CN113343195A

CN113343195A - Electronic equipment and fingerprint unlocking method and fingerprint unlocking device thereof

Info

Publication number: CN113343195A
Application number: CN202110606462.8A
Authority: CN
Inventors: 林华鑫
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2021-05-27
Filing date: 2021-05-27
Publication date: 2021-09-03
Anticipated expiration: 2041-05-27
Also published as: WO2022247762A1; CN113343195B

Abstract

The application discloses an electronic device, which comprises a display screen, a shell, a grain image acquisition module and a fingerprint depth acquisition module, wherein the display screen is arranged on the shell, the display screen and the shell form an inner cavity of the device, and the grain image acquisition module and the fingerprint depth acquisition module are arranged in the inner cavity of the device; the display screen comprises a finger placing area, the grain image acquisition module is used for shooting a grain image of a finger placed in the finger placing area, the fingerprint depth acquisition module is used for detecting a depth image of the finger, and the depth image comprises depth information capable of representing the distance between a corium layer and an epidermis layer of the finger. According to the scheme, the electronic equipment in the related technology is modified, so that the electronic equipment is unlocked by acquiring two different image information.

Description

Electronic equipment and fingerprint unlocking method and fingerprint unlocking device thereof

Technical Field

The present application relates to the field of communications devices, and in particular, to an electronic device, a fingerprint unlocking method thereof, and a fingerprint unlocking apparatus.

Background

As user demands increase, the performance of electronic devices continues to optimize. The more prominent expression is as follows: the security performance of the electronic equipment is better and better. More and more electronic equipment disposes the optics fingerprint identification module of installing in the display screen below. This kind of setting up mode of optics fingerprint identification module not only can realize fingerprint identification, but also is favorable to realizing great screen and accounts for the ratio.

However, the optical fingerprint identification module that related art relates realizes electronic equipment's unblock through acquireing 2D fingerprint line. Lawbreakers can easily acquire 2D fingerprint line information and then form false information to carry out fingerprint identification, for example lawbreakers can print fingerprints through 2D conductive paper and then form false fingerprints, or copy 2D fingerprint line information through inkpad and then form false fingerprints and so on. Obviously, the false fingerprints can pass through the fingerprint verification of the electronic device, and finally, a great safety hazard is caused. It can be seen that the electronic device configured with such an optical fingerprint identification module still has a great safety problem.

Disclosure of Invention

The application discloses electronic equipment can solve and only realize electronic equipment's unblock through 2D fingerprint line among the correlation technique to lead to electronic equipment to have the problem of great potential safety hazard.

In order to solve the above technical problem, the present application is implemented as follows:

first aspect, the application discloses electronic equipment obtains module and fingerprint degree of depth and obtains the module including display screen, casing, line image, wherein:

the display screen is arranged in the shell, the display screen and the shell form an equipment inner cavity, and the grain image acquisition module and the fingerprint depth acquisition module are arranged in the equipment inner cavity;

the display screen comprises a finger placing area, the grain image acquisition module is used for shooting a grain image of a finger placed in the finger placing area, the fingerprint depth acquisition module is used for detecting a depth image of the finger, and the depth image comprises depth information capable of representing the distance between a corium layer and an epidermis layer of the finger.

In a second aspect, an embodiment of the present application discloses a fingerprint unlocking method for an electronic device, where the electronic device is the electronic device of the first aspect, and the fingerprint unlocking method includes:

acquiring the texture image through the texture image acquisition module and acquiring the depth image through the fingerprint depth acquisition module;

and controlling the electronic equipment to unlock under the condition that the grain image is the same as the preset grain image and the depth image is the same as the preset depth image.

In a third aspect, an embodiment of the present application discloses a fingerprint unlocking device for an electronic device, where the electronic device is the electronic device of the first aspect, and the fingerprint unlocking device includes:

the acquisition module comprises the line image acquisition module and the fingerprint depth acquisition module, and is used for acquiring the line image through the line image acquisition module and acquiring the depth image through the fingerprint depth acquisition module;

the first control module is used for controlling the electronic equipment to unlock under the condition that the grain image is the same as the preset grain image and the depth image is the same as the preset depth image.

