WO2019037593A1 - Fingerprint identification assembly and electronic device - Google Patents

Abstract

The invention relates to a fingerprint identification assembly (20) and an electronic device (100). The electronic device (100) includes: a motherboard (30), a display assembly (10), and a fingerprint recognition assembly (20). The display assembly (10) is provided with a first flexible printed circuit board (140), and the fingerprint recognition assembly (20) is provided with a second flexible printed circuit board (210). ). One of the first flexible printed circuit board (140) and the second flexible printed circuit board (210) is communicatively coupled to the main board (30).

Description

Fingerprint identification component and electronic device Technical field

The present application relates to the field of communication device technologies, and in particular, to a fingerprint recognition component and an electronic device.

Background technique

In the related art, the fingerprint module and the display component are respectively connected to the main board or the sub board through connectors on the respective FPCs, which may result in complicated assembly. Moreover, the fingerprint module and the display component are staggered, and the fingerprint module occupies a large space, which reduces the screen ratio of the electronic device.

Summary of the invention

The present application is intended to address at least one of the technical problems existing in the prior art. To this end, the present application proposes an electronic device that has the advantages of convenient assembly and compact structure.

The present application also proposes a fingerprint recognition component, which has the advantages of compact structure and convenient assembly.

The present application also proposes an electronic device comprising the fingerprint recognition component described above.

An electronic device according to an embodiment of the present application includes: a main board; a display component having a first flexible circuit board; and a fingerprint recognition component having a second flexible circuit board, the second flexible circuit The board is electrically connected to the first flexible circuit board, and one of the first flexible circuit board and the second flexible circuit board is communicatively coupled to the main board.

According to the electronic device of the embodiment of the present application, the first flexible circuit board of the display component is electrically connected to the second flexible circuit board of the fingerprint recognition component, and one of the first flexible circuit board and the second flexible circuit board communicates with the main board The connection can thereby reduce the number of connectors on the main board, and can shorten the length of the first flexible circuit board or the second flexible circuit board, thereby saving material usage and saving production cost. Moreover, the circuit layout of the electronic device is optimized, the internal circuit layout of the electronic device is more compact and reasonable, and the structural compactness of the electronic device is improved.

According to some embodiments of the present application, the first flexible circuit board is provided with a first BTB connector, and the second flexible circuit board is provided with a second BTB connector adapted to the first BTB connector, The first BTB connector is soldered to the second BTB connector. Thereby, the electrical connection between the first flexible circuit board and the second flexible circuit board can be realized by the first BTB connector and the second BTB connector, and the first BTB connector is soldered to the second BTB connector, which can be enhanced The robustness and reliability of the first BTB connector connection.

According to some embodiments of the present application, the first flexible circuit board is provided with a first BTB connector, and the second flexible circuit board is provided with a second BTB connector adapted to the first BTB connector, The first BTB connector is plugged into the second BTB connector. Thereby, the electrical connection between the first flexible circuit board and the second flexible circuit board can be achieved by the first BTB connector and the second BTB connector. Moreover, the first BTB connector is inserted into the second BTB connector to facilitate the connection assembly of the first BTB connector and the second BTB connector, thereby improving assembly efficiency.

In some embodiments of the present application, one of the first flexible circuit board and the second flexible circuit board has a third BTB connector, and the third BTB connector is communicatively coupled to the main board. Thereby, the communication connection between the display component and the main board, between the fingerprint recognition component and the main board can be realized by the third BTB connector.

According to some embodiments of the present application, the main board is provided with a fourth BTB connector, and the third BTB connector is soldered to the fourth BTB connector. Thereby, the third BTB connector can be connected to the fourth BTB connector to realize a communication connection between the display component and the main board, between the fingerprint recognition component and the main board. Moreover, the third BTB connector is soldered to the fourth BTB connector to enhance the reliability and stability of the connection of the third BTB connector to the fourth BTB connector.

According to some embodiments of the present application, the main board is provided with a fourth BTB connector, and the third BTB connector is plugged with the fourth BTB connector. Thereby, the third BTB connector can be connected to the fourth BTB connector to realize a communication connection between the display component and the main board, between the fingerprint recognition component and the main board. Moreover, the third BTB connector is inserted into the fourth BTB connector to facilitate the assembly of the connection of the third BTB connector and the fourth BTB connector, thereby improving assembly efficiency.

In some embodiments of the present application, the display assembly includes: a substrate; a display screen, the display screen is attached to the substrate, the first flexible circuit board is communicatively coupled to the display screen; and a protective panel, The protective plate is located on a side of the display screen away from the substrate, the protective plate is attached to the display screen, and the fingerprint recognition component is embedded in the protective plate. Thereby, the structure of the electronic device can be made more compact, and the screen ratio of the electronic device can be improved.

According to some embodiments of the present application, the first flexible circuit board is disposed adjacent to the fingerprint recognition component, the first flexible circuit board has a first bent portion, and the first bent portion encloses a portion of the substrate Side. Thereby, the circuit layout of the electronic device is optimized.

In some embodiments of the present application, the second flexible circuit board has a second bent portion that wraps a portion of a side of the substrate. Thereby, the circuit layout of the electronic device is further optimized.

According to some embodiments of the present application, the second bent portion is stacked with the first bent portion. Thereby, the circuit layout of the electronic device can be made compact and reasonable.

