WO2022052930A1

WO2022052930A1 - Electronic device

Info

Publication number: WO2022052930A1
Application number: PCT/CN2021/117077
Authority: WO
Inventors: 付从华
Original assignee: 维沃移动通信有限公司
Priority date: 2020-09-10
Filing date: 2021-09-08
Publication date: 2022-03-17
Also published as: CN112163463A

Abstract

Disclosed in the present application is an electronic device, relating to the field of communication devices. The electronic device comprises a display module, a fingerprint recognition module, and a first circuit board, the display module comprising a display screen and a second circuit board electrically connected to one another, the display screen having a display panel, the second circuit board and the fingerprint recognition module both being electrically connected to the first circuit board, the fingerprint recognition module comprising a fingerprint sensor and a fingerprint drive unit electrically connected to one another, the second circuit board and the fingerprint sensor both being positioned on the side of the display screen furthest from the display panel, the fingerprint drive unit comprising components, the components being arranged on one of the first circuit board and the second circuit board, and the components being electrically connected to at least one of the first circuit board and the second circuit board.

Description

Electronic equipment

cross reference

The present invention claims the priority of the Chinese patent application with the application number 202010948036.8 and the invention name "Electronic Device" filed with the China Patent Office on September 10, 2020, the entire contents of which are incorporated herein by reference.

technical field

The present application relates to the technical field of communication devices, and in particular, to an electronic device.

Background technique

With the advancement of technology, and affected by the user's preference for a large display area, physical buttons are usually cancelled on the front of many electronic devices, and a fingerprint recognition function is provided on the back of the electronic device. However, it is inconvenient for users to set the fingerprint recognition function on the back of the electronic device, and the under-screen fingerprint recognition module can take into account the large display area and user experience. Therefore, more and more manufacturers begin to adopt this method.

The under-screen fingerprint recognition module usually includes a fingerprint sensor and a fingerprint driving unit. The components in the fingerprint driving unit usually need to be fixed on a circuit substrate such as a flexible circuit board. One end of the circuit substrate is connected to the fingerprint sensor, so that the fingerprint sensor and the fingerprint driver are connected. An electrical connection relationship can be formed between the units. In order to ensure that the fingerprint driving unit can be effectively supported, the components and circuit substrates of the fingerprint driving unit are usually fixed on the circuit board of the display module through an adhesive layer, and the display signal and fingerprint are displayed on the circuit board of the display module. The signals are connected to the first circuit board such as the mainboard of the electronic device, which simplifies the circuit design. However, in the process of practical application of this design scheme, the overall space formed by the stacking of the circuit board of the display module and the fingerprint identification module occupies a relatively large space in the thickness direction of the display screen, which is not conducive to the development of thin and light electronic devices. .

SUMMARY OF THE INVENTION

The present application discloses an electronic device to solve the problem that in the current electronic device, the thickness of the whole formed by stacking a fingerprint identification module and a display module is relatively large, which is not conducive to the development of the electronic device to be light and thin.

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

An embodiment of the present application provides an electronic device, including a display module, a fingerprint identification module and a first circuit board, the display module includes a display screen and a second circuit board that are electrically connected, and the display screen has a display surface , the second circuit board and the fingerprint identification module are both electrically connected to the first circuit board, the fingerprint identification module includes an electrically connected fingerprint sensor and a fingerprint drive unit, the second circuit board and the The fingerprint sensors are all located on the side of the display screen away from the display surface, and the fingerprint driving unit includes components, and the components are arranged on at least one of the first circuit board and the second circuit board. One, and the component is electrically connected to at least one of the first circuit board and the second circuit board.

In the electronic device disclosed in this application, the display module includes a display screen and a second circuit board, the display screen is electrically connected to the second circuit board, the second circuit board and the fingerprint identification module are both electrically connected to the first circuit board, and the fingerprint identification module is electrically connected to the first circuit board. The module includes a fingerprint sensor and a fingerprint driving unit. The second circuit board and the fingerprint sensor are both arranged on the side of the display screen away from the display surface, so that the electronic device has the fingerprint recognition function under the screen, which improves the user experience of the electronic device. Make the electronic device have a larger display area.

