TWI557648B - Fingerprint sensing device - Google Patents

Description

Fingerprint sensing function device

The present invention relates to the field of fingerprint detection technology, and more particularly to a device for fingerprint sensing function.

At present, devices, such as display electronic devices, generally need to perform corresponding encryption operations on the device in order to ensure the security of information usage, and the device needs to perform corresponding decryption during use.

The traditional encryption method is generally to set the digital start password, and the digital password confirmation is needed during the startup or use to ensure the information security of the device. However, digital passwords are easily stolen or cracked, and the device is less secure to use.

In order to solve the above technical problem, the present invention provides a device for fingerprint sensing function, which determines whether to perform a set function according to fingerprint detection information, and has high security with respect to conventional digital encryption.

To achieve the above object, the present invention provides the following technical solutions:

A device for fingerprint sensing function, the device comprising:

Control button

a fingerprint sensor for sensing a fingerprint input of a predetermined area of the surface of the device, wherein the predetermined area is a fingerprint sensing area, and the fingerprint sensing area is adjacent to an area where the control button is located, so that The fingerprint sensing area can be touched by the same finger when the control button is pressed;

a fingerprint sensing circuit is connected to the fingerprint sensor, the fingerprint sensing circuit provides a fingerprint sensing signal for the fingerprint sensor to control the fingerprint sensor to perform fingerprint sensing, and obtain the Fingerprint sensing information of the fingerprint sensor;

The control module is connected to the fingerprint sensing circuit, and the control module is configured to control the device to perform a setting function.

Preferably, in the above device, the control module is configured to determine, according to the fingerprint sensing information, whether to control the device to perform a setting function.

Preferably, in the above device, the fingerprint sensing area does not overlap with the control button.

Preferably, in the above device, the control button is a mechanical button or a touch button.

Preferably, in the above device, when the control button is a mechanical button, the control button is pressed first, the fingerprint sensing area is touched to perform fingerprint detection; and when the control button is a touch button The control button is simultaneously pressed with the fingerprint sensing area to perform fingerprint detection.

Preferably, in the above device, the control button is at least one of a power button, a volume button, and a return button for multiplexing the device; or the control button is only used to control the fingerprint sensing circuit. A fingerprint sensing signal is provided to the control button of the fingerprint sensor.

Preferably, in the above device, the fingerprint sensor is a fingerprint sensing electrode that is capacitively coupled to a user's finger.

Preferably, in the above device, the fingerprint sensing circuit is connected to the fingerprint sensing electrode, and the fingerprint sensing circuit controls the fingerprint feeling by providing a self-capacitance fingerprint sensing signal for the fingerprint sensing electrode. The measuring electrode performs self-capacitance detection to obtain the fingerprint sensing information, or the fingerprint sensing circuit controls the fingerprint sensing electrode to perform mutual capacitance detection by providing a mutual capacitance fingerprint sensing signal for the fingerprint sensing electrode. And obtaining the fingerprint sensing information.

Preferably, in the above device, the device is an electronic device.

Preferably, in the above apparatus, the electronic device includes a display panel for displaying a screen, and an area defining the display screen of the display panel is a display area, and defining a peripheral area of the electronic device around the display area as a border area The control button and the fingerprint sensor are disposed in the frame area.

Preferably, in the above device, the display panel is a liquid crystal display panel.

Preferably, in the above device, the electronic device is a mobile phone or a tablet computer.

Preferably, in the above device, the fingerprint sensing area is either around the control button or at least one side of the control button.

Preferably, in the above device, the setting function is at least one of a fingerprint payment, a fingerprint unlocking, and a fingerprint scrolling navigation.

Preferably, in the above device, the control button is pressed to trigger the fingerprint sensing circuit to provide the fingerprint sensing signal to the fingerprint sensor.

Preferably, in the above device, when the device is in a preset state, the control button is pressed to trigger the fingerprint sensing circuit to provide the fingerprint sensing signal to the fingerprint sensor, wherein The preset state includes the lock screen state, unlocking and running the payment application state, unlocking and running the page view application state.

Preferably, in the above device, the device further includes an application module for performing a setting function, the application module triggering the fingerprint sensing circuit to provide the fingerprint sensing signal to the fingerprint sensor.

Preferably, in the above device, the control button is defined as a button area in a surface area of the device, and the button area is disposed adjacent to the fingerprint sensing area, wherein the button area and the fingerprint sensing The sum of the areas of the area is no more than 2 square centimeters.

