CN110248001A - Electronic product glass back cover and preparation method thereof and electronic product - Google Patents
Electronic product glass back cover and preparation method thereof and electronic product Download PDFInfo
- Publication number
- CN110248001A CN110248001A CN201810194672.9A CN201810194672A CN110248001A CN 110248001 A CN110248001 A CN 110248001A CN 201810194672 A CN201810194672 A CN 201810194672A CN 110248001 A CN110248001 A CN 110248001A
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- China
- Prior art keywords
- film
- line
- electronic product
- decorative pattern
- back cover
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
-
- 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
-
- 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
- H04M1/0277—Details of the structure or mounting of specific components for a printed circuit board assembly
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Laminated Bodies (AREA)
Abstract
The present invention relates to Electronic products manufacturing fields, disclose a kind of electronic product glass back cover and preparation method thereof and electronic product, wherein, the electronic product glass back cover includes glass matrix and what is be successively bonded from inside to outside on the glass matrix have decorative pattern film and line film, wherein, route is printed on the outer surface of the line film.This method can make the optical cement being fitted in decorative pattern film escape injury, so that the method that the performance of optical cement is unaffected and the present invention uses is simple to operation, and the wire sizes of this method production are accurate.
Description
Technical field
The present invention relates to Electronic products manufacturing fields, and in particular to a kind of electronic product glass back cover and preparation method thereof and
Electronic product.
Background technique
CN107248618A (application number 201710283861.9) discloses a kind of decorative membrance, is attached at Transparent Parts (glass
Glass layer), the decorative membrance includes adhesive layer, substrate (being equivalent to PET film layer) and conductive layer (being equivalent to antenna stack), the base
Material includes the first side being oppositely arranged and second side, and the adhesive layer is located at first side and for pasting the decorative membrance
Together in the surface of the Transparent Parts, the conductive layer is located at described second side and is antenna.This kind of technology has the drawback that: day
Line is to be formed by directly printing electrically conductive ink in decorative membrance using baking is dry.
CN106785389A (application number 201611135535.5) discloses a kind of side that antenna is made in glass back cover
Method and glass back cover with antenna.Wherein, conductive photoreceptor slurry is sprayed on the protection ink layer of glass back cover and is formed leads
The conductive paste bed of material is portrayed as antenna loop, and is covered in antenna loop with insulating coating by the plasma-based bed of material；Electrocondution slurry will be coated with
Rear cover 10-30min is toasted at 100-150 DEG C, can just portray antenna loop.
CN205355245U (application number 201521040020.8) discloses a kind of mobile phone glass rear cover printed antenna,
In, it is formed by printed antenna route including being printed on the inside of glass back cover by conductive silver paste, the printed antenna route
End contact and interior of mobile phone line contact connect and formed tool transmitting, receive semiotic function antenna for mobile phone.In addition, also having
Body discloses the printed antenna route formed on the completely black ink barrier layer being printed on the inside of glass back cover with conductive silver paste, finally
The broken end contact for being covered with top coat layer on printed antenna route, but retaining printed antenna route be exposed to it is outer, end contact with
The antenna for mobile phone that interior of mobile phone line contact is connected and to form transmitting, receives semiotic function.
The prior art is all that directly conductive circuit either applies conduction in the glass back cover for carrying out protection ink
Slurry carves antenna loop, and disadvantage (1) is that printing is either carved on 3D curved surface, and difficulty is big, and size is not accurate；(2) printing is led
Electric line either prints electrocondution slurry, and all needing entire glass back cover to toast in 100-150 DEG C could dry, this is to being used for
It is fitted with decorative pattern and the OCA of the PET film of ink is protected to have injury, influence the performance of OCA glue.
Therefore, how preparing size, accurately route and enabling to is fitted with decorative pattern and protects ink
The mobile phone glass rear cover that the OCA in PET film escaped injury be printed with route also needs further to research and develop.
