Cover plate with coating layer

Abstract

The utility model discloses a cover plate with coating layers. The cover plate comprises a first coating, a second coating, a third coating, a fourth coating and a substrate, the first plating layer, the second plating layer, the third plating layer, the fourth plating layer and the substrate are sequentially arranged from top to bottom in the thickness direction of the cover plate; the cover plate further comprises a photosensitive ink layer and an alloy plating layer, the photosensitive ink layer and the alloy plating layer are sequentially attached to each other on the lower surface of the substrate, and the photosensitive ink layer is configured to change colors according to changes of light or temperature; the photosensitive ink layer and the alloy plating layer are arranged on the edge of the lower surface of the substrate in a frame shape, and the four plating layers are matched with the photosensitive ink layer and the alloy plating layer, so that the performance of the cover plate is comprehensively upgraded.

Description

Technical Field

[0001] This utility model relates to the field of display screens, and in particular to a cover plate with a coating layer. Background Technology

[0002] With the rapid advancement of electronic devices and display technologies, the demands on cover glass materials have become increasingly stringent. Traditional cover glass materials, such as glass or plastic, offer advantages in hardness and optical properties, but they fall short in terms of abrasion resistance, scratch resistance, and aesthetics. For high-end consumer electronics products, such as smartphones, tablets, and other portable devices, the cover glass must not only provide sufficient mechanical strength to protect internal components but also possess high light transmittance to ensure clear visibility of screen content. Furthermore, it must be corrosion-resistant and capable of supporting dynamic visual effects, such as color changes or reflections, thereby enhancing the user's visual experience.

[0003] A representative example is the patent document with application number CN201810147381.4, which discloses a processing method for a glass cover, a glass cover, and a mobile terminal. When polishing the 2.5D curved surface of the glass cover, since multiple glass covers are stacked on top of each other, the upper and lower surfaces of the glass covers are in contact with each other, which protects the upper and lower surfaces, prevents them from contacting the brush bristles, and avoids the flatness near the camera hole on the upper surface of the glass cover from deteriorating.

[0004] The technical solutions disclosed in the aforementioned patent documents are common glass cover structures, but they still have limitations in practical use, as follows:

[0005] The main problem in the current market is that traditional cover glass materials cannot simultaneously meet the requirements of high strength, high light transmittance, corrosion resistance, and dynamic visual effects. Specifically, because multiple glass cover glass panels are stacked on top of each other, these cover glass panels, being made of conventional glass, often lack wear resistance and scratch resistance, which limits their use in high-end applications.

[0006] Secondly, common glass covers have relatively limited functions and cannot meet the stringent requirements of modern electronic devices and display technologies for cover materials.

[0007] Therefore, how to overcome the shortcomings of the existing technology mentioned above has become the subject of this utility model. Utility Model Content

[0008] Based on this, it is necessary to address the technical issues raised in the background section, namely that since multiple glass covers are stacked together, the materials of these covers, being conventional glass, often lack wear resistance and scratch resistance, which limits their use in high-end applications; secondly, common glass covers have relatively simple functions and cannot meet the stringent requirements of modern electronic devices and display technologies for cover materials. Therefore, a cover with a coating layer is needed.

[0009] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0010] A cover plate having a coating layer, the cover plate comprising a first coating layer, a second coating layer, a third coating layer, a fourth coating layer, and a substrate;

[0011] Along the thickness direction of the cover plate, the first coating, the second coating, the third coating, the fourth coating, and the substrate are arranged sequentially from top to bottom;

[0012] The cover plate also includes a photosensitive ink layer and an alloy plating layer. On the lower surface of the substrate, the photosensitive ink layer and the alloy plating layer are sequentially bonded together. The photosensitive ink layer is configured to change color according to changes in light or temperature.

[0013] Both the photosensitive ink layer and the alloy plating layer are arranged in a frame shape at the lower surface edge of the substrate.

[0014] Furthermore, the first coating, the second coating, the third coating, and the fourth coating are combined to form a stacked structure.

[0015] Furthermore, the lower surface of the substrate has a border area and a display area, and the photosensitive ink layer and the alloy plating layer are matched and disposed in the border area.

