CN107844694B

CN107844694B - Display screen fingerprint unlocking method, double-sided screen terminal and computer readable storage medium

Info

Publication number: CN107844694B
Application number: CN201711047678.5A
Authority: CN
Inventors: 邱玉磊
Original assignee: Nubia Technology Co Ltd
Current assignee: Nubia Technology Co Ltd
Priority date: 2017-10-31
Filing date: 2017-10-31
Publication date: 2020-04-28
Anticipated expiration: 2037-10-31
Also published as: CN107844694A

Abstract

The invention discloses a display screen fingerprint unlocking method, a double-sided screen terminal and a computer readable storage medium, wherein a first display screen on the front side of the terminal is unlocked if the inclined direction is left when a hand inputting fingerprint information is a left hand and a second display screen on the back side of the terminal is unlocked if the inclined direction is right by combining the inclined direction when the fingerprint information is input and the input is left hand or right hand; and when the hand for inputting the fingerprint information is the right hand, if the inclination direction is right, unlocking the first display screen positioned on the front side of the terminal, and if the inclination direction is left, unlocking the second display screen positioned on the back side of the terminal. The whole fingerprint unlocking process of the user is more consistent with ergonomics, and the problem that the display screen which the user wants to unlock cannot be unlocked through the fingerprint unlocking function at present is solved. Meanwhile, in the whole fingerprint unlocking process, a user only needs to input fingerprint information without performing other operations, the operation process is simple, the method is very friendly to the user, and the user experience is high.

Description

Display screen fingerprint unlocking method, double-sided screen terminal and computer readable storage medium

Technical Field

The invention relates to the technical field of terminals, in particular to a display screen fingerprint unlocking method, a double-sided screen terminal and a computer readable storage medium.

Background

With the continuous development of terminal technology, the structure, shape, function, etc. of the terminal are also continuously updated. At present, a terminal with a new structure, namely a double-sided screen terminal, appears on the market. The double-sided screen terminal is characterized in that a display screen is respectively arranged on the front side and the back side of the terminal, and the structure of the double-sided screen terminal can be seen from fig. 1, and the double-sided screen terminal comprises a terminal body 11, a first display screen 12 arranged on the front side of the terminal and a second display screen 13 arranged on the back side of the terminal. Due to the fact that the structure of the double-sided screen terminal is different from that of a conventional single-sided screen terminal, brand new user experience and operation modes are certainly brought by the design of the double-sided screen terminal.

Meanwhile, the fingerprint unlocking function becomes the standard matching function of most terminals basically, but the current fingerprint unlocking function is to compare the fingerprint currently input by the user with the fingerprint pre-input in the terminal, and unlock the display screen when the comparison is passed. The fingerprint unlocking function is designed for a single-side screen terminal and can only be applied to the single-side screen terminal. And two-sided screen terminal is because it has two display screens, when rethread above-mentioned fingerprint unblock function unblock, just can't confirm that the display screen that the user will unlock is specifically which one. Therefore, how to define which piece of the display screen is to be unlocked when the user uses the dual-screen terminal through the fingerprint unlocking function becomes a problem to be solved urgently.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the fingerprint unlocking function of the current display screen is quite popular, but the current fingerprint unlocking function is designed for a single-face screen terminal, and the specific piece of the display screen to be unlocked by a user cannot be determined through the question unlocking function when the double-face screen terminal is used. Aiming at the technical problem, a display screen fingerprint unlocking method, a double-sided screen terminal and a computer readable storage medium are provided.

In order to solve the technical problem, the invention provides a display screen fingerprint unlocking method, which is applied to a double-sided screen terminal, wherein the double-sided screen terminal comprises a first display screen arranged on the front side of the terminal and a second display screen arranged on the back side of the terminal, and the display screen fingerprint unlocking method comprises the following steps:

receiving fingerprint information input from the outside of the terminal, and matching the fingerprint information with standard fingerprint information input in the terminal;

when matching is successful, determining a corresponding hand of the fingerprint information;

detecting the inclination direction of the fingerprint information when the fingerprint information is input;

and unlocking the corresponding display screen according to the inclination direction and a preset display screen unlocking strategy of the corresponding hand of the fingerprint information.

Optionally, the unlocking the corresponding display screen according to the tilt direction and the preset display screen unlocking strategy of the corresponding hand of the fingerprint information includes:

when the corresponding hand of the fingerprint information is the left hand, if the inclination direction is leftward inclination, unlocking the first display screen; if the inclination direction is rightward inclination, unlocking the second display screen;

when the corresponding hand of the fingerprint information is the right hand, if the inclination direction is rightward inclination, unlocking the first display screen; and if the inclination direction is leftward inclination, unlocking the second display screen.

Optionally, the detecting the tilt direction of the fingerprint information at the time of input includes:

detecting the grain direction in the fingerprint information;

and determining the inclination direction of the fingerprint information during input according to the grain direction.

detecting a fingerprint profile in the fingerprint information;

and determining the inclination direction of the fingerprint information during input according to the fingerprint outline.