Summary of the invention
The purpose of the invention is to overcome the above problem of the existing technology, a kind of electronic product glass back cover is provided
And preparation method thereof and electronic product, this method the optical cement OCA being fitted in decorative pattern film can be made to escape injury, made
Optical cement OCA performance such as adhesive force and light transmittance be unaffected and the present invention uses screen printing mode printed wire,
This method is simple to operation, and the wire sizes of this method production are accurate.
To achieve the goals above, first aspect present invention provides a kind of electronic product glass back cover, wherein the electronics
Product glass back cover includes glass matrix and what is be successively bonded from inside to outside on the glass matrix have decorative pattern film
And line film, wherein be printed with route on the outer surface for having line film.
Second aspect of the present invention provides a kind of production method of electronic product glass back cover, wherein this method include with
Lower step:
(1) it is provided with decorative pattern film, has decorative pattern film to be attached on the surface of glass matrix for described；
(2) it is provided with joint adhesive film, then the printed wire on the surface of the joint adhesive film is heat-treated,
Line film is obtained, being then attached to the line film described has on the surface of decorative pattern film.
Third aspect present invention provides a kind of electronic product glass back cover being prepared by method described above.
The fourth aspect of the present invention provides a kind of electronic product, wherein the electronic product includes electricity described above
The electronic product glass back cover that sub- product glass back cover or method described above are prepared.
Through the above technical solutions, the present invention does not make route on having decorative pattern film, have in other
Route is made on the film of joint adhesive, that is, the present invention will print line film and handle at a temperature of 100-150 DEG C, energy
Enough avoid the OCA glue in decorative pattern film by high temperature injury, so that the performance such as adhesive force and light transmittance of optical cement OCA glue
It is unaffected.If either first first being made on having decorative pattern film on the contrary, making route on having decorative pattern film
Route, then conform on glass matrix；Or first there is decorative pattern film adhered to after forming one on glass matrix, then
Have and make route on decorative pattern film, require route could be solidified after 100 DEG C of -150 DEG C of Temperature Treatments, and has dress
The optical cement OCA glue on patterned thin film is adornd after 100 DEG C of -150 DEG C of Temperature Treatments (baking), will affect the adhesive force of OCA glue
And light transmittance.
In addition, there is duplicature knot by the electronic product glass back cover for being printed with route that method of the invention is prepared
Structure, that is, by the electronic product glass back cover for being printed with route that method of the invention is prepared include having of stacking together
Decorative pattern film and line film；Electronic product glass back cover with double membrane structure of the invention can make have decoration line
OCA in the film of road escapes injury, so that the performance such as adhesive force and light transmittance of optical cement OCA glue are unaffected.
In addition, the present invention is by screen printing mode printed wire, this method is simple to operation, and the line of this method production
Road size is accurate.
Detailed description of the invention
The drawings are intended to provide a further understanding of the invention, and constitutes part of specification, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of joint adhesive film；
Fig. 2 is the structural schematic diagram of line film；
Fig. 3 is the structural schematic diagram for having decorative pattern film；
Fig. 4 is that the release film for having decorative pattern film is removed the structural schematic diagram to fit afterwards with glass matrix；
Fig. 5 is that have decorative pattern film to fit after the removing with release film of the line film after removing release film
Structural schematic diagram；
Fig. 6 is the schematic diagram of electronic product glass back cover.
Description of symbols
1, glass matrix
2, there is decorative pattern film
20, the second substrate 21, protection ink layer
22, decorative pattern layer 23, OCA glue-line
24, release film
3, line film
30, first base material 31, route
32, glue-line 33, release film are bonded
Specific embodiment
The endpoint of disclosed range and any value are not limited to the accurate range or value herein, these ranges or
Value should be understood as comprising the value close to these ranges or value.For numberical range, between the endpoint value of each range, respectively
It can be combined with each other between the endpoint value of a range and individual point value, and individually between point value and obtain one or more
New numberical range, these numberical ranges should be considered as specific open herein.