[0016] Furthermore, a protective portion is provided on the lower surface of the substrate, and is configured to protect the photosensitive ink layer and the alloy plating layer.

[0017] Furthermore, the protective portion includes a groove disposed on the lower surface of the substrate, the groove being matched with the photosensitive ink layer and the alloy plating layer;

[0018] The groove is a structure that protrudes downwards from the substrate or is recessed into the substrate and has a U-shaped cross-section.

[0019] Furthermore, the depth of the groove is at least the same as the thickness of the photosensitive ink layer.

[0020] Furthermore, the lower surface of the substrate is provided with a positioning groove, which is arranged in a ring shape along the lower edge of the substrate;

[0021] The protective part is positioned in the positioning groove and encapsulates the photosensitive ink layer and the alloy plating layer.

[0022] Furthermore, the protective part includes a first protective part, a second protective part, and a third protective part connected in sequence;

[0023] The first protective part is positioned within the positioning groove;

[0024] The second protective part is integrally connected between the first protective part and the third protective part, and the third protective part is positioned inside the photosensitive ink layer and the alloy plating layer;

[0025] The first protective part, the second protective part, and the third protective part are combined to form a structure that encapsulates the photosensitive ink layer and the alloy plating layer.

[0026] Furthermore, the lower surface of the substrate is provided with a receiving groove for accommodating the third protective part.

[0027] Furthermore, the thickness of the first protective part is the same as that of the positioning groove.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] This invention achieves a comprehensive upgrade in cover plate performance through the combination of four coating layers, a photosensitive ink layer, and an alloy coating layer. Based on a glass substrate, the front side is sequentially coated with a polysulfonated fluoride layer (fourth coating layer), a magnesium fluoride layer (third coating layer), a copper-chromium-zirconium alloy layer (second coating layer), and a chromium-nickel alloy layer (first coating layer), forming a multi-layered composite protective system. The polysulfonated fluoride layer, as the bottom layer, provides excellent chemical stability and low friction characteristics; the magnesium fluoride layer significantly improves light transmittance and wear resistance; the copper-chromium-zirconium alloy layer, as the intermediate support layer, combines mechanical strength and conductivity; and the outermost chromium-nickel alloy layer, with its high hardness, wear resistance, and aesthetics, effectively resists external damage. Furthermore, the back frame area uses a photosensitive color-changing ink layer, supplemented by a chromium-nickel alloy protective layer, achieving both dynamic visual effects and enhancing the durability of the ink layer. This layered structure not only significantly improves the cover plate's durability, optical performance, and aesthetics but also endows it with multifunctionality and higher security, meeting the stringent requirements of modern electronic devices and display technologies for cover plate materials. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the border area structure in this utility model;

[0031] Figure 2 This is a schematic diagram of the longitudinal section structure of the cover plate in this utility model;

[0032] Figure 3 This is a schematic diagram of the groove structure in this utility model;

[0033] Figure 4 This is a schematic diagram of the positioning groove structure in this utility model.

[0034] The markings in the diagram are explained as follows:

[0035] 1. First plating layer; 2. Second plating layer; 3. Third plating layer; 4. Fourth plating layer; 5. Substrate; 6. Photosensitive ink layer; 7. Alloy plating layer; 8. Frame area; 9. Display area; 10. Groove; 11. Positioning groove; 12. First protective part; 13. Second protective part; 14. Third protective part; 15. Receiving groove. Detailed Implementation

[0036] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0037] As described in the background art, since multiple glass covers are stacked on top of each other, the materials of these covers, being conventional glass, often lack wear resistance and scratch resistance, which limits their use in high-end applications. Secondly, common glass covers have relatively simple functions and cannot meet the stringent requirements of modern electronic devices and display technologies for cover materials.

[0038] To solve this technical problem, this utility model provides a cover plate with a coating layer.