Preferably, in the above device, the sum of the area of the button area and the fingerprint sensing area is no more than 1.5 square centimeters or 1 square centimeter.

Preferably, in the above device, when the control module determines that the fingerprint sensing information is correct fingerprint information, the fingerprint sensing circuit is controlled to stop providing the fingerprint sensing signal to the fingerprint feeling. Detector.

Preferably, in the above device, when the control module determines that the fingerprint sensing information is correct fingerprint information, the fingerprint sensing circuit is controlled to stop providing the fingerprint sensing signal to the fingerprint feeling. Detector.

a control area, the control area is a continuous area, located on the surface of the device, and the area of the control area is not more than 2 square centimeters;

a control button for receiving a finger pressing operation of the user in a first predetermined area on the surface of the device, and defining the first predetermined area as a button area;

a fingerprint sensor for sensing a fingerprint input of a second predetermined area of the device surface, wherein the second predetermined area is a fingerprint sensing area, and the fingerprint sensing area is adjacent to the button area, wherein the fingerprint sensing area is adjacent to the button area, wherein the fingerprint sensing area is adjacent to the button area, wherein the fingerprint sensing area is adjacent to the button area, where The fingerprint sensing area and the button area fall into the control area;

a fingerprint sensing circuit is connected to the fingerprint sensor, the fingerprint sensing circuit provides a fingerprint sensing signal for the fingerprint sensor to control the fingerprint sensor to perform fingerprint sensing, and obtain the Fingerprint sensing information of the fingerprint sensor;

The control module is connected to the fingerprint sensing circuit, and the control module is configured to control the device to perform a setting function.

Preferably, in the above device, the control module is configured to determine, according to the fingerprint sensing information, whether to control the device to perform a setting function.

Preferably, in the above device, the fingerprint sensing area does not overlap with the button area.

Preferably, in the above device, the area of the control zone is no more than 1.5 square centimeters or 1 square centimeter.

Preferably, in the above device, the device comprises a display area for displaying a picture and a frame area located around the display area, the frame area is non-transparent, and the control area is located in the frame area.

As can be seen from the above technical solution, the device provided by the present invention includes: a control button; a fingerprint sensor for sensing a fingerprint input of a predetermined area of the surface of the device, and defining the predetermined area as a fingerprint sensing area, The fingerprint sensing area is adjacent to an area where the control button is located, such that when the control button is pressed, the fingerprint sensing area can be touched by the same finger; a fingerprint sensing circuit is connected to the fingerprint sensor The fingerprint sensing circuit provides a fingerprint sensing signal for the fingerprint sensor to control the fingerprint sensor to perform fingerprint sensing, and acquire fingerprint sensing information of the fingerprint sensor; the control module And connecting to the fingerprint sensing circuit, the control module is configured to determine, according to the fingerprint sensing information, whether to control the device to perform a setting function.

The device of the present invention determines whether to perform the set function according to the fingerprint sensing information, and has high security compared to the conventional digital encryption. In addition, the fingerprint sensing area of the device and the control button can be touched by the same finger. When the control button is operated to perform the setting function, if fingerprint detection is required, the control button can be triggered by the The fingerprint sensing area performs fingerprint sensing, so that the fingerprint sensing and the control button triggering are performed simultaneously, the operation is simple, and the operation efficiency is improved.

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The embodiment of the present application provides a device for fingerprint sensing function, where the device includes: a control button, a fingerprint sensor, a fingerprint sensing circuit, and a control module.

The control button can be a mechanical button or a touch button (or "virtual button"). The control button may multiplex at least one of an existing button such as a power button, a volume button, and a return button (or “Home” button) of the device, or the control button may be added to the device. a button for controlling the fingerprint sensing circuit to provide a fingerprint sensing signal to the fingerprint sensor, and further, if it is a new button, the control button may be used only to control the fingerprint sensing The circuit provides a fingerprint sensing signal to the fingerprint sensor.

The fingerprint sensor is configured to sense a fingerprint input of a predetermined area on a surface of the device. In this embodiment, the predetermined area is defined as a fingerprint sensing area, and the fingerprint sensing area is adjacent to the control button. The area in which the fingerprint sensing area can be touched by the same finger when the control button is pressed.

