Textured glass and its preparation method, housing assembly and electronic device

Abstract

The present application provides a textured glass, a preparation method thereof, a housing assembly, and an electronic device. According to an embodiment of the present application, the method for preparing the textured glass includes: contacting the surface of the glass substrate to be processed with a frosting solution for a predetermined time to obtain a medium-processed glass sheet; cleaning the medium-processed glass sheet; and placing the cleaned medium-processed glass sheet into a concave frosting etching solution and standing for a certain time to obtain the textured glass. Thus, after the frosting solution contacts the glass surface, irregular elliptical particles in the micrometer scale can be formed on the glass surface, and thus a new type of texture can be provided for the glass; after the surface of the glass is treated with the frosting solution, and then the glass is contacted with the concave frosting etching solution, etching pits can be further formed between numerous irregular elliptical particles, thereby producing a visual and tactile effect similar to the epidermis of jade seed material.

Description

Technical Field

[0001] The present application relates to the field of electronic technologies, and specifically, to textured glass, a preparation method thereof, a housing assembly, and an electronic device. Background Art

[0002] At present, the diversified demands for the decoration of the rear shell glass of mobile phones are gradually emerging. The existing technologies have certain limitations in the decoration effect. Since the flash sand effect was launched in 2020, there has been no update in the effect, and the texture on the glass surface is single. As a result, consumers have a certain degree of aesthetic fatigue. Summary of the Invention

[0003] The present application aims to solve at least one of the technical problems in the related technologies to some extent. For this purpose, an object of the present application is to provide a frosting solution, which can form micron-sized irregular elliptical particles on the glass surface, thereby providing a new type of glass texture.

[0004] In one aspect of the present application, the present application provides a method for preparing textured glass. According to an embodiment of the present application, the method for preparing textured glass includes: contacting the surface of the glass substrate to be processed with the frosting solution for a predetermined time to obtain a medium-processed glass sheet; cleaning the medium-processed glass sheet; and placing the cleaned medium-processed glass sheet into a concave etching solution and standing for a certain time to obtain the textured glass. Thus, after the frosting solution contacts the glass surface, micron-sized irregular elliptical particles can be formed on the glass surface, thereby providing a new type of texture for the glass; after the surface of the glass is treated with the frosting solution, and then the glass is contacted with the concave etching solution, etching pits can be further formed between many irregular elliptical particles, thereby producing a visual and tactile effect similar to the skin of jade seeds.

[0005] In another aspect of the present application, the present application provides a textured glass. According to an embodiment of the present application, the textured glass is prepared by using the method described above.

[0006] In still another aspect of the present application, the present application provides a housing assembly. According to an embodiment of the present application, the housing assembly includes the textured glass described above.

[0007] In still another aspect of the present application, the present application provides an electronic device. According to an embodiment of the present application, the electronic device includes: the housing assembly described above; a display screen assembly, the display screen assembly is connected to the housing assembly, and an installation space is defined between the display screen assembly and the housing assembly, wherein the textured glass in the housing assembly is arranged away from the installation space; and a main board, the main board is arranged in the installation space and is electrically connected to the display screen assembly. Description of the Drawings

[0008] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description of embodiments in conjunction with the accompanying drawings, wherein:

[0009] Figure 1 is a flowchart of a method for preparing textured glass in an embodiment of the present application;

[0010] Figure 2 is a flowchart of a method for preparing textured glass in another embodiment of the present application;

[0011] Figure 3 is a schematic structural diagram of an electronic device in another embodiment of the present application;

[0012] Figure 4 is a photograph of the effect of imitating the epidermis of jade seeds of the textured glass prepared in Example 1 under a 64-fold electron microscope;

[0013] Figure 5 is a photograph of the effect of imitating the epidermis of jade seeds of the textured glass prepared in Example 1 under a 160-fold electron microscope. Detailed Embodiments

[0014] The solutions of the present application will be explained below in conjunction with embodiments. Those skilled in the art will understand that the following embodiments are only for illustrating the present application and should not be regarded as limiting the scope of the present application. For those not specified in the embodiments in terms of specific techniques or conditions, the techniques or conditions described in the literature in the art or according to the product specifications are followed. Those reagents or instruments not specified in terms of the manufacturer can be obtained as conventional products through commercial purchase.