Optionally, the method further includes:

when the standard fingerprint information is input into the terminal, recording a corresponding hand of the standard fingerprint information;

when the matching is successful, the determining the corresponding hand of the fingerprint information comprises:

determining a corresponding hand of the standard fingerprint information that matches the fingerprint information as a corresponding hand of the fingerprint information.

Optionally, the recording of the corresponding hand of the standard fingerprint information includes:

detecting the grain direction of the standard fingerprint information during recording;

and determining and recording the corresponding hand of the standard fingerprint information according to the grain direction.

after the standard fingerprint information is input, providing and displaying a corresponding hand selection interface of the standard fingerprint information;

and recording the corresponding hand of the standard fingerprint information according to the corresponding hand selection information received by the corresponding hand selection interface.

Optionally, the unlocking the corresponding display screen includes:

lightening the display screen and displaying a display screen unlocking confirmation interface in the display screen;

and after the unlocking confirmation information is received by the display screen unlocking confirmation interface, unlocking the display screen.

Further, the present invention also provides a dual-screen terminal, including: a processor, a memory, and a communication bus;

the communication bus is used for realizing connection communication between the processor and the memory;

the processor is used for executing one or more programs stored in the memory to realize the steps of any one of the above-mentioned display screen fingerprint unlocking methods.

Further, the present invention also provides a computer readable storage medium storing one or more programs, which are executable by one or more processors to implement the steps of the display screen fingerprint unlocking method of any one of the above.

Advantageous effects

The invention provides a display screen fingerprint unlocking method, a double-sided screen terminal and a computer readable storage medium. And determines the corresponding hand of the user to input fingerprint information (i.e., determines whether the hand to input fingerprint information is left or right) when the matching is successful. In addition, the terminal can also detect the inclination direction of the fingerprint information during input, and further unlock the corresponding display screen according to the inclination direction and a preset display screen unlocking strategy of the corresponding hand of the fingerprint information. Therefore, when the user uses the double-sided screen terminal, if the user unlocks through the fingerprint, the terminal can judge whether the user inputs the fingerprint through the left hand or the right hand according to the fingerprint input by the user, and further judge the display screen which the user wants to unlock at present according to the inclination direction of the user when the user inputs the fingerprint at present. The problem of can't go out the display screen that the user wanted the unblock through fingerprint unblock function at present is solved. Meanwhile, in the whole fingerprint unlocking process, a user only needs to input fingerprint information without performing other operations, the operation process is simple, the method is very friendly to the user, and the user experience is high.

Drawings

The invention will be further described with reference to the accompanying drawings and examples, in which:

fig. 1 is a schematic structural diagram of a dual-screen terminal according to the background art of the present invention;

fig. 2 is a schematic diagram of a hardware structure of an optional terminal for implementing various embodiments of the present invention;

fig. 3 is a basic flowchart of a display screen fingerprint unlocking method according to a first embodiment of the present invention;

fig. 4 is a schematic structural diagram of a front side of a dual-screen terminal according to a first embodiment of the present invention;

fig. 5 is a schematic structural diagram of a back side of a dual-screen terminal according to a first embodiment of the present invention;

fig. 6 is a schematic diagram illustrating a comparison process of fingerprint information according to a first embodiment of the present invention;

FIG. 7 is a diagram of an example of a fingerprint according to a first embodiment of the present invention;

fig. 8 is a schematic flowchart of recording standard fingerprint information corresponding to a left hand or a right hand according to a first embodiment of the present invention;

FIG. 9 is a diagram illustrating a left-handed fingerprint input according to a first embodiment of the present invention;

FIG. 10 is a schematic diagram of a right-hand fingerprint input according to a first embodiment of the present invention;

fig. 11 is a schematic diagram illustrating a standard fingerprint information entry process according to a second embodiment of the present invention;

fig. 12 is a flowchart illustrating a specific fingerprint unlocking process of a display screen according to a second embodiment of the present invention;

fig. 13 is a schematic structural diagram of a dual-screen terminal according to a third embodiment of the present invention.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in itself. Thus, "module", "component" or "unit" may be used mixedly.

The terminal may be implemented in various forms. For example, the terminal described in the present invention may include a mobile terminal such as a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a Personal Digital Assistant (PDA), a Portable Media Player (PMP), a navigation device, a wearable device, a smart band, a pedometer, and the like, and a fixed terminal such as a Digital TV, a desktop computer, and the like.

The following description will be given by way of example of a mobile terminal, and it will be understood by those skilled in the art that the construction according to the embodiment of the present invention can be applied to a fixed type terminal, in addition to elements particularly used for mobile purposes.

Referring to fig. 2, which is a schematic diagram of a hardware structure of a mobile terminal for implementing various embodiments of the present invention, the mobile terminal 200 may include: an RF (Radio Frequency) unit 201, a WiFi module 202, an audio output unit 203, an a/V (audio/video) input unit 204, a sensor 205, a display unit 206, a user input unit 207, an interface unit 208, a memory 209, a processor 210, and a power supply 211. Those skilled in the art will appreciate that the mobile terminal architecture shown in fig. 2 is not intended to be limiting of mobile terminals, and that a mobile terminal may include more or fewer components than shown, or some components may be combined, or a different arrangement of components.

