CN108277463A - The preparation method of glass back cover and glass back cover - Google Patents
The preparation method of glass back cover and glass back cover Download PDFInfo
- Publication number
- CN108277463A CN108277463A CN201810089936.4A CN201810089936A CN108277463A CN 108277463 A CN108277463 A CN 108277463A CN 201810089936 A CN201810089936 A CN 201810089936A CN 108277463 A CN108277463 A CN 108277463A
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- China
- Prior art keywords
- glass
- back cover
- plating layer
- glass plates
- film plating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000011521 glass Substances 0.000 title claims abstract description 139
- 238000002360 preparation method Methods 0.000 title claims abstract description 22
- 238000007747 plating Methods 0.000 claims abstract description 76
- 230000002745 absorbent Effects 0.000 claims abstract description 11
- 239000002250 absorbent Substances 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 22
- 238000005516 engineering process Methods 0.000 claims description 20
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 13
- ZKATWMILCYLAPD-UHFFFAOYSA-N niobium pentoxide Chemical compound O=[Nb](=O)O[Nb](=O)=O ZKATWMILCYLAPD-UHFFFAOYSA-N 0.000 claims description 10
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 8
- 229910052681 coesite Inorganic materials 0.000 claims description 8
- 229910052906 cristobalite Inorganic materials 0.000 claims description 8
- 238000000869 ion-assisted deposition Methods 0.000 claims description 8
- 239000000377 silicon dioxide Substances 0.000 claims description 8
- 238000004544 sputter deposition Methods 0.000 claims description 8
- 229910052682 stishovite Inorganic materials 0.000 claims description 8
- 229910052905 tridymite Inorganic materials 0.000 claims description 8
- 238000004506 ultrasonic cleaning Methods 0.000 claims description 8
- 239000011347 resin Substances 0.000 claims description 7
- 229920005989 resin Polymers 0.000 claims description 7
- 229910052710 silicon Inorganic materials 0.000 claims description 5
- 239000010703 silicon Substances 0.000 claims description 5
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 4
- 229910052593 corundum Inorganic materials 0.000 claims description 4
- 239000010432 diamond Substances 0.000 claims description 4
- 229910003460 diamond Inorganic materials 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 4
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 4
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 4
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 9
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000004134 energy conservation Methods 0.000 abstract description 3
- 239000011248 coating agent Substances 0.000 description 15
- 238000000576 coating method Methods 0.000 description 15
- 230000000694 effects Effects 0.000 description 13
- 238000005240 physical vapour deposition Methods 0.000 description 8
- 238000009826 distribution Methods 0.000 description 4
- 230000000873 masking effect Effects 0.000 description 4
- 238000012216 screening Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 238000013003 hot bending Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000009738 saturating Methods 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910003978 SiClx Inorganic materials 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/34—Sputtering
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/0015—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterized by the colour of the layer
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/08—Oxides
- C23C14/083—Oxides of refractory metals or yttrium
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/10—Glass or silica
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/14—Metallic material, boron or silicon
- C23C14/18—Metallic material, boron or silicon on other inorganic substrates
- C23C14/185—Metallic material, boron or silicon on other inorganic substrates by cathodic sputtering
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/34—Sputtering
- C23C14/46—Sputtering by ion beam produced by an external ion source
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Signal Processing (AREA)
- Surface Treatment Of Glass (AREA)
- Laminated Bodies (AREA)
Abstract
The present invention provides a kind of glass back covers, it includes 3D glass plates, the film plating layer being connect with the 3D glass plates and the shielding layer being connect far from 3D glass plates side with the film plating layer, the size and the size of mobile terminal rear cover of the 3D glass plates match, the film plating layer includes the dielectric layer of multilayer light transmission, and the shielding layer is made of nonconducting light absorbent.The present invention also provides a kind of preparation methods of glass back cover comprising：Molded 3D glass plates are provided；In the inner surface plating layer of the 3D glass plates；Shielding layer is plated in side of the film plating layer far from the 3D glass plates；The finished product of the glass back cover is obtained, color can be presented in the finished product.The preparation method of glass back cover and glass back cover provided by the invention, simple for process, product yield is high, and energy conservation and environmental protection.
Description
【Technical field】
The present invention relates to glass product decoration technology field more particularly to the preparation sides of a kind of glass back cover and glass back cover
Method.
