Electronic device

Abstract

The utility model provides electronic equipment, and belongs to the technical field of electronics. The electronic equipment comprises a display screen and an NFC tag. The display screen comprises a non-display surface, and the NFC tag is located on the side where the non-display surface is located; the display screen comprises at least one metal layer, the at least one metal layer is provided with an avoiding window, and the position of the avoiding window corresponds to the position of the NFC tag. According to the electronic equipment provided by the utility model, the avoiding window is arranged on the metal layer of the display screen, and after the NFC tag is arranged below the screen, the avoiding window can be used for transmitting and receiving electromagnetic waves, so that the problem that the NFC tag in the electronic equipment with a narrow frame has no place to arrange can be solved; in addition, the NFC tag performs wireless communication through the avoidance window, and normal display of the display screen is not affected.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic technical field, especially relate to an electronic device. BACKGROUND

[0002] Electronic device usually has a mutual transmission and so on equipment interaction function, and this interaction function realizes mainly relying on the NFC (Near Field Communication, near field communication) label built in electronic device.

[0003] In the related art, the NFC label is usually arranged in the black border area of the display screen.

[0004] However, with the continuous improvement of the screen ratio of the electronic device, the black border area of the display screen is continuously compressed, and it is possible to completely disappear, and the NFC label faces the problem of no place to arrange. SUMMARY

[0005] The utility model provides an electronic device can solve the problem that NFC label faces no place to arrange.

[0006] The technical scheme is as follows:

[0007] An electronic device, the electronic device includes: display screen and NFC label;

[0008] The display screen includes a non-display surface, and the NFC label is located on the side of the non-display surface.

[0009] The display screen includes at least one metal layer, the at least one metal layer is provided with a avoiding window, and the position of the avoiding window corresponds to the position of the NFC label.

[0010] In some embodiments, the avoiding window is provided with an insulating filling part.

[0011] In some embodiments, the at least one metal layer is located on the non-display surface.

[0012] The avoiding window is close to at least one edge of the metal layer.

[0013] In some embodiments, the display screen further includes a wiring layer, and the skin depth δ of electromagnetic wave corresponding to the working frequency f of the NFC label in the wiring layer is greater than the thickness d of the wiring layer.

[0014] In some embodiments, the display screen further includes a wiring layer, the magnetic permeability of the wiring layer is μ, the electrical conductivity is σ, the working frequency of the NFC label is f, and the thickness of the wiring layer is d, and the following formula is met:

[0015]

[0016] wherein, π is the ratio of the circumference of a circle to its diameter.

[0017] In some embodiments, the display screen further comprises a wiring layer, the magnetic permeability μ of the wiring layer is greater than or equal to 4π×10 -7 H / M, the conductivity σ is greater than or equal to 4000 S / m, and the working frequency f of the NFC tag is 13.56 MHz.

[0018] The thickness d of the wiring layer is less than 0.068 mm.

[0019] In some embodiments, the NFC tag comprises a substrate and a radiation coil.

[0020] Two gold fingers are arranged on the substrate, the radiation coil is arranged on the substrate, one end of the radiation coil is electrically connected with one of the gold fingers, and the other end of the radiation coil is electrically connected with the other gold finger.

[0021] In some embodiments, the electronic device further comprises a support member, and the support member is located on the side where the non-display surface is located.

[0022] The NFC tag is arranged on the surface of the support member facing the display screen.

[0023] In some embodiments, the electronic device further comprises a metal back cover, the display screen is connected with the metal back cover, and the display surface of the display screen faces outward.

[0024] The NFC tag and the support member are respectively arranged between the display screen and the metal back cover, and the support member is connected with the metal back cover.

[0025] In some embodiments, the display screen further comprises a cover plate layer, an optical adhesive layer, a polarizing layer, a wiring layer, a back plate layer, an embossed layer, a foam layer, a connecting layer, a gel layer and a heat conduction layer which are stacked in sequence.

[0026] The cover plate layer is arranged on the display surface of the display screen, the metal layer is arranged on the non-display surface, and the heat conduction layer is arranged on the side of the metal layer facing the display surface.

[0027] The technical scheme provided by the utility model has at least the following beneficial effects:

[0028] The electronic equipment of the utility model, through the metal layer of display screen set up the avoidance window, NFC label is arranged below the screen, can utilize this avoidance window to carry out electromagnetic wave emission and reception, thereby can solve the problem that NFC label has no place to arrange in the narrow frame electronic equipment, in addition, NFC label carries out wireless communication through the avoidance window, will not influence the normal display of display screen. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the following will be briefly introduced to the drawing needed to be used in the embodiment description, obviously, the drawing in the following description only some embodiments of the utility model, for the ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other drawings according to these drawings.

