CN112795263A - Metal shielding camera and manufacturing method thereof - Google Patents
Metal shielding camera and manufacturing method thereof Download PDFInfo
- Publication number
- CN112795263A CN112795263A CN202110156896.2A CN202110156896A CN112795263A CN 112795263 A CN112795263 A CN 112795263A CN 202110156896 A CN202110156896 A CN 202110156896A CN 112795263 A CN112795263 A CN 112795263A
- Authority
- CN
- China
- Prior art keywords
- camera
- metal shielding
- camera module
- metal
- shielding layer
- 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.)
- Pending
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/24—Electrically-conducting paints
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/02—Bodies
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0806—Silver
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/085—Copper
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/001—Conductive additives
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Studio Devices (AREA)
- Lens Barrels (AREA)
Abstract
The invention provides a metal shielding camera and a manufacturing method thereof, comprising the following steps: providing a camera module and cleaning the surface of a shell of the camera module; preparing conductive paint; protecting a lens area of the camera module and exposing an area to be printed of the camera module; printing an area to be printed of the camera module by using conductive paint so as to form a metal shielding layer on the surface of a shell of the camera module; and baking until the metal shielding layer is solidified to form the metal shielding camera. A metal shielding layer can be formed on the surface of the camera module through a printing process, so that good electromagnetic shielding can be realized between the camera and the antenna; meanwhile, the metal shielding layer formed by utilizing the printing process is thin, and can be precisely matched with the shell of the camera module, so that the internal space of the mobile terminal is saved; in addition, the process cost of forming the metal shielding layer by the printing process is lower. Therefore, the problem of how to ensure the metal shielding performance of the camera on the basis of controlling the cost is solved.
Description
Technical Field
The invention relates to the technical field of cameras, in particular to a metal shielding camera and a manufacturing method thereof.
Background
With the development of wireless communication technology, antennas are more and more located in mobile terminals. Generally, a plurality of different antennas exist in a mobile terminal, and the performance of the antennas, which are used as a transmission and reception medium for electromagnetic waves, is very sensitive to environmental influences, such as electronic components around the antennas, and the like, all affect the performance of the antennas.
In an existing mobile terminal, such as a mobile phone, a camera is usually equipped to implement a photographing and recording function, and the structure of the camera usually includes a housing, a lens module and a motor. Usually, an antenna is designed near the camera, so as to avoid interference between the antenna and the camera motor, in the prior art, a metal shielding case is added outside the camera module to achieve electromagnetic shielding between the antenna and the motor, thereby ensuring the performance of the antenna and the normal operation of the camera.
However, as the internal space of the mobile terminal is smaller and smaller, the metal shielding cover occupies part of the space, and the structural design of other components is limited; in addition, along with the miniaturization of the camera, the processing technology requirement of the metal shielding cover is gradually improved, and the production cost is increased to a certain extent.
Disclosure of Invention
The invention aims to provide a metal shielding camera and a manufacturing method thereof, and aims to solve the problem of ensuring the metal shielding performance of the camera on the basis of controlling the cost.
In order to solve the above technical problem, the present invention provides a method for manufacturing a metal-shielded camera, including:
providing a camera module and cleaning the surface of a shell of the camera module;
preparing conductive paint;
protecting a lens area of the camera module and exposing an area to be printed of the camera module;
printing an area to be printed of the camera module by using the conductive paint so as to form a metal shielding layer on the surface of the shell of the camera module;
and baking until the metal shielding layer is solidified to form the metal shielding camera.
Optionally, in the manufacturing method of the metal shielding camera, the conductive paint includes: 20-30% of acrylic resin, 30-50% of silver-coated copper powder, 5-12% of polyurethane aqueous dispersion, 0.5-1.5% of plasticizer, 0.5-1.5% of defoaming agent and the balance of solvent.
Optionally, in the manufacturing method of the metal shielding camera, the particle diameter of the silver-coated copper powder is 5-18 μm.
