Glass structural member and electronic device

Abstract

Provided are a glass structural member (100) and an electronic device (1000). The glass structural member (100) comprises a glass substrate (10) and a first optical scratch-resistant stack (11), a second optical scratch-resistant stack (12), and a first ultra-hard layer (13) sequentially stacked on one side of the glass substrate. The first optical scratch-resistant laminate layer (11) is formed by alternately stacking two material layers having different refractive indexes, the second optical scratch-resistant stack (12) is formed by stacking three materials having different refractive indexes, and the first ultra-hard layer (13) is a diamond-like carbon doped with at least one element of silicon, aluminum, titanium, zirconium, molybdenum and nitrogen. The glass structural member (100) has a good scratch resistance performance and a good optical performance that are not significantly changed compared to the glass substrate (10), and can better meet the long-term use requirement for the housing of an electronic device.

Description

Glass structural components and electronic equipment

[0001] This application claims priority to Chinese patent application filed on November 6, 2024, with application number 202411582258.7 and entitled "Glass Structure and Electronic Device", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of glass technology, specifically to a glass structural component and an electronic device. Background Technology

[0003] Glass is a common material for display screen covers in electronic devices such as mobile phones and tablets. To reduce scratches on the display screen, a super-hard film (such as a diamond-like carbon film) is usually coated on the surface of the glass substrate. To avoid affecting the optical transmittance of the glass substrate, the thickness of the diamond-like carbon film is usually made relatively thin, but it is difficult to provide good scratch resistance against high-hardness sand particles. Therefore, it is necessary to provide a glass structural component that can balance good scratch resistance and optical performance. Summary of the Invention

[0004] Therefore, embodiments of this application provide a glass structural component and an electronic device. By controlling a specific coating on the surface of the glass structural component, the glass structural component can be guaranteed to have good scratch resistance and optical performance.

[0005] Specifically, the first aspect of this application provides a glass structural member, including:

[0006] Glass substrate,

[0007] A first optical scratch-resistant layer is disposed on one side of the glass substrate; wherein the first optical scratch-resistant layer includes at least one first refractive index material layer and at least one second refractive index material layer alternately stacked, and the refractive index of the first refractive index material layer is greater than that of the second refractive index material layer.

[0008] The second optical scratch-resistant layer is disposed on the side of the first optical scratch-resistant layer away from the glass substrate; wherein the second optical scratch-resistant layer includes at least one third refractive index material layer, at least one fourth refractive index material layer and at least one fifth refractive index material layer stacked together, and the refractive indices of the third refractive index material layer, the fourth refractive index material layer and the fifth refractive index material layer decrease sequentially;

[0009] A first superhard layer is disposed on the side of the second optical scratch-resistant stack opposite to the first optical scratch-resistant stack; wherein the first superhard layer is diamond-like carbon containing doped elements, and the doped elements include at least one of silicon, aluminum, titanium, zirconium, molybdenum, tungsten, and nitrogen.

[0010] The aforementioned glass structural component uses diamond-like carbon (DLC) with specific doping elements as its surface superhard layer. Compared to using undoped DLC, this glass structural component has a higher surface hardness, improving its scratch resistance. Simultaneously, the doping elements can reduce the decrease in optical transmittance caused by undoped DLC. Furthermore, a first optical scratch-resistant layer, composed of two overlapping films with different refractive indices, and a second optical scratch-resistant layer, composed of three overlapping films with different refractive indices, are disposed between the glass substrate and this first superhard layer. Both of these optical layers can be relatively thick and essentially optically transparent, and both possess good scratch resistance, with the second optical scratch-resistant layer exhibiting superior scratch resistance. Their presence effectively enhances the durable scratch resistance of the glass structural component with the first superhard layer against high-hardness objects. Therefore, this glass structural component can balance high hardness, good scratch resistance, and optical properties (such as high transmittance and low chromatic aberration).

[0011] In this embodiment, the refractive index of the first refractive index material layer is greater than or equal to 1.8, and the refractive index of the second refractive index material layer is less than or equal to 1.60. By alternately stacking two material layers with refractive indices in these two ranges, a first optically scratch-resistant laminate with good optical transmittance and scratch resistance can be obtained, and its optical transmittance is even better.

[0012] In this embodiment, the refractive index of the third refractive index material layer is greater than 1.80, the refractive index of the fourth refractive index material layer is 1.60-1.80, and the refractive index of the fifth refractive index material layer is less than 1.60. By alternately stacking three different refractive index material layers in these three ranges, a second optically scratch-resistant laminate with good optical transmittance and scratch resistance can be obtained, and its scratch resistance is even better.

[0013] In this embodiment, the first refractive index material layer includes one of a silicon nitride layer, an aluminum nitride layer, an aluminum silicon nitride layer, a silicon oxynitride layer, an aluminum oxynitride layer, and an aluminum silicon oxynitride layer; the second refractive index material layer includes one of a silicon oxide layer, an aluminum oxide layer, an aluminum silicon oxide layer, a silicon oxynitride layer, an aluminum oxynitride layer, and an aluminum silicon oxynitride layer. The refractive index can be adjusted within different ranges by controlling the chemical composition of silicon oxynitride, aluminum oxynitride, and aluminum silicon oxynitride.

[0014] In this embodiment, the third refractive index material layer includes one of a silicon nitride layer, an aluminum nitride layer, an aluminum silicon nitride layer, and a titanium oxide layer; the fourth refractive index material layer includes one of a silicon oxynitride layer, an aluminum oxynitride layer, and an aluminum silicon oxynitride layer; and the fifth refractive index material layer includes one of a silicon oxide layer, an aluminum oxide layer, and an aluminum silicon oxide layer. The materials selected for the third refractive index material layer have high refractive indices and good wear resistance. Adjusting the chemical composition of silicon oxynitride, aluminum oxynitride, and aluminum silicon oxynitride can achieve a refractive index between 1.60 and 1.80.

[0015] In some embodiments of this application, the surface layer of the first optical scratch-resistant layer adjacent to the second optical scratch-resistant layer is the first refractive index material layer, and the first refractive index material layer is in contact with the fourth refractive index material layer or the fifth refractive index material layer; or, the surface layer of the first optical scratch-resistant layer adjacent to the second optical scratch-resistant layer is the second refractive index material layer, and the second refractive index material layer is in contact with the third refractive index material layer or the fourth refractive index material layer. This is beneficial for the overall stacked structure of the first and second optical scratch-resistant layers to have high optical transmittance.