[0015] The present application will be described below with reference to specific embodiments. It should be noted that these embodiments are merely descriptive and do not limit the present application in any way.

[0016] In one aspect of the present application, the present application provides a method for preparing textured glass. According to an embodiment of the present application, with reference to Figure 1 , the method for preparing textured glass includes:

[0017] S100: Contact the surface of the glass substrate to be processed with the frosting solution for a predetermined time to obtain a medium-processed glass sheet. Thus, after the frosting solution contacts the glass surface, irregular elliptical particles in the micron scale can be formed on the glass surface, and thus a new texture can be provided for the glass. Specifically: Thus, the acid in the frosting solution provides hydrogen ions, and the fluoride provides fluoride ions. The combination of fluoride ions and hydrogen ions generates hydrofluoric acid, which erodes the silicon dioxide skeleton in the glass substrate to form insoluble crystal grains such as fluorosilicate double salts and fluoride double salts on the glass surface. Growing continuously from these crystal grains as crystal nuclei to the surrounding areas blocks the further erosion of the frosting solution on the glass, but the gaps between the crystal grains will continue to be eroded, thereby forming an erosion effect with criss-crossing gullies around the crystal grains, making each crystal grain present an irregular elliptical state.

[0018] It should be noted that the above "irregular elliptical particles" generally refer to irregular particles with a similar elliptical shape or a part of a similar elliptical structure having a major axis and a minor axis.

[0019] In some embodiments, referring to Figure 2 , before the glass substrate contacts the frosting solution, the method for preparing the textured glass further includes: S101: Set a protective layer on the surface of the glass substrate that does not need to be processed. Thus, damage to the surface that does not need to be etched with texture by the frosting solution can be prevented. Among them, there are no special requirements for the specific material and thickness of the protective layer, as long as it can effectively protect other surfaces of the glass substrate from contacting the frosting solution and the subsequent concave frosting etching solution during the process of preparing the texture of the glass substrate. For example, the protective layer can be an ink layer screen-printed with anti-etching ink.

[0020] In some embodiments, before the glass substrate contacts the frosting solution, the method for preparing the textured glass further includes: S102: Pre-treat and wash the surface of the glass substrate to be processed with water in sequence. Thus, pollutants such as dirt and oil stains on the glass surface where the texture needs to be made are cleaned through pre-treatment, and thus the good effect of the texture is ensured. Among them, there are no special requirements for the pre-treatment solution for pre-treatment, and those skilled in the art can flexibly select the currently commonly used glass cleaning solution according to actual needs. For example, the pre-treatment solution can be a mixed solution including hydrofluoric acid, sulfuric acid, additives, etc. In addition, the purpose of water washing is mainly to wash the pre-treatment solution and stains on the surface of the glass substrate clean.

[0021] According to the embodiments of the present application, the method for the glass substrate to contact the frosting solution is: Spray the frosting solution on the surface of the glass substrate. Specifically, the frosting solution can be placed in a spraying device, and then the frosting solution is sprayed on the surface of the glass substrate, so that irregular elliptical particles can be formed better and more uniformly, and the etching rate of the frosting solution etching the glass substrate can be controlled, and thus the size of the irregular elliptical particles can be controlled better.

[0022] Furthermore, the method for the glass sheet to contact with the frosting solution is as follows: in a wet state, the frosting solution is sprayed onto the surface of the glass sheet. The inventor found that it is easier to achieve overall uniform etching for the glass sheet in the wet state than in the dry state, resulting in a lower probability of missed frosting. Among them, in the wet state, spraying the frosting solution onto the surface of the glass sheet can be done without wiping the surface of the glass sheet after water cleaning.