The components included in the fingerprint driving unit are arranged on at least one of the first circuit board and the second circuit board, and the components are electrically connected to at least one of the first circuit board and the second circuit board, so that The components can be directly mounted and supported on at least one of the first circuit board and the second circuit board, so that there is no need to separately equip the components in the fingerprint driving unit with bearing devices such as circuit substrates, and furthermore, there is no need to pass through an adhesive layer or the like. Fixing the fingerprint driving unit on the first circuit board or the second circuit board can reduce the thickness of the area where the fingerprint identification module and the display module cooperate with each other, which is beneficial to the development of light and thin electronic devices.

Description of drawings

The drawings described herein are used to provide further understanding of the present application and constitute a part of the present application. The schematic embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation of the present application. In the attached image:

1 is a schematic structural diagram of an electronic device disclosed in an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a part of the structure in the electronic device shown in FIG. 1 in another direction;

Fig. 3 is the circuit block diagram of the electronic device shown in Fig. 1;

FIG. 4 is another schematic structural diagram of the electronic device disclosed in the embodiment of the present application;

Fig. 5 is the circuit block diagram of the electronic device shown in Fig. 4;

FIG. 6 is another schematic structural diagram of the electronic device disclosed in the embodiment of the present application;

Fig. 7 is a circuit block diagram of the electronic device shown in Fig. 6;

FIG. 8 is an assembly diagram of a part of the structure of the electronic device disclosed in the embodiment of the present application.

Description of reference numbers:

110-display screen, 120-second circuit board, 130-second connection part, 140-second connector,

210-fingerprint sensor, 220-fingerprint driving unit, 230-first connection part, 240-first connector,

310-first circuit board, 320-adhesive layer.

detailed description

In order to make the objectives, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be clearly and completely described below with reference to the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

The technical solutions disclosed in the various embodiments of the present application will be described in detail below with reference to the accompanying drawings.

As shown in FIGS. 1 to 8 , an embodiment of the present application discloses an electronic device. The electronic device includes a display module, a fingerprint identification module, and a first circuit board 310 , wherein the first circuit board 310 may be a main board of the electronic device. , Of course, in the case where the electronic device is provided with a sub-board, the first circuit board 310 may also be a sub-board of the electronic device.

The display module includes a display screen 110 and a second circuit board 120. The display screen 110 has a display surface, and the display screen 110 is electrically connected to the second circuit board 120. Specifically, the display screen 110 can be connected to the second circuit board 110 by metal wires or welding. The circuit board 120 is electrically connected, and 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 may be a touch display screen.

Both the second circuit board 120 and the fingerprint identification module are electrically connected to the first circuit board 310 , so that both the display module and the fingerprint identification module of the electronic device can exchange information with the first circuit board 310 . Specifically, both the second circuit board 120 and the fingerprint identification module can be electrically connected to the first circuit board 310 through solder joints or metal wires, and the first circuit board 310 can be disposed on the side of the second circuit board 120 away from the display screen 110 . .

The fingerprint recognition module includes a fingerprint sensor 210 and a fingerprint driving unit 220 . The second circuit board 120 and the fingerprint sensor 210 are both disposed on the side of the display screen 110 away from the display surface. Specifically, the fingerprint sensor 210 may be fixed on one side of the display screen 110 by clamping or the like. In order to improve the reliability of the connection between the fingerprint sensor 210 and the display screen 110 , as shown in FIG. 8 , the fingerprint sensor 210 and the display screen 110 can also be bonded and fixed together by means of the adhesive layer 320 . The fingerprint sensor 210 can be attached to the surface of the display screen 110 as closely as possible, the distance between the fingerprint sensor 210 and the display screen 110 is reduced, the lightness and thinness of the electronic device are improved, and the fingerprint processor 210 and the display screen 110 can be basically removed. The air gap between the two prevents dust from falling between the two, improving the speed and accuracy of fingerprint recognition, thereby improving the user experience.

The fingerprint sensor 210 and the fingerprint driving unit 220 are spaced apart, and the size of the space between the two can be determined according to the space in the electronic device, and actual parameters such as the structure and size of the fingerprint sensor 210 and the fingerprint driving unit 220, which are not limited here. The fingerprint driving unit 220 may 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 may be composed of circuit units composed of components such as integrated circuits, inductors, capacitors, and resistors. Of course, , in the case of different working principles and other conditions, the fingerprint driving unit 220 may also include other modules or other components.