[0016] In this embodiment, the sum of the thicknesses of the first optical scratch-resistant layer and the second optical scratch-resistant layer is in the range of 500nm-3000nm. In this case, the laminated structure formed by the first and second optical scratch-resistant layers can effectively improve the durable scratch resistance of the overall glass structure, while they can be firmly bonded to the glass substrate.

[0017] In this embodiment, the thickness of the first superhard layer is in the range of 1nm-100nm. A first superhard layer with a thickness of less than 100nm can improve the surface hardness of one side of the glass structure without affecting its optical transmittance and appearance.

[0018] In this embodiment of the application, the doping concentration of the doping element in the first superhard layer is less than or equal to 20 wt%. This ensures that the hardness and optical transmittance of the doped diamond-like carbon are improved without damaging the basic structure of the diamond-like carbon.

[0019] In some embodiments of this application, a second superhard layer is further provided on the side of the first superhard layer opposite to the second optically scratch-resistant laminate; the second superhard layer is made of a different material than the first superhard layer. The presence of the second superhard layer helps to ensure that the first superhard layer maintains its high hardness for a longer period of time.

[0020] In this embodiment of the application, the second superhard layer includes silicon nitride, silicon carbide, silicon carbonitride, and CN. x1One of them; wherein x1 is between (0,4]. Setting a second superhard layer of such material between the first superhard layer and the second optical scratch-resistant laminate can help improve the durability of the high hardness of the first superhard layer, and with the cooperation of the two, improve the surface of the glass structure's durable scratch resistance to high-hardness items.

[0021] In this embodiment, the thickness of the second superhard layer is in the range of 1nm-50nm. The appropriately thin second superhard layer helps to improve the high hardness and durability of the first superhard layer, while also being a film layer with high optical transmittance, thus not affecting the overall appearance of the glass structure 100.

[0022] In some embodiments of this application, the glass structural component further includes an anti-fingerprint layer, which is located on the side of the second superhard layer opposite to the first superhard layer. The anti-fingerprint layer is mainly used to reduce the probability of users' fingers leaving dirt on the glass structural component, ensuring a cleaner appearance of the glass structural component.

[0023] In some other embodiments of this application, the glass structure further includes an anti-fingerprint layer located on the side of the first ultra-hard layer opposite to the second optically scratch-resistant layer. The anti-fingerprint layer primarily reduces the probability of users' fingers leaving dirt on the glass structure, ensuring a cleaner appearance.

[0024] In this embodiment, the Mohs hardness of the surface of the glass structural component away from the glass substrate is greater than or equal to 7. The high Mohs hardness of the surface of the glass structural component away from the glass substrate results in better scratch resistance.

[0025] In this embodiment, the nanoindentation hardness of the glass structural component on the side away from the glass substrate at an indentation depth greater than 150 nm is above 14 GPa. This high nanoindentation hardness reflects the good resistance of the glass structural component to deep scratches or persistent scratches from high-hardness objects.

[0026] In this embodiment, the average transmittance of the glass structure in the visible light region is above 88%. After providing a film structure including the aforementioned first optical scratch-resistant layer, second optical scratch-resistant layer and first superhard layer on one side of the glass substrate, the resulting glass structure can still have high visible light transmittance, which is particularly suitable for display screen covers, camera protective covers and the like, where high transparency is required.

[0027] In this embodiment, the color coordinate offset value ΔE of the glass structural component relative to the glass substrate is less than 1.5. This indicates that the appearance hue of the glass structural component does not change significantly compared to the untreated glass substrate.

[0028] A second aspect of this application provides an electronic device including a housing assembled on the outside of the electronic device and a circuit board located inside the housing, the housing including the glass structure described in the first aspect of this application.

[0029] In some embodiments of this application, the housing includes a display screen cover assembled on the front side of the electronic device; wherein the display screen cover uses the glass structural member. In other embodiments of this application, the housing includes a rear cover assembled on the rear side of the electronic device; wherein the rear cover uses the glass structural member. In still other embodiments of this application, the electronic device further includes a camera assembly located inside the housing, the housing including a camera protective cover that covers the camera assembly, and the camera protective cover using the glass structural member.

[0030] One or more of the outer casings of electronic devices, such as the display screen cover, back cover, and camera protective cover, can utilize the aforementioned glass structural components. Because these glass structural components have good wear resistance and scratch resistance, and their optical properties are not significantly different from those of the glass substrate, the casings of electronic devices using them are less prone to scratches and wear during use, have a long service life, and are highly competitive in the market. These electronic devices may include, but are not limited to, mobile phones, tablets, laptops, and wearable devices. Attached Figure Description

[0031] Figure 1 is a schematic diagram of the front structure of the electronic device provided in an embodiment of this application.

[0032] Figure 2 is a schematic diagram of the rear structure of the electronic device provided in an embodiment of this application.

[0033] Figure 3a is a schematic diagram of a glass structural component provided in an embodiment of this application.

[0034] Figure 3b is a schematic diagram of another structure of the glass structural component provided in the embodiment of this application.

[0035] Figure 4 is a schematic diagram of another structure of the glass structure provided in some embodiments of this application.

[0036] Figure 5 is a schematic diagram of another structure of the glass structure provided in some other embodiments of this application. Detailed Implementation

[0037] The embodiments of this application will now be described in conjunction with the accompanying drawings.

[0038] Referring to Figures 1 and 2, Figure 1 is a schematic diagram of the front structure of the electronic device provided in an embodiment of this application. Figure 2 is a schematic diagram of the rear structure of the electronic device provided in an embodiment of this application. The electronic device 1000 may include, but is not limited to, a cellphone, a notebook computer, a tablet computer, a personal digital assistant, a wearable device (such as a smart bracelet, watch, etc.), a virtual reality (VR) device, or a mobile device. In this embodiment, a cellphone is used as an example for illustration.

[0039] Electronic device 1000 includes a housing assembled on the outside of the electronic device and a circuit board located inside the housing. The housing includes a display cover 101 assembled on the front of the electronic device 1000 and a rear cover 102 assembled on the rear of the electronic device 1000. The display cover 101 covers the display screen to protect it. The display cover 101 and / or the rear cover 102 may be made of glass. Specifically, the display cover 101 may be entirely or partially made of glass; the rear cover 102 may be entirely or partially made of glass. The rear cover 102 may cover only the rear side of the electronic device 1000 (and the side facing away from the display screen), or it may cover both the rear side and the side bezels of the electronic device 1000. Optionally, the rear cover 102 may cover all or part of the side bezels of the electronic device.

