, along the height direction of the substrate layer, the hafnium silicate layer, the titanium dioxide layer and the tantalum oxide layer are sequentially arranged from bottom to top;

[0012] Among them, the hafnium silicate layer, the titanium dioxide layer and the tantalum oxide layer combine to form a coating layer, and the tantalum oxide layer is used to improve the wear resistance, corrosion resistance and scratch resistance of the titanium dioxide layer.

[0013] Further, the thickness of the tantalum oxide layer is less than the thickness of the titanium dioxide layer.

[0014] Further, the edge of the coating layer is provided with a protection part for isolating the edge of the coating layer from external sundries.

[0015] Further, the protection part is a ring cover around the edge of the coating layer.

[0016] Further, the upper end of the ring cover is flush with the upper surface of the tantalum oxide layer, and the lower end is flush with the ground surface of the substrate layer.

[0017] Further, the protection part is a three-layer protection layer;

[0018] The first protection layer is arranged at the edge of the hafnium silicate layer and integrally arranged with the hafnium silicate layer;

[0019] The second protection layer is arranged at the edge of the titanium dioxide layer and integrally arranged with the titanium dioxide layer;

[0020] The third protection layer is arranged at the edge of the tantalum oxide layer and integrally arranged with the tantalum oxide layer.

[0021] Further, the first protection layer, the second protection layer and the third protection layer are sequentially stacked from inside to outside.

[0022] Further, the lower surface of the base layer is provided with a clamping block, and a surface of the clamping block is provided with an insulation block connected with the protection part.

[0023] Further, the protection part comprises a wrapping layer arranged around the outer side of the base layer, and the upper end of the wrapping layer is connected with the edge of the tantalum oxide layer and is integrally arranged with the tantalum oxide layer.

[0024] Further, the lower surface of the base layer is provided with an insulation layer, and the insulation layer is connected with the lower end of the wrapping layer and is integrally arranged with the wrapping layer.

[0025] Compared with the prior art, the utility model has the following beneficial effects:

[0026] The utility model discloses a glass cover plate with a tantalum oxide layer, which comprises a base layer, a hafnium silicate layer, a titanium dioxide layer and a tantalum oxide layer arranged on the surface of the base layer in sequence. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 The utility model provides a tantalum oxide layer overhead structure schematic diagram for the utility model provides the base layer cross section structure schematic diagram for the utility model provides the ring cover structure schematic diagram for the utility model provides the insulation block structure schematic diagram for the utility model provides the wrapping layer structure schematic diagram.

[0028] Figure 2 The utility model provides a tantalum oxide layer overhead structure schematic diagram for the utility model provides the base layer cross section structure schematic diagram for the utility model provides the ring cover structure schematic diagram for the utility model provides the insulation block structure schematic diagram for the utility model provides the wrapping layer structure schematic diagram.

[0029] Figure 3 The utility model provides a tantalum oxide layer overhead structure schematic diagram for the utility model provides the base layer cross section structure schematic diagram for the utility model provides the ring cover structure schematic diagram for the utility model provides the insulation block structure schematic diagram for the utility model provides the wrapping layer structure schematic diagram.

[0030] Figure 4 The utility model provides a tantalum oxide layer overhead structure schematic diagram for the utility model provides the base layer cross section structure schematic diagram for the utility model provides the ring cover structure schematic diagram for the utility model provides the insulation block structure schematic diagram for the utility model provides the wrapping layer structure schematic diagram.

[0031] Figure 5 The utility model provides a tantalum oxide layer overhead structure schematic diagram for the utility model provides the base layer cross section structure schematic diagram for the utility model provides the ring cover structure schematic diagram for the utility model provides the insulation block structure schematic diagram for the utility model provides the wrapping layer structure schematic diagram.

[0032] Marking in the drawing is as follows:

[0033] 1, base layer, 2, hafnium silicate layer, 3, titanium dioxide layer, 4, tantalum oxide layer, 5, ring cover, 6, first protection layer, 7, second protection layer, 8, third protection layer, 9, clamping block, 10, insulation block, 11, wrapping layer, 12, insulation layer. DETAILED DESCRIPTION

[0034] In order to enable personnel in the technical field to better understand the technical scheme of the present application, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application.