A fingerprint recognition assembly according to an embodiment of the present application includes: a chip; and a second flexible circuit board including a connection segment and an extension, one end of the connection segment being connected to the chip, the extension A segment is coupled to the other end of the connecting segment, the connecting segment having a different direction of extension than the extending segment.

According to the fingerprint recognition assembly of the embodiment of the present application, by arranging the second flexible circuit board as the connection section and the extension section having different extension directions, the second flexible circuit board can be concentrated near the chip, and the second flexible circuit board can be reduced. The occupied space makes the structure of the fingerprint identification component more compact and reasonable. Moreover, the connection between the second flexible circuit board and the other circuit boards is facilitated, thereby optimizing the layout of the internal components of the electronic device.

According to some embodiments of the present application, the chip is formed in an elongated shape, and the connecting segment extends along a length direction of the chip. Thereby, the processing and layout of the fingerprint recognition component is facilitated.

Further, the width of the connecting segment is W1, and the width of the chip is W2, which satisfies: W1≤W2. Thereby, the connection between the connection segment and the chip is facilitated, and the connection and the connection between the chip and the chip can be improved.

In some embodiments of the present application, the chip is formed in an elongated shape, and the connecting segment extends in a length direction perpendicular to the elongated strip. Thereby, the second flexible circuit board connection of the fingerprint recognition component can be diversified.

According to some embodiments of the present application, the connecting section is perpendicular to the extension. Thereby, the manufacturing of the second flexible circuit board is facilitated, and the connection strength between the connecting section and the extended section can be improved.

In some embodiments of the present application, the extension has a second bend. Thereby, the layout optimization of the second flexible circuit board is facilitated.

An electronic device according to an embodiment of the present application, comprising: a main board; a display assembly having a first flexible circuit board; and the fingerprint recognition component, the second flexible circuit board and the first flexible circuit The board is electrically connected, and one of the first flexible circuit board and the second flexible circuit board is communicatively coupled to the main board.

According to the electronic device of the embodiment of the present application, the first flexible circuit board of the display component is electrically connected to the second flexible circuit board of the fingerprint recognition component, and one of the first flexible circuit board and the second flexible circuit board communicates with the main board The connection can thereby reduce the number of connectors on the main board, and can shorten the length of the first flexible circuit board or the second flexible circuit board, thereby saving material usage and saving production cost. Moreover, the circuit layout of the electronic device is optimized, the internal circuit layout of the electronic device is more compact and reasonable, and the structural compactness of the electronic device is improved. Moreover, by arranging the second flexible circuit board to have connecting sections and extensions having different extending directions, the second flexible circuit board can be concentrated near the chip, thereby making the structure of the fingerprint recognition component more compact and reasonable.

Additional aspects and advantages of the present invention will be set forth in part in the description which follows.

DRAWINGS

The above and/or additional aspects and advantages of the present application will become apparent and readily understood from

FIG. 1 is a partial schematic structural diagram of an electronic device according to an embodiment of the present application; FIG.

2 is an exploded view of a partial structure of an electronic device according to an embodiment of the present application;

3 is a schematic structural diagram of a fingerprint identification component of an electronic device according to an embodiment of the present application;

FIG. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Reference mark:

Electronic device 100,

Display assembly 10, substrate 110, display screen 120, shield 130, first flexible circuit board 140, first BTB connector 141, first bent portion 142, third BTB connector 143,

The fingerprint recognition component 20, the second flexible circuit board 210, the connection section 210a, the extension 210b, the second BTB connector 211, the second bending part 212, the chip 220,

Main board 30, fourth BTB connector 310.

Detailed ways

The embodiments of the present application are described in detail below, and the examples of the embodiments are illustrated in the drawings, wherein the same or similar reference numerals are used to refer to the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the drawings are exemplified and are only used to explain the "upper", "lower", "front", "back", "left", "right", "vertical", " The orientation or positional relationship of the indications of "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, for convenience of description of the present application and simplified description, rather than It is to be understood that the device or elements referred to have a particular orientation, are constructed and operated in a particular orientation and are therefore not to be construed as limiting. Furthermore, features defining "first" and "second" may include one or more of the features, either explicitly or implicitly. In the description of the present application, "a plurality" means two or more unless otherwise stated.

In the description of the present application, it should be noted that the terms "installation", "connected", and "connected" are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or integrally connected; can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components. The specific meanings of the above terms in the present application can be understood in the specific circumstances for those skilled in the art.

An electronic device 100 according to an embodiment of the present application will be described below with reference to FIGS.

As shown in FIG. 1 to FIG. 4, according to the electronic device 100 of the embodiment of the present application, the electronic device 100 includes a main board 30, a display component 10, and a fingerprint recognition component 20.

Specifically, as shown in FIGS. 1 and 2, the display assembly 10 has a first flexible circuit board 140. Thereby, the first flexible circuit board 140 can be connected to the main board 30 to realize two-way communication between the main board 30 and the display assembly 10. It can be understood that the display component 10 can be used to display information input by the user or output information of the electronic device 100 and various menus of the electronic device 100, so that the user can intuitively and efficiently read related information. The user can also input information through the display component 10 and transmit it to the main board 30 through the first flexible circuit board 140. The main board 30 can process the input information and display and control the display content of the display component 10 accordingly.