To achieve the goals above, first aspect present invention provides a kind of electronic product glass back cover, such as Fig. 1-6 institute
Show, which includes glass matrix 1 and what is be successively bonded from inside to outside on the glass matrix 1 have dress
Adorn patterned thin film 2 and line film 3, wherein be printed with route 31 on the outer surface of the line film 3.
In electronic product glass back cover of the present invention, route 31 belongs to a part of line film 3, is located at route
On the outer surface of film 3.
In the present invention, the present inventor is found surprisingly that: route is not made on the film 2 for having decorative pattern,
But route is made on the other film for having joint adhesive, then, it is heat-treated line film 3 is printed, in this way, energy
Enough so that the optical cement OCA being fitted in the film 2 of decorative pattern and protection ink escapes injury, so that optical cement OCA glue
Performance such as adhesive force and light transmittance is unaffected, and effect is fine.
According to the present invention, described to there is joint adhesive film to be not particularly limited, for example, as shown in Figure 1, described have joint adhesive thin
Film may include first base material 30, the fitting glue-line 32, Yi Jiyu on the one of surface for being formed in the first base material 30
The release film 33 that the fitting glue-line 32 is bonded.Wherein, the fitting glue-line 32 has the performance of high temperature resistance.
According to the present invention, the line film 3 can have the formation of the upper surface of joint adhesive film described, for example, such as Fig. 2 institute
Show, the line film 3 may include first base material 30,31 and of route being formed on a surface of the first base material 30
The fitting glue-line 32 being formed on another surface of the first base material 30, the line film 3 pass through the fitting glue-line
32 have decorative pattern film 2 to be bonded with described.Fitting glue-line 32 has the performance of high temperature resistance, and route 31 is printed on joint adhesive
On 32 joint adhesive film, using heat treatment, avoid in decorative pattern film 2 OCA optical cement through Overheating Treatment and by
Injury, so that the performance such as adhesive force and light transmittance of optical cement OCA glue are unaffected.
In the preferred case, ink layer is additionally provided between the first base material 30 and the route 31.The ink layer
Protection and interception can be played.The color of the ink layer can be black.
In the present invention, it is preferred to which the first base material can be any one in PET material and PI material.
According to the present invention, then the route 31 can be heat-treated and be formed with electrocondution slurry by silk-screen printing
's.In the present invention, by screen printing mode printed wire, this method is simple to operation, and the route ruler of this method production
It is very little accurate.Wherein, method for printing screen is the routine techniques of the prior art, and details are not described herein.
According to the present invention, the electrocondution slurry can be the mixture of nano particle silver powder and resin and binder；For
Make the wire sizes of production more accurate, effect is more preferable, under preferable case, using the electrocondution slurry of 100 parts by weight as base
Standard, the content of the nano particle silver powder are 70-85 parts by weight, and the content of the resin is 15-30 parts by weight and described viscous
The content for tying agent is 3-4 parts by weight；In more preferable situation, on the basis of the electrocondution slurry of 100 parts by weight, the nanometer
The content of grain silver powder is 75-85 parts by weight, and the content of the resin is that the content of 15-25 weight and the binder is
3.5-4 parts by weight.
According to the present invention, the resistivity of the electrocondution slurry can be 8.0 × 10-8-10×10-8Ωm；Preferably 8.0 ×
10-8-9.0×10-8Ωm；In the present invention, the resistivity of the electrocondution slurry is limited within above range, is can reduce
Signal transmission attenuation.
According to the present invention, the viscosity of the electrocondution slurry can be 300-400cps, preferably 300-350cps, in this hair
In bright, the viscosity of the electrocondution slurry is limited within above range, can be that printing effect is more preferable, resistivity is more stable.
