Electronic equipment

Abstract

The utility model provides electronic equipment, relates to the technical field of electronic equipment, and is used for solving the problem that the performance of an NFC (Near Field Communication) antenna is reduced due to wiring in a display screen. Specifically, the electronic equipment comprises a display screen and an NFC antenna, and the display screen comprises a non-display part; the NFC antenna is arranged on the non-display side of the display screen, and at least part of the orthographic projection of the NFC antenna on the plane where the display screen is located is located on the non-display part. The electronic equipment provided by the utility model is used for realizing near field communication.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of electronic devices, and in particular to an electronic device. Background Art

[0002] Near field communication (NFC) technology has broad application prospects in many fields because it allows contactless data transmission between wireless electronic devices and has the advantages of high security, low power consumption, and fast transactions.

[0003] In related technologies, NFC antennas are typically located on the non-display side of an electronic device's display screen, transmitting and receiving radio frequency signals from the side facing the display screen. However, the display screen of an electronic device often contains wiring, which can affect the performance of the NFC antenna, resulting in reduced performance. Utility Model Content

[0004] An embodiment of the present application provides an electronic device for solving the problem of performance degradation of an NFC antenna caused by wiring within a display screen.

[0005] To achieve the above objectives, the embodiments of the present application adopt the following technical solutions:

[0006] In a first aspect, an electronic device is provided, comprising a display screen and an NFC antenna, wherein the display screen includes a non-display portion; the NFC antenna is disposed on the non-display side of the display screen, and at least a portion of the orthographic projection of the NFC antenna on the plane where the display screen is located is located in the non-display portion.

[0007] According to the electronic device of the embodiment of the present application, the display screen also has a display portion, which is typically provided with a large number of pixels, so the wiring density of the display portion is relatively high. The non-display portion does not require the provision of pixels and is typically used to provide connection lines connecting the display screen with other components. Therefore, the wiring density of the non-display portion of the display screen is relatively low. By positioning at least a portion of the orthographic projection of the NFC antenna on the plane of the display screen in the non-display portion, the wiring of the non-display portion of the display screen has a smaller impact on the magnetic field of the NFC antenna than that of the display portion, thereby reducing the impact of the display screen wiring on the performance of the NFC antenna, thereby improving the performance of the NFC antenna.

[0008] In one possible implementation of the first aspect, the NFC antenna includes an NFC coil, and at least a portion of an orthographic projection of the NFC coil on the plane of the display screen is located in the non-display portion. This allows the wiring of the non-display portion of the display screen to have a smaller impact on the magnetic field of the NFC coil than on the display portion. This reduces the impact of the wiring of the display screen on the performance of the NFC coil, thereby improving the performance of the NFC coil.

[0009] In one possible implementation of the first aspect, the NFC antenna further includes a magnetic shielding sheet, which is disposed on a side of the NFC coil facing away from the display screen and covers at least a portion of the NFC coil. Covering the NFC coil with the magnetic shielding sheet can increase the magnetic field strength on the side of the NFC coil facing the display screen, thereby enabling the NFC antenna to transmit and receive signals with directionality, thereby increasing the electromagnetic induction distance.

[0010] In one possible implementation of the first aspect, at least a portion of the orthographic projection of the magnetic shielding sheet onto the plane of the display screen is located in the non-display portion. This allows the wiring in the non-display portion of the display screen to have a smaller impact on the anti-interference performance of the magnetic shielding sheet than on the display portion. This reduces the impact of the wiring in the display screen on the anti-interference performance of the magnetic shielding sheet, thereby improving the anti-interference performance of the magnetic shielding sheet and, consequently, the performance of the NFC antenna.

[0011] In one possible implementation of the first aspect, the electronic device further includes a screen circuit board, which is disposed on the non-display side of the display screen. The screen circuit board includes a first conductive portion and a second conductive portion, the first conductive portion being electrically connected to the display screen, and the second conductive portion forming an NFC coil. In this manner, the NFC coil is part of the screen circuit board, eliminating the need for a separate substrate to support the NFC coil. This reduces the overall thickness of the NFC coil and screen circuit board, thereby reducing the thickness of the electronic device and meeting the requirements for a thin and lightweight design.

[0012] In one possible implementation of the first aspect, the screen circuit board includes a first metal layer and a second metal layer stacked together, the first conductive portion being disposed in the first metal layer, and the second conductive portion being disposed in the second metal layer. That is, the first conductive portion and the NFC coil are located in different layers, thereby avoiding spatial interference between the first conductive portion and the NFC coil, thereby facilitating the placement of the first conductive portion and the NFC coil.

[0013] In one possible implementation of the first aspect, the electronic device further includes a driver module, the driver module being connected to a screen circuit board and electrically connected to the display screen via the first conductive portion, wherein an orthographic projection of the driver module on the plane of the display screen does not overlap with an orthographic projection of the NFC coil on the plane of the display screen. This non-overlapping orthographic projection of the driver module on the plane of the display screen and the orthographic projection of the NFC coil on the plane of the display screen can reduce interference of the driver module with the magnetic field of the NFC coil, thereby reducing interference of the driver module with signals transmitted and received by the NFC coil, thereby improving the performance of the NFC coil and the NFC antenna.

[0014] In one possible implementation of the first aspect, the screen circuit board has a device area and a non-device area, with the driver module and the first conductive portion located in the device area. This allows the driver module and the first conductive portion to be relatively concentrated, preventing them from being too dispersed and occupying a large area. The NFC coil includes a first portion and a second portion arranged sequentially along its circumference, with the first portion located along the edge of the non-device area facing away from the device area, and the second portion located in the device area. This allows the NFC coil to enclose a larger area, thereby increasing the radiation range of the NFC coil, improving the performance of the NFC coil, and thereby improving the performance of the NFC antenna.

[0015] In one possible implementation of the first aspect, the area of the non-device area is larger than the area of the device area. This allows the various components of the device area (e.g., the driver module, the first conductive portion, etc.) to be arranged more compactly, thereby further reducing the impact of the device area on the performance of the NFC coil, thereby further improving the performance of the NFC coil.

[0016] In a possible implementation of the first aspect, the electronic device further includes a display IC module and a connector, the display IC module and the connector being located on a side of the device area facing away from the non-device area, the connector being electrically connected to an input end of the driving module, the display IC module being electrically connected to an output end of the driving module, and being electrically connected to the display screen through the first conductive portion.

[0017] In one possible implementation of the first aspect, the device area includes a first device area, a second device area, and a third device area. The first device area is located at the end of the screen circuit board facing the display IC module, the third device area is located at the end of the screen circuit board facing the connector, and the second device area is located between the first device area, the third device area, and the non-device area. The driver module is located in the third device area, and at least a portion of the first conductive portion is located in the first device area and the second device area. This places the driver module near the edge of the screen circuit board and relatively close to the display IC module and the connector. The first conductive portion occupies a relatively small area to achieve connections between the driver module and the display IC module, between the driver module and the connector, and between the driver module and the display, thereby further reducing the impact of components in the device area on the performance of the NFC coil.

[0018] In one possible implementation of the first aspect, the second portion includes a first coil segment and a second coil segment, the first portion, the first coil segment, and the second coil segment being connected end to end in sequence, the first coil segment being located in the first device area, and the second coil segment being located in the third device area. As a result, because the first portion is located along an edge of the non-device area facing away from the device area, a portion of the area enclosed by the first portion, the first coil segment, and the second coil segment is located in the non-device area, while another portion is located in the device area. This allows the area enclosed by the first portion, the first coil segment, and the second coil segment to be larger, thereby improving the performance of the NFC coil.

[0019] In a possible implementation manner of the first aspect, the second coil segment is located on a side of the driving module facing away from the non-device area.

[0020] In one possible implementation of the first aspect, the angle between the length direction of the driver module and the length direction of the display IC module is greater than or equal to 0° and less than or equal to 90°. This can further reduce the distance between the driver module and the display IC module, thereby further reducing the area occupied by the first conductive portion, thereby minimizing the impact of components in the device area on the performance of the NFC coil.

[0021] In one possible implementation of the first aspect, the first portion includes a first section, which includes a multi-turn coil section. The multi-turn coil section comprises a first group of coil sections and a second group of coil sections, and the first group of coil sections is connected to the second portion. The NFC coil also includes a third section, whose ends are respectively connected to the ends of the second group of coil sections, and the third section is located in a non-device area. The third section can enhance the magnetic field strength of the NFC coil in the non-device area, thereby improving the signal transmission and reception performance of the NFC coil.

[0022] In one possible implementation of the first aspect, the first conductive portion includes a first connecting wire, connecting the display IC module and the driver module via the first connecting wire; an orthographic projection of the first connecting wire on the plane of the screen circuit board intersects with an orthographic projection of the first coil segment on the plane of the screen circuit board. This reduces the proximity of the first connecting wire to the first coil segment, thereby minimizing the impact of the magnetic field generated by the coupling between the first connecting wire and the first coil segment on the signal transmission and reception performance of the NFC coil, thereby improving the performance of the NFC coil.

[0023] In one possible implementation of the first aspect, a first shielding member is further provided on the screen circuit board and is disposed between the first connecting wire and the first coil segment. The first shielding member can shield interference signals between the first connecting wire and the first coil segment, thereby reducing the impact of the first connecting wire on the performance of the first coil segment and improving the performance of the NFC coil.

[0024] In a possible implementation manner of the first aspect, the first shielding component includes a first shielding layer, and the first shielding layer is provided between the first metal layer and the second metal layer.