The fingerprint recognition component 20 has a second flexible circuit board 210. Thereby, the two-way communication between the fingerprint recognition component 20 and the main board 30 can be realized by the second flexible circuit board 210 to realize the control of the fingerprint recognition component 20 by the main board 30. It should be noted that when the user's finger gradually approaches the fingerprint recognition component 20, the fingerprint recognition component 20 can identify the fingerprint information of the user and transmit the fingerprint information to the motherboard 30 of the electronic device 100. The motherboard 30 can issue a corresponding message according to the fingerprint information. Control instructions. It can be understood that the security performance of the electronic device 100 is greatly enhanced by providing the fingerprint recognition component 20 because the fingerprint texture is highly recognizable and has good stability.

The second flexible circuit board 210 is electrically connected to the first flexible circuit board 140, and one of the first flexible circuit board 140 and the second flexible circuit board 210 is communicatively coupled to the main board 30. The "communication connection" described here may have an electrical connection function or a signal transmission function. It should be noted that the second flexible circuit board 210 may be first connected to the first flexible circuit board 140 and communicated with the main board 30 through the first flexible circuit board 140; or the first flexible circuit board 140 may be connected first. The second flexible circuit board 210 is connected to the main board 30 via the second flexible circuit board 210. Thereby, the number of connectors on the main board 30 can be reduced, and the length of the first flexible circuit board 140 or the second flexible circuit board 210 can be shortened, thereby saving material usage and saving production costs. Moreover, the layout of the internal circuits of the electronic device 100 is optimized, so that the circuit layout of the electronic device 100 is more reasonable and reliable.

According to the electronic device 100 of the embodiment of the present application, the first flexible circuit board 140 of the display assembly 10 and the second flexible circuit board 210 of the fingerprint recognition component 20 are electrically connected, and the first flexible circuit board 140 and the second flexible circuit board One of the 210s is in communication with the main board 30, whereby the number of connectors on the main board 30 can be reduced, and the length of the first flexible circuit board 140 or the second flexible circuit board 210 can be shortened, thereby saving material usage and saving. Production costs. Moreover, the circuit layout of the electronic device 100 is optimized, the internal circuit layout of the electronic device 100 is more compact and reasonable, and the structural compactness of the electronic device 100 is improved.

According to some embodiments of the present application, as shown in FIGS. 1 and 2, the first flexible circuit board 140 is provided with a first BTB connector 141, and the second flexible circuit board 210 is provided with the first BTB connector 141. The second BTB connector 211, the first BTB connector 141 is soldered to the second BTB connector 211. The "first BTB connector" and the "second BTB connector" as used herein mean a board to board connector that can be used for a printed circuit board (PCB circuit board) or a flexible circuit board (FPC board). The connection between the two to achieve electrical connection and signal transmission between the two boards. Thereby, the first flexible circuit board 140 and the second flexible circuit board 210 are connected to form an "integrated circuit board group" through the connection between the first BTB connector 141 and the second BTB connector 211, through which the whole The communication connection between the circuit board group and the main board 30 can realize the communication connection between the display component 10 and the main board 30, and between the fingerprint recognition component 20 and the main board 30. Thereby, the connection circuit between the fingerprint recognition component 20, the display component 10 and the main board 30 is simplified, and the circuit layout is compact and reliable.

In an embodiment of the present application, the first BTB connector 141 and the second BTB connector 211 may be a plug connection, thereby facilitating the connection between the first BTB connector 141 and the second BTB connector 211. Connect to improve assembly efficiency. Of course, the connection manner of the first BTB connector 141 and the second BTB connector 211 is not limited thereto. For example, in another embodiment of the present application, between the first BTB connector 141 and the second BTB connector 211 It is also possible to solder the connection, whereby the connection reliability and stability between the first BTB connector 141 and the second BTB connector 211 can be enhanced, thereby improving the stability and reliability of the operation of the electronic device 100.

In some embodiments of the present application, one of the first flexible circuit board 140 and the second flexible circuit board 210 has a third BTB connector 143 that is in communication with the motherboard 30. That is, the third BTB connector 143 may be disposed on the first flexible circuit board 140, or the third BTB connector 143 may be disposed on the second flexible circuit board 210, thereby passing through the third BTB connector 143 and the main board. The connection of 30 realizes the communication connection between the display component 10 and the main board 30, and between the fingerprint recognition component 20 and the main board 30. It can be understood that the first flexible circuit board 140 and the second flexible circuit board 210 can be first connected as an “integrated circuit board group”, and then communicated with the main board 30 through the third BTB connector 143 to implement the display component. A communication connection between the 10 and the motherboard 30, the fingerprint recognition component 20 and the motherboard 30. Thereby, the circuit layout of the electronic device 100 is optimized.

In some embodiments of the present application, the third BTB connector 143 is in communication with the display assembly 10. It should be noted that the third BTB connector 143 can be disposed on the display assembly 10, whereby the first flexible circuit board 140 can be electrically connected to the second flexible circuit board 210 and can pass through the third BTB connector on the display assembly 10. 143 is in communication with the motherboard 30. It can be understood that the third BTB connector 143 on the display assembly 10 can be disposed close to the main board 30, thereby facilitating the convenience and reliability of the connection between the third BTB connector 143 and the main board 30, thereby further The circuit layout of the electronic device 100 is optimized.

