CN113943109A

CN113943109A - Preparation method of anti-glare glass, shell and electronic equipment

Info

Publication number: CN113943109A
Application number: CN202111340643.7A
Authority: CN
Inventors: 杨啸
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2022-01-18
Anticipated expiration: 2041-11-12
Also published as: CN113943109B

Abstract

The application provides a preparation method of anti-glare glass, a shell and electronic equipment; the preparation method comprises the following steps: placing the glass substrate in the etching solution at an acute angle with the liquid level; standing in the etching solution for a preset time to form primary crystal nuclei; and swinging the glass substrate after primary crystal nuclei are formed in the etching solution to form a glass surface with a target crystallization effect. According to the preparation method of the anti-glare glass, the glass obtained by the method has the appearance effect of the cryolite sand, the problem that the anti-glare effect of the electronic equipment shell is single or even deficient can be solved, the expressive force of the appearance effect of the shell is increased, more choices are made for people to pursue beauty, the ever-increasing aesthetic requirement of people on the electronic equipment shell can be met to a certain extent, and the competitiveness of electronic equipment products is improved.

Description

Preparation method of anti-glare glass, shell and electronic equipment

Technical Field

The invention relates to the technical field of shell preparation processes, in particular to a preparation method of anti-glare glass, a shell and electronic equipment.

Background

The housing of electronic equipment such as a mobile phone is becoming one of selling points. The rear cover has various appearance effects such as fading, frosting, and ceramics. However, these appearance effects still cannot meet the aesthetic requirements of people, and continuous innovation is needed.

Disclosure of Invention

In a first aspect, embodiments of the present application provide a method for manufacturing an anti-glare glass, the method including:

placing the glass substrate in the etching solution at an acute angle with the liquid level;

standing in the etching solution for a preset time to form primary crystal nuclei;

and swinging the glass substrate after primary crystal nuclei are formed in the etching solution to form a glass surface with a target crystallization effect.

In a second aspect, embodiments of the present application provide a housing, which includes an appearance film, an anti-fingerprint layer, and a glass plate, wherein the glass plate is prepared by the method described in any one of the above embodiments; the appearance diaphragm with prevent that the fingerprint layer is located respectively the relative both sides of glass board, wherein, prevent that the fingerprint layer locates glass board forms the one side surface of crystallization.

In addition, this application embodiment provides an electronic equipment again, electronic equipment include display screen, control circuit board and above-mentioned embodiment the casing, the casing with the display screen cooperation is formed with accommodation space, control circuit board locates in the accommodation space, and with the display screen electricity is connected.

According to the preparation method of the anti-glare glass, the glass obtained by the method has the appearance effect of the cryolite sand, the problem that the anti-glare effect of the electronic equipment shell is single or even deficient can be solved, the expressive force of the appearance effect of the shell is increased, more choices are made for people to pursue beauty, the ever-increasing aesthetic requirement of people on the electronic equipment shell can be met to a certain extent, and the competitiveness of electronic equipment products is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic flow chart of an embodiment of a method for producing an anti-glare glass according to the present application;

FIG. 2 is a schematic view showing a positional relationship between a glass substrate and a liquid surface;

FIG. 3 is a surface of an anti-glare glass having an ice crystal sparkling sand effect obtained by the manufacturing method of FIG. 1;

FIG. 4 is an enlarged schematic view of a portion of the structure of the ice crystal sparkling sand effect anti-glare glass of FIG. 3 at the surface A;

FIG. 5 is a schematic flow chart of another embodiment of a method for making an anti-glare glass of the present application;

FIG. 6 is a schematic flow chart of yet another embodiment of a method for making an anti-glare glass of the present application;

FIG. 7 is a schematic view of a stacked configuration of an embodiment of the present application housing;

FIG. 8 is a schematic flow chart diagram illustrating one embodiment of a method for making the shell according to the embodiment of FIG. 7;

FIG. 9 is a schematic cross-sectional view of an embodiment of an electronic device of the present application;

fig. 10 is a block diagram illustrating a structural composition of an embodiment of an electronic device according to the present application.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be noted that the following examples are only illustrative of the present invention, and do not limit the scope of the present invention. Likewise, the following examples are only some but not all examples of the present invention, and all other examples obtained by those skilled in the art without any inventive step are within the scope of the present invention.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