The following describes each component of the mobile terminal in detail with reference to fig. 2:

the radio frequency unit 201 may be configured to receive and transmit signals during information transmission and reception or during a call, and specifically, receive downlink information of a base station and then process the downlink information to the processor 210; in addition, the uplink data is transmitted to the base station. In general, radio frequency unit 201 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 201 can also communicate with a network and other devices through wireless communication. The wireless communication may use any communication standard or protocol, including but not limited to GSM (Global System for Mobile communications), GPRS (General Packet Radio Service), CDMA2000(Code Division Multiple Access 2000), WCDMA (Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access), FDD-LTE (Frequency Division duplex-Long Term Evolution), and TDD-LTE (Time Division duplex-Long Term Evolution).

WiFi belongs to short-distance wireless transmission technology, and the mobile terminal can help a user to receive and send e-mails, browse webpages, access streaming media and the like through the WiFi module 202, and provides wireless broadband Internet access for the user. Although fig. 2 shows the WiFi module 202, it is understood that it does not belong to the essential constitution of the mobile terminal, and may be omitted entirely as needed within the scope not changing the essence of the invention.

The audio output unit 203 may convert audio data received by the radio frequency unit 201 or the WiFi module 202 or stored in the memory 209 into an audio signal and output as sound when the mobile terminal 200 is in a call signal reception mode, a call mode, a recording mode, a voice recognition mode, a broadcast reception mode, or the like. Also, the audio output unit 203 may also provide audio output related to a specific function performed by the mobile terminal 200 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 203 may include a speaker, a buzzer, and the like.

The a/V input unit 204 is used to receive audio or video signals. The a/V input Unit 204 may include a Graphics Processing Unit (GPU) 2041 and a microphone 2042, the Graphics processor 2041 Processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 206. The image frames processed by the graphic processor 2041 may be stored in the memory 209 (or other storage medium) or transmitted via the radio frequency unit 201 or the WiFi module 202. The microphone 2042 can receive sounds (audio data) via the microphone 2042 in a phone call mode, a recording mode, a voice recognition mode, or the like, and can process such sounds into audio data. The processed audio (voice) data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 201 in case of a phone call mode. The microphone 2042 may implement various types of noise cancellation (or suppression) algorithms to cancel (or suppress) noise or interference generated during reception and transmission of audio signals.

The mobile terminal 200 also includes at least one sensor 205, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 2061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 2061 and/or the backlight when the mobile terminal 200 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when stationary, and can be used for applications of recognizing the posture of a mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer and tapping), and the like; as for other sensors such as a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be configured on the mobile phone, further description is omitted here.

The display unit 206 is used to display information input by the user or information provided to the user. The Display unit 206 may include a Display panel 2061, and the Display panel 2061 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 207 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the mobile terminal. Specifically, the user input unit 207 may include a touch panel 2071 and other input devices 2072. The touch panel 2071, also referred to as a touch screen, may collect touch operations of a user (e.g., operations of the user on or near the touch panel 2071 by using any suitable object or accessory such as a finger or a stylus pen) thereon or nearby, and drive corresponding connection devices according to a preset program. The touch panel 2071 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 210, and can receive and execute commands sent by the processor 210. In addition, the touch panel 2071 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 207 may include other input devices 2072 in addition to the touch panel 2071. In particular, the other input devices 2072 may include, but are not limited to, one or more of a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like, which are not limited to these specific examples.

Further, the touch panel 2071 may cover the display panel 2061, and when the touch panel 2071 detects a touch operation on or near the touch panel 2071, the touch panel is transmitted to the processor 210 to determine the type of the touch event, and then the processor 210 provides a corresponding visual output on the display panel 2061 according to the type of the touch event. Although the touch panel 2071 and the display panel 2061 are shown as two separate components in fig. 2 to implement the input and output functions of the mobile terminal, in some embodiments, the touch panel 2071 and the display panel 2061 may be integrated to implement the input and output functions of the mobile terminal, and are not limited herein.

The interface unit 208 serves as an interface through which at least one external device is connected to the mobile terminal 200. 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 208 may be used to receive input (e.g., data information, power, etc.) from external devices and transmit the received input to one or more elements within the mobile terminal 200 or may be used to transmit data between the mobile terminal 200 and external devices.

The memory 209 may be used to store software programs as well as various data. The memory 209 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 209 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 210 is a control center of the mobile terminal, connects various parts of the entire mobile terminal using various interfaces and lines, and performs various functions of the mobile terminal and processes data by operating or executing software programs and/or modules stored in the memory 209 and calling data stored in the memory 209, thereby performing overall monitoring of the mobile terminal. Processor 210 may include one or more processing units; preferably, the processor 210 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 will be appreciated that the modem processor described above may not be integrated into the processor 210.

