CN215008553U - NFC antenna structure, screen assembly and terminal equipment - Google Patents
NFC antenna structure, screen assembly and terminal equipment Download PDFInfo
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- CN215008553U CN215008553U CN202120300442.3U CN202120300442U CN215008553U CN 215008553 U CN215008553 U CN 215008553U CN 202120300442 U CN202120300442 U CN 202120300442U CN 215008553 U CN215008553 U CN 215008553U
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- nfc antenna
- antenna structure
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- screen assembly
- screen
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Abstract
The utility model discloses a NFC antenna structure, a screen assembly and a terminal device, wherein the NFC antenna structure is used for integrating with a nonmetal device and comprises a substrate and an antenna coil, and the antenna coil is arranged on the substrate; the total thickness of the NFC antenna structure is less than or equal to 55 μm. The utility model discloses can reduce NFC antenna thickness, practice thrift the cost.
Description
Technical Field
The utility model relates to a wireless communication technology field especially relates to a NFC antenna structure, screen subassembly and terminal equipment.
Background
The development of 5G communication brings the wireless age of everything interconnection, and the non-inductive payment is more and more popular. The device with the NFC (Near Field Communication) function can simulate various bank cards, access control cards and the like, can be used for non-contact mobile payment in scenes such as markets, traffic and the like, and can also be used as a data processor for reading TAG (TAG) by NFC to realize the functions of data acquisition, information reading and the like. NFC-enabled short-range communication is now becoming a standard accessory for consumer terminal devices.
NFC antennas are typically composed of a circuit coil made by a wire winding/printing/etching process and a ferrite material with interference immunity. The ferrite is arranged in the conventional NFC antenna so as to improve the NFC performance, shield the influence of a main board of the terminal equipment on an NFC coil and weaken the influence of EMI (electromagnetic interference). However, due to the addition of ferrite, the thickness of the NFC antenna is increased, and the NFC antenna cannot be integrated in other devices.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the NFC antenna structure, the screen assembly and the terminal device are provided, the thickness of the NFC antenna can be reduced, and cost is saved.
In order to solve the technical problem, the utility model discloses a technical scheme be: an NFC antenna structure for integration with a non-metallic device; the antenna comprises a substrate and an antenna coil, wherein the antenna coil is arranged on the substrate; the total thickness of the NFC antenna structure is less than or equal to 55 μm.
Further, the thickness of the base material is 50 μm, and the thickness of the antenna coil is 5 μm.
The utility model also provides a screen component, which comprises a cover plate glass, a touch panel, a polarizing plate, a display panel and a back plate which are arranged in a laminated way, and also comprises the NFC antenna structure; the NFC antenna structure is arranged between the cover plate glass and the touch panel, between the touch panel and the polarizing plate, between the polarizing plate and the display panel or between the display panel and the back plate.
Furthermore, the display panel also comprises a metal layer, and the metal layer is arranged on one surface of the back plate, which is far away from the display panel.
Further, the antenna coil is disposed adjacent to the cover glass.
Further, the touch panel comprises a light guide layer, a touch screen and an electronic ink screen which are arranged in a stacked mode.
The utility model also provides a terminal equipment, including the casing and as above screen assembly, screen assembly set up in the casing.
The beneficial effects of the utility model reside in that: the NFC antenna structure can realize the reading and payment functions of NFC when no ferrite exists, so that the cost can be saved, and the thickness of the NFC antenna can be reduced. Meanwhile, the thickness of the machine body can be reduced after the screen assembly is integrated, the spatial layout is optimized, a good environment is provided for the design of the NFC antenna, more schemes can be designed to improve the NFC performance, and the number of components of the whole machine and the assembly steps can be reduced.
Drawings
Fig. 1 is a schematic top view of an NFC antenna structure according to a first embodiment of the present invention;
fig. 2 is a schematic side view of an NFC antenna structure according to a first embodiment of the present invention;
fig. 3 is a schematic diagram of a magnetic field direction and a current direction of an NFC antenna structure according to a first embodiment of the present invention;
fig. 4 is a schematic structural diagram of a screen assembly according to a second embodiment of the present invention;
fig. 5 is a second schematic structural diagram of a screen assembly according to a second embodiment of the present invention;
fig. 6 is a third schematic structural view of a screen assembly according to a second embodiment of the present invention;
fig. 7 is a fourth schematic structural diagram of a screen assembly according to a second embodiment of the present invention;
fig. 8 is a schematic diagram of a magnetic field direction of the NFC antenna structure in fig. 5.