As used herein, an "electronic device" (or simply "terminal") includes, but is not limited to, an apparatus that is configured to receive/transmit communication signals via a wireline connection, such as via a Public Switched Telephone Network (PSTN), a Digital Subscriber Line (DSL), a digital cable, a direct cable connection, and/or another data connection/network, and/or via a wireless interface (e.g., for a cellular network, a Wireless Local Area Network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter, and/or another communication terminal). A communication terminal arranged to communicate over a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal" or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; a Personal Communications System (PCS) terminal that may combine a cellular radiotelephone with data processing, facsimile and data communications capabilities; PDAs that may include radiotelephones, pagers, internet/intranet access, Web browsers, notepads, calendars, and/or Global Positioning System (GPS) receivers; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. A cellular phone is an electronic device equipped with a cellular communication module.

The application aims to provide an electronic equipment shell with an ice crystal glittering sand effect, such as a battery cover of a mobile phone. Referring to fig. 1, fig. 1 is a schematic flow chart of an embodiment of a method for manufacturing an anti-glare glass according to the present application; it should be noted that the anti-glare glass in the present application may be a housing for an electronic device, and the electronic device may include a mobile phone, a tablet computer, a notebook computer, a wearable device, and the like, which is not limited herein. The preparation method includes, but is not limited to, the following steps. It should be noted that the terms "comprises" and "comprising," and any variations thereof, in the embodiments of the present application, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or may alternatively include other steps or elements inherent to such process, method, article, or apparatus.

Step S100, the glass substrate is placed in the etching solution at an acute angle with the liquid level.

In this step, the glass substrate may be panda glass, and the etching solution may be anti-glare (AG) solution, which specifically includes various acids, adjuvants, alcohols, etc., and the etching solution is a conventional choice in the art and will not be described in detail herein. Wherein the temperature of the etching solution can be controlled to be 20-30 degrees centigrade, such as about 25 degrees centigrade. The glass substrate can be clamped by a mechanical arm combined with a special fixture.

Alternatively, in step S100, the angle between the glass substrate and the liquid level may be 20 to 40 degrees, such as 20 degrees, 25 degrees, 30 degrees, 32 degrees, 35 degrees, 40 degrees, and the like. Referring to fig. 2, fig. 2 is a schematic diagram of the position relationship between the glass substrate and the liquid surface, wherein an angle a between one glass substrate 11 and the liquid surface 12 is schematically shown. The angle a ranges between 20-40 degrees.

Step S200, standing in the etching solution for a preset time to form primary crystal nuclei.

In step S200, the glass substrate 11 may be immersed and left standing in the state shown in fig. 2, the preset time for the standing may be 20 to 60S, such as 20S, 30S, 40S, 50S, 55S, 60S, etc., and the longer the standing time is, the larger the primary crystal nuclei are, and the proper standing time may be selected according to the specific design requirements.

Step S300, the glass substrate after the primary crystal nucleus is formed is swung in the etching solution to form the glass surface with the target crystallization effect.

In this step, the glass substrate is maintained at an acute angle to the liquid surface (in fig. 2) and starts to swing (like a pendulum, drawing an arc shape) in a direction perpendicular to the paper surface in fig. 2, and primary crystal nuclei are grown by collision nucleation to form an ice crystal sparkling sand-effect antiglare glass surface. Referring to fig. 3 and 4 together, fig. 3 is a view illustrating an ice crystal sparkling sand effect anti-glare glass surface obtained by the manufacturing method of fig. 1, and fig. 4 is an enlarged view illustrating a partial structure of the ice crystal sparkling sand effect anti-glare glass surface a of fig. 3. The ice crystal glittering sand effect is characterized in that the roughness is about 3.5um, the haze is about 85 percent, the transmittance is 10 to 20 percent, and the crystal forms are in a leaf-shaped scattered arrangement.