The mobile terminal 200 may further include a power source 211 (e.g., a battery) for supplying power to various components, and preferably, the power source 211 may be logically connected to the processor 210 through a power management system, so as to manage charging, discharging, and power consumption management functions through the power management system.

Although not shown in fig. 2, the mobile terminal 200 may further include a bluetooth module or the like, which is not described in detail herein.

Based on the hardware structure of the mobile terminal, the invention provides various embodiments of the method.

First embodiment

In order to ensure that a user can accurately unlock a display screen to be unlocked through a fingerprint when using the dual-screen terminal, the embodiment provides a display screen fingerprint unlocking method, and the method is applied to the dual-screen terminal. Referring to fig. 3, fig. 3 is a basic flowchart of a display screen fingerprint unlocking method provided in this embodiment, and includes:

s301: receiving fingerprint information input from the outside of the terminal;

the dual-screen terminal described in this embodiment should have a fingerprint recognition module 14. The fingerprint identification module can acquire fingerprint information of a user finger when the user finger is covered on the fingerprint identification module. The double-sided screen terminal in this embodiment further includes a first display screen disposed on the front side of the terminal and a second display screen disposed on the back side of the terminal.

In this embodiment, the fingerprint identification module 14 of the dual-screen terminal may be disposed on the front surface of the terminal, for example, as shown in fig. 4. The fingerprint recognition module 14 of the dual-screen terminal may also be disposed on the back side of the terminal, such as shown in fig. 5. In this embodiment, no mandatory requirement is made on the installation position of the fingerprint identification module.

S302: matching the fingerprint information with standard fingerprint information which is input in the terminal;

in this embodiment, as in the existing fingerprint unlocking manner, the terminal needs to enter the user fingerprint in advance as standard fingerprint information. Only in this way, in the user unlocking process, the terminal can determine whether the current operator is the actual authorized operator of the terminal or not by comparing the currently received fingerprint information with the previously entered standard fingerprint information.

In the actual comparison process, the terminal can compare the currently acquired fingerprint information with the standard fingerprint information recorded in the terminal in sequence, and after the standard fingerprint information matched with the fingerprint information is found, the current operator can be considered to be authorized, the unlocking operation is not dangerous operation, and the terminal can execute subsequent operation steps. If the standard fingerprint information matched with the fingerprint information is not found, namely the current operator is not authorized, the unlocking operation may be dangerous operation, and the terminal can terminate the whole fingerprint unlocking process.

S303: when the matching is successful, determining a corresponding hand of the fingerprint information;

it should be appreciated that, for a person, the fingerprints between each finger of the person are not identical. That is, a finger can only uniquely correspond to a kind of fingerprint information. Thus, when a fingerprint is acquired, the fingerprint must be unique to a certain finger of the user. Thus, for a fingerprint, which can only be a fingerprint corresponding to one hand, it is not possible to have a fingerprint corresponding to both the left hand and the right hand.

It should be understood that, in the present embodiment, when the terminal enters the standard fingerprint information, the terminal will acquire whether the hand used by the user to input the fingerprint is the left hand or the right hand. And when the currently acquired fingerprint information is matched with the standard fingerprint information recorded in the terminal, determining whether the currently acquired fingerprint information corresponds to the left hand or the right hand of the user according to whether the standard fingerprint information matched with the acquired fingerprint information corresponds to the left hand or the right hand of the user. For example, the currently acquired fingerprint information matches the standard fingerprint information a, and the standard fingerprint information a is a right-hand fingerprint corresponding to the right hand of the user, so that it can be determined that the corresponding hand of the currently acquired fingerprint information is the right hand.

When the fingerprint identification module acquires a fingerprint input from the outside of the terminal, the fingerprint identification module substantially acquires image information related to the fingerprint. When the terminal compares the currently acquired fingerprint information with the standard fingerprint information, a feasible method may be shown in fig. 6, and includes:

s601: finding relevant fingerprint features from the fingerprint image;

it should be understood that fingerprint features include both global features and local features. Gross features are those features that are directly observable to the human eye and include three basic grain patterns (i.e., circular, arcuate, and spiral). The local features include nodes in the fingerprint pattern, connection relation between the nodes, grain direction, number and the like.

The nodes refer to each joint point in the texture, and may be referred to as a center point, a bifurcation point, a termination point, etc., as shown in fig. 7. Wherein, the central point is a point located at the progressive center of the fingerprint lines; the bifurcation point is a position point where one line is divided into two or more lines; the termination point is a position point at which one line is terminated.

S602: converting the fingerprint characteristics into characteristic data;

the terminal converts the fingerprint characteristics into corresponding computer data through modes such as modeling and the like. Generally, this strengthening is irreversible. I.e. can be converted from a fingerprint to feature data but not from feature data to a fingerprint. Because of the uniqueness of fingerprints, two different fingerprints will not produce the same feature data.

S603: carrying out fuzzy comparison on the characteristic data and standard fingerprint information, and calculating the similarity between the characteristic data and the standard fingerprint information;

it should be understood that, in this embodiment, the standard fingerprint information may be fingerprint image information, and may also be feature data corresponding to the standard fingerprint.