Specifically, the components of the fingerprint driving unit 220 may be disposed on at least one of the first circuit board 310 and the second circuit board 120 , and the components and at least one of the first circuit board 310 and the second circuit board 120 electrical connection. In this case, it is not necessary to separately equip the components in the fingerprint driving unit 220 with bearing devices such as a circuit substrate, and furthermore, it is not necessary to fix the fingerprint driving unit 220 on the first circuit board 310 or the second circuit board 120 through an adhesive layer or the like. On the other hand, the thickness of the area where the fingerprint identification module and the display module cooperate with each other can be reduced, which is beneficial to the development of thin and light electronic devices.

In order to improve the cooperation efficiency between different components in the fingerprint driving unit 220, multiple components in the fingerprint driving unit 220 can be arranged on the first circuit board 310 or the second circuit board 120. Of course, the fingerprint driving unit 220 Some components in the fingerprint driving unit 220 are arranged on the first circuit board 310 , and another part of the components in the fingerprint driving unit 220 are arranged on the second circuit board 120 . Specifically, as shown in FIG. 4 and FIG. 6 , in the case where the components are arranged on the first circuit board 310 , the components can be welded or fixed on the first circuit board 310 by means of conductive adhesive, and the components can be It is electrically connected to the first circuit board 310 , which makes the overall thickness of the display screen 110 , the second circuit board 120 and the fingerprint sensor 210 smaller, and can increase the thickness space occupied by the fingerprint sensor 210 and the display module as a whole. As shown in FIG. 2 , in the case where the components are arranged on the second circuit board 120 , the components can also be fixed on the second circuit board 120 by soldering or adhesive bonding, so that the fingerprint driving unit 220 does not need to be equipped with The circuit substrate does not need to use the adhesive layer to fix the fingerprint driving unit 220 on the second circuit board 120, which can also make the overall thickness of the display module and the fingerprint recognition module relatively small, and the fixed components During the process, the components and the second circuit board 120 can be electrically connected together.

As described above, both the second circuit board 120 and the fingerprint recognition module are connected to the first circuit board 310 . In the case where the components are arranged on the second circuit board 120 , the fingerprint sensor 210 can optionally be directly connected to a metal wire. It is electrically connected to the first circuit board 310, and the second circuit board 120 may also be electrically connected to the first circuit board 310 through metal wires. In order to enable information interaction between the fingerprint sensor 210 and the fingerprint driving unit 220 , the fingerprint sensor 210 may be electrically connected to the fingerprint driving unit 220 disposed on the second circuit board 120 through the first circuit board 310 .

Further, in order to shorten the connection path between the components and reduce the difficulty of designing and processing the circuit structure between the components, optionally, as shown in FIG. 1 and FIG. 3 , the fingerprint sensor 210 can be electrically connected to the second circuit board 120, So that the fingerprint sensor 210 can be directly electrically connected to the fingerprint driving unit 220 , and the second circuit board 120 is electrically connected to the first circuit board 310 , so that the fingerprint signal and the display signal are transmitted to the first circuit board 310 together.

In another embodiment of the present application, as shown in FIGS. 4-7 , components are disposed on the first circuit board 310 , and the components are electrically connected to the first circuit board 310 . In this case, the fingerprint sensor 210 in the fingerprint recognition module can also be connected to the second circuit board 120 , and the display screen 110 and the fingerprint sensor 210 can be electrically connected to the first circuit board 310 through the second circuit board 120 . Therefore, only one connection position needs to be set on the first circuit board 310 , which simplifies the difficulty of layout of the components of the first circuit board 310 .

In addition, the electronic device is usually provided with a middle frame, so as to provide support and protection for components such as the display screen 110 and the first circuit board 310 in the electronic device through the middle frame, and the second circuit board 120 can be attached to the display screen 110. surface to further reduce the distance between the display screen 110 and the second circuit board 120 . The second circuit board 120 and the first circuit board 310 are usually disposed on opposite sides of the middle frame, respectively. Therefore, an opening needs to be provided on the middle frame to connect the second circuit board 120 and the first circuit board 310 together. In the case where the fingerprint sensor 210 is connected to the first circuit board 310 through the second circuit board 120 , only one opening needs to be formed on the middle frame, which makes the overall structural strength of the middle frame relatively high.

