CN113472923B - Mobile phone rear cover with transparent antenna and preparation method thereof - Google Patents
Mobile phone rear cover with transparent antenna and preparation method thereof Download PDFInfo
- Publication number
- CN113472923B CN113472923B CN202110713969.3A CN202110713969A CN113472923B CN 113472923 B CN113472923 B CN 113472923B CN 202110713969 A CN202110713969 A CN 202110713969A CN 113472923 B CN113472923 B CN 113472923B
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- CN
- China
- Prior art keywords
- layer
- antenna
- mobile phone
- transparent antenna
- rear cover
- 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.)
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- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 239000010410 layer Substances 0.000 claims abstract description 110
- 239000011521 glass Substances 0.000 claims abstract description 58
- 239000012790 adhesive layer Substances 0.000 claims abstract description 54
- 239000000853 adhesive Substances 0.000 claims abstract description 21
- 230000001070 adhesive effect Effects 0.000 claims abstract description 21
- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 12
- 239000000758 substrate Substances 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 229910052709 silver Inorganic materials 0.000 claims description 4
- 239000004332 silver Substances 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000004049 embossing Methods 0.000 claims description 3
- 239000012939 laminating adhesive Substances 0.000 abstract 1
- 239000003292 glue Substances 0.000 description 12
- 239000000463 material Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
-
- 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
- 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
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/364—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith using a particular conducting material, e.g. superconductor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
Abstract
The invention discloses a mobile phone rear cover capable of placing a transparent antenna and a preparation method thereof, the mobile phone rear cover comprises a glass layer and an antenna layer which are connected through an adhesive layer, the antenna layer comprises a hardening layer, a UV adhesive layer and a transparent antenna which are sequentially stacked, the transparent antenna is formed on the side surface of the UV adhesive layer connected with the glass layer, through holes are formed in the glass layer and the adhesive layer corresponding to the feeding positions of the transparent antenna, and conductive adhesive is filled in the through holes to connect the transparent antenna and a radio frequency transmission line arranged on the outer surface of the glass layer. According to the invention, the transparency of the antenna positioned on the mobile phone glass rear cover is realized, and the antenna design space can be greatly improved; through printing out netted net slot first, laminating adhesive layer, the glass layer that has the through-hole again, the preparation of lid behind the realization area transparent antenna's the cell-phone, the transparent antenna's in the lid is placed behind the realization cell-phone that can be better provides the guarantee for the signal of cell-phone.
Description
Technical Field
The invention relates to the technical field of mobile phones, in particular to a mobile phone rear cover with a transparent antenna and a preparation method thereof.
Background
Along with the increasing requirement of people on the screen occupation rate, the full-screen mobile phone gradually occupies the mobile phone market, but other parts of the full-screen mobile phone occupy the original antenna space, and the popularization of the 5G communication technology greatly increases the number of mobile phone antennas, so that the space for placing the antennas in the mobile phone is seriously insufficient, the efficiency of the mobile phone antennas is lower than the reference line of 35%, and the challenges brought by the mobile phone antennas to engineers are increasingly increased.
The preparation method of the mobile phone rear cover with the transparent antenna is different from the existing preparation method of the mobile phone rear cover, and the transparent antenna cannot be well placed by adopting the original preparation method of the mobile phone rear cover, so that the signal of the mobile phone is influenced.
Disclosure of Invention
The invention aims to provide a mobile phone rear cover with a transparent antenna and a preparation method thereof, so as to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The utility model provides a lid behind cell-phone of taking transparent antenna, includes glass layer and the antenna layer of being connected through the bonding glue film, the antenna layer is including hardening layer, UV glue film, the transparent antenna of laminating in proper order setting, the UV glue film with be formed with transparent antenna on the side that the glass layer links to each other, the through-hole has been seted up to glass layer, bonding glue film correspond transparent antenna's feed position, the intussuseption of through-hole is filled with conductive adhesive and is connected transparent antenna and set up the radio frequency transmission line on the glass layer surface.
As a further scheme of the invention: and camera holes with the same size are formed in the same positions of the glass layer, the adhesive layer, the hardening layer and the UV adhesive layer.
As a further scheme of the invention: the conductive adhesive is conductive silver adhesive.
As a further scheme of the invention: the transparent antenna is arranged on the UV adhesive layer and close to the bottom end side, the transparent antenna is of a net-shaped grid structure, the line width of the transparent antenna is 1-20 mu m, and the transparent antenna is made of conductive silver adhesive.
