CN113943109B

CN113943109B - Preparation method of anti-glare glass, shell and electronic equipment

Info

Publication number: CN113943109B
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: 2023-11-03
Anticipated expiration: 2041-11-12
Also published as: CN113943109A

Abstract

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

Description

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

Technical Field

The application relates to the technical field of shell manufacturing processes, in particular to a manufacturing method of anti-dazzle glass, a shell and electronic equipment.

Background

The housing of electronic devices such as cell phones has become one of the selling points. The rear cover has a variety of appearance effects such as gradual discoloration, frosting, and ceramics. However, these appearance effects still cannot meet the aesthetic demands of people, and further innovation is needed.

Disclosure of Invention

An embodiment of the present application provides a method for preparing an antiglare glass, including:

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

standing in the etching liquid for a preset time to form primary crystal nucleus;

the glass substrate after primary crystal nuclei are formed is oscillated in the etching liquid to form a glass surface of a target crystallization effect.

In a second aspect, embodiments of the present application provide a housing comprising an appearance film, an anti-fingerprint layer, and a glass sheet formed by the method of any of the above embodiments; the appearance membrane and the anti-fingerprint layer are respectively arranged on two opposite sides of the glass plate, wherein the anti-fingerprint layer is arranged on one side surface of the glass plate for forming crystals.

In addition, the embodiment of the application further provides electronic equipment, which comprises a display screen, a control circuit board and the shell in the embodiment, wherein an accommodating space is formed by matching the shell with the display screen, and the control circuit board is arranged in the accommodating space and is electrically connected with the display screen.

According to the preparation method of the anti-dazzle glass, the glass obtained by the method has the ice crystal sand appearance effect, the problem that the anti-dazzle effect of the shell of the electronic equipment is single or even deficient can be solved, the expressive force of the appearance effect of the shell is increased, more choices are pursued for people on beauty, the increasing attractive demands of people on the shell of the electronic equipment can be met to a certain extent, and the competitiveness of the electronic equipment product is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

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

FIG. 2 is a schematic diagram of the positional relationship of a glass substrate to a liquid surface;

FIG. 3 is an antiglare glass surface utilizing the ice crystal sparkling sand effect obtained by the method of FIG. 1;

FIG. 4 is an enlarged schematic view of a partial structure at the surface A of the ice crystal sparkling sand effect antiglare glass of FIG. 3;

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

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

FIG. 7 is a schematic view of a laminated structure of an embodiment of the housing of the present application;

FIG. 8 is a flow chart of an embodiment of a method for manufacturing a 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 schematically illustrating the structural composition of an embodiment of the electronic device of the present application.

Detailed Description

The application is described in further detail below with reference to the drawings and examples. It is specifically noted that the following examples are only for illustrating the present application, but do not limit the scope of the present application. Likewise, the following examples are only some, but not all, of the examples of the present application, and all other examples, which a person of ordinary skill in the art would obtain without making any inventive effort, are within the scope of the present application.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases 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. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

As used herein, an "electronic device" (or simply "terminal") includes, but is not limited to, a device 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, such as for example, 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 configured to communicate through 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, satellites or cellular telephones; a Personal Communications System (PCS) terminal that may combine a cellular radiotelephone with data processing, facsimile and data communications capabilities; a PDA that can include a radiotelephone, pager, internet/intranet access, web browser, organizer, calendar, and/or a Global Positioning System (GPS) receiver; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. The mobile phone is the electronic equipment provided with the cellular communication module.

The application aims to provide an electronic equipment shell with an ice crystal flash 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 preparing 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, etc., which is not limited herein. The preparation method comprises the following steps but is not limited to the following steps. It should be noted that the terms "comprising" and "having," and any variations thereof, in the embodiments of the present application are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may alternatively include other steps or elements not listed or inherent to such process, method, article, or apparatus.

In step S100, the glass substrate is placed in the etching solution at an acute angle to the liquid surface.