[0025] In one possible implementation of the first aspect, the first conductive portion further includes a second connecting wire; the connector is connected to the driver module via the second connecting wire; and an orthographic projection of the second connecting wire on the plane of the screen circuit board intersects with an orthographic projection of the second coil segment on the plane of the screen circuit board. This reduces the proximity of the second connecting wire to the second coil segment, thereby minimizing the impact of the magnetic field generated by the coupling between the second connecting wire and the second coil segment on the signal transceiver performance of the NFC coil, thereby improving the performance of the NFC coil.

[0026] In one possible implementation of the first aspect, the orthographic projection of the magnetic shielding sheet on the plane of the screen circuit board covers the first device area, the second device area, and the non-device area. This allows the magnetic shielding sheet to cover a larger portion of the NFC coil, compared to a scenario where the magnetic shielding sheet only covers the non-device area. This increases the magnetic field strength on the side of the NFC coil facing the display screen, imparting directionality to the NFC antenna for signal transmission and reception, thereby increasing the electromagnetic induction distance.

[0027] In one possible implementation of the first aspect, an orthographic projection of the magnetic shielding sheet on the plane of the screen circuit board is located within the screen circuit board. This allows the entire surface of the magnetic shielding sheet to be supported by the screen circuit board during assembly or transportation of the electronic device, thereby preventing the magnetic shielding sheet from breaking and being damaged.

[0028] In a possible implementation of the first aspect, a distance between an outer edge of the magnetic isolation plate and an outer edge of the screen circuit board is greater than or equal to 0.2 mm.

[0029] In one possible implementation of the first aspect, the distance between the outer edge of the first portion and the outer edge of the magnetic shielding sheet is greater than or equal to 0.2 mm; and the distance between the outer edge of the first coil segment and the outer edge of the magnetic shielding sheet is greater than or equal to 0.2 mm. In this way, the first portion and the first coil segment of the NFC coil can be covered by the magnetic shielding sheet, thereby improving the magnetic shielding effect of the magnetic shielding sheet and increasing the magnetic field strength on the side of the NFC coil facing the display screen.

[0030] In one possible implementation of the first aspect, a QR code is further formed on the magnetic isolation sheet, the QR code being used to identify product information of the magnetic isolation sheet. Forming the QR code on the magnetic isolation sheet eliminates the need for paper carrying the QR code, thereby reducing the overall thickness of the QR code and magnetic isolation sheet, thereby reducing the thickness of the electronic device.

[0031] In one possible implementation of the first aspect, the NFC antenna further includes an NFC chip, an NFC filter module, and an NFC matching module. The input end of the NFC filter module is electrically connected to the output end of the NFC chip; the input end of the NFC matching module is electrically connected to the output end of the NFC filter module; and the output end of the NFC matching module is electrically connected to the NFC coil. At least a portion of the NFC matching module is disposed on the screen circuit board. By disposing at least a portion of the NFC matching module on the screen circuit board, the NFC matching module and the NFC coil can be connected using a shorter connecting cable, thereby reducing interference during signal transmission between the NFC matching module and the NFC coil, thereby improving signal transmission stability.

[0032] In a possible implementation of the first aspect, the display screen includes a touch module and a display panel, the touch module is arranged on the side of the display panel facing away from the screen circuit board; the screen circuit board includes a first circuit board and a second circuit board, the first circuit board is electrically connected to the touch module, the second circuit board is electrically connected to the display panel, and the first circuit board and the second circuit board are electrically connected; one of the first circuit board and the second circuit board includes an NFC coil.

[0033] In one possible implementation of the first aspect, the display screen further includes a metal shielding layer having a clearance hole defined therein. At least a portion of the orthographic projection of the clearance hole onto the plane of the screen circuit board overlaps at least a portion of the area enclosed by the orthographic projection of the NFC coil onto the plane of the screen circuit board. This prevents the metal shielding layer from shielding the magnetic field of the NFC coil, thereby ensuring that the NFC coil can properly receive radio frequency signals directed toward the side of the display screen.

[0034] In one possible implementation of the first aspect, an ambient light module is further included. The ambient light module is connected to the screen circuit board and is electrically connected to the driver module. The orthographic projection of the ambient light module on the plane of the screen circuit board does not overlap with the orthographic projection of the NFC coil on the plane of the screen circuit board. This reduces interference of the ambient light module with the signals transmitted and received by the NFC coil, thereby improving the performance of the NFC coil and, consequently, the NFC antenna. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A perspective view of an electronic device provided for some embodiments of the present application;

[0036] Figure 2 for Figure 1 Schematic diagram of the exploded structure of the host in the electronic device shown;

[0037] Figure 3 for Figure 2 Schematic diagram of the relationship between the screen circuit board and the display screen in the host;

[0038] Figure 4 for Figure 3 A schematic diagram of another positional relationship between the second coil segment and the driving module in the screen circuit board is shown;

[0039] Figure 5 for Figure 3 A schematic cross-sectional view of the screen circuit board shown;

[0040] Figure 6 for Figure 3 Another cross-sectional structural schematic diagram of the screen circuit board shown;

[0041] Figure 7 for Figure 3 The NFC coil of the screen circuit board shown has a third part added to the structural diagram;

[0042] Figure 8 for Figure 1 Schematic diagram of magnetic field distribution effect when the decorative part of the electronic device is made of ceramic and the NFC coil is set in the third part;

[0043] Figure 9 for Figure 1 Schematic diagram of magnetic field distribution effect when the decorative part of the electronic device is made of ceramic and the NFC coil is not provided with a third part;

[0044] Figure 10 for Figure 1 Schematic diagram of magnetic field distribution effect when the decorative part of the electronic device is made of metal and the NFC coil is set in the third part;

[0045] Figure 11 for Figure 1 Schematic diagram of magnetic field distribution effect when the decorative part of the electronic device is made of metal and the NFC coil is not provided with a third part;

[0046] Figure 12 A schematic diagram of the wiring distribution of a display screen provided in some embodiments of the present application;

[0047] Figure 13 A schematic diagram of the relationship between an NFC antenna and a display screen provided in some embodiments of the present application;

[0048] Figure 14 A schematic diagram of another relationship between an NFC antenna and a display screen provided in some embodiments of the present application;

[0049] Figure 15 for Figure 2 Schematic diagram of the relationship between the magnetic shielding plate of the NFC antenna, the screen circuit board and the display screen in the host shown;

[0050] Figure 16 for Figure 15Schematic diagram of the cross-sectional structure;

[0051] Figure 17 for Figure 16 A magnified schematic diagram of the structure at G in the middle;

[0052] Figure 18 A schematic diagram of the circuit structure of an NFC antenna provided in some embodiments of the present application;

[0053] Figure 19 A schematic diagram of the relationship between the first circuit board, the second circuit board, and the NFC coil provided in some embodiments of the present application;

[0054] Figure 20 Another schematic diagram of the relationship between the first circuit board, the second circuit board, and the NFC coil provided in some embodiments of the present application;

[0055] Figure 21 This is a schematic diagram of another relationship between an NFC coil and a display screen provided in some embodiments of the present application.

[0056] Reference numerals:

[0057] 100. Electronic device; 10. Host; 20. Watch strap; 30. Driver module; 40. Display IC module; 50. Connector; 60. Ambient light module;

[0058] 1. Bottom shell; 11. Mounting slot;

[0059] 2. Motherboard;

[0060] 3. Translucent cover;

[0061] 4. Display screen; 41. Touch module; 42. Display panel; 43. Metal shielding layer; 431. Avoidance through hole;

[0062] 5. NFC antenna; 51. NFC coil; 511. First part; 511A. First section; 511B. Coil section; 511C. First set of coil sections; 511D. Second set of coil sections; 511E. Second section; 512. Second part; 512A. First coil section; 512B. Second coil section; 513. Third part; 52. Magnetic isolation sheet; 521. QR code; 53. NFC chip; 54. NFC filter module; 55. NFC matching module;

[0063] 6. Decorative parts;

[0064] 7. Screen circuit board; 71. First conductive part; 711. Second connecting line; 712. First connecting line; 72. Second conductive part; 73. Device area; 731. First device area; 732. Second device area; 733. Third device area; 74. Non-device area; 75. Extension part; 76. First metal layer; 77. Second metal layer; 78. First shielding member; 781. First ground hole; 782. First shielding layer; 79. Second shielding member; 791. Second ground hole; 7A. First circuit board; 7B. Second circuit board. DETAILED DESCRIPTION

[0065] In the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0066] In the embodiments of the present application, it should be understood that the directional terms mentioned, such as "up", "down", "left", "right", "inside", "outside", etc., are only references to the directions in the drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present application, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0067] In the embodiments of this application, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first," "second," "third," or "fourth" may explicitly or implicitly include one or more of the features.

[0068] In the embodiments of the present application, the terms "comprises," "comprising," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0069] In the embodiments of this application, "and / or" is simply a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0070] In the embodiments of the present application, it should be noted that the descriptions "vertical" and "parallel" respectively represent approximately vertical and approximately parallel within a certain error range, and the error range can be a range where the deviation angle is less than or equal to 5°, 8° or 10° relative to absolute vertical and absolute parallel, respectively, and no specific limitation is made here.

[0071] The present application provides an electronic device 100, which is a type of electronic device 100 having an NFC antenna. Specifically, the electronic device 100 can be a portable electronic device or other suitable electronic device. For example, the electronic device 100 can be a mobile phone, a tablet personal computer, a portable computer, a smart headset, a smart speaker, a smart watch, a smart bracelet, a personal digital assistant (PDA), a point of sale (POS), etc.

[0072] See also Figure 1 , Figure 1 This is a perspective view of an electronic device 100 provided in some embodiments of the present application. In this embodiment, the electronic device 100 is a smartwatch. The electronic device 100 includes a main unit 10 and a watch strap 20. The materials of the watch strap 20 include, but are not limited to, metal, nylon, and plastic.