According to the present invention, described to there is decorative pattern film 2 to be not particularly limited, as long as described have 2 energy of decorative pattern film
Enough be affixed with the glass matrix 1 is combined, for example, as shown in figure 3, described have the decorative pattern film 2 to may include
Protection ink layer 21, decorative pattern layer 22, the second substrate 20 and the OCA glue-line 23 stacked gradually from outside to inside, it is described to have decoration
Patterned thin film 2 is bonded by the OCA glue-line 23 with the glass matrix 1；Preferably, second substrate be PET material and
Any one in PI material；In the present invention, the texture protection ink can be black, to better play protection decoration
Lines and interception；In the present invention, the decorative pattern layer be UV transfer lines after vacuum it is coated, allow glass back cover more
Beautiful, gorgeous, fashion.
In the case of, according to the invention it is preferred to, the route 31 is antenna traces.In this case, the electronic product
Glass back cover includes glass matrix 1 and what is be successively bonded from inside to outside on the glass matrix 1 have 2 He of decorative pattern film
There is antenna traces film, wherein be printed with antenna traces on the outer surface for having antenna traces film.
In the present invention, the electronic product can be the various electronic products such as mobile phone, ipad, watch, preferably hand
Machine.
The second aspect of the present invention provides a kind of production method of electronic product glass back cover, wherein this method includes
Following steps:
(1) it is provided with decorative pattern film 2, it will be on the surface that there is decorative pattern film 2 to be attached to glass matrix 1；
(2) it is provided with joint adhesive film, then the printed wire 31 on the surface of the joint adhesive film carries out hot place
Reason, obtains line film 3, and being then attached to the line film 3 described has on the surface of decorative pattern film 2.
According to the method for the present invention, in step (1), described to have decorative pattern film 2 may include from outside to inside successively
Protection ink layer 21, decorative pattern layer 22, the second substrate 20 and the OCA glue-line 23 of stacking.
According to the method for the present invention, in step (1), before implementing to attach, the OCA for having decorative pattern film 2
Release film 24 is stained on glue-line 23；During implementing to attach, needs first to tear the release film 24, then have dress for described
The OCA glue-line 23 of decorations patterned thin film 2 is fitted on the surface of the glass matrix 1.In the present invention, release film can play guarantor
Protect the effect of joint adhesive and OCA glue.Fig. 4 shows to remove the release film for having decorative pattern film 2 and be affixed afterwards with glass matrix 1
The structural schematic diagram of conjunction.
According to the method for the present invention, the material of the glass matrix 1 can be strengthened glass.
According to the method for the present invention, in step (2), the line film 3 may include first base material 30, be formed in institute
The joint adhesive stating the route 31 on a surface of first base material 30 and being formed on another surface of the first base material 30
Layer 32.In the preferred case, ink layer is also formed between the first base material 30 and the route 31.The ink layer can
Play protection and interception.The color of the ink layer can be black.
According to the method for the present invention, in step (2), before implementing to attach, the fitting glue-line 32 of the line film 3
On be stained with release film；During implementing to attach, need first to tear the release film, then by the patch of the line film 3
Conjunction glue-line 32 has on decorative pattern film 2 described in being fitted in, for example, as shown in Figure 5.
According to the method for the present invention, in step (1), printed wire 31 may include: electrocondution slurry is printed on it is described
On the surface for having joint adhesive film, then it is heat-treated.The mode of the printing is the conventional selection that can be this field, excellent
Selection of land, being printed on electrocondution slurry by way of silk-screen printing described has on the surface of joint adhesive film.
According to the method for the present invention, the resistivity of the electrocondution slurry is 8 × 10-8-10×10-8Ωm；
Preferably, the electrocondution slurry is the mixed slurry containing nano particle silver powder, resin and binder；
Preferably, in the electrocondution slurry, on the basis of the electrocondution slurry of 100 parts by weight, the nano particle
The dosage of silver powder is 70-85 parts by weight, and the dosage of the resin is 15-30 parts by weight, and the dosage of the binder is 3-4 weight
Part；In more preferable situation, on the basis of the electrocondution slurry of 100 parts by weight, the dosage of the nano particle silver powder is 75-85
Parts by weight, the content of the resin are that the content of 15-25 weight and the binder is 3.5-4 parts by weight.