[0040] In some embodiments of this application, as shown in FIG2, the electronic device 1000 further includes a camera assembly 2 located inside a housing. The housing may include a camera protective cover 103, which covers the camera assembly 2 and protects it. The camera protective cover 103 may be made of glass. Similarly, the camera protective cover 103 may be partially or entirely made of glass. The location of the camera protective cover 103 depends on the location of the camera assembly 2; it may be located at the front or rear of the electronic device 1000. FIG2 illustrates this with the camera assembly 2 located at the rear of the electronic device 1000. In some embodiments of this application, the camera protective cover 103 may be a separate structure from the display cover 101 or the rear cover 102. In other embodiments of this application, the camera protective cover 103 may be an integral structure with the display cover 101 or the rear cover 102.

[0041] In this embodiment of the application, the display screen cover 101, the back cover 102, and the camera protective cover 103 in the electronic device 1000 may be made of glass, any one of them may be made of glass, any two of them may be made of glass, or all three may be made of glass.

[0042] Currently, to improve the scratch resistance of various glass components (such as display screen cover 101 and camera protective cover 103) in electronic devices 1000, a diamond-like carbon (DLC) superhard film is typically deposited on one side of the glass substrate. Taking the glass covering the display screen 101 as an example, a DLC film is usually deposited on the side facing away from the display screen. This DLC film is typically thin (less than 100 nm, with 3-50 nm being common). This is because it is difficult to achieve thick deposition of DLC, and making the DLC film thicker would not only significantly increase manufacturing costs but also greatly affect the light transmittance of the glass substrate, impacting the appearance of the electronic device. Therefore, this application provides a glass structural component that combines good wear resistance, scratch resistance, and optical transmittance to better meet the usage requirements of electronic devices 1000.

[0043] The glass structural components provided in the embodiments of this application are described below.

[0044] Please refer to Figures 3a and 3b, which are schematic diagrams of two exemplary structures of the glass structural component provided in the embodiments of this application. As shown in Figures 3a and 3b, the glass structural component 100 includes a glass substrate 10 and a first optical scratch-resistant layer 11, a second optical scratch-resistant layer 12, and a first superhard layer 13 sequentially stacked on one side of the glass substrate 10. Specifically, the first optical scratch-resistant layer 11 is disposed on one side of the glass substrate 10, the second optical scratch-resistant layer 12 is disposed on the side of the first optical scratch-resistant layer 11 facing away from the glass substrate 10, and the first superhard layer 13 is disposed on the side of the second optical scratch-resistant layer 12 facing away from the first optical scratch-resistant layer 11.

[0045] The first optical scratch-resistant layer 11 includes at least one first refractive index material layer 111 and at least one second refractive index material layer 112, which are alternately stacked. The refractive indices of the first refractive index material layer 111 and the second refractive index material layer 112 are different. For example, the refractive index of the first refractive index material layer 111 is greater than that of the second refractive index material layer 112.

[0046] The second optical scratch-resistant layer 12 includes at least one third refractive index material layer 121, at least one fourth refractive index material layer 122, and at least one fifth refractive index material layer 123 stacked together. The refractive indices of these three material layers are different. For example, the refractive indices of the third refractive index material layer 121, the fourth refractive index material layer 122, and the fifth refractive index material layer 123 decrease sequentially.

[0047] The first superhard layer 13 is diamond-like carbon containing doped elements, wherein the doped elements include at least one of silicon (Si), aluminum (Al), titanium (Ti), zirconium (Zr), molybdenum (Mo), tungsten (W), and nitrogen (N).

[0048] This application sequentially stacks a first optical scratch-resistant layer 11 formed by two layers of materials with different refractive indices, a second optical scratch-resistant layer 12 formed by three layers of materials with different refractive indices, and a first superhard layer 13 composed of diamond-like carbon containing specific doping elements on a glass substrate 10. Firstly, the diamond-like carbon contains at least one doping element among Si, Al, Ti, Zr, Mo, and N, which can modify it by doping, helping to improve its hardness, enhance the wear resistance of the glass structural component 100, and improve its resistance to scratches from everyday items (such as keys). At the same time, compared with the undoped diamond-like carbon layer, the diamond-like carbon layer doped with the aforementioned elements has higher optical transmittance at the same thickness, that is, the aforementioned doping elements reduce the damage to optical performance. Secondly, the first optical scratch-resistant layer 11 and the second optical scratch-resistant layer 12 are disposed between the glass substrate 10 and the first superhard layer 13. These two optical layers can be made relatively thick while maintaining good optical transmittance, and both possess good wear and scratch resistance. In conjunction with the first superhard layer 13, they can improve the nano-indentation hardness of the glass structural component 100, enhancing its durable scratch resistance to high-hardness items (such as sand / dust with a Mohs hardness of 7 or higher). Even if the thickness of the first superhard layer 13 becomes thinner after prolonged use, the presence of the first optical scratch-resistant layer 11 and the second optical scratch-resistant layer 12 still ensures good scratch resistance for the glass structural component 100. Therefore, the glass structural component 100 can have high hardness, good scratch resistance, and excellent scratch resistance, while its light transmittance, appearance color, and other optical properties do not change significantly compared to the glass substrate 10.

[0049] It should be noted that Figures 3a and 3b are exemplary illustrations of this application and do not represent the actual size of the product. Furthermore, the thickness of each film layer and the proportional relationship between the thicknesses of the film layers in the figures are not intended to limit the actual product of this application; the other figures in this application are interpreted in the same way. In addition, Figures 3a and 3b only illustrate one film layer arrangement of the first optical scratch-resistant stack 11 and one film layer arrangement of the second optical scratch-resistant stack 12, respectively, but this does not mean that the actual film layer arrangements of the first optical scratch-resistant stack 11 and the second optical scratch-resistant stack 12 are limited to those shown in Figures 3a and 3b of this application.

[0050] Specifically, if the first refractive index material layer 111 is designated as layer A and the second refractive index material layer 112 as layer C, then the total number of layers A and the total number of layers B in the first optical scratch-resistant stack 11 can be equal or unequal. For example, in the direction from the glass substrate 10 to the first optical scratch-resistant stack 11 (i.e., the Z direction indicated by the arrows in Figures 3a and 3b), the layer arrangement of the first optical scratch-resistant stack 11 can be (AC). n (As shown in Figure 3a), or (AC) n -A, or (CA) n (As shown in Figure 3b), or (CA) n -C; where n is an integer greater than or equal to 1. The thickness of each A layer can be the same or different. The thickness of each C layer can be the same or different. "-" indicates a stacking relationship, such as (AC). n The layers stacked sequentially along the Z direction are layer A, layer C, ..., layer A and layer C; the total number of cycles of layer A stacking layer C is n. By alternating layers of two materials with different refractive indices, a first optically scratch-resistant layer 11 with good optical transmittance and scratch resistance can be obtained, and its optical transmittance is even better.