Optionally, in the manufacturing method of the metal-shielded camera, the solvent includes: 25-40% of ethanol, 20-30% of isopropyl ketone, 10-20% of ethyl acetate and 10-45% of cycloethanone.
Optionally, in the manufacturing method of the metal shielding camera, the baking temperature is 90 ± 5 ℃ and the baking time is 4 ± 0.5 hour.
In order to solve the above technical problem, the present invention provides a metal-shielded camera manufactured by the method for manufacturing a metal-shielded camera according to any one of the above embodiments, where the metal-shielded camera includes a camera module and a metal shielding layer located on a surface of a housing of the camera module.
Optionally, in the metal shielding camera, the resistance of the metal shielding layer is 0.1 to 0.2 Ω.
Optionally, in the metal shielding camera, the thickness of the metal shielding layer is 10 to 15 μm.
Optionally, in the metal-shielding camera, the thickness of the metal shielding layer is 12 ± 2 μm.
Optionally, in the metal shielding camera, the metal shielding layer covers a surface of a housing of the camera module.
The invention provides a metal shielding camera and a manufacturing method thereof, comprising the following steps: providing a camera module and cleaning the surface of a shell of the camera module; preparing conductive paint; protecting a lens area of the camera module and exposing an area to be printed of the camera module; printing an area to be printed of the camera module by using the conductive paint so as to form a metal shielding layer on the surface of the shell of the camera module; and baking until the metal shielding layer is solidified to form the metal shielding camera. A metal shielding layer can be formed on the surface of the camera module through a printing process, so that good electromagnetic shielding can be realized between the camera and the antenna; meanwhile, the metal shielding layer formed by utilizing the printing process is thin, and can be precisely matched with the shell of the camera module, so that the internal space of the mobile terminal is saved; in addition, the process cost of forming the metal shielding layer by the printing process is lower. Therefore, the problem of how to ensure the metal shielding performance of the camera on the basis of controlling the cost is solved.
Drawings
Fig. 1 is a flowchart of a manufacturing method of the metal shielding camera according to this embodiment.
Detailed Description
The metal shielding camera and the manufacturing method thereof proposed by the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention. Further, the structures illustrated in the drawings are often part of actual structures. In particular, the drawings may have different emphasis points and may sometimes be scaled differently.
It is noted that the terms "comprises" and "comprising," and any variations thereof, in the description and claims of this invention, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The present embodiment provides a manufacturing method of a metal-shielded camera, as shown in fig. 1, the manufacturing method includes:
s1, providing a camera module and cleaning the surface of the shell of the camera module;
s2, preparing conductive paint;
s3, protecting the lens area of the camera module and exposing the area to be printed of the camera module;
s4, printing the area to be printed of the camera module by using the conductive paint to form a metal shielding layer on the surface of the shell of the camera module;
and S5, baking until the metal shielding layer is solidified to form the metal shielding camera.
According to the manufacturing method of the metal shielding camera, the metal shielding layer can be formed on the surface of the camera module through the printing process, so that good electromagnetic shielding can be achieved between the camera and the antenna; meanwhile, the metal shielding layer formed by utilizing the printing process is thin, and can be precisely matched with the shell of the camera module, so that the internal space of the mobile terminal is saved; in addition, the process cost of forming the metal shielding layer by the printing process is lower. Therefore, the problem of how to ensure the metal shielding performance of the camera on the basis of controlling the cost is solved.
In this embodiment, the conductive paint includes: 20-30% of acrylic resin, 30-50% of silver-coated copper powder, 5-12% of polyurethane aqueous dispersion, 0.5-1.5% of plasticizer, 0.5-1.5% of defoaming agent and the balance of solvent. Wherein the particle diameter of the silver-coated copper powder is 5-18 μm. The solvent comprises: 25-40% of ethanol, 20-30% of isopropyl ketone, 10-20% of ethyl acetate and 10-45% of cycloethanone.
Further, in this example, the baking temperature is 90. + -. 5 ℃ and the baking time is 4. + -. 0.5 hours.