According to the method for the present invention, in step (1), the implementation condition of the heat treatment may include: that temperature is 100-
150 DEG C, time 30-50min；In order to keep made wire sizes more accurate, under preferable case, temperature is 100-135 DEG C,
Time is 40-50min.
In the case of with the method for the invention it is preferred to, this method further includes by the fitting glue-line 32 of the line film 3
Have on decorative pattern film 2 described in being fitted in, and the OCA glue-line 23 for having decorative pattern film 2 is fitted in the glass
On the surface of glass matrix 1, de-bubble processing is carried out, for example, de-bubble can be carried out, by way of extruding to keep the route thin
The fitting glue-line 32 of film 3 be fitted in it is described have on decorative pattern film 2, and by the OCA glue-line for having decorative pattern film 2
23 are fitted on the surface of the glass matrix 1 tightlier, and light transmittance is higher, form one, as shown in Figure 6.
In the case of with the method for the invention it is preferred to, in step (2), printed on the surface of the joint adhesive film
Then antenna traces are heat-treated, antenna traces film has been obtained, and then to have antenna traces film to be attached to described by described
On the surface for having decorative pattern film 2；That is, the route is antenna traces.
Third aspect present invention provides a kind of electronic product glass back cover being prepared by method described above.
The fourth aspect of the present invention provides a kind of electronic product, wherein the electronic product includes above-mentioned electronic product
Glass back cover.In the present invention, the electronic product can be the various electronic products such as mobile phone, ipad, watch, preferably hand
Machine.
In the method for the invention, the present inventor is found surprisingly that: printing line film 3 in 100-150
Handled at a temperature of DEG C, can dexterously make to be fitted with decorative pattern and protect optical cement OCA in the film 2 of ink from
Injury, so that the performance such as adhesive force and light transmittance of optical cement OCA glue are unaffected.If on the contrary, there is decorative pattern film 2
Upper production route either first first makes route on having decorative pattern film 2, then conforms on glass matrix 1；Or first handle
There is decorative pattern film 2 to fit on glass matrix 1 after formation one, then make route on having decorative pattern film 2, all needs
Route could be solidified after 100 DEG C of -150 DEG C of Temperature Treatments, and have the optical cement OCA glue warp on decorative pattern film 2
After crossing 100 DEG C of -150 DEG C of Temperature Treatments (baking), the adhesive force and light transmittance of OCA glue will affect.
The present invention will be described in detail by way of examples below.
Embodiment 1
(1) by the nano particle silver powder of 70 parts by weight, the binder of the resin of 26 parts by weight and 4 parts by weight is mixed
To electrocondution slurry, wherein the resistivity of the electrocondution slurry is 10 × 10-8Ω m, the viscosity average out to 375cps of electrocondution slurry；
(2) as shown in Fig. 2, electrocondution slurry is printed on the film with joint adhesive by silk-screen printing, also,
The film 3 for being printed with antenna traces 31 that processing 40min is obtained is carried out at a temperature of 135 DEG C；
(3) as shown in figure 4, by the rear cover 1 for the strengthened glass for fitting to mobile phone with decorative pattern film 2；
(4) as shown in figure 5, the film 3 for being printed with antenna traces 31 that step (2) obtains is had dress with step (3)
Decorations patterned thin film 2 fits together.
As a result the mobile phone glass rear cover S1 for being printed with antenna traces 31 is obtained, as shown in Figure 6；Mobile phone glass rear cover S1 tool
Have by the film that is printed with antenna traces and the film adhered double membrane structure that is formed together with decorative pattern.
Embodiment 2
Cover printed antenna route 31 after mobile phone glass in the same manner as shown in Example 1, institute the difference is that,
By the nano particle silver powder of 75 parts by weight, the binder of the resin of 21.5 parts by weight and 3.5 parts by weight is mixed to get conductive paste
Material, wherein the resistivity of the electrocondution slurry is 9 × 10-8Ω m, the viscosity average out to 325cps of electrocondution slurry.
