Electronic devices

Abstract

The present application discloses an electronic device, which belongs to the field of communication equipment. The electronic device includes a display module, a fingerprint recognition module and a first circuit board, the display module includes a display screen, a second circuit board and a first connecting part, the display screen is electrically connected to the second circuit board, and the second circuit board is electrically connected to the first circuit board through the first connecting part; the fingerprint recognition module includes a fingerprint sensor, a fingerprint drive unit and a second connecting part, the fingerprint sensor is arranged on the side of the display screen away from the display surface, the fingerprint sensor and the fingerprint drive unit are spaced apart, and the fingerprint sensor and the fingerprint drive unit are electrically connected to the first circuit board through the second connecting part. The electronic device disclosed in the above technical solution can solve the problem that the fingerprint drive unit in the current electronic device will occupy a large area on the circuit board of the display screen, and because the fingerprint signal and the display signal are transmitted together, the design constraints of the first circuit board are more and the design difficulty is greater.

Description

Technical Field

[0001] The present application relates to the technical field of communication equipment, and in particular to an electronic device. Background Art

[0002] With the advancement of technology and influenced by users' preference for large display areas, many electronic devices usually remove physical buttons on the front and set fingerprint recognition functions on the back of the electronic devices. However, setting the fingerprint recognition function on the back of the electronic device is not convenient for users, while the under-screen fingerprint recognition module can take into account both large display area and user experience. Therefore, more and more manufacturers are beginning to adopt this method.

[0003] The under-screen fingerprint recognition module usually includes a fingerprint sensor and a fingerprint drive unit that are interconnected. The fingerprint drive is equipped with components such as a main control chip. At present, in order to simplify the system structure and circuit design, the fingerprint drive unit is usually attached to the circuit board of the display screen, and the fingerprint drive unit is connected to the circuit board of the display screen through a connector. The circuit board of the display screen can be connected to the first circuit board such as the main board or sub-board of the electronic device through a connector such as a flexible circuit board to transmit the fingerprint signal and the display signal together. However, in the actual application of this design scheme, the fingerprint drive unit will occupy a larger area on the circuit board of the display screen, and because the fingerprint signal and the display signal are communicated to the outside through the same flexible circuit board and connector, the design constraints of the first circuit board are more and the design difficulty is greater. Summary of the invention

[0004] The present application discloses an electronic device to solve the problems in current electronic devices that a fingerprint drive unit occupies a large area on a circuit board of a display screen, and that the fingerprint signal and the display signal are transmitted together, resulting in more design constraints and greater design difficulty for the first circuit board.

[0005] In order to solve the above problems, the embodiments of the present application are implemented as follows:

[0006] An embodiment of the present application provides an electronic device, including a display module, a fingerprint recognition module and a first circuit board, wherein the display module includes a display screen, a second circuit board and a first connecting portion, the display screen is electrically connected to the second circuit board, and the second circuit board is electrically connected to the first circuit board through the first connecting portion;

[0007] The fingerprint recognition module includes a fingerprint sensor, a fingerprint drive unit and a second connecting part. The fingerprint sensor is arranged on a side of the display screen away from the display surface. The fingerprint sensor and the fingerprint drive unit are spaced apart, and the fingerprint sensor and the fingerprint drive unit are electrically connected to the first circuit board through the second connecting part.