This embodiment still provides a metal shield camera, the metal shield camera includes the camera module and is located the metal shielding layer on the shell surface of camera module.
According to the metal shielding camera provided by the embodiment, the metal shielding layer is formed on the metal shielding camera through a printing process, so that good electromagnetic shielding can be realized between the camera and the antenna; meanwhile, the metal shielding layer formed by utilizing the printing process is thin, and can be precisely matched with the shell of the camera module, so that the internal space of the mobile terminal is saved; in addition, the process cost of forming the metal shielding layer by the printing process is lower. Therefore, the problem of how to ensure the metal shielding performance of the camera on the basis of controlling the cost is solved.
In this embodiment, the resistance of the metal shielding layer is 0.1 to 0.2 Ω.
Preferably, in the present embodiment, the thickness of the metal shielding layer is 10 to 15 μm. More preferably, the thickness of the metal shielding layer is 12 +/-2 μm.
Further, in this embodiment, the metal shielding layer covers a surface of the housing of the camera module.
The following describes a method for manufacturing a metal-shielded camera according to an embodiment of the present invention.
Firstly, a camera module is provided, and the surface of a shell of the camera module is cleaned. In this embodiment, the camera module includes moulds the shell, is located the lens group, circuit mainboard etc. that mould the shell, and the protection film is attached to the camera lens surface of camera module, prevents that the camera lens from polluting, the fish tail. The cotton swab is used for dipping the absolute alcohol, the plastic shell surface of the camera module is wiped, and oil stains, dust and the like which possibly exist are removed.
Preferably, in this embodiment, after the cleaning, the camera module is preheated, the preheating baking temperature is 80-90 ℃, and the baking time is 30-60 minutes.
And then putting the camera module cleaned completely into the printing jig. In this embodiment, a pad printing machine is selected to print the housing of the camera module, and the operation principle and method of the pad printing machine are well known to those skilled in the art and will not be described herein again.
In this embodiment, the shell that moulds of camera module all needs to print except that the all the other surfaces of lens place off-plate, therefore printing jig can be a simple anchor clamps, makes four sides of camera module can rotate towards the printing head to in printing. In other embodiments, different jigs can be designed according to specific requirements, and even printing on each surface of the camera module can be completed by multi-step printing.
Then, the conductive paint is prepared. In this embodiment, the conductive paint includes: 20-30% of acrylic resin, 30-50% of silver-coated copper powder, 5-12% of polyurethane aqueous dispersion, 0.5-1.5% of plasticizer, 0.5-1.5% of defoaming agent and the balance of solvent. The solvent comprises: 25-40% of ethanol, 20-30% of isopropyl ketone, 10-20% of ethyl acetate and 10-45% of cycloethanone.
Specifically, the conductive paint comprises 22% by weight of acrylic resin, 40% by weight of silver-coated copper powder, 1% by weight of plasticizer, 1% by weight of defoaming agent, 11% by weight of ethanol, 7.5% by weight of isopropyl alcohol, 4% by weight of ethyl acetate and 13.5% by weight of cycloethanone. The components are fully mixed and poured into an ink box of a pad printing machine.
Of course, in other embodiments, formulated conductive paints may also be purchased. However, since the conductive paint usually contains additives such as resin, which are all special components, and the viscosity of the conductive paint is easily changed due to the temperature and the stirring speed, the metal precipitate at the bottom of the barrel must be dug up and stirred from bottom to top during stirring, so as to ensure the components of the conductive paint to be uniform.
And then, printing an area to be printed of the camera module by using the conductive paint so as to form a metal shielding layer on the surface of the shell of the camera module. Specifically, the printing of different surfaces of the camera module is completed by using a printing head of the pad printing machine in a grading manner, and it needs to be noted that conductive paint must be sprayed at each corner of the camera module during pad printing, otherwise, the non-directional circulation of current on the metal shielding layer is caused by uneven paint thickness, so that the shielding performance is affected.
Thus, the thickness of the metal shielding layer formed by printing is about 12 +/-2 μm, and the resistance is 0.1-0.2 omega.
