CN107492716A - Control method, antenna device and electronic device - Google Patents

Abstract

The invention discloses a control method, an antenna device and electronic equipment, wherein the antenna device comprises a fingerprint module and a circuit board, the fingerprint module comprises a fingerprint identification chip and a metal decoration surrounding the fingerprint identification chip, the circuit board is provided with a matching circuit and a feed point, the metal decoration is electrically connected to the feed point through the matching circuit to serve as a signal carrier, and when the fingerprint identification chip detects that a touch signal is input, the electrical connection between the metal decoration and the feed point is cut off. The embodiment of the invention utilizes the metal decoration on the fingerprint module as the signal carrier, the metal decoration is used as a part of the antenna for receiving and transmitting signals during the non-working period of the fingerprint module, the original structure is utilized to realize the function of the antenna, the structure compactness is improved, and the design cost is saved.

Description

Control method, antenna device and electronic device

technical field

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

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 their daily life. In particular, the communication function of electronic equipment is used most frequently. The performance of the communication function of electronic equipment is determined by its built-in antenna. The current electronic equipment has a problem of narrow frequency band. If the frequency band needs to be widened, the number of antennas needs to be increased in the electronic equipment, but this will increase the design cost of the electronic equipment. .

Contents of the invention

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

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 decoration surrounding the fingerprint identification chip;

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

An embodiment of the present invention also provides an electronic device, which includes a casing and a display screen cooperating and 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 decoration;

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 as a signal carrier; and

A control module, the control module is used for disconnecting the electrical connection between the metal decoration and the circuit board when the fingerprint module receives a touch input signal.

The embodiment of the present invention also 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 as a signal carrier;

The control methods include:

The fingerprint module detects a touch input signal, and performs fingerprint identification 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 a 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 recognition chip and a metal decoration surrounding the fingerprint recognition chip, and the circuit board is provided with a matching circuit and a feed point , the metal decoration part is electrically connected to the feed point through the matching circuit as a signal carrier, and the fingerprint recognition chip cuts off the metal decoration part and the feed point when detecting a touch signal input electrical connection between. In the embodiment of the present invention, the metal decoration on the fingerprint module is used as a signal carrier. The metal decoration is used as a part of the antenna to send and receive signals 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 cost.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the 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 based on these drawings without any 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 by an embodiment of the present invention assembled on an electronic device.

FIG. 4 is another schematic diagram of an antenna device provided by 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 description

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

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the 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 limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of said features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected, or electrically connected, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediary, and it can be the internal communication of two components or the interaction of two components relation. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In the present invention, unless otherwise clearly specified and limited, a first feature being "on" or "under" a second feature may include direct contact between the first and second features, and may also include the first and second features Not in direct contact but through another characteristic contact between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "beneath" and "under" the first feature to the second feature include that the first feature is directly below and obliquely 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. To simplify the disclosure of the present invention, 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, such repetition is for simplicity and clarity and does not in itself indicate a relationship between the various embodiments and/or arrangements discussed. In addition, various specific process and material examples are provided herein, but one of ordinary skill in the art may recognize the use of other processes and/or the use of other materials.

Embodiments of the present invention provide an antenna device and electronic equipment. The details will be described respectively below.

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

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

Wherein, the display screen 10 may include a touch layer and a display layer. Wherein, the touch layer is covered on the display layer. The touch layer can be used for users to perform touch operations. The touch layer can be a transparent glass cover. In some embodiments, the touch layer can be a glass cover made of materials such as sapphire. The display layer can be a liquid crystal display panel, which is used to display the information input by the user or provided to the user and various graphical user interfaces of the electronic equipment. These graphical user interfaces can be composed of graphics, text, icons, videos and any combination thereof to form. The display screen 10 may include a display area 10A and a non-display area 10B. The display area 10A can be used for displaying the screen of the electronic device 100 or for the user to perform touch manipulation and the like. The top area of the non-display area 10B is provided with openings for sound and light transmission, and the bottom of the non-display area 10B can be provided with functional components such as an antenna device 50 , a fingerprint module 501 , and 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 may also be set in 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 housing 110. The housing 110 has a closed space formed by the display screen 10, the middle frame 30 and the back cover 40, and the circuit board 20. Other components of the electronic device 100 such as the antenna device 50 are installed in the enclosed space in the casing 110 . It should be noted that the structure of the housing 110 in the embodiment of the present invention is not limited thereto, the housing structure in the embodiment of the present invention may also include only the display screen and the middle frame, or the rear cover and the middle frame may be integrated into a whole Middle frame structure.

