CN111204991A - Glass cover plate, strengthening method thereof and electronic equipment - Google Patents
Glass cover plate, strengthening method thereof and electronic equipment Download PDFInfo
- Publication number
- CN111204991A CN111204991A CN202010047197.XA CN202010047197A CN111204991A CN 111204991 A CN111204991 A CN 111204991A CN 202010047197 A CN202010047197 A CN 202010047197A CN 111204991 A CN111204991 A CN 111204991A
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- China
- Prior art keywords
- cover plate
- glass cover
- thickness
- glass
- strengthening
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C21/00—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface
- C03C21/001—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions
- C03C21/002—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions to perform ion-exchange between alkali ions
Abstract
The application provides a glass cover plate, a strengthening method thereof and electronic equipment. The surface of the glass cover plate is coated by the compression stress layer, the thickness of the compression stress layer along the first direction is a first thickness, the thickness of the compression stress layer along the second direction is a second thickness, the first thickness is smaller than the second thickness, and the first direction and the second direction are arranged in a crossed mode. The glass cover plate provided by the application is a secondary chemical strengthening method which is firstly locally strengthened and then integrally strengthened, so that the thickness of the pressure stress layer on the outer surface of the glass cover plate is different in different directions, and thus, the integral internal tensile stress of the strengthened glass can be effectively reduced through the strengthening of regional selectivity, and the impact strength of the glass cover plate is higher.
Description
Technical Field
The application relates to the technical field of tempered glass, in particular to a glass cover plate, a tempering method of the glass cover plate and electronic equipment.
Background
In the chemical strengthening method for glass at the present stage, a glass part is mainly integrally soaked in a chemical solution, and a pressure stress layer is formed on the surface of the glass part through ion exchange, so that the expansion tendency of micro cracks on the surface of the glass is hindered, and the strength of the glass part is improved. Although the surface compressive stress becomes higher as the formed compressive stress layer becomes thicker, an excessively thick compressive stress layer may rather decrease the impact strength of the tempered glass.
Disclosure of Invention
An object of the embodiments of the present application is to provide a glass cover plate with higher overall impact strength, a method for strengthening the glass cover plate, and an electronic device using the glass cover plate, which at least solve the above problems in the prior art, and achieve higher overall impact strength of strengthened glass with different thickness of compressive stress layer in different areas.
In a first aspect of embodiments of the present application, a glass cover plate is presented.
According to the embodiment of the application, the surface of the glass cover plate is coated by the compression stress layer, the thickness of the compression stress layer along the first direction is a first thickness, the thickness of the compression stress layer along the second direction is a second thickness, the first thickness is smaller than the second thickness, and the first direction and the second direction are arranged in a crossed mode.
The glass cover plate provided by the embodiment of the application is a secondary chemical strengthening method which is firstly locally strengthened and then integrally strengthened, so that the thicknesses of the pressure stress layers on the outer surface of the glass cover plate in different directions are different, and thus, the integral internal tensile stress of the strengthened glass can be effectively reduced through the strengthening of regional selectivity, and the impact strength of the glass cover plate is higher.
In a second aspect of the present application, a method of strengthening a glass cover plate is presented.
According to an embodiment of the application, the method comprises: forming a shielding layer on both the first surface and the second surface of the glass substrate; chemically strengthening a first time a third surface of the glass substrate not protected by the masking layer, the third surface disposed around the first surface and the second surface; removing the shielding layer; performing a second chemical strengthening of the first, second, and third surfaces of the glass substrate to obtain the glass cover plate.
By adopting the strengthening method provided by the embodiment of the application, the first chemical strengthening is protected regionally through the shielding layer, and then the whole second chemical strengthening is carried out, so that the pressure stress layers with different depths are arranged at different positions of the strengthened glass, the internal tensile stress of the strengthened glass is not too high, and the risk of breakage under the impact of external force is lower.
In a third aspect of the present application, an electronic device is presented.