The method for manufacturing the mobile phone rear cover with the transparent antenna according to any one of the above steps is characterized by comprising the following steps:
Providing a PET substrate layer, forming a UV adhesive layer on one side of the PET substrate layer, embossing grid grooves on the surface of the UV adhesive layer near the bottom, filling conductive silver paste into the grooves to form transparent antennas, and baking and curing to obtain an antenna layer;
Bonding a bonding adhesive layer provided with a through hole on one side of the antenna layer provided with the conductive adhesive, wherein the through hole of the bonding adhesive layer corresponds to the feeding position of the transparent antenna;
cutting the antenna layer bonded with the adhesive layer into the shape of the mobile phone rear cover;
providing a glass layer cut into the shape of the mobile phone rear cover, forming a through hole at the position of the glass layer corresponding to the transparent antenna, and performing hot press bonding on the cut glass layer with the through hole and the cut antenna layer through an adhesive layer;
Filling conductive silver paste into the through holes of the bonding adhesive layer and the glass layer, baking and solidifying, stripping the PET substrate layer, coating the surface of the UV adhesive layer from which the PET substrate layer is stripped to form a hardened layer, and fixing the radio frequency transmission line at the conductive adhesive of the through holes on the outer side surface of the glass layer to obtain the rear cover of the mobile phone for placing the transparent antenna.
As a further scheme of the invention: the thickness of the UV adhesive layer is 5-10 mu m, the thickness of the bonding adhesive layer is 15-35 mu m, the thickness of the hardening layer is 2-10 mu m, and the thickness of the glass layer is 0.5-1 mm.
As a further scheme of the invention: the diameter of the through hole of the glass layer is 0.1-0.6 mm, and the diameter of the through hole of the bonding adhesive layer is 0.3-0.5 mm longer than the diameter of the through hole of the glass layer.
As a further scheme of the invention: and a conductive adhesive disc is formed at the port of the through hole at the outer side of the glass layer and is used for fixedly connecting a radio frequency transmission line.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, through the arrangement of the through holes, the antenna is led to the rear cover of the mobile phone, and the transparent antenna adopts the design of the net-shaped grid, so that the transparency of the antenna positioned on the rear cover of the glass of the mobile phone is realized, the design space of the antenna can be greatly improved, the loss generated when a signal penetrates through the glass of the rear cover can be reduced, the sensitivity of the antenna of the mobile phone is improved, the efficiency of the antenna of the mobile phone is increased, and the efficiency of the antenna of the mobile phone can reach the required antenna efficiency datum line; the preparation method has the advantages that the mesh grooves are printed out firstly, then the bonding adhesive layer and the glass layer with the through holes are attached, the problem of connection with an external antenna is solved, the preparation of the mobile phone rear cover with the transparent antenna is realized, and the placement of the transparent antenna in the mobile phone rear cover can be better realized under the condition that the original texture and strength of the rear cover are ensured, so that the signal of the mobile phone is ensured, and the problem of insufficient design space of the mobile phone antenna is greatly improved.
Drawings
FIG. 1 is a top view of the present invention;
FIG. 2 is an enlarged view of B in FIG. 1;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 1;
fig. 4 is an enlarged view of C in fig. 3.
In the figure: 1-adhesive layer, 2-glass layer, 3-antenna layer, 31-hardening layer, 32-UV adhesive layer, 33 transparent antenna, 34-through hole, 35-conductive adhesive, 4-radio frequency transmission line, 5-camera hole.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-4, in an embodiment of the present invention, a rear cover of a mobile phone with a transparent antenna includes a glass layer 2 and an antenna layer 3 connected by an adhesive layer 1, where the antenna layer includes a hardened layer 31, a UV adhesive layer 32, and a transparent antenna 33 that are sequentially stacked, a transparent antenna is formed on a side surface of the UV adhesive layer connected to the glass layer, through holes 34 are formed at feeding positions of the glass layer and the adhesive layer corresponding to the transparent antenna, and conductive adhesive 35 is filled in the through holes to connect the transparent antenna and a radio frequency transmission line 4 disposed on an outer surface of the glass layer.
Specifically, the same positions of the glass layer 2, the adhesive layer 1, the hardened layer 31 and the UV adhesive layer 32 are provided with camera holes 5 with the same size, which are used for placing camera devices of mobile phones.
Specifically, the bonding glue layer 1 is DAF glue, the bonding glue layer is used for bonding glass layer and antenna layer, the through-hole has all been seted up to glass layer 2 and bonding glue layer 1, and two through-holes are mutual correspondence, the through-hole diameter on glass layer is less than the through-hole diameter of bonding glue layer, the through-hole is seted up in the position that corresponds transparent antenna 33, the through-hole intussuseption is filled with conductive adhesive 35, the port department of through-hole is provided with conductive adhesive dish on the glass layer lateral surface for fixed radio frequency transmission line.