[0051] In the second optical scratch-resistant stack 12, the arrangement of the third refractive index material layer 121, the fourth refractive index material layer 122, and the fifth refractive index material layer 123 is not limited, as long as the two contacting layers are material layers with different refractive indices. If the third refractive index material layer 121 is designated as layer D, the fourth refractive index material layer 122 as layer E, and the fifth refractive index material layer 123 as layer F, then adjacent layer D is separated by either layer E or layer F, adjacent layer E is separated by either layer D or layer F, and adjacent layer F is separated by either layer D or layer E. For example, along the Z-direction, the layer arrangement of the second optical scratch-resistant stack 12 can include, but is not limited to, (DEF). n (As shown in Figure 3a), (DEF) n -A、(DEF) n -DE、(FED) n (FED) n-F、(FED) n -FE、(EFD) n -FE, or (DE) m -(DEF) n And so on. m and n are integers greater than or equal to 1. Similar to the previous paragraph, "-" represents the stacking relationship along the Z direction. By stacking three materials with different refractive indices, a second optical scratch-resistant layer 12 with good optical transmittance and good scratch resistance can be obtained, and its scratch resistance is even better.

[0052] In this application, the laminated structure formed by the first optical scratch-resistant layer 11 and the second optical scratch-resistant layer 12 has a visible light transmittance greater than or equal to 90%. This laminated structure has high optical transparency (e.g., an average visible light transmittance of over 90%), and its placement between the glass substrate 10 and the first superhard layer 13 does not affect the visible light transmittance of the overall glass structure 100. Specifically, the first optical scratch-resistant layer 11 and the second optical scratch-resistant layer 12 are both optically transparent layers.

[0053] In this embodiment of the application, in the first optical scratch-resistant laminate 11, the refractive index of the first refractive index material layer 111 (the aforementioned layer A) is greater than or equal to 1.80, and the refractive index of the second refractive index material layer 112 (the aforementioned layer C) is less than or equal to 1.60. By alternately stacking two different refractive index material layers with refractive indices in these ranges, a first optical scratch-resistant laminate 11 with good optical transmittance and good scratch resistance can be obtained, and its optical transmittance is even better. In some embodiments of this application, the refractive index of layer A is greater than or equal to 1.80, and the refractive index of layer C is less than 1.60; or, the refractive index of layer A is greater than 1.80, and the refractive index of layer C is less than or equal to 1.60; or the refractive index of layer A is greater than 1.80, and the refractive index of layer C is less than or equal to 1.60. In some embodiments, the refractive index of layer A is greater than or equal to 1.85, and the refractive index of layer C is less than or equal to 1.55.

[0054] The first refractive index material layer 111 may include a silicon nitride layer (i.e., a Si3N4 layer), an aluminum nitride layer (i.e., an AlN layer), and a silicon aluminum nitride layer (Si3N4). w Al z N x ), silicon oxynitride layer (Si) w O y N x ), aluminum oxide layer (Al) z O y N x ), silicon-aluminum oxide layer (Si) w Al z O y N xOne of the following. The second refractive index material layer 112 may include a silicon oxide layer (such as a SiO2 layer), an aluminum oxide layer (i.e., an Al2O3 layer), or a silicon-aluminum oxide layer (SiO2). w Al z O y ), silicon oxynitride layer (Si) w O y N x ), aluminum oxide layer (Al) z O y N x ), silicon-aluminum oxide layer (Si) w Al z O y N x One of them.

[0055] It should be noted that the subscripts of each element in the above chemical formulas should ensure that the corresponding chemical formulas satisfy charge balance. Furthermore, there is no correlation between the 'x', 'y', 'z', and 'w' elements in the above chemical formulas. Identical letters (such as z and w) in different chemical formulas are not related; they are not distinguished for ease of description.

[0056] Although the material selection ranges for the first refractive index material layer 111 and the second refractive index material layer 112 both mention silicon oxynitride, aluminum oxynitride, and aluminum silicon oxynitride, the refractive indices of these two material layers are in different ranges. Even if they are both silicon oxynitride (using this example), the chemical formula of silicon oxynitride in the first refractive index material layer 111 is not the same as that in the second refractive index material layer 112.

[0057] In some embodiments of this application, the first refractive index material layer 111 is selected from a silicon nitride layer, an aluminum nitride layer, and an aluminum silicon nitride layer; the second refractive index material layer 112 is selected from a silicon oxide layer, an aluminum oxide layer, and an aluminum silicon oxide layer. In one embodiment, the first refractive index material layer 111 is an aluminum silicon nitride layer, and the second refractive index material layer 112 is an aluminum silicon oxide layer. In this case, while meeting the refractive index requirements described above, the interlayer bonding force between the first refractive index material layer 111 and the second refractive index material layer 112 is relatively high.

[0058] In this embodiment, the refractive index of the third refractive index material layer 121 (the aforementioned D layer) is greater than 1.80, the refractive index of the fourth refractive index material layer 122 (the aforementioned E layer) is 1.60-1.80 (i.e., greater than or equal to 1.60 to less than or equal to 1.80), and the refractive index of the fifth refractive index material layer 123 (the aforementioned F layer) is less than 1.60. By stacking three different refractive index material layers with refractive indices in these ranges, a second optically scratch-resistant laminate 12 with good optical transmittance and good scratch resistance can be obtained, and its scratch resistance is even better. In some embodiments of this application, the refractive index of the D layer is greater than or equal to 1.85, the refractive index of the F layer is less than or equal to 1.55, and the refractive index of the E layer is in the range of 1.60-1.80.

[0059] It should be noted that the refractive indices of layers A, C, D, E, and F in this application may have a reasonable margin of error due to the influence of the testing methods. Data within this reasonable margin of error should also be considered within the scope of protection of this application. Other parameter ranges mentioned below in this application should be interpreted similarly.