According to an embodiment of the present application, the electronic device includes: the glass cover plate; the display device is arranged on one side of the glass cover plate; the shell is arranged on one side, far away from the glass cover plate, of the display device and is connected with the glass cover plate.
The electronic equipment of this application embodiment, its glass apron's impact strength is higher to make electronic equipment's anti falling performance better, and then make electronic equipment's life longer. It will be appreciated by those skilled in the art that the features and advantages described above with respect to the glass cover remain applicable to the electronic device and will not be described in detail herein.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic cross-sectional view of a glass cover plate according to an embodiment of the present application;
FIG. 2 is a schematic flow chart illustrating a method for strengthening a glass cover plate according to one embodiment of the present disclosure;
FIG. 3 is a schematic illustration of a method for strengthening a glass cover plate according to an embodiment of the present application;
fig. 4 is an external view of an electronic device according to an embodiment of the present application.
Reference numerals
100 stress layer
10 glass cover plate
11 glass substrate
111 first surface
112 second surface
113 third surface
200 masking layer
20 display device
30 casing
1 electronic device
Detailed Description
The following examples are presented in detail and are not to be construed as limiting the present application, as those skilled in the art will appreciate. Unless otherwise indicated, specific techniques or conditions are not explicitly described in the following examples, and those skilled in the art may follow techniques or conditions commonly employed in the art or in accordance with the product specifications.
In one aspect of an embodiment of the present application, a glass cover plate is provided.
According to an embodiment of the present application, referring to fig. 1, the surface of the glass cover plate 10 is covered by the compressive stress layer 100, and the thickness of the compressive stress layer 100 along the first direction is a first thickness d1The thickness of the compressive stress layer 100 along the second direction is a second thickness d2And a first thickness d1Is less than the second thickness d2The first direction and the second direction are arranged crosswise, and for example, the first direction and the second direction may be arranged perpendicularly.
In the research process, the inventor of the present application finds that, while the compressive stress layer 100 is formed on the surface of the glass cover plate 10, an internal tensile stress, i.e. an internal expansive force, exists in the part to balance the surface compressive stress, and such an internal tensile stress can increase the risk of breakage of the glass part under stress impact and limit the increase of the surface compressive stress level. Therefore, the inventors of the present application selectively form the compressive stress layers with different thicknesses on the surface of the glass cover plate 10 according to the microcrack state difference at different positions of the glass cover plate, so as to improve the overall impact resistance of the glass cover plate 10.
In some embodiments of the present application, the first direction may be an up-down direction, and the second direction may be a left-right direction. Thus, according to the microcrack state difference between the upper and lower surfaces and the side surfaces of the glass cover plate, the compressive stress layers 100 with different thicknesses are formed on the different surfaces of the glass cover plate, and the thickness of the compressive stress layer on the side surface is larger than that of the compressive stress layers on the upper and lower surfaces, so that the overall impact resistance of the glass cover plate 10 is better.
In some implementations of the present applicationIn the example, the first thickness d1Can be 40-60 micrometers (specifically 50 micrometers for example), and the second thickness d2The thickness of the compressive stress layer 100 in the second direction may be one time to two times of the thickness in the first direction by a chemical strengthening method of a first local strengthening and a second global strengthening, which may be 50 to 120 micrometers (for example, 80 micrometers). Namely, the impact strength of the glass cover plate in the first direction may be 700 to 1200MPa (for example, 950MPa), and the impact strength of the glass cover plate in the second direction may be 500 to 800MPa (for example, 700MPa), so that a compressive stress layer with a corresponding thickness is provided at the most beneficial position, the internal tensile stress of the glass cover plate 10 is not too large, and the risk of breakage of the glass cover plate 10 under the impact of an external force is effectively reduced.
