CN107492716B - Control method, antenna device and electronic device - Google Patents

Abstract

The present invention discloses a control method, an antenna device and an electronic device, wherein the antenna device comprises a fingerprint module and a circuit board, the fingerprint module comprises a fingerprint recognition chip and a metal decorative part surrounding the fingerprint recognition chip, the circuit board is provided with a matching circuit and a feeding point, the metal decorative part is electrically connected to the feeding point through the matching circuit as a signal carrier, and the fingerprint recognition chip cuts off the electrical connection between the metal decorative part and the feeding point when a touch signal input is detected. The embodiment of the present invention utilizes the metal decorative part on the fingerprint module as a signal carrier, the metal decorative part is used to transmit and receive signals as part of the antenna when the fingerprint module is not working, and the original structure is used to realize the antenna function, improve the compactness of the structure, and save the design cost.

Description

Control method, antenna device and electronic device

technical field

The present invention relates to the technical field of electronic devices, and in particular, to a control method, an antenna device and an electronic device.

Background technique

With the development of communication technology, people use mobile electronic devices such as mobile phones and tablet computers more and more widely in daily life. In particular, the communication function of electronic equipment is used most frequently. The performance of the communication function of the electronic device is determined by its built-in antenna. The current electronic device has the problem of a narrow frequency band. If the frequency band needs to be widened, the number of antennas needs to be increased in the electronic device, but this will increase the design cost of the electronic device. .

SUMMARY OF THE INVENTION

Embodiments of the present invention provide a control method, an antenna device and an electronic device, which can improve the compactness of the structure of the electronic device and save the design cost of the electronic device.

An embodiment of the present invention provides an antenna device, including:

a fingerprint module, the fingerprint module includes a fingerprint identification chip and a metal decorative piece surrounding the fingerprint identification chip;

A circuit board, the circuit board is provided with a matching circuit and a feeding point, the metal decorative piece is electrically connected to the feeding point through the matching circuit to serve as a signal carrier, and the fingerprint identification chip detects a touch signal when the touch signal is detected. When inputting, cut off the electrical connection between the metal decoration and the feeding point.

An embodiment of the present invention further provides an electronic device, including a casing and a display screen fixed with the casing, and the electronic device further includes the above-mentioned antenna device.

The embodiment of the present invention also provides an electronic device, including:

a fingerprint module, the fingerprint module includes a fingerprint identification chip and a metal decorative part;

a circuit board, the circuit board is provided with a matching circuit and a feeding point, wherein the metal decoration is electrically connected to the feeding point through the matching circuit to serve as a signal carrier; and

The control module is used for disconnecting the electrical connection between the metal decorative piece and the circuit board when the fingerprint module receives a touch input signal.

The embodiment of the present invention further provides a control method, which is applied to an electronic device, the electronic device includes a fingerprint module, a circuit board and a control module, the fingerprint module includes a metal decoration, and the metal decoration is connected to the The circuit board is electrically connected to serve as a signal carrier;

The control method includes:

The fingerprint module detects a touch input signal, and performs fingerprint recognition based on the touch input signal;

The control module cuts off the electrical connection between the metal decoration of the fingerprint module and the circuit board when the fingerprint module detects the touch input signal.

The antenna device provided by the embodiment of the present invention includes a fingerprint module and a circuit board, the fingerprint module includes a fingerprint identification chip and a metal decorative piece surrounding the fingerprint identification chip, and the circuit board is provided with a matching circuit and a feeding point , the metal decorative piece is electrically connected to the feeding point through the matching circuit as a signal carrier, and the fingerprint identification chip cuts off the metal decorative piece and the feeding point when the touch signal input is detected electrical connection between them. In the embodiment of the present invention, the metal decorative piece on the fingerprint module is used as a signal carrier, and the metal decorative piece is used to send and receive signals as a part of the antenna when the fingerprint module is not working, and the original structure is used to realize the antenna function and improve the compactness of the structure. , saving design costs.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained from these drawings without creative effort.

FIG. 1 is a schematic structural diagram of an electronic device provided by an embodiment of the present invention.

FIG. 2 is a schematic diagram of a casing of an electronic device provided by an embodiment of the present invention.