The fingerprint sensor can be a fingerprint sensing electrode that can be capacitively coupled to a user's finger. The fingerprint sensing circuit is connected to the fingerprint sensing electrode, and the fingerprint sensing circuit controls the fingerprint sensing electrode to perform self-capacitance detection by providing a self-capacitance fingerprint sensing signal for the fingerprint sensing electrode. Obtaining the fingerprint sensing information, or the fingerprint sensing circuit is configured to provide a mutual capacitance fingerprint sensing signal for the fingerprint sensing electrode, and control the texture sensing electrode to perform mutual capacitance detection to obtain the fingerprint sensing News.

The device surface of the present application includes a control area having an area of no more than 2 square centimeters. Preferably, the area of the control area is no more than 1.5 square centimeters or 1 square centimeter. The control button is configured to receive a pressing operation of a first predetermined area of the device surface by the user, and define the first predetermined area as a button area; the fingerprint sensing area is a second predetermined area. The button area and the fingerprint sensing area fall within the control area, and the control area is a continuous area. Wherein, when the control button is a mechanical button, the surface area of the control button is a first predetermined area.

In this embodiment, the fingerprint sensing area does not overlap with the control button, so that the control button is set in an independent button area, and the fingerprint sensor is disposed in an independent fingerprint sensing area, thereby facilitating the The production of the device.

When the control button is a mechanical button, it is preferable to set a surface of the control button higher than a surface of the fingerprint sensing region, so that the control button is pressed first, and the fingerprint sensing region is touched.

When the control button is a touch button, the surface of the control button may be disposed on the same plane as the surface of the fingerprint sensing region, such that the control button and the fingerprint sensing region are simultaneously pressed.

The fingerprint sensing circuit is connected to the fingerprint sensor, and the fingerprint sensing circuit provides a fingerprint sensing signal for the fingerprint sensor to control the fingerprint sensor to perform fingerprint sensing and acquire Fingerprint sensing information of the fingerprint sensor.

The control module is connected to the fingerprint sensing circuit, and configured to determine, according to the fingerprint sensing information, whether to control the device to perform a setting function. The setting function may be at least one of fingerprint payment, fingerprint unlocking, and fingerprint flip navigation. The fingerprint flip navigation is, for example, a pull-up and pull-down, page turning, etc. operation when browsing a webpage or an e-book.

Preferably, the control button is pressed to trigger the fingerprint sensing circuit to provide a fingerprint sensing signal to the fingerprint sensor. For example, when performing fingerprint payment, the payment application (APP) runs to the interface for the user to input the fingerprint. At this time, the user presses the control button to trigger the function of performing fingerprint sensing, and can be simultaneously executed during the process of pressing the control button. Fingerprint sensing, which saves power and is easy to operate. Further, when the control module confirms that the input fingerprint sensing information is correct, the payment application is controlled to perform a final payment operation, and after the payment is ended, the fingerprint sensing circuit is controlled to stop providing the fingerprint sensing signal to the fingerprint sense. The detector ends the current fingerprint operation.

When the fingerprint browsing navigation is performed, the page browsing application opens a reading file, such as a webpage or an e-book. At this time, the user presses a control button to trigger a function of performing fingerprint sensing, and the user's finger slides the fingerprint sensing area up and down. The control module controls operations such as pulling up or pulling down the page according to the up and down sliding of the user's finger. Further, after the user closes the page browsing application, the control module controls the fingerprint sensing circuit to stop providing the fingerprint sensing signal to the fingerprint sensor, and ends the current fingerprint operation. It should be noted that, when performing fingerprint flip navigation, it is preferable not to verify the fingerprint, but it is also possible to select the verification fingerprint.

When the device is in the lock screen state, the user presses the control button to trigger the fingerprint sensing, and when the control module confirms that the fingerprint sensing information is correct, the device is correspondingly controlled to decode the screen, and controls the The fingerprint sensing circuit stops providing the fingerprint sensing signal to the fingerprint sensor, and ends the current fingerprint operation.

It should be noted that if the above control button is an existing button such as a power button for multiplexing the device, it is necessary to further control the multiplexed button to be executed in various ways by a combination of software, hardware, and even software and hardware. The function under the state. For example, by setting, when the device is in one of preset states, the control button is pressed to trigger the fingerprint sensing circuit to provide the fingerprint sensing signal to the fingerprint sensor, wherein the pre- Set the status to include lock screen status, unlock and run the payment application status, unlock and run the page to view the application status.

If the above control button is a new button, the corresponding function of triggering fingerprint sensing is relatively simple.