【Background technology】
5G technologies are gradually molded, and with the arrival in 5G epoch, radio band will become increasingly complex, and the requirement to signal is also got over
Come higher.Antenna for mobile phone is typically mounted at mobile phone back, and traditional metal shell has the defect to mobile phone signal shielding, therefore
For the protection to signal, it is desirable that mobile phone avoids using metal back cover as possible, and glass is then at optimal selection.
In the related technology, cell phone rear cover is made of 3D glass, and film plating layer is arranged on glass, and light occurs for the film plating layer
Wave interference obtains multicoloured effect, and reaches ideal by the way that opaque ink layer is arranged on the surface of film plating layer
Screening effect.
However, ink substantially contains resin material, weatherability is poor, is easy discoloration, does not also meet the theory of environmental protection, and
The realization tedious process of such scheme, cost are higher.
Therefore, it is really necessary to provide a kind of new glass back cover and preparation method thereof to solve above-mentioned technical problem.
【Invention content】
The preparation side of the purpose of the present invention is to provide a kind of processes glass back cover and glass back cover simple, of good performance
Method.
In order to achieve the above object, include 3D glass plates with inner surface, complete the present invention provides a kind of glass back cover
Inner surface described in all standing and the shielding layer made of nonconducting light absorbent are located in the 3D glass plates and the masking
Between layer and the film plating layer that is connect respectively with the 3D glass plates and the shielding layer of both sides, the size of the 3D glass plates and shifting
The size of dynamic terminal rear cover matches, and the inner surface is the one side close to mobile terminal internal element, the ruler of the film plating layer
It is very little identical as the size of the shielding layer comprising the dielectric layer of multilayer light transmission.
Preferably, the thickness of the film plating layer is 100~500nm, the material of the dielectric layer include SiO2, Al2O3,
It is one or more in TiO2, Nb2O5, Si3N4.
Preferably, the film plating layer includes the Nb2O5 dielectric layers being alternately coated with successively and SiO2 dielectric layers.
Preferably, the thickness of the shielding layer is 200~1000nm, and the material of the shielding layer is selected from silicon, silicon carbide, contains
It is one or more in hydrogen diamond.
Preferably, the glass back cover further include both sides connect respectively with the 3D glass and the film plating layer it is explosion-proof
Film, the rupture pressure disc are made of PET resin material.
Preferably, the centre and edge of the 3D glass plates all use cambered design.
The present invention also provides a kind of preparation methods of glass back cover comprising following steps：
Step 1：Pretreatment, provides molded 3D glass plates, and it is clear that the inner surface of the 3D glass plates is carried out ultrasonic wave
It washes and dries, the size and the size of mobile terminal rear cover of the 3D glass plates match；
Step 2：Plating layer, in the inner surface plating layer of the 3D glass plates, the film plating layer includes multilayer light transmission
Dielectric layer；
Step 3：Shielding layer is plated, shielding layer, the shielding layer are plated in one side of the film plating layer far from the 3D glass plates
It is made of nonconducting light absorbent；
Step 4：The finished product of the glass back cover is obtained, color can be presented in the finished product.
Preferably, the film plating layer is coated with using sputter coating technology or Ion-assisted deposition technology.
Preferably, the shielding layer is coated with using sputter coating technology or Ion-assisted deposition technology.
The present invention also provides a kind of preparation methods of glass back cover comprising following steps：
Step 1：Feed, provides rupture pressure disc, and the rupture pressure disc ultrasonic cleaning and dry, the rupture pressure disc by
PET resin material is made；
Step 2：Plating layer, in the surface plating layer of the rupture pressure disc, the film plating layer includes Jie of multilayer light transmission
Matter layer；
Step 3：Plate shielding layer, shielding layer plated in one side of the film plating layer far from the rupture pressure disc, the shielding layer by
Nonconducting light absorbent is made；
Step 4：Pretreatment, provides molded 3D glass plates, and the 3D glass plates are carried out ultrasonic cleaning and are dried
Dry, the size and the size of mobile terminal rear cover of the 3D glass plates match；
Step 5：Side of the rupture pressure disc far from the film plating layer, is fitted in the inner surface of the 3D glass by fitting,
The finished product of the glass back cover is obtained, color can be presented in the finished product.