In a fourth aspect, an embodiment of the present application discloses a terminal device, which includes a processor, a memory, and a program or instructions stored on the memory and executable on the processor, where the program or the instructions, when executed by the processor, implement the steps of the fingerprint unlocking method according to the second aspect.

In a fifth aspect, an embodiment of the present application discloses a readable storage medium, on which a program or instructions are stored, and when executed by a processor, the program or the instructions implement the steps of the fingerprint unlocking method according to the second aspect.

The technical scheme adopted by the application can achieve the following beneficial effects:

according to the electronic equipment disclosed by the embodiment of the application, through transformation of the electronic equipment in the related technology, the electronic equipment is unlocked by acquiring two different image information. Specifically, when the user is at unblock electronic equipment, the line image acquires the module and places the finger that places the district at the finger and shoot the time, and the fingerprint degree of depth acquires the module and also detects, and the line image and the depth image that electronic equipment will shoot contrast respectively with the preset line image that the user types in advance with preset depth image, and at line image with preset line image the same, and under the depth image and the same circumstances of preset depth image, electronic equipment just can accomplish the unblock. Therefore, the depth image of the finger of the user is only available to the human body, and even if lawbreakers acquire the grain image of the user, the electronic equipment is difficult to unlock through counterfeiting, so that the potential safety hazard of the electronic equipment is reduced, and the safety of the electronic equipment is further improved.

Drawings

Fig. 1 is a partial cross-sectional view of an electronic device disclosed in an embodiment of the present application;

FIG. 2 is a block diagram of an electronic device disclosed in an embodiment of the present application;

FIG. 3 is a schematic illustration of a first region and a second region disclosed in an embodiment of the present application;

fig. 4 is a schematic diagram of a hardware structure of a terminal device for implementing the embodiment of the present application.

Description of reference numerals:

100-display screen,

200-shell body,

300-grain image acquisition module, 310-first image chip, 320-first lens, 330-first optical filter, 340-first circuit board,

400-fingerprint depth acquisition module, 410-near infrared transmitter, 420-near infrared receiver, 421-second image chip, 430-second lens, 440-second optical filter, 450-second circuit board,

A-equipment inner cavity,

B-a first region,

C-a second region,

D-overlap region,

E-a finger placement area,

1200-terminal device, 1201-radio unit, 1202-network module, 1203-audio output unit, 1204-input unit, 12041-graphics processor, 12042-microphone, 1205-sensor, 1206-display unit, 12061-display panel, 1207-user input unit, 12071-touch panel, 12072-other input device, 1208-interface unit, 1209-memory, 1210-processor, 1211-power supply.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein. The objects distinguished by "first", "second", and the like are usually a class, and the number of the objects is not limited, and for example, the first object may be one or a plurality of objects. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

The technical solutions disclosed in the embodiments of the present application are described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.

Referring to fig. 1 to 3, an embodiment of the present application discloses an electronic device, which includes a display screen 100, a housing 200, and a fingerprint identification module. Wherein, the fingerprint identification module includes that line image acquires module 300 and fingerprint degree of depth and acquires module 400.

The housing 200 is a basic component of the electronic device, and the housing 200 can provide a mounting base for the display screen 100. The display screen 100 is a display function device of an electronic device, and the display screen 100 may be a flexible display screen, a curved display screen, or the like. Specifically, the display screen 100 is disposed in the housing 200, and meanwhile, the display screen 100 and the housing 200 form an apparatus cavity a, the apparatus cavity a may accommodate some other components of the electronic apparatus, and the grain image acquisition module 300 and the fingerprint depth acquisition module 400 are disposed in the apparatus cavity a. In addition, the device interior cavity a may also provide protection for some other components in the electronic device (e.g., a battery, a first circuit board 340 and a second circuit board 450, described below, etc.).

The display screen 100 includes a finger placement area E. Alternatively, the finger placing area E may be a circular area or an oblate area. Specifically, the texture image obtaining module 300 is configured to shoot a texture image of a finger placed in the finger placement area E (i.e., a 2D fingerprint texture described in the background art), and the fingerprint depth obtaining module 400 is configured to detect a depth image of the finger, where the depth image includes depth information that can represent a distance between a dermis layer and an epidermis layer of the finger.