In practical application, the fingerprint image is considered to belong to personal privacy with multiple places, and the fingerprint image cannot be directly stored. Many biometric technology companies do not store images of fingerprints directly, but store feature data corresponding to standard fingerprints.

In step S603 of this embodiment, the standard fingerprint information is the feature data corresponding to the standard fingerprint.

S604: and determining whether the currently acquired fingerprint information is matched with the standard fingerprint information according to the size relation between the similarity and a preset similarity threshold.

Specifically, when the similarity is greater than a preset similarity threshold, it can be determined that the currently acquired fingerprint information matches the standard fingerprint information; otherwise, the currently acquired fingerprint information can be judged to be not matched with the standard fingerprint information. For example, if the similarity threshold is set to 99%, when the calculated similarity is greater than 99%, it may be determined that the currently acquired fingerprint information matches the standard fingerprint information.

In this embodiment, when the standard fingerprint information is entered into the dual-screen terminal, a feasible way of recording whether the standard fingerprint information corresponds to a left hand or a right hand may be shown in fig. 8, which includes:

s801: and detecting the grain direction of the standard fingerprint information during recording.

It should be understood that, in this embodiment, the terminal can extract the grain direction of the fingerprint from the image information related to the fingerprint of the finger.

S802: and determining and recording the corresponding hand of the standard fingerprint information according to the grain direction.

For fingerprints, the texture of the center point of the left-handed fingerprint generally extends to the left and downward, and the texture of the center point of the right-handed fingerprint generally extends to the right and downward. Therefore, in the present embodiment, the corresponding hand of the standard fingerprint information can be determined by the grain direction of the grain where the central point is located. For example, referring to the fingerprint shown in fig. 7, the fingerprint having its center point extending to the lower left is determined to be a left-handed fingerprint. When the fingerprint is recorded as a standard fingerprint, the corresponding hand of the terminal capable of recording the standard fingerprint information is the left hand.

In addition, when a user inputs a corresponding standard fingerprint by using the terminal, the user is influenced by the use habit of the user, when the user inputs the fingerprint, a certain inclination angle usually exists between the finger and the fingerprint identification module, and when the user inputs the standard fingerprint, the user usually holds the terminal in a mode that the front side of the terminal faces forward and inputs the standard fingerprint because the user needs to receive related prompt information given by the terminal at any time. This results in the user having to tilt the finger to the left of the fingerprint recognition module when entering a standard fingerprint with the left hand, as shown, for example, in fig. 9. When a standard fingerprint is input with the right hand, the finger is tilted to the right compared to the fingerprint recognition module, as shown, for example, in fig. 10. At this time, the corresponding hand of the standard fingerprint information can be determined by detecting the direction of the center of the circle of the grain above the central point. For example, referring to the fingerprint shown in fig. 7, the direction of the center of the line in the region above the center point corresponds to the lower left, so that when the fingerprint is recorded as a standard fingerprint, the corresponding hand in which the terminal can record standard fingerprint information is the left hand.

In this embodiment, when the standard fingerprint information is entered into the dual-screen terminal, a feasible way of recording the left hand or the right hand corresponding to the standard fingerprint information is as follows:

after entering the standard fingerprint information, a corresponding hand selection interface of the standard fingerprint information is provided and displayed, and a user selects whether the fingerprint just entered corresponds to a left-handed or a right-handed one. And the terminal records the corresponding hand of the standard fingerprint information selected by the user according to the corresponding hand selection information received from the corresponding hand selection interface.

It should be understood that the two schemes described above may be used in combination. The terminal can firstly and automatically determine whether the user inputs the standard fingerprint by the left hand or the right hand according to the grain information in the input standard fingerprint, so that the accurate fingerprint information is successfully input, and a confirmation window is displayed to allow the user to confirm whether the hand inputting the fingerprint is the one automatically confirmed by the terminal.

It should be appreciated that if the corresponding hand of the standard fingerprint automatically recognized by the terminal does not coincide with the user's confirmation, then one solution is subject to user confirmation. Yet another possible solution is: and extracting richer fingerprint lines from the fingerprint image of the user again, recalculating to determine a corresponding hand when the user inputs the fingerprint according to the line information, and if the recalculated result is consistent with the original result, taking the calculated corresponding hand as the standard. For example, if the terminal calculates that the user inputs the standard fingerprint with the left hand and the user selects the right hand, the grain direction of the grain where the central point is located and the grain direction of the grain in the region above the central point are extracted from the fingerprint image again, the hand where the user inputs the standard fingerprint is calculated again, if the calculated hand is still the left hand, the user input is considered to be wrong, and the left hand is recorded as the corresponding hand of the standard fingerprint information.

In this embodiment, in a manner of extracting more abundant fingerprint lines from the fingerprint image of the user again and recalculating and determining the corresponding hand when the user inputs the fingerprint according to the line information, if the recalculated result is consistent with the original result, the terminal may further display the confirmation window again for the user to confirm, and at this time, if the user selection is still inconsistent with the terminal calculation result, the user selection is based on.