More specifically, the fingerprint recognition module may further include a first connection portion 230, the first connection portion 230 may be a flexible circuit board, and the fingerprint sensor 210 may be electrically connected to the second circuit board 120 through the first connection portion 230, and through the Connectors are provided at opposite ends of the first connection portion 230, which can further improve the connection efficiency between the fingerprint sensor 210 and the second circuit board 120. Specifically, the end of the first connection portion 230 can be provided with a first connector 240.

Correspondingly, the display module may further include a second connection portion 130, which may also be a flexible circuit board, and the second circuit board 120 may be connected to the first circuit board 310 through the second connection portion 130, so as to connect the fingerprint Signals and display signals are transmitted to the first circuit board 310 . The connection efficiency between the display module and the first circuit board 310 can also be improved by arranging connectors at opposite ends of the second connecting portion 130. Specifically, the end of the first connecting portion 230 can be provided with a first Two connectors 140 .

Optionally, the fingerprint sensor 210 and the second circuit board 120 are spaced apart. Specifically, the fingerprint sensor 210 and the second circuit board 120 may be respectively disposed at different areas on the surface of the display screen 110. In this case, the The thickness of the whole composed of the small display screen 110 , the second circuit board 120 and the fingerprint sensor 210 . Further, as shown in FIG. 4 , the first connection part 230 can be connected to the side of the fingerprint sensor 210 facing the second circuit board 120 and extended toward the second circuit board 120 , that is, the first connection part 230 The two ends are respectively connected to the fingerprint sensor 210 and the second circuit board 120, and the middle of the first connection part 230 is located between the fingerprint sensor 210 and the second circuit board 120, which can further improve the space utilization in the electronic device, and The length of the first connection part 230 can be reduced.

Of course, the components of the fingerprint driving unit 220 are disposed on the second circuit board 120, and the fingerprint sensor 210 can also be electrically connected to the second circuit board 120 through the first connecting portion 230, and the first connecting portion 230 is disposed on the fingerprint sensor. 210 faces one side of the second circuit board 120 and extends toward the second circuit board 120 .

In the case where the components of the fingerprint driving unit 220 are arranged on the first circuit board 310, as shown in FIG. 6 and FIG. The second circuit board 120 is connected to the first circuit board 310 through the second connection part 130. In this case, the display signal and the fingerprint signal can be transmitted to the first circuit board 310 separately, so that the first circuit board 310 is connected to the fingerprint sensor respectively. 210 communicates with the second circuit board 120 independently, so that in the process of designing the first circuit board 310 , there is no need to provide components or circuits for separating the display signal and the fingerprint signal, so as to reduce the design difficulty of the first circuit board 310 .

As mentioned above, an electronic device is usually provided with a middle frame that provides support and protection. In the case of adopting the above technical solution, a first opening and a second opening can be opened on the middle frame, and the first opening and the second opening can be formed on the middle frame. The openings are spaced apart from each other, the first connection part 230 can be electrically connected to the first circuit board through the first opening, and the second connection part 130 can be electrically connected to the first circuit board 310 through the second opening. Both a connecting portion 230 and the second connecting portion 130 can easily extend from one side of the middle frame to the other side of the middle frame, and are electrically connected to the first circuit board 310 .

Specifically, the width and height of the first opening may be determined according to the width and thickness of the first connecting portion 230, and the size of the first opening may not exceed the size of the first connecting portion 230 in the corresponding direction too much, so that the Under the condition that a connecting portion 230 can pass through the first opening, the structural strength of the middle frame is relatively strong. Correspondingly, the size of the second opening may also be determined according to the size of the second connecting portion 130 in the corresponding direction. It should be noted that, if the first connecting part 230 and/or the second connecting part 130 are provided with components such as connectors and need to pass through the first opening and/or the second opening, the first opening and/or the second opening can be Or the size of the second opening is correspondingly enlarged, which can be flexibly changed by those skilled in the art according to the actual situation.