Compared with the relevant technologies, the preparation method of glass back cover of the invention and glass back cover is come by using film plating layer
Reach colored effect, and realize the purpose of masking by shielding layer, the film plating layer and the shielding layer are not lead
The material of electricity, does not influence the performance of mobile terminal antenna；The film plating layer and the shielding layer using sputter coating technology and/or
Ion-assisted deposition technology is coated with, and process is simple, cost-effective, product yield is high；In addition, it is not necessary that ink coating, disappears
Influence in addition to ink to glass back cover finished color effect is conducive to physical vapour deposition (PVD) (Physical
VaporDeposition, PVD) toning and colour stability, and energy conservation and environmental protection.
【Description of the drawings】
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing, wherein：
Fig. 1 is the structural decomposition diagram of the glass back cover described in the embodiment of the present invention one；
Fig. 2 is the structural schematic diagram of the glass back cover described in the embodiment of the present invention one；
Fig. 3 is the spectrogram of the glass back cover described in the embodiment of the present invention one；
Fig. 4 is the spectrogram of the glass back cover described in the embodiment of the present invention two；
Fig. 5 is the structural schematic diagram of the glass back cover described in the embodiment of the present invention three；
Fig. 6 is the flow chart of the preparation method of the glass back cover described in the embodiment of the present invention four；
Fig. 7 is the flow chart of the preparation method of the glass back cover described in the embodiment of the present invention five；
【Specific implementation mode】
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that the described embodiments are merely a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
Embodiment one
Please refer to Fig.1 and Fig. 2, the present invention provides a kind of glass back cover 100 comprising 3D glass plates 1, with the 3D glass
The film plating layer 2 that plate 1 connects and the shielding layer 3 being connect far from 1 side of 3D glass plates with the film plating layer 2.
The 3D glass plates 1 are made on the basis of traditional 2D glass of hot bending process, and among it and edge all uses
Cambered design is that currently the only preferably and curve screens fitting, and can have frivolous, clean, anti-dazzle, weatherability good etc. excellent
The hard substance of different speciality.The size and the size of mobile terminal rear cover of the 3D glass plates 1 match, and the 3D glass plates 1 wrap
Inner surface 11 is included, the inner surface 11 is the one side close to mobile terminal internal element.
In the present embodiment, the film plating layer 2 is directly coated on the inner surface 11, and the inner surface is completely covered
11, the film plating layer 2 includes the dielectric layer 21 of multilayer light transmission, and the effect of the film plating layer 2 is that color is presented, specifically, multilayer
Optical interference occurs for the dielectric layer 21, and a variety of colors can be obtained, and the thickness of the dielectric layer 21 and the type of material are different,
The color that the film plating layer 2 is presented also differs.
Preferably, the thickness of the film plating layer 2 is 100~500nm, and the material of the dielectric layer includes SiO2、Al2O3、
TiO2、Nb2O5、Si3N4In it is one or more.
The shielding layer 3 is made of nonconducting light absorbent, is coated on the film plating layer 2 far from the 3D glass plates 1
Side, and the film plating layer 2 is completely covered.The shielding layer 3 is used to cover the light inside mobile terminal, reaches ideal
Screening effect, meet later stage mobile terminal assembling requirement.Preferably, the thickness of the shielding layer 3 is 200~1000nm,
Its material selected from silicon, silicon carbide, containing one or more in hydrogen diamond, chemical property is stablized, not easily to fall off.
Specifically, the present embodiment provides a kind of glass back cover 100, coating structure distribution is as shown in table 1：
The coating structure distribution table of 1 glass back cover of table
Referring to Fig. 3, the color that the glass back cover 100 is presented is blue, characteristic is as shown in table 2：
The finished product characteristic table of 2 glass back cover of table
| L* | 70.1 |
| a* | -6.9 |
| b* | -45.2 |
| Average transmittance (%) | 55.8 |
| Average reflectance (%) | 2.9 |
| Resistivity (Ω/) | 10E10 |
Embodiment two
The present embodiment and the distinguishing feature of embodiment one are：The present embodiment provides a kind of glass back cover 200, platings
Membrane structure distribution is as shown in table 3：
The coating structure distribution table of 3 glass back cover of table
Referring to Fig. 4, the color that the glass back cover 200 is presented is red, characteristic is as shown in table 4：
The finished product characteristic table of 4 glass back cover of table
| L* | 72.2 |
| a* | 45.4 |
| b* | -2.9 |
| Average transmittance (%) | 57.2 |
| Average reflectance (%) | 1.4 |
| Resistivity (Ω/) | 10E10 |
Embodiment three
Referring to Fig. 5, the present invention provides a kind of glass back cover 300 comprising 3D glass plates 10 connect with the glass plate 10
The rupture pressure disc 20 that connects, the film plating layer 30 being connect far from 3D glass plates side with the rupture pressure disc and with the film plating layer
30 shielding layers 40 far from the connection of 20 side of the rupture pressure disc.