[0023] Furthermore, when the glass sheet contacts with the frosting solution, the temperature of the frosting solution is 20°C to 25°C, and the spraying time is 3 to 5 minutes. Thus, the temperature of the above-mentioned frosting solution can make the etched crystal grains have substantially the same size. If the temperature of the frosting solution is too high or too low, it will be easy to cause different etching effects on different glass sheets and different etching effects in different areas of the same glass sheet.

[0024] Further, based on the total mass of the frosting solution, the frosting solution includes: 18 - 25% NH4HF2; 3 - 8% NH4F; 8 - 15% H2SO4; 10 - 15% HCl; 2 - 6% (NH4)2SO4; 5 - 8% BaSO4; 2 - 6% Mg(NO3)2; 2 - 5% CaCl2; 3 - 5% sodium carboxymethyl cellulose 3 - 8% sucrose; 15 - 25% H2O. Thus, the acids in the frosting solution provide hydrogen ions, and the fluorides provide fluoride ions. The combination of fluoride ions and hydrogen ions generates hydrofluoric acid, which erodes the silicon dioxide skeleton in the glass sheet, forming insoluble crystal grains such as fluorosilicate double salts and fluoride double salts on the glass surface. Growing continuously towards the periphery with these crystal grains as crystal nuclei, it blocks the further erosion of the glass by the frosting solution. However, the gaps between the crystal grains will continue to be eroded, thus forming an erosion effect with criss-crossed gullies around the crystal grains, making each single crystal grain present an irregular elliptical state. And the frosting solution with the above composition and ratio can better form crystal grains in the micron scale with similar sizes, and thus a glass with more uniform texture can be obtained.

[0025] S200: Clean the centered glass sheet.

[0026] According to the embodiment of the present invention, the surface roughness of the centered glass sheet is 2.0 μm to 2.5 μm. It can be seen that the irregular elliptical particles formed by the above method of the present application are in the micron scale, and their sizes are similar and relatively uniform.

[0027] S300: Place the post-processed glass sheet after cleaning into the concave frosting etching solution, and let it stand for a certain period of time to obtain textured glass. Thus, after being treated with the above-mentioned frosting solution, the post-processed glass sheet is then contacted with the concave frosting etching solution, which can further form etching pits between numerous irregular elliptical particles (as described above, the irregular elliptical particles are insoluble crystal grains such as fluorosilicate double salts and fluoride double salts. Therefore, the concave frosting etching solution will not etch the irregular elliptical particles, but only etch the glass between the irregular elliptical particles, thereby forming pits), so as to produce a visual and tactile effect similar to the epidermis of jadeite jade seeds; moreover, the above process for preparing textured glass is relatively simple and practical, easy to operate, and low in cost. The obtained textured glass has a good imitation of the epidermis of jadeite jade seeds, and its personalized novelty meets the current decorative requirements of the equipment using this textured glass, and the decorative performance is excellent; in addition, the textured glass also has excellent properties such as anti-reflection light, anti-scratch, anti-dust, and anti-fingerprint, meeting people's decorative requirements for the electronic products using this textured glass to be unique.

[0028] According to the embodiments of the present application, there are no special requirements for the specific components of the concave frosting etching solution. Those skilled in the art can flexibly select in the prior art according to the actual situation as long as the use requirements can be met. Among them, the main components of the concave frosting etching solution are components such as hydrofluoric acid, sulfuric acid, and additives.

[0029] Furthermore, the time for the post-processed glass sheet to stand in the concave frosting etching solution can be 20 - 30 minutes. In this way, etching pits can be fully formed between numerous irregular elliptical particles, ensuring a good visual and tactile effect of imitating the epidermis of jadeite jade seeds.

[0030] According to the embodiments of the present application, the surface roughness of the textured glass is 2.0 μm - 2.5 μm. It can be seen that the irregular elliptical particles formed by the above method of the present application are micron-sized, and their sizes are not very different and are relatively uniform. It should be noted that the concave frosting etching solution only forms etching pits between the irregular elliptical particles and basically does not affect the roughness of the post-processed glass sheet. Therefore, the surface roughness of the post-processed glass sheet is the same as that of the textured glass.