Wherein, the electronic device 100 may include a casing 110 , and a display screen 10 cooperating and 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 a 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 and is used to support 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, and the antenna device 50 is arranged under the through hole 101 at the bottom of the non-display area 10B. 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, the upper surface of the fingerprint module 501 can also be connected to the display screen The outer surface of 10 is on a horizontal plane. The circuit board 20 is disposed under the fingerprint module 501 .

Please refer to FIG. 3 . FIG. 3 is a schematic diagram of an antenna device provided by 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 recognition chip 5011 and a metal decoration 5012 surrounding the fingerprint recognition chip 5011. The fingerprint recognition chip 5011 is electrically connected to the circuit board 20 through a signal line 5013, so as to be connected to the electronic circuit board 20 through the circuit board 20. A processor of device 100.

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

When the fingerprint recognition chip 5011 detects a touch signal input, it cuts off the electrical connection between the metal decoration 5012 and the feeding point 202 .

When the fingerprint recognition chip 5011 detects no touch signal input, the metal decoration 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, which improves the compactness of the structure and saves 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, multiple antennas are generally installed in the electronic device 100, and the metal decoration 5012 in the antenna device 50 is only used as 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 will not have a practical impact on 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 is generally an intermittent short-term behavior, so the metal decoration 5012 will serve as a signal carrier to send and receive 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 through the capacitor and the resistor of the matching circuit 201 .

Wherein, the fingerprint recognition chip 5011 is used to collect user fingerprint information when a touch signal input is detected.

Wherein, the fingerprint module 501 is an optical fingerprint module based on optical principles.

Wherein, the metal decoration 5012 is arranged around the fingerprint recognition chip 5011, and the metal decoration 5012 is one of ellipse, circle and rectangle.

Please refer to FIG. 4 . FIG. 4 is another schematic view of an antenna device provided by 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 5012 and the circuit board 20, and when the fingerprint recognition chip 5011 detects a touch signal input, the switch module 502 cuts off the connection between the metal decoration 5012 and the feed point 202 electrical connection.

When the fingerprint identification chip 5011 does not detect a 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 decoration 5012 and the matching circuit 201 . The switch module 502 can also be arranged between the matching circuit 201 and the feeding point 202 .

Wherein, the switch module 502 may be an intelligent switch or a processor.

That is, the switch module 502 is connected between the metal decoration 5012 and the circuit board 20, and when the fingerprint recognition chip 5011 detects a touch signal input, the switch module 502 cuts off the metal decoration 5012 and the feed point 202. The electrical connection between, so that the fingerprint module 501 enters the fingerprint collection or identification mode; when it detects that the touch signal input ends, the switch module 502 conducts the electrical connection between the metal decoration 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 decoration 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 feed point 202, the metal decoration 5011 is electrically connected to the feed point 202 through the matching circuit 201 as a signal carrier, and the fingerprint recognition chip 5011 cuts off the metal decoration when a touch signal input is detected 5012 and the electrical connection between the feeding point 202. In the embodiment of the present invention, the metal decoration 5012 on the fingerprint module 501 is used as a signal carrier. The metal decoration 5012 is used as a part of the antenna to send and receive signals when the fingerprint module 501 is not working, and the original structure is used to realize the antenna function and improve Compact structure, saving design cost.

Please refer to FIG. 5 . FIG. 5 is another schematic structural diagram of an electronic device provided by 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 recognition chip 5011 and a metal decoration 5012 .