[0039] For details, please refer to Figures 1-4 A cover plate having a coating layer, the cover plate including a first coating layer 1, a second coating layer 2, a third coating layer 3, a fourth coating layer 4, and a substrate 5;

[0040] Along the thickness direction of the cover plate, the first coating layer 1, the second coating layer 2, the third coating layer 3, the fourth coating layer 4, and the substrate 5 are arranged sequentially from top to bottom;

[0041] The cover plate also includes a photosensitive ink layer 6 and an alloy plating layer 7. On the lower surface of the substrate 5, the photosensitive ink layer 6 and the alloy plating layer 7 are sequentially bonded together. The photosensitive ink layer 6 is configured to change color according to changes in light or temperature.

[0042] Both the photosensitive ink layer 6 and the alloy plating layer 7 are arranged in a frame shape at the lower surface edge of the substrate 5.

[0043] This invention achieves a comprehensive upgrade in cover plate performance through the combination of four coating layers, a photosensitive ink layer 6, and an alloy coating layer 7. The structure is based on a glass substrate 5, with the front side sequentially coated with a polysulfonated fluoride layer (fourth coating layer 4), a magnesium fluoride layer (third coating layer 3), a copper-chromium-zirconium alloy layer (second coating layer 2), and a chromium-nickel alloy layer (first coating layer 1), forming a multi-layered composite protective system. The polysulfonated fluoride layer, as the bottom layer, provides excellent chemical stability and low friction characteristics; the magnesium fluoride layer significantly improves light transmittance and wear resistance; the copper-chromium-zirconium alloy layer, as the intermediate support layer, combines mechanical strength and conductivity; and the outermost chromium-nickel alloy layer, with its high hardness, wear resistance, and aesthetics, effectively resists external damage. Furthermore, the back frame area 8 uses a photosensitive color-changing ink layer, supplemented by a chromium-nickel alloy protective layer, achieving both dynamic visual effects and enhancing the durability of the ink layer. This layered structure not only significantly improves the durability, optical performance, and aesthetics of the cover plate, but also endows it with multifunctionality and higher security, meeting the stringent requirements of modern electronic devices and display technologies for cover plate materials.

[0044] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0045] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0046] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0047] First Embodiment

[0048] A cover plate with a coating layer, the cover plate includes a first coating layer 1, a second coating layer 2, a third coating layer 3, a fourth coating layer 4, and a substrate 5;

[0049] Along the thickness direction of the cover plate, the first coating layer 1, the second coating layer 2, the third coating layer 3, the fourth coating layer 4, and the substrate 5 are arranged sequentially from top to bottom;

[0050] The cover plate also includes a photosensitive ink layer 6 and an alloy plating layer 7. On the lower surface of the substrate 5, the photosensitive ink layer 6 and the alloy plating layer 7 are sequentially bonded together. The photosensitive ink layer 6 is configured to change color according to changes in light or temperature.

[0051] Both the photosensitive ink layer 6 and the alloy plating layer 7 are arranged in a frame shape at the lower surface edge of the substrate 5.

[0052] This invention achieves a comprehensive upgrade in cover plate performance through the combination of four coating layers, a photosensitive ink layer 6, and an alloy coating layer 7. The structure is based on a glass substrate 5, with the front side sequentially coated with a polysulfonated fluoride layer (fourth coating layer 4), a magnesium fluoride layer (third coating layer 3), a copper-chromium-zirconium alloy layer (second coating layer 2), and a chromium-nickel alloy layer (first coating layer 1), forming a multi-layered composite protective system. The polysulfonated fluoride layer, as the bottom layer, provides excellent chemical stability and low friction characteristics; the magnesium fluoride layer significantly improves light transmittance and wear resistance; the copper-chromium-zirconium alloy layer, as the intermediate support layer, combines mechanical strength and conductivity; and the outermost chromium-nickel alloy layer, with its high hardness, wear resistance, and aesthetics, effectively resists external damage. Furthermore, the back frame area 8 uses a photosensitive color-changing ink layer, supplemented by a chromium-nickel alloy protective layer, achieving both dynamic visual effects and enhancing the durability of the ink layer. This layered structure not only significantly improves the durability, optical performance, and aesthetics of the cover plate, but also endows it with multifunctionality and higher security, meeting the stringent requirements of modern electronic devices and display technologies for cover plate materials.