FIG. 3 is a schematic diagram of an antenna device provided in an embodiment of the present invention assembled on an electronic device.

FIG. 4 is another schematic diagram of an antenna device provided in an embodiment of the present invention assembled on an electronic device.

FIG. 5 is another schematic structural diagram of an electronic device provided by an embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", " rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc., or The positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it should not be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined as "first", "second" may expressly or implicitly include one or more of said features. In the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; it can be mechanical connection, electrical connection or can communicate with each other; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction of two elements relation. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In the present invention, unless otherwise expressly specified and limited, a first feature "on" or "under" a second feature may include the first and second features in direct contact, or may include the first and second features Not directly but through additional features between them. Also, the first feature being "above", "over" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature is "below", "below" and "below" the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.

The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are only examples and are not intended to limit the invention. Furthermore, the present disclosure may repeat reference numerals and/or reference letters in different instances for the purpose of simplicity and clarity and not in itself indicative of a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

Embodiments of the present invention provide an antenna device and an electronic device. The detailed descriptions will be given below.

In this embodiment, description will be made from the perspective of an antenna device, which may be specifically provided in an electronic device, such as a mobile phone, a tablet computer, a PDA (Personal Digital Assistant), and the like.

Please refer to 1 and FIG. 2 , the electronic device 100 includes a display screen 10 , a circuit board 20 , a middle frame 30 , a back cover 40 , and an antenna device 50 . Although not shown in FIG. 1 and FIG. 2 , the electronic device 100 further includes a battery and a cover.

Wherein, the display screen 10 may include a touch layer and a display layer. Wherein, the touch layer covers the display layer. The touch layer can be used by the user to perform touch operations. The touch layer can be a transparent glass cover plate. In some embodiments, the touch layer may be a glass cover made of a material such as sapphire. The display layer can be a liquid crystal display panel for displaying information input by the user or information provided to the user and various graphical user interfaces of the electronic device, which can be composed of graphics, text, icons, videos and any combination thereof to constitute. The display screen 10 may include a display area 10A and a non-display area 10B. The display area 10A may be used to display the screen of the electronic device 100 or for the user to perform touch manipulation or the like. The top area of the non-display area 10B has openings for sound and light transmission, and the bottom of the non-display area 10B can be provided with functional components such as the antenna device 50 , the fingerprint module 501 , and the touch buttons. It should be noted that, in the embodiment of the present invention, the non-display area 10B may also be provided only on the top of the electronic device 100 or only on the bottom of the electronic device 100 . It should also be noted that, the electronic device 100 in the embodiment of the present invention can also be set in a full screen without reserving a non-display area.

As shown in FIG. 2 , the display screen 10 , the middle frame 30 and the back cover 40 can be combined to form a casing 110 . The casing 110 has a closed space formed by the display screen 10 , the middle frame 30 and the back cover 40 . The circuit board 20. Other components of the electronic device 100 such as the antenna device 50 are installed in the closed space in the housing 110 . It should be noted that the structure of the casing 110 in the embodiment of the present invention is not limited to this, and the casing structure in the embodiment of the present invention may also only include the display screen and the middle frame, or the back cover and the middle frame may be integrally formed as a whole Middle frame structure.

The electronic device 100 may include a casing 110 , a display screen 10 fixed with the casing 110 , and the electronic device 100 further includes an antenna device 50 .

The circuit board 20 is installed inside the housing 110 . The circuit board 20 may be the main board of the electronic device 100 . Functional components such as a fingerprint module, a radio frequency circuit, a camera, a proximity sensor, and a processor can be integrated on the circuit board 20 . Meanwhile, the display screen 10 may be electrically connected to the circuit board 20 .

The middle frame 30 serves as a frame of the electronic device 100 for supporting the entire electronic device 100 . The middle frame can be made of metal material.

Wherein, a through hole 101 is opened on the bottom of the non-display area 10B of the display screen 10, the antenna device 50 is arranged under the through hole 101 at the bottom of the non-display area 10B, and the antenna device 50 may include a fingerprint module 501 and a circuit board 20, and the upper surface of the fingerprint module 501 extends to the outer surface of the display screen 10 through the through hole 101 at the bottom of the non-display area 10B. The upper surface of the fingerprint module 501 can be lower than the outer surface of the display screen 10 , the upper surface of the fingerprint module 501 can also be higher than the outer surface of the display screen 10 , and the upper surface of the fingerprint module 501 can also be connected with the display screen. The outer surface of 10 is on a horizontal plane. The circuit board 20 is disposed below the fingerprint module 501 .