[0073] It is understandable that Figure 1 Only some components of the electronic device 100 are schematically shown, and the actual shapes, sizes, positions and structures of these components are not affected by the present invention. Figure 1 restrictions.

[0074] See also Figure 2 , Figure 2 for Figure 1 The figure shows an exploded view of the main unit 10 in the electronic device 100. In this embodiment, the main unit 10 includes a bottom housing 1, a mainboard 2, a light-transmitting cover 3, a display 4, an NFC antenna 5, and a decorative element 6. In other embodiments, the electronic device 100 may not include the bottom housing 1, mainboard 2, light-transmitting cover 3, and decorative element 6.

[0075] The bottom shell 1 is fixed to the strap 20. The material of the bottom shell 1 includes but is not limited to plastic and metal. The bottom shell 1 is used to protect the internal electronic components of the smart watch. A mounting groove 11 is formed in the bottom shell 1. The light-transmitting cover plate 3 covers and is fixed to the opening of the mounting groove 11. The display screen 4 is stacked with the light-transmitting cover plate 3 and is located in the mounting groove 11. The light-transmitting cover plate 3 and the display screen 4 can form the screen of the electronic device 100, and the display screen 4 is used to display graphics, videos, etc. The light-transmitting cover plate 3 is mainly used to protect the display screen 4 and prevent dust. The material of the light-transmitting cover plate 3 includes but is not limited to glass.

[0076] The display screen 4 can be a flexible display screen or a rigid display screen. For example, the display screen 4 can be an organic light-emitting diode (OLED) display screen, an active-matrix organic light-emitting diode (AMOLED) display screen, a mini organic light-emitting diode (OLED) display screen, a micro organic light-emitting diode (OLED) display screen, a micro organic light-emitting diode (OLED) display screen, a quantum dot light-emitting diode (QLED) display screen, or a liquid crystal display (LCD).

[0077] The decorative member 6 is fixed to the edge of the transparent cover plate 3 and surrounds the display screen 4, thereby shielding the edge of the transparent cover plate 3 and improving the aesthetics of the electronic device 100. The decorative member 6 can be made of non-metallic materials such as plastic and ceramic. The decorative member 6 can also be made of metals such as aluminum, iron, and aluminum alloys.

[0078] The NFC antenna 5 is installed in the installation slot 11. The NFC antenna 5 is provided on the non-display side of the display screen 4 (eg Figure 2 The non-display side of the display screen 4 is the side of the display screen 4 facing away from the light-transmitting cover plate 3. Accordingly, the display side of the display screen 4 (such as Figure 2 The side B shown in the figure is the side of the display screen 4 facing the transparent cover plate 3. The NFC antenna 5 is used to radiate radio frequency signals toward the side close to the display screen 4 and receive radio frequency signals from the side close to the display screen 4, so that the electronic device 100 can establish a communication connection with other electronic devices 100 (such as a POS machine) located on the side of the display screen 4 of the electronic device 100.

[0079] The mainboard 2 is mounted in the mounting slot 11. The mainboard 2 can be located on the side of the NFC antenna 5 facing away from the display screen 4. The mainboard 2, NFC antenna 5, display screen 4, and light-transmitting cover 3 can be stacked in this order. The mainboard 2 is electrically connected to the display screen 4 and NFC antenna 5 to control their operation.

[0080] See also Figure 3 , Figure 3 for Figure 2 The figure shows the relationship between the screen circuit board and the display screen 4 in the host 10. In this embodiment, the NFC antenna 5 includes an NFC coil 51, which serves as the signal transmitter and receiver for the NFC antenna 5. The electronic device 100 also includes a screen circuit board 7. The screen circuit board 7 is located on the non-display side of the display screen 4. Figure 3 The wiring of the NFC coil 51 is only schematically shown. The actual shape, size, position and structure of the NFC wiring are not affected by the Figure 3 restrictions.

[0081] The screen circuit board 7 includes a first conductive portion 71 and a second conductive portion 72. The first conductive portion 71 is electrically connected to the display screen 4. The screen circuit board 7 is electrically connected to the display screen 4 through the first conductive portion 71, and is used to transmit signals to the display screen 4 to ensure the normal operation of the display screen 4. The second conductive portion 72 forms the NFC coil 51 of the NFC antenna 5. In other words, the NFC coil 51 of the NFC antenna 5 is a part of the screen circuit board 7. For example, the NFC coil 51 is a metal layer of the screen circuit board 7. Specifically, the NFC coil 51 is at least partially formed into a ring structure spirally wound along the plane in which the metal layer is located. In some other examples, the NFC coil 51 can also be a conductive cable with a spiral ring structure. The NFC coil 51 can also be a metal layer with a spiral ring structure provided on a substrate.

[0082] By placing the NFC coil 51 on the screen circuit board 7, there is no need for a separate substrate to support the NFC coil 51. This reduces the overall thickness of the NFC coil 51 and the screen circuit board 7, and thus the thickness of the electronic device 100, thereby meeting the requirements for a thin and lightweight design of the electronic device 100. Specifically, the overall thickness of the NFC coil 51 and the screen circuit board 7 can be reduced by 0.08 mm.

[0083] Among them, the screen circuit board 7 can be a hard circuit board, a flexible circuit board, or a hard-soft combination circuit board. The screen circuit board 7 can use an FR-4 dielectric board, a Rogers dielectric board, a mixed dielectric board of FR-4 and Rogers, and so on. Here, FR-4 is a code name for a grade of flame-retardant material, and the Rogers dielectric board is a high-frequency board. In this way, the manufacturing accuracy of the NFC coil 51 can be guaranteed. The shape of the screen circuit board 7 includes but is not limited to a rectangle, square, triangle, circle, ellipse, polygon, irregular shape, and the like.

[0084] In addition, the NFC coil 51 can be a square ring structure, a circular ring structure, a triangular ring structure, a polygonal ring structure, an irregular ring structure, etc., which is not specifically limited here. Figure 3 Only an example in which the NFC coil 51 has an irregular ring structure is shown, which is not to be considered as a special limitation to the present application.

[0085] Furthermore, the NFC coil 51 includes multiple turns of conductive wire. Specifically, the NFC coil 51 may include two turns, three turns, four turns, or five or more turns of conductive wire, which is not specifically limited here.

[0086] Please continue reading Figure 3 The electronic device 100 further includes a driving module 30, a display IC module 40 and a connector 50. The driving module 30 is connected to the screen circuit board 7 and is electrically connected to the display screen 4 through the first conductive part 71. The first conductive part 71 may include a third connecting line ( Figure 3 The driving module 30 is connected to the display screen 4 via a third connecting line.

[0087] In some embodiments, the orthographic projection of the driver module 30 on the plane of the display screen 4 does not overlap with the orthographic projection of the NFC coil 51 on the plane of the display screen 4. In other words, the orthographic projection of the driver module 30 on the plane of the display screen 4 and the orthographic projection of the NFC coil 51 on the plane of the display screen 4 do not overlap. In other words, the orthographic projection of the driver module 30 on the plane of the display screen 4 is not within the orthographic projection of the NFC coil 51 on the plane of the display screen 4. The orthographic projection of the driver module 30 on the plane of the display screen 4 is also not partially within the orthographic projection of the NFC coil 51 on the plane of the display screen 4. The orthographic projection of the NFC coil 51 on the plane of the display screen 4 is also not within the orthographic projection of the driver module 30 on the plane of the display screen 4. This reduces interference caused by the driver module 30 on the signals transmitted and received by the NFC coil 51, thereby improving the performance of the NFC coil 51 and, consequently, the performance of the NFC antenna 5.

[0088] In some embodiments, to further improve the performance of the NFC antenna 5, please continue to refer to Figure 3The screen circuit board 7 has a device area 73 and a non-device area 74. The device area 73 and the non-device area 74 can be arranged opposite each other. The driver module 30 and the first conductive portion 71 are located in the device area 73. This allows the driver module 30 and the first conductive portion 71 to be concentrated in the device area 73, thereby preventing them from being too dispersed and occupying a large area. This reduces the impact of the driver module 30 and the first conductive portion 71 on the performance of the NFC coil 51.

[0089] The NFC coil 51 includes a first portion 511 and a second portion 512 arranged sequentially along its circumference. The first portion 511 is located along the edge of the non-device area 74 facing away from the device area 73, while the second portion 512 is located within the device area 73. The two ends of the first portion 511 are connected to the two ends of the second portion 512, forming a ring-shaped coil. Compared to an NFC coil located only in the non-device area, the placement of the first portion 511 along the edge of the non-device area 74 facing away from the device area 73 and the placement of the second portion 512 within the device area 73 allows the NFC coil 51 to enclose a larger area, thereby increasing the radiation range of the NFC coil 51 and improving the performance of the NFC coil, and thus the performance of the NFC antenna 5.

[0090] Furthermore, since the driver module 30 and the first conductive portion 71 are concentrated in the device area 73, the non-device area 74 has no or fewer electronic devices. Therefore, the non-device area 74 has a smaller impact on the magnetic field strength of the NFC coil 51, thereby improving the performance of the NFC coil 51. Specifically, the area of the non-device area 74 can be made larger than that of the device area 73 to arrange the various components of the device area 73 (e.g., the driver module 30, the first conductive portion 71, etc.) more compactly, thereby further reducing the impact of the device area 73 on the performance of the NFC coil 51 and further improving the performance of the NFC coil 51.

