CN107832689B - Fingerprint identification method and mobile terminal - Google Patents
Fingerprint identification method and mobile terminal Download PDFInfo
- Publication number
- CN107832689B CN107832689B CN201711033477.XA CN201711033477A CN107832689B CN 107832689 B CN107832689 B CN 107832689B CN 201711033477 A CN201711033477 A CN 201711033477A CN 107832689 B CN107832689 B CN 107832689B
- Authority
- CN
- China
- Prior art keywords
- driving voltage
- screen
- brightness
- target
- mobile terminal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1318—Sensors therefor using electro-optical elements or layers, e.g. electroluminescent sensing
Abstract
The invention provides a fingerprint identification method and a mobile terminal, and solves the problem that the fingerprint identification rate is reduced due to the influence of some factors on the conventional photoelectric fingerprint screen. The method of the invention comprises the following steps: if a triggering instruction of photoelectric fingerprint identification is received, brightness attenuation information corresponding to the current screen brightness is obtained; determining a target driving voltage of the screen according to the brightness attenuation information; adjusting the screen brightness of the mobile terminal according to the target driving voltage; and after the screen brightness adjustment is finished, fingerprint acquisition is carried out. The invention ensures the screen brightness when fingerprint collection is carried out, thereby effectively ensuring the successful probability of fingerprint identification.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a fingerprint identification method and a mobile terminal.
Background
At present, with the progress of science and technology, a technology for fingerprint identification by adopting a photoelectric fingerprint screen appears. In the photoelectric fingerprint identification technology, a fingerprint sensor is embedded behind a screen, and the fingerprint sensor acquires fingerprint information by collecting screen light reflected by a fingerprint to perform fingerprint identification.
The photoelectric fingerprint identification technology needs screen luminescence, the current photoelectric fingerprint identification screens are screens made of organic luminescent materials, the organic materials are influenced by some factors, and the brightness and the chromaticity of the screens are obviously attenuated, so that the fingerprint identification rate is influenced.
Disclosure of Invention
The embodiment of the invention provides a fingerprint identification method and a mobile terminal, and aims to solve the problem that the existing photoelectric fingerprint screen is influenced by some factors and can reduce the fingerprint identification rate.
In a first aspect, an embodiment of the present invention provides a fingerprint identification method, applied to a mobile terminal, including:
if a triggering instruction of photoelectric fingerprint identification is received, brightness attenuation information corresponding to the current screen brightness is obtained;
determining a target driving voltage of the screen according to the brightness attenuation information;
adjusting the screen brightness of the mobile terminal according to the target driving voltage;
and after the screen brightness adjustment is finished, fingerprint acquisition is carried out.
In a second aspect, an embodiment of the present invention provides a mobile terminal, including:
the acquisition module is used for acquiring brightness attenuation information corresponding to the current screen brightness if a triggering instruction of photoelectric fingerprint identification is received;
the determining module is used for determining the target driving voltage of the screen according to the brightness attenuation information;
the adjusting module is used for adjusting the screen brightness of the mobile terminal according to the target driving voltage;
and the acquisition module is used for acquiring fingerprints after the screen brightness is adjusted.
In a third aspect, an embodiment of the present invention further provides a mobile terminal, including: a memory, a processor and a computer program stored on the memory and executable on the processor, which computer program, when executed by the processor, carries out the steps of the fingerprint recognition method as described above.
In a fourth aspect, the embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the fingerprint identification method as described above.
In the embodiment of the invention, when a triggering instruction of photoelectric fingerprint identification is received, brightness attenuation information corresponding to the current screen brightness is obtained, the target driving voltage of the screen is determined according to the brightness attenuation information, and the screen brightness of the mobile terminal is adjusted according to the target driving voltage, so that the screen brightness during fingerprint acquisition is ensured, and the fingerprint identification rate is further effectively ensured.
Drawings
FIG. 1 is a flow chart of a fingerprint identification method according to an embodiment of the present invention;
FIG. 2 is a diagram illustrating the relationship between screen brightness and temperature according to an embodiment of the present invention;
FIG. 3 is a diagram illustrating the relationship between the screen brightness and the usage duration according to an embodiment of the present invention;
fig. 4 is a block diagram of a mobile terminal according to an embodiment of the present invention;
fig. 5 is a second block diagram of a mobile terminal according to the embodiment of the present invention;
fig. 6 is a block diagram of a mobile terminal according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 invention.