[0008] In the electronic device disclosed in the present application, the display module includes a display screen, a second circuit board and a first connection part, and the display screen is electrically connected to the second circuit board; the fingerprint recognition module includes a fingerprint sensor, a fingerprint drive unit and a second connection part, and the fingerprint sensor is arranged on the side of the display screen away from the display surface, so that the electronic device has an under-screen fingerprint recognition function, improves the user experience of the electronic device, and also enables the electronic device to have a larger display area. The fingerprint sensor and the fingerprint drive unit are electrically connected to the first circuit board of the electronic device through the second connection part, thereby preventing the fingerprint drive unit from occupying the area on the second circuit board in the display module, thereby reducing the overall size of the second circuit board, and the second circuit board in the display module is electrically connected to the first circuit board through the first connection part, so that the fingerprint signal and the display signal in the electronic device are separated from each other and are electrically connected to the first circuit board respectively, and then in the design process of the electronic device, because the fingerprint signal and the display signal are separately connected to the first circuit board, the constraints required for the first circuit board in the design process are relatively few, and the design difficulty is relatively low; in addition, when the above technical solution is adopted, there is basically no stacking between the fingerprint recognition module and the display module, and the two are independent of each other, so that the overall thickness of the display module and the fingerprint recognition module can be smaller, which is conducive to the development of electronic devices towards lightness and thinness. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0010] Figure 1 A schematic diagram of the structure of an electronic device disclosed in an embodiment of the present application;

[0011] Figure 2 Another structural schematic diagram of an electronic device disclosed in an embodiment of the present application;

[0012] Figure 3 for Figure 2 A schematic structural diagram of a middle frame of an electronic device shown;

[0013] Figure 4 A schematic diagram of another structure of the electronic device disclosed in the embodiment of the present application;

[0014] Figure 5 for Figure 4 A schematic structural diagram of a middle frame of an electronic device shown;

[0015] Figure 6 It is another structural schematic diagram of the electronic device disclosed in the embodiment of the present application;

[0016] Figure 7 for Figure 6 A schematic structural diagram of a middle frame of an electronic device shown;

[0017] Figure 8 It is another structural schematic diagram of the electronic device disclosed in the embodiment of the present application;

[0018] Fig. 9 for Figure 8 A schematic structural diagram of a middle frame of an electronic device shown;

[0019] Fig.10 A schematic diagram of the electronic device disclosed in an embodiment of the present application in another direction;

[0020] Fig.11 It is an assembly diagram of a part of the structure of the electronic device disclosed in the embodiment of the present application.

[0021] Description of reference numerals:

[0022] 110 - display screen, 120 - second circuit board, 130 - first connecting portion, 140 - first connector,

[0023] 210 - fingerprint sensor, 220 - fingerprint drive unit, 230 - second connection portion, 231 - first connection section, 232 - second connection section, 233 - third connection section, 240 - second connector,

[0024] 310 - middle frame, 311 - first opening, 312 - second opening, 313 - third opening, 320 - adhesive layer. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in combination with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0026] The technical solutions disclosed in various embodiments of the present application are described in detail below in conjunction with the accompanying drawings.

[0027] like Figure 1-Figure 11 As shown, an embodiment of the present application discloses an electronic device, which includes a display module, a fingerprint recognition module and a first circuit board, wherein the first circuit board can be a main board of the electronic device. Of course, when a sub-board is provided in the electronic device, the first circuit board can also be a sub-board of the electronic device.

[0028] The display module includes a display screen 110, a second circuit board 120 and a first connection portion 130. The display screen 110 is electrically connected to the second circuit board 120. The display screen 110 can be connected to the second circuit board by metal wire or welding. The structural parameters such as the size and shape of the display screen 110 can be flexible according to actual needs. More specifically, the display screen 110 can be a touch display screen. The second circuit board 120 can be provided with a display drive circuit. Of course, other components can also be provided on the second circuit board 120.

[0029] The first connection part 130 can be a metal wire or a flexible circuit board. When the first connection part 130 is a flexible circuit board, the second circuit board 120 is electrically connected to the first circuit board through the first connection part 130. The second circuit board 120 and the first connection part 130, as well as the first connection part 130 and the first circuit board can form a fixed connection relationship by soldering or conductive adhesive bonding, and an electrical connection relationship is formed at the same time, ensuring that information exchange can be carried out between the display module and the first circuit board through the first connection part 130. Alternatively, connectors can be provided at both opposite ends of the first connection part 130. For example, the end of the first connection part 130 facing away from the second circuit board 120 can be provided with a first connector 140, so that the first connection part 130 can be electrically connected to the first circuit board with the help of the first connector 140.