[0091] The connector 50 is electrically connected to the input terminal of the driver module 30. Specifically, the first conductive portion 71 includes a second connecting line 711, and the connector 50 can be electrically connected to the input terminal of the driver module 30 via the second connecting line 711. The connector 50 can also be electrically connected to the input terminal of the driver module 30 via other metal layers on the screen circuit board 7. This is not specifically limited here.

[0092] The connector 50 can be connected to the screen circuit board 7. For example, the screen circuit board 7 includes an extension portion 75, and the connector 50 is provided on the extension portion 75. The extension portion 75 can be in the shape of a strip, or in the shape of a square, a circle, an ellipse, etc.

[0093] Furthermore, the connector 50 can be located on the side of the device area 73 facing away from the non-device area 74 , so that the connector 50 is closer to the driving module 30 , thereby reducing the length of the second connection line 711 , reducing the space occupied by the second connection line 711 , and reducing the impact of the second connection line 711 on the performance of the NFC coil 51 .

[0094] The connector 50 is also connected to the motherboard 2. Specifically, the connector 50 can be snap-fitted onto the motherboard 2 or connected to the motherboard 2 via a connecting wire, a flexible circuit board, etc. This is not specifically limited here. The connector 50 can be a BTB connector 50, a ZIF connector 50, etc.

[0095] The motherboard 2 can transmit the graphics, images and other information that need to be displayed to the driver module 30 in the form of digital signals. The driver module 30 is used to convert the received digital signal into an analog signal, that is, to convert the received image data into a signal suitable for display on the display screen 4, and transmit the converted signal to the display screen 4 to control the display screen 4 to display graphics, videos and other content.

[0096] The display IC module 40 is electrically connected to the output terminal of the driver module 30. Specifically, the first conductive portion 71 further includes a first connecting line 712, through which the display IC module 40 can be electrically connected to the output terminal of the driver module 30. The display IC module 40 can also be electrically connected to the output terminal of the driver module 30 through other metal layers in the screen circuit board 7.

[0097] The display IC module 40 can be connected to the display screen 4 to reduce the impact of the display IC module 40 on the performance of the NFC coil 51. The display IC module 40 can be located on the side of the device area 73 facing away from the non-device area 74, so that the display IC module 40 is closer to the driver module 30, thereby reducing the length of the first connecting line 712, reducing the space occupied by the first connecting line 712, and thus reducing the impact of the first connecting line 712 on the performance of the NFC coil 51.

[0098] The display IC module 40 is also electrically connected to the display screen 4 through the first conductive portion 71. Specifically, the first conductive portion 71 also includes a fourth connecting line ( Figure 3 (not shown), the display IC module 40 can be electrically connected to the display screen 4 via a fourth connection line. The driver module 30 can also transmit the display information received from the motherboard 2 to the display IC module 40. The display IC module 40 controls the brightness and color of the display screen 4 based on the received display information to ensure the display effect and image quality of the display screen 4.

[0099] It is understandable that the first connection line 712, the second connection line 711, the third connection line and the fourth connection line are different connection lines. In addition, the first connection line 712, the second connection line 711, the third connection line and the fourth connection line can be multiple.

[0100] In some embodiments, in order to make the arrangement of the driving module 30 and the first conductive portion 71 more reasonable and further reduce the impact of the device area 73 on the performance of the NFC coil 51, please continue to refer to Figure 3 The device area 73 includes a first device area 731, a second device area 732, and a third device area 733. The first device area 731 is located at the end of the screen circuit board 7 facing the display IC module 40. The third device area 733 is located at the end of the screen circuit board 7 facing the connector 50. The second device area 732 is located between the first device area 731, the third device area 733, and the non-device area 74. The driver module 30 is located in the third device area 733, and at least a portion of the first conductive portion 71 is located in the first device area 731 and the second device area 732. Specifically, the first connecting line 712 of the first conductive portion 71 sequentially passes through the first device area 731 and the second device area 732 to connect the driver module 30 with the display IC module 40. The third connecting line can pass through the second device area 732, or through the second device area 732 and the first device area 731 to connect the driver module 30 with the display screen 4. The fourth connecting line can pass through the first device area 731 to connect the display IC module 40 with the display screen 4. The second connection line 711 may pass through the third device area 733 and the extension portion 75 of the screen circuit board 7 to connect the driving module 30 and the connector 50 .

[0101] Through the above arrangement, the driving module 30 is close to the edge of the screen circuit board 7 and is relatively close to the display IC module 40 and the connector 50. In this way, the lengths of the first connecting line 712 and the third connecting line can be reduced, so that the first conductive part 71 occupies a smaller area, and the connections between the driving module 30 and the display IC module 40, between the driving module 30 and the connector 50, and between the driving module 30 and the display screen 4 can be achieved, thereby further reducing the impact of the various components in the device area 73 on the performance of the NFC coil 51.

[0102] In some embodiments, in order to further reduce the area occupied by the first conductive portion 71, the length direction of the driving module 30 (eg Figure 3 The direction X1 shown in FIG) is the same as the length direction of the display IC module 40 (as shown in FIG). Figure 3The angle θ between the driving module 30 and the display IC module 40 (in the direction X2 shown in FIG) is greater than or equal to 0° and less than or equal to 90°. For example, the angle θ can be 0°, 10°, 20°, 30°, 40°, 50°, 60°, 70°, 80°, 90°, and so on. This can further reduce the distance between the driving module 30 and the display IC module 40, thereby further reducing the length of the first connecting line 712, thereby reducing the area occupied by the first conductive portion 71, and reducing the impact of the components in the device area 73 on the performance of the NFC coil 51.

[0103] In some embodiments, based on the above, in order to further increase the area of the area surrounded by the NFC coil 51 to further improve the performance of the NFC coil 51, please continue to refer to Figure 3 The second portion 512 of the NFC coil 51 includes a first coil segment 512A and a second coil segment 512B. The first portion 511, the first coil segment 512A, and the second coil segment 512B are connected end to end. The first coil segment 512A is located in the first device area 731, and the second coil segment 512B is located in the third device area 733. As a result, because the first portion 511 is located along the edge of the non-device area 74 that faces away from the device area 73, the area enclosed by the first portion 511, the first coil segment 512A, and the second coil segment 512B is partially located in the non-device area 74, and the remaining portion is located in the device area 73. This allows the area enclosed by the first portion 511, the first coil segment 512A, and the second coil segment 512B to be larger, thereby improving the performance of the NFC coil 51.

[0104] For some examples, see Figure 3 , the second coil segment 512B is located on the side of the driving module 30 facing away from the non-device area 74. In this way, the second coil segment 512B is located at the edge of the third device area 733 of the screen circuit board 7, thereby further increasing the area surrounded by the NFC coil 51 to improve the performance of the NFC coil 51. In other examples, please refer to Figure 4 , Figure 4 for Figure 3 The figure shows another schematic diagram of the positional relationship between the second coil segment 512B and the driver module 30 in the screen circuit board 7. The second coil segment 512B can also be located on the side of the driver module 30 facing the non-device area 74. In this case, the area enclosed by the NFC can also be maintained, improving the performance of the NFC coil 51.

[0105] In some examples, the first coil segment 512A can be disposed along an edge of the first device region 731 to further increase the area of the NFC coil 51 and improve the performance of the NFC coil 51 .

[0106] In some embodiments, see Figure 5 , Figure 5 for Figure 3 The screen circuit board 7 is shown as a schematic diagram of a cross-sectional structure. The screen circuit board 7 includes a first metal layer 76 and a second metal layer 77 stacked together. The first conductive portion 71 is provided on the first metal layer 76, and the second conductive portion 72 (i.e., the NFC coil 51) is provided on the second metal layer 77. In other words, the first conductive portion 71 and the NFC coil 51 are provided on different layers. In this way, the first conductive portion 71 and the NFC coil 51 can be prevented from interfering with each other in spatial position, thereby facilitating the arrangement of the first conductive portion 71 and the NFC coil 51. In some other examples, the first conductive portion 71 and the second conductive portion 72 can also be located in the same metal layer. In this case, the first conductive portion 71 and the second conductive portion 72 are respectively located in different areas on the metal layer.

[0107] The number of the first metal layer 76 can be one or multiple layers, such as two, three, four, or five layers. When the first metal layer 76 is multiple layers, all of the multiple first metal layers 76 can serve as the first conductive portion 71, and the first connecting line 712, the second connecting line 711, the third connecting line, and the fourth connecting line can be located in the same metal layer, in different metal layers, or partially in the same metal layer.

[0108] Furthermore, the NFC coil 51 can be positioned along the edge of the second metal layer 77 to enclose a larger area and improve the performance of the NFC coil 51. To minimize the impact of coupling between the first connecting wire 712 and the NFC coil 51 on the performance of the NFC coil 51, the orthographic projection of the first connecting wire 712 on the plane of the screen circuit board 7 can be made to intersect with the orthographic projection of the first coil segment 512A on the plane of the screen circuit board 7. In other words, the orthographic projection of the portion of the first connecting wire 712 located in the first device area 731 on the plane of the screen circuit board 7 is not parallel to or overlaps with the orthographic projection of the first coil segment 512A on the plane of the screen circuit board 7. This reduces the proximity between the first connecting wire 712 and the first coil segment 512A, minimizing the impact of the magnetic field generated by the coupling between the first connecting wire 712 and the first coil segment 512A on the signal transmission and reception performance of the NFC coil 51, thereby improving the performance of the NFC coil 51.

[0109] In some examples, the orthographic projection of the first connecting line 712 on the plane where the screen circuit board 7 is located intersects and is perpendicular to the orthographic projection of the first coil segment 512A on the plane where the screen circuit board 7 is located.