According to an embodiment of the present application, the glass cover plate 10 may include a first surface 111 (e.g., an upper surface), a second surface 112 (e.g., a lower surface), a third surface 113 (e.g., a side surface), and the like, wherein the first surface 111 may be disposed opposite to the second surface 112, and the third surface 113 may be disposed around the first surface 111 and the second surface 112. In some embodiments of the present disclosure, a junction between the third surface 113 and the first surface 111 may be chamfered, and a junction between the third surface 113 and the second surface 112 may also be chamfered, so that each corner of the glass cover plate 10 is ground flat, and the impact resistance of the glass cover plate 10 can be further improved.
In summary, according to the embodiments of the present application, a glass cover plate is provided, in which the thicknesses of the compressive stress layers on the outer surface of the glass cover plate in different directions are different by a secondary chemical strengthening method of first local strengthening and then overall strengthening, so that the internal tensile stress of the whole strengthened glass can be effectively reduced by the zone-selective strengthening, and the impact strength of the glass cover plate is higher.
In another aspect of an embodiment of the present application, a method for strengthening a glass cover plate is provided. According to an embodiment of the present application, referring to fig. 2, the strengthening method includes:
s100: a masking layer is formed on both the first surface and the second surface of the glass substrate.
In this step, the shielding layer 200 is formed on both the first surface 111 and the second surface 112 of the glass substrate 11, wherein the first surface 111 may be the upper surface of the glass substrate 11 and the second surface 112 may be the lower surface of the glass substrate 11. And, the cross-sectional structure schematic diagram of the product obtained in this step can refer to (a) of fig. 3.
In some embodiments of the present application, the material forming the shielding layer 200 may include at least one of resin and ink, so that the shielding layer 200 is formed in a desired pattern on the local areas on the first surface 111 and the second surface 112 by coating or spraying.
S200: a first chemical strengthening of the third surface of the glass substrate not protected by the masking layer is performed.
In this step, the third surface 113 of the glass substrate 11, which is not protected by the shielding layer 200, is subjected to a first chemical strengthening, and the third surface 113 is disposed around the first surface 111 and the second surface 112. And, the cross-sectional structure schematic diagram of the product obtained in this step can refer to (b) of fig. 3.
According to the embodiment of the present application, the specific step of the first chemical strengthening is not particularly limited, such as soaking the glass substrate in a chemical solution for a period of time, wherein the chemical solution includes potassium ions (K)+) Sodium ion (Na) in the glass can be removed+) Displacing to form a compressive stress protective layer on the third surface 113 of the glass substrate.
S300: and removing the shielding layer.
In this step, the masking layer 200 on the surfaces of the first surface 111 and the second surface 112 is removed. And, the cross-sectional structure schematic diagram of the product obtained in this step can refer to (c) of fig. 3. According to an embodiment of the present application, a manner of removing the shielding layer 200 is not particularly limited, and specifically, the shielding layer 200 of the resin or the ink material is removed, for example, by dissolving or peeling the solvent.
S400: and carrying out secondary chemical strengthening on the first surface, the second surface and the third surface of the glass substrate to obtain the glass cover plate.
In this step, the first surface 111, the second surface 112 and the third surface 113 of the glass substrate 11 are subjected to a second chemical strengthening to obtain the glass cover plate 10. And, the cross-sectional structure schematic diagram of the product obtained in this step can refer to (d) of fig. 3.
The specific step of the second chemical strengthening is also not particularly limited, according to embodiments of the present application, such as soaking the glass substrate in a chemical solution for a period of time, wherein the chemical solution includes potassium ions (K)+) Sodium ion (Na) in the glass can be removed+) Displacing, thereby forming a compressive stress layer 110 on all surfaces of the glass substrate.
In some embodiments of the present application, the metal ion species used for the first chemical strengthening may be the same as the metal ion species used for the second chemical strengthening, except that the soaking time in the chemical solution may be different, or the metal ion concentration in the chemical solution used for the first chemical strengthening may be different from that of the second chemical strengthening. Thus, the ratio of the first thickness to the second thickness of the compressive stress layer 110 on the glass cover plate 10 can be effectively controlled.