Alternatively, in the step of oscillating the glass substrate after the formation of the primary crystal nuclei in the etching solution to form the glass surface with the target crystallization effect, the time period for oscillating the glass substrate after the formation of the primary crystal nuclei in the etching solution may be 30s to 100s, specifically 30s, 40s, 50s, 55s, 60s, 80s, 100s, and the like, and the longer the oscillation time is, the larger the crystals are, the more remarkable the effect of the formed ice crystal glittering sand is.

Referring to fig. 5, fig. 5 is a schematic flow chart of another embodiment of the method for manufacturing the anti-glare glass according to the present application; the preparation method in this embodiment includes, but is not limited to, the following steps.

Step S400, forming an ink layer for protecting the etching liquid on the amorphous surface of the glass substrate.

In this step, the glass substrate may be placed in a profiling jig, and the amorphous surface is uniformly sprayed with an acid-resistant (etching resist) protective ink, the thickness of which may be 15um, and subjected to a solid baking at 150 ℃ for 30min to form a film.

Step S500, the glass substrate is cleaned.

In step S500, washing with water and washing with acid are included. Firstly, washing with normal-temperature water for about 30s, and adding overflow (continuously filling liquid in a water tank to ensure cleanness and cleanness). Then acid washing: 10% by mass of mixed acid, at about 20 ℃ for about 30s, and bubbling (the specific ratio is HF: H2SO 4: HCL: 5: 3: 2). Then, carrying out normal-temperature water washing for another time, wherein the time can be 30s, and adding overflow; and finally, washing by adding AG water before etching: the water temperature can be about 20 ℃, the soaking time is about 1min, and the overflow is added.

In step S200, the glass substrate 11 may be immersed and left standing in the state shown in fig. 2, the preset time for the standing may be 20 to 60S, such as 20S, 30S, 40S, 50S, 55S, 60S, etc., and the longer the standing time is, the larger the primary crystal nuclei are, and the proper standing time may be selected according to the specific design requirements. It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present application are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In this step, the glass substrate is maintained at an acute angle to the liquid surface (in fig. 2) and starts to swing (like a pendulum, drawing an arc shape) in a direction perpendicular to the paper surface in fig. 2, and primary crystal nuclei are grown by collision nucleation to form an ice crystal sparkling sand-effect antiglare glass surface. The ice crystal glittering sand effect is characterized in that the roughness is about 3.5um, the haze is about 85 percent, the transmittance is 10 to 20 percent, and the crystal forms are in a leaf-shaped scattered arrangement.

In the preparation method of the anti-glare glass in the embodiment, the ink layer for protecting the etching solution is formed on the amorphous surface of the glass substrate, so that the amorphous surface of the glass substrate can be protected, and a single-sided crystallization effect is realized. In addition, through the step of cleaning the glass substrate before AG etching, the cleanness of the crystal surface and the requirement of roughness before etching can be ensured.

Referring to fig. 6, fig. 6 is a schematic flow chart illustrating a method for manufacturing an anti-glare glass according to another embodiment of the present invention; the preparation method in this embodiment includes, but is not limited to, the following steps.

Step S500, the glass substrate is cleaned.

In this step, the glass substrate is maintained at an acute angle to the liquid surface (in fig. 2) and starts to swing (like a pendulum, drawing an arc shape) in a direction perpendicular to the paper surface in fig. 2, and primary crystal nuclei are grown by collision nucleation to form an ice crystal sparkling sand-effect antiglare glass surface.

And step S600, chemically polishing the formed crystal surface by adopting an acid solution.

Optionally, a step of cleaning the anti-glare glass surface that forms the ice crystal sparkling sand effect may be further included before this step. The step of cleaning may specifically include throwing up and down in clear water with a robotic arm to throw off excess crystals adhering to the surface. Then a sulfuric acid wash can be performed: soaking in 5% sulfuric acid solution at 25 deg.C for 1min to dissolve the residual crystal; then, washing with water again: washing to remove the residual dilute sulfuric acid solution and washing the glass. The step of cleaning may further include a step of removing the ink layer, and specifically may be soaking in an alkali solution at a temperature of 60 ℃ for 5 minutes.

In step S600, the glass may be chemically polished by an HF solution (aqueous solution of hydrofluoric acid), and the polishing amount may be controlled to be about 20um on both sides.

And S700, performing ion exchange on the glass surface in a salt solution.