As a result the mobile phone glass rear cover S2 for being printed with antenna traces 31 is obtained；The mobile phone glass rear cover S2 has by being printed with
The film of antenna traces and the film adhered double membrane structure of formation together with decorative pattern.
Embodiment 3
Cover printed antenna route after mobile phone glass in the same manner as shown in Example 1, institute the difference is that, will
The binder of the nano particle silver powder of 81 parts by weight, the resin of 15 parts by weight and 4 parts by weight is mixed to get electrocondution slurry,
In, the resistivity of the electrocondution slurry is 8 × 10-8Ω m, the viscosity average out to 325cps of electrocondution slurry.
As a result the mobile phone glass rear cover S3 for being printed with antenna traces 31 is obtained；The mobile phone glass rear cover S3 has by being printed with
The film of antenna traces and the film adhered double membrane structure of formation together with decorative pattern.
Embodiment 4
Cover printed antenna route 31 after mobile phone glass in the same manner as shown in Example 1, institute the difference is that,
Processing 50min is carried out at a temperature of 100 DEG C.
As a result the mobile phone glass rear cover S4 for being printed with antenna traces 31 is obtained；The mobile phone glass rear cover S4 has by being printed with
The film of antenna traces and the film adhered double membrane structure of formation together with decorative pattern.
Embodiment 5
The present embodiment indicates that the method for the invention for covering printed antenna route after mobile phone glass and by the party
What method obtained is printed with the mobile phone glass rear cover of antenna traces.
Cover printed antenna route 31 after mobile phone glass in the same manner as shown in Example 1, institute the difference is that,
Processing 30min is carried out at a temperature of 150 DEG C.
As a result the mobile phone glass rear cover S5 for being printed with antenna traces 31 is obtained；The mobile phone glass rear cover S5 has by being printed with
The film of antenna traces and the film adhered double membrane structure of formation together with decorative pattern.
Comparative example 1
Cover printed antenna route 31 after mobile phone glass in the same manner as shown in Example 1, institute the difference is that,
Electrocondution slurry is printed on the film with joint adhesive not over silk-screen printing, but passes through silk-screen printing for electrocondution slurry
It is printed on on decorative pattern film 2.
As a result the mobile phone glass rear cover D1 for being printed with antenna traces 31 is obtained.
Comparative example 2
Cover printed antenna route 31 after mobile phone glass in the same manner as shown in Example 1, institute the difference is that,
By the nano particle silver powder of 65 parts by weight, the binder of the resin of 32 parts by weight and 3 parts by weight is mixed to get electrocondution slurry,
Wherein, the resistivity of the electrocondution slurry is 12 × 10-8Ω m, the viscosity of electrocondution slurry are 400-450cps.
As a result the mobile phone glass rear cover D2 for being printed with antenna traces is obtained.
Test case 1
Mobile phone glass the rear cover S1-S5 and D1-D2 that embodiment 1-5 and comparative example 1-2 are prepared carry out cohesive force survey
Examination.
The test method of cohesive force: testing film width is 25mm, and peeling direction is to use with 180 ° of glass parallel direction
Steady pulling force is peeled off, test speed 300mm/min.
The test result of cohesive force is as described in Table 1.
Test case 2
Mobile phone glass the rear cover S1-S5 and D1-D2 that embodiment 1-5 and comparative example 1-2 are prepared carry out light transmittance survey
Examination.
The test method of light transmittance: it will be stripped down with OCA glue on decorative pattern film and be placed on transmission measurement instrument
On, optical wavelength is transferred to 550nm and tests its light transmittance.
The test result of light transmittance is as described in Table 1.
Table 1
| Cohesive force (unit, MPa) | Light transmittance (unit, %) | |
| Embodiment 1 | 30.848 | 94.75 |
| Embodiment 2 | 29.715 | 94.97 |
| Embodiment 3 | 30.641 | 94.56 |
| Embodiment 4 | 29.512 | 94.25 |
| Embodiment 5 | 30.796 | 94.80 |
| Comparative example 1 | 23.473 | 88.94 |
| Comparative example 2 | 23.844 | 89.02 |
Wherein, embodiment 1-5 is the film with decorative pattern, which directly tests its OCA glue not through overbaking
Cohesive force and light transmittance.