According to some embodiments of the present application, the main board 30 may be provided with a fourth BTB connector 310, and the third BTB connector 143 is soldered or plugged with the fourth BTB connector 310. It can be understood that by providing the fourth BTB connector 310 on the main board 30, the connection between the display component 10 and the main board 30 and the fingerprint recognition component can be realized by the connection of the third BTB connector 143 and the fourth BTB connector 310. 20 communication connection with the motherboard 30.

In one embodiment of the present application, the third BTB connector 143 can be soldered to the fourth BTB connector 310, whereby the reliability and robustness of the connection of the third BTB connector 143 and the fourth BTB connector 310 can be improved. . The connection manner of the third BTB connector 143 and the fourth BTB connector 310 is not limited thereto. For example, in another embodiment of the present application, the third BTB connector 143 and the fourth BTB connector 310 may also be The connection is plugged in, whereby the connection efficiency of the third BTB connector 143 and the fourth BTB connector 310 can be improved.

In some embodiments of the present application, as shown in FIGS. 1 and 2, the display assembly 10 may include a substrate 110, a display screen 120, and a shield 130. The display 120 is attached to the substrate 110, and the first flexible circuit board 140 is communicatively coupled to the display 120. Therefore, the display screen 120 can be supported by the substrate 110 to facilitate the fixed assembly of the display screen 120 and improve the firmness and reliability of the display screen 120. It can be understood that the display screen 120 can be communicatively coupled to the main board 30 through the first flexible circuit board 140, and the display screen 120 can be the touch screen display screen 120. Thus, the user can input information and perform related control operations through the display screen 120. The main board 30 can also transmit control information and related display information to the display screen 120 through the first flexible circuit board 140.

The protective plate 130 is located on a side of the display screen 120 away from the substrate 110. The protective plate 130 is attached to the display screen 120. Thus, the protective plate 130 can protect the display screen 120 from being scratched, damaged by water, and the like. Thereby the service life of the display assembly 10 is increased.

As shown in FIG. 1 and FIG. 2, the fingerprint recognition component 20 is embedded in the shield 130, thereby facilitating the fixed assembly of the fingerprint recognition component 20, and the fingerprint recognition component 20 can be brought close to the outside of the electronic device 100 to facilitate the user. operating. The "outer side" as referred to herein can be understood as the side of the electronic device 100 facing the outside. In addition, the fingerprint recognition component 20 is embedded in the protection panel 130, which can reduce the space occupation ratio of the fingerprint recognition component 20, thereby making the structure of the electronic device 100 more compact and reasonable, and improving the screen ratio of the electronic device 100.

According to some embodiments of the present application, as shown in FIGS. 1 and 2, the first flexible circuit board 140 may be disposed adjacent to the fingerprint recognition component 20, thereby facilitating the second flexible circuit board 210 of the fingerprint recognition component 20 and the first flexibility. The connections between the boards 140 are used to further optimize the circuit layout. As shown in FIGS. 1 and 4, the fingerprint recognition component 20 can be disposed at a lower portion of the front surface of the electronic device 100 (up and down directions as shown in FIGS. 1 and 4), thereby facilitating the user to operate the fingerprint recognition component 20. Accordingly, the first flexible circuit board 140 may be disposed adjacent to the lower end of the electronic device 100 to facilitate the connection between the first flexible circuit board 140 and the second flexible circuit board 210.

As shown in FIGS. 1-3, the first flexible circuit board 140 has a first bent portion 142, and the first bent portion 142 covers a portion of the side of the substrate 110. It can be understood that the first flexible circuit board 140 can be communicatively coupled to the display screen 120, and the display screen 120 can be sandwiched between the shield 130 and the substrate 110. By providing the first bending portion 142 on the first flexible circuit board 140, the first bending portion 142 covers a portion of the side of the substrate 110, and the first flexible circuit board 140 is bent away from the substrate 110 after being bent by the first bending portion 142. The surface of the display screen 120 is attached, whereby the occupied space of the first flexible circuit board 140 can be reduced, and the space utilization ratio of the electronic device 100 can be improved.

In some embodiments of the present application, the second flexible circuit board 210 has a second bent portion 212 that wraps a portion of the side of the substrate 110. It should be noted that the fingerprint identification component 20 can be embedded in the shield plate 130. The second bent portion 212 is disposed on the second flexible circuit board 210, and the second bent portion 212 covers a portion of the side of the substrate 110. The circuit board 210 is bent by the second bent portion 212 to be attached to the first flexible circuit board 140 to facilitate the layout of the second flexible circuit board 210, thereby reducing the space occupation of the second flexible circuit board 210.

It can be understood that since the first flexible circuit board 140 and the second flexible circuit board 210 have good flexibility, the "first bent portion 142" and the "second bent portion 212" described above need not be flexible. The circuit board is specially processed. When the first flexible circuit board 140 and the second flexible circuit board 210 are assembled, the first bent portion 142 may be formed by bending the first flexible circuit board 140, and the second flexible circuit is bent by the bent portion. The plate 210 forms a second bent portion 212. Of course, processing may be performed at the first bent portion 142 of the first flexible circuit board 140 and the second bent portion 212 of the second flexible circuit board 210, such as reinforcing the first bent portion 142 and the second bent portion. The wear resistance, structural strength, and the like of the 210 prevent the first bent portion 142 and the second bent portion 212 from being fatigue-fractured, affecting signal transmission of the first flexible circuit board 140 and the second flexible circuit board 210.