An embodiment of the present invention provides a fingerprint identification method, which is applied to a mobile terminal, and as shown in fig. 1, the fingerprint identification method includes:
step 101: and if a triggering instruction of photoelectric fingerprint identification is received, acquiring brightness attenuation information corresponding to the current screen brightness.
The screen in the embodiment of the invention is a photoelectric fingerprint screen, the photoelectric fingerprint is acquired based on screen light reflected by a fingerprint, and the triggering instruction can specifically detect that a finger is pressed on a fingerprint sensing area.
The brightness decay information may specifically include a target ambient temperature corresponding to the current screen brightness and a current continuous lighting time of the screen.
By acquiring the brightness attenuation information, the screen brightness is adjusted conveniently according to the brightness attenuation information, and the screen brightness during fingerprint collection is ensured.
Step 102: and determining the target driving voltage of the screen according to the brightness attenuation information.
According to the embodiment of the invention, the target driving voltage of the screen can be determined according to the brightness attenuation information when the brightness attenuation information meets the preset condition influencing the photoelectric fingerprint identification. If the environment temperature is judged to reach the preset temperature threshold value influencing the photoelectric fingerprint identification or the continuous lighting time of the screen is judged to reach the preset time threshold value influencing the photoelectric fingerprint identification, if the brightness attenuation information does not meet the preset condition influencing the photoelectric fingerprint identification, the fingerprint is directly collected.
Specifically, the target driving voltage corresponding to the brightness decay information may be determined according to a correspondence relationship between the brightness decay information and the driving voltage, which is established in advance.
Here, the target driving voltage is determined according to the luminance decay information, so that the luminance of the screen can be adjusted according to the target driving voltage.
Step 103: and adjusting the screen brightness of the mobile terminal according to the target driving voltage.
Specifically, according to the target driving voltage, determining a target register parameter corresponding to the target driving voltage; sending the target register parameter to a driving Integrated Circuit (IC); and controlling the driving IC to adjust the driving voltage of the screen to the target driving voltage according to the target register parameter.
In the embodiment of the present invention, a corresponding relationship between the driving voltage and the register parameter may be pre-established, for example, when the driving voltage is 4.5V, the corresponding register parameter is 05h, when the driving voltage is 4.4V, the corresponding register parameter is 04h, when the driving voltage is 4.3V, the corresponding register parameter is 03h, when the driving voltage is 4.2V, the corresponding register parameter is 02h, when the driving voltage is 4.1V, the corresponding register parameter is 01h, when the driving voltage is 4.0V, the corresponding register parameter is 00h, and the like. Assuming that the target driving voltage is 4.2V, the corresponding register parameter is 02h according to the above correspondence, and the 02h is sent to the driving IC through the transmission interface, which may be specifically the MIPI interface of the mobile industry processor, and the driving voltage is adjusted according to the register parameter by the driving IC.
Step 104: and after the screen brightness adjustment is finished, fingerprint acquisition is carried out.
Before fingerprint collection is carried out, the screen brightness is adjusted, the problem that the current screen brightness influences fingerprint identification is avoided, and therefore the fingerprint identification rate is improved.
As an optional implementation manner, the step 101 includes:
acquiring a target environment temperature corresponding to the current screen brightness;
wherein the brightness decay information includes the target ambient temperature.
The target ambient temperature is obtained through the temperature sensor, and when the situation that the finger of the user presses the fingerprint sensing area is detected, the ambient temperature is collected, specifically, whether the finger of the user presses the fingerprint sensing area can be detected through a polling method or an interruption method.
At this time, the step of determining the target driving voltage of the screen according to the brightness decay information includes:
and determining a target driving voltage corresponding to the target ambient temperature according to a pre-established corresponding relation between the ambient temperature and the driving voltage.
And if the target environment temperature reaches a preset temperature which influences photoelectric fingerprint identification, determining a target driving voltage corresponding to the target environment temperature according to a pre-established corresponding relation between the environment temperature and the driving voltage, and otherwise, directly carrying out fingerprint acquisition.
In the embodiment of the present invention, when the temperature of the organic light emitting material is decreased, since the required driving voltage is increased, as shown in fig. 2, the screen brightness is decreased based on the original driving voltage, and when the temperature is decreased to a certain temperature, the brightness tends to be stable.
According to the used luminescent material, the voltage value required for the brightness to reach the target value and the required brightness value at different temperatures can be measured through experiments and stored. For example, most of the currently used screens are organic light emitting diode OLED screens, the brightness is controlled by a negative voltage ELVSS, the voltage is about-2.6V at a normal temperature of 20 degrees celsius, assuming that the brightness is 400nit, the brightness is measured to have 