S304: detecting the inclination direction of the fingerprint information when the fingerprint information is input;

in this embodiment, when a user holds the terminal, the fingers are located on two sides of the terminal, and the fingerprint identification module is located on the terminal, so that a certain inclination angle is formed between the user and the fingerprint identification module when the user inputs a fingerprint. In this embodiment, the tilt angle does not need to be calculated, and the tilt direction of the finger only needs to be found when the tilt direction is input.

Specifically, the terminal can determine the inclination direction of the fingerprint information during input by detecting the grain direction in the fingerprint information and then according to the grain direction. For example, the oblique direction during input may be determined by comparing the grain direction with the grain direction set in the forward direction.

In this embodiment, the terminal may also determine the tilt direction of the fingerprint information during input by detecting the fingerprint profile of the currently input fingerprint information. For example, if the fingertip portion is found to be located on the left side of the fingerprint recognition module by the contour, it can be determined that the tilt direction at the time of input is a rightward tilt.

S305: and unlocking the corresponding display screen according to the inclination direction and the preset display screen unlocking strategy of the corresponding hand of the fingerprint information.

In this embodiment, if the corresponding hand of the currently acquired fingerprint information is the left hand and the tilt direction is leftward tilt, the first display screen is unlocked; and if the inclination direction is rightward inclination, unlocking the second display screen.

If the corresponding hand of the currently acquired fingerprint information is the right hand and the inclination direction is rightward inclination, unlocking the first display screen; and if the inclination direction is leftward inclination, unlocking the second display screen.

It should be noted that, in the present embodiment, the inclination direction is relative to the fingerprint recognition module. For example, the fingerprint recognition module is arranged on the back of the terminal, and the tilt direction when the user inputs the standard fingerprint by the left hand is defined as the left tilt direction corresponding to the fingerprint recognition module. Then, when the user normally holds the terminal to unlock the first display screen, the left finger touches the fingerprint identification module, and the inclination direction of the fingerprint identification module is inclined to the left relative to the fingerprint identification module; when normally holding the terminal unblock second display screen, the user upset terminal, fingerprint identification module is just to the user this moment, and the left hand finger touches fingerprint identification module, and its incline direction for fingerprint identification module is right slope promptly.

It should be understood that, in the above example, if the fingerprint recognition module is disposed on the front of the terminal, the tilt direction when the user inputs the standard fingerprint with the left hand is still the left tilt direction corresponding to the fingerprint recognition module.

It should also be understood that, in the present embodiment, when the corresponding hand of the currently acquired fingerprint information is the right hand, the tilt direction when the standard fingerprint is input by the right hand of the user is also defined as the right tilt direction corresponding to the fingerprint identification module.

In this embodiment, the terminal confirms the corresponding display screen that needs to be unlocked, and in order to prevent the occurrence of the false unlocking situation, a display screen unlocking confirmation interface may be displayed in the display screen after the display screen is turned on. And then the user can completely unlock the display screen after confirming that the unlocking operation needs to be carried out on the display screen through the display screen unlocking confirmation interface.

For example, if the terminal determines that the display screen needing to be unlocked is the second display screen according to the inclination direction of the fingerprint identification module relative to the current fingerprint information input by the user, the terminal lights the second display screen, displays a confirmation window in the second display screen, and unlocks the second display screen after the user confirms to unlock the display screen through the confirmation window. It should be understood that the above-described embodiments,

in this embodiment, if the user denies that the unlocking operation needs to be performed on the display screen through the display screen unlocking confirmation interface, it indicates that the user may perform a misoperation. The display may be turned off at this point, or the display may be turned off and the other display unlocked.

It should be understood that, in the embodiment, the dual-sided screen terminal is provided with a display screen on the front and back of the terminal, respectively, and the structure thereof can be seen in fig. 2. At this time, the steps in the display screen fingerprint unlocking method provided in the first example in this market may be implemented by the terminal 200 having a dual-sided screen, and specifically, the steps may be implemented by storing one or more programs implementing the steps in the memory 209 of the terminal 200 and executing the programs by the processor 210.

According to the display screen fingerprint unlocking method provided by the embodiment, the fingerprint information input from the outside of the terminal is received, and the fingerprint information is matched with the standard fingerprint information recorded in the terminal. And determines whether the hand of the user inputting the fingerprint information is the left hand or the right hand when the matching is successful. In addition, the terminal can also detect the inclination direction of the fingerprint information relative to the fingerprint identification module when the fingerprint information is input. When the hand inputting the fingerprint information is a left hand, if the inclination direction is leftward, unlocking a first display screen on the front side of the terminal, and if the inclination direction is rightward, unlocking a second display screen on the back side of the terminal; and when the hand for inputting the fingerprint information is the right hand, if the inclination direction is right, unlocking the first display screen positioned on the front side of the terminal, and if the inclination direction is left, unlocking the second display screen positioned on the back side of the terminal. Therefore, when the user carries out display screen unlocking operation on the double-sided screen terminal through the fingerprint, the terminal can judge whether the user carries out fingerprint input through the left hand or the right hand according to the fingerprint input by the user, and the display screen which the user wants to unlock at present is judged according to the inclination direction of the fingerprint input by the user at present by combining ergonomics. The problem that the display screen which is required to be unlocked by a user cannot be unlocked through the fingerprint unlocking function at present is solved. Meanwhile, in the whole fingerprint unlocking process, a user only needs to input fingerprint information without performing other operations, the operation process is simple, the method is very friendly to the user, and the user experience is high.