According to some embodiments of the present application, as shown in FIGS. 1 and 2, the second bent portion 212 is laminated with the first bent portion 142. It should be noted that, as shown in FIG. 1 and FIG. 2 , the free end of the first flexible circuit board 140 bent by the first bent portion 142 is adhered to the surface of the substrate 110 away from the display screen 120 . The second bent portion 212 of the second flexible circuit board 210 is laminated with the first bent portion 142, and the free end of the second flexible circuit board 210 bent by the second bent portion 212 is attached to the first flexible circuit. The free end of the plate 140 is remote from the surface of the substrate 110. Thereby, the layout of the first flexible circuit board 140 and the second flexible circuit board 210 can be made more compact and reasonable, and the space occupancy between the first flexible circuit board 140 and the second flexible circuit board 210 can be reduced.

It should be noted that "electronic device 100" as used herein includes, but is not limited to, being configured to be connected via a wireline (such as via a public switched telephone network (PSTN), digital subscriber line (DSL), digital cable, direct cable. Connected, and/or another data connection/network) and/or via (eg, for cellular networks, wireless local area networks (WLANs), digital television networks such as DVB-H networks, satellite networks, AM-FM broadcast transmitters, and A device that receives/transmits a communication signal by a wireless interface of another communication terminal. Examples of electronic device 100 include, but are not limited to, satellite or cellular telephones; personal communication system (PCS) terminals that can combine cellular radiotelephone with data processing, fax, and data communication capabilities; can include radiotelephones, pagers, Internet/intranet connections PDAs, web browsers, memo pads, calendars, and/or global positioning system (GPS) receivers; and conventional laptop and/or palm-sized receivers or other electronic devices including radiotelephone transceivers.

The electronic device 100 may be various devices capable of acquiring data from the outside and processing the data, or the electronic device 100 may be various devices that have a built-in battery and are capable of taking current from the outside to charge the battery, for example, Mobile phones (embodiments as shown in Figures 1-4), tablets, computing devices or information display devices, and the like. The mobile phone is only an example of an electronic device 100. The present application is not limited to the present invention. The present application can be applied to an electronic device 100 such as a mobile phone or a tablet computer, which is not limited in this application.

In the embodiment of the present application, the mobile phone may include components such as a radio frequency circuit, a memory, an input unit, a wireless fidelity (WiFi) module, a display component 10, a sensor, an audio circuit, a processor, a fingerprint recognition component 20, a battery, and the like.

The radio frequency circuit can be used for receiving and transmitting signals during the transmission and reception of information or a call, in particular, after receiving the downlink information of the base station, and processing the data to the processor; and sending the uplink data of the mobile phone to the base station. Generally, radio frequency circuits include, but are not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the RF circuit can communicate with the network and other devices through wireless communication.

The memory can be used to store software programs and modules, and the processor executes various functional applications and data processing of the mobile phone by running software programs and modules stored in the memory. The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application required for at least one function (such as a sound playing function, an image playing function, etc.), and the storage data area may be stored according to the mobile phone. Use the created data (such as audio data, phone book, etc.). Further, the memory may include a high speed random access memory, and may also include a nonvolatile memory such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The input unit can be used to receive input numeric or character information and to generate key signals related to user settings and function controls of the handset. Specifically, the input unit may include a touch panel and other input devices. A touch panel, also referred to as a touch screen, can collect touch operations on or near the user (such as the user using a finger, a stylus, or the like, any suitable object or accessory on or near the touch panel). The corresponding connecting device is driven according to a preset program.

Optionally, the touch panel may include two parts: a touch detection device and a touch controller. Wherein, the touch detection device detects the touch orientation of the user, and detects a signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts the touch information into contact coordinates, and sends the touch information. Give the processor and receive commands from the processor and execute them. In addition, touch panels can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves. In addition to the touch panel, the input unit may also include other input devices. Specifically, other input devices may include, but are not limited to, one or more of a physical keyboard, function keys (such as a volume control button, a switch button, etc.), a trackball, a mouse, a joystick, and the like.

The display component 10 can include a display panel. Alternatively, the display panel can be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like. Further, the touch panel may cover the display panel, and when the touch panel detects a touch operation on or near the touch panel, the touch panel transmits to the processor to determine the type of the touch event, and then the processor is on the display panel according to the type of the touch event. Provide the corresponding visual output.

Audio circuitry, speakers, and microphones provide an audio interface between the user and the handset. The audio circuit can transmit the converted electrical signal of the received audio data to the speaker and convert it into a sound signal output by the speaker; on the other hand, the microphone converts the collected sound signal into an electrical signal, which is received by the audio circuit and converted into audio. The data is then processed by the audio data output processor, sent via a radio frequency circuit to, for example, another handset, or the audio data is output to a memory for further processing.