Specifically, a radio frequency transmission line 4 is fixed at the position where the through hole is formed in the outer side surface of the glass layer 2, and the radio frequency transmission line is a line for transmitting electromagnetic energy in a radio frequency range.
Specifically, the antenna layer 3 includes the hardening layer 31, UV glue film 32, the transparent antenna 33 of range upon range of setting in proper order, the hardening layer material is resin class material, the position that the UV glue film is close to the bottom is formed with the transparent antenna of netted net, the appearance of transparent antenna is the F that the opening upwards transversely put, transparent antenna part links to each other with the conductive adhesive of bonding glue film 1 through-hole port, the other end of conductive adhesive links to each other with radio frequency transmission line 4.
The preparation method of the mobile phone rear cover with the transparent antenna comprises the following steps:
providing a PET substrate layer, forming a UV adhesive layer with the thickness of 5-10 mu m on one side of the PET substrate layer, embossing grid grooves on the surface of the UV adhesive layer close to the bottom, filling conductive silver paste into the grooves to form transparent antennas, and baking and curing to obtain an antenna layer;
bonding a bonding adhesive layer which is provided with a through hole and has a thickness of 15-35 mu m on one side of the antenna layer, wherein the through hole of the bonding adhesive layer corresponds to the feeding position of the transparent antenna, and the diameter of the through hole of the bonding adhesive layer is 0.3-0.5 mm longer than that of the through hole of the glass layer;
Cutting the antenna layer bonded with the adhesive layer into the shape of the mobile phone rear cover, wherein the shape comprises the outer edge of the mobile phone rear cover and a camera hole;
Providing a glass layer which is cut into the shape of the mobile phone rear cover and has the thickness of 0.5-1 mm, forming a through hole with the diameter of 0.1-0.6 mm at the position of the glass layer corresponding to the transparent antenna, and performing hot pressing on the glass layer which is cut and provided with the through hole and the cut antenna layer through an adhesive layer;
Filling conductive silver paste into through holes of the adhesive layer and the glass layer, conducting the conductive paste with the transparent antenna layer after baking and curing, introducing the transparent antenna circuit into the inner side of the glass from the outer side of the glass, peeling the PET substrate layer, coating the surface of the UV adhesive layer from which the PET substrate layer is peeled to form a hardened layer with the thickness of 2-10 mu m, wherein the hardened layer is made of resin materials, and is matched with the glass layer to ensure the strength of a mobile phone rear cover, a conductive paste disc is formed at a port of the through hole at the outer side of the glass layer and used for fixedly connecting a radio frequency transmission line, and fixing the radio frequency transmission line at the conductive paste of the through hole at the outer side surface of the glass layer to obtain the mobile phone rear cover for placing the transparent antenna.
The application provides a mobile phone rear cover with an external antenna for increasing the antenna efficiency and a preparation method of the rear cover. The design of the existing mobile phone antenna requires that the antenna efficiency reaches 35%, but 5G mobile phones and full screen mobile phones usually have the antenna efficiency near 20-30% and cannot reach a reference line of 35%, and the application can provide the mobile phone rear cover with the transparent peripheral antenna and the preparation method of the mobile phone rear cover, so that the antenna efficiency near 20-30% of the mobile phone antenna is improved to 35% or above of the reference line, and the product reaches the specified requirement.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (7)
1. The preparation method of the mobile phone rear cover with the transparent antenna is characterized in that the mobile phone rear cover comprises the following steps: the antenna comprises a glass layer (2) and an antenna layer (3) which are connected through a bonding adhesive layer (1), wherein the antenna layer comprises a hardening layer (31), a UV adhesive layer (32) and a transparent antenna (33) which are sequentially laminated, the transparent antenna is formed on the side surface of the UV adhesive layer, which is connected with the glass layer, a through hole (34) is formed in the position, corresponding to the feeding position of the transparent antenna, of the glass layer and the bonding adhesive layer, and conductive adhesive (35) which is used for connecting the transparent antenna (33) and a radio frequency transmission line (4) arranged on the outer surface of the glass layer is filled in the through hole;
The preparation method of the mobile phone rear cover comprises the following steps:
Providing a PET substrate layer, forming a UV adhesive layer on one side of the PET substrate layer, embossing grid grooves on the surface of the UV adhesive layer near the bottom, filling conductive silver paste into the grooves to form transparent antennas, and baking and curing to obtain an antenna layer;
one side of the antenna layer provided with the conductive adhesive is attached with a bonding adhesive layer provided with a through hole, and the through hole of the bonding adhesive layer corresponds to the feeding position of the transparent antenna;
cutting the antenna layer bonded with the adhesive layer into the shape of the mobile phone rear cover;
providing a glass layer cut into the shape of the mobile phone rear cover, forming a through hole at the position of the glass layer corresponding to the transparent antenna, and performing hot press bonding on the cut glass layer with the through hole and the cut antenna layer through an adhesive layer;
Filling conductive silver paste into the through holes of the bonding adhesive layer and the glass layer, baking and solidifying, stripping the PET substrate layer, coating the surface of the UV adhesive layer from which the PET substrate layer is stripped to form a hardened layer, and fixing the radio frequency transmission line at the conductive adhesive of the through holes on the outer side surface of the glass layer to obtain the rear cover of the mobile phone for placing the transparent antenna.