In addition, in addition to the control button being triggered to perform a fingerprint sensing function, the application module that performs the setting function by the device may also trigger the execution of the fingerprint sensing function. The application module is a module provided with a corresponding application.

The device in this embodiment determines whether to perform the set function according to the fingerprint sensing information, and has high security compared to the conventional digital encryption. Moreover, the fingerprint sensing area of the device and the touch button can be touched by the same finger. When the control button is operated to start the setting function, if fingerprint detection is required, the control button can be triggered while the control button is triggered. The fingerprint sensing area performs fingerprint sensing, so that the fingerprint sensing and the button triggering are performed simultaneously, the operation is simple, and the operation efficiency is improved.

Referring to FIG. 1 , FIG. 1 is a schematic structural diagram of an apparatus for a fingerprint sensing function according to an embodiment of the present application. The apparatus 100 includes a control button 2 and a fingerprint sensing area 1 surrounding the control button 2 . The control button 2 and the fingerprint sensing area 1 can be pressed by the same finger.

The fingerprint sensing area 1 is provided with a fingerprint sensor 10 . In the embodiment shown in FIG. 1, the fingerprint sensor 10 includes a plurality of fingerprint sensing electrodes 11 that can be capacitively coupled to a user's finger. The fingerprint sensing circuit 10 is connected to the fingerprint sensor 10 to provide a self-capacitance fingerprint sensing signal, and the fingerprint sensing electrode 11 is controlled to perform self-capacitance detection to obtain the fingerprint. Sensing information, or the fingerprint sensing circuit 3 controls the fingerprint sensing electrode 11 to perform mutual capacitance detection by providing a mutual capacitance fingerprint sensing signal for the fingerprint sensing electrode 11 to obtain the fingerprint sensing information. .

The device 100 further includes a control module 4 connected to the fingerprint sensing circuit 3, and the control module 4 is configured to control the device 100 to perform a setting function. Further, the control module 4 is configured to determine, according to the fingerprint sensing information, whether to control the device 100 to perform a corresponding function. The control module 4 can be a single chip, or disposed in the chip where the fingerprint sensing circuit 3 is located, or disposed in a controller (MCU) of the device 100, and the control module 4 or A hardware circuit, or a software application, or a combination of hardware and software.

In the embodiment shown in FIG. 1 , the pressing surface of the control button 2 is set to be the same as the surface of the control button 2 , and the fingerprint sensing area 1 is disposed to surround the control button 2 , wherein the The area of the control area can be set as needed.

The fingerprint sensing area 1 can also be disposed on at least one side of the control button 2, as shown in FIG. 2, the fingerprint sensing area 1 can be disposed on one side of the control button 2, such as It is also possible to provide the fingerprint sensing area 1 on both sides of the control button 2 as shown in FIG. In other embodiments, the fingerprint sensing area 1 may also be disposed on three sides of the control button 2.

In the embodiment shown in Figures 1 to 3, the control button 2 is rectangular. In a specific application, the shape of the control button 2 and the fingerprint sensing area 1 may be designed according to a specific application, and the control button 2 may be set to be circular. For example, when the fingerprint sensing area 1 surrounds the control button 2, as shown in FIG. 4, the control button 2 may be set to a circular shape, and the fingerprint sensing area may be set to a circular shape. In summary, the shape of the control button 2 and the fingerprint sensing area 1 includes, but is not limited to, the embodiment as shown in FIGS. 1-4.

The device 100 in this embodiment may be an electronic device 200. Referring to FIG. 5, the electronic device 200 includes a display panel 300 for displaying a picture. The display panel 300 can be a liquid crystal display panel. The display panel 300 includes a display area 52 and a bezel area 51. The display area 52 is an area for the display panel 300 to display a screen, and the border area 51 is a peripheral area surrounding the display area 52. The control button 2 and the fingerprint sensor 10 are disposed in the frame area 51. The frame area 51 includes, in addition to the portion of the front surface of the electronic device 200 surrounding the display area 52, each side (not labeled) and the back side (indicated) of the electronic device 200, in other words, the electronic device. The embodiment shown in FIG. 4 adopts a fingerprint sensing area 1 in which the fingerprint sensor 10 is located to surround the control button 2 .

In the embodiment of the present application, the electronic device 200 may be an electronic product such as a mobile phone, a tablet computer, or a smart watch.