Please refer to FIG. 3 . FIG. 3 is a schematic diagram of an antenna device provided in an embodiment of the present invention assembled on an electronic device. The antenna device 50 may include a fingerprint module 501 and a circuit board 20 .

The fingerprint module 501 may include a fingerprint identification chip 5011 and a metal decoration 5012 surrounding the fingerprint identification chip 5011 . The fingerprint identification chip 5011 is electrically connected to the circuit board 20 through a signal line 5013 to be connected to electronic devices through the circuit board 20 . The processor of the device 100 .

The circuit board 20 is provided with a matching circuit 201 and a feeding point 202 , the metal decoration 5012 on the fingerprint module 501 is electrically connected to the feeding point 202 through the matching circuit 201 to serve as a signal carrier, wherein the metal decoration The electrical connection between the component 5012 , the matching circuit 201 and the feed point is achieved through the feed line 203 .

When the fingerprint identification chip 5011 detects the input of a touch signal, the electrical connection between the metal decorative element 5012 and the feeding point 202 is cut off.

When the fingerprint identification chip 5011 does not detect a touch signal input, the metal decorative part 5012 is used as a signal carrier to send and receive radio frequency signals. When the fingerprint module 501 is not working, the metal decoration 5012 on the fingerprint module 501 is used as a part of the antenna to send and receive radio frequency signals, and the original structure is used to realize the antenna function, improve the compactness of the structure and save the design cost. And the function of sending and receiving signals and the function of fingerprint collection are used in sections without interfering with each other. In addition, a plurality of antennas are generally provided in the electronic device 100, and the metal decoration 5012 in the antenna device 50 is only one of the many antennas. When the fingerprint recognition chip 5011 detects a touch signal input, the metal decoration 5012 is cut off. The electrical connection with the feeding point 202 does not actually affect the sending and receiving signals of the entire electronic device. In practical applications, the touch signal input behavior does not last for a long time, and generally is an intermittent short-term behavior, so the metal decorative element 5012 will serve as a signal carrier for sending and receiving radio frequency signals in most time periods.

Wherein, the matching circuit 201 further includes a capacitor and a resistor, and the frequency band of the radio frequency signal is adjusted by the capacitor and the resistor 201 in the matching circuit.

Wherein, the fingerprint identification chip 5011 is used to collect the user's fingerprint information when the touch signal input is detected.

The fingerprint module 501 is an optical fingerprint module based on an optical principle.

Wherein, the metal decoration piece 5012 is arranged around the fingerprint identification chip 5011, and the metal decoration piece 5012 is one of an oval shape, a circle shape and a rectangle shape.

Please refer to FIG. 4 . FIG. 4 is another schematic diagram of the antenna device according to an embodiment of the present invention assembled on an electronic device. The antenna device 50 also includes a switch module 502 .

The switch module 502 is connected between the metal decoration piece 5012 and the circuit board 20 . When the fingerprint identification chip 5011 detects a touch signal input, the switch module 502 cuts off the space between the metal decoration piece 5012 and the feeding point 202 electrical connection.

When the fingerprint identification chip 5011 does not detect touch signal input, the switch module 502 conducts the electrical connection between the metal decoration 5012 and the feeding point 202, and uses the metal decoration 5012 as a signal carrier to send and receive radio frequency signals.

Wherein, as shown in FIG. 4 , the switch module 502 may be disposed between the metal decorative piece 5012 and the matching circuit 201 . The switch module 502 may also be disposed between the matching circuit 201 and the feeding point 202 .

The switch module 502 may be an intelligent switch or a processor.

That is, the switch module 502 is connected between the metal decoration piece 5012 and the circuit board 20 , and when the fingerprint identification chip 5011 detects the input of a touch signal, the switch module 502 cuts off the metal decoration piece 5012 and the feeding point 202 The fingerprint module 501 enters the fingerprint collection or identification mode; when it is detected that the touch signal input ends, the switch module 502 conducts the electrical power between the metal decorative piece 5012 and the feeding point 202 sexual connection, so that the fingerprint module 501 enters the antenna mode, and transmits and receives radio frequency signals through the metal decorative part 5012.