[0030] The fingerprint recognition module includes a fingerprint sensor 210, a fingerprint drive unit 220 and a second connection part 230. The fingerprint sensor 210 is disposed on the side of the display screen 110 away from the display surface. Specifically, the fingerprint sensor 210 can be fixed to one side of the display screen 110 by clamping, bonding or limiting clamping. In order to improve the connection reliability between the fingerprint sensor 210 and the display screen 110, as shown in FIG. Fig.11 As shown, the fingerprint sensor 210 and the display screen 110 can be bonded and fixed together with the help of the adhesive layer 320. In this case, the fingerprint sensor 210 can also be made to fit as closely as possible to the surface of the display screen 110, thereby reducing the distance between the fingerprint sensor 210 and the display screen 110, improving the lightness and thinness of the electronic device, and basically eliminating the air gap between the fingerprint processor 210 and the display screen 110 to prevent dust from falling between the two, thereby improving the fingerprint recognition speed and accuracy, and thus improving the user experience.

[0031] The fingerprint sensor 210 and the fingerprint drive unit 220 are spaced apart, and the size of the space between them can be determined according to the space in the electronic device, as well as actual parameters such as the structure and size of the fingerprint sensor 210 and the fingerprint drive unit 220, which are not limited here. The fingerprint drive unit 220 can specifically include functional modules such as a power management module, a logic control module, a data processing module, and a data transmission module. The above modules can be composed of circuit units composed of components such as integrated circuits, inductors, capacitors, and resistors. Of course, under different working principles and other conditions, the fingerprint drive unit 220 can also include other modules or other components.

[0032] The second connection part 230 may also be a metal wire or a flexible circuit board. In another embodiment of the present application, the second connection part 230 is a flexible circuit board. In this case, the second connection part 230 may be used as a carrier of multiple components in the fingerprint drive unit 220. Components such as integrated circuits, inductors, capacitors and resistors may be fixed on the second connection part 230 by welding or conductive adhesive bonding, and the above components are all electrically connected to the second connection part 230. Considering that there are a large number of components in the fingerprint drive unit 220, and in order to ensure that the components do not interfere with each other, the second connection part 230 may optionally include a connecting sub-part and a mounting sub-part, and the width of the mounting sub-part is greater than the width of the connecting sub-part. The fingerprint drive unit 220 is arranged on the mounting sub-part. Since the area of ​​the mounting sub-part per unit length is greater than the area of ​​the connecting sub-part per unit length, the mounting sub-part has a larger mounting area, thereby ensuring that the components in the fingerprint drive unit 220 mounted on the mounting sub-part have a safe distance that meets the requirements, and the distribution of different components in the fingerprint drive unit 220 is still relatively concentrated, thereby improving the cooperation efficiency between components.

[0033] At the same time, the fingerprint sensor 210 is also electrically connected to the second connection part 230, so that the purpose of electrically connecting the fingerprint sensor 210 and the first circuit board is achieved through the second connection part 230. Optionally, both opposite ends of the second connection part 230 can be respectively connected to the fingerprint sensor 210 and the first circuit board by welding. In another embodiment of the present application, the second connector 240 is installed at one end of the second connection part 230 away from the fingerprint sensor 210, and the second connector 240 is electrically connected to the first circuit board.