In this step, the glass substrate may be panda glass, and the etching solution may be an anti-glare (AG) solution, specifically including solutions composed of various acids, adjuvants, alcohols, etc., and the etching solution is a conventional choice in the art and will not be described in detail herein. The temperature of the etching liquid may be controlled to be 20-30 degrees celsius, for example, about 25 degrees celsius. The glass substrate can be clamped by combining a mechanical arm with a special jig.

Alternatively, in step S100, the angle between the glass substrate and the liquid surface may be 20-40 degrees, such as 20 degrees, 25 degrees, 30 degrees, 32 degrees, 35 degrees, 40 degrees, and so on. Referring to fig. 2, fig. 2 is a schematic diagram of the positional relationship between a glass substrate and a liquid surface, wherein an angle a between a 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 liquid for a preset time to form primary nuclei.

In step S200, the glass substrate 11 may be specifically soaked and placed in the state shown in fig. 2, the preset time for placing may be 20-60S, such as 20S, 30S, 40S, 50S, 55S, and 60S, and the longer the time for placing, the larger the primary crystal nuclei, and the appropriate time for placing may be selected according to specific design requirements.

Step S300, oscillating the glass substrate after forming the primary nucleus in the etching liquid to form the glass surface with the target crystallization effect.

In this step, the glass substrate is maintained in a state of being 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 direction in fig. 2, and primary nuclei are grown by collision nucleation to form an antiglare glass surface of ice crystal flash sand effect. Referring to fig. 3 and 4 together, fig. 3 is an anti-glare glass surface with an ice crystal sparkling sand effect obtained by the preparation method of fig. 1, and fig. 4 is an enlarged schematic view of a partial structure at the anti-glare glass surface a with an ice crystal sparkling sand effect of fig. 3. The ice crystal flash sand effect is characterized in that the roughness is about 3.5um, the haze is about 85 percent, the transmittance is 10-20 percent, and the crystal forms are scattered in leaf shapes.

Alternatively, in the step of oscillating the glass substrate after forming the primary nuclei in the etching liquid to form the glass surface of the target crystallization effect, the duration of the oscillating the glass substrate after forming the primary nuclei in the etching liquid may be 30s to 100s, specifically 30s, 40s, 50s, 55s, 60s, 80s, 100s, etc., and the longer the oscillation time, the larger the crystals, the more remarkable the effect of the ice crystal flash sand formed.

Referring to fig. 5, fig. 5 is a schematic flow chart of another embodiment of a method for preparing anti-glare glass according to the present application; the preparation method in this example 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 put into a profiling jig, and the protective ink with acid resistance (anti-etching liquid) may be uniformly sprayed on the amorphous surface, the thickness may be 15um, and the glass substrate may be baked for 30min at 150 ℃ to form a film.

Step S500, cleaning the glass substrate.

In step S500, washing with water and washing with acid are included. Firstly, washing with water at normal temperature for about 30s, and adding overflow (the water tank is filled with liquid continuously, so as to ensure cleaning). Then acid washing: mixing 10% by mass of mixed acid at about 20deg.C for about 30s, and adding bubbling (HF: H2SO4: HCL=5:3:2). Then washing with water at normal temperature for 30s, which is to add overflow; finally, an AG water washing before etching can be added: the water temperature can be about 20 ℃, the soaking time is about 1min, and overflow is added.

In step S200, the glass substrate 11 may be specifically soaked and placed in the state shown in fig. 2, the preset time for placing may be 20-60S, such as 20S, 30S, 40S, 50S, 55S, and 60S, and the longer the time for placing, the larger the primary crystal nuclei, and the appropriate time for placing may be selected according to specific design requirements. It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present application are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicators are correspondingly changed.

In this step, the glass substrate is maintained in a state of being 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 direction in fig. 2, and primary nuclei are grown by collision nucleation to form an antiglare glass surface of ice crystal flash sand effect. The ice crystal flash sand effect is characterized in that the roughness is about 3.5um, the haze is about 85 percent, the transmittance is 10-20 percent, and the crystal forms are scattered in leaf shapes.