The 3D glass plates 10 are made on the basis of traditional 2D glass of hot bending process, and among it and edge all uses
Cambered design is that currently the only preferably and curve screens fitting, and can have frivolous, clean, anti-dazzle, weatherability good etc. excellent
The hard substance of different speciality.The size and the size of mobile terminal rear cover of the 3D glass plates 10 match, the 3D glass plates 10
Including inner surface, the inner surface is the one side close to mobile terminal internal element.
The rupture pressure disc 20 is bonded setting with the inner surface of the 3D glass plates, and the rupture pressure disc 20 is by PET resin material
It is made, smooth surface is glossy, it is easy to accomplish follow-up coating operation, moreover, the rupture pressure disc 20 is within the scope of wider temperature
With excellent physical mechanical property, temperature is used for a long time up to 120 DEG C, and creep resistance, fatigue durability, rub resistance,
Dimensional stability is all fine.
The film plating layer 30 is directly coated on one side of the rupture pressure disc 20 far from the 3D glass plates 10, and is completely covered
The rupture pressure disc 20, the film plating layer 30 include the dielectric layer 301 of multilayer light transmission, and the effect of the film plating layer 30 is that face is presented
A variety of colors, thickness, the material of the dielectric layer 301 can be obtained specifically, optical interference occurs for dielectric layer 301 described in multilayer in color
The type of material is different, and the color that the film plating layer 30 is presented also differs.
Preferably, the thickness of the film plating layer 30 is 100~500nm, and the material of the dielectric layer 301 includes SiO2、
Al2O3、TiO2、Nb2O5、Si3N4In it is one or more.
The shielding layer 40 is made of nonconducting light absorbent, for covering the light inside mobile terminal, meets
The requirement of later stage mobile terminal assembling.Preferably, the thickness of the shielding layer 40 is 200~1000nm, and material is selected from silicon, carbon
SiClx, containing one or more in hydrogen diamond.The shielding layer 40 can directly be coated on the film plating layer 30 far from described
The one side of rupture pressure disc 20, and the film plating layer 30 is completely covered, the i.e. shielding layer 40 are directly toward mobile terminal internal element,
Reach ideal screening effect.And the masking 40 is made of silicon, silicon carbide or hydrogeneous diamond-like materials, and chemical property is steady
It is fixed, it is not easily to fall off.
The film plating layer 30 and the shielding layer 40 can be into a single integrated structure with the rupture pressure disc 20, and by the rupture pressure disc 20
Side far from the film plating layer 30 is directly attached on the 3D glass plates, obtains the finished product of the glass back cover 300.
Example IV
Referring to Fig. 6, the present embodiment provides a kind of preparation methods of glass back cover 100 comprising following steps：
S1：Pretreatment, provides molded 3D glass plates 1, and it is clear that the inner surface 11 of the 3D glass plates is carried out ultrasonic wave
It washes and dries, the size and the size of mobile terminal rear cover of the 3D glass plates 1 match.
11 performance of inner surface of the 3D glass plates 1 quality of plated film is influenced it is very big, need to the inner surface 11 into
Row pretreatment.Ultrasonic cleaning is using cavitation, acceleration effect and the direct flow effect of ultrasonic wave in a liquid to liquid
With dirt directly, indirectly effect, make crud layer by dispersion, emulsification, stripping and reach cleaning purpose.The inner surface 11 cleans
Afterwards, it is dried through nitrogen, removes the moisture on the inner surface, be convenient for the coating of subsequent plating layer.
S2：Plating layer 2, in the 11 plating layer 2 of inner surface of the 3D glass plates 1, the film plating layer 2 includes that multilayer is saturating
The dielectric layer 21 of light.
S3：Shielding layer 3 is plated, shielding layer 3, the shielding layer are plated in one side of the film plating layer 2 far from the 3D glass plates 1
3 are made of nonconducting light absorbent；
The step S2 and the step S3 are completed in coating machine, and the environment of the coating machine is set as：
0.005Pa.The preparation process of the glass back cover 100 is specially：
The 1 Ion Cleaning 3min of 3D glass plates for obtaining the step S1 in coating machine, using using sputter coating skill
Art and/or Ion-assisted deposition technology are alternately coated with certain thickness Nb successively in the inner surface 11 of the 3D glass plates2O5
Dielectric layer and SiO2Dielectric layer is finally coated with Si shielding layers.