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

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

Wherein, the control module 60 is used for disconnecting the electrical connection between the metal decoration 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. The circuit board 20 is provided with a matching circuit 201 and The feed point 202, wherein the metal decoration 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 to, 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 5012 on the fingerprint module 501 is used as a signal carrier. The metal decoration 5012 is used as a part of the antenna to send and receive signals when the fingerprint module 501 is not working, and the original structure is used to realize the antenna function and improve The compact structure of the electronic device 100 saves the design cost of the electronic device 100 .

The embodiment of the present invention also 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. 5012, the metal decoration 5012 is electrically connected to the circuit board 20 as a signal carrier; the control method includes:

The fingerprint module 501 detects a touch input signal, and performs fingerprint identification 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 decoration 5012 and the circuit board 20 when the fingerprint module 501 does not receive a touch input signal.

Wherein, the control module 60 may be a processor. 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 the embodiment of the present invention, the fingerprint module 501 detects the touch input signal, and performs fingerprint identification based on the touch input signal. When the fingerprint module 501 detects the touch input signal, the control module 60 cuts off the The electrical connection between the metal decoration 5012 and the circuit board 20 . In the embodiment of the present invention, the metal decoration 5012 on the fingerprint module 501 is used as a signal carrier. The metal decoration 5012 is used as a part of the antenna to send and receive signals when the fingerprint module 501 is not working, and the original structure is used to realize the antenna function and improve 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 structure of the electronic device 100 shown in FIG. 1 , FIG. 2 and FIG. 5 does not limit the electronic device 100 . Electronic device 100 may include more or fewer components than shown, or combine certain components, or have a different arrangement of components. The electronic device 100 may also include a processor, a memory, a radio frequency circuit, an audio circuit, a bluetooth module, a wireless fidelity module, etc., which will not be repeated here.

The control method, antenna device and electronic equipment provided by the embodiments of the present invention are described above in detail. In this paper, specific examples are used to illustrate the principle and implementation of the present invention. The description of the above embodiments is 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 implementation and application scope. In summary, the content of this specification should not be construed as limiting the present invention.

Claims (10)

1. An antenna device comprising: A fingerprint module, the fingerprint module includes a fingerprint identification chip and a metal decoration surrounding the fingerprint identification chip; A circuit board, the circuit board is provided with a matching circuit and a feed point, characterized in that the metal decoration is electrically connected to the feed point through the matching circuit as a signal carrier, and the fingerprint recognition chip is When the touch signal input is detected, the electrical connection between the metal decoration part and the feeding point is cut off. 2 . The antenna device according to claim 1 , wherein the fingerprint recognition chip is used to collect user fingerprint information when a touch signal is detected. 3 . 3. The antenna device according to claim 1, characterized in that it comprises a switch module, the switch module is connected between the metal decoration and the circuit board, and the fingerprint identification chip detects the touch signal When inputting, the switch module cuts off the electrical connection between the metal decoration and the feeding point. 4. The antenna device according to claim 1, wherein the fingerprint module is an optical fingerprint module based on an optical principle. 5 . The antenna device according to claim 1 , wherein the metal decoration is arranged around the fingerprint recognition chip, and the metal decoration is one of ellipse, circle and rectangle. 6 . 6. An electronic device, comprising a housing, and a display screen cooperating with the housing, characterized in that the electronic device further comprises the antenna device according to any one of claims 1-4. 7. An electronic device, characterized in that it comprises: A fingerprint module, the fingerprint module includes a fingerprint identification chip and a metal decoration; 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 as a signal carrier; and A control module, the control module is used for disconnecting the electrical connection between the metal decoration and the circuit board when the fingerprint module receives a touch input signal. 8. The electronic device according to claim 6, wherein the control module is an intelligent switch or a processor. 9. A control method, which is applied to an electronic device, wherein 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 as a signal carrier; The control methods include: The fingerprint module detects a touch input signal, and performs fingerprint identification 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 a touch input signal. 10. The control method according to claim 9, 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. The electrical connection between the metal decoration part of the set and the circuit board.