Anti-ultraviolet and anti-scraping glass cover plate

Abstract

The utility model discloses an anti-ultraviolet and anti-scraping glass cover plate. The anti-ultraviolet and anti-scraping glass cover plate comprises a glass substrate layer, a titanium dioxide layer and a lanthanum oxide layer, the titanium dioxide layer and the lanthanum oxide layer are sequentially arranged on the surface of the glass substrate layer from bottom to top in the thickness direction of the glass substrate layer; wherein the lanthanum oxide layer is used for improving the anti-ultraviolet performance of the glass cover plate, and the lanthanum oxide layer is used for improving the anti-scraping performance of the glass cover plate. According to the glass cover plate, the defects of the prior art in the aspects of ultraviolet resistance and scratch resistance can be overcome.

Description

Technical Field

[0001] This utility model relates to the field of display technology, and in particular to a glass cover that is resistant to ultraviolet radiation and scratches. Background Technology

[0002] With the continuous advancement of technology, glass covers are increasingly widely used in fields such as electronic displays, solar cells, and optical instruments. For example, in mobile phones, current touchscreen phones generally have a glass cover attached to the screen to protect it from scratches that could affect the display.

[0003] A representative example is the patent document with application number CN202020330888.6, which discloses a mobile phone glass cover. It uses a positioning rod to facilitate the positioning between the mobile phone glass cover body and the mobile phone screen, making the installation process quick. The structural frame and side protective shell set on the side of the mobile phone glass cover body not only increase the protection range of the mobile phone surface, but also prevent dust and debris from entering the space between the mobile phone screen and the mobile phone glass cover body from the edge of the mobile phone glass cover body.

[0004] While the technical solutions provided in the aforementioned patent documents have solved the installation problem between the glass cover and the mobile phone screen, they still have limitations for glass covers used in actual applications. For example,

[0005] The current glass cover is made of ordinary aluminosilicate glass, which has limitations in terms of UV resistance and scratch resistance, and cannot meet the needs of high-end applications.

[0006] Therefore, how to overcome the shortcomings of the existing technology mentioned above has become the subject of this utility model. Utility Model Content

[0007] To address the aforementioned technical problems, this utility model provides a glass cover plate to overcome the shortcomings of existing technologies in terms of UV resistance and scratch resistance.

[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0009] A UV-resistant and scratch-resistant glass cover, comprising a glass substrate layer, a titanium dioxide layer, and a lanthanum oxide layer;

[0010] On the surface of the glass substrate, along the thickness direction of the glass substrate, the titanium dioxide layer and the lanthanum oxide layer are sequentially disposed from bottom to top;

[0011] The lanthanum oxide layer is used to improve the UV resistance of the glass cover and to improve its scratch resistance.

[0012] Furthermore, both the titanium dioxide layer and the lanthanum oxide layer are sequentially deposited on the surface of the glass substrate by a coating process.

[0013] Furthermore, the thickness of the titanium dioxide layer is greater than the thickness of the lanthanum oxide layer.

[0014] Furthermore, the thickness of the titanium dioxide layer is 100-200 nm.

[0015] Furthermore, the thickness of the lanthanum oxide layer is 50-100 nm.

[0016] Furthermore, the edge of the lanthanum oxide layer is provided with a side covering portion that covers the side surface of the glass substrate layer and the titanium dioxide layer.

[0017] Furthermore, the lower end of the side covering portion is flush with the lower surface of the glass substrate layer, and the upper end of the side covering portion is flush with the upper surface of the lanthanum oxide layer.

[0018] Furthermore, the side covering portion is disposed around the lanthanum oxide layer.

[0019] Furthermore, the glass cover also includes an aluminum oxide layer, which is disposed between the glass substrate layer and the titanium dioxide layer.