[0110] Furthermore, to minimize the impact of coupling between the second connecting line 711 and the NFC coil 51 on the performance of the NFC coil 51, the orthographic projection of the second connecting line 711 on the plane of the screen circuit board 7 can be made to intersect with the orthographic projection of the second coil segment 512B on the plane of the screen circuit board 7. In other words, the orthographic projection of the portion of the second connecting line 711 located in the third device area 733 on the plane of the screen circuit board 7 is not parallel to or overlaps with the orthographic projection of the second coil segment 512B on the plane of the screen circuit board 7. This reduces the proximity between the second connecting line 711 and the second coil segment 512B, minimizing the impact of the magnetic field generated by the coupling between the second connecting line 711 and the second coil segment 512B on the signal transmission and reception performance of the NFC coil 51, thereby improving the performance of the NFC coil 51.

[0111] In some examples, the orthographic projection of the second connecting line 711 on the plane where the screen circuit board 7 is located intersects and is perpendicular to the orthographic projection of the second coil segment 512B on the plane where the screen circuit board 7 is located.

[0112] In some embodiments, in order to further reduce the impact of the first conductive portion 71 on the performance of the NFC coil 51, please continue to refer to Figure 3 The screen circuit board 7 is also provided with a first shielding member 78. The first shielding member 78 is provided between the first connecting line 712 and the first coil segment 512A. The first shielding member 78 shields the interference signal between the first connecting line 712 and the first coil segment 512A, thereby reducing the impact of the first connecting line 712 on the performance of the first coil segment 512A, thereby improving the performance of the NFC coil 51. In some examples, please continue to refer to Figure 3 The first shielding member 78 can be a first grounding hole 781. The first grounding hole 781 is located in the area of the screen circuit board 7 between the first connecting line 712 and the first coil segment 512A. The first grounding hole 781 provides an electromagnetic compatibility shielding effect. By providing the first grounding hole 781, the electromagnetic interference generated by the first connecting line 712 on the NFC coil 51 can be reduced, thereby improving the performance of the NFC coil 51. In other examples, the first shielding member 78 can also be a grounded metal member.

[0113] For some examples, see Figure 6 , Figure 6 for Figure 3Another cross-sectional structural schematic diagram of the screen circuit board 7 is shown. The first shielding member 78 may include a first shielding layer 782. The first shielding layer 782 is disposed between the first metal layer 76 and the second metal layer 77. Since the first conductive portion 71 is disposed on the first metal layer 76 and the NFC coil 51 is disposed on the second metal layer 77, the first shielding layer 782 is disposed between the first metal layer 76 and the second metal layer 77. The first shielding layer 782 can shield the electromagnetic interference generated by the first conductive portion 71, thereby reducing the impact of electromagnetic interference on the performance of the NFC coil 51 and improving the performance of the NFC coil 51. The first shielding layer 782 includes, but is not limited to, a metal layer.

[0114] Also, please continue reading Figure 3 The screen circuit board 7 is also provided with a second shielding member 79. The second shielding member 79 is provided between the second connecting line 711 and the second coil segment 512B. The second shielding member 79 shields the interference signal between the second connecting line 711 and the second coil segment 512B, thereby reducing the impact of the second connecting line 711 on the performance of the second coil segment 512B, thereby improving the performance of the NFC coil 51. In some examples, please continue to refer to Figure 3 The second shielding member 79 can be a second grounding hole 791. The second grounding hole 791 is provided in the area of the screen circuit board 7 between the second connecting line 711 and the second coil segment 512B. The second grounding hole 791 provides an electromagnetic compatibility shielding effect. By providing the second grounding hole 791, the electromagnetic interference generated by the second connecting line 711 on the NFC coil 51 can be reduced, thereby improving the performance of the NFC coil 51. In other examples, the second shielding member 79 can also be a grounded metal member, etc.

[0115] In some examples, the second shield 79 may include a second shielding layer ( Figure 3 (not shown). The second shielding layer is disposed between the first metal layer 76 and the second metal layer 77. Since the first conductive portion 71 is disposed on the first metal layer 76 and the NFC coil 51 is disposed on the second metal layer 77, the second shielding layer is disposed between the first metal layer 76 and the second metal layer 77. The second shielding layer can shield the electromagnetic interference generated by the first conductive portion 71, thereby reducing the impact of electromagnetic interference on the performance of the NFC coil 51 and improving the performance of the NFC coil 51. The second shielding layer includes, but is not limited to, a metal layer. Furthermore, the second shielding layer and the first shielding layer 782 can be the same layer or different layers stacked together.

[0116] In some embodiments, see Figure 7 , Figure 7 for Figure 3The NFC coil 51 of the screen circuit board 7 shown in the figure has a third section added to its structure. The first section 511 includes a first segment 511A. The first segment 511A is a section of the first section 511 along its own circumference, that is, the first segment 511A extends along the circumference of the first section 511.

[0117] First section 511A includes a multi-turn coil section 511B. Multi-turn coil section 511B refers to multiple turns of wire segments arranged radially along first portion 511 within first section 511A. Multi-turn coil sections 511B comprise a first group of coil sections 511C and a second group of coil sections 511D. First group of coil sections 511C comprises a portion of multi-turn coil sections 511B, while second group of coil sections 511D comprises another portion of multi-turn coil sections 511B.

[0118] The first coil segment 511C is connected to the second portion 512. Exemplarily, the first portion 511 further includes a second segment 511E. The second segment 511E may be in two parts, one part connected between one end of the first coil segment 511C and one end of the second portion 512, and the other part connected between the other end of the first coil segment 511C and the other end of the second portion 512, so that the first coil segment 511C is connected to the second portion 512 via the second segment 511E.

[0119] The NFC coil 51 also includes a third portion 513. The ends of the third portion 513 are connected to the ends of the second coil segment 511D. The third portion 513 is located in the non-device area 74. This enhances the magnetic field strength of the NFC coil 51 in the non-device area 74, thereby improving the signal transmission and reception performance of the NFC coil 51.

[0120] For details, please refer to Figures 8 to 11 , Figure 8 for Figure 1 The schematic diagram of the magnetic field distribution effect when the decorative piece 6 of the electronic device 100 is made of non-metallic material and the NFC coil 51 is provided with the third part 513 is shown. Figure 9 for Figure 1 The schematic diagram of the magnetic field distribution effect when the decorative piece 6 of the electronic device 100 is made of non-metallic material and the NFC coil 51 is not provided with the third part 513 is shown. Figure 10 for Figure 1 The schematic diagram of the magnetic field distribution effect when the decorative piece 6 of the electronic device 100 is made of metal and the NFC coil 51 is provided with the third part 513 is shown. Figure 11 for Figure 1The diagram shows the magnetic field distribution effect when the decorative piece 6 of the electronic device 100 is made of metal and the NFC coil 51 is not provided with the third part 513 .

[0121] according to Figure 8 and Figure 9 It can be seen that when the decorative part 6 is made of non-metallic material, the NFC coil 51 is provided with the non-device area 74 (such as Figure 8 The magnetic field in the region M1) is significantly greater than that in the non-device region 74 (eg, Figure 9 The magnetic field in the region M2 is more concentrated, so the magnetic field in the non-device region 74 when the NFC coil 51 is provided with the third portion 513 is stronger than the magnetic field in the non-device region 74 when the NFC coil 51 is not provided with the third portion 513. Figure 10 and Figure 11 It can be seen that when the decorative part 6 is made of metal, the magnetic field of the non-device area 74 (such as Figure 10 The area N1 in FIG. 5 is also significantly larger than the non-device area 74 (eg, Figure 11 The magnetic field in the area N2 in the NFC coil 51 is more concentrated. Therefore, when the NFC coil 51 is provided with the third portion 513, the magnetic field in the non-device area 74 is also stronger than when the NFC coil 51 is not provided with the third portion 513.

[0122] It can be seen that no matter whether the decorative part 6 is made of metal or non-metal, the NFC coil 51 is provided with the third part 513, which can enhance the magnetic field strength of the NFC coil 51 and improve the performance of the NFC coil 51. It should be noted that when the decorative part 6 is made of metal, the decorative part 6 will have a certain impact on the magnetic field of the NFC coil 51, thereby having a certain impact on the performance of the NFC coil 51. Figure 10 and Figure 11 It can be seen that Figure 10 The magnetic field strength in the N1 region is compared to Figure 11 The increase in magnetic field intensity in the middle N2 region is quite significant.

[0123] Table 1

[0124]

[0125] In addition, please refer to Table 1, which shows the electronic device 100 (i.e. Figure 7Comparison of the sensing distances of the electronic device 100 of the present application when reading different types of cards (shown in the embodiment shown) with the sensing distances of the electronic device 100 of the prior art when reading different types of cards. As can be seen from Table 1, the sensing distance of the electronic device 100 of the present application is significantly improved compared to the electronic device 100 of the prior art. The sensing distance gain is the ratio of the sensing distance of the electronic device 100 of the present application to the sensing distance of the electronic device 100 of the prior art, minus 1.

[0126] In some embodiments, because the display screen 4 needs to display graphics, videos, etc., a large number of pixels, such as semiconductor light-emitting diode pixels, are arranged within the display screen 4. These pixels need to be connected by connecting wires and connected to the screen circuit board 7 via connecting wires. The wiring of the display screen 4 can also affect the radio frequency signal of the NFC antenna 5, thereby reducing the performance of the NFC antenna 5.

[0127] For details, please refer to Figure 12 , Figure 12 The wiring distribution diagram of the display screen 4 provided in some embodiments of the present application. The display screen 4 includes a display part (such as Figure 12 The area E shown in FIG) and the non-display portion (such as Figure 12 Region F) is shown in FIG.