In the device 100 of the present application, the fingerprint sensing circuit 3 can provide the fingerprint sensing signal to the fingerprint sensor 10 when the control button 2 is pressed. In this way, when the touch control button 2 is touched and any function corresponding to the control button 2 is activated, the fingerprint sensor 10 performs fingerprint sensing to determine whether the fingerprint input is correct, and then determines whether to activate. The setting function. In this case, the fingerprint sensing circuit 3 continuously supplies the fingerprint sensor 10 with a fingerprint sensing signal. When the control button 2 is triggered, the fingerprint sensor 10 performs fingerprint sensing. When the arbitrary function corresponding to the control button 2 is activated, the fingerprint sensor 10 performs fingerprint sensing, and determines whether to perform the function according to the fingerprint sensing result.

The fingerprint sensing circuit 3 may further provide the fingerprint sensing signal to the fingerprint sensor 10 when the device 100 receives the trigger signal of the setting function. The setting function is a part of the function corresponding to the function of the control button 2, that is, the fingerprint sensing circuit 3 provides fingerprint sensing to the fingerprint sensor 10 only when the setting function is triggered by the control button. The fingerprint is detected by the signal, and when the control button 2 is not activated, the fingerprint sensing signal is not provided to the fingerprint sensor 10. For the return button of the current smart phone, the function of the device 100, returning to the main interface, etc. can be awakened by the return key. In the present invention, the control device 100 can perform fingerprint unlocking while pressing the control button 2 to wake up the device 100. Features. The fingerprint detecting circuit 3 is provided with the fingerprint sensing signal for the fingerprint sensor 10 while pressing the control button 2, and the fingerprint is unlocked according to the fingerprint sensing result. After the fingerprint is successfully unlocked, When the return key is triggered to return to the main interface operation, at this time, the fingerprint detecting circuit 3 stops the fingerprint sensor 10 from providing the fingerprint detecting signal, and can return to the main interface or the lock screen without performing fingerprint detection. According to the above description, when the setting function is started by the control button 2, the device 100 can perform fingerprint detection at the same time, determine whether to activate the setting function, and the security is high, and the device can be The fingerprint sensing is performed while triggering the control button 2, and the operation is simple and the work efficiency is high.

The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments are obvious to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but the scope of the invention is to be accorded

1‧‧‧Finger sensing area
2‧‧‧Control buttons
3‧‧‧Fingerprint sensing circuit
4‧‧‧Control Module
10‧‧‧Fingerprint sensor
11‧‧‧Fingerprint sensing electrode
51‧‧‧Border area
52‧‧‧ display area
100‧‧‧ device
200‧‧‧Electronic devices
300‧‧‧ display panel

[FIG. 1] FIG. 1 is a schematic structural diagram of an apparatus for a fingerprint sensing function according to an embodiment of the present invention. [FIG. 2] FIG. 2 is a schematic structural diagram of another apparatus for fingerprint sensing function according to an embodiment of the present invention. [FIG. 3] FIG. 3 is a schematic structural diagram of another apparatus for fingerprint sensing function according to an embodiment of the present invention. [FIG. 4] FIG. 4 is a schematic structural diagram of another apparatus for fingerprint sensing function according to an embodiment of the present invention. [Fig. 5] Fig. 5 is a schematic structural view of an electronic device according to an embodiment of the present invention.

1‧‧‧Finger sensing area

2‧‧‧Control buttons

3‧‧‧Fingerprint sensing circuit

4‧‧‧Control Module

10‧‧‧Fingerprint sensor

11‧‧‧Fingerprint sensing electrode

100‧‧‧ device

Claims (25)