And after printing is finished, putting the camera module into an oven for baking. In this example, the baking temperature was 90 ℃ and the baking time was 4 hours.
Generally, after the baking is finished, the camera is taken out and subjected to appearance inspection, whether a metal shielding layer formed on the surface of the camera is complete and uniform, whether the surface of a plastic shell is exposed or not is confirmed, and whether the surface of a lens is polluted or scratched or not is confirmed. Preferably, the function test of the camera is carried out, and the function of the camera is confirmed to be normal. Generally, the shielding performance of the assembled camera is measured, and the shielding performance of the products in the same batch is confirmed to meet the requirements.
And finally, packaging and delivering the qualified cameras. The temperature of the storage environment is 15-25 ℃, and the humidity is 30-60%; if the pad printed product is left for a long time (more than 72 hours), sealed packaging is required.
In summary, the metal shielding camera and the manufacturing method thereof provided in this embodiment include: providing a camera module and cleaning the surface of a shell of the camera module; preparing conductive paint; protecting a lens area of the camera module and exposing an area to be printed of the camera module; printing an area to be printed of the camera module by using the conductive paint so as to form a metal shielding layer on the surface of the shell of the camera module; and baking until the metal shielding layer is solidified to form the metal shielding camera. A metal shielding layer can be formed on the surface of the camera module through a printing process, so that good electromagnetic shielding can be realized between the camera and the antenna; meanwhile, the metal shielding layer formed by utilizing the printing process is thin, and can be precisely matched with the shell of the camera module, so that the internal space of the mobile terminal is saved; in addition, the process cost of forming the metal shielding layer by the printing process is lower. Therefore, the problem of how to ensure the metal shielding performance of the camera on the basis of controlling the cost is solved.
The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art based on the above disclosure are within the scope of the appended claims.
Claims (10)
1. A manufacturing method of a metal shielding camera is characterized by comprising the following steps:
providing a camera module and cleaning the surface of a shell of the camera module;
preparing conductive paint;
protecting a lens area of the camera module and exposing an area to be printed of the camera module;
printing an area to be printed of the camera module by using the conductive paint so as to form a metal shielding layer on the surface of the shell of the camera module;
and baking until the metal shielding layer is solidified to form the metal shielding camera.
2. The method for manufacturing a metal shielded camera according to claim 1, wherein the conductive paint comprises: 20-30% of acrylic resin, 30-50% of silver-coated copper powder, 5-12% of polyurethane aqueous dispersion, 0.5-1.5% of plasticizer, 0.5-1.5% of defoaming agent and the balance of solvent.
3. The method for manufacturing a metal-shielded camera according to claim 2, wherein the particle diameter of the silver-coated copper powder is 5 to 18 μm.
4. The method for manufacturing a metal-shielded camera according to claim 2, wherein the solvent includes: 25-40% of ethanol, 20-30% of isopropyl ketone, 10-20% of ethyl acetate and 10-45% of cycloethanone.
5. The method for manufacturing a metal shielded camera according to claim 1, wherein the baking temperature is 90 ± 5 ℃ and the baking time is 4 ± 0.5 hours.
6. The metal shielding camera manufactured by the manufacturing method of the metal shielding camera according to any one of claims 1 to 5, wherein the metal shielding camera comprises a camera module and a metal shielding layer located on the surface of a shell of the camera module.