In this application embodiment, the user need type in advance the preset line image and preset the depth image of its finger, specifically, the user places the finger and places district E at the finger, and when line image acquireed module 300 and shot, the fingerprint depth acquireed module 400 also measured, then electronic equipment can type in user's preset line image and preset the depth image. In the process of user's unblock electronic equipment, the user places the finger and places district E at the finger, when line image acquireed module 300 shot user's line image, the fingerprint degree of depth acquireed module 400 detects the depth image, electronic equipment's fingerprint identification module is through comparing line image and preset line image and comparing the depth image with preset depth image, it is the same with preset line image at line image, and under the same circumstances of depth image and preset depth image, electronic equipment just can accomplish the unblock.

According to the electronic equipment disclosed by the embodiment of the application, through transformation of the electronic equipment in the related technology, the electronic equipment is unlocked by acquiring two different image information. Specifically, when the user is at unblock electronic equipment, line image acquires module 300 and places the finger that places district E at the finger and shoot the time, and the fingerprint degree of depth acquires module 400 and also detects, and electronic equipment compares line image and the degree of depth image that will shoot respectively with the preset line image and the preset degree of depth image that the user types in advance, and under the condition that line image is the same with preset line image, and degree of depth image is the same with preset degree of depth image, electronic equipment just can accomplish the unblock. Because the depth image of the finger of the user is only available to the human body, even if lawbreakers acquire the grain image of the user, unlocking of the electronic equipment is difficult to realize through counterfeiting, so that the potential safety hazard of the electronic equipment is reduced, and the safety of the electronic equipment is further improved.

It should be noted that, herein, the distance between the dermis layer and the epidermis layer refers to the depth of the dermis layer, that is, the distance between the outer surface of the epidermis layer and the dermis layer.

In this embodiment, the grain image obtaining module 300 may include a first circuit board 340 and a first image chip 310 disposed on the first circuit board 340, where the first circuit board 340 supplies power to the first image chip 310, and specifically, the first image chip 310 is electrically connected to the first circuit board 340. The first image chip 310 may be used for sensing the visible light emitted by the display screen 100 and reflected by the finger, and finally forming a fingerprint image of the finger. When the fingers of the user are placed in the finger placing area E, slight extrusion deformation is formed on the finger placing area E, and the visible light is transmitted to the first image chip 310 through total reflection of the deformed finger placing area E, so that a grain image is formed.

In a further technical solution, the fingerprint depth acquiring module 400 may include a near-infrared transmitter 410 and a near-infrared receiver 420, where the near-infrared receiver 420 may include a second image chip 421 and a second circuit board 450, specifically, the second image chip 421 may be disposed on the second circuit board 450, and the second image chip 421 is electrically connected to the second circuit board 450, so that the second circuit board 450 supplies power to the fingerprint depth acquiring module. The near infrared light emitted from the near infrared emitter 410 may be received by the second image chip 421 after sequentially passing through the display screen 100 and being reflected by the finger. Wherein near infrared light can pass through the display screen 100 to the epidermis layer of the finger, and even through the epidermis layer to the dermis layer. Then, the dermis layer and the epidermis layer of the finger reflect the near infrared light to the second image chip 421, because there is a distance between the dermis layer and the epidermis layer, the near infrared light respectively reaching the dermis layer and the epidermis layer cannot reach the second image chip 421 at the same time after being reflected, the second image chip 421 can respectively receive the near infrared light reflected from the epidermis layer and the near infrared light reflected from the dermis layer, and finally the near infrared light is displayed on the depth image, and the depth information can be obtained by analyzing the depth image through a time-of-flight (TOF) method.

Certainly, the fingerprint depth obtaining module 400 does not necessarily need to use near infrared light, and can obtain the depth image by other light rays which can penetrate through the epidermis layer of the finger and reach the dermis layer. This is not limited by the present application.