[0035] 1. When there are many coating layers, the adhesion between the coating layers and the glass cover plate is reduced, so that there is a probability of a gap between the coating layers and the glass cover plate, and when light is irradiated, the number of refractions in the gap area is large, affecting the penetration of light; 2. When the number of coating layers is large, the efficiency of light passing through the outermost layer of the film needs to be higher, but the outermost layer of the film in the prior art often ignores the technical problem of light penetration in order to ensure hardness.

[0036] In order to solve this technical problem, the present application provides a coated cover plate.

[0037] Specifically, please refer to Figures 1-5 , the coated cover plate comprises a substrate layer 1, a hafnium silicate layer 2, a titanium dioxide layer 3 and a tantalum oxide layer 4;

[0038] On the surface of the substrate layer 1, along the height direction of the substrate layer 1, the hafnium silicate layer 2, the titanium dioxide layer 3 and the tantalum oxide layer 4 are arranged in order from bottom to top;

[0039] Among them, the hafnium silicate layer 2, the titanium dioxide layer 3 and the tantalum oxide layer 4 combine to form a coating layer, and the tantalum oxide layer 4 is used to improve the wear resistance, corrosion resistance and scratch resistance of the titanium dioxide layer 3.

[0040] The present application optimizes the transmission path of light on the glass surface by sequentially arranging the hafnium silicate layer 2, the titanium dioxide layer 3 and the tantalum oxide layer 4 on the surface of the substrate layer 1, improves the optical performance, and significantly enhances the weather resistance and service life of the glass cover plate, and at the same time, gives it a customizable aesthetic effect. Specifically, the hafnium silicate layer 2 as the bottom layer, by virtue of its excellent adhesion and surface modification ability, lays a solid foundation for the entire coating layer; the middle layer adopts the titanium dioxide layer 3, which effectively reduces light reflection, improves light transmittance, and gives the coating layer self-cleaning function by virtue of its excellent optical performance, chemical stability and photocatalytic properties; the outermost layer adopts the tantalum oxide layer 4 with high refractive index and high light transmittance, forming a strong protective film, and significantly enhancing the wear resistance, corrosion resistance and scratch resistance of the coating layer.

[0041] In order to make the person skilled in the art better understand the technical scheme of the present application, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings.

[0042] It should be noted that the embodiments in the present application and the features and technical solutions in the embodiments can be combined with each other without conflict.

[0043] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0044] A coated cover plate comprises a substrate layer 1, a hafnium silicate layer 2, a titanium dioxide layer 3 and a tantalum oxide layer 4.

[0045] On the surface of the substrate layer 1, the hafnium silicate layer 2, the titanium dioxide layer 3 and the tantalum oxide layer 4 are sequentially arranged from bottom to top along the height direction of the substrate layer 1.

[0046] The hafnium silicate layer 2, the titanium dioxide layer 3 and the tantalum oxide layer 4 form a coating layer, and the tantalum oxide layer 4 is used to improve the wear resistance, corrosion resistance and scratch resistance of the titanium dioxide layer 3. The present application optimizes the transmission path of light on the glass surface by sequentially arranging the hafnium silicate layer 2, the titanium dioxide layer 3 and the tantalum oxide layer 4 on the surface of the substrate layer 1, improves the optical performance, significantly enhances the weather resistance and service life of the glass cover plate, and at the same time, gives it a customizable aesthetic effect. Specifically, the hafnium silicate layer 2 as the bottom layer, uses its excellent adhesion and surface modification ability to lay a solid foundation for the entire coating layer; the middle layer adopts the titanium dioxide layer 3, which effectively reduces light reflection, improves light transmittance and gives the coating layer self-cleaning function due to its excellent optical performance, chemical stability and photocatalytic properties; the outermost layer adopts the tantalum oxide layer 4 with high refractive index and high light transmittance, forming a strong protective film and significantly enhancing the wear resistance, corrosion resistance and scratch resistance of the coating layer.

[0047] In some specific embodiments, the thickness of the tantalum oxide layer 4 is less than the thickness of the titanium dioxide layer 3.

[0048] The purpose of the present application is:

[0049] 1. Improve the transmittance: by reasonably designing the thickness and refractive index of the coating layer, the reflection of light on the glass surface can be significantly reduced, the transmittance of light can be improved, and the glass cover plate can be brighter and clearer.