In addition, when the first opening and the second opening are spaced apart from each other, the local strength of the area where the first opening and the second opening are located on the middle frame can be reinforced to a certain extent by means of the connection structure between the two, so as to ensure the middle frame. The structural strength is relatively high anywhere on the frame.

More specifically, the first opening and the second opening may be disposed on opposite sides of the middle frame, respectively. In this case, the extending directions of the first connecting portion 230 and the second connecting portion 130 are opposite, and the first connecting portion 230 The second connecting portion 130 extends to one side of the display screen 110 , and the second connecting portion 130 extends to the other side of the display screen 110 . In the case of adopting this technical solution, the distance between the first opening and the second opening can be relatively large, and since the two are located on different sides of the middle frame, the first opening and the second opening can be set on the middle frame. The effect of the second opening on the local structural strength of the middle frame is relatively small, so as to further ensure better uniformity of the overall structural strength of the middle frame.

In addition, a filling structure may also be provided in the gap between the first opening and the first connecting portion 230, and/or a filling structure may be provided in the gap between the second opening and the second connecting portion 130, so as to further strengthen the middle frame. Structural strength.

In another embodiment of the present application, the first opening and the second opening are located on the same side of the middle frame. In this case, the extension directions of the first connecting portion 230 and the second connecting portion 130 are the same, and both of them extend toward the same side. The same side of the display screen 110 extends through the first opening and the second opening respectively to be electrically connected with the first circuit board 310 . It should be noted that, the first opening and the second opening are not necessarily arranged on the side edge of the middle frame, but may also be arranged at other positions near the edge of the middle frame.

In the case of adopting the above technical solution, since the first connection portion 230 and the second connection portion 130 extend in the same direction, one of the alignment of the first connection portion 230 and the first opening and the alignment of the second connection portion 130 and the second opening is performed. When one group is formed, the other group is also basically aligned; at the same time, when the first connection part 230 and the second connection part 130 extend in the same direction, the first connection part 230 and the second connection part 130 only occupy 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 connecting part 230 and the second connecting part 130 is relatively small, which is convenient for storage and transportation.

In yet another embodiment of the present application, a third opening may also be provided on the middle frame, and both the first connecting portion 230 and the second connecting portion 130 are electrically connected to the first circuit board 310 through the third opening, that is, The first connecting part 230 and the second connecting part 130 pass through the same opening to the other side of the middle frame. The difficulty and accuracy requirements are generally less than the difficulty and accuracy requirements for opening two openings.

Further, in the direction perpendicular to the extending direction of the display screen 110 and the first connecting part 230, the first connecting part 230 and the second connecting part 130 can be distributed at intervals, wherein the third opening can be arranged in the middle frame at The side where the display screen 110 is located in the width direction can also be set on the side where the display screen 110 is located in the length direction in the middle frame.

In more detail, when the third opening is located on the side of the length direction of the display screen 110 , the extending direction of the first connecting portion 230 is the width direction of the display screen 110 , which is perpendicular to the width direction of the display screen 110 and the first connecting portion 230 . The direction of the extending direction is the width direction of the display screen 110 , that is to say, the first connecting portion 230 and the second connecting portion 130 may be spaced apart along the length direction of the display screen 110 , or the first connecting portion 230 and the second connecting portion 130 The projections of the connecting portion 130 in the direction perpendicular to the display screen 110 are not coincident.

In this case, the size of the third opening in the length direction of the display screen 110 is relatively large, which can reduce the difficulty of piercing the first connecting part 230 and the second connecting part 130 to a certain extent, and there is no need for the third opening. For special adjustment of the positions of the first connecting part 230 and the second connecting part 130, the size of the third opening only needs to be determined according to the distance between the first connecting part 230 and the second connecting part 130 in the length direction of the display screen 110, and then the size of the third opening needs to be determined from the fingerprint The sensor 210 and the second circuit board 120 can be pulled out from the same side of the first connection part 230 and the second connection part 130 , which can reduce the overall processing difficulty of the electronic device to a certain extent.

Of course, the size of the third opening in the length direction of the display screen 110 can also be reduced, so as to further improve the structural strength of the middle frame. In this case, the first connection part 230 and the second connection part 130 may be stacked and arranged to pass through the smaller third opening at the same time.