2. The method for manufacturing the mobile phone rear cover with the transparent antenna according to claim 1, wherein camera holes (5) with the same size are formed in the same positions of the glass layer (2), the adhesive layer (1), the hardening layer (31) and the UV adhesive layer (32).
3. The method for manufacturing a rear cover of a mobile phone with a transparent antenna according to claim 1, wherein the conductive adhesive (35) is conductive silver adhesive.
4. The method for manufacturing the mobile phone rear cover with the transparent antenna according to claim 1, wherein the transparent antenna (33) is arranged on the UV adhesive layer (32) near the bottom end side, the transparent antenna (33) is of a net-shaped grid structure, the line width of the transparent antenna is 1-20 μm, and the transparent antenna is made of conductive silver adhesive.
5. The method for manufacturing a rear cover of a mobile phone with a transparent antenna according to claim 1, wherein the thickness of the UV adhesive layer is 5-10 μm, the thickness of the adhesive layer is 15-35 μm, the thickness of the hardening layer is 2-10 μm, and the thickness of the glass layer is 0.5-1 mm.
6. The method for manufacturing the rear cover of the mobile phone with the transparent antenna according to claim 1, wherein the diameter of the through hole of the glass layer is 0.1-0.6 mm, and the diameter of the through hole of the adhesive layer is 0.3-0.5 mm longer than the diameter of the through hole of the glass layer.
7. The method for manufacturing a mobile phone rear cover with a transparent antenna according to claim 1, wherein when the conductive silver paste is filled in the through hole port on the outer side of the glass layer, a conductive adhesive disc is formed by overflowing the conductive silver paste and is used for fixedly connecting a radio frequency transmission line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110713969.3A CN113472923B (en) | 2021-06-25 | 2021-06-25 | Mobile phone rear cover with transparent antenna and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110713969.3A CN113472923B (en) | 2021-06-25 | 2021-06-25 | Mobile phone rear cover with transparent antenna and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113472923A CN113472923A (en) | 2021-10-01 |
| CN113472923B true CN113472923B (en) | 2024-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110713969.3A Active CN113472923B (en) | 2021-06-25 | 2021-06-25 | Mobile phone rear cover with transparent antenna and preparation method thereof |
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| Country | Link |
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| CN (1) | CN113472923B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2017082652A1 (en) * | 2015-11-10 | 2017-05-18 | 삼성전자 주식회사 | Antenna device and electronic device having same |
| WO2017142350A1 (en) * | 2016-02-17 | 2017-08-24 | 주식회사 아모센스 | Back cover for portable terminal and back cover-integrated antenna module including same |
| CN107646095A (en) * | 2015-05-22 | 2018-01-30 | 三星电子株式会社 | Display module and its manufacture method |
| CN111342229A (en) * | 2020-03-27 | 2020-06-26 | 安徽精卓光显技术有限责任公司 | Rear shell and electronic equipment |
| CN112751170A (en) * | 2019-10-30 | 2021-05-04 | Lg电子株式会社 | Electronic device with 5G antenna |
-
2021
- 2021-06-25 CN CN202110713969.3A patent/CN113472923B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107646095A (en) * | 2015-05-22 | 2018-01-30 | 三星电子株式会社 | Display module and its manufacture method |
| WO2017082652A1 (en) * | 2015-11-10 | 2017-05-18 | 삼성전자 주식회사 | Antenna device and electronic device having same |
| 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 |
| WO2017142350A1 (en) * | 2016-02-17 | 2017-08-24 | 주식회사 아모센스 | Back cover for portable terminal and back cover-integrated antenna module including same |
| CN112751170A (en) * | 2019-10-30 | 2021-05-04 | Lg电子株式会社 | Electronic device with 5G antenna |
| CN111342229A (en) * | 2020-03-27 | 2020-06-26 | 安徽精卓光显技术有限责任公司 | Rear shell and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113472923A (en) | 2021-10-01 |
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