Description of reference numerals:
1. an NFC antenna structure; 2. cover plate glass; 3. a touch panel; 4. a polarizing plate; 5. a display panel; 6. a back plate;
11. a substrate; 12. an antenna coil;
31. a light guide layer; 32. a touch screen; 33. an electronic ink screen.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made in conjunction with the embodiments and the accompanying drawings.
Referring to fig. 1, an NFC antenna structure is used for integration with a non-metal device; the antenna comprises a substrate and an antenna coil, wherein the antenna coil is arranged on the substrate; the total thickness of the NFC antenna structure is less than or equal to 55 μm.
From the above description, the beneficial effects of the present invention are: the thickness of the NFC antenna can be reduced, and cost is saved.
Further, the thickness of the base material is 50 μm, and the thickness of the antenna coil is 5 μm.
The utility model also provides a screen component, which comprises a cover plate glass, a touch panel, a polarizing plate, a display panel and a back plate which are arranged in a laminated way, and also comprises the NFC antenna structure; the NFC antenna structure is arranged between the cover plate glass and the touch panel, between the touch panel and the polarizing plate, between the polarizing plate and the display panel or between the display panel and the back plate.
As can be seen from the above description, since there is no object that absorbs or isolates the magnetic field in the stack of the screen assembly, the NFC antenna structure can also implement the NFC reading and payment functions without ferrite, which can save the cost and reduce the thickness of the NFC antenna.
Furthermore, the display panel also comprises a metal layer, and the metal layer is arranged on one surface of the back plate, which is far away from the display panel.
As can be seen from the above description, by disposing the metal layer under the back plate, the electromagnetic interference of the NFC antenna to other devices can be effectively avoided.
Further, the antenna coil is disposed adjacent to the cover glass.
Further, the touch panel comprises a light guide layer, a touch screen and an electronic ink screen which are arranged in a stacked mode.
The utility model also provides a terminal equipment, including the casing and as above screen assembly, screen assembly set up in the casing.
Example one
Referring to fig. 1-3, a first embodiment of the present invention is: an NFC antenna structure is applicable to integration with a non-metal device, such as a screen component.
As shown in fig. 1-2, the NFC antenna structure 1 includes a substrate 11 and an antenna coil 12, where the antenna coil 12 is disposed on the substrate 1. The shape, length, thickness, etc. of the antenna coil can be determined according to actual requirements and performance, for example, the self-inductance and resistance of the coil and the chip used can be designed.
In this embodiment, the total thickness of the NFC antenna structure is 55 μm, wherein the thickness of the substrate is 50 μm, and the thickness of the antenna coil is 5 μm. Furthermore, the base material can be PET or glass, and the antenna coil is made of metal.
The NFC coil generates a magnetic field after being electrified, the current direction can be controlled to enable the magnetic field to radiate the magnetic field outside the screen, and then the function is achieved through coupling. Fig. 3 is a schematic diagram of a magnetic field direction and a current direction of the NFC antenna structure of the present embodiment, where C is the magnetic field direction and radiates outward; d is the current flow direction, and E is the current flow direction.
In this embodiment, when the NFC antenna structure is integrated with a non-metal device, metal parts such as a motherboard and the like may be kept away from, so that the NFC reading and payment functions may be realized without ferrite, which may save costs (such as raw material costs and manufacturing costs) and reduce the thickness of the NFC antenna.
Example two
Referring to fig. 4-8, the second embodiment of the present invention is: a screen component can be applied to terminal equipment needing to realize an NFC function, such as a POS machine, a Tag card and the like. The screen assembly comprises cover plate glass, a touch panel, a polarizing plate, a display panel and a back plate which are arranged in a laminated mode, and further comprises the NFC antenna structure in the first embodiment. Wherein the NFC antenna structure may be disposed between any two adjacent layers of the screen assembly stack. For example, as shown in fig. 4, the NFC antenna structure 1 is disposed between the cover glass 2 and the touch panel 3; as shown in fig. 5, the NFC antenna structure 1 is disposed between the touch panel 3 and the polarizer 4; as shown in fig. 6, the NFC antenna structure 1 is disposed between the polarizer 4 and the display panel 5; as shown in fig. 7, the NFC antenna structure 1 is disposed between the display panel 5 and the back plate 6. Wherein, only the touch panel (liquid crystal display) has certain influence on the performance of the NFC antenna.