[0020] Furthermore, the thickness of the alumina layer is 50-100 nm.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] In this invention, a titanium dioxide layer and a lanthanum oxide layer are sequentially disposed on the surface of the glass substrate to provide the glass cover with higher UV resistance and scratch resistance. Specifically, the titanium dioxide layer, as a wide bandgap semiconductor material layer, can absorb light energy and excite electrons under ultraviolet irradiation, thereby effectively blocking and scattering ultraviolet radiation, thus improving the UV resistance of the glass cover, especially in the UVA (320-400 nm) and UVB (280-320 nm) bands, which can protect the internal components of electronic devices and reduce damage caused by long-term ultraviolet irradiation. In addition, as a high refractive index film layer, the titanium dioxide layer can also improve the optical transparency of the glass cover, making it more transparent. The lanthanum oxide layer, as a rare earth metal oxide, has high hardness, which can improve the scratch resistance of the glass cover. At the same time, the lanthanum oxide layer can enhance the heat resistance and chemical resistance of the glass cover, increase the coefficient of thermal expansion of the glass cover, and reduce the deformation and cracking of the glass cover when the temperature changes. Also as a high refractive index film layer, the lanthanum oxide layer can also improve the optical transparency of the glass cover, making it more transparent. Attached Figure Description

[0023] Figure 1 A schematic diagram of the stacked structure of the glass cover plate provided by this utility model.

[0024] Figure 2 A schematic diagram of the stacking structure of another glass cover plate provided by this utility model. Detailed Implementation

[0025] The present invention will now be described in detail with reference to the accompanying drawings and embodiments, examples of which are shown in the drawings. Throughout the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0026] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," "fixing," and "setting," 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 or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] Example 1

[0030] A glass cover with good UV resistance and scratch resistance.

[0031] Please refer to Figure 1 The glass cover plate includes a glass substrate layer 1, a titanium dioxide layer 2, and a lanthanum oxide layer 3;

[0032] On the surface of the glass substrate 1, along the thickness direction of the glass substrate 1, the titanium dioxide layer 2 and the lanthanum oxide layer 3 are sequentially arranged from bottom to top;

[0033] The lanthanum oxide layer 3 is used to improve the UV resistance of the glass cover and the scratch resistance of the glass cover.

[0034] In this invention, a titanium dioxide layer 2 and a lanthanum oxide layer 3 are sequentially disposed on the surface of the glass substrate layer 1 to provide the glass cover with higher UV resistance and scratch resistance. Specifically, the titanium dioxide layer 2, as a wide bandgap semiconductor material layer, can absorb light energy and excite electrons under ultraviolet irradiation, thereby effectively blocking and scattering ultraviolet radiation, thus improving the UV resistance of the glass cover, especially in the UVA (320-400 nm) and UVB (280-320 nm) bands, which can protect the internal components of electronic devices and reduce damage caused by long-term ultraviolet irradiation. In addition, as a high refractive index film layer, the titanium dioxide layer 2 can also improve the optical transparency of the glass cover, making it more transparent. The lanthanum oxide layer 3, as a rare earth metal oxide, has high hardness and can improve the scratch resistance of the glass cover. At the same time, the lanthanum oxide layer 3 can enhance the heat resistance and chemical resistance of the glass cover, increase the coefficient of thermal expansion of the glass cover, and reduce the deformation and cracking of the glass cover when the temperature changes. Also as a high refractive index film layer, the lanthanum oxide layer 3 can also improve the optical transparency of the glass cover, making it more transparent.

[0035] In some examples, the titanium dioxide layer 2 and the lanthanum oxide layer 3 are both deposited sequentially on the surface of the glass substrate layer 1 by means of magnetron sputtering, vacuum evaporation or vapor deposition.

[0036] In some examples, the thickness of the titanium dioxide layer 2 is greater than the thickness of the lanthanum oxide layer 3.

[0037] Preferably, the thickness of the titanium dioxide layer 2 is 100-200 nm. Within this thickness range, the titanium dioxide layer 2 can effectively absorb and scatter ultraviolet rays, providing excellent UV protection for the glass cover, while ensuring high light transmittance. This high light transmittance allows the glass cover to clearly display images and information, while reducing glare and reflection, and improving visual comfort. Furthermore, within this thickness range, the titanium dioxide layer 2 also exhibits a certain degree of high hardness, thus, in conjunction with the lanthanum oxide layer 3, further improving the scratch resistance of the glass cover.

[0038] Preferably, the thickness of the lanthanum oxide layer 3 is 50-100 nm. Within this thickness range, the lanthanum oxide layer 3 can significantly improve the hardness of the glass cover, making it more durable, thereby reducing scratches and wear, protecting the glass cover from damage caused by daily use and friction; and maintaining stable performance under various environmental conditions, not easily corroded by chemicals such as acids and alkalis, and maintaining structural and performance stability at high temperatures, ensuring the normal use of the glass cover under high-temperature conditions.