[0030] Figure 1 It is the structural schematic diagram of electronic equipment provided by the utility model embodiment;

[0031] Figure 2 It is the structural section view of electronic equipment provided by the utility model embodiment;

[0032] Figure 3 It is the structural section view of electronic equipment provided by another embodiment of the utility model;

[0033] Figure 4 It is the structural section view of electronic equipment provided by another embodiment of the utility model;

[0034] Figure 5 It is the structural schematic diagram of NFC label provided by the utility model embodiment;

[0035] Figure 6 It is the structural section view of display screen provided by the utility model embodiment;

[0036] Figure 7 It is the performance test result of NFC label in the electronic equipment provided by the utility model embodiment.

[0037] The reference numerals in the drawing respectively represent as:

[0038] 1, display screen;

[0039] 101, display surface;102, non-display surface;

[0040] 11, metal layer;1101, avoidance window;1102, insulating filling portion;12, wiring layer;13, cover plate layer;14, optical adhesive layer;15, polarizing layer;16, back plate layer;17, embossed layer;18, foam layer;19, connecting layer;110, gel layer;111, heat conduction layer;

[0041] 2, NFC tag;

[0042] 21, substrate; 2011, gold finger; 22, radiation coil;

[0043] 3, support piece;

[0044] 4, metal back shell. DETAILED DESCRIPTION

[0045] The exemplary embodiments will be described in detail herein with reference to the accompanying drawings. In the following description, unless otherwise indicated, like numbers in the different drawings represent similar or analogous elements. The following exemplary embodiments described therein represent the best attempts at non-limiting examples of the devices and methods in accordance with some aspects of the present disclosure, as detailed in the claims appended hereto.

[0046] In the description of the present disclosure, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the drawings, and are only for the purpose of facilitating the description of the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present disclosure. Figure 1 The orientation or positional relationship shown is only for the purpose of facilitating the description of the present disclosure and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present disclosure.

[0047] It should be understood that in the present disclosure, "electrically connected" can be understood as physical contact and electrical conduction of components; it can also be understood as a form of connection between different components in the circuit structure through a physical line such as copper foil or wire on a printed circuit board (PCB) that can transmit electrical signals. "Communication connection" can refer to electrical signal transmission, including wireless communication connection and wired communication connection. Wireless communication connection does not require a physical medium and is not a connection relationship that defines the product structure. "Connection" and "connected" can refer to a mechanical connection relationship or a physical connection relationship, i.e., A and B are connected or A and B are connected, which means that there is a fastening component (such as a screw, bolt, rivet, etc.) between A and B, or A and B are in contact with each other and A and B are difficult to separate.

[0048] Unless otherwise defined, all technical terms used in the embodiments of the present disclosure have the same meanings as commonly understood by one of ordinary skill in the art.

[0049] In the related art, in order to improve user experience, full-metal or metal middle frame electronic devices such as tablets start to use OLED screens, the display effect of the OLED screen is better than that of the LCD screen, and the energy consumption is lower, but the screen frame will be narrower; for the narrow frame (less than 2mm) OLED screen, the NFC signal is shielded and difficult to radiate out due to the shielding of the stainless steel (SUS) or copper foil under the screen.

[0050] The electronic device provided by the utility model can solve the problem of no place to arrange the NFC tag in the electronic device with a narrow frame.

[0051] Exemplarily, the electronic device can be any one of various types of computer system devices that are mobile or portable and perform wireless communication. Specifically, the electronic device can be a mobile phone or a smart phone (for example, an iPhone TM-based phone, an Android TM-based phone), a portable game device (for example, Nintendo DS TM, PlayStation Portable TM, Gameboy Advance TM, iPhone TM), a laptop, a PDA, a portable Internet device, a music player, and a data storage device, other handheld devices, and the like such as a headset, and the electronic device can also be other wearable devices (for example, a headset (HMD) such as an electronic bracelet, an electronic necklace, an electronic device, or a smart watch) that need to be charged.

[0052] In order to make the purpose, technical scheme and advantages of the utility model more clear, the utility model embodiment will be described in further detail below with reference to the drawings.

