Cover plate structure with multiple plating layers

Abstract

The utility model discloses a cover plate structure with multiple plating layers. The cover plate structure comprises a base material, a stacking structure and a function reinforcing plating layer, the base material comprises a front surface and a back surface; the stacking structure is positioned and connected to the front surface, and the functional reinforcing plating layer is positioned and connected to the back surface; the stacked structure comprises a corrosion-resistant layer, a wear-resistant layer and a first alloy layer, and the corrosion-resistant layer, the wear-resistant layer and the first alloy layer are sequentially arranged from bottom to top by taking the thickness direction of the stacked structure as a reference; the functional reinforcing plating layer comprises a photosensitive color-changing layer and a second alloy layer, and the photosensitive color-changing layer and the second alloy layer are sequentially arranged from top to bottom by taking the thickness direction of the functional reinforcing plating layer as a reference. The comprehensive performance of the cover plate is also remarkably improved, and the urgent demand of the market on a high-quality cover plate material is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to display screen field especially involves a kind of cover plate structure with multilayer plating. BACKGROUND

[0002] With the rapid progress of electronic equipment and display technology, the demand for cover plate materials has become more stringent. Traditional cover plate materials, such as glass or plastic, have certain advantages in hardness and optical performance, but they perform poorly in wear resistance, scratch resistance and aesthetics.

[0003] For example, the patent document with application number CN201810147381.4 discloses a glass cover plate processing method, glass cover plate and mobile terminal. When polishing the 2.5D arc surface of the glass cover plate, the upper and lower surfaces of the glass cover plate are in contact with each other, which protects the upper and lower surfaces from contact with the bristles and prevents the flatness near the camera hole on the upper surface of the glass cover plate from deteriorating.

[0004] The technical solution disclosed in the above patent document is a common structure of glass cover plate, but it has limitations in specific use. Specifically:

[0005] The main problem in the current market is that traditional cover plate materials cannot meet the requirements of high hardness, high wear resistance, corrosion resistance and other aspects at the same time. Specifically, since multiple glass cover plates are in a stacked state, the materials of these cover plates are often lacking in wear resistance and scratch resistance when used, which limits their use in high-end applications.

[0006] Secondly, common glass cover plates have single functions and cannot meet the stringent requirements of modern electronic equipment and display technology for cover plate materials.

[0007] Therefore, how to solve the above-mentioned problems in the prior art has become the research topic of the utility model. UTILITY MODEL CONTENT

[0008] Therefore, it is necessary to provide a cover plate structure with multilayer plating to solve the above technical problems.

[0009] To solve the above technical problems, the utility model adopts the following technical solutions:

[0010] A cover plate structure with multilayer plating, comprising a substrate, a stacking structure and a functional reinforcement plating layer;

[0011] The substrate includes a front surface and a back surface. The stacking structure is positioned and connected to the front surface, and the functional reinforcement plating layer is positioned and connected to the back surface.

[0012] The stacked structure includes a corrosion-resistant layer, a wear-resistant layer, and a first alloy layer. With the thickness direction of the stacked structure as a reference, the corrosion-resistant layer, the wear-resistant layer, and the first alloy layer are arranged sequentially from bottom to top.

[0013] The functional reinforcing coating includes a photosensitive color-changing layer and a second alloy layer. Based on the thickness direction of the functional reinforcing coating, the photosensitive color-changing layer and the second alloy layer are arranged sequentially from top to bottom.

[0014] Furthermore, the back side includes a central region disposed in the central area of ​​the substrate surface and a border region disposed around the central region;

[0015] The functional reinforcement coating is applied to the border area.

[0016] Furthermore, the top view projections of the corrosion-resistant layer, the wear-resistant layer, and the first alloy layer overlap.

[0017] Furthermore, the cover structure also includes a protective portion, which is configured at the edge of the stacked structure and / or the functional reinforcing coating.

[0018] Furthermore, the protective section includes a first protective section, a second protective section, and a third protective section;

[0019] The first protective segment is disposed on the periphery of the substrate, the upper end of the first protective segment is flush with the upper surface of the first alloy layer, and the lower end of the first protective segment extends to the outer edge of the lower surface of the second alloy layer.