[0039] The edge of the lanthanum oxide layer 3 is provided with a side covering portion 31 that covers the sides of the glass substrate layer 1 and the titanium dioxide layer 2, so that the lanthanum oxide layer 3 can further protect the sides of the glass substrate layer 1 and the titanium dioxide layer 2.

[0040] Preferably, the lower end of the side covering portion 31 is flush with the lower surface of the glass substrate layer 1, and the upper end of the side covering portion 31 is flush with the upper surface of the lanthanum oxide layer 3, and is disposed around the lanthanum oxide layer 3, so as to cover the sides of the glass substrate layer 1 and the titanium dioxide layer 2 as much as possible.

[0041] The thickness of the side covering portion 31 is 80-100 nm.

[0042] In this embodiment, the glass substrate 1 is aluminosilicate glass with a thickness between 1 and 3 mm.

[0043] Example 2

[0044] As an optimization of Example 1, please refer to Figure 2 The glass cover plate also includes an aluminum oxide layer 4, which is disposed between the glass substrate layer 1 and the titanium dioxide layer 2.

[0045] As an intermediate layer, the alumina layer 4 enhances the adhesion between the glass substrate 1 and the titanium dioxide layer 2. Regarding chemical bonding, the alumina layer 4 forms chemical bonds with both the glass substrate 1 and the titanium dioxide layer 2. Oxygen atoms in the alumina layer 4 can form chemical bonds with silicon atoms or other metal atoms in the glass substrate 1, and aluminum atoms in the alumina layer 4 can also form chemical bonds with oxygen atoms in the titanium dioxide layer 2. This chemical bonding significantly improves the adhesion of the titanium dioxide layer 2 to the glass substrate 1. Regarding physical adsorption, the alumina layer 4 has a rich microporous structure and a large specific surface area, allowing it to adsorb onto the surfaces of the glass substrate 1 and the titanium dioxide layer 2, forming a close contact and further enhancing the adhesion between them.

[0046] Preferably, the thickness of the alumina layer 4 is 50-100 nm. Within this thickness range, the alumina layer 4 can provide sufficient bonding and adsorption depth with the glass substrate 1 and the titanium dioxide layer 2 respectively, and has sufficient hardness to provide a certain degree of protection for the glass substrate 1, thereby improving the hardness, wear resistance and chemical stability of the glass substrate 1.

[0047] 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.

[0048] 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; rather, 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 UV-resistant and scratch-resistant glass cover, characterized in that, It includes a glass substrate, a titanium dioxide layer, and a lanthanum oxide layer; On the surface of the glass substrate, along the thickness direction of the glass substrate, the titanium dioxide layer and the lanthanum oxide layer are sequentially disposed from bottom to top; The lanthanum oxide layer is used to improve the UV resistance of the glass cover and to improve its scratch resistance.

2. The glass cover plate according to claim 1, characterized in that, Both the titanium dioxide layer and the lanthanum oxide layer are sequentially deposited on the surface of the glass substrate by a coating process.

3. The glass cover plate according to claim 1, characterized in that, The thickness of the titanium dioxide layer is greater than the thickness of the lanthanum oxide layer.

4. The glass cover plate according to claim 1 or 3, characterized in that, The thickness of the titanium dioxide layer is 100-200 nm.

5. The glass cover plate according to claim 1 or 3, characterized in that, The thickness of the lanthanum oxide layer is 50-100 nm.

6. The glass cover plate according to claim 1, characterized in that, The edge of the lanthanum oxide layer is provided with a side covering portion that covers the side surface of the glass substrate layer and the titanium dioxide layer.

7. The glass cover plate according to claim 6, characterized in that, The lower end of the side covering portion is flush with the lower surface of the glass substrate layer, and the upper end of the side covering portion is flush with the upper surface of the lanthanum oxide layer.

8. The glass cover plate according to claim 6, characterized in that, The side covering portion is disposed around the lanthanum oxide layer.

9. The glass cover plate according to claim 1, characterized in that, The glass cover also includes an aluminum oxide layer, which is disposed between the glass substrate layer and the titanium dioxide layer.

10. The glass cover plate according to claim 9, characterized in that, The thickness of the alumina layer is 50-100 nm.

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