[0053] In combination with Figure 1 and Figure 2 It is shown that the embodiment provides an electronic device, which comprises a display screen 1 and an NFC tag 2; the display screen 1 comprises a non-display surface 102, and the NFC tag 2 is located on the side where the non-display surface 102 is located.

[0054] The display screen 1 comprises at least one metal layer 11, and the at least one metal layer 11 is provided with a avoiding window 1101, and the position of the avoiding window 1101 corresponds to the position of the NFC tag 2.

[0055] The electronic device of the embodiment can solve the problem of no place to arrange the NFC tag 2 in the electronic device with a narrow frame by opening the avoiding window 1101 on the metal layer 11 of the display screen 1 and arranging the NFC tag 2 below the screen, so that the avoiding window 1101 can be used for electromagnetic wave emission and reception; in addition, the NFC tag 2 performs wireless communication through the avoiding window 1101, and does not affect the normal display of the display screen 1.

[0056] In some possible implementation manners, the avoidance window 1101 corresponds to the directional map position of the NFC tag 2, so that the NFC tag 2 can use the avoidance window 1101 to emit and receive electromagnetic waves.

[0057] In some possible implementation manners, the NFC tag 2 can store and transmit data such as contact information or commands, and can be used in various applications such as mobile payment, access control, marketing or automation.

[0058] For example, the NFC tag 2 has a communication frequency of 13.56 MHZ.

[0059] In combination Figure 3 As shown in FIG. 11, in some embodiments, the avoidance window 1101 is filled with an insulating filler 1102.

[0060] It is considered that the metal layer 11 in the display screen 1 usually has a strength to provide protection for the display screen 1 by itself, so that the insulating material filled in the avoidance window 1101 can make up for the strength loss of the metal layer 11, and ensure the protection effect of the display screen 1.

[0061] For example, the filler material includes but is not limited to polyamide (also known as nylon), polycarbonate (PC), fiber glass (FG), polyethylene (PE), polyether, polyethylene glycol terephthalate (PET), polymethyl methacrylate (PMMA), polypropylene (PP), polystyrene (PS), polyvinyl chloride (PVC) and the like. Any one of the above materials or a combination of any several materials can be used to form the embodiment.

[0062] In combination Figure 1 , Figure 2 and Figure 3 As shown in FIG. 11, in some embodiments, at least one metal layer 11 is located on the non-display surface 102; and the avoidance window 1101 is close to at least one edge of the metal layer 11.

[0063] By the above arrangement, the at least one metal layer 11 of the display screen 1 is located on the non-display surface 102 of the display screen 1, which can increase the structural strength and electromagnetic shielding of the display screen 1. The avoiding window 1101 corresponding to the NFC tag 2 is arranged on at least one edge of the metal layer 11, which can reduce the influence of the avoiding window on the structural strength of the display screen 1 as compared with the case where the avoiding notch is located in the middle of the metal layer 11. Moreover, the NFC tag 2 is arranged close to the edge of the metal layer 11, i.e., the NFC tag 2 is close to the frame of the electronic device, so that the NFC tag 2 can be far away from the electronic components inside the electronic device and has a better clearance environment, thereby having better wireless communication performance.

[0064] In some possible implementation manners, the avoiding window 1101 is close to the width edge of the metal layer 11, i.e., close to the frame in the width direction of the electronic device.

[0065] In combination Figure 4 As shown in the drawings, in some embodiments, the display screen 1 further includes a wiring layer 12, and the skin depth δ of the electromagnetic wave corresponding to the working frequency f of the NFC tag 2 in the wiring layer 12 is greater than the thickness d of the wiring layer 12.

[0066] By the above arrangement, when the skin depth δ of the NFC tag 2 is greater than the thickness d of the wiring layer 12, the electromagnetic wave of the NFC tag 2 can penetrate the wiring layer 12, i.e., penetrate the entire display screen 1.

[0067] The skin depth δ refers to the distance at which the current density exponentially decreases with the increase of the depth from the surface of the conductor under the action of alternating current or alternating electromagnetic field until the distance reaches 1 / e (about 36.8%) of the surface current density. The higher the frequency is, the more significant the skin effect is, and the smaller the skin depth is. For example, at low frequency, the distribution of current on the cross section of the conductor is relatively uniform, while at high frequency, the current is mainly concentrated near the surface of the conductor.

[0068] When the skin depth δ is greater than the thickness d of the wiring layer 12, it indicates that the alternating electromagnetic field generated by the NFC tag 2 can penetrate from one side of the wiring layer 12 to the other side, thereby realizing the transmission of electromagnetic waves.