WiFi is a short-range wireless transmission technology. The mobile phone can help users to send and receive emails, browse web pages and access streaming media through the WiFi module. It provides users with wireless broadband Internet access. However, it can be understood that the WiFi module does not belong to the necessary configuration of the mobile phone, and can be omitted as needed within the scope of not changing the essence of the application.

The processor is the control center of the mobile phone. The processor is mounted on the circuit board assembly, and connects various parts of the entire mobile phone by using various interfaces and lines, by running or executing software programs and/or modules stored in the memory, and calling the storage in the The data in the memory, performing various functions of the mobile phone and processing data, thereby performing overall monitoring of the mobile phone. Optionally, the processor may include one or more processing units; preferably, the processor may integrate an application processor and a modem processor, where the application processor mainly processes an operating system, a user interface, an application, etc., and modulates The demodulation processor primarily handles wireless communications.

The power supply can be connected to the processor logic through the power management system to manage functions such as charging, discharging, and power management through the power management system. Although not shown, the mobile phone may further include a Bluetooth module, a sensor (such as an attitude sensor, a light sensor, and other sensors such as a barometer, a hygrometer, a thermometer, and an infrared sensor), and the like, and details are not described herein.

According to the fingerprint identification component 20 of the embodiment of the present application, the fingerprint recognition component 20 includes a chip 220 and a second flexible circuit board 210.

Specifically, as shown in FIG. 3, the second flexible circuit board 210 includes a connecting section 210a and an extended section 210b. One end of the connecting section 210a is connected to the chip 220, and the extended section 210b is connected to the other end of the connecting section 210a. The connecting section 210a It has a different extension direction than the extension 210b.

It should be noted that, by arranging the second flexible circuit board 210 as the connecting section 210a and the extending section 210b having different extending directions, the second flexible circuit board 210 can be shortened in a certain direction (such as the length direction or display of the display screen 120). The length of the width direction of the screen 120 is such that the second flexible circuit board 210 is concentratedly distributed near the chip 220, thereby facilitating layout optimization of the fingerprint recognition component 20, and reducing the occupied space of the second flexible circuit board 210, thereby enabling fingerprint recognition. The structure of the assembly 20 is more compact and reasonable.

According to the fingerprint recognition component 20 of the embodiment of the present application, by providing the second flexible circuit board 210 as the connection section 210a and the extension section 210b having different extending directions, the second flexible circuit board 210 can be concentrated near the chip 220, reducing The occupied space of the second flexible circuit board 210 makes the structure of the fingerprint recognition component 20 more compact and reasonable. Moreover, the connection between the second flexible circuit board 210 and other circuit boards is facilitated, thereby optimizing the layout of the internal components of the electronic device 100.

According to some embodiments of the present application, the chip 220 may be formed in an elongated shape, and the chip 220 is formed into an elongated shape to facilitate the fabrication of the chip 220, so that the production cost can be reduced. Moreover, setting the chip 220 to an elongated shape can reduce the proportion of the chip 220 along the length direction of the display screen 120, so that the screen ratio of the display assembly 10 can be improved. As shown in FIG. 3, in one example of the present application, the chip 220 may be arranged in an oblong shape, thereby improving the appearance of the fingerprint recognition component 20, and increasing the sensing area of the fingerprint recognition component 20, which is convenient. User's operation.

As shown in FIG. 1 to FIG. 3, it can be understood that the connecting segment 210a is disposed along the length direction of the chip 220, and the connecting segment 210a and the extending portion 210b have different extending directions, which can effectively prevent the second flexible circuit board 210 from being along. The length of one direction is too long, so that the second flexible circuit board 210 is more compact and concentrated distributed in the vicinity of the chip 220, thereby making the structure of the fingerprint recognition component 20 more compact and reasonable.

Further, as shown in FIG. 3, the width of the connection segment 210a is W1, and the width of the chip 220 is W2, which satisfies: W1 ≤ W2. Thereby, the connection between the connection segment 210a and the chip 220 is facilitated, and the stability and reliability of the connection between the second flexible circuit board 210 and the chip 220 can be enhanced.

In other embodiments of the present application, the chip 220 is formed in an elongated shape, and the connecting segment 210 may extend in a length direction perpendicular to the elongated shape. Thereby, the connection of the second flexible circuit board 210 to the chip 220 is facilitated, and the layout of the second flexible circuit board 210 of the fingerprint recognition component 20 is diversified.

According to some embodiments of the present application, the connecting section 210a is perpendicular to the extended section 210b. Thereby, the manufacturing of the second flexible circuit board 210 is facilitated, and the fastening of the connection section 210a to the extension section 210b can be improved. As shown in FIGS. 1-3, the connecting segment 210a extends along the length of the chip 220, the extending portion 210b is perpendicular to the connecting portion 210a, and the extending portion 210b extends in a direction perpendicular to the length of the chip 220.

In some embodiments of the present application, the extension 210b has a second bend 212. As shown in FIGS. 1-3, the junction of the extension 210b and the connection section 210a is formed as a second bent portion 212, thereby facilitating the layout of the second flexible circuit board 210. As shown in FIG. 1 , the chip 220 and the connecting portion 210 a may be embedded between the shielding plate 130 and the display screen 120 , and the second bending portion 212 of the extending portion 210 b is bent to wrap the display screen 120 and the substrate 110 and the substrate 110 . The back fit extends so that the layout of the fingerprint recognition assembly 20 can be made more compact.