In this step, the glass may be strengthened by ion exchange in 300-600 degree KNO3 solution. The specific temperature may be 450 degrees.

In the preparation method of the anti-glare glass in the embodiment, the acid solution is adopted to chemically polish the formed crystallization surface on the glass surface with the target crystallization effect, so that the definition of the glass showing the ice crystal flash sand effect can be improved; in addition, the overall strength of the glass can be improved by ion exchange of the glass surface in a salt solution.

In addition, a housing is further provided in the embodiment of the present application, please refer to fig. 7, fig. 7 is a schematic view of a laminated structure in the embodiment of the housing of the present application, and the housing 10 includes an appearance film 101, an anti-fingerprint layer 102, and a glass plate 103. Wherein the glass plate 103 is formed by the method described in the previous embodiment; the appearance membrane 101 and the anti-fingerprint layer 102 are respectively arranged on two opposite sides of the glass plate 103, wherein the anti-fingerprint layer 102 is arranged on one side surface of the glass plate 103 where crystals are formed. The appearance film 101 may include a color film, a texture film, and other optical films, and may be specifically attached to the glass plate 103 by an optical adhesive. And the anti-fingerprint layer 102 may be plated on the surface of the glass plate 103 on which the crystals are formed. It should be noted that the terms "first", "second" and "third" in the embodiments of the present application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

The method for manufacturing the case in this embodiment will be described in detail below.

Referring to fig. 8, fig. 8 is a schematic flow chart illustrating an embodiment of a method for manufacturing the housing of fig. 7 according to the present application, which includes, but is not limited to, the following steps.

And step S10, cutting.

The method comprises the following steps: the panda glass blanks are cut to a preset size (what is done for example with the cell phone battery cover) that leaves a margin for subsequent CNC.

And step S20, CNC fine engraving, copying the shape of the battery cover according to a drawing, and engraving 4R angles.

And step S30, polishing, and removing burrs on the periphery of the glass. This step may be carried out in about 20 minutes.

And S40, hot bending, namely putting the clean glass into a graphite mould for hot bending forming, wherein the heating temperature is about 680 ℃, the pressure is about 110KG, and the speed is about 40min per batch.

And step S50, polishing the concave-convex surface, and removing the mold marks, concave-convex points and the like of the concave-convex surface of the glass by using a brush, wherein the polishing time is about 100 min.

Step S60, antiglare etching. The detailed process of this step is described in the foregoing embodiments, and is not repeated here.

And step S70, pasting an appearance membrane. Specifically, the required appearance membrane is discharged with air bubbles from the middle to two sides by a 3d laminating machine under the vacuum state, the pressure is about 10kg, and the speed is about 20s per membrane.

And step S80, plating an anti-fingerprint layer. In the step, the AF pills can be evaporated at 120 ℃ by using a film coating machine and an umbrella and are uniformly attached to the outer surface of the battery cover, so that the battery cover is endowed with smooth hand feeling and anti-fingerprint effect.

Step S90, spraying and repairing edges and pasting auxiliary materials; and finishing the manufacture of the battery cover.

The casing in the embodiment of this application has the outward appearance effect of ice crystal flash of light sand, can solve the single problem deficient even of electronic equipment shell anti-dazzle effect, increases the expressive force of shell outward appearance effect, for more a bit of selection of pursuit of people to beauty, can satisfy people to the increasingly pleasing to the eye demand of electronic equipment shell to a certain extent, improves the competitiveness of electronic equipment product.

Further, an electronic device is provided in an embodiment of the present application, please refer to fig. 9, where fig. 9 is a schematic cross-sectional structure diagram of an embodiment of the electronic device of the present application, and the electronic device in the embodiment may include a display screen 30, a housing 10, and a control circuit board 20. The structure of the housing 10 is as described in the previous embodiments.

Optionally, the display screen 30 and the housing 10 cooperate to form an accommodating space 1000, the control circuit board 20 is disposed in the accommodating space 1000, the control circuit board 20 is electrically connected to the display screen 30, and the control circuit board 20 is configured to control the display screen 30 to work. The detailed technical features of other parts of the electronic device are within the understanding of those skilled in the art, and are not described herein.