[0034] In the electronic device disclosed in the present application, the display module includes a display screen 110, a second circuit board 120 and a first connecting part 130, and the display screen 110 is electrically connected to the second circuit board 120; the fingerprint recognition module includes a fingerprint sensor 210, a fingerprint drive unit 220 and a second connecting part 230, and the fingerprint sensor 210 is arranged on the side of the display screen 110 away from the display surface, so that the electronic device has an under-screen fingerprint recognition function, which improves the user experience of the electronic device and also allows the electronic device to have a larger display area. The fingerprint sensor 210 and the fingerprint drive unit 220 are electrically connected to the first circuit board of the electronic device through the second connecting portion 230, thereby preventing the fingerprint drive unit 220 from occupying the area on the second circuit board 120 in the display module, thereby reducing the overall size of the second circuit board 120, and the second circuit board 120 in the display module is electrically connected to the first circuit board through the first connecting portion 130, so that the fingerprint signal and the display signal in the electronic device are separated from each other and are electrically connected to the first circuit board respectively. Therefore, in the design process of the electronic device, since the fingerprint signal and the display signal are separately connected to the first circuit board, the constraints required for the design of the first circuit board are relatively few, and the design difficulty is relatively low; in addition, when the above technical solution is adopted, there is basically no stacking between the fingerprint recognition module and the display module, and the two are independent of each other, so that the overall thickness of the display module and the fingerprint recognition module can be smaller, which is conducive to the development of electronic devices towards thinness.

[0035] Furthermore, the electronic device also includes a middle frame 310, which can provide certain support and protection for components such as the display screen 110 and the first circuit board in the electronic device. The middle frame 310 can be made of hard materials such as metal or plastic, and the shape and specific size of the middle frame 310 can be determined according to the actual structure of the shell of the electronic device. The display screen 110 is usually arranged on one side of the middle frame 310, and the first circuit board is usually arranged on the side of the middle frame 310 away from the display screen 110. Therefore, it is necessary to extend the first connecting portion 130 and the second connecting portion 230 from the edge of the middle frame 310 to be electrically connected to the first circuit board located on the other side of the middle frame 310.

[0036] Based on the above, optionally, the middle frame 310 is provided with an opening, and the first connection portion 130 and the second connection portion 230 located on one side of the middle frame 310 can both extend through the opening on the middle frame 310 and be electrically connected to the first circuit board located on the other side of the middle frame 310. The first connection portion 130 is a strip-shaped structural member, and the opening can be arranged toward the first connection portion 130 to shorten the distance between the opening and the second circuit board 120, thereby shortening the length of the first connection portion 130. At the same time, the end of the second connection part 230 facing away from the fingerprint sensor 210 can also be arranged in parallel with the first connection part 130, so that when the end of the first connection part 130 and the end of the second connection part 230 are inserted into the opening of the middle frame 310, since at least part of both are strip-shaped structural members, in the process of inserting the first connection part 130 and the second connection part 230 through the opening, it is only necessary to align the ends of the first connection part 130 and the second connection part 230 with the opening, and there is basically no need to make the first connection part 130 and the second connection part 230 produce a large degree of bending deformation, thereby ensuring that the first connection part 130 and the second connection part 230 both have a long service life, and can also reduce the difficulty of assembly between the first connection part 130 and the second connection part 230 and the opening of the middle frame 310 to a certain extent.

[0037] More specifically, only the portion of the second connection portion 230 extending through the opening to the other side of the middle frame 310 may be arranged in parallel with the first connection portion 130, or the second connection portion 230 may be a strip-shaped structural member as a whole and arranged in parallel with the first connection portion 130. The opening may be formed by drilling or the like, or, in the process of forming the middle frame 310, the structure of the mold may be changed to directly form the middle frame 310 having the opening. In addition, the size, number and arrangement position of the opening may be determined according to actual conditions.

[0038] In the case where the middle frame 310 is provided in the electronic device, optionally, as Figure 2-Figure 5 As shown, a first opening 311 and a second opening 312 which are spaced apart from each other are provided on the middle frame 310. During the process of assembling the electronic device, the first connection portion 130 can pass through the first opening 311 to be electrically connected to the first circuit board, and the second connection portion 230 can pass through the second opening 312 to be electrically connected to the first circuit board. In this case, the first connection portion 130 and the second connection portion 230 can both be easily extended from one side of the middle frame 310 to the other side of the middle frame 310, and both are electrically connected to the first circuit board.