The antenna device 50 provided by the embodiment of the present invention includes a fingerprint module 501 and a circuit board 20. The fingerprint module 501 includes a fingerprint identification chip 5011 and a metal decoration 5012 surrounding the fingerprint identification chip 5011. The circuit board 20 is provided with matching Circuit 201 and feeding point 202, the metal decoration 5011 is electrically connected to the feeding point 202 through the matching circuit 201 as a signal carrier, the fingerprint identification chip 5011 cuts off the metal decoration when detecting the touch signal input The electrical connection between 5012 and the feed point 202 . In the embodiment of the present invention, the metal decoration piece 5012 on the fingerprint module 501 is used as a signal carrier. The metal decoration piece 5012 is used to send and receive signals as a part of the antenna when the fingerprint module 501 is not working. Compact structure, saving design cost.

Please refer to FIG. 5 , which is another schematic structural diagram of an electronic device according to an embodiment of the present invention. The electronic device 100 includes a fingerprint module 501 , a circuit board 20 and a control module 60 .

The fingerprint module 501 includes a fingerprint identification chip 5011 and a metal decoration 5012 .

The circuit board 20 is provided with a matching circuit 201 and a feeding point 202 , wherein the metal decorative element 5012 is electrically connected to the feeding point 202 through the matching circuit 201 to serve as a signal carrier.

The control module 60 is used for disconnecting the electrical connection between the metal decorative element 5012 and the circuit board 20 when the fingerprint module 501 receives a touch input signal. The control module 60 is used for conducting the electrical connection between the metal decoration piece 5012 and the circuit board 20 when the fingerprint module 501 does not receive a touch input signal, and using the metal decoration piece 5012 as a signal carrier to send and receive radio frequency Signal.

The control module 60 is used for disconnecting the electrical connection between the metal decorative element 5012 and the feeding point 202 when the fingerprint module 501 receives a touch input signal.

Wherein, the control module 60 may be an intelligent switch or a processor.

The electronic device 100 provided by the embodiment of the present invention includes a fingerprint module 501 , a circuit board 20 and a control module 60 , the fingerprint module 501 includes a fingerprint identification chip 5011 and a metal decoration 5012 , and the circuit board 20 is provided with a matching circuit 201 and a control module 60 . The feed point 202, wherein the metal decorative piece 5012 is electrically connected to the feed point 202 through the matching circuit 201 as a signal carrier, and the control module 60 is used for when the fingerprint module 501 receives a touch input signal, Disconnect the electrical connection between the metal decoration 5012 and the circuit board 20 . In the embodiment of the present invention, the metal decoration piece 5012 on the fingerprint module 501 is used as a signal carrier. The metal decoration piece 5012 is used to send and receive signals as a part of the antenna when the fingerprint module 501 is not working. The compact structure of the electronic device 100 saves the design cost of the electronic device 100 .

An embodiment of the present invention further provides a control method, which is applied to an electronic device 100. As shown in FIG. 5, the electronic device 100 includes a fingerprint module 501, a circuit board 20 and a control module 60, and the fingerprint module 501 includes metal decoration component 5012, the metal decorative component 5012 is electrically connected with the circuit board 20 to serve as a signal carrier; the control method includes:

The fingerprint module 501 detects a touch input signal, and performs fingerprint recognition based on the touch input signal;

The control module 60 cuts off the electrical connection between the metal decoration 5012 of the fingerprint module 501 and the circuit board 20 when the fingerprint module 501 detects a touch input signal.

The control module 60 conducts the electrical connection between the metal decorative element 5012 and the circuit board 20 when the fingerprint module 501 does not receive a touch input signal.

The control module 60 may be a processor, and when the fingerprint module 501 detects a touch input signal, the processor 60 cuts off the electrical connection between the metal decoration 5012 of the fingerprint module 501 and the circuit board 20 .