Referring to fig. 10, fig. 10 is a block diagram illustrating a structural composition of an embodiment of an electronic device according to the present application, where the electronic device may be a mobile phone, a tablet computer, a notebook computer, a wearable device, and the like, and the embodiment illustrates a mobile phone as an example. The electronic device may include an RF circuit 910, a memory 920, an input unit 930, a display unit 940 (i.e., the display screen 30 in the above-described embodiment), a sensor 950, an audio circuit 960, a wifi module 970, a processor 980 (which may be the control circuit board 20 in the above-described embodiment), a power supply 990, and the like. Wherein the RF circuit 910, the memory 920, the input unit 930, the display unit 940, the sensor 950, the audio circuit 960, and the wifi module 970 are respectively connected with the processor 980; power supply 990 is operable to provide power to the entire electronic device 10.

Specifically, the RF circuit 910 is used for transmitting and receiving signals; the memory 920 is used for storing data instruction information; the input unit 930 is used for inputting information, and may specifically include a touch panel 931 and other input devices 932 such as operation keys; the display unit 940 may include a display panel 941; the sensor 950 includes an infrared sensor, a laser sensor, etc. for detecting a user approach signal, a distance signal, etc.; a speaker 961 and a microphone 962 are connected to the processor 980 through the audio circuit 960 for emitting and receiving sound signals; the wifi module 970 is used for receiving and transmitting wifi signals, and the processor 980 is used for processing data information of the electronic device. For specific structural features of the electronic device, please refer to the related description of the above embodiments, and detailed descriptions thereof will not be provided herein.

The electronic equipment in the embodiment has the appearance effect of the cryolite sand, can solve the problem that the anti-glare effect of the electronic equipment shell is single or even deficient, increases the expressive force of the appearance effect of the shell, and can meet the increasing aesthetic requirement of people on the electronic equipment shell to a certain extent for more and more choices of people for pursuing beauty, thereby improving the competitiveness of electronic equipment products.

The above description is only a part of the embodiments of the present invention, and not intended to limit the scope of the present invention, and all equivalent devices or equivalent processes performed by the present invention through the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A method for producing an anti-glare glass, comprising:

2. The method according to claim 1, wherein in the step of placing the glass substrate in the etching solution at an acute angle to the liquid surface, the angle between the glass substrate and the liquid surface is 20 to 40 degrees.

3. The method of claim 1, wherein in the step of standing in the etching solution for a predetermined time to form primary crystal nuclei, the predetermined time is 20 to 60 seconds.

4. The production method according to claim 1, wherein in the step of oscillating the glass substrate after formation of the primary crystal nuclei in the etching solution to form the glass surface of the target crystallization effect, the time period for oscillating the glass substrate after formation of the primary crystal nuclei in the etching solution is 30s to 100 s.

5. The method of claim 1, further comprising, prior to the step of placing the glass substrate in the etching solution at an acute angle to the liquid surface: and forming an ink layer for protecting the etching liquid medicine on the amorphous surface of the glass substrate.

6. The method according to claim 5, wherein the step of placing the glass substrate in the etching solution at an acute angle to the liquid surface further comprises a step of cleaning the glass substrate, and the step of cleaning comprises cleaning with water and cleaning with acid.

7. The method according to claim 1, wherein the step of oscillating the glass substrate after forming the primary nuclei in the etching solution to form a glass surface of a target crystallization effect is followed by the step of: the resulting crystalline surface is chemically polished with an acidic solution.

8. The method for preparing a crystal according to claim 7, further comprising, after the step of chemically polishing the formed crystal surface with an acidic solution, the steps of: the glass surface ion exchange is carried out in a salt solution.

9. A housing comprising an appearance film, an anti-fingerprint layer, and a glass plate formed by the method of any one of claims 1-8; the appearance diaphragm with prevent that the fingerprint layer is located respectively the relative both sides of glass board, wherein, prevent that the fingerprint layer locates glass board forms the one side surface of crystallization.

10. An electronic device, comprising a display screen, a control circuit board and the housing of claim 9, wherein the housing and the display screen are matched to form an accommodating space, and the control circuit board is disposed in the accommodating space and electrically connected to the display screen.