Second embodiment

This embodiment is further exemplified by taking a specific display screen fingerprint unlocking process as an example on the basis of the first embodiment.

It should be understood that, in order to ensure that the terminal can implement the fingerprint unlocking function, some standard fingerprint information must be input into the terminal before the terminal uses the fingerprint unlocking function for the first time. The fingerprint corresponding to the standard fingerprint information is an authorized fingerprint, that is, a user authorized to input the fingerprint can unlock the terminal.

Since the dual-screen terminal is structurally different from a conventional single-screen terminal, in this embodiment, it is necessary to determine whether the standard fingerprint information is input by the left hand or the right hand when the standard fingerprint information is input. Specifically, as shown in fig. 11, fig. 11 is a schematic diagram of a standard fingerprint information entry process according to a second embodiment of the present invention, where the process includes:

s1101: the fingerprint identification module collects the fingerprint pattern of the current input fingerprint of the user;

when the terminal is typing in fingerprint information, the user needs to place the finger on the fingerprint identification module, so that the fingerprint identification module can record the fingerprint image of the finger and transmit the fingerprint image to the corresponding fingerprint image processor for processing.

S1102: extracting information of a central point, a bifurcation point, a termination point and grain direction information from the fingerprint pattern;

after the terminal collects the fingerprint pattern, the terminal can find out the related central point, bifurcation point and termination point from the fingerprint pattern through the image recognition technology and record the relative central point, bifurcation point and termination point.

S1103: converting the information of the central point, the bifurcation point and the termination point into characteristic data and storing the characteristic data as standard fingerprint information;

after the central point, the bifurcation point and the termination point are found, the terminal can convert the information of the central point, the bifurcation point and the termination point into characteristic data through the established data processing model. The transformation is irreversible, i.e. the fingerprint pattern cannot be deduced in reverse from the characteristic data. Therefore, the security of the user private information, namely the fingerprint, is fully ensured.

It should be understood that there are many data processing models for the relevant fingerprint information, and the details are not repeated here.

S1104: and determining whether the left hand or the right hand is adopted when the user inputs the fingerprint according to the grain direction, and storing the left hand or the right hand in association with the standard fingerprint information.

In this embodiment, whether the user inputs the fingerprint may be determined according to the grain direction of the grain where the center point is located. If the line of the central point is extended towards the left lower side, recording and storing the left hand corresponding to the standard fingerprint information recorded at this time; if the line of the central point is extended towards the lower right, recording and storing the standard fingerprint information recorded at this time corresponding to the right hand.

In this embodiment, whether the user inputs the fingerprint may be determined according to the grain direction of the grain in the region above the central point. If the center direction of the grain above the central point corresponds to the left lower side, recording and storing the left hand corresponding to the input standard fingerprint information; and if the direction of the center of the circle of the grain above the central point corresponds to the lower right side, recording and storing the standard fingerprint information recorded at this time corresponding to the right hand.

After the standard fingerprint is input, the user can unlock the display screen of the double-sided screen terminal through the fingerprint unlocking function.

Specifically, referring to fig. 12, fig. 12 is a specific schematic view of a display screen fingerprint unlocking process according to a second embodiment of the present invention, including:

s1201: the fingerprint identification module collects the fingerprint pattern of the current input fingerprint of the user;

s1202: extracting information of a central point, a bifurcation point and a termination point from the fingerprint pattern and an inclined direction relative to the fingerprint identification module when the fingerprint is input;

it should be understood that the process of extracting the information of the center point, the branch point and the end point by the terminal here can be completed before or after the inclination direction of the fingerprint identification module when the input fingerprint is acquired, and there is no necessary time sequence relationship between the two processes.

In this embodiment, the terminal may determine the tilt direction of the input fingerprint relative to the fingerprint identification module through the grain direction in the fingerprint information, or determine the tilt direction of the input fingerprint relative to the fingerprint identification module according to the fingerprint profile.

S1203: converting the information of the central point, the bifurcation point and the termination point into characteristic data;

it should be understood that, in the above steps S1201 to S1203, the process and manner of obtaining the feature data are consistent with the process and manner of obtaining the standard fingerprint information in fig. 11, and details are not repeated here.