[0060] The third refractive index material layer 121 may include a silicon nitride layer (i.e., a Si3N4 layer), an aluminum nitride layer (i.e., an AlN layer), or a silicon aluminum nitride layer (Si3N4). w Al z N x One of the following is a titanium oxide layer (such as a TiO2 layer). These materials have high hardness and good scratch resistance. The fourth refractive index material layer 122 includes a silicon oxynitride layer (SiO2). w O y N x ), aluminum oxide layer (Al) z O y N x ), silicon-aluminum oxide layer (Si) w Al z O y N x One of the following. The fifth refractive index material layer 123 includes a silicon oxide layer (such as a SiO2 layer), an aluminum oxide layer (i.e., an Al2O3 layer), and a silicon-aluminum oxide layer (SiO2). w Al z O y One of them.

[0061] Similarly, although the material selection range for the fourth refractive index material layer 122 mentions the same silicon oxynitride, aluminum oxynitride, and aluminum silicon oxynitride as the first refractive index material layer 111 and the second refractive index material layer 112, the chemical formula of silicon oxynitride in these three layers is not the same, even though they are made of the same material (e.g., all of them are silicon oxynitride) because the refractive indices of these three layers are in different ranges.

[0062] In this application, layers A, C, D, E, and F can all be independently deposited using chemical vapor deposition (CVD) or physical vapor deposition (PVD). CVD includes, but is not limited to, hot-wire CVD or plasma-enhanced CVD. PVD includes, but is not limited to, magnetron sputtering, vacuum evaporation, and ion plating (e.g., arc ion plating, radio frequency ion plating).

[0063] For example, when forming a silicon oxynitride layer using magnetron sputtering, the target material can be a Si target, and an inert gas (such as argon), nitrogen (N2), and oxygen (O2) are introduced to deposit the silicon oxynitride layer. The resulting Si can be controlled by adjusting the flow rates of N2 and O2. w O y N x The molar ratio of N to O. When forming a silicon-aluminum nitride layer using magnetron sputtering, the targets used include Si and Al targets. Argon and N2 are introduced, and the silicon-aluminum nitride layer is deposited. The sputtering power and time of the Si and Al targets can be controlled to adjust the deposition process. w Al z N x The molar ratio of Si to Al. When forming a silicon-aluminum oxynitride layer using magnetron sputtering, the targets used include Si targets and Al targets. Argon, N2, and O2 are introduced to deposit the target coating.

[0064] In some embodiments of this application, when the surface layer of the first optical scratch-resistant layer 11 near the second optical scratch-resistant layer 12 is a second refractive index material layer 112 (as shown in FIG. 3a), the second refractive index material layer 112 is in contact with the third refractive index material layer 121 or the fourth refractive index material layer 122 in the second optical scratch-resistant layer 12. This facilitates the high optical transmittance of the stacked structure of the first optical scratch-resistant layer 11 and the second optical scratch-resistant layer 12. In this case, the film layer arrangement of the first optical scratch-resistant layer 11 along the Z direction can be (AC). n (As shown in Figure 3a), or (CA) n -C. Figure 3a shows a schematic diagram of the contact between the second refractive index material layer 112 and the third refractive index material layer 121.

[0065] In other embodiments of this application, when the surface layer of the first optical scratch-resistant layer 11 near the second optical scratch-resistant layer 12 is a first refractive index material layer 111 (as shown in FIG. 3b), the first refractive index material layer 111 is in contact with the fourth refractive index material layer 122 or the fifth refractive index material layer 123 in the second optical scratch-resistant layer 12. This is beneficial for the laminated structure of the first optical scratch-resistant layer 11 and the second optical scratch-resistant layer 12 to have higher optical transmittance. In this case, the film layer arrangement of the first optical scratch-resistant layer 11 along the Z direction can be (CA). n (As shown in Figure 3b), (AC) n -A. Figure 3b shows a schematic diagram of the contact between the first refractive index material layer 111 and the fourth refractive index material layer 122.

[0066] In this application, the first optical scratch-resistant stack 11 comprises a number of film layers greater than or equal to 2, and further greater than or equal to 3. When the number of film layers in the first optical scratch-resistant stack 11 is greater than or equal to 3, the number of layers in the first refractive index material layer 111 and / or the second refractive index material layer 112 is greater than or equal to 2. The second optical scratch-resistant stack 12 comprises a number of film layers greater than or equal to 3, and further greater than or equal to 4.

[0067] In this embodiment, the first optical scratch-resistant laminate 11 and the second optical scratch-resistant laminate 12 comprise a total number of film layers greater than or equal to 5 layers, and can further be in the range of 8-30 layers, for example, specifically 10, 12, 15, 20, 25, or 28 layers. This allows the laminated structure of the first optical scratch-resistant laminate 11 and the second optical scratch-resistant laminate 12 to possess good optical transmittance and scratch resistance through the stacking of a suitable number of material layers with different refractive indices, while ensuring a strong bond between them and the glass substrate 10.

[0068] In this application, the thickness of each of the aforementioned first refractive index material layers 111 (A layer), second refractive index material layer 112 (C layer), third refractive index material layer 121 (D layer), fourth refractive index material layer 122 (E layer), and fifth refractive index material layer 123 (F layer) is not specifically limited. In a common embodiment of this application, the thickness of each A layer, C layer, D layer, E layer, and F layer can independently range from 1 to 2500 nm, and more specifically from 5 nm to 2000 nm.

[0069] In this application, the thicknesses of the first optical scratch-resistant layer 11 and the second optical scratch-resistant layer 12 are both greater than the thickness of the first superhard layer 13. Placing them below the first superhard layer 13 helps the overall glass structure 100 to provide long-term resistance to scratches from high-hardness objects.

[0070] In a possible embodiment of this application, the sum of the thicknesses of the first optical scratch-resistant layer 11 and the second optical scratch-resistant layer 12 can be in the range of 500nm-3000nm. In this case, the laminated structure formed by the first optical scratch-resistant layer 11 and the second optical scratch-resistant layer 12 can be firmly bonded to the glass substrate 10 while also improving the overall durability of the glass structure 100 in terms of wear resistance and scratch resistance. For example, the sum of the thicknesses can specifically be 600nm, 800nm, 1000nm, 1200nm, 1500nm, 1800nm, 2000nm, 2200nm, or 2400nm, etc. In some embodiments, the sum of the thicknesses of the first optical scratch-resistant layer 11 and the second optical scratch-resistant layer 12 is 1000nm-2500nm.

[0071] In this application, the first superhard layer 13 contains diamond-like carbon (DLC) doped with one or more of the following: silicon (Si), aluminum (Al), titanium (Ti), zirconium (Zr), molybdenum (Mo), tungsten (W), and nitrogen (N). For example, the doping elements in the DLC may include N; or Si; or Al; or Ti; or Zr; or Mo; or W; or Si and Ti; or Ti and Al; or Mo and W; or Si and N, etc. DLC doped with these elements can achieve a Mohs hardness of 8 or higher and also exhibit good optical properties, while being relatively easy to prepare.