The electronic equipment disclosed in the embodiment of the application can be provided with the flexible circuit board, the one end of the flexible circuit board is connected with the first circuit board 340, and the other end of the flexible circuit board is connected with the second circuit board 450, so that the electric connection between the first circuit board 340 and the second circuit board 450 or the power supply cooperation between the first circuit board and the second circuit board 450 can be realized, and meanwhile, the flexible circuit board has foldability, so that the flexible circuit board can be arranged in the inner cavity A of the equipment, and other parts cannot be interfered. Of course, other methods can be adopted, and in another alternative scheme, the first circuit board 340 and the second circuit board 450 can be of an integrated structure, the integrated structure can integrate the functions of the first circuit board 340 and the second circuit board 450, and the spatial layout of the first circuit board 340 and the second circuit board 450 in the device inner cavity a can be optimized, so that the problems that the occupied space is large and the installation is complicated due to the fact that the two circuit boards are installed separately are avoided.

In the embodiment of the present application, the texture image capturing module 300 may include a first lens 320 and a first filter 330, and specifically, the first lens 320 may be disposed on a first circuit board 340, and cover the first image chip 310, so that the first lens 320 can provide protection for the first image chip 310, the first lens 320 can also adjust the direction angle of the visible light by refraction, thereby allowing visible light to be transmitted to the first image chip 310, the first filter 330 may cover the first image chip 310, the first filter 330 is used for filtering near infrared light, thereby preventing near-infrared light emitted from the near-infrared emitter 410 from being doped in the visible light emitted from the display screen 100, and then avoid line image to acquire the line image that module 300 shot the user and receive the influence, and then be favorable to guaranteeing the line image and acquire the line image's of module 300 shooting accuracy nature.

In a further embodiment, the fingerprint depth obtaining module 400 may further include a second lens 430 and a second filter 440, specifically, the second lens 430 may be disposed on the second circuit board 450, and cover the second image chip 421, so that the second lens 430 can provide protection for the second image chip 421, the second lens 430 can also adjust the direction angle of the near-infrared light by refraction, thereby enabling the near infrared light to be transmitted to the second image chip 421, the second filter 440 may cover the second image chip 421, the second filter 440 is used for filtering out the visible light, thereby preventing visible light emitted from the display screen 100 from being doped in near infrared light emitted from the near infrared emitter 410, and then avoid the fingerprint degree of depth to acquire the degree of depth image that module 400 shot the user and receive the influence, and then be favorable to guaranteeing the fingerprint degree of depth and acquire the degree of depth image's that module 400 detected accuracy nature.

In the embodiment of the present application, the field of view area corresponding to the grain image obtaining module 300 on the display screen 100 may be the first area B, and the field of view area corresponding to the fingerprint depth obtaining module 400 on the display screen 100 may be the second area C.

In an alternative, the first region B is completely non-coincident with the second region C. The user needs to first place a finger on the first area B and then place a finger on the second area C. In this case, the electronic device firstly performs contrast confirmation of the texture image and the preset texture image, and then performs contrast confirmation of the depth image and the preset depth image, and if the texture image is not the same as the preset texture image or the depth image is not the same as the preset depth image, the user repositions the finger according to the above operation mode. Alternatively, the user needs to place a first finger on the first area B and a second finger on the second area C at the same time. Under the condition, the electronic equipment performs contrast confirmation of the grain image of the first finger and the preset grain image and also performs contrast confirmation of the depth image of the second finger and the preset depth image, and if the grain image is not the same as the preset grain image or the depth image is not the same as the preset depth image, the user replaces the finger according to the operation mode. Although this method can also realize identification, it is inconvenient for users to use.

Based on this, in another alternative, the first region B and the second region C may partially overlap, and the region overlapping with each other is an overlapping region D. Under this kind of condition, under user's finger only need cover the condition of coincidence zone D completely, when line image acquireed module 300 can shoot line image, the fingerprint degree of depth acquireed module 400 also can detect the degree of depth image, and this can realize undoubtedly that the user can be simultaneously by line image acquireed module 300 and the detection of fingerprint degree of depth acquireed module 400 under the condition of pressing once.

In a further technical scheme, the area ratio of the overlapping area D to the finger placing area E can be more than or equal to 50%, and under the condition, the situation that the fingerprint detection of the finger is incomplete and the finger is pressed for multiple times due to the fact that the area of the overlapping area D is small can be avoided. The structure not only improves the unlocking efficiency of the electronic equipment, but also reduces the excessive occupation of the finger placing area E on the area of the display screen 100 due to the partial superposition of the first area B and the second area C.