Step S4：The finished product of the glass back cover 100 is obtained, color can be presented in the finished product.
The color that the glass back cover 100 is presented is blue.
Embodiment five
Referring to Fig. 7, the present embodiment provides a kind of preparation methods of glass back cover 300 comprising following steps：
S10：Feed, provides rupture pressure disc 20, and the rupture pressure disc 20 is carried out ultrasonic cleaning and is dried, the rupture pressure disc 20
It is made of PET resin material；
The rupture pressure disc 20 is made of PET resin material, and smooth surface is glossy, it is easy to accomplish follow-up coating operation, and
And the rupture pressure disc 20 has excellent physical mechanical property within the scope of wider temperature, and temperature is used for a long time up to 120
DEG C, and creep resistance, fatigue durability, rub resistance, dimensional stability are all fine.
S20：Plating layer 30, in the surface plating layer 30 of the rupture pressure disc 20, the film plating layer 30 includes that multilayer is saturating
The dielectric layer 301 of light；
S30：Shielding layer 40 is plated, shielding layer 40, the screening are plated in one side of the film plating layer 30 far from the rupture pressure disc 20
Layer 40 is covered to be made of nonconducting light absorbent；
The step S20 and the step S30 are completed in coating machine, and the environment of the coating machine is set as：
0.005Pa.The preparation process of the glass back cover 300 is specially：
The 20 Ion Cleaning 3min of rupture pressure disc for obtaining the step S10 in coating machine, using using sputter coating skill
Art and/or Ion-assisted deposition technology are alternately coated with Nb successively on the surface of rupture pressure disc 202O5Dielectric layer and SiO2Medium
Layer, is finally coated with Si shielding layers.
S40：Pretreatment, provides molded 3D glass plates 10, and the 3D glass plates 10 are carried out ultrasonic cleaning and are dried
Dry, the size and the size of mobile terminal rear cover of the 3D glass plates 10 match；
S50：Side of the rupture pressure disc 20 far from the film plating layer 30, is fitted in the interior table of the 3D glass 10 by fitting
Face, obtains the finished product of the glass back cover 300, and color can be presented in the finished product.
The step S50 avoids and directly carries out coating operation on the 3D glass plates 10, reduces risk, increases
The success rate of product is added.
Compared with the relevant technologies, the preparation method of glass back cover of the invention and glass back cover is come by using film plating layer
Reach colored effect, and realize the purpose of masking by shielding layer, the film plating layer and the shielding layer are not lead
The material of electricity, does not influence the performance of mobile terminal antenna；The film plating layer and the shielding layer using sputter coating technology and/or
Ion-assisted deposition technology is coated with, and process is simple, cost-effective, product yield is high；In addition, it is not necessary that ink coating, disappears
Influence in addition to ink to glass back cover finished color effect is conducive to physical vapour deposition (PVD) (Physical
VaporDeposition, PVD) toning and colour stability, and energy conservation and environmental protection.
Above-described is only embodiments of the present invention, it should be noted here that for those of ordinary skill in the art
For, without departing from the concept of the premise of the invention, improvement can also be made, but these belong to the protection model of the present invention
It encloses.
Claims (11)
1. a kind of glass back cover is suitable for mobile terminal, which is characterized in that including with 3D glass plates, the covering 3D glass
Plate surface and the shielding layer made of nonconducting light absorbent are located between the 3D glass plates and the shielding layer and two
The film plating layer that side is connect with the 3D glass plates and the shielding layer respectively, size and the mobile terminal rear cover of the 3D glass plates
Size match；The size of the film plating layer is identical as the size of the shielding layer comprising the dielectric layer of multilayer light transmission.
2. glass back cover according to claim 1, which is characterized in that the shielding layer and the film plating layer are provided only on institute
3D glass plates are stated close to the side of mobile terminal internal element.
3. glass back cover according to claim 1, which is characterized in that the thickness of the film plating layer is 100~500nm, institute
The material for stating dielectric layer includes SiO2、Al2O3、TiO2、Nb2O5、Si3N4In it is one or more.