[0072] In some embodiments of this application, the doping elements in the first superhard layer 13 of the diamond-like carbon may further include hydrogen (H). The doping element H can also help increase the hardness of the diamond-like carbon.

[0073] In some embodiments of this application, the first superhard layer 13 is one of a Si-doped diamond-like carbon (DLC) layer, an Al-doped DLC layer, a Ti-doped DLC layer, a Zr-doped DLC layer, a Mo-doped DLC layer, a W-doped DLC layer, or a N-doped DLC layer. These doped DLC layers are easier to prepare and can better balance high hardness and good optical transmittance.

[0074] In a possible implementation of this application, the doping concentration of the dopant element in the first superhard layer 13 is less than or equal to 20 wt%. This ensures that the introduction of the dopant element does not disrupt the structural stability of the diamond-like carbon (DLC) while maintaining the high hardness and good optical transmittance of the doped DLC layer. It should be noted that the dopant concentration mentioned here specifically refers to the sum of the doping concentrations of all dopant elements in the first superhard layer 13. In this application, the doped DLC can be deposited using methods such as physical vapor deposition (e.g., magnetron sputtering) or chemical vapor deposition (e.g., plasma-enhanced chemical vapor deposition).

[0075] In this embodiment, the thickness of the first superhard layer 13 is in the range of 1nm-100nm. A thickness of less than 100nm for the first superhard layer 13 allows it to increase the surface hardness of one side of the glass structure 100 while maintaining high transparency, ensuring that the overall glass structure 100 has similar optical transmittance and appearance to the simple glass substrate 10. Specifically, the thickness of the first superhard layer 13 can be 2nm, 3nm, 5nm, 10nm, 15nm, 20nm, 25nm, 30nm, 35nm, 40nm, 45nm, 50nm, 55nm, 60nm, 65nm, 70nm, 75nm, 80nm, 85nm, 90nm, or 95nm, etc. In some embodiments, the thickness of the first superhard layer 13 is in the range of 3nm-50nm, and more specifically, in the range of 2nm-30nm. In this case, the glass structure 100 with the first superhard layer 13 has a higher surface hardness and longer scratch resistance, and the first superhard layer 13 can have higher optical transmittance.

[0076] Figure 4 is a schematic diagram of another glass structural component provided in some embodiments of this application. In Figure 4, compared to Figure 3a, there is an additional second ultra-hard layer 14 and an anti-fingerprint layer 15.

[0077] As shown in Figure 4, a second superhard layer 14 is disposed on the side of the first superhard layer 13 opposite to the second optically scratch-resistant laminate 12. The second superhard layer 14 is made of a different material than the first superhard layer 13. The second superhard layer 14 helps the first superhard layer 13 maintain its high hardness for a longer period, and the combination of these two elements improves the surface layer of the glass structure 100's durability against scratches from high-hardness objects. The second superhard layer 14 may include silicon nitride (Si3N4), silicon carbide (SiC), or silicon carbonitride (SiN2). x2 C y2 ), CN x1 One of them. Among them, x1, x2, and y2 are all between (0, 4].

[0078] In this embodiment, the thickness of the second superhard layer 14 is in the range of 1nm-50nm. A sufficiently low thickness of the second superhard layer 14 ensures that its optical transmittance is not too low, thus not affecting the overall appearance of the glass structure 100. Specifically, the thickness of the second superhard layer 14 can be 2nm, 5nm, 10nm, 15nm, 20nm, 25nm, 30nm, 35nm, 40nm, or 45nm, etc. In some embodiments, the thickness of the second superhard layer 14 is in the range of 2nm-20nm.

[0079] In some embodiments, as shown in FIG4, the glass structure 100 further includes an anti-fingerprint film (AF layer) 15, which is located on the side of the second superhard layer 14 facing away from the first superhard layer 13. The anti-fingerprint layer 15 is mainly used to reduce the formation of fingerprints on the glass structure 100 when a user's finger touches it, thereby not affecting the appearance of the glass structure 100. In addition, the second superhard layer 14 is disposed between the anti-fingerprint layer 15 and the first superhard layer 13, which can reduce the impact of the anti-fingerprint layer 15 on the hardness degradation of the first superhard layer 13 during long-term use.

[0080] Generally, the AF layer 15 is made of fluorine-containing compounds and / or silicon-containing compounds. These compounds possess hydrophobic and oleophobic properties, making the surface of the glass structure 100 easy to clean and providing good resistance to fingerprint residue. In some embodiments, the thickness of the anti-fingerprint layer 15 can be in the range of 5nm-50nm. An appropriately thick anti-fingerprint layer 15 benefits the glass structure 100 by providing good anti-fingerprint durability and abrasion resistance without significantly affecting its optical transmittance.

[0081] Figure 5 is a schematic diagram of another structure of the glass structure provided in some other embodiments of this application. In Figure 5, the anti-fingerprint layer 15 is added compared to Figure 3a.

[0082] In some embodiments of this application, as shown in FIG5, the glass structure 100 further includes an anti-fingerprint layer 15, which is located on the side of the first superhard layer 13 opposite to the second optically scratch-resistant laminate 12. The function, thickness, material, etc. of the anti-fingerprint layer 15 can be found in the preceding description of this application, and will not be repeated here.

[0083] It should be noted that, where there is no conflict, the various features in the embodiments of this application can be combined with each other, and any combination of features in different embodiments is also within the protection scope of this application. That is to say, the multiple embodiments described above can also be arbitrarily combined according to actual needs. For example, in the glass structure 100 shown in FIG. 3b, an AF layer 15 can also be provided on the side of the first superhard layer 13 facing away from the second optical scratch-resistant laminate 12. Further, a second superhard layer 14 can be provided between the AF layer 15 and the first superhard layer 13. In addition, the glass structure 100 described in the embodiments of this application can also be flexibly provided with other film layer structures according to actual needs.

[0084] In this embodiment, the Mohs hardness of the surface of each glass structural member 100 away from the glass substrate 10 is greater than or equal to 7. The term "Mohs hardness," also known as scratch hardness, is the hardness measured by scratching the surface of the glass structural member 100 away from the glass substrate 10 using a mineral of known hardness. Mohs hardness is not an absolute hardness value, but rather a relative hardness expressed in order of hardness.