According to the preparation method of the anti-dazzle glass, the ink layer for protecting the etching liquid medicine is formed on the amorphous surface of the glass substrate, so that the protection of the amorphous surface of the glass substrate and the single-sided crystallization effect can be realized. In addition, the cleaning of the crystal face and the satisfaction of the roughness requirement before etching can be ensured by the step of cleaning the glass substrate before AG etching.

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

Step S500, cleaning the glass substrate.

In this step, the glass substrate is maintained in a state of being 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 direction in fig. 2, and primary nuclei are grown by collision nucleation to form an antiglare glass surface of ice crystal flash sand effect.

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

Optionally, a step of cleaning the antiglare glass surface for which the ice crystal sparkling sand effect is formed may be further included before this step. The step of cleaning can specifically comprise the step of throwing the mechanical arm up and down in clean water to throw off superfluous crystals attached to the surface. Sulfuric acid washing may then be performed: soaking in 5% sulfuric acid solution at 25deg.C for 1min to dissolve the rest crystal; then water washing is performed again: washing off residual dilute sulfuric acid solution and cleaning glass. The step of washing may further include a step of removing the ink layer, and specifically, may be a step of immersing in an alkali solution at 60 degrees for 5 minutes.

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

Step S700, performing glass surface ion exchange in a salt solution.

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

According to the preparation method of the anti-dazzle glass, the formed crystal surface is chemically polished by adopting an acid solution on the glass surface with the target crystal effect, so that the definition of the glass for displaying the ice crystal flash sand effect can be improved; in addition, by ion-exchanging the surface of the glass in a salt solution, the overall strength of the glass can be improved.

In addition, referring to fig. 7, fig. 7 is a schematic diagram of a laminated structure of an 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 sheet 103 is formed by the method described in the previous examples; 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 forming crystallization. The appearance film 101 may include a color film, a texture film, and other optical films, and may specifically be attached to the glass plate 103 by an optical adhesive. And the fingerprint-preventing layer 102 may be plated on a side surface of the glass plate 103 where crystals are formed. It should be noted that the terms "first," "second," and "third" in embodiments of the present application are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", and "a third" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

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

Referring to fig. 8, fig. 8 is a flow chart of an embodiment of a method for preparing a shell according to the embodiment of the application, wherein the method for preparing a shell includes, but is not limited to, the following steps.

And S10, cutting.

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

And S20, CNC engraving, namely profiling the appearance of the battery cover according to a drawing, and engraving 4R angles.

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

And S40, hot bending, namely placing the clean glass into a graphite mold for hot bending forming, and finishing the hot bending at the heating temperature of about 680 ℃ and the pressure of about 110KG at the speed of about 40 minutes per batch.

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

Step S60, anti-glare etching. The detailed process of this step is referred to the related description in the foregoing embodiments, and will not be repeated here.

Step S70, sticking the appearance membrane. Specifically, the air bubbles are discharged from the middle to the two sides of the required appearance membrane under vacuum state by a 3d laminating machine, the pressure is about 10kg, and the speed is about 20s per piece.

And S80, plating an anti-fingerprint layer. In the step, the AF pill is evaporated at 120 ℃ by a film plating machine and an umbrella and uniformly attached to the outer surface of the battery cover, so that the battery cover has smooth hand feeling and fingerprint prevention effect.

Step S90, spraying and repairing edges and attaching auxiliary materials; and the battery cover is manufactured.

The shell in the embodiment of the application has the appearance effect of ice crystal flash sand, can solve the problem of single or even deficient anti-dazzle effect of the shell of the electronic equipment, increases the expressive force of the appearance effect of the shell, is a little more choice for people pursuing beauty, can meet the increasing aesthetic demands of people on the shell of the electronic equipment to a certain extent, and improves the competitiveness of the electronic equipment products.