[0053] In some specific embodiments, the first coating layer 1, the second coating layer 2, the third coating layer 3, and the fourth coating layer 4 are combined to form a stacked structure.

[0054] In some specific embodiments, the lower surface of the substrate 5 has a border area 8 and a display area 9, and the photosensitive ink layer 6 and the alloy plating layer 7 are matched and disposed in the border area 8.

[0055] With the above design, the positions of the photosensitive ink layer 6 and the alloy coating layer 7 will not be offset.

[0056] Second Embodiment

[0057] The cover plate with a coating layer provided in Example 1 is further optimized. A protective portion is provided on the lower surface of the substrate 5 and is configured to protect the photosensitive ink layer 6 and the alloy coating layer 7.

[0058] Since the edges of the photosensitive ink layer 6 are exposed, it is easy for it to be contaminated with debris or damaged. Therefore, the photosensitive ink layer 6 and the alloy plating layer 7 are protected by a protective part.

[0059] In some specific embodiments, the protective part includes a groove 10 disposed on the lower surface of the substrate 5, the groove 10 being matched with the photosensitive ink layer 6 and the alloy plating layer 7;

[0060] The groove 10 is a structure that protrudes downward toward the substrate 5 or is recessed into the substrate 5 and has a U-shaped cross-section.

[0061] The photosensitive ink layer 6 and the alloy coating layer 7 are accommodated and placed through the groove 10, so that the photosensitive ink layer 6 and the alloy coating layer 7 are wrapped up.

[0062] In some specific embodiments, the depth of the groove 10 is at least the same as the thickness of the photosensitive ink layer 6. This design allows the photosensitive ink layer 6 to be shielded; if the depth of the groove 10 is small, its protective effect will be insufficient.

[0063] Third Embodiment

[0064] The cover plate with a coating layer provided in Embodiment 1 or 2 is further optimized by providing a positioning groove 11 on the lower surface of the substrate 5, and the positioning groove 11 is arranged in a ring along the lower edge of the substrate 5.

[0065] The protective part is positioned in the positioning groove 11 and wraps the photosensitive ink layer 6 and the alloy plating layer 7.

[0066] The protective portion encloses the photosensitive ink layer 6 and the alloy plating layer 7. Compared to the second embodiment, this requires a concave or convex design, which is more complicated and difficult to process, and prone to cracking. To solve this problem, a positioning groove 11 is provided at the lower edge of the substrate 5 to position the protective portion.

[0067] In some specific embodiments, the protective part includes a first protective part 12, a second protective part 13, and a third protective part 14 connected in sequence;

[0068] The first protective part 12 is positioned within the positioning groove 11;

[0069] The second protective part 13 is integrally connected between the first protective part 12 and the third protective part 14, and the third protective part 14 is positioned inside the photosensitive ink layer 6 and the alloy plating layer 7.

[0070] The first protective part 12, the second protective part 13 and the third protective part 14 are combined to form a structure that encapsulates the photosensitive ink layer 6 and the alloy plating layer 7.

[0071] The first protective part 12, the second protective part 13 and the third protective part 14 are combined to form a structure that encloses the photosensitive ink layer 6 and the alloy plating layer 7, so that the photosensitive ink layer 6 and the alloy plating layer 7 are not exposed, and the structure should be light-transmitting.

[0072] In some specific embodiments, the lower surface of the substrate 5 is provided with a receiving groove 15 for accommodating the third protective part 14. By accommodating the third protective part 14 with the receiving groove 15, the cooperation with the positioning groove 11 ensures that neither end of the protective part is contaminated with debris.

[0073] In some specific embodiments, the thickness of the first protective part 12 is the same as that of the positioning groove 11. This design prevents the edge of the first protective part 12 from protruding and affecting assembly.