[0020] The second protective section is disposed on the lower surface of the second alloy layer and is integrally connected to the lower end of the first protective section;

[0021] The inner edge of the lower surface of the second alloy layer is positioned and connected to the third protective section. The upper end of the third protective section is connected to the lower surface of the substrate, and the lower end is integrally connected to the second protective section. The first protective section, the second protective section, and the third protective section are combined to form a wrapping stack structure and a wrapping structure for the edge of the functional reinforcing coating.

[0022] Furthermore, the lower surface of the substrate is provided with an auxiliary connecting section in the central area that connects to the third protective section.

[0023] Furthermore, the protective section includes a fourth protective section and a fifth protective section;

[0024] The upper end of the fourth protective section is integrally connected to the first alloy layer;

[0025] The lower end of the fifth protective section is integrally connected to the second alloy layer;

[0026] The other end of the fourth protection section is integrally connected with the other end of the fifth protection section and covers the periphery of the substrate.

[0027] Further, the fourth protection section and the fifth protection section have the same thickness.

[0028] Further, the protection part comprises a sixth protection section and an extension part arranged at the periphery below the substrate, and the lower end of the extension part extends to the same level as the lower surface of the second alloy layer.

[0029] The sixth protection section is integrally connected with one end of the second alloy layer towards the center area and attached to the lower surface of the substrate.

[0030] Further, the protection part comprises a seventh protection section, the upper end of the seventh protection section is integrally connected with the first alloy layer, the lower end is connected with the upper end of the extension part, and the seventh protection section is positioned at the periphery of the substrate.

[0031] Compared with the prior art, the utility model has the following beneficial effects:

[0032] The utility model discloses a glass substrate as the basis, first, the front surface is coated with poly sulfonated fluorinated ethylene layer (corrosion -resistant layer), silica layer (wear -resistant layer) and chromium nickel alloy layer (first alloy layer) in proper order. Poly sulfonated fluorinated ethylene layer as the bottom layer, provides excellent chemical corrosion resistance and low friction coefficient, silica layer utilizes its high hardness and good optical transparency, enhances wear resistance and scratch resistance, and chromium nickel alloy layer is as the outermost layer, provides high hardness, wear resistance and corrosion resistance protection, and simultaneously endows the metal luster of cover plate. In addition, the frame area on the back of the cover plate adopts the photochromic ink (photochromic layer) to print the pattern, and the copper chromium zirconium alloy layer (second alloy layer) is additionally arranged below the ink layer (photochromic layer), to prevent the ink layer from being scratched, and simultaneously improve the mechanical property and thermal stability of the overall structure. This layered structure design not only realizes the performance complementation between layers, but also significantly improves the comprehensive performance of the cover plate, satisfies the urgent demand of the market to high -quality cover plate material. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 The center area structure schematic view provided by the utility model is shown in the figure.

[0034] Figure 2 The stacking structure schematic view provided by the utility model is shown in the figure.

[0035] Figure 3 The first protection section structure schematic view provided by the utility model is shown in the figure.

[0036] Figure 4 The fourth protection section structure schematic view provided by the utility model is shown in the figure.

[0037] Figure 5The seventh protection section structure schematic view is provided in the utility model.

[0038] The mark in the figure is explained as follows:

[0039] 1, base material; 2, stacking structure; 3, functional reinforcing plating layer; 4, corrosion-resistant layer; 5, wear-resistant layer; 6, first alloy layer; 7, photosensitive color-changing layer; 8, second alloy layer; 9, central region; 10, first protection section; 11, second protection section; 12, third protection section; 13, auxiliary connecting section; 14, fourth protection section; 15, fifth protection section; 16, sixth protection section; 17, extension; 18, seventh protection section. DETAILED DESCRIPTION

[0040] In order for those skilled in the art to better understand the utility model scheme, the technical scheme in the utility model embodiments will be clearly and completely described below in conjunction with the drawings in the utility model embodiments. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor should belong to the protection scope of the utility model.