In summary, according to the embodiments of the present application, a strengthening method is provided, in which a first chemical strengthening is protected regionally by a shielding layer, and then a second chemical strengthening is performed integrally, so that different positions of the strengthened glass have different depths of compressive stress layers, thereby ensuring that the internal tensile stress of the strengthened glass is not too high, and the risk of breakage under external force impact is lower.
In another aspect of an embodiment of the present application, an electronic device is provided.
According to an embodiment of the present application, referring to fig. 4, the electronic apparatus 1 includes the above-described glass cover plate 10, the display device 20, and the housing 30; wherein, the display device 20 is arranged at one side of the glass cover plate 10; the housing 30 is disposed on a side of the display device 20 away from the glass cover 100, and the housing 30 is connected to the glass cover 10.
According to the embodiment, the specific type of the electronic device is not particularly limited, specifically, for example, a mobile phone, a tablet computer, a smart watch, and the like, and those skilled in the art may select the electronic device according to the specific application of the electronic device, which is not described herein again. It should be noted that the electronic device includes other necessary components and structures besides the above-mentioned glass cover plate, display device and housing, for example, a mobile phone, specifically, such as a processor, a memory, a battery, a circuit board, a camera, etc., and those skilled in the art can design and supplement the electronic device accordingly according to the specific type of the electronic device, and details are not repeated herein.
In summary, according to the embodiments of the present application, an electronic device is provided, in which the glass cover plate has higher impact strength, so that the electronic device has better drop resistance, and the service life of the electronic device is longer. It will be appreciated by those skilled in the art that the features and advantages described above with respect to the glass cover remain applicable to the electronic device and will not be described in detail herein.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.
Claims (10)
1. The glass cover plate is characterized in that the surface of the glass cover plate is coated by a compression stress layer, the thickness of the compression stress layer along a first direction is a first thickness, the thickness of the compression stress layer along a second direction is a second thickness, the first thickness is smaller than the second thickness, and the first direction and the second direction are arranged in a crossed mode.
2. The glass cover sheet according to claim 1, wherein the first thickness is 40 to 60 microns.
3. The glass cover sheet according to claim 1, wherein the second thickness is 50 to 120 microns.
4. The glass cover plate according to claim 2, wherein the impact strength of the glass cover plate in the first direction is 700 to 1200 MPa.
5. The glass cover plate according to claim 3, wherein the impact strength of the glass cover plate in the second direction is 500 to 800 MPa.
6. A method of strengthening a glass cover plate, comprising:
forming a shielding layer on both the first surface and the second surface of the glass substrate;
chemically strengthening a first time a third surface of the glass substrate not protected by the masking layer, the third surface disposed around the first surface and the second surface;
removing the shielding layer;
performing a second chemical strengthening of the first, second, and third surfaces of the glass substrate to obtain the glass cover plate.
7. The reinforcing method according to claim 6, wherein a material forming the shielding layer includes at least one of a resin and an ink.
8. The method of claim 6, wherein the first chemical strengthening and the second chemical strengthening are performed by chemical solution soaking.
9. The method of claim 7, wherein the metal ion species used for the first chemical strengthening is the same as the metal ion species used for the second chemical strengthening.