[0031] On the other hand of the present application, the present application provides a kind of textured glass. According to the embodiments of the present application, the textured glass is prepared by using the method described above. Thus, the surface of this textured glass has a good imitation of the epidermis of jadeite jade seeds, and its personalized novelty meets the current decorative requirements of the equipment using this textured glass, and the decorative performance is excellent; in addition, the textured glass also has excellent properties such as anti-reflection light, anti-scratch, anti-dust, and anti-fingerprint, meeting people's decorative requirements for the electronic products using this textured glass to be unique.

[0032] In yet another aspect of the present application, the present application provides a housing assembly. According to an embodiment of the present application, the housing assembly includes the aforementioned textured glass. Thus, the textured glass, as the housing body of the housing assembly, can give the housing assembly an excellent imitation of the epidermis effect of jadeite pebbles, and its personalized novelty meets the decorative requirements of current electronic devices such as smart phones. The decorative performance is extremely good. In addition, the textured glass also has excellent properties such as anti-reflection light, anti-scratch, anti-dust, and anti-fingerprint, meeting people's decorative requirements for electronic devices such as smart phones that seek novelty.

[0033] Those skilled in the art can understand that in addition to the aforementioned textured glass, the housing assembly may further include, but is not limited to, layer structures such as a UV texture layer, a film sheet, a coating layer, a color layer, and an ink layer, so as to ensure the rich and diverse appearance effects of the housing assembly.

[0034] In yet another aspect of the present application, the present application provides an electronic device. According to an embodiment of the present application, referring to Figure 3 , the electronic device 1000 includes: the aforementioned housing assembly 100; a display screen assembly, the display screen assembly is connected to the housing assembly 100, and an installation space is defined between the display screen assembly and the housing assembly 100, wherein the textured glass in the housing assembly is arranged away from the installation space; and a main board, the main board is arranged in the installation space and is electrically connected to the display screen assembly.

[0035] The specific type of the electronic device described in the present application is not particularly limited. For example, it can be a mobile phone, a smart watch, a palm computer, or a notebook computer. The above-mentioned electronic device can be any one of various types of computer system devices that are mobile or portable and perform wireless communication. Specifically, the electronic device can be a mobile phone or a smart phone (for example, a phone based on iPhone TM, a phone based on Android TM), a portable game device (for example, Nintendo DS TM, PlayStation Portable TM, Gameboy Advance TM, iPhone TM), a laptop computer, a PDA, a portable Internet device, a music player, and a data storage device, other handheld devices, and such as watches, in-ear headphones, pendants, and head-mounted headphones. The electronic device can also be other wearable devices (for example, head-mounted devices (HMD) such as electronic glasses, electronic clothes, electronic bracelets, electronic necklaces, electronic tattoos, or smart watches).

[0036] The electronic device may also be any one of a plurality of electronic devices, including but not limited to cellular phones, smart phones, other wireless communication devices, personal digital assistants, audio players, other media players, music recorders, video recorders, cameras, other media recorders, radios, medical devices, vehicle transportation instruments, calculators, programmable remote controls, pagers, laptop computers, desktop computers, printers, netbook computers, personal digital assistants (PDAs), portable multimedia players (PMPs), Moving Picture Experts Group (MPEG-1 or MPEG-2) Audio Layer 3 (MP3) players, portable medical devices, and digital cameras and combinations thereof.

[0037] In some cases, the electronic device can perform multiple functions (e.g., play music, display video, store pictures, and receive and send phone calls). If desired, the electronic device can be a portable device such as a cellular phone, a media player, other handheld device, a wristwatch device, a pendant device, a handset device, or other compact portable device.