[0041] The main problem existing in the current market as described in the background art is that the traditional cover plate material cannot meet the requirements of high hardness, high wear resistance, corrosion resistance and other aspects at the same time. Specifically, since multiple glass cover plates are in a mutual stacking state, when in use, the materials of these cover plates are often deficient in wear resistance and scratch resistance due to being conventional glass materials, which limits their use in high-end applications. Secondly, the common glass cover plate has a single function and cannot meet the stringent requirements of modern electronic equipment and display technology on cover plate materials.

[0042] In order to solve this technical problem, the utility model provides a cover plate structure with multi-layer plating.

[0043] Specifically, please refer to Figures 1-5 , a cover plate structure with multi-layer plating, comprising a base material 1, a stacking structure 2 and a functional reinforcing plating layer 3;

[0044] The base material 1 comprises a front surface and a back surface; the stacking structure 2 is positioned and connected to the front surface, and the functional reinforcing plating layer 3 is positioned and connected to the back surface;

[0045] The stacking structure 2 comprises a corrosion-resistant layer 4, a wear-resistant layer 5 and a first alloy layer 6, and the corrosion-resistant layer 4, the wear-resistant layer 5 and the first alloy layer 6 are sequentially arranged from bottom to top in the thickness direction of the stacking structure 2;

[0046] The functional reinforcing plating layer 3 comprises a photosensitive color-changing layer 7 and a second alloy layer 8, which are arranged in sequence from top to bottom in the thickness direction of the functional reinforcing plating layer 3.

[0047] The utility model discloses a glass substrate as the foundation, first in its front surface in turn plating poly sulfonated fluorine ethylene layer (corrosion -resistant layer 4), silica layer (wear -resistant layer 5) and chromium nickel alloy layer (first alloy layer 6). Poly sulfonated fluorine ethylene layer as the bottom layer, provide excellent chemical corrosion resistance and low friction coefficient;Silica layer utilizes its high hardness and good optical transparency, enhances wear resistance and scratch resistance ability;Chromium nickel alloy layer then as the outermost layer, provide high hardness, wear resistance and corrosion -resistant protection, while endowing the cover plate metal luster. In addition, in the cover plate back frame area, adopt photosensitive color-changing ink (photosensitive color-changing layer 7) and print the pattern, and add copper chromium zirconium alloy layer (second alloy layer 8) below the ink layer (photosensitive color-changing layer 7), to prevent the ink layer from being scratched, while improving the mechanical properties and thermal stability of overall structure. This layered structure design not only realizes the performance complementation between each layer, but also significantly improves the comprehensive performance of the cover plate, meets the urgent needs of the market for high-quality cover plate materials.

[0048] In order to enable the personnel in the technical field to better understand the utility model scheme, the technical scheme in the utility model embodiment will be clearly and completely described below in combination with the drawings.

[0049] It should be noted that the embodiments in the utility model and the features and technical solutions in the embodiments can be combined with each other without conflict.

[0050] It should be noted that: similar signs 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 the subsequent drawings.

[0051] First embodiment

[0052] A cover plate structure with multi-layer plating layer, comprising a base material 1, a stacking structure 2 and a functional reinforcing plating layer 3.

[0053] The base material 1 comprises a front surface and a back surface; the stacking structure 2 is positioned and connected to the front surface, and the functional reinforcing plating layer 3 is positioned and connected to the back surface.

[0054] The stacking structure 2 comprises a corrosion-resistant layer 4, a wear-resistant layer 5 and a first alloy layer 6, which are arranged in sequence from bottom to top in the thickness direction of the stacking structure 2.

[0055] The functional reinforcing plating layer 3 comprises a photosensitive color-changing layer 7 and a second alloy layer 8, and the photosensitive color-changing layer 7 and the second alloy layer 8 are sequentially arranged from top to bottom in the thickness direction of the functional reinforcing plating layer 3.