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

Optionally, the display screen 30 cooperates with the housing 10 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 used for controlling the display screen 30 to work. The detailed technical features related to the structures of other parts of the electronic device are within the understanding scope of those skilled in the art, and will not be described herein.

Referring to fig. 10, fig. 10 is a schematic block diagram illustrating the structural components of an electronic device according to an embodiment of the present application, where the electronic device may be a mobile phone, a tablet computer, a notebook computer, a wearable device, etc., and the embodiment illustrates the mobile phone as an example. The structure of the electronic device may include an RF circuit 910, a memory 920, an input unit 930, a display unit 940 (i.e., the display 30 in the above 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 embodiment), a power source 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 to the processor 980; the power supply 990 is used to provide power to the entire electronic device 10.

Specifically, RF circuitry 910 is used to send and receive signals; memory 920 is used to store 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, etc.; the sensor 950 includes an infrared sensor, a laser sensor, etc., for detecting a user proximity signal, a distance signal, etc.; a speaker 961 and a microphone 962 are coupled to the processor 980 by an audio circuit 960 for receiving and transmitting audio signals; the wifi module 970 is configured to receive and transmit wifi signals, and the processor 980 is configured to process data information of the electronic device. For specific structural features of the electronic device, please refer to the related description of the above embodiment, and detailed description thereof will not be provided herein.

The electronic equipment in the embodiment has the appearance effect of ice crystal sand outside the electronic equipment, can solve the problem that the anti-dazzle effect of the electronic equipment casing is single or even deficient, increases the expressive force of the appearance effect of the casing, is more and less selected for people pursuing beauty, can meet the ever-increasing aesthetic demands of people on the electronic equipment casing to a certain extent, and improves the competitiveness of electronic equipment products.

The foregoing description is only a partial embodiment of the present application, and is not intended to limit the scope of the present application, and all equivalent devices or equivalent processes using the descriptions and the drawings of the present application or directly or indirectly applied to other related technical fields are included in the scope of the present application.

Claims

1. A method for preparing anti-glare glass, comprising the steps of:

a step of cleaning a glass substrate, the step of cleaning including cleaning with water and cleaning with acid; specifically, washing with normal temperature water, and adding overflow; then acid washing: the mixed acid with the mass fraction of 10 percent comprises the following components in percentage by weight: h2SO4: hcl=5: 3:2; then washing with water at normal temperature, and adding overflow;

placing the glass substrate in the etching liquid at an acute angle to the liquid level; wherein the angle between the glass substrate and the liquid level is 20-40 degrees;

standing for 20-60s in the etching liquid to form primary crystal nucleus;

and (3) swinging the glass substrate after forming the primary crystal nucleus in the etching liquid for 30s-100s to form the glass surface with the target crystallization effect, wherein the target crystallization effect is characterized by having a roughness of 3.5um, a haze of 85%, a transmittance of 10% -20%, and the crystal forms are arranged in a leaf shape and form an ice crystal sand effect.

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

3. The method according to claim 1, wherein the step of forming the glass surface of the target crystallization effect by oscillating the glass substrate after the primary nuclei are formed in the etching liquid further comprises the steps of: the resulting crystalline surface is chemically polished with an acidic solution.

4. The method of claim 3, further comprising the step of, after said step of chemically polishing the formed crystalline surface with an acidic solution: ion exchange of the glass surface is performed in a salt solution.

5. A housing comprising an appearance film, an anti-fingerprint layer, and a glass sheet formed by the method of any one of claims 1-4; the appearance membrane and the anti-fingerprint layer are respectively arranged on two opposite sides of the glass plate, wherein the anti-fingerprint layer is arranged on one side surface of the glass plate for forming crystals.

6. An electronic device, characterized in that the electronic device comprises a display screen, a control circuit board and the shell according to claim 5, wherein an accommodating space is formed by the shell and the display screen in a matching way, and the control circuit board is arranged in the accommodating space and is electrically connected with the display screen.