[0050] 2. Enhance weather resistance: the titanium dioxide layer 3 and the tantalum oxide layer 4 both have excellent chemical stability and weather resistance, which can protect the glass cover plate from the erosion of environmental factors such as ultraviolet light, moisture, acid and alkali, and prolong its service life.

[0051] 3. Improve the appearance: the coating layer can adjust the color and gloss according to the needs, so that the glass cover plate presents a more beautiful appearance effect.

[0052] The thickness of the hafnium silicate layer 2 is 10-30 nm, which can provide good adhesion, so that the upper coating layer is more firmly attached to the glass substrate; the thickness of the titanium dioxide layer 3 is 30-40 nm, which has excellent optical performance, chemical stability and weather resistance. It can be used as an antireflection film / transmission film, which can reduce the reflection of light on the glass surface and improve the transmittance of light by adjusting its thickness and refractive index. In addition, titanium dioxide also has certain photocatalytic properties, which can decompose organic matter and kill bacteria; the thickness of the tantalum oxide layer 4 is 15-25 nm, which has high refractive index and high light transmittance, and can be used as a protective film to improve the wear resistance, corrosion resistance and scratch resistance of the coating layer. At the same time, it can further adjust the optical performance of the coating layer, such as improving the transmittance of a specific waveband.

[0053] In some embodiments, the edge of the coating layer is provided with a protective part for isolating the edge of the coating layer from external impurities.

[0054] Because the adjacent layers are formed by coating, and different substrates (such as metal, ceramic, glass, etc.) have different adhesion abilities to the coating layer. At the same time, the cleanliness and roughness of the substrate surface also affect the adhesion effect, so in order to increase the adhesion, the protective part is used to isolate the edge of the coating layer from external impurities, so as to prevent the impurities from adhering to the edge of the coating layer and affecting the adhesion strength.

[0055] The protective part is a ring cover 5 surrounding the edge of the coating layer.

[0056] In some embodiments, the upper end of the ring cover 5 is flush with the upper surface of the tantalum oxide layer 4, and the lower end is flush with the ground of the substrate layer 1.

[0057] The wrapping of the ring cover 5 can play a role in active isolation.

[0058] In some embodiments, the protective part is a three-layer protective layer;

[0059] The first protective layer 6 is arranged at the edge of the hafnium silicate layer 2 and integrally arranged with the hafnium silicate layer 2;

[0060] The second protective layer 7 is arranged at the edge of the titanium dioxide layer 3 and integrally arranged with the titanium dioxide layer 3;

[0061] The third protective layer 8 is arranged at the edge of the tantalum oxide layer 4 and integrally arranged with the tantalum oxide layer 4.

[0062] In some embodiments, the first protective layer 6, the second protective layer 7 and the third protective layer 8 are sequentially stacked from inside to outside.

[0063] In some embodiments, the lower surface of the base layer 1 is provided with a clamping block 9, and the surface of the clamping block 9 is provided with an isolation block 10 connected with the protective part.

[0064] The arrangement of the first protective layer 6, the second protective layer 7 and the third protective layer 8 is equivalent to increasing the coverage of the coating layer on the base layer 1, thereby sufficiently increasing the effect of isolating the edge of the coating layer from foreign matters in the outside world.

[0065] The arrangement of the clamping block 9 and the isolation block 10 can block the edge of the isolation protective part, preventing defects from occurring at the edge of the protective part.

[0066] In some embodiments, the edge of the coating layer is provided with a protective part for isolating the edge of the coating layer from foreign matters in the outside world.

[0067] The protective part comprises a wrapping layer 11 arranged around the outer side of the base layer 1, and the upper end of the wrapping layer 11 is connected with the edge of the tantalum oxide layer 4 and is integrally arranged with the tantalum oxide layer 4.

[0068] In some embodiments, the lower surface of the base layer 1 is provided with an isolation layer 12, and the isolation layer 12 is connected with the lower end of the wrapping layer 11 and is integrally arranged with the wrapping layer 11.

[0069] The arrangement of the wrapping layer 11 and the isolation layer 12 can completely wrap the base layer 1, the hafnium silicate layer 2 and the titanium dioxide layer 3, thereby sufficiently playing the effect of isolating the edge of the coating layer from foreign matters in the outside world.