[0038] Example

[0039] Example 1

[0040] 1. Prepare frosting liquid according to the following ratio (wt%): NH4HF2 21.3%, NH4F 6.0%, H2SO4 11.2%, HCl 12.8%, (NH4)2SO4 6.8%, BaSO4 5.6%, Mg(NO3)2 3.5%, CaCl2 5.2%, sodium carboxymethyl cellulose 4.0%, sucrose 5.3% and H2O 18.3%. Stir the above raw materials until the liquid is in a uniform supersaturated solution state, so as to obtain a frosting liquid specially used for imitation jade seed material surface effect.

[0041] 2. The surface of the high-alumina-silicon glass original sheet that does not need to be etched is covered and protected with anti-etching ink silk screen printing.

[0042] 3. Pre-treat the surface of the high-alumina silicon glass original sheet to be etched with a pre-treatment liquid, then clean it with pure water, and then put it into the etching spray device in a wet state for sand etching treatment.

[0043] 4. Control the temperature of the frosting liquid to 20-25°C and the spray etching time to 3 minutes.

[0044] 5. When the etching time requirement is reached, take out the etched processed glass sheet from the spray device in time, and then clean it with pure water.

[0045] 6. The sandblasted intermediate-processed glass sheet is placed in the concave sandblasting etching solution and left standing for 22 minutes. After taking it out, it is cleaned with pure water and then air-dried or dried to obtain the textured glass with the effect of imitation jadeite pebble skin. The schematic diagram of the prepared textured glass under the microscope can be referred to Figure 4 and Figure 5 , Figure 4 is a photo of the textured glass with the effect of imitation jadeite pebble skin under a 64-fold electron microscope, Figure 5 is a photo of the textured glass with the effect of imitation jadeite pebble skin under a 160-fold electron microscope.

[0046] Example 2

[0047] 1. Prepare the sandblasting solution according to the following ratio (wt%): NH4HF2 18.5%, NH4F 7.5%, H2SO4 12.6%, HCl 11.5%, (NH4)2SO4 6.6%, BaSO4 5.3%, Mg(NO3)2 3.8%, CaCl2 4.6%, sodium carboxymethylcellulose 4.5%, sucrose 3.6% and H2O 21.5%. Stir the above raw materials evenly until the liquid medicine presents a uniform supersaturated solution state, and then the sandblasting solution special for the effect of imitation jadeite pebble skin is obtained.

[0048] 2. Screen and cover the surface of the high-aluminum silicon glass original sheet that does not need to be etched with anti-etching ink.

[0049] 3. Pretreat the surface of the high-aluminum silicon glass original sheet that needs to be etched with the pretreatment solution, then clean it with pure water, and then place it in the etching spray device in a wet state for sandblasting etching treatment.

[0050] 4. Control the temperature of the sandblasting solution at 20 - 25 °C and control the spray etching time at 3.5 minutes.

[0051] 5. After reaching the etching time requirement, promptly take out the intermediate-processed glass sheet after etching from the spray device, and then clean it with pure water.

[0052] 6. The sandblasted intermediate-processed glass sheet is placed in the concave sandblasting etching solution and left standing for 25 minutes. After taking it out, it is cleaned with pure water and then air-dried or dried to obtain the textured glass with the effect of imitation jadeite pebble skin.

[0053] Example 3

[0054] 1. Prepare the frosting solution according to the following ratio (wt%): NH4HF2 22.0%, NH4F 3.5%, H2SO4 10.5%, HCl 12.3%, (NH4)2SO4 5.8%, BaSO4 5.6%, Mg(NO3)2 4.6%, CaCl2 4.5%, sodium carboxymethyl cellulose 4.8%, sucrose 5.6% and H2O 20.8%. Stir the above raw materials evenly until the liquid medicine presents a uniform supersaturated solution state, then the frosting solution special for imitating the epidermis effect of jade-like stone seeds is prepared.

[0055] 2. Screen and cover the surface of the high-aluminum silicon glass original sheet that does not need to be etched with anti-etching ink for protection.