[0039] Specifically, the width and height of the first opening 311 can be determined according to the width and thickness of the first connection portion 130, and the size of the first opening 311 can be made not to exceed the size of the first connection portion 130 in the corresponding direction, so as to ensure that the middle frame 310 has a high structural strength when the first connection portion 130 can pass through the first opening 311. Correspondingly, the size of the second opening 312 can also be determined according to the size of the second connection portion 230 in the corresponding direction. It should be noted that if components or other parts are provided on the first connection portion 130 and / or the second connection portion 230, and need to pass through the first opening 311 and / or the second opening 312, the size of the first opening 311 and / or the second opening 312 can be enlarged accordingly, and those skilled in the art can flexibly change this according to actual conditions.

[0040] Furthermore, when the first opening 311 and the second opening 312 are spaced apart from each other, the connection structure therebetween can reinforce the local strength of the area where the first opening 311 and the second opening 312 are located on the middle frame to a certain extent, thereby ensuring that the structural strength at any position on the middle frame 310 is relatively large.

[0041] More specifically, if Figure 2 and Figure 3 As shown, the first opening 311 and the second opening 312 can be respectively arranged on opposite sides of the middle frame 310. In this case, the first connection portion 130 and the second connection portion 230 extend in opposite directions, the first connection portion 130 extends to one side of the display screen 110, and the second connection portion 230 extends to the other side of the display screen 110. In the case of adopting this technical solution, the distance between the first opening 311 and the second opening 312 can be relatively large, and since the two are respectively located on different sides of the middle frame 310, the influence of the first opening 311 and the second opening 312 on the local structural strength of the middle frame 310 can be relatively small, so as to further ensure that the uniformity of the overall structural strength of the middle frame 310 is better.

[0042] In addition, a filling structure may be provided in the gap between the first opening 311 and the first connection portion 130 , and / or a filling structure may be provided in the gap between the second opening 312 and the second connection portion 230 , so as to further enhance the structural strength of the middle frame 310 .

[0043] In another embodiment of the present application, Figure 4 and Figure 5As shown, the first opening 311 and the second opening 312 are located on the same side of the middle frame 310. In this case, the first connection portion 130 and the second connection portion 230 extend in the same direction, both extend to the same side of the display screen 110, and pass through the first opening 311 and the second opening 312 respectively to be electrically connected to the first circuit board. It should be noted that the first opening 311 and the second opening 312 are not necessarily arranged at the side edge of the middle frame 310, and can also be arranged at other positions near the edge of the middle frame 310.

[0044] When the above technical solution is adopted, since the first connection part 130 and the second connection part 230 extend in the same direction, when aligning one group of the first connection part 130 and the first opening 311 and aligning the second connection part 230 and the second opening 312, the other group is also basically in an aligned state; at the same time, when the first connection part 130 and the second connection part 230 extend in the same direction, the first connection part 130 and the second connection part 230 only occupy the space on one side of the second circuit board 120, so that the overall size of the intermediate structure composed of the second circuit board 120, the fingerprint sensor 210, the first connection part 130 and the second connection part 230 is also relatively small, which is convenient for storage and transportation.

[0045] In another embodiment of the present application, a third opening 313 may also be provided on the middle frame 310, and the first connection portion 130 and the second connection portion 230 are both electrically connected to the first circuit board through the third opening 313. That is, the first connection portion 130 and the second connection portion 230 pass through the same opening to the other side of the middle frame 310. In this case, the difficulty of assembling the electronic device can be further reduced, and during the processing, the difficulty and precision requirements of opening one opening are generally less than the difficulty and precision requirements of opening two openings.

[0046] Furthermore, in a direction perpendicular to the extension direction of the display screen 110 and the first connection portion 130, the first connection portion 130 and the second connection portion 230 may be spaced apart from each other, wherein the third opening 313 may be disposed on a side of the middle frame 310 located in the width direction of the display screen 110, or may be disposed on a side of the middle frame 310 located in the length direction of the display screen 110.