Wherein, comparative example 1-2 is the film with decorative pattern after 135 DEG C of oven cooking cycle 30min, surveys its OCA glue
Cohesive force and light transmittance.
From from 1 test data of table it can be seen that with decorative pattern film after 135 DEG C of oven cooking cycle 30min,
The cohesive force and light transmittance of OCA glue all significantly decrease.
In addition, pass through embodiment 1-5 and comparative example 1-2 it is found that the present invention is by screen printing mode printed wire, and
And route 31 is made not instead of on having decorative pattern film 2, route 31 is made on the other film for having joint adhesive,
Then, it is heat-treated line film 3 is printed, so that being fitted with the optics in the film 2 of decorative pattern and protection ink
Glue OCA escapes injury, so that the performance such as adhesive force and light transmittance of optical cement OCA glue are unaffected, and passes through silk-screen printing
Mode printed wire, this method is simple to operation, and the wire sizes of this method production are accurate；In addition, by method of the invention
The electronic product glass back cover for being printed with route being prepared has double membrane structure.
The preferred embodiment of the present invention has been described above in detail, and still, the present invention is not limited thereto.In skill of the invention
In art conception range, can with various simple variants of the technical solution of the present invention are made, including each technical characteristic with it is any its
Its suitable method is combined, and it should also be regarded as the disclosure of the present invention for these simple variants and combination, is belonged to
Protection scope of the present invention.
Claims (19)
1. a kind of electronic product glass back cover, which is characterized in that the electronic product glass back cover include glass matrix (1) and
What is be successively bonded from inside to outside on the glass matrix (1) has decorative pattern film (2) and line film (3), wherein the line
Route (31) are printed on the outer surface of road film (3).
2. electronic product glass back cover according to claim 1, wherein the line film (3) includes first base material
(30), the route (31) that is formed on a surface of the first base material (30) and it is formed in the another of the first base material (30)
Fitting glue-line (32) on one surface, the line film (3) have decorative pattern with described by the fitting glue-line (32)
Film (2) fitting.
3. electronic product glass back cover according to claim 2, wherein in the first base material (30) and the route
(31) ink layer is additionally provided between.
4. electronic product glass back cover according to claim 2 or 3, wherein the route (31) is logical with electrocondution slurry
Silk-screen printing is crossed, is then heat-treated and is formed.
5. electronic product glass back cover according to claim 4, wherein the resistivity of the electrocondution slurry is 8 × 10-8-
10×10-8Ωm；
Preferably, the electrocondution slurry is the mixed slurry containing nano particle silver powder, resin and binder；
It is highly preferred that in the electrocondution slurry, on the basis of the electrocondution slurry of 100 parts by weight, the nano particle silver
The content of powder is 70-85 parts by weight, and the content of the resin is 15-30 parts by weight, and the content of the binder is 3-4 weight
Part.
6. electronic product glass back cover according to claim 1, wherein described to have decorative pattern film (2) include from outer
It is described to have to the interior protection ink layer (21) stacked gradually, decorative pattern layer (22), the second substrate (20) and OCA glue-line (23)
Decorative pattern film (2) is bonded by the OCA glue-line (23) with the glass matrix (1).
7. electronic product glass back cover according to claim 1, wherein the route (31) is antenna traces.
8. a kind of preparation method of electronic product glass back cover, which is characterized in that method includes the following steps:
(1) decorative pattern film (2) are provided with, by the surface for thering is decorative pattern film (2) to be attached to glass matrix (1)
On；
(2) it is provided with joint adhesive film, printed wire (31), is then heat-treated on the surface of the joint adhesive film,
Line film (3) are obtained, being then attached to the line film (3) described has on the surface of decorative pattern film (2).