[0069] In some embodiments, the display screen 1 further includes a wiring layer 12, the magnetic permeability of the wiring layer 12 is μ, the electrical conductivity of the wiring layer 12 is σ, the working frequency of the NFC tag 2 is f, and the thickness of the wiring layer 12 is d, which satisfy the following formula:

[0070]

[0071] Wherein, π is the circular constant.

[0072] Through the above arrangement, the skin depth of the electromagnetic wave transmitted and received by the NFC tag 2 in the wiring layer 12 can be determined according to the magnetic permeability and the electrical conductivity of the wiring layer 12 and the working frequency of the NFC tag 2, and then it is determined that the electromagnetic wave of the NFC tag 2 can be transmitted in the wiring layer 12.

[0073] In some embodiments, the display screen 1 further includes a wiring layer 12, the magnetic permeability μ of the wiring layer 12 is greater than or equal to 4π×10 -7 H / M, the electrical conductivity σ is greater than or equal to 4000 S / m, and the working frequency f of the NFC tag 2 is 13.56 MHz; the thickness d of the wiring layer 12 is less than 0.068 mm.

[0074] When the magnetic permeability, the electrical conductivity of the wiring layer 12, and the working frequency of the NFC tag 2 meet the above value range, the transmission of the electromagnetic wave of the NFC tag 2 in the wiring layer 12 can be realized, and the wiring layer 12 can meet the normal display requirements of the display screen 1, and the NFC tag 2 can meet the frequency requirements of the NFC communication.

[0075] In combination Figure 5 As shown in the figure, in some embodiments, the NFC tag 2 includes a substrate 21 and a radiation coil 22; the substrate 21 is provided with two gold fingers 2011, the radiation coil 22 is located on the substrate 21, and one end of the radiation coil 22 is electrically connected to one of the gold fingers 2011, and the other end of the radiation coil 22 is electrically connected to the other gold finger 2011.

[0076] Through the above arrangement, the NFC tag 2 can be integrated on the substrate 21, and assembled and electrically connected through the substrate 21, so that the structure is simpler and the reliability is higher.

[0077] In some possible implementations, the substrate 21 includes a printed circuit board (PCB), a flexible printed circuit board (FPC), a rigid-flexible combined board, or the like.

[0078] In another possible implementation, the two gold fingers 2011 are respectively used for feeding connection of the NFC tag 2. For example, the two gold fingers 2011 can be directly welded on a mainboard of the electronic device, or the two gold fingers 2011 are respectively electrically connected to the mainboard through coaxial lines. The mainboard can be arranged with an NFC radio frequency circuit.

[0079] In combination Figure 3 As shown in the figure, in some embodiments, the electronic device further includes a support member 3 located on the side where the non-display surface 102 is located; the NFC tag 2 is located on the surface of the support member 3 facing the display screen 1.

[0080] Through the above arrangement, the NFC tag 2 is supported and installed at the bottom of the display screen 1 by the bracket piece 3, the NFC tag 2 can be close to the avoiding window 1101 on the display screen 1, the NFC tag 2 has better clearance environment and wireless communication performance.

[0081] In combination Figure 3 As shown in the drawings, in some embodiments, the electronic device further comprises a metal back shell 4, the display screen 1 is connected with the metal back shell 4, and the display surface 101 of the display screen 1 faces the outside.

[0082] The NFC tag 2 and the bracket piece 3 are located between the display screen 1 and the metal back shell 4 respectively, and the bracket piece 3 is connected with the metal back shell 4.

[0083] Through the above arrangement, the electronic device is designed for the metal back shell 4, has better appearance effect and structural strength, the NFC tag 2 is connected with the metal back shell 4 through the bracket piece 3, has better support reliability.

[0084] In combination Figure 6 As shown in the drawings, in some embodiments, the display screen 1 further comprises a cover plate layer 13, an optical adhesive layer 14, a polarizing layer 15, a wiring layer 12, a back plate layer 16, a embossed layer 17, a foam layer 18, a connecting layer 19, a gel layer 110 and a heat conduction layer 111 which are sequentially stacked.

[0085] The cover plate layer 13 is located on the display surface 101 of the display screen 1, the metal layer 11 is located on the non-display surface 102, and the heat conduction layer 111 is located on the side of the metal layer 11 facing the display surface 101.