According to the electronic device 100 of the embodiment of the present application, the electronic device 100 includes a main board 30, a display assembly 10, and the above-described fingerprint recognition component 20.

Specifically, as shown in FIGS. 1 and 2, the display assembly 10 has a first flexible circuit board 140. Thereby, the first flexible circuit board 140 can be connected to the main board 30 to realize two-way communication between the main board 30 and the display assembly 10. The second flexible circuit board 210 is electrically connected to the first flexible circuit board 140, and one of the first flexible circuit board 140 and the second flexible circuit board 210 is communicatively coupled to the main board 30. The "communication connection" described here may have an electrical connection function or a signal transmission function.

It should be noted that the second flexible circuit board 210 may be first connected to the first flexible circuit board 140 and communicated with the main board 30 through the first flexible circuit board 140; or the first flexible circuit board 140 may be connected first. The second flexible circuit board 210 is connected to the main board 30 via the second flexible circuit board 210. Thereby, the number of connectors on the main board 30 can be reduced, and the length of the first flexible circuit board 140 or the second flexible circuit board 210 can be shortened, thereby saving material usage and saving production costs. Moreover, the layout of the internal circuits of the electronic device 100 is optimized, so that the circuit layout of the electronic device 100 is more reasonable and reliable.

According to the electronic device 100 of the embodiment of the present application, the first flexible circuit board 140 of the display assembly 10 and the second flexible circuit board 210 of the fingerprint recognition component 20 are electrically connected, and the first flexible circuit board 140 and the second flexible circuit board One of the 210s is in communication with the main board 30, whereby the number of connectors on the main board 30 can be reduced, and the length of the first flexible circuit board 140 or the second flexible circuit board 210 can be shortened, thereby saving material usage and saving. Production costs. Moreover, the circuit layout of the electronic device 100 is optimized, the internal circuit layout of the electronic device 100 is more compact and reasonable, and the structural compactness of the electronic device 100 is improved. Moreover, by arranging the second flexible circuit board 210 as the connecting section 210a and the extending section 210b having different extending directions, the second flexible circuit board 210 can be concentrated near the chip 220, thereby making the structure of the fingerprint recognition component 20 more compact. reasonable.

An electronic device 100 according to an embodiment of the present application will be described in detail below with reference to FIGS. 1-4 in a specific embodiment. For convenience of description, a mobile phone is taken as an example for explanation. It is to be understood that the following description is only illustrative, and not restrictive.

As shown in FIGS. 1-4, the electronic device 100 includes a main board 30, a display assembly 10, and a fingerprint recognition component 20.

Wherein, as shown in FIG. 1 and FIG. 2, the display assembly 10 includes a substrate 110, a display screen 120, and a shield 130. The display screen 120 is an LCD display screen. The display screen 120 is attached to the substrate 110. The display screen 120 is connected to the first flexible circuit board 140. The protection board 130 is located on the side of the display screen 120 away from the substrate 110. The protection board 130 and the display screen 120 fits.

As shown in FIG. 1 to FIG. 3, the fingerprint recognition component 20 is embedded in a lower portion of the shield 130 (as shown in FIG. 1 in the up and down direction), and the fingerprint recognition component 20 includes a chip 220 and a second flexible circuit board 210. As shown in FIG. 3, the chip 220 is formed in an oblong shape, the second flexible circuit board 210 is connected to the end portion of the chip 220 in the longitudinal direction, and the second flexible circuit board 210 includes a connecting portion 210a and an extending portion 210b, and the connecting portion 210a One end is connected to the chip 220, and the connecting segment 210a extends along the length direction of the chip 220. The width of the connecting segment 210a is W1, and the width of the chip 220 is W2, W1 ≤ W2. The connecting portion of the extending portion 210b and the connecting portion 210a is formed as a second bent portion 212. The extended portion 210b is bent by the second bent portion 212 and extends along a length direction perpendicular to the chip 220.

As shown in FIG. 1 to FIG. 3, the first flexible circuit board 140 is disposed adjacent to the fingerprint recognition component 20, and the first flexible circuit board 140 has a first bent portion 142, and the first bent portion 142 covers a portion of the side of the substrate 110. The first flexible circuit board 140 is bent over the first bent portion 142 and attached to the surface of the substrate 110 away from the display screen 120.

The second bent portion 212 wraps a portion of the side of the substrate 110. The second flexible circuit board 210 is bent by the second bent portion 212 to be in contact with the first flexible circuit board 140, and the second bent portion 212 is laminated with the first bent portion 142.

The first flexible circuit board 140 is provided with a first BTB connector 141, and the extension 210b of the second flexible circuit board 210 is provided with a second BTB connector 211 adapted to the first BTB connector 141, the first BTB connector The 141 is plugged into the second BTB connector 211. The first flexible circuit board 140 has a third BTB connector 143, the main board 30 is provided with a fourth BTB connector 310, and the third BTB connector 143 is plugged with the fourth BTB connector 310.