Further, the first surfaces of the first circuit board 310 and the second circuit board 120 both include an installation area and a connection area outside the installation area, the installation area can accommodate the components of the fingerprint driving unit 220, and the fingerprint sensor 210 can be connected by The connector is connected to at least one of the first circuit board 310 and the second circuit board 120. By arranging the connector in the connection area, the connector and the components of the fingerprint driving unit 220 can be staggered, preventing the components from stacking up and increasing the overall high.

More specifically, when the components are mounted on the first circuit board 310 , the fingerprint sensor 210 may be electrically connected to the first circuit board 310 through the first connection back 230 , and the second circuit board 120 may be electrically connected to the second circuit board 130 through the second connection portion 130 . To be electrically connected to the first circuit board 310 , the ends of the first connection part 230 and the end of the second connection part 130 may be provided with connectors, and each connector may be provided in the connection area of the first circuit board 310 . Similarly, when the fingerprint sensor 210 is connected to the second circuit board 120 through the first connection part 230 , the connector at the end of the first connection part 230 may be disposed in the connection area of the second circuit board 120 .

The electronic device disclosed in the embodiments 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 are not limited in this embodiment of the present application.

The above embodiments of this application mainly describe the differences between the various embodiments. As long as the different optimization features of the various embodiments are not contradictory, they can be combined to form better embodiments. No longer.

The above descriptions are merely examples of the present application, and are not intended to limit the present application. Various modifications and variations of this application are possible for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the scope of the claims of this application.

Claims

An electronic device, comprising a display module, a fingerprint identification module and a first circuit board (310), the display module comprising a display screen (110) and a second circuit board (120) electrically connected, the display screen (110) has a display surface, the second circuit board (120) and the fingerprint identification module are both electrically connected to the first circuit board (310), and the fingerprint identification module includes an electrically connected fingerprint sensor ( 210) and a fingerprint driving unit (220), the second circuit board (120) and the fingerprint sensor (210) are both located on the side of the display screen (110) away from the display surface, and the fingerprint driver The unit (220) includes a component provided on at least one of the first circuit board and the second circuit board, and the component is associated with the first circuit board and the second circuit board At least one of the circuit boards is electrically connected.
The electronic device according to claim 1, wherein the component is provided on the second circuit board (120), and the component is electrically connected to the second circuit board (120).
The electronic device according to claim 1, wherein the component is provided on the first circuit board (310), and the component is electrically connected to the first circuit board (310).
The electronic device according to claim 3, wherein the fingerprint identification module further comprises a first connection part (230), the display module further comprises a second connection part (130), the fingerprint sensor (210) The second circuit board (120) is electrically connected to the second circuit board (120) through the first connection part (230), and the second circuit board (120) is connected to the first circuit board (120) through the second connection part (130). 310) Electrical connection.
The electronic device according to claim 4, wherein the fingerprint sensor (210) is spaced apart from the second circuit board (120), and the first connection part (230) is connected to the fingerprint sensor (210) facing the side of the second circuit board (120) and extending toward the second circuit board (120).
The electronic device according to claim 3, wherein the fingerprint identification module further comprises a first connection part (230), the display module further comprises a second connection part (130), the fingerprint sensor (210) The first circuit board (310) is electrically connected to the first circuit board (310) through the first connection part (230), and the second circuit board (120) is connected to the first circuit board (310) through the second connection part (130). 310) Electrical connection.
The electronic device according to claim 6, wherein the electronic device further comprises a middle frame, the middle frame is provided with a first opening and a second opening spaced apart from each other, and the first connecting portion (230) passes through The first opening is electrically connected to the first circuit board (310), and the second connection portion (130) is electrically connected to the first circuit board (310) through the second opening.
The electronic device of claim 7, wherein the first opening and the second opening are located on the same side of the middle frame.
The electronic device according to claim 6, wherein the electronic device further comprises a middle frame, the middle frame is provided with a third opening, the first connection part (230) and the second connection part (130) They are all electrically connected to the first circuit board (310) through the third opening.
The electronic device of claim 1, wherein the first surfaces of the first circuit board (310) and the second circuit board (120) each include a mounting area and a connection area located outside the mounting area , the components are arranged in the installation area, the fingerprint sensor (210) is arranged with a connector, and the connector is arranged in the connection area.