[0047] In more detail, Figure 6 and Figure 7As shown, when the third opening 313 is located on the side where the length direction of the display screen 110 is located, the extension direction of the first connection portion 130 is the width direction of the display screen 110, and the direction perpendicular to the extension direction of the display screen 110 and the first connection portion 130 is the width direction of the display screen 110, that is, the first connection portion 130 and the second connection portion 230 can be spaced apart along the length direction of the display screen 110, or in other words, the projections of the first connection portion 130 and the second connection portion 230 in the direction perpendicular to the display screen 110 do not overlap. Among them, the thickness direction of the display screen 110 can be Figure 7 In the direction perpendicular to the paper surface, the extension direction of the first connecting portion 130, that is, the width direction of the display screen 110 can be Figure 7 In the direction X, the length direction of the display screen 110 can be Figure 7 in the direction Y.

[0048] In this case, the size of the third opening 313 in the length direction of the display screen 110 is relatively large, which can reduce the difficulty of installing the first connection part 130 and the second connection part 230 to a certain extent, and there is no need to make special adjustments to the positions of the first connection part 130 and the second connection part 230. It is only necessary to determine the size of the third opening 313 according to the spacing between the first connection part 130 and the second connection part 230 in the length direction of the display screen 110, and then lead the first connection part 130 and the second connection part 230 out from the same side of the fingerprint sensor 210 and the second circuit board 120, which can reduce the overall processing difficulty of the electronic device to a certain extent.

[0049] As described above, the third opening 313 can be opened on the side where the length direction of the display screen 110 is located, and the first connection portion 130 extends along the width direction of the display screen 110. When both the first connection portion 130 and the second connection portion 230 pass through the third opening 313, optionally, as Figure 8 and Fig. 9 As shown, at least a portion of the end of the second connection portion 230 that is away from the fingerprint sensor 210 is stacked with the first connection portion 130 along the thickness direction of the display screen 110, which can make the size of the third opening 313 in the length direction of the display screen 110 relatively small, that is, when the above technical solution is adopted, the overall size of the third opening 313 is relatively small, thereby minimizing the degree of reduction in structural strength of the middle frame 310 due to the provision of the third opening 313.

[0050] Of course, when the above technical solution is adopted, the size of the third opening 313 needs to be further increased in the thickness direction of the display screen 110 to ensure that the stacked first connection portion 130 and the second connection portion 230 can pass through the third opening 313. During the use of the electronic device, because the force applied to the middle frame 310 in the thickness direction of the display screen 110 is relatively small, even if the size of the third opening 313 in the thickness direction of the display screen 110 becomes larger, the impact on the structural strength of the middle frame 310 is relatively small. In addition, since the thickness of the first connection portion 130 and the second connection portion 230 is usually small, even if at least a part of the two is arranged in the above stacked manner, it will basically not affect the overall thickness of the display module and the fingerprint recognition module. In addition, as described above, the ends of the first connection portion 130 and the second connection portion 230 may be provided with connectors. Generally speaking, in the thickness direction of the display screen 110, the size of the connector is larger than the size of the first connection portion 130 and the second connection portion 230. Therefore, in actual use, the size of the third opening 313 in the thickness direction of the display screen 110 may be designed according to the size of the connector to ensure that the connector can pass from one side of the third opening 313 to the other side of the third opening 313. It should be noted that the opposite sides of the third opening 313 may be considered as the inner side and the outer side of the middle frame 310, or as the front side and the back side of the middle frame 310.

[0051] More specifically, a first connector 140 is provided at one end of the first connecting portion 130 facing away from the second circuit board 120, and the second circuit board 120 is electrically connected to the first circuit board through the first connector 140; correspondingly, a second connector 240 is provided at one end of the second connecting portion 230 facing away from the fingerprint sensor 210, and the fingerprint sensor 210 is electrically connected to the first circuit board through the second connector 240, so as to further reduce the difficulty of assembly and maintenance of components in the electronic device.