[0128] It is understandable that Figure 12 The density of the wiring of the display part and the non-display part of the display screen 4 is only schematically shown, and the actual shape, actual size, actual position and actual structure of these wirings are not affected by the present invention. Figure 12 The solid lines in area E represent the wiring of the display part, and the solid lines in area F represent the wiring of the non-display part.

[0129] It should be noted that the display portion refers to the area of the display screen 4 used to display graphics, videos, and other content. The display portion is provided with a large number of pixels for displaying graphics, videos, and other content. That is, a large number of pixels are provided, and when all of the pixels are functioning properly, the area capable of displaying graphics, videos, and other content is the display portion. The non-display portion can be provided outside the display portion. The non-display portion is typically not provided with pixels for displaying graphics, videos, and other content. Therefore, the non-display portion is the area that does not display graphics, videos, and other content. In other words, the area of the display screen 4 other than the display portion is the non-display portion.

[0130] Because the display portion of the display screen 4 is provided with a large number of pixels, the wiring density of the display portion is relatively high, while the non-display portion of the display screen 4 is generally provided with only a few connecting wires connecting the display screen 4 with other devices, such as the screen circuit board 7, or connecting other components on the display screen 4, such as buttons, with the screen circuit board 7. Therefore, the wiring density of the non-display portion of the display screen 4 is lower than that of the display portion.

[0131] Based on this, the NFC antenna 5 can be aligned with the non-display portion of the display screen 4 to reduce the impact of the display screen 4's wiring on the performance of the NFC antenna 5. For details, please refer to Figure 13 , Figure 13 This diagram illustrates the relationship between the NFC antenna 5 and the display screen 4 provided in some embodiments of the present application. At least a portion of the orthographic projection of the NFC antenna 5 on the plane of the display screen 4 is located in the non-display area. By placing at least a portion of the orthographic projection of the NFC antenna 5 on the plane of the display screen 4 in the non-display area, the impact of the display screen 4's wiring on the NFC antenna 5 can be reduced, thereby improving the performance of the NFC antenna 5.

[0132] Table 2

[0133]

[0134] Also, see Figure 14 and Table 2, Figure 14 Another schematic diagram of the relationship between the NFC antenna 5 and the display screen 4 provided in some embodiments of the present application, Figure 14 In the figure, the orthographic projection of the NFC antenna 5 on the plane where the display screen 4 is located is located in the display part. Figure 13 The NFC antenna 5 is set in the same way as Figure 14 The performance comparison results of the arrangement of the NFC antenna 5 in Table 2 show that at least part of the orthographic projection of the NFC antenna 5 on the plane where the display screen 4 is located is located in the non-display part (i.e. Figure 13 In the case of the NFC antenna 5 being set in the middle, the Q value of the NFC antenna 5 is large, that is, the loss of the NFC antenna 5 is small at this time, and the performance of the NFC antenna 5 is better.

[0135] It should be noted that the Q value of the NFC antenna 5 refers to the ratio of the imaginary impedance to the real impedance of the NFC antenna 5. The Q value of the NFC antenna 5 is an important parameter for measuring the quality of the NFC antenna 5. A higher Q value indicates lower loss and higher power of the NFC antenna 5. The real part of the NFC antenna 5 mainly refers to the resistance, while the imaginary part refers to the inductance.

[0136] It should be noted that, in order to conveniently illustrate the relationship between the NFC antenna 5 and the display screen 4, Figure 13 and Figure 14Only the display portion and the non-display portion of the display screen 4 are shown, and the wiring of the display screen 4 is not shown.

[0137] In some examples, at least a portion of the orthographic projection of the NFC coil 51 on the plane of the display screen 4 is located in the non-display portion. This allows the wiring of the non-display portion of the display screen 4 to have a smaller impact on the magnetic field of the NFC coil 51 than on the display portion. This reduces the impact of the wiring of the display screen 4 on the performance of the NFC coil 51, thereby improving the performance of the NFC coil 51.

[0138] For example, please see Figure 3 The first portion 511 of the NFC coil 51 is arranged along the edge of the non-device area 74 facing away from the device area 73, so that the first portion 511 can be located as much as possible in the non-display part of the display screen 4, thereby reducing the impact of the wiring of the display screen 4 on the NFC coil 51 and improving the performance of the NFC coil 51.

[0139] In some embodiments, see Figure 15 , Figure 15 for Figure 2 The figure shows the relationship between the magnetic shielding plate 52 of the NFC antenna 5, the screen circuit board 7, and the display screen 4 in the host 10. The NFC antenna 5 also includes the magnetic shielding plate 52. The magnetic shielding plate 52 is disposed on the side of the NFC coil 51 facing away from the display screen 4. Specifically, the magnetic shielding plate 52 is disposed on the side of the screen circuit board 7 facing away from the display screen 4.

[0140] The magnetic isolation sheet 52 covers at least a portion of the NFC coil 51. Exemplarily, the orthographic projection of the magnetic isolation sheet 52 on the plane where the screen circuit board 7 is located covers the first device area 731, the second device area 732 and the non-device area 74. That is, the magnetic isolation sheet 52 is stacked with the screen circuit board 7. In order to avoid the driving module 30 provided on the screen circuit board 7, the magnetic isolation sheet 52 cannot cover the third device area 733. It should be noted that the orthographic projection of the magnetic isolation sheet 52 on the plane where the screen circuit board 7 is located can cover the entire first device area 731, or can cover part of the first device area 731.

[0141] The magnetic isolation sheet 52 is used to reduce the absorption of the magnetic field of the NFC coil 51 by the metal structure on the side of the magnetic isolation sheet 52 away from the NFC coil 51. At the same time, the magnetic isolation sheet 52 can increase the magnetic field strength on the side of the NFC coil 51 facing the display screen 4, so that the NFC antenna 5 has signal transmission and reception directionality, thereby increasing the electromagnetic induction distance. The magnetic isolation sheet 52 may include a magnetic material. For example, the magnetic isolation sheet 52 may be ferrite. In other embodiments, the magnetic isolation sheet 52 may include at least one of magnetic materials such as Nd-Fe-B, samarium, Al-Ni-Co, sendust (Fe-Si-Al) and permalloy (Ni-Fe). The shape of the magnetic isolation sheet 52 includes but is not limited to a rectangle, a square, a triangle, a circle, an ellipse, a polygon, and the like.

[0142] In some examples, at least a portion of the orthographic projection of the magnetic shielding sheet 52 on the plane of the display screen 4 is located in the non-display portion. In this way, the wiring of the non-display portion of the display screen 4 has a smaller impact on the anti-interference performance of the magnetic shielding sheet 52 than that of the display portion. This can reduce the impact of the wiring of the display screen 4 on the anti-interference performance of the magnetic shielding sheet 52, thereby improving the anti-interference performance of the magnetic shielding sheet 52 and thus improving the performance of the NFC antenna 5.

[0143] Please continue reading Figure 15 , a QR code 521 is also formed on the magnetic isolation sheet 52. The QR code 521 is used to identify the product information of the magnetic isolation sheet 52. For example, the QR code 521 can identify the manufacturer's information, production date, model, etc. of the magnetic isolation sheet 52. In some examples, the QR code 521 can be printed on the magnetic isolation sheet 52 or etched on the magnetic isolation sheet 52. Compared to printing the QR code 521 on paper and then sticking it on the magnetic isolation sheet 52, by directly forming the QR code 521 on the magnetic isolation sheet 52, the thickness of the paper for printing the QR code 521 can be saved, thereby reducing the thickness of the QR code 521 and the ferrite as a whole, thereby reducing the thickness of the electronic device 100. In addition, the QR code 521 being directly formed on the magnetic isolation sheet 52 can also prevent the QR code 521 from being worn, which makes the QR code 521 difficult to identify. By directly forming the QR code 521 on the magnetic isolation sheet 52, the electronic device 100 can be thinned by 0.02 mm.

[0144] In some examples, the orthographic projection of the QR code 521 on the plane of the screen circuit board 7 does not overlap with the NFC coil 51. That is, the orthographic projection of the QR code 521 on the plane of the screen circuit board 7 does not overlap with the NFC coil 51. In other words, the orthographic projection of the QR code 521 on the plane of the screen circuit board 7 needs to avoid the NFC coil 51. This prevents the QR code 521 from affecting the NFC coil 51, thereby ensuring the performance of the NFC coil 51.

[0145] In some embodiments, please refer to Figure 15The electronic device 100 further includes an ambient light module 60, which is connected to the screen circuit board 7 and electrically connected to the driving module 30. In some examples, the first conductive portion 71 of the screen circuit board 7 further includes a fifth connecting line ( Figure 15 The ambient light module 60 is connected to the driving module 30 via a fifth connecting line. The screen circuit board 7 is located between the fifth connecting line and the NFC coil 51 and a third ground hole ( Figure 15 (not shown) to isolate the fifth connection line from the NFC coil 51 through the third ground hole to reduce the impact of the fifth connection line on the NFC coil 51. In other examples, the screen circuit board 7 can also be connected to the driving module 30 through other metal layers on the screen circuit board 7.

[0146] The ambient light module 60 is used to sense the light conditions around the electronic device 100, such as the light intensity of the surrounding environment, and transmit the sensed light information to the mainboard 2 through the driving module 30, so that the mainboard 2 adjusts the backlight brightness of the display screen 4, thereby reducing the power consumption of the electronic device 100.

[0147] The ambient light module 60 can be located in either the device area 73 or the non-device area 74. The orthographic projection of the ambient light module 60 on the plane of the screen circuit board 7 does not overlap with the orthographic projection of the NFC coil 51 on the plane of the screen circuit board 7. In other words, there is no overlap between the orthographic projection of the ambient light module 60 on the plane of the screen circuit board 7 and the orthographic projection of the NFC coil 51 on the plane of the screen circuit board 7. This reduces interference from the ambient light module 60 with the signals transmitted and received by the NFC coil 51, thereby improving the performance of the NFC coil 51 and, consequently, the NFC antenna 5.