[0086] The display screen 1 provided in the embodiment can display pictures by using the wiring layer 12, the cover plate layer 13 and the metal layer 11 are respectively located on the display surface 101 and the non-display surface 102, which can provide good protection for the display screen 1 from the inside and the outside, and the heat conduction layer 111 is arranged on the inside of the metal layer 11, which can improve the heat dissipation capacity of the display screen 1.

[0087] Figure 7 It is the test result of S parameter of the electronic device by using a network analyzer, from the figure, it can be seen that the S parameter of the NFC tag is as low as-4dB at 12.56MHz frequency, which can meet the normal communication demand of the NFC tag. In addition, compared with the scheme of directly arranging the NFC tag at the bottom of the display screen (the display screen has no avoiding window), the NFC tag performance improvement efficiency of the electronic device provided by the utility model reaches 38.4%.

[0088] It should be noted that in the present application, unless otherwise specified and limited, the first feature is "on" or "under" the second feature, which can include direct contact between the first and second features, or indirect contact between the first and second features through another feature therebetween. Moreover, the first feature "on", "above" and "over" the second feature includes the first feature directly above and obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "under", "below" and "under" the second feature includes the first feature directly below and obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0089] In the description of the present application, the description of the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the present application.

[0090] The above is only an embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the principles of the present application shall be included in the protection scope of the present application.

Claims

1. An electronic device, comprising: The electronic device comprises a display screen (1) and an NFC tag (2); The display screen (1) comprises a non-display surface (102), and the NFC tag (2) is located on the side where the non-display surface (102) is located; The display screen (1) comprises at least one metal layer (11), and an avoiding window (1101) is arranged on the at least one metal layer (11), and the avoiding window (1101) is located at a position corresponding to the position of the NFC tag (2).

2. The electronic device of claim 1, wherein, An insulating filling part (1102) is arranged in the avoiding window (1101).

3. The electronic device of claim 1, wherein, The at least one metal layer (11) is located on the non-display surface (102). The avoiding window (1101) is close to at least one edge of the metal layer (11).

4. The electronic device of claim 1, wherein, The display screen (1) further comprises a wiring layer (12), and the skin depth δ of an electromagnetic wave corresponding to the working frequency f of the NFC tag (2) in the wiring layer (12) is greater than the thickness d of the wiring layer (12).

5. The electronic device of claim 1, wherein, The display screen (1) further comprises a wiring layer (12), the magnetic permeability of the wiring layer (12) is μ, the electrical conductivity of the wiring layer (12) is σ, the working frequency of the NFC tag (2) is f, and the thickness of the wiring layer (12) is d, and the following formula is satisfied: Wherein, π is a circular constant.

6. The electronic device of claim 1, wherein, The display screen (1) further comprises a wiring layer (12), the magnetic permeability μ of the wiring layer (12) is greater than or equal to 4π×10 -7 H / M, the conductivity σ is greater than or equal to 4000 S / m, and the working frequency f of the NFC tag (2) is 13.56 MHz. The thickness d of the wiring layer (12) is less than 0.068 mm.

7. The electronic device of any of claims 1-6, wherein, The NFC tag (2) comprises a substrate (21) and a radiation coil (22); Two gold fingers (2011) are arranged on the substrate (21), the radiation coil (22) is located on the substrate (21), one end of the radiation coil (22) is electrically connected to one of the gold fingers (2011), and the other end of the radiation coil (22) is electrically connected to the other gold finger (2011).

8. The electronic device of any of claims 1-6, wherein, The electronic device further comprises a support member (3), and the support member (3) is located on the side where the non-display surface (102) is located. The NFC tag (2) is located on the surface of the support member (3) facing the display screen (1).

9. The electronic device of claim 8, wherein, The electronic device further comprises a metal back shell (4), the display screen (1) is connected with the metal back shell (4), and the display surface (101) of the display screen (1) faces the outside; The NFC tag (2) and the support member (3) are located between the display screen (1) and the metal back shell (4) respectively, and the support member (3) is connected with the metal back shell (4).

10. The electronic device of any of claims 1-6, wherein, The display screen (1) further comprises a cover plate layer (13), an optical adhesive layer (14), a polarizing layer (15), a wiring layer (12), a back plate layer (16), an embossed layer (17), a foam layer (18), a connecting layer (19), a gel layer (110) and a heat conduction layer (111) which are sequentially stacked; The cover plate layer (13) is located on the display surface (101) of the display screen (1), the metal layer (11) is located on the non-display surface (102), and the heat conduction layer (111) is located on the side of the metal layer (11) facing the display surface (101).

Images