Further, the antenna coil is disposed adjacent to the cover glass. The touch panel 3 includes a light guide layer 31, a touch screen 32, and an electronic ink screen 33 stacked together. When the NFC antenna structure is disposed between the touch panel and the polarizer, the magnetic field direction is as shown in fig. 8. That is, by directing the antenna coil toward the cover glass, the antenna radiates a magnetic field outward through the cover glass of the screen, achieving electromagnetic coupling. Because no object absorbing or isolating the magnetic field exists in the stack of the screen assembly, the functions of card simulation and card reader, P2P and other NFC functions can be realized.
Further, the display device further comprises a metal layer (not shown in the figure), and the metal layer is arranged on one surface of the back plate far away from the display panel. Preferably, the metal layer is a metal frame. By arranging a layer of metal frame below the back plate, the electromagnetic interference of the NFC antenna on other devices can be effectively avoided.
When the metal wiring in the NFC antenna structure is thin and thin, the effect of transparentization of the metal wiring can be achieved, when the NFC antenna structure is integrated with a screen component, the light transmittance can meet the requirement, screen display is not affected, and therefore the setting position of the NFC antenna structure can not be limited in a non-display area, namely the NFC antenna structure can be set in any area of a screen.
In the embodiment, after the NFC antenna structure is integrated with the screen component, the thickness of the machine body can be reduced, the spatial layout is optimized, and the functions of card swiping and card reading are supported. In addition, the screen component is integrated, a good environment is provided for the design of the NFC antenna, and more schemes can be designed to improve the NFC performance.
To sum up, the utility model provides a pair of NFC antenna structure, screen pack and terminal equipment, NFC antenna structure can also realize reading and the payment function of NFC when no ferrite, both can save the cost, still can reduce NFC antenna thickness. Meanwhile, the thickness of the machine body can be reduced after the screen assembly is integrated, the spatial layout is optimized, a good environment is provided for the design of the NFC antenna, more schemes can be designed to improve the NFC performance, and the number of components of the whole machine and the assembly steps can be reduced.
The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (7)
1. An NFC antenna structure, wherein the NFC antenna structure is for integration with a non-metallic device; the antenna comprises a substrate and an antenna coil, wherein the antenna coil is arranged on the substrate; the total thickness of the NFC antenna structure is less than or equal to 55 μm.
2. The NFC antenna structure for integration with a non-metallic device of claim 1, wherein the substrate is 50 μ ι η thick and the antenna coil is 5 μ ι η thick.
3. A screen assembly comprising a cover glass, a touch panel, a polarizer, a display panel, and a back plate, in a stacked arrangement, further comprising the NFC antenna structure of claim 1 or 2; the NFC antenna structure is arranged between the cover plate glass and the touch panel, between the touch panel and the polarizing plate, between the polarizing plate and the display panel or between the display panel and the back plate.
4. A screen assembly as recited in claim 3, further comprising a metal layer disposed on a side of the backplate away from the display panel.
5. A screen assembly as recited in claim 3, wherein the antenna coil is disposed proximate the cover glass.
6. A screen assembly as recited in claim 3, wherein the touch panel includes a light guide layer, a touch screen, and an electronic ink screen in a stacked arrangement.
7. A terminal device comprising a housing and a screen assembly as claimed in any one of claims 3 to 6, the screen assembly being disposed within the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120300442.3U CN215008553U (en) | 2021-02-02 | 2021-02-02 | NFC antenna structure, screen assembly and terminal equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120300442.3U CN215008553U (en) | 2021-02-02 | 2021-02-02 | NFC antenna structure, screen assembly and terminal equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215008553U true CN215008553U (en) | 2021-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120300442.3U Active CN215008553U (en) | 2021-02-02 | 2021-02-02 | NFC antenna structure, screen assembly and terminal equipment |
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| CN (1) | CN215008553U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113036393A (en) * | 2021-02-02 | 2021-06-25 | 深圳市信维通信股份有限公司 | Screen component integrated with NFC antenna structure and terminal equipment |
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2021
- 2021-02-02 CN CN202120300442.3U patent/CN215008553U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113036393A (en) * | 2021-02-02 | 2021-06-25 | 深圳市信维通信股份有限公司 | Screen component integrated with NFC antenna structure and terminal equipment |
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