[0056] The utility model discloses a glass substrate as the foundation, first in its front surface in turn is plated with polysulfonated fluorinated ethylene layer (corrosion -resistant layer 4), silica layer (wear -resistant layer 5) and chromium nickel alloy layer (first alloy layer 6). Polysulfonated fluorinated ethylene layer as the bottom layer, provide excellent chemical corrosion resistance and low friction coefficient;Silica layer utilizes its high hardness and good optical transparency, enhances wear resistance and scratch resistance ability;Chromium nickel alloy layer then as the outermost layer, provide high hardness, wear resistance and corrosion resistance protection, while endowing the cover plate metal luster. In addition, in the cover plate back frame area, adopt photosensitive color-changing ink (photosensitive color-changing layer 7) to print the pattern, and add copper chromium zirconium alloy layer (second alloy layer 8) below the ink layer (photosensitive color-changing layer 7), to prevent the ink layer from being scratched, while improving the mechanical properties and thermal stability of overall structure. This layered structure design not only realizes the performance complementation between each layer, but also significantly improves the comprehensive performance of the cover plate, meets the urgent needs of the market for high-quality cover plate materials.

[0057] Preferably, the back surface comprises a center area 9 arranged in the center area 9 of the substrate surface area and a frame area arranged around the center area 9.

[0058] The functional reinforcing plating layer 3 is arranged in the frame area.

[0059] The polysulfonated fluorinated ethylene layer has a thickness of 50-100nm, and as the bottom layer, the polysulfonated fluorinated ethylene provides a good substrate for the subsequent plating layer with excellent chemical corrosion resistance, low friction coefficient and waterproof performance, and enhances the durability of the overall plating layer.

[0060] The silica layer has a thickness of 20-30nm, and is arranged above the polysulfonated fluorinated ethylene layer, utilizes good optical transparency (can increase transmittance) and high hardness to enhance the wear resistance and scratch resistance of the cover plate, and maintains good visual effect.

[0061] The nickel alloy layer has a thickness of 50-80nm, and as the outermost layer, the chromium nickel alloy layer effectively resists external scratches and corrosion with high hardness, high wear resistance and good corrosion resistance, and protects the inner plating layer from damage. At the same time, the metal luster of the chromium nickel alloy also adds beauty to the cover plate.

[0062] The ink layer (back frame area) has a thickness of 10-12μm, and changes color according to the change of light or temperature, increases the interest and beauty of the product.

[0063] Copper-chromium-zirconium alloy layer (under the ink layer): namely copper-chromium-zirconium alloy (Cu-Cr-Zr alloy), thickness: 20-30 nm, main function is to prevent the ink layer from being scratched, at the same time, it provides additional protection for the ink layer by virtue of its excellent mechanical properties and thermal stability.

[0064] Preferably, the top projections of the corrosion-resistant layer 4, the wear-resistant layer 5, and the first alloy layer 6 coincide. By virtue of the above design, the phenomenon of no plating layer on the upper surface of the substrate 1 is prevented.

[0065] Preferably, the cover structure further comprises a protective part, which is arranged at the edge of the stacked structure 2 and / or the functional reinforcement plating layer 3.

[0066] Since the side of the substrate 1 is prone to accumulate sundries, in order to protect the stacked structure 2 and the functional reinforcement plating layer 3, the protective part is used for isolation protection.

[0067] Second embodiment

[0068] The cover structure provided with the multi-layer plating layer of the first embodiment is further optimized, and the protective part comprises a first protective section 10, a second protective section 11, and a third protective section 12.

[0069] The first protective section 10 is arranged at the circumferential side of the substrate 1, and the upper end of the first protective section 10 is flush with the upper surface of the first alloy layer 6; the lower end of the first protective section 10 extends to the outside edge of the lower surface of the second alloy layer 8.

[0070] The second protective section 11 is arranged at the lower surface of the second alloy layer 8 and is integrally connected with the lower end of the first protective section 10.

[0071] The inside edge of the lower surface of the second alloy layer 8 is positioned and connected with the third protective section 12, the upper end of the third protective section 12 is connected with the lower surface of the substrate 1, and the lower end is integrally connected with the second protective section 11, and the first protective section 10, the second protective section 11, and the third protective section 12 combine to form a wrapping structure that wraps the edge of the stacked structure 2 and the functional reinforcement plating layer 3.