In a further technical scheme, the first region B may be located within the finger placement region E, thereby facilitating acquisition of a relatively complete grain image. Since the depth information does not need to rely on detection of a large area, part of the second area C may be located within the finger placement area E.

Specifically, the field angle of the fingerprint depth acquisition module 400 may be a first field angle, the field angle of the grain image acquisition module 300 may be a second field angle, and the first field angle is greater than the second field angle, in this case, because the fingerprint depth acquisition module 400 does not need to shoot the finger region with a large area, the second field angle is designed to be greater than the first field angle, which is more beneficial to the interval arrangement of the fingerprint depth acquisition module 400 and the grain image acquisition module 300, and the problem of difficult assembly due to excessive close contact between the two is avoided.

Based on the electronic device disclosed in the embodiment of the present application, the embodiment of the present application discloses a fingerprint unlocking method for an electronic device, the electronic device involved is the electronic device described in the above embodiment, and the fingerprint unlocking method includes:

step 101, obtaining a texture image through a texture image obtaining module 300 and obtaining a depth image through a fingerprint depth obtaining module 400;

in this step, the visible light emitted from the display screen 100 is reflected to the first image chip 310 by the finger, so as to form a textured image, and the near-infrared light emitted from the near-infrared emitter 410 is transmitted to the second image chip 421 after being reflected by the display screen 100 and the finger in sequence, wherein the dermis layer and the epidermis layer of the finger can reflect the near-infrared light to the second image chip 421, so that the second image chip 421 can detect the depth image of the finger by the near-infrared light.

And 102, controlling the electronic equipment to unlock under the condition that the grain image is the same as the preset grain image and the depth image is the same as the preset depth image.

According to the fingerprint unlocking method disclosed by the embodiment of the application, whether the line image is consistent with the preset line image and whether the depth image is consistent with the preset depth image or not can be simultaneously compared, and then corresponding processing is carried out according to the comparison result.

In a further technical solution, after obtaining the texture image through the texture image obtaining module 300, the fingerprint unlocking method disclosed in the embodiment of the present application may further include:

step 201, judging whether the grain image is the same as a preset grain image;

step 202, under the condition that the grain image is the same as the preset grain image, judging whether the depth image is the same as the preset depth image or not;

in this step, when the grain image captured by the grain image acquisition module 300 is the same as the pre-stored grain image entered by the user in advance, the comparison between the depth image detected by the fingerprint depth acquisition module 400 and the pre-stored depth image entered by the user in advance can be confirmed.

And 203, sending out unlocking failure prompt information or re-pressing prompt information under the condition that the grain image is different from the preset grain image.

Under the condition, once the fingerprint image is different from the pre-stored grain image, the unlocking failure prompt message is directly sent or the prompt message is pressed again, the comparison between the depth image and the preset depth image is not needed in the process, the identification efficiency can be undoubtedly improved, and the useless identification process is reduced.

Of course, the depth image and the preset depth image may be compared first, and then the grain image and the preset grain image may be compared under the condition that the depth image is the same as the preset depth image. And directly sending out unlocking failure prompt information or re-pressing prompt information once the depth image is different from the preset depth image. Because the depth image has less information and is compared quickly, the depth image and the preset depth image are compared firstly, and the identification efficiency can be further improved.

In a further technical solution, the fingerprint unlocking method disclosed in the embodiment of the present application may further include:

step 301, detecting the contact area of the finger placing area E and the finger;

and step 302, sending out unlocking failure prompt information or re-pressing prompt information under the condition that the contact area is smaller than half of the area of the finger placing area E.

In this step, if the area that user's finger was placed is less than the area that the finger placed district E half, then the area that user's finger covered coincidence zone D is less, is unfavorable for acquireing comparatively complete line image to lead to line image to acquire that line image is difficult to shoot line image and fingerprint depth and acquire that module 400 is also difficult to detect the depth image, this can cause the puzzlement to the discernment. Under the condition, the unlocking failure prompt message or the re-pressing prompt message is sent to remind the user to replace the pressing position so as to identify the next time as soon as possible, and the unlocking failure prompt message or the re-pressing prompt message is undoubtedly convenient for the user to use.