[0056] 3. Pretreat the surface of the high-aluminum silicon glass original sheet that needs to be etched with a pretreatment solution, then wash it clean with pure water, and then place it in an etching spray device in a wet state for sand spraying and etching treatment.

[0057] 4. Control the temperature of the frosting solution at 20 - 25 °C, and control the spray etching time at 3.5 minutes.

[0058] 5. After reaching the etching time requirement, promptly take out the post-treated glass sheet etched from the spray device, and then wash it clean with pure water.

[0059] 6. Put the post-treated glass sheet after frosting into the concave frosting etching solution, and let it stand for 28 minutes. After taking it out, wash it clean with pure water, and then air-dry or bake it to obtain the textured glass with the epidermis effect of imitating jade-like stone seeds.

[0060] For the comparison of the performance parameters before and after etching of the textured glass prepared in Examples 1 to 3, see Table 1.

[0061] Table 1

[0062] Performance Original glass sheet Example 1 Example 2 Example 3 Gloss (%) 110.8 33.8 34.2 33.2 Transmittance (%) 98.8 26.2 25.8 25.3 Haze (%) 0.00 75.6 76.8 76.2 Roughness (μm) 0 2.6 2.5 2.7 Reflectance (%) 8.6 3.5 3.3 3.6

[0063] As can be seen from Table 1, the textured glass prepared in Examples 1 to 3 not only has a good effect of imitating the epidermis of jade-like stone seeds, but also the above gloss, haze, light transmittance, roughness and reflectivity of the textured glass well meet the usage requirements of the glass for the mobile phone housing, making the housing assembly have excellent properties such as anti-reflection light, anti-scratch, anti-dust and anti-fingerprint.

[0064] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0065] Although the embodiments of this application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting this application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application.

Claims

1. A method for preparing textured glass, characterized in that, Comprising: Contacting the surface of the glass sheet to be processed with the frosting solution for a predetermined time to form irregular elliptical particles on the surface of the glass sheet, thereby obtaining a medium-processed glass sheet; The frosting solution comprises, by mass fraction: 18-25% of NH4HF2; 3-8% of NH4F; 8-15% of H2SO4; 10-15% of HCl; 2-6% of (NH4)2SO4; 5-8% of BaSO4; 2-6% of Mg(NO3)2; 2-5% of CaCl2; 3-5% of sodium carboxymethylcellulose; 3-8% of sucrose; and 15-25% of H2O; Cleaning the medium-processed glass sheet; Placing the cleaned medium-processed glass sheet into a concave etching solution and standing for a certain time to obtain the textured glass.

2. The method according to claim 1, characterized in that, The method for contacting the glass sheet with the frosting solution is: spraying the frosting solution onto the surface of the glass sheet.

3. The method according to claim 2, characterized in that, Before the glass sheet contacts with the frosting solution, it further comprises: successively pre-treating and water-washing the surface of the glass sheet to be processed, The method for contacting the glass sheet with the frosting solution is: spraying the frosting solution onto the surface of the glass sheet in a wet state.

4. The method according to claim 2, characterized in that, When the glass sheet contacts with the frosting solution, the temperature of the frosting solution is 20°C to 25°C, and the spraying time is 3 to 5 minutes.

5. The method according to any one of claims 1 to 4, characterized in that, Before the glass sheet contacts with the frosting solution, it further comprises: providing a protective layer on the surface of the glass sheet that does not need to be processed.

6. The method according to any one of claims 1 to 4, characterized in that, The surface roughness of the textured glass is 2.0 μm to 2.5 μm.

7. A textured glass, characterized in that, It is prepared by using the method according to any one of claims 1 to 6.

8. A housing assembly, characterized in that, Comprising the textured glass according to claim 7.

9. An electronic device, characterized in that, Comprising: The housing assembly according to claim 8; A display screen assembly, the display screen assembly is connected to the housing assembly, and an installation space is defined between the display screen assembly and the housing assembly, wherein the textured glass in the housing assembly is arranged away from the installation space; And A main board, the main board is arranged in the installation space and is electrically connected to the display screen assembly.

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