[0072] Preferably, the lower surface of the substrate 1 is provided with an auxiliary connecting section 13 connected with the third protective section 12 in the central area 9.

[0073] By cooperation of the first protective section 10, the second protective section 11, and the third protective section 12, the edge of the stacked structure 2 and the functional reinforcement plating layer 3 is wrapped, and when sundries or scratches occur, the wrapping structure is damaged first, thereby reducing the damage probability of the stacked structure 2 and the functional reinforcement plating layer 3.

[0074] The presence of the auxiliary connecting section 13 can prevent the functional reinforcement plating layer 3 from being damaged by sundries in the central area 9.

[0075] Third embodiment

[0076] The cover plate structure provided with multi-layer plating of the first embodiment is further optimized, and the protective part includes a fourth protective section 14 and a fifth protective section 15.

[0077] The upper end of the fourth protective section 14 is integrally connected with the first alloy layer 6.

[0078] The lower end of the fifth protective section 15 is integrally connected with the second alloy layer 8.

[0079] The other end of the fourth protective section 14 is integrally connected with the other end of the fifth protective section 15 and wrapped around the side of the substrate 1.

[0080] Preferably, the fourth protective section 14 and the fifth protective section 15 have the same thickness.

[0081] The second embodiment is more complicated in operation, has a large coverage range, and has more procedures. In the present embodiment, the fourth protective section 14 and the fifth protective section 15 are respectively extended from the first alloy layer 6 and the second alloy layer 8, thereby reducing the procedures and wrapping the edges of the stacked structure 2 and the functional reinforcing plating layer 3.

[0082] Fourth embodiment

[0083] The cover plate structure provided with multi-layer plating of the first embodiment is further optimized, and the protective part includes a sixth protective section 16 and an extension 17 arranged on the lower side of the substrate 1, and the lower end of the extension 17 extends to the same level as the lower surface of the second alloy layer 8.

[0084] The sixth protective section 16 is integrally connected with one end of the second alloy layer 8 towards the central area 9 and attached to the lower surface of the substrate 1.

[0085] Preferably, the protective part includes a seventh protective section 18, the upper end of the seventh protective section 18 is integrally connected with the first alloy layer 6, the lower end is connected with the upper end of the extension 17, and the seventh protective section 18 is positioned on the side of the substrate 1.

[0086] The procedures are reduced and the material utilization is reduced by arranging the extension 17 on the substrate 1.

[0087] The use process of the cover plate structure with the multi-layer plating layer provided by the utility model is as follows: the utility model takes the glass substrate as the basis, firstly plating the polysulfonated fluorinated ethylene layer (corrosion resistant layer 4), the silicon dioxide layer (wear resistant layer 5) and the chromium-nickel alloy layer (first alloy layer 6) on the front surface in turn. The polysulfonated fluorinated ethylene layer serves as the bottom layer, provides excellent chemical corrosion resistance and low friction coefficient; the silicon dioxide layer utilizes its high hardness and good optical transparency, enhances the wear resistance and scratch resistance; the chromium-nickel alloy layer serves as the outermost layer, provides high hardness, wear resistance and corrosion resistance protection, and at the same time imparts the cover plate with metallic luster. In addition, the photosensitive color-changing ink (photosensitive color-changing layer 7) is used to print patterns in the frame area on the back surface of the cover plate, and the copper-chromium-zirconium alloy layer (second alloy layer 8) is additionally arranged below the ink layer (photosensitive color-changing layer 7), so as to prevent the ink layer from being scratched and at the same time improve the mechanical properties and thermal stability of the overall structure. The layered structure design not only realizes the performance complementation between the layers, but also significantly improves the comprehensive performance of the cover plate, and meets the urgent needs of the market for high-quality cover plate materials.

[0088] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on should be 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 directly connected, also can indirectly connect through the intermediate medium, can be the communication or the interaction relationship of two elements inside two elements, unless another definite limitation. For ordinary skilled in the art, the above terms can be understood according to the specific meaning in the utility model.