S1204: comparing the characteristic data with standard fingerprint information stored in the terminal;

s1205: when standard fingerprint information matched with the characteristic data exists, acquiring corresponding hand information of the standard fingerprint information;

in this embodiment, when the feature data is compared with standard fingerprint information stored in the terminal, a similarity between the feature data and the stored standard fingerprint information can be calculated, and when one piece of standard fingerprint information with a similarity greater than a preset similarity threshold is found, it is determined that the detection is passed, and whether a hand corresponding to the standard fingerprint information stored in the terminal is a left hand or a right hand is obtained.

S1206: and determining a display screen to be unlocked according to the acquired tilt direction and the corresponding hand information, and unlocking the display screen.

After the known tilt direction and whether the fingerprint information corresponds to the left hand or the right hand, the corresponding display screen can be unlocked according to a preset display screen unlocking strategy.

Specifically, when the fingerprint information corresponds to a left hand and the inclination direction is leftward inclination, the first display screen is unlocked; unlocking the second display screen when the fingerprint information corresponds to the left hand and the inclination direction is rightward inclination; when the fingerprint information corresponds to the right hand and the inclination direction is rightward inclination, unlocking the first display screen; and unlocking the second display screen when the fingerprint information corresponds to the right hand and the inclination direction is leftward inclination.

According to the display screen fingerprint unlocking method provided by the embodiment, by combining the inclination direction when the fingerprint information is input and whether the input is left hand or right hand, when the hand inputting the fingerprint information is the left hand, if the inclination direction is left, the first display screen on the front side of the terminal is unlocked, and if the inclination direction is right, the second display screen on the back side of the terminal is unlocked; and when the hand for inputting the fingerprint information is the right hand, if the inclination direction is right, unlocking the first display screen positioned on the front side of the terminal, and if the inclination direction is left, unlocking the second display screen positioned on the back side of the terminal. The whole fingerprint unlocking process of the user is more consistent with ergonomics, and the problem that the display screen which the user wants to unlock cannot be unlocked through the fingerprint unlocking function at present is solved. Meanwhile, in the whole fingerprint unlocking process, a user only needs to input fingerprint information without performing other operations, the operation process is simple, the method is very friendly to the user, and the user experience is high.

Third embodiment

The present embodiment further provides a dual-screen terminal, as shown in fig. 13, which includes a processor 131, a memory 132, and a communication bus 133, where:

the communication bus 133 is used for realizing connection communication between the processor 131 and the memory 132;

the processor 131 is configured to execute one or more programs stored in the memory 132 to implement the steps of the display screen fingerprint unlocking method according to the first embodiment and/or the second embodiment.

It should be understood that the dual-screen terminal in this embodiment may be a mobile phone, an iPad, a microcomputer, or other terminal devices that are respectively provided with a display screen on the front and back of the terminal.

Meanwhile, the present embodiment also provides a computer-readable storage medium, such as a floppy disk, an optical disk, a hard disk, a flash memory, a U disk, a CF card, an SD card, an MMC card, etc., in which one or more programs for implementing the above steps are stored, and the one or more programs can be executed by one or more processors to implement the steps of the display screen fingerprint unlocking method according to the first embodiment and/or the second embodiment. And will not be described in detail herein.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. The display screen fingerprint unlocking method is applied to a double-sided screen terminal, the double-sided screen terminal comprises a first display screen arranged on the front side of the terminal and a second display screen arranged on the back side of the terminal, and the display screen fingerprint unlocking method comprises the following steps:

detecting the inclination direction of the fingerprint when the fingerprint information is input;

and unlocking the display screen corresponding to the unlocking strategy according to the inclination direction and the preset display screen unlocking strategy of the corresponding hand of the fingerprint information.

2. The method for fingerprint unlocking of a display screen according to claim 1, wherein unlocking the corresponding display screen according to the tilt direction and the preset display screen unlocking strategy of the corresponding hand of the fingerprint information comprises:

3. The display screen fingerprint unlocking method of claim 1, wherein the detecting of the tilt direction of the fingerprint information at the time of input comprises:

detecting the grain direction in the fingerprint information;

4. The display screen fingerprint unlocking method of claim 1, wherein the detecting of the tilt direction of the fingerprint information at the time of input comprises:

detecting a fingerprint profile in the fingerprint information;

5. The display screen fingerprint unlocking method according to any one of claims 1 to 4, wherein the method further comprises:

6. The display screen fingerprint unlocking method of claim 5, wherein the recording of the corresponding hand of the standard fingerprint information comprises:

7. The display screen fingerprint unlocking method of claim 5, wherein the recording of the corresponding hand of the standard fingerprint information comprises:

8. The display screen fingerprint unlocking method of any one of claims 1 to 4, wherein the unlocking the corresponding display screen comprises:

9. A double-sided screen terminal is characterized by comprising a processor, a memory and a communication bus;

the processor is configured to execute one or more programs stored in the memory to implement the steps of the display screen fingerprint unlocking method according to any one of claims 1 to 8.

10. A computer-readable storage medium storing one or more programs, the one or more programs being executable by one or more processors to perform the steps of the display screen fingerprint unlocking method according to any one of claims 1 to 8.