In this embodiment of the present invention, the fingerprint module 501 detects a touch input signal, and performs fingerprint recognition based on the touch input signal. The control module 60 cuts off the fingerprint module 501 when the fingerprint module 501 detects the touch input signal. Electrical connection between the metal decorative element 5012 and the circuit board 20 . In the embodiment of the present invention, the metal decoration piece 5012 on the fingerprint module 501 is used as a signal carrier. The metal decoration piece 5012 is used to send and receive signals as a part of the antenna when the fingerprint module 501 is not working. The compact structure of the electronic device 100 saves the design cost of the electronic device 100 .

Those skilled in the art can understand that the structures of the electronic device 100 shown in FIGS. 1 , 2 and 5 do not constitute a limitation on the electronic device 100 . The electronic device 100 may include more or fewer components than shown, or some combination of components, or a different arrangement of components. The electronic device 100 may further include a processor, a memory, a radio frequency circuit, an audio circuit, a Bluetooth module, a Wi-Fi module, and the like, which will not be repeated here.

The control method, the antenna device, and the electronic device provided by the embodiments of the present invention are described above in detail. The principles and implementations of the present invention are described in this paper by using specific examples. The descriptions of the above embodiments are only used to help understand the present invention. . At the same time, for those skilled in the art, according to the idea of the present invention, there will be changes in the specific embodiments and application scope. To sum up, the content of this specification should not be construed as a limitation of the present invention.

Claims (8)

1. An antenna device comprising: a fingerprint module, the fingerprint module includes a fingerprint identification chip and a metal decorative piece surrounding the fingerprint identification chip; A circuit board, wherein the circuit board is provided with a matching circuit and a feeding point, wherein the metal decoration is electrically connected to the feeding point through the matching circuit to serve as a signal carrier; The antenna device further includes a switch module, the switch module is connected between the metal decoration and the circuit board; When the fingerprint identification chip detects the input of a touch signal, the switch module cuts off the electrical connection between the metal decorative piece and the feeding point, so as to collect the user's fingerprint information, and the fingerprint identification chip is in When no touch signal input is detected, the switch module conducts the electrical connection between the metal decoration and the feeding point, so that the metal decoration can send and receive radio frequency signals. 2 . The antenna device of claim 1 , wherein the fingerprint module is an optical fingerprint module based on an optical principle. 3 . 3 . The antenna device according to claim 1 , wherein the metal decoration is disposed around the fingerprint identification chip, and the metal decoration is one of oval, circular, and rectangular. 4 . 4 . An electronic device, comprising a casing and a display screen fixed to the casing, wherein the electronic device further comprises the antenna device according to any one of claims 1 to 3 . 5. An electronic device, characterized in that, comprising: a fingerprint module, the fingerprint module includes a fingerprint identification chip and a metal decorative part; a circuit board, the circuit board is provided with a matching circuit and a feeding point, wherein the metal decoration is electrically connected to the feeding point through the matching circuit to serve as a signal carrier; and A control module, which is used for disconnecting the electrical connection between the metal decorative piece and the circuit board when the fingerprint module receives a touch input signal, so as to collect the user's fingerprint information, and When the fingerprint module does not receive a touch input signal, the electrical connection between the metal decoration piece and the feeding point is conducted, so that the metal decoration piece can send and receive radio frequency signals. 6. The electronic device according to claim 5, wherein the control module is an intelligent switch or a processor. 7. A control method, applied in electronic equipment, characterized in that the electronic equipment comprises a fingerprint module, a circuit board and a control module, the fingerprint module comprises a metal decorative piece, the metal decorative piece and the The feeding point of the circuit board is electrically connected to serve as a signal carrier; The control method includes: The fingerprint module detects a touch input signal, and performs fingerprint recognition based on the touch input signal; When the fingerprint module detects a touch input signal, the control module cuts off the electrical connection between the metal decorative piece of the fingerprint module and the feeding point, so as to collect the user's fingerprint information, and the When the fingerprint module does not receive the touch input signal, it conducts the electrical connection between the metal decoration and the feeding point, so that the metal decoration can send and receive radio frequency signals. 8 . The control method according to claim 7 , wherein the control module is a processor, and the method comprises: when the fingerprint module detects a touch input signal, the processor cuts off the fingerprint module. 9 . Electrical connection between the metal decorative parts of the group and the circuit board.

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