[0070] The use process of the coated cover plate provided by the utility model is as follows:

[0071] The utility model can optimize the transmission path of light on the glass surface by sequentially arranging the hafnium silicate layer 2, the titanium dioxide layer 3 and the tantalum oxide layer 4 on the surface of the base layer 1, improve the optical performance, and significantly enhance the weather resistance and service life of the glass cover plate, and at the same time, impart the customizable aesthetic effect. Specifically, the hafnium silicate layer 2 serves as the bottom layer, and by virtue of its excellent adhesion and surface modification capability, it lays a solid foundation for the entire coating layer; the intermediate layer adopts the titanium dioxide layer 3, which effectively reduces light reflection, improves light transmittance and imparts self-cleaning function to the coating layer by virtue of its excellent optical performance, chemical stability and photocatalytic properties; the outermost layer adopts the tantalum oxide layer 4 with high refractive index and high light transmittance, forming a strong protective film and significantly enhancing the wear resistance, corrosion resistance and scratch resistance of the coating layer.

[0072] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on terms should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electric connection or each other can communicate;Can be direct connection, also can indirectly connect through intermediate medium, can be two element internal communication or two element mutual action relation, unless another definite limitation.For ordinary skilled person in the art, can understand the concrete meaning of above-mentioned terms in the utility model according to specific circumstances.

[0073] Obviously, the above-described embodiments are only a part of the embodiments of the utility model, and not all the embodiments, and the preferred embodiments of the utility model are given in the drawings, but do not limit the patent range of the utility model.The utility model can be realized in many different forms, and contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive.Although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical scheme recorded in the foregoing each specific embodiment can be modified, or part of the technical features can be replaced equivalently.For equivalent structure made by using the contents of the utility model specification and drawings, direct or indirect use in other related technical fields, are also within the patent protection range of the utility model.

Claims

1. A coated cover sheet, characterized by, The coating film layer is composed of a substrate layer (1), a hafnium silicate layer (2), a titanium dioxide layer (3), and a tantalum oxide layer (4). The hafnium silicate layer (2), the titanium dioxide layer (3), and the tantalum oxide layer (4) are sequentially arranged from bottom to top along the height direction of the substrate layer (1) on the surface of the substrate layer (1). The hafnium silicate layer (2), the titanium dioxide layer (3), and the tantalum oxide layer (4) are combined to form a coating film layer, and the tantalum oxide layer (4) is used to improve the wear resistance, corrosion resistance, and scratch resistance of the titanium dioxide layer (3).

2. The coated cover panel according to claim 1, characterized in that The thickness of the tantalum oxide layer (4) is less than the thickness of the titanium dioxide layer (3).

3. The coated cover panel of claim 1, wherein, The edge of the coating film layer is provided with a protective part for isolating the edge of the coating film layer from external debris.

4. The coated cover panel according to claim 3, characterized in that The protective part is a ring cover (5) surrounding the edge of the coating film layer.

5. The coated cover panel according to claim 4, characterized in that The upper end of the ring cover (5) is flush with the upper surface of the tantalum oxide layer (4), and the lower end is flush with the ground surface of the substrate layer (1).

6. The coated cover panel according to claim 5, characterized in that The protective part is a three-layer protective layer. The first protective layer (6) is arranged at the edge of the hafnium silicate layer (2) and is integrally arranged with the hafnium silicate layer (2). The second protective layer (7) is arranged at the edge of the titanium dioxide layer (3) and is integrally arranged with the titanium dioxide layer (3). The third protective layer (8) is arranged at the edge of the tantalum oxide layer (4) and is integrally arranged with the tantalum oxide layer (4).

7. The coated cover panel according to claim 6, characterized in that The first protective layer (6), the second protective layer (7), and the third protective layer (8) are sequentially stacked from inside to outside.

8. The coated cover panel according to claim 7, characterized in that The lower surface of the substrate layer (1) is provided with a clamping block (9), and the surface of the clamping block (9) is provided with an isolation block (10) connected with the protective part.

9. The coated cover panel of claim 3, wherein, The protective part includes a wrapping layer (11) arranged around the outer side of the substrate layer (1), and the upper end of the wrapping layer (11) is connected with the edge of the tantalum oxide layer (4) and is integrally arranged with the tantalum oxide layer (4).

10. The coated cover panel according to claim 9, characterized in that The lower surface of the substrate layer (1) is provided with an isolation layer (12), and the isolation layer (12) is connected with the lower end of the wrapping layer (11) and is integrally arranged with the wrapping layer (11).

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