[0074] The application process of the cover plate with a coating layer provided by this utility model is as follows: This utility model can achieve a comprehensive upgrade of the cover plate's performance through the cooperation of four coating layers, a photosensitive ink layer 6, and an alloy coating layer 7. The structure is based on a glass substrate 5, with the front side sequentially coated with a polysulfonated fluoride layer (fourth coating layer 4), a magnesium fluoride layer (third coating layer 3), a copper-chromium-zirconium alloy layer (second coating layer 2), and a chromium-nickel alloy layer (first coating layer 1), forming a multi-layer composite protective system. The polysulfonated fluoride layer, as the bottom layer, provides excellent chemical stability and low friction characteristics; the magnesium fluoride layer significantly improves light transmittance and wear resistance; the copper-chromium-zirconium alloy layer, as the intermediate support layer, combines mechanical strength and conductivity; and the outermost chromium-nickel alloy layer, with its high hardness, wear resistance, and aesthetics, effectively resists external damage. Furthermore, the back frame area 8 uses a photosensitive color-changing ink layer, supplemented by a chromium-nickel alloy protective layer, achieving both dynamic visual effects and enhancing the durability of the ink layer. This layered structure not only significantly improves the durability, optical performance, and aesthetics of the cover plate, but also endows it with multifunctionality and higher security, meeting the stringent requirements of modern electronic devices and display technologies for cover plate materials.

[0075] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0076] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; conversely, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A cover plate having a coating layer, characterized in that, The cover plate includes a first plating layer (1), a second plating layer (2), a third plating layer (3), a fourth plating layer (4), and a substrate (5); Along the thickness direction of the cover plate, the first coating (1), the second coating (2), the third coating (3), the fourth coating (4), and the substrate (5) are arranged sequentially from top to bottom; The cover plate also includes a photosensitive ink layer (6) and an alloy plating layer (7). On the lower surface of the substrate (5), the photosensitive ink layer (6) and the alloy plating layer (7) are sequentially bonded together. The photosensitive ink layer (6) is configured to change color according to changes in light or temperature. The photosensitive ink layer (6) and the alloy plating layer (7) are both frame-shaped and disposed at the lower surface edge of the substrate (5).

2. The cover plate with a coating layer according to claim 1, characterized in that, The first coating (1), the second coating (2), the third coating (3) and the fourth coating (4) are combined to form a stacked structure.

3. The cover plate with a coating layer according to claim 1, characterized in that, The lower surface of the substrate (5) has a border area (8) and a display area (9), and the photosensitive ink layer (6) and the alloy plating layer (7) are matched and disposed in the border area (8).

4. The cover plate with a coating layer according to claim 2 or 3, characterized in that, The lower surface of the substrate (5) is provided with a protective portion and is configured to protect the photosensitive ink layer (6) and the alloy plating layer (7).

5. The cover plate with a coating layer according to claim 4, characterized in that, The protective part includes a groove (10) disposed on the lower surface of the substrate (5), the groove (10) being matched with the photosensitive ink layer (6) and the alloy plating layer (7); The groove (10) is a structure that protrudes downward toward the substrate (5) or is recessed into the substrate (5) and has a U-shaped cross-section.

6. The cover plate with a coating layer according to claim 5, characterized in that, The depth of the groove (10) is at least the same as the thickness of the photosensitive ink layer (6).

7. The cover plate with a coating layer according to claim 4, characterized in that, The lower surface of the substrate (5) is provided with a positioning groove (11), which is arranged in a ring shape along the lower edge of the substrate (5); The protective part is positioned in the positioning groove (11) and wraps the photosensitive ink layer (6) and the alloy plating layer (7).

8. The cover plate with a coating layer according to claim 7, characterized in that, The protective part includes a first protective part (12), a second protective part (13) and a third protective part (14) connected in sequence. The first protective part (12) is positioned in the positioning groove (11); The second protective part (13) is integrally connected between the first protective part (12) and the third protective part (14), and the third protective part (14) is positioned inside the photosensitive ink layer (6) and the alloy plating layer (7); The first protective part (12), the second protective part (13) and the third protective part (14) are combined to form a structure that encapsulates the photosensitive ink layer (6) and the alloy plating layer (7).

9. The cover plate with a coating layer according to claim 8, characterized in that, The lower surface of the substrate (5) is provided with a receiving groove (15) for accommodating the third protective part (14).

10. The cover plate with a coating layer according to claim 9, characterized in that, The thickness of the first protective part (12) is the same as that of the positioning groove (11).

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