[0089] 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 conversely, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing specific embodiments, or make equivalent replacement to part of the technical features. Any equivalent structure made by using the contents of the utility model specification and drawings, directly or indirectly used in other related technical fields, is also within the patent protection range of the utility model.

Claims

1. A cover plate structure with multiple coatings, characterized in that, It includes a substrate (1), a stacked structure (2), and a functional reinforcing coating (3); The substrate (1) includes a front side and a back side; the stacked structure (2) is positioned and connected to the front side, and the functional reinforcing coating (3) is positioned and connected to the back side; The stacked structure (2) includes a corrosion-resistant layer (4), a wear-resistant layer (5), and a first alloy layer (6). Based on the thickness direction of the stacked structure (2), the corrosion-resistant layer (4), the wear-resistant layer (5), and the first alloy layer (6) are arranged sequentially from bottom to top. The functional reinforcing coating (3) includes a photosensitive color-changing layer (7) and a second alloy layer (8). Based on the thickness direction of the functional reinforcing coating (3), the photosensitive color-changing layer (7) and the second alloy layer (8) are arranged sequentially from top to bottom.

2. The cover plate structure with multiple coatings according to claim 1, characterized in that, The back side includes a central region (9) disposed in the central area of ​​the substrate surface and a border region disposed around the central region (9); The functional reinforcement coating (3) is disposed in the frame area.

3. The cover plate structure with multiple coatings according to claim 1 or 2, characterized in that, The top view projections of the corrosion-resistant layer (4), the wear-resistant layer (5), and the first alloy layer (6) overlap.

4. The cover plate structure with multiple coatings according to claim 1, characterized in that, The cover structure also includes a protective section, which is disposed at the edge of the stacked structure (2) and / or the functional reinforcing coating (3).

5. The cover plate structure with multiple coatings according to claim 4, characterized in that, The protective section includes a first protective section (10), a second protective section (11), and a third protective section (12). The first protective section (10) is disposed on the periphery of the substrate (1), the upper end of the first protective section (10) is flush with the upper surface of the first alloy layer (6); the lower end of the first protective section (10) extends to the outer edge of the lower surface of the second alloy layer (8). The second protective section (11) is disposed on the lower surface of the second alloy layer (8) and is integrally connected to the lower end of the first protective section (10); The inner edge of the lower surface of the second alloy layer (8) is positioned and connected to the third protective section (12). The upper end of the third protective section (12) is connected to the lower surface of the substrate (1), and the lower end is integrally connected to the second protective section (11). The first protective section (10), the second protective section (11), and the third protective section (12) are combined to form a wrapping stack structure (2) and a wrapping structure of the edge of the functional reinforcing coating (3).

6. The cover plate structure with multiple coatings according to claim 5, characterized in that, The lower surface of the substrate (1) is provided with an auxiliary connecting section (13) in the central area (9) that connects to the third protective section (12).

7. The cover plate structure with multiple coatings according to claim 4, characterized in that, The protective section includes a fourth protective section (14) and a fifth protective section (15). The upper end of the fourth protective section (14) is integrally connected to the first alloy layer (6); The lower end of the fifth protective section (15) is integrally connected to the second alloy layer (8); The other end of the fourth protective section (14) is integrally connected to the other end of the fifth protective section (15) and covers the periphery of the substrate (1).

8. The cover plate structure with multiple coatings according to claim 7, characterized in that, The fourth protective section (14) and the fifth protective section (15) have the same thickness.

9. The cover plate structure with multiple coatings according to claim 5, characterized in that, The protective section includes a sixth protective section (16) and an extension (17) disposed on the lower periphery of the substrate (1), the lower end of the extension (17) extending to be flush with the lower surface of the second alloy layer (8); The sixth protective section (16) is integrally connected to one end of the second alloy layer (8) facing the central area (9) and attached to the lower surface of the substrate (1).

10. The cover plate structure with multiple coatings according to claim 9, characterized in that, The protective part includes a seventh protective section (18), the upper end of which is integrally connected to the first alloy layer (6), and the lower end is connected to the upper end of the extension (17). The seventh protective section (18) is positioned on the periphery of the substrate (1).

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