Based on the electronic equipment disclosed by the embodiment of the application, the embodiment of the application discloses a fingerprint unlocking device, the related electronic equipment is the electronic equipment described by the embodiment, and the fingerprint unlocking device comprises:

the acquisition module comprises a texture image acquisition module 300 and a fingerprint depth acquisition module 400, and is used for acquiring a texture image through the texture image acquisition module 300 and acquiring a depth image through the fingerprint depth acquisition module 400;

In an optional scheme, the fingerprint unlocking device further comprises:

the first judging module is used for judging whether the grain image is the same as the preset grain image or not;

the second judgment module is used for judging whether the depth image is the same as the preset depth image or not under the condition that the texture image is the same as the preset texture image;

and the second control module is used for controlling to send out unlocking failure prompt information or re-pressing prompt information under the condition that the grain image is different from the preset grain image.

In a further technical solution, the fingerprint unlocking device may further include:

the detection module is used for detecting the contact area of the finger placing area E and the finger;

a calculating module for calculating a first ratio of the contact area to the area of the finger placement area E:

and the second control module is used for sending out unlocking failure prompt information or re-pressing prompt information under the condition that the first ratio is less than 0.5.

Since the fingerprint unlocking device of the electronic device disclosed in the embodiment of the present application corresponds to the fingerprint unlocking method of the electronic device described in the embodiment above, the corresponding portions may refer to the corresponding descriptions of the above fingerprint unlocking method portions, and are not described herein again.

The electronic device disclosed in the embodiment of the present application may be a mobile phone, a computer, an electronic book reader, a game machine, a wearable device, or the like, and certainly, the electronic device may also be other types of devices.

Fig. 4 is a schematic diagram of a hardware structure of a terminal device for implementing various embodiments of the present application.

The terminal device 1200 includes, but is not limited to: radio frequency unit 1201, network module 1202, audio output unit 1203, input unit 1204, sensor 1205, display unit 1206, user input unit 1207, interface unit 1208, memory 1209, processor 1210, and power source 1211. Those skilled in the art will appreciate that the configuration of terminal device 1200 shown in fig. 4 is not intended to be limiting, and that terminal device may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present application, the terminal device includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.

The sensor 1205 may include a first image chip 310 and a second image chip 421 for detecting a texture image and a depth image of a finger of a user. The first image chip 310 and the second image chip 421 may be photosensitive sensors, and the processor 1210 obtains a texture image and a depth image of the finger of the user based on a photosensitive relationship between the first image chip 310 and visible light and a photosensitive relationship between the second image chip 421 and near-infrared light.

It should be understood that, in the embodiment of the present application, the radio frequency unit 1201 may be used for receiving and sending signals during a message transmission or a call, and specifically, receive downlink data from a base station and then process the received downlink data to the processor 1210; in addition, the uplink data is transmitted to the base station. Typically, the radio frequency unit 1201 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 1201 can also communicate with a network and other devices through a wireless communication system.

The terminal device provides wireless broadband internet access to the user through the network module 1202, such as helping the user send and receive e-mails, browse web pages, access streaming media, and the like.

The audio output unit 1203 may convert audio data received by the radio frequency unit 1201 or the network module 1202 or stored in the memory 1209 into an audio signal and output as sound. Also, the audio output unit 1203 may also provide audio output related to a specific function performed by the terminal apparatus 1200 (for example, a call signal reception sound, a message reception sound, and the like). The audio output unit 1203 includes a speaker, a buzzer, a receiver, and the like.

The input unit 1204 is used to receive audio or video signals. The input Unit 1204 may include a Graphics Processing Unit (GPU) 12041 and a microphone 12042, and the Graphics processor 12041 processes image data of a still picture or video obtained by an image capturing apparatus (such as a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 1206. The image frames processed by the graphics processor 12041 may be stored in the memory 1209 (or other storage medium) or transmitted via the radio frequency unit 1201 or the network module 1202. The microphone 12042 can receive sound, and can process such sound into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 1201 in case of the phone call mode.

The terminal device 1200 also includes at least one sensor 1205, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that adjusts the brightness of the display panel 12061 according to the brightness of ambient light, and a proximity sensor that turns off the display panel 12061 and/or backlight when the terminal device 1200 moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal device posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensors 1205 may also include a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, etc., and will not be described further herein.