[0085] The surface of the glass structural component 100 away from the glass substrate 10 has a Mohs hardness greater than or equal to 7. When this surface is scratched by an object with a hardness not exceeding 7, the first superhard layer 13, which has a higher hardness, mainly resists the external scratching force, and the surface of the glass structural component 100 will basically not be scratched. When this surface is scratched by an object with a hardness greater than 7, the first superhard layer 13 and the thicker second optical scratch-resistant layer 12 and the first optical scratch-resistant layer 11 below it can effectively resist scratches caused by high-hardness objects.

[0086] It should be noted that when testing the Mohs hardness, a mineral with known hardness is used to scratch the exposed surface of the glass structure 100 away from the glass substrate 10 (that is, the surface of the layer furthest from the glass substrate 10). For example, for the glass structure 100 shown in Figures 3a and 3b, specifically scratching its first superhard layer 13; for the glass structure 100 shown in Figures 4 and 5, specifically scratching its anti-fingerprint layer 15.

[0087] In this embodiment, the nanoindentation hardness of the glass structural component 100 on the side away from the glass substrate 10, with an indentation depth > 150 nm, is above 14 GPa. This high nanoindentation hardness of the glass structural component 100 reflects its ability to effectively resist deep scratches or persistent scratches caused by high-hardness objects. The testing method for this nanoindentation hardness includes: pressing a diamond indenter onto the exposed surface of the glass structural component 100 on the side away from the glass substrate 100; then gradually pressing the indenter deeper under an increasing external load until a predetermined indentation depth is reached; and calculating the indentation hardness by measuring the indentation depth and the corresponding external load. It should be noted that during the test, in the initial stage, the indentation depth gradually increases with the increase of the external load; however, in later stages, further increases in the external load do not significantly alter the indentation depth.

[0088] In this embodiment, the average transmittance of each of the glass structural components 100 in the visible light region (specifically, wavelengths of 400nm-700nm) is above 88%. After providing a film structure comprising at least the aforementioned first optical scratch-resistant layer 11, second optical scratch-resistant layer 12, and first superhard layer 13 on one side of the glass substrate 10, the resulting glass structural component 100 can still have high visible light transmittance, making it particularly suitable for applications such as display screen covers 101 and camera protective covers 103 where high transparency is required.

[0089] In this embodiment, the color coordinate offset value ΔE of each glass structural component 100 relative to the glass substrate 10 is less than 1.5. The color coordinate offset value ΔE reflects the degree of color change of each glass structural component 100 relative to the glass substrate 10. ΔE = [(ΔL)] 2 +(Δa) 2 +(Δb) 2 ] 1 / 2 ΔL represents the difference in L value between the glass structure 100 and the glass substrate 10 in the Lab chromaticity coordinate system; Δa represents the difference in a value between the glass structure 100 and the glass substrate 10 in the Lab chromaticity coordinate system; and Δb represents the difference in b value between the glass structure 100 and the glass substrate 10 in the Lab chromaticity coordinate system. A larger ΔE value indicates a greater color difference between the glass structure 100 and the glass substrate 10. The smaller ΔE value indicates that even after providing a film structure comprising at least the aforementioned first optical scratch-resistant layer 11, second optical scratch-resistant layer 12, and first superhard layer 13 on one side of the glass substrate 10, the resulting glass structure 100 still exhibits low colorability, and its appearance is essentially unaffected.

[0090] The glass structural component 100 provided in this application embodiment, by sequentially providing a film structure including the first optical scratch-resistant layer 11, the second optical scratch-resistant layer 12, and the first superhard layer 13 on one side surface of the glass substrate, can achieve high hardness, good wear resistance, and scratch resistance, while its optical performance is not significantly different from that of a simple glass substrate 10. Therefore, this glass component can better meet various usage requirements and user experience of electronic devices and has high quality reliability. Furthermore, compared to a glass substrate with only an undoped diamond-like layer (with the same thickness as the first superhard layer 13 in this application), the glass structural component 100 of this application embodiment has higher nano-indentation hardness at the same indentation depth greater than 150 nm, resulting in better durability against deep scratches. Moreover, when the glass structural component 100 of this application embodiment includes the second superhard layer 14, its nano-indentation hardness can be even greater, resulting in higher scratch resistance durability.

[0091] This application also provides an electronic device employing the aforementioned glass structural component. As described above, in the electronic device 1000, at least one of the display screen cover 101, the back cover 102, and the camera protective cover 103 can be the glass structural component 100 provided in this application.

[0092] For example, when the display cover 101 uses the aforementioned glass structure 100, the glass substrate 10 of the glass structure 100 is close to the display screen. The user comes into contact with the surface of the glass structure 100 away from the glass substrate 10. By using this display cover 101 to cover the display screen, scratches and wear on the display screen can be reduced during the use of electronic devices without affecting the display effect.

[0093] For example, when the camera protective cover 103 uses the aforementioned glass structure 100, the glass substrate 10 of the glass structure 100 is close to the camera assembly 2, and the first superhard layer 13 is far away from the camera assembly 2. By using this camera protective cover 103 to cover the camera assembly 2, scratches and wear on the camera of the camera assembly 2 can be reduced during the use of the electronic device, without affecting the image quality.

[0094] The above description merely illustrates exemplary embodiments of this application, and while the description is specific and detailed, it should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

[0095] It should be noted that all the above figures are exemplary illustrations of this application and do not represent the actual size of the product. Furthermore, the dimensional proportions between the components in the figures are not intended to limit the actual product of this application.

[0096] The terms "first," "second," "third," and "fourth" 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. Therefore, a feature defined with "first," "second," "third," or "fourth" may explicitly or implicitly include one or more of that feature.

[0097] In the description of this application, unless otherwise stated, "multiple" means two or more. "At least one" means one or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or multiple items. For example, "at least one of a, b, or c", or "at least one of a, b, and c", can both mean: a, b, c, ab (i.e., a and b), ac, bc, or abc, where a, b, and c can be single or multiple.

[0098] In this application, "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone, where A and B can be singular or plural. The character " / " generally indicates that the related objects before and after it are in an "or" relationship.

[0099] Furthermore, the numerical range indicated by "-" in this application refers to the range including the values ​​before and after "-" as the minimum and maximum values, respectively. Expressions of parameter ranges in this application, such as "greater than or equal to (≥)", "less than or equal to (≤)", "above", and "below", all include the stated number. The numerical values ​​and ranges involved in the embodiments of this application are approximate values ​​and may have a certain range of errors due to the influence of manufacturing processes / testing methods, etc. When the aforementioned numerical values ​​and ranges are within the reasonable error range of measurement, they are also considered to be within the scope of protection of this application.