[0052] Based on the above embodiment, further, Figure 8 As shown, the first connector 140 and the second connector 240 can be distributed along the extension direction of the first connecting portion 130. In this case, the first connector 140 and the second connector 240 can be staggered, and then in the process of assembling the electronic device, one of the first connector 140 and the second connector 240 can be passed through the third opening 313 first, and then the other can be passed through the third opening 313. Therefore, in the process of designing the third opening 313, the size of the third opening 313 in the thickness direction of the display screen 110 can be made smaller than the sum of the sizes of the first connector 140 and the second connector 240, which can further reduce the size of the third opening 313 in the thickness direction of the display screen 110, thereby improving the overall structural strength of the middle frame 310.

[0053] As described above, when the first connector 140 and the second connector 240 are staggered with each other, the lengths of the first connection part 130 and the second connection part 230 extending from the middle frame 310 can also be different. In order to further facilitate the first connection part 130 and the second connection part 230 to pass through the third opening 313 at the same time, a double-sided tape with low viscosity can be set between the first connection part 130 and the second connection part 230, so that the first connection part 130 and the second connection part 230 are temporarily formed into a whole. After the aforementioned whole is passed through the third opening 313, the double-sided tape can be peeled off to separate the first connection part 130 and the second connection part 230 so as to be electrically connected to different positions of the first circuit board respectively.

[0054] As mentioned above, the second circuit board 120 and the fingerprint sensor 210 are both arranged on the side of the display screen 110 away from the display surface. Optionally, the second circuit board 120 and the fingerprint sensor 210 can be respectively arranged in different areas of the surface of the display screen 110. In this case, the thickness of the whole composed of the display screen 110, the second circuit board 120 and the fingerprint sensor 210 can be reduced.

[0055] Further, when both the first connection portion 130 and the second connection portion 230 pass through the third opening 313, the first connection portion 130 can be a strip-shaped structure, and the second connection portion 230 can be a bent structure, such as Figure 8 As shown, the second connection portion 230 includes a first connection segment 231, a second connection segment 232 and a third connection segment 233. The first connection segment 231 is connected to the fingerprint sensor 210, and both the first connection segment 231 and the third connection segment 233 extend along the extension direction of the first connection portion 130, that is, both the first connection segment 231 and the third connection segment 233 are parallel to the first connection portion 130. The third connection segment 233 is connected to the first connection segment 231 through the second connection segment 232. Specifically, the second connection segment 232 can be perpendicular to the first connection segment 231, or can be inclined relative to the first connection segment 231; the second connector 240 is provided at one end of the third connection segment 233 away from the second connection segment 232.

[0056] When the above technical solution is adopted, it can be ensured that at least a portion of the end of the second connection part 230 away from the fingerprint sensor 210 is stacked with the first connection part 130 in the thickness direction of the display screen 110, and the structure of the entire second connection part 230 can be made more regular, which is beneficial to improving the neatness of the wiring in the electronic device.

[0057] In the case where the electronic device is provided with a middle frame 310, the first connection portion 130 and the second connection portion 230 can both pass through the opening. As described above, the fingerprint drive unit 220 generally includes a plurality of components, and the plurality of components need to be integrated with the second connection portion 230 and other structures, which requires the fingerprint drive unit 220 to occupy the space on the side of the second connection portion 230 away from the display screen 110. Further, as Figure 1 , Figure 2 , Figure 4 , Figure 6 and Figure 8 As shown, a portion of the second connection portion 230 is connected to the fingerprint sensor 210 and is located on one side of the opening, and the fingerprint drive unit 220 is fixed to the other portion of the second connection portion 230 and is located on the other side of the opening. In this case, the fingerprint drive unit 220 and the fingerprint sensor 210 can be respectively arranged on opposite sides of the middle frame 310, thereby reducing the distance between the middle frame 310 and the display screen 110, making the components in the electronic device more compact and improving the space utilization rate in the electronic device.

[0058] In order to further improve the lightness and thinness of electronic devices and improve the space utilization rate in electronic devices, optionally, as Fig.10 As shown, the display screen 110 and the second circuit board 120 are respectively arranged on opposite sides of the middle frame 310. In this case, the second circuit board 120 does not occupy the space between the display screen 110 and the middle frame 310, thereby reducing the fitting height of the display screen 110 and the middle frame 310. Furthermore, the display screen 110 and the middle frame 310 can be fitted together, so that the distance between the display screen 110 and the middle frame 310 is substantially 0, thereby further reducing the thickness of the electronic device.