It should be noted that, when the electronic device 100 is assembled, the fingerprint recognition component 20 may be embedded in the protection board 130, and the first flexible circuit board 140 drawn from the display screen 120 is bent through the first bending part 142. A bent portion 142 encloses a portion of the substrate 110, and the bent first flexible circuit board 140 is attached to a surface of the substrate 110 remote from the display screen 120. The extension 210b of the second flexible circuit board 210 drawn from the fingerprint recognition component 20 is bent through the second bending portion 212, and the second bending portion 212 is laminated with the first bending portion 142 and wraps a part of the substrate 110 through the second The second flexible circuit board 210 bent by the bent portion 142 is bonded to the bent portion of the first flexible circuit board 140. The second BTB connector 211 of the second flexible circuit board 210 is plugged into the first BTB connector 141 of the first flexible circuit board 140, and finally the third BTB connector 143 on the first flexible circuit board 140 is The fourth BTB connector 310 of the main board 30 is connected, thereby completing the connection assembly of the fingerprint recognition component 20 and the circuit board between the display assembly 10 and the main board 30.

Thus, by embedding the fingerprint recognition component 20 in the display component 10, the footprint of the fingerprint recognition component 20 is reduced, and the screen ratio of the electronic device 100 is increased. Moreover, the first flexible circuit board 140 of the display assembly 10 is electrically connected to the second flexible circuit board 210 of the fingerprint recognition component 20, and one of the first flexible circuit board 140 and the second flexible circuit board 210 is communicatively coupled to the main board 30, thereby The number of connectors on the main board 30 can be reduced, and the length of the first flexible circuit board 140 or the second flexible circuit board 210 can be shortened, thereby saving material usage and saving production costs. Moreover, the circuit layout of the electronic device 100 is optimized, the internal circuit layout of the electronic device 100 is more compact and reasonable, and the structural compactness of the electronic device 100 is improved. Moreover, by arranging the second flexible circuit board 210 as the connecting section 210a and the extending section 210b having different extending directions, the second flexible circuit board 210 can be concentrated near the chip 220, thereby making the structure of the fingerprint recognition component 20 more compact. reasonable.

In the description of the present specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples", etc. Particular features, structures, materials or features described in the examples or examples are included in at least one embodiment or example of the application. In the present specification, the schematic representation of the above terms does not necessarily mean the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

While the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art The scope of the present application is defined by the claims and their equivalents.

Claims (17)

An electronic device, comprising: Motherboard a display assembly having a first flexible circuit board; and a fingerprint recognition component having a second flexible circuit board electrically connected to the first flexible circuit board, the first flexible circuit board and the second flexible circuit board One of the communication connections with the motherboard. The electronic device according to claim 1, wherein said first flexible circuit board is provided with a first BTB connector, and said second flexible circuit board is provided with a first BTB connector a second BTB connector, the first BTB connector being soldered to the second BTB connector. The electronic device according to claim 1 or 2, wherein the first flexible circuit board is provided with a first BTB connector, and the second flexible circuit board is provided to be compatible with the first BTB connector And a second BTB connector, the first BTB connector is plugged into the second BTB connector. The electronic device according to any one of claims 1 to 3, wherein one of the first flexible circuit board and the second flexible circuit board has a third BTB connector, the third BTB The connector is in communication with the motherboard. The electronic device according to claim 4, wherein the main board is provided with a fourth BTB connector, and the third BTB connector is soldered to the fourth BTB connector. The electronic device according to claim 4, wherein the main board is provided with a fourth BTB connector, and the third BTB connector is plugged with the fourth BTB connector. The electronic device according to any one of claims 1 to 6, wherein the display component comprises: Substrate a display screen, the display screen is attached to the substrate, and the first flexible circuit board is communicatively connected to the display screen; and a protective plate, the protective plate is located on a side of the display screen away from the substrate, the protective plate is attached to the display screen, and the fingerprint recognition component is embedded in the protective plate. The electronic device according to claim 7, wherein the first flexible circuit board is disposed adjacent to the fingerprint recognition component, the first flexible circuit board has a first bent portion, and the first bent portion is wrapped Part of the side of the substrate. The electronic device according to claim 8, wherein said second flexible circuit board has a second bent portion that wraps a portion of a side of said substrate. The electronic device according to claim 9, wherein the second bent portion is laminated with the first bent portion. A fingerprint identification component, comprising: Chip; and a second flexible circuit board, the second flexible circuit board including a connecting section and an extension, one end of the connecting section is connected to the chip, and the extending section is connected to the other end of the connecting section, The connecting section has a different direction of extension than the extension. The fingerprint recognition assembly according to claim 11, wherein said chip is formed in an elongated shape, and said connecting portion extends in a length direction of said chip. The fingerprint recognition component according to claim 12, wherein the connection segment has a width W1 and the chip has a width W2 satisfying: W1 ≤ W2. The fingerprint recognition assembly according to claim 11, wherein said chip is formed in an elongated shape, and said connecting portion extends in a length direction perpendicular to said elongated shape. The fingerprint recognition assembly of claim 11 wherein said connecting segment is perpendicular to said extension. The fingerprint recognition assembly of claim 11 wherein said extension has a second bend. An electronic device, comprising: Motherboard a display assembly having a first flexible circuit board; and The fingerprint recognition assembly according to any one of claims 11 to 16, wherein the second flexible circuit board is electrically connected to the first flexible circuit board, the first flexible circuit board and the second flexible circuit board One of them is in communication with the motherboard.

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