4. glass back cover according to claim 3, which is characterized in that the film plating layer includes the Nb being alternately coated with successively2O5
Dielectric layer and SiO2Dielectric layer.
5. glass back cover according to claim 1, which is characterized in that the thickness of the shielding layer is 200~1000nm, institute
State the material of shielding layer selected from silicon, silicon carbide, containing one or more in hydrogen diamond.
6. glass back cover according to claim 1, which is characterized in that the glass back cover further include both sides respectively with it is described
The rupture pressure disc that 3D glass is connected with the film plating layer, the rupture pressure disc are made of PET resin material.
7. glass back cover according to claim 1, which is characterized in that the centre and edge of the 3D glass plates all use arc
Shape designs.
8. a kind of preparation method of such as claim 1-7 any one of them glass back covers, which is characterized in that including walking as follows
Suddenly：
Step 1：Pretreatment, provides molded 3D glass plates, and the inner surface of the 3D glass plates is carried out ultrasonic cleaning simultaneously
Drying, the size and the size of mobile terminal rear cover of the 3D glass plates match；
Step 2：Plating layer, in the inner surface plating layer of the 3D glass plates, the film plating layer includes Jie of multilayer light transmission
Matter layer；
Step 3：Shielding layer is plated, plates shielding layer in one side of the film plating layer far from the 3D glass plates, the shielding layer is not by
Conductive light absorbent is made；
Step 4：The finished product of the glass back cover is obtained, color can be presented in the finished product.
9. the preparation method of glass back cover according to claim 8, which is characterized in that the film plating layer uses sputter coating
Technology or Ion-assisted deposition technology are coated with.
10. the preparation method of glass back cover according to claim 8, which is characterized in that the shielding layer is plated using sputtering
Membrane technology or Ion-assisted deposition technology are coated with.
11. a kind of preparation method of glass back cover, which is characterized in that include the following steps：
Step 1：Feed, provides rupture pressure disc, and the rupture pressure disc is carried out ultrasonic cleaning and is dried, the rupture pressure disc is by PET trees
Fat material is made；
Step 2：Plating layer, in the surface plating layer of the rupture pressure disc, the film plating layer includes the medium of multilayer light transmission
Layer；
Step 3：Shielding layer is plated, plates shielding layer in one side of the film plating layer far from the rupture pressure disc, the shielding layer is not by leading
The light absorbent of electricity is made；
Step 4：Pretreatment, provides molded 3D glass plates, and the 3D glass plates are carried out ultrasonic cleaning and are dried, institute
The size and the size of mobile terminal rear cover for stating 3D glass plates match；
Step 5：Side of the rupture pressure disc far from the film plating layer, is fitted in the inner surface of the 3D glass, obtained by fitting
Color can be presented in the finished product of the glass back cover, the finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810089936.4A CN108277463B (en) | 2018-01-30 | 2018-01-30 | Glass rear cover and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810089936.4A CN108277463B (en) | 2018-01-30 | 2018-01-30 | Glass rear cover and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN108277463A true CN108277463A (en) | 2018-07-13 |
| CN108277463B CN108277463B (en) | 2020-03-20 |
Family
ID=62805829
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810089936.4A Expired - Fee Related CN108277463B (en) | 2018-01-30 | 2018-01-30 | Glass rear cover and preparation method thereof |
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| Country | Link |
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| CN109809706A (en) * | 2019-03-27 | 2019-05-28 | 深圳创维－Rgb电子有限公司 | The preparation method of 3D glass television base, TV and 3D glass television base |
| CN109991829A (en) * | 2019-05-08 | 2019-07-09 | 东莞得利钟表有限公司 | One kind can self-cleaning superhard glass watchcase and preparation method thereof |
| CN110891380A (en) * | 2018-09-10 | 2020-03-17 | 北京小米移动软件有限公司 | Electronic equipment shell machining method and electronic equipment |
| CN110891379A (en) * | 2018-09-10 | 2020-03-17 | 北京小米移动软件有限公司 | Electronic equipment shell machining method and electronic equipment |
| CN111099838A (en) * | 2019-12-30 | 2020-05-05 | 华为技术有限公司 | Curved glass cover plate and preparation method and terminal thereof |
| CN113365448A (en) * | 2020-03-04 | 2021-09-07 | Oppo广东移动通信有限公司 | Manufacturing method of shell assembly, shell assembly and electronic equipment |
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