The device of the fingerprint sensing function comprises: a control button; a fingerprint sensor for sensing a fingerprint input of a predetermined area of the device surface, and defining the predetermined area as a fingerprint sensing area, the fingerprint sensing area is adjacent to the fingerprint sensing area The area where the control button is located, so that when the control button is pressed, the fingerprint sensing area can be touched by the same finger; the fingerprint sensing circuit is connected to the fingerprint sensor, and the fingerprint sensing circuit is the fingerprint feeling The sensor provides a fingerprint sensing signal for controlling the fingerprint sensor to perform fingerprint sensing, and acquiring fingerprint sensing information of the fingerprint sensor; and a control module connected to the fingerprint sensing circuit, the control module Used to control the device to perform the setting function. The device of claim 1, wherein the control module is configured to determine, according to the fingerprint sensing information, whether to control the device to perform a setting function. The device of claim 1, the fingerprint sensing area and the control button do not overlap. The device of claim 1, wherein the control button is a mechanical button or a touch button. The device of claim 4, when the control button is a mechanical button, the control button is first pressed, and the fingerprint sensing area is touched to perform fingerprint detection; when the control button is a touch button, The control button is pressed simultaneously with the fingerprint sensing area to perform fingerprint detection. The device of claim 1, wherein the control button is at least one of a power button, a volume button, and a return button of the device; or the control button is used to control the fingerprint sensing circuit to provide a fingerprint feeling. The signal is measured to the control button of the fingerprint sensor. The device of claim 1, the fingerprint sensor comprising a fingerprint sensing electrode that is capacitively coupled to a user's finger. The device of claim 7, wherein the fingerprint sensing circuit is connected to the fingerprint sensing electrode, and the fingerprint sensing circuit controls the fingerprint sensing electrode to perform self-capacitance fingerprint sensing for the fingerprint sensing electrode. Capacitance detection to obtain the fingerprint sensing information, or the fingerprint sensing circuit provides a mutual capacitance fingerprint sensing signal for the fingerprint sensing electrode, and controls the grain sensing electrode to perform mutual capacitance detection to obtain the fingerprint sensing information. . The device of claim 1, the device being an electronic device. The device of claim 9, the electronic device includes a display panel for displaying a screen, the area defining the display screen of the display panel is a display area, and the peripheral area surrounding the display area is defined as a border area, the control The button and the fingerprint sensor are disposed in the border area. The device of claim 10, wherein the display panel is a liquid crystal display panel. The device of claim 9, the electronic device being a mobile phone or a tablet. The device of claim 1, wherein the fingerprint sensing area surrounds the control button or is located on at least one side of the control button. The device of claim 1, wherein the setting function is at least one of a fingerprint payment, a fingerprint unlocking, and a fingerprint flip navigation. The device of any one of claims 1 to 14, wherein the control button is pressed to trigger the fingerprint sensing circuit to provide the fingerprint sensing signal to the fingerprint sensor. The device of claim 15, when the device is in a preset state, the control button is pressed to trigger the fingerprint sensing circuit to provide the fingerprint sensing signal to the fingerprint sensor, wherein the preset state includes Lock screen status, unlock and run the payment application state, unlock and run the page to view the application state. The device of any one of claims 1 to 14, further comprising an application module for performing a setting function, the application module triggering the fingerprint sensing circuit for the fingerprint sensing signal to the fingerprint sensing Device. The device of claim 1, wherein the control button is defined as a button area in a surface area of the device, the button area being disposed adjacent to the fingerprint sensing area, wherein a sum of an area of the button area and the fingerprint sensing area is Not more than 2 square centimeters. The apparatus of claim 18, wherein the sum of the area of the button area and the fingerprint sensing area is no more than 1.5 square centimeters or 1 square centimeter. The device of claim 2, when the control module determines that the fingerprint sensing information is correct fingerprint information, then correspondingly controlling the fingerprint sensing circuit to stop providing the fingerprint sensing signal to the fingerprint sensor. A device for fingerprint sensing function, comprising: a control area, which is a continuous area, located on a surface of the device, and the control area has an area of no more than 2 square centimeters; and a control button for receiving a user on the surface of the device a finger pressing operation of the first predetermined area, defining the first predetermined area as a button area; a fingerprint sensor for sensing a fingerprint input of a second predetermined area of the surface of the device, and defining the second predetermined area as a fingerprint sensing area, the fingerprint sensing area being adjacent to the button area such that the control button When being pressed, the fingerprint sensing area can be touched by the same finger, wherein the fingerprint sensing area and the button area fall into the control area; the fingerprint sensing circuit is connected to the fingerprint sensor, and the fingerprint sensing The circuit provides a fingerprint sensing signal for the fingerprint sensor to control the fingerprint sensor to perform fingerprint sensing, and obtain fingerprint sensing information of the fingerprint sensor; and a control module connected to the fingerprint sensing circuit The control module is configured to control the device to perform a setting function. The device of claim 21, wherein the control module is configured to determine, according to the fingerprint sensing information, whether to control the device to perform a setting function. The device of claim 21, wherein the fingerprint sensing area does not overlap with the button area. The device of claim 21, wherein the control area has an area of no greater than 1.5 square centimeters or 1 square centimeter. The device of claim 21, comprising: a display area for displaying a picture and a frame area located around the display area, the frame area being non-transparent, the control area being located in the frame area.