9. according to the method described in claim 8, wherein, in step (1), described to have decorative pattern film (2) include from outer
To the interior protection ink layer (21) stacked gradually, decorative pattern layer (22), the second substrate (20) and OCA glue-line (23).
10. described to have decorative pattern before implementing to attach in step (1) according to the method described in claim 9, wherein
Release film (24) are stained on the OCA glue-line (23) of film (2)；During implementing to attach, need first to tear the release film
(24), then the OCA glue-line (23) for having decorative pattern film (2) is fitted on the surface of the glass matrix (1).
11. according to the method described in claim 8, wherein, in step (2), the line film (3) includes first base material
(30), the route (31) that is formed on a surface of the first base material (30) and it is formed in the another of the first base material (30)
Fitting glue-line (32) on one surface.
12. according to the method for claim 11, wherein go back shape between the first base material (30) and the route (31)
At there is ink layer.
13. method according to claim 11 or 12, wherein in step (2), before implementing to attach, the route
Release film is stained on the fitting glue-line (32) of film (3)；During implementing to attach, need first to tear the release film, so
The fitting glue-line (32) of the line film (3), which is fitted in, afterwards described has on decorative pattern film (2).
14. the method according to any one of claim 8-13, wherein in step (2), the mistake of printed wire (31)
Journey are as follows: being printed on electrocondution slurry by silk-screen printing described has on the surface of joint adhesive film.
15. according to the method for claim 14, wherein the resistivity of the electrocondution slurry is 8 × 10-8-10×10-8Ωm；
Preferably, the electrocondution slurry is the mixed slurry containing nano particle silver powder, resin and binder；
It is highly preferred that in the electrocondution slurry, on the basis of the electrocondution slurry of 100 parts by weight, the nano particle silver
The dosage of powder is 70-85 parts by weight, and the dosage of the resin is 15-30 parts by weight, and the dosage of the binder is 3-4 weight
Part.
16. according to the method for claim 14, wherein the implementation condition of the heat treatment includes: that temperature is 100-150
DEG C, time 30-50min.
17. the electronic product glass back cover for asking method described in any one of 8-16 to be prepared as right.
18. a kind of electronic product, which is characterized in that the electronic product includes described in any one of claim 1-7 and 17
Electronic product glass back cover.
19. electronic product according to claim 18, wherein the electronic product is mobile phone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810194672.9A CN110248001B (en) | 2018-03-09 | 2018-03-09 | Electronic product glass rear cover and preparation method thereof and electronic product |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810194672.9A CN110248001B (en) | 2018-03-09 | 2018-03-09 | Electronic product glass rear cover and preparation method thereof and electronic product |
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| Publication Number | Publication Date |
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| CN110248001A true CN110248001A (en) | 2019-09-17 |
| CN110248001B CN110248001B (en) | 2021-08-10 |
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| CN106785389A (en) * | 2016-12-09 | 2017-05-31 | 蓝思科技（长沙）有限公司 | The method and the glass back cover with antenna of antenna are made in glass back cover |
| CN206789693U (en) * | 2017-05-10 | 2017-12-22 | 上海德门电子科技有限公司 | A kind of film type antenna |
| CN206911687U (en) * | 2017-05-02 | 2018-01-23 | 比亚迪股份有限公司 | Glass decoration film, ambetti and electronic product |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1169095A (en) * | 1996-05-14 | 1997-12-31 | 卡西欧计算机株式会社 | Antennas and their making methods and electronic devices or timepieces with same antennas |
| CN103813663A (en) * | 2012-11-05 | 2014-05-21 | 仁宝电脑工业股份有限公司 | Assembling method of shell of electronic device and combination of shell |
| CN205355245U (en) * | 2015-12-14 | 2016-06-29 | 东莞华清光学科技有限公司 | Lid printed antenna behind cell -phone glass |
| CN106785389A (en) * | 2016-12-09 | 2017-05-31 | 蓝思科技（长沙）有限公司 | The method and the glass back cover with antenna of antenna are made in glass back cover |
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| CN110248001B (en) | 2021-08-10 |
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