[0059] The electronic device disclosed in the embodiment of the present application may be a smart phone, a tablet computer, an e-book reader or a wearable device. Of course, the electronic device may also be other devices, which is not limited in the embodiment of the present application.

[0060] The above embodiments of the present application focus on describing the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.

[0061] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. An electronic device, characterized in that: The invention comprises a display module, a fingerprint recognition module and a first circuit board, wherein the display module comprises a display screen (110), a second circuit board (120) and a first connecting portion (130), the display screen (110) is electrically connected to the second circuit board (120), and the second circuit board (120) is electrically connected to the first circuit board via the first connecting portion (130); The fingerprint recognition module comprises a fingerprint sensor (210), a fingerprint drive unit (220) and a second connection portion (230); the fingerprint sensor (210) is arranged on the back side of a display surface of the display screen (110); the fingerprint sensor (210) and the fingerprint drive unit (220) are spaced apart from each other, and the fingerprint sensor (210) and the fingerprint drive unit (220) are electrically connected to the first circuit board via the second connection portion (230).

2. The electronic device according to claim 1, characterized in that: The electronic device comprises a middle frame (310), the middle frame (310) is provided with an opening, the first connecting portion (130) is a strip-shaped structural member, and an end of the second connecting portion (230) facing away from the fingerprint sensor (210) is arranged in parallel with the first connecting portion (130).

3. The electronic device according to claim 1, characterized in that: The electronic device further comprises a middle frame (310), the middle frame (310) being provided with a first opening (311) and a second opening (312) which are spaced apart from each other, the first connecting portion (130) passing through the first opening (311) to be electrically connected to the first circuit board, and the second connecting portion (230) passing through the second opening (312) to be electrically connected to the first circuit board.

4. The electronic device according to claim 3, characterized in that: The first opening (311) and the second opening (312) are located on the same side of the middle frame (310).

5. The electronic device according to claim 1, characterized in that: The electronic device further comprises a middle frame (310), the middle frame (310) being provided with a third opening (313), and the first connecting portion (130) and the second connecting portion (230) both passing through the third opening (313) to be electrically connected to the first circuit board.

6. The electronic device according to claim 5, characterized in that: In a direction perpendicular to the extension direction of the display screen (110) and the first connecting portion (130), the first connecting portion (130) and the second connecting portion (230) are distributed at intervals.

7. The electronic device according to claim 5, characterized in that: At least a portion of an end of the second connection portion (230) that is away from the fingerprint sensor (210) is stacked with the first connection portion (130) along the thickness direction of the display screen (110).

8. The electronic device according to claim 7, characterized in that: A first connector (140) is provided at one end of the first connecting portion (130) facing away from the second circuit board (120), and a second connector (240) is provided at one end of the second connecting portion (230) facing away from the fingerprint sensor (210), and the first connector (140) and the second connector (240) are distributed along the axial direction of the third opening (313).

9. The electronic device according to claim 8, characterized in that: The second connecting portion (230) comprises a first connecting segment (231), a second connecting segment (232) and a third connecting segment (233); the first connecting segment (231) is connected to the fingerprint sensor (210); the first connecting segment (231) and the third connecting segment (233) both extend along the extension direction of the first connecting portion (130); the third connecting segment (233) is connected to the first connecting segment (231) via the second connecting segment (232); and the second connector (240) is provided at one end of the third connecting segment (233) that is away from the second connecting segment (232).

10. The electronic device according to claim 1, characterized in that: The electronic device comprises a middle frame (310), the middle frame (310) is provided with an opening, a portion of the second connecting portion (230) is connected to the fingerprint sensor (210) and is located on one side of the opening, and the fingerprint drive unit (220) is fixed on another portion of the second connecting portion (230) and is located on the other side of the opening.

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