[0148] See also Figure 16 and Figure 17 , Figure 16 for Figure 15 Schematic diagram of the cross-sectional structure, Figure 17 for Figure 16 The structure at point G in the middle is enlarged. The orthographic projection of the magnetic shielding sheet 52 on the plane of the screen circuit board 7 is located within the screen circuit board 7. This allows the entire surface of the magnetic shielding sheet 52 to be supported by the screen circuit board 7 during assembly or transportation of the electronic device 100, thereby preventing the magnetic shielding sheet 52 from breaking and being damaged.

[0149] In some examples, the distance between the outer edge of the magnetic isolation plate 52 and the outer edge of the screen circuit board 7 (eg Figure 17The spacing L1 shown in FIG is greater than or equal to 0.2 mm. For example, the spacing between the outer edge of the magnetic isolation sheet 52 and the outer edge of the screen circuit board 7 is 0.2 mm, 0.25 mm, 0.3 mm, 0.35 mm, 0.4 mm, 0.45 mm, 0.5 mm, etc. This allows the magnetic isolation sheet 52 to be better supported and protected.

[0150] In addition, the display screen 4 has two types of borders: a wide border and an extremely narrow border. The wide border refers to the spacing between the inner edge and the outer edge of the non-display portion of the display screen 4 being greater than or equal to the width required by the current process adhesive. For example, the width required by the current process adhesive may be 0.9 mm. In this case, the spacing between the inner edge and the outer edge of the non-display portion of the display screen 4 may be 0.9 mm, 1 mm, 1.1 mm, 1.2 mm, etc. At this time, the area of the border (i.e., the non-display portion) of the display screen 4 can meet the adhesive requirements of the display screen 4. Setting the spacing between the outer edge of the magnetic isolation sheet 52 and the outer edge of the screen circuit board 7 to be greater than or equal to 0.2 is to protect the magnetic isolation sheet 52.

[0151] An extremely narrow border means that the distance between the inner edge and the outer edge of the non-display part of the display screen 4 is smaller than the width required by the current process glue. For example, the width required by the current process glue may be 0.9mm. At this time, the distance between the inner edge and the outer edge of the non-display part of the display screen 4 is 0.8mm, 0.7mm, 0.6mm, 0.5mm, etc. At this time, the area of the border (i.e., the non-display part) of the display screen 4 cannot meet the gluing requirements of the display screen 4. The glue during gluing will extend to the edge of the screen circuit board 7 and the edge of the magnetic isolation sheet 52. Setting the distance between the outer edge of the magnetic isolation sheet 52 and the outer edge of the screen circuit board 7 to be greater than or equal to 0.2mm can not only protect the magnetic isolation sheet 52, but also make the magnetic isolation sheet 52 avoid the gluing position of the display screen 4. In addition, the orthographic projection of the screen circuit board 7 on the plane where the display screen 4 is located is located within the display part of the display screen 4, so that the screen circuit board 7 avoids the gluing position of the display screen 4. Exemplarily, the distance between the outer edge of the screen circuit board 7 and the outer edge of the display part of the display screen 4 (such as Figure 17 The spacing L2 shown in FIG is greater than or equal to 0.2 mm. For example, the spacing between the outer edge of the screen circuit board 7 and the outer edge of the display portion of the display screen 4 is 0.2 mm, 0.25 mm, 0.3 mm, 0.35 mm, 0.4 mm, 0.45 mm, 0.5 mm, etc.

[0152] In some embodiments, please refer to Figure 15 , the distance between the outer edge of the first part 511 of the NFC coil 51 and the outer edge of the magnetic isolation sheet 52 (such as Figure 15The spacing L3 shown in FIG is greater than or equal to 0.2 mm. For example, the spacing between the outer edge of the first portion 511 and the outer edge of the magnetic shielding sheet 52 can be 0.2 mm, 0.25 mm, 0.3 mm, 0.35 mm, 0.4 mm, 0.45 mm, 0.5 mm, etc. In this way, the magnetic shielding sheet 52 can cover as much of the first portion 511 of the NFC coil 51 as possible, thereby increasing the magnetic field strength on the side of the NFC coil 51 facing the display screen 4.

[0153] The distance between the outer edge of the first coil segment 512A of the NFC coil 51 and the outer edge of the magnetic isolation plate 52 (e.g. Figure 15 The spacing L4 shown in FIG4 is greater than or equal to 0.2 mm. For example, the spacing between the outer edge of the first coil segment 512A and the outer edge of the magnetic shielding sheet 52 can be 0.2 mm, 0.25 mm, 0.3 mm, 0.35 mm, 0.4 mm, 0.45 mm, 0.5 mm, etc. In this way, the magnetic shielding sheet 52 can cover as much of the first coil segment 512A of the NFC coil 51 as possible, thereby increasing the magnetic field strength on the side of the NFC coil 51 facing the display screen 4.

[0154] In some embodiments, see Figure 18 , Figure 18 This is a schematic diagram of the circuit structure of an NFC antenna 5 provided in some embodiments of the present application. The NFC antenna 5 also includes an NFC chip 53, an NFC filter module 54, and an NFC matching module 55. The input of the NFC filter module 54 is electrically connected to the output of the NFC chip 53; the input of the NFC matching module 55 is electrically connected to the output of the NFC filter module 54, and the output of the NFC matching module 55 is electrically connected to the NFC coil 51.

[0155] After the NFC coil 51 receives the radio frequency signal from other devices (such as POS machines, etc.), it will transmit the radio frequency signal to the NFC chip 53 through the NFC matching module 55 and the NFC filter module 54 in sequence. The NFC chip 53 processes the radio frequency signal and transmits the processed radio frequency signal to the NFC coil 51 through the NFC filter module 54 and the NFC matching module 55 in sequence, so that the NFC coil 51 can exchange information with other devices. Among them, the NFC filter module 54 is used to remove high-frequency and low-frequency signals in the radio frequency signal to reduce interference with the radio frequency signal. The NFC matching module 55 is used to perform conjugate matching on the radio frequency signal to ensure that the radio frequency signal can be effectively transmitted between the NFC chip 53 and the NFC coil 51.

[0156] In some examples, the NFC filter module 54 may be an LC filter circuit, wherein the NFC module may be a filter circuit composed of a set of inductors and capacitors, or a filter circuit composed of multiple sets of inductors and capacitors.

[0157] In some examples, the NFC matching module 55 can be an RC circuit, that is, a circuit composed of a resistor and a capacitor. The NFC matching module 55 can also be a circuit composed of a resistor, a capacitor, and a diode. Figure 18 The NFC matching module 55 shown is a circuit composed of a resistor, a capacitor, and a diode, and the diode D1 is located at the H1 position of the NFC matching module 55. In other examples, the diode can also be connected to Figure 18 The H2 position in .

[0158] It should be noted that the signal output by the NFC chip 53 can be a differential signal. That is, the NFC chip 53 outputs signals through two connecting lines (i.e., two output signals), and the output signals of the two connecting lines have equal amplitudes and a phase difference of 180 degrees. Figure 18 The amplitudes of the P1 and P2 positions are equal, and the phase difference is 180 degrees. At this time, each output signal has an H1 position and an H2 position, and each has a diode D1.

[0159] The NFC chip 53 and the NFC filter module 54 can be provided on the mainboard 2. At least a portion of the NFC matching module 55 is provided on the screen circuit board 7. In this case, at least a portion of the NFC matching module 55 and the NFC coil 51 are both provided on the screen circuit board 7. After the NFC matching module and the NFC coil 51 are connected, the NFC matching module and the NFC coil 51 can be connected using a shorter connecting cable, thereby reducing interference with the signal during transmission between the NFC matching module 55 and the NFC coil 51, thereby improving the stability of signal transmission.

[0160] In some examples, the NFC matching module 55 is entirely disposed on the screen circuit board 7 . At this point, one end of the NFC matching module 55 is electrically connected to the NFC coil 51 , and the other end of the NFC matching module 55 is connected to the NFC filter module 54 via the connector 50 .

[0161] In some examples, two parallel capacitors in the NFC matching module 55 (i.e., one capacitor for each of the two output signals) are arranged on the screen circuit board 7, and the remaining capacitors, resistors, and diodes are all arranged on the main board 2.

[0162] In some embodiments, see Figure 19 , Figure 19This diagram illustrates the relationship between the first circuit board 7A, second circuit board 7B, and NFC coil 51 provided in some embodiments of the present application. Display screen 4 includes a touch module 41 and a display panel 42. Touch module 41 is located on the side of display panel 42 facing away from screen circuit board 7. Screen circuit board 7 includes a first circuit board 7A and a second circuit board 7B. First circuit board 7A is electrically connected to touch module 41 for transmitting signals to touch module 41. Second circuit board 7B is electrically connected to display panel 42 for transmitting signals to display panel 42.

[0163] The first circuit board 7A and the second circuit board 7B are electrically connected. The first circuit board 7A and the second circuit board 7B can be soldered. The first circuit board 7A and the second circuit board 7B can also be connected via a first connector 7C. The second circuit board 7B is connected to the mainboard 2 via a connector 50. In this case, one of the first circuit board 7A and the second circuit board 7B includes an NFC coil 51. By providing the NFC coil 51 on one of the first circuit board 7A and the second circuit board 7B, it is also possible to eliminate the substrate when the NFC coil 51 is provided separately, thereby reducing the overall thickness of the NFC coil 51 and the screen circuit board 7, thereby reducing the thickness of the electronic device 100.