Claims

1. A glass structural component (100), characterized in that, include: Glass substrate (10), A first optical scratch-resistant layer (11) is disposed on one side of the glass substrate (10); wherein the first optical scratch-resistant layer (11) includes at least one first refractive index material layer (111) and at least one second refractive index material layer (112) alternately stacked, and the refractive index of the first refractive index material layer (111) is greater than that of the second refractive index material layer (112). A second optical scratch-resistant stack (12) is disposed on the side of the first optical scratch-resistant stack (11) away from the glass substrate (10); wherein the second optical scratch-resistant stack (12) includes at least one third refractive index material layer (121), at least one fourth refractive index material layer (122) and at least one fifth refractive index material layer (123) stacked together, and the refractive indices of the third refractive index material layer (121), the fourth refractive index material layer (122) and the fifth refractive index material layer (123) decrease sequentially; A first superhard layer (13) is disposed on the side of the second optical scratch-resistant stack (12) away from the first optical scratch-resistant stack (11); wherein the first superhard layer (13) is diamond-like carbon containing doped elements, and the doped elements include at least one of silicon, aluminum, titanium, zirconium, molybdenum, tungsten and nitrogen.

2. The glass structural component as described in claim 1, characterized in that, The refractive index of the first refractive index material layer (111) is greater than or equal to 1.8, and the refractive index of the second refractive index material layer (112) is less than or equal to 1.60; The refractive index of the third refractive index material layer (121) is greater than 1.80, the refractive index of the fourth refractive index material layer (122) is 1.60-1.80, and the refractive index of the fifth refractive index material layer (123) is less than 1.

60.

3. The glass structural component as described in claim 2, characterized in that, The first refractive index material layer (111) includes one of the following: silicon nitride layer, aluminum nitride layer, aluminum silicon nitride layer, silicon oxynitride layer, aluminum oxynitride layer, and aluminum silicon oxynitride layer; The second refractive index material layer (112) includes one of the following: silicon oxide layer, aluminum oxide layer, aluminum silicon oxide layer, silicon oxynitride layer, aluminum oxynitride layer, and aluminum silicon oxynitride layer.

4. The glass structural component as described in claim 2, characterized in that, The third refractive index material layer (121) includes one of a silicon nitride layer, an aluminum nitride layer, a silicon aluminum nitride layer, and a titanium oxide layer; The fourth refractive index material layer (122) includes one of a silicon oxynitride layer, an aluminum oxynitride layer, and an aluminum oxynitride layer; The fifth refractive index material layer (123) includes one of a silicon oxide layer, an aluminum oxide layer, and a silicon-aluminum oxide layer.

5. The glass structural member as described in any one of claims 1-4, characterized in that, The first optical scratch-resistant stack (11) is close to the surface layer of the second optical scratch-resistant stack (12) as the first refractive index material layer (111), and the first refractive index material layer (111) is in contact with the fourth refractive index material layer (122) or the fifth refractive index material layer (123). Alternatively, the surface layer of the first optical scratch-resistant stack (11) near the second optical scratch-resistant stack (12) is the second refractive index material layer (112), and the second refractive index material layer (112) is in contact with the third refractive index material layer (121) or the fourth refractive index material layer (122).

6. The glass structural member as described in any one of claims 1-5, characterized in that, The thicknesses of the first refractive index material layer (111), the third refractive index material layer (121), the fourth refractive index material layer (122), and the fifth refractive index material layer (123) are respectively in the range of 1nm-2500nm.

7. The glass structural member as described in any one of claims 1-6, characterized in that, The sum of the thicknesses of the first optical scratch-resistant layer (11) and the second optical scratch-resistant layer (12) is in the range of 500nm-3000nm.

8. The glass structural member as described in any one of claims 1-7, characterized in that, The thickness of the first superhard layer (13) is in the range of 1nm-100nm.

9. The glass structural member as described in any one of claims 1-8, characterized in that, In the first superhard layer (13), the doping concentration of the doping element is less than or equal to 20 wt%.

10. The glass structural member according to any one of claims 1-9, characterized in that, A second superhard layer (14) is provided on the side of the first superhard layer (13) away from the second optical scratch-resistant stack (12); the second superhard layer (14) is made of a different material than the first superhard layer (13).

11. The glass structural member as described in claim 10, characterized in that, The second superhard layer (14) includes silicon nitride, silicon carbide, silicon carbonitride, and CN. x1 One of them; where x1 is between (0,4].

12. The glass structural member as described in claim 10 or 11, characterized in that, The thickness of the second superhard layer (14) is in the range of 1nm-50nm.

13. The glass structural member as described in any one of claims 10-12, characterized in that, The glass structure (100) further includes an anti-fingerprint layer (15) located on the side of the second superhard layer (14) away from the first superhard layer (13).

14. The glass structural member as described in any one of claims 1-9, characterized in that, The glass structure (100) further includes an anti-fingerprint layer (15) located on the side of the first superhard layer (13) away from the second optical scratch-resistant layer (12).

15. The glass structural member as described in any one of claims 1-14, characterized in that, The Mohs hardness of the surface of the glass structural member (100) away from the glass substrate (10) is greater than or equal to 7.

16. The glass structural member as described in any one of claims 1-15, characterized in that, The side of the glass structure (100) away from the glass substrate (10) has a nanoindentation hardness of more than 14 GPa at an indentation depth greater than 150 nm.

17. The glass structural member as described in any one of claims 1-16, characterized in that, The average transmittance of the glass structural component (100) in the visible light region is above 88%.

18. The glass structural member as described in any one of claims 1-17, characterized in that, The color coordinate offset ΔE of the glass structural component (100) relative to the glass substrate (10) is less than 1.

5.

19. An electronic device (1000), characterized in that, It includes a housing assembled on the outside of the electronic device (1000) and a circuit board located inside the housing, the housing including a glass structure (100) as described in any one of claims 1-18.

20. The electronic device according to claim 19, characterized in that, The housing includes a display screen cover (101) assembled on the front side of the electronic device (1000) and a rear cover 102 assembled on the rear side of the electronic device (1000); wherein the display screen cover (101) and / or the rear cover (102) adopt the glass structure (100).

21. The electronic device according to claim 19 or 20, characterized in that, The electronic device (1000) also includes a camera assembly (2) located inside the housing, the housing including a camera protective cover (103) covering the camera assembly (2), the camera protective cover (103) being made of the glass structure (100).

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