The display unit 1206 is used to display information input by the user or information provided to the user. The Display unit 1206 may include a Display panel 12061, and the Display panel 12061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 1207 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the terminal device. Specifically, the user input unit 1207 includes a touch panel 12071 and other input devices 12072. The touch panel 12071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 12071 (e.g., operations by a user on or near the touch panel 12071 using a finger, a stylus, or any suitable object or attachment). The touch panel 12071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 1210, receives a command from the processor 1210, and executes the command. In addition, the touch panel 12071 may be implemented by using various types such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. The user input unit 1207 may include other input devices 12072 in addition to the touch panel 12071. In particular, the other input devices 12072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described herein again.

Further, the touch panel 12071 may be overlaid on the display panel 12061, and when the touch panel 12071 detects a touch operation thereon or nearby, the touch operation is transmitted to the processor 1210 to determine the type of the touch event, and then the processor 1210 provides a corresponding visual output on the display panel 12061 according to the type of the touch event. Although the touch panel 12071 and the display panel 12061 are shown as two separate components in fig. 4 to implement the input and output functions of the terminal device, in some embodiments, the touch panel 12071 and the display panel 12061 may be integrated to implement the input and output functions of the terminal device, and is not limited herein.

The interface unit 1208 is an interface for connecting an external device to the terminal apparatus 1200. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 1208 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the terminal apparatus 1200 or may be used to transmit data between the terminal apparatus 1200 and the external device.

The memory 1209 may be used to store software programs as well as various data. The memory 1209 may mainly include a storage program area and a storage data area, where the storage program area may store an operating system, an application program (such as a sound playing function, an image playing function, etc.) required by at least one function, and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the terminal device, and the like. Further, the memory 1209 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device.

The processor 1210 is a control center of the terminal device, connects various parts of the entire terminal device using various interfaces and lines, and performs various functions of the terminal device and processes data by running or executing software programs and/or modules stored in the memory 1209 and calling data stored in the memory 1209, thereby performing overall monitoring of the terminal device. Processor 1210 may include one or more processing units; alternatively, the processor 1210 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It is to be appreciated that the modem processor described above may not be integrated into processor 1210.

The terminal device 1200 may further include a power source 1211 (e.g., a battery) for supplying power to various components, and optionally, the power source 1211 may be logically connected to the processor 1210 through a power management system, so as to implement functions of managing charging, discharging, and power consumption through the power management system.

In addition, the terminal device 1200 includes some functional modules that are not shown, and are not described in detail herein.

Optionally, an embodiment of the present application discloses a terminal device, which includes a processor 1210, a memory 1209, and a program or an instruction stored in the memory 1209 and executable on the processor 1210, where the program or the instruction is executed by the processor 1210 to implement each process of any method embodiment, and can achieve the same technical effect, and no further description is provided here to avoid repetition.

The embodiment of the present application discloses a readable storage medium, where a program or an instruction is stored, and when the program or the instruction is executed by the processor 1210, the program or the instruction implements each process of any of the method embodiments described above, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

An embodiment of the application discloses a computer program product stored in a non-volatile storage medium, the program product being configured to be executed by at least one processor to implement the steps of the control method as described above.

The embodiment of the application discloses a chip, the chip comprises a processor and a communication interface, the communication interface is coupled with the processor, and the processor is used for running a program or an instruction to realize the control method of the embodiment.

In the embodiments of the present application, the difference between the embodiments is described in detail, and different optimization features between the embodiments can be combined to form a better embodiment as long as the differences are not contradictory, and further description is omitted here in view of brevity of the text.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. The utility model provides an electronic equipment, its characterized in that, obtains module (400) including display screen (100), casing (200), line image, and the fingerprint degree of depth, wherein:

the display screen (100) is arranged in the shell (200), the display screen (100) and the shell (200) form an equipment inner cavity (A), and the grain image acquisition module (300) and the fingerprint depth acquisition module (400) are arranged in the equipment inner cavity (A);

the display screen (100) comprises a finger placement area (E), the grain image acquisition module (300) is used for shooting a grain image of a finger placed in the finger placement area (E), the fingerprint depth acquisition module (400) is used for detecting a depth image of the finger, and the depth image comprises depth information capable of representing the distance between the dermis layer and the epidermis layer of the finger.