10. An electronic device, comprising:
the glass cover plate according to any one of claims 1 to 5;
the display device is arranged on one side of the glass cover plate;
the shell is arranged on one side, far away from the glass cover plate, of the display device and is connected with the glass cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010047197.XA CN111204991A (en) | 2020-01-16 | 2020-01-16 | Glass cover plate, strengthening method thereof and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010047197.XA CN111204991A (en) | 2020-01-16 | 2020-01-16 | Glass cover plate, strengthening method thereof and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111204991A true CN111204991A (en) | 2020-05-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010047197.XA Pending CN111204991A (en) | 2020-01-16 | 2020-01-16 | Glass cover plate, strengthening method thereof and electronic equipment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112592075A (en) * | 2020-12-15 | 2021-04-02 | 昆山国显光电有限公司 | Glass cover plate, glass cover plate manufacturing method and electronic equipment |
| CN112851140A (en) * | 2021-01-22 | 2021-05-28 | 昆山国显光电有限公司 | Glass cover plate manufacturing method, glass cover plate and display module |
| TWI768698B (en) * | 2021-01-28 | 2022-06-21 | 大陸商業成科技（成都）有限公司 | Cover plate for display device and manufacturing method thereof |
| WO2022149512A1 (en) * | 2021-01-06 | 2022-07-14 | Ａｇｃ株式会社 | Glass sheet, display device, and glass sheet manufacturing method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010168270A (en) * | 2008-12-26 | 2010-08-05 | Hoya Corp | Glass substrate and method for manufacturing the same |
| JP2013249216A (en) * | 2012-05-30 | 2013-12-12 | Asahi Glass Co Ltd | Chemically strengthened glass with touch sensor, and display device |
| CN103476727A (en) * | 2011-03-16 | 2013-12-25 | 苹果公司 | Controlled chemical strengthening of thin glass |
| CN105814004A (en) * | 2013-10-14 | 2016-07-27 | 康宁股份有限公司 | Ion exchange process and chemically strengthened glass substrates resulting therefrom |
| CN106630680A (en) * | 2016-12-29 | 2017-05-10 | 四川旭虹光电科技有限公司 | High-aluminum-silicon cover glass and preparation method thereof |
| CN109748518A (en) * | 2017-11-02 | 2019-05-14 | 深圳市东丽华科技有限公司 | A kind of strengthened glass and its manufacturing method |
-
2020
- 2020-01-16 CN CN202010047197.XA patent/CN111204991A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010168270A (en) * | 2008-12-26 | 2010-08-05 | Hoya Corp | Glass substrate and method for manufacturing the same |
| CN103476727A (en) * | 2011-03-16 | 2013-12-25 | 苹果公司 | Controlled chemical strengthening of thin glass |
| JP2013249216A (en) * | 2012-05-30 | 2013-12-12 | Asahi Glass Co Ltd | Chemically strengthened glass with touch sensor, and display device |
| CN105814004A (en) * | 2013-10-14 | 2016-07-27 | 康宁股份有限公司 | Ion exchange process and chemically strengthened glass substrates resulting therefrom |
| CN106630680A (en) * | 2016-12-29 | 2017-05-10 | 四川旭虹光电科技有限公司 | High-aluminum-silicon cover glass and preparation method thereof |
| CN109748518A (en) * | 2017-11-02 | 2019-05-14 | 深圳市东丽华科技有限公司 | A kind of strengthened glass and its manufacturing method |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112592075A (en) * | 2020-12-15 | 2021-04-02 | 昆山国显光电有限公司 | Glass cover plate, glass cover plate manufacturing method and electronic equipment |
| CN112592075B (en) * | 2020-12-15 | 2022-03-25 | 昆山国显光电有限公司 | Glass cover plate, glass cover plate manufacturing method and electronic equipment |
| WO2022149512A1 (en) * | 2021-01-06 | 2022-07-14 | Ａｇｃ株式会社 | Glass sheet, display device, and glass sheet manufacturing method |
| CN112851140A (en) * | 2021-01-22 | 2021-05-28 | 昆山国显光电有限公司 | Glass cover plate manufacturing method, glass cover plate and display module |
| CN112851140B (en) * | 2021-01-22 | 2022-09-23 | 昆山国显光电有限公司 | Glass cover plate manufacturing method, glass cover plate and display module |
| TWI768698B (en) * | 2021-01-28 | 2022-06-21 | 大陸商業成科技（成都）有限公司 | Cover plate for display device and manufacturing method thereof |
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Application publication date: 20200529 |