[0164] For some examples, see Figure 19 , the NFC coil 51 is provided on the first circuit board 7A. That is, the NFC coil 51 is a metal layer on the first circuit board 7A. In other examples, see Figure 20 , Figure 20 This is another schematic diagram of the relationship between the first circuit board 7A, the second circuit board 7B, and the NFC coil 51 provided in some embodiments of the present application. The NFC coil 51 is provided on the second circuit board 7B. That is, the NFC coil 51 is a metal layer on the second circuit board 7B.

[0165] In some embodiments, see Figure 21 , Figure 21 This figure illustrates another embodiment of the relationship between the NFC coil 51 and the display screen 4. The display screen 4 also includes a metal shielding layer 43. The metal shielding layer 43 can be located on the side of the touch module 41 facing away from the display panel 42 to shield interference signals and ensure that the display screen 4 can display graphics, videos, and other content normally. The metal shielding layer 43 can be made of copper, aluminum, or other materials.

[0166] An avoidance through-hole 431 is provided on the metal shielding layer 43, and at least part of the orthographic projection of the avoidance through-hole 431 on the plane where the screen circuit board 7 is located overlaps with at least part of the area enclosed by the orthographic projection of the NFC coil 51 on the plane where the screen circuit board 7 is located. That is to say, part of the orthographic projection of the avoidance through-hole 431 on the plane where the screen circuit board 7 is located overlaps with part of the area enclosed by the orthographic projection of the NFC coil 51 on the plane where the screen circuit board 7 is located. Alternatively, the orthographic projection of the avoidance through-hole 431 on the plane where the screen circuit board 7 is located is located within the area enclosed by the orthographic projection of the NFC coil 51 on the plane where the screen circuit board 7 is located. Alternatively, the area enclosed by the orthographic projection of the NFC coil 51 on the plane where the screen circuit board 7 is located is located within the orthographic projection of the avoidance through-hole 431 on the plane where the screen circuit board 7 is located. It can be understood that Figure 21 The relationship between the avoidance through hole 431 of the metal shielding layer 43 on the display screen 4 and the NFC coil 51 is only schematically shown, wherein the actual shape, actual size, actual position and actual structure of the screen circuit board 7, NFC coil 51, metal shielding layer 43 and display screen 4 are not affected. Figure 21 restrictions.

[0167] By avoiding at least a portion of the orthographic projection of the through hole 431 on the plane of the screen circuit board 7 from overlapping at least a portion of the area enclosed by the orthographic projection of the NFC coil 51 on the plane of the screen circuit board 7, the metal shielding layer 43 can be prevented from shielding the magnetic field of the NFC coil 51, thereby ensuring that the NFC coil 51 can normally receive the radio frequency signal toward the side of the display screen 4.

[0168] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0169] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An electronic device, characterized in that: include: a display screen, the display screen including a non-display portion; An NFC antenna is provided on a non-display side of the display screen, wherein at least a portion of an orthographic projection of the NFC antenna on a plane where the display screen is located is located in the non-display portion.

2. The electronic device according to claim 1, wherein The NFC antenna includes an NFC coil, and at least a portion of an orthographic projection of the NFC coil on a plane where the display screen is located is located in the non-display portion.

3. The electronic device according to claim 2, wherein: The NFC antenna further includes a magnetic isolation sheet, which is disposed on a side of the NFC coil facing away from the display screen and covers at least a portion of the NFC coil.

4. The electronic device according to claim 3, wherein: At least a portion of the orthographic projection of the magnetic isolation plate on the plane where the display screen is located is located in the non-display portion.

5. The electronic device according to claim 3, wherein: Also includes: A screen circuit board is provided on the non-display side of the display screen; the screen circuit board includes a first conductive portion and a second conductive portion, the first conductive portion is electrically connected to the display screen, and the second conductive portion forms the NFC coil.

6. The electronic device according to claim 5, characterized in that The screen circuit board includes a first metal layer and a second metal layer stacked together, the first conductive portion is provided on the first metal layer, and the second conductive portion is provided on the second metal layer.

7. The electronic device according to claim 6, wherein: The electronic device further comprises: A driving module is connected to the screen circuit board and is electrically connected to the display screen through the first conductive portion, wherein the orthographic projection of the driving module on the plane where the display screen is located does not overlap with the orthographic projection of the NFC coil on the plane where the display screen is located.

8. The electronic device according to claim 7, wherein: The screen circuit board has a device area and a non-device area, and the driving module and the first conductive part are arranged in the device area; The NFC coil includes a first portion and a second portion sequentially arranged along its circumference. The first portion is disposed along an edge of the non-device area facing away from the device area, and the second portion is disposed in the device area.

9. The electronic device according to claim 8, wherein: The area of the non-device region is larger than that of the device region.

10. The electronic device according to claim 8, wherein It also includes a display IC module and a connector, which are located on the side of the device area facing away from the non-device area. The connector is electrically connected to the input end of the driving module, and the display IC module is electrically connected to the output end of the driving module and is electrically connected to the display screen through the first conductive part.

11. The electronic device according to claim 10, characterized in that The device area includes a first device area, a second device area, and a third device area, wherein the first device area is located at an end of the screen circuit board facing the display IC module, the third device area is located at an end of the screen circuit board facing the connector, and the second device area is located between the first device area, the third device area, and the non-device area; The driving module is disposed in the third device region, and at least a portion of the first conductive portion is located in the first device region and the second device region.

12. The electronic device according to claim 11, wherein: The second part includes a first coil segment and a second coil segment. The first part, the first coil segment and the second coil segment are sequentially connected end to end. The first coil segment is arranged in the first device area, and the second coil segment is arranged in the third device area.

13. The electronic device according to claim 12, wherein: The second coil segment is located on a side of the driving module facing away from the non-device area.

14. The electronic device according to claim 11, wherein: An angle between a length direction of the driving module and a length direction of the display IC module is greater than or equal to 0° and less than or equal to 90°.

15. The electronic device according to claim 8, wherein The first part includes a first section, the first section includes a multi-turn coil section, the multi-turn coil section constitutes a first group of coil sections and a second group of coil sections, the first group of coil sections is connected to the second part; The NFC coil further includes a third portion, two ends of the third portion are respectively connected to two ends of the second group of coil segments, and the third portion is located in the non-device area.

16. The electronic device according to claim 12, wherein: The first conductive part includes a first connecting line, and the display IC module and the driving module are connected via the first connecting line; The orthographic projection of the first connecting line on the plane where the screen circuit board is located intersects with the orthographic projection of the first coil segment on the plane where the screen circuit board is located.

17. The electronic device according to claim 16, wherein: A first shielding component is also provided on the screen circuit board, and the first shielding component is provided between the first connecting line and the first coil segment.

18. The electronic device according to claim 17, wherein: The first shielding member includes a first shielding layer, and the first shielding layer is arranged between the first metal layer and the second metal layer.

19. The electronic device according to claim 12, wherein: The first conductive portion further includes a second connecting line; The connector is connected to the driving module via the second connecting line; The orthographic projection of the second connecting line on the plane where the screen circuit board is located intersects with the orthographic projection of the second coil segment on the plane where the screen circuit board is located.

20. The electronic device according to any one of claims 12 to 13, characterized in that: The orthographic projection of the magnetic isolation sheet on the plane where the screen circuit board is located covers the first device area, the second device area and the non-device area.

21. The electronic device according to claim 20, characterized in that The orthographic projection of the magnetic isolation sheet on the plane where the screen circuit board is located is located inside the screen circuit board.

22. The electronic device according to claim 21, wherein: The distance between the outer edge of the magnetic isolation plate and the outer edge of the screen circuit board is greater than or equal to 0.2 mm.

23. The electronic device according to claim 20, wherein: The distance between the outer edge of the first portion and the outer edge of the magnetic isolation plate is greater than or equal to 0.2 mm; and the distance between the outer edge of the first coil segment and the outer edge of the magnetic isolation plate is greater than or equal to 0.2 mm.

24. The electronic device according to claim 20, wherein: A two-dimensional code is also formed on the magnetic isolation sheet, and the two-dimensional code is used to identify product information of the magnetic isolation sheet.

25. The electronic device according to any one of claims 5 to 19, characterized in that: The NFC antenna further includes: NFC chip; An NFC filter module, wherein an input end of the NFC filter module is electrically connected to an output end of the NFC chip; An NFC matching module, wherein an input end of the NFC matching module is electrically connected to an output end of the NFC filter module, and an output end of the NFC matching module is electrically connected to the NFC coil; at least a portion of the NFC matching module is disposed on the screen circuit board.

26. The electronic device according to any one of claims 5 to 19, characterized in that: The display screen includes a touch module and a display panel, wherein the touch module is arranged on a side of the display panel facing away from the screen circuit board; The screen circuit board includes a first circuit board and a second circuit board, the first circuit board is electrically connected to the touch module, the second circuit board is electrically connected to the display panel, and the first circuit board and the second circuit board are electrically connected; One of the first circuit board and the second circuit board includes the NFC coil.

27. The electronic device according to any one of claims 5 to 19, characterized in that: The display screen also includes a metal shielding layer, on which an avoidance through-hole is provided. The avoidance through-hole overlaps at least partially with an area enclosed by an orthographic projection of the plane where the screen circuit board is located and an orthographic projection of the NFC coil on the plane where the screen circuit board is located.

28. The electronic device according to any one of claims 7 to 19, characterized in that: It also includes an ambient light module, which is connected to the screen circuit board and electrically connected to the driving module. The orthographic projection of the ambient light module on the plane where the screen circuit board is located does not overlap with the orthographic projection of the NFC coil on the plane where the screen circuit board is located.

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