2. The electronic device according to claim 1, wherein the texture image obtaining module (300) comprises a first circuit board (340) and a first image chip (310) disposed on the first circuit board (340), the first image chip (310) is used for sensing the visible light emitted by the display screen (100) and reflected by the finger, the fingerprint depth obtaining module (400) comprises a near-infrared emitter (410) and a near-infrared receiver (420), the near-infrared receiver (420) comprises a second image chip (421) and a second circuit board (450), the second image chip (421) is disposed on the second circuit board (450), the near-infrared light emitted by the near-infrared emitter (410) can be received by the second image chip (421) after sequentially passing through the display screen (100) and the reflection of the finger, the first circuit board (340) and the second circuit board (450) are of an integrated structure.

3. The electronic device of claim 2, wherein the texture image capturing module (300) comprises a first lens (320) and a first optical filter (330), the first lens (320) is disposed on the first circuit board (340) and covers the first image chip (310), the first optical filter (330) covers the first image chip (310), and the first optical filter (330) is configured to filter the near-infrared light.

4. The electronic device of claim 2, wherein the fingerprint depth acquisition module (400) further comprises a second lens (430) and a second optical filter (440), the second lens (430) is disposed on the second circuit board (450) and covers the second image chip (421), the second optical filter (440) covers the second image chip (421), and the second optical filter (440) is configured to filter the visible light.

5. The electronic device according to claim 1, wherein a corresponding field of view region of the grain image acquisition module (300) on the display screen (100) is a first region (B), a corresponding field of view region of the fingerprint depth acquisition module (400) on the display screen (100) is a second region (C), the first region (B) and the second region (C) are partially overlapped, and the overlapped regions are overlapped regions (D), and an area ratio of the overlapped regions (D) to the finger placement region (E) is greater than or equal to 50%.

6. The electronic device of claim 5, wherein the first region (B) is located within the finger placement area (E), a portion of the second region (C) is located within the finger placement area (E), the fingerprint depth acquisition module (400) has a first field angle, the print image acquisition module (300) has a second field angle, and the first field angle is greater than the second field angle.

7. A fingerprint unlocking method of an electronic device, which is applied to the electronic device of any one of claims 1 to 6, wherein the fingerprint unlocking method comprises the following steps:

acquiring the grain image by the grain image acquisition module (300) and acquiring the depth image by the fingerprint depth acquisition module (400);

8. The fingerprint unlocking method according to claim 7, wherein after the obtaining of the grain image by the grain image obtaining module (300), further comprising:

judging whether the line image is the same as the preset line image or not;

under the condition that the line image is the same as the preset line image, judging whether the depth image is the same as the preset depth image or not;

and sending out unlocking failure prompt information or re-pressing prompt information under the condition that the grain image is different from the preset grain image.

9. The fingerprint unlocking method according to claim 7, further comprising:

detecting a contact area of the finger placement area (E) with the finger;

and sending out unlocking failure prompt information or re-pressing prompt information under the condition that the contact area is smaller than half of the area of the finger placing area (E).

10. A fingerprint unlocking apparatus for an electronic device, wherein the electronic device is the electronic device of claims 1 to 6, the fingerprint unlocking apparatus comprising:

the acquisition module comprises the grain image acquisition module (300) and the fingerprint depth acquisition module (400), and is used for acquiring the grain image through the grain image acquisition module (300) and acquiring the depth image through the fingerprint depth acquisition module (400);

11. The fingerprint unlocking device according to claim 10, further comprising:

the second judgment module is used for judging whether the depth image is the same as the preset depth image or not under the condition that the grain image is the same as the preset grain image;

12. The fingerprint unlocking device according to claim 10, further comprising:

a detection module for detecting the contact area of the finger placement area (E) with the finger;

-a calculation module for calculating a first ratio between the contact area and the area of the finger placement area (E):

13. A terminal device, characterized in that it comprises a processor (1210), a memory (1209) and a program or instructions stored on the memory (1209) and executable on the processor (1210), which program or instructions, when executed by the processor (1210), implement the steps of the fingerprint unlocking method according to any of claims 7 to 9.

14. A readable storage medium, characterized in that it stores thereon a program or instructions which, when executed by a processor (1210), implement the steps of the fingerprint unlocking method according to any of claims 7 to 9.