7. The metal shielding camera head of claim 6, wherein the resistance of the metal shielding layer is 0.1-0.2 Ω.
8. The metal shielding camera head of claim 6, wherein the thickness of the metal shielding layer is 10-15 μm.
9. The metal shielded camera of claim 8, wherein the thickness of the metal shielding layer is 12 ± 2 μm.
10. The metal shielded camera of claim 6, wherein the metal shielding layer covers a surface of the housing of the camera module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110156896.2A CN112795263A (en) | 2021-02-05 | 2021-02-05 | Metal shielding camera and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110156896.2A CN112795263A (en) | 2021-02-05 | 2021-02-05 | Metal shielding camera and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112795263A true CN112795263A (en) | 2021-05-14 |
Family
ID=75814188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110156896.2A Pending CN112795263A (en) | 2021-02-05 | 2021-02-05 | Metal shielding camera and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112795263A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114231107A (en) * | 2021-12-27 | 2022-03-25 | 佛山市高明绿色德化工有限公司 | Conductive paint for shielding signals and using method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1049675A (en) * | 1990-03-06 | 1991-03-06 | 北京市印刷技术研究所 | Conductive printing ink of copper series |
| CN1796477A (en) * | 2004-12-30 | 2006-07-05 | 第一毛织株式会社 | Conductive coating composition and conductive film for shielding electromagnetic wave made thereof |
| CN108200313A (en) * | 2017-12-14 | 2018-06-22 | 中国航空工业集团公司上海航空测控技术研究所 | Fire monitoring camera in a kind of aircraft machine |
-
2021
- 2021-02-05 CN CN202110156896.2A patent/CN112795263A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1049675A (en) * | 1990-03-06 | 1991-03-06 | 北京市印刷技术研究所 | Conductive printing ink of copper series |
| CN1796477A (en) * | 2004-12-30 | 2006-07-05 | 第一毛织株式会社 | Conductive coating composition and conductive film for shielding electromagnetic wave made thereof |
| CN108200313A (en) * | 2017-12-14 | 2018-06-22 | 中国航空工业集团公司上海航空测控技术研究所 | Fire monitoring camera in a kind of aircraft machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114231107A (en) * | 2021-12-27 | 2022-03-25 | 佛山市高明绿色德化工有限公司 | Conductive paint for shielding signals and using method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5981043A (en) | Electroconductive coating composition, a printed circuit board fabricated by using it and a flexible printed circuit assembly with electromagnetic shield | |
| CN108476604B (en) | Conductive compositions for low frequency EMI shielding | |
| WO2017191888A1 (en) | Hollow shielding structure for different types of circuit elements and manufacturing method thereof | |
| CN205375499U (en) | Fingerprint sensor module and possess this portable electronic equipment | |
| CN112795263A (en) | Metal shielding camera and manufacturing method thereof | |
| EP3430877A1 (en) | Hollow shielding structure for different types of circuit elements and manufacturing method thereof | |
| US20150207208A1 (en) | Electronic device housing and method for making same | |
| US20060145302A1 (en) | Coating composition for electronic devices | |
| CN104882663A (en) | Mobile communication terminal, antenna connecting structure thereof, and manufacture method of antenna connecting structure | |
| CN101792634A (en) | Conductive coating and preparation method thereof | |
| CN205864954U (en) | The emi shielding film of high-transmission height shield effectiveness | |
| CN112808551A (en) | Metal shielding camera and manufacturing method thereof | |
| WO2002023895A1 (en) | Display filter substrate, and display device | |
| US20190352769A1 (en) | Housing of electronic device and method for manufacturing housing | |
| CN107872934A (en) | Method for producing shell, housing, mould and mobile terminal | |
| KR20110115747A (en) | Printed antenna and manufacturing method thereof | |
| CN111427591B (en) | Program offline manufacturing method and device, storage medium and electronic equipment | |
| CN103488049A (en) | Nano-silver photoresist composite material and method for preparing silver wire or inductor by using same | |
| CN103207544A (en) | Dry film development process | |
| CN102412437A (en) | Manufacturing method of antenna | |
| CN205491653U (en) | Metallic shield covers monomer structure | |
| KR101823134B1 (en) | EMI shield can for ink Composition, Method of Preparing shield can Using shield can for ink Composition, And shield can Prepared Using Same | |
| CN108565546A (en) | The method of antenna and the glass back cover with antenna are made in glass back cover | |
| CN103022664B (en) | Three-dimensional antenna manufacture method | |
| CN205336735U (en) | Electromagnetic shield structure and cell -phone of cell -phone circuit board |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210514 |
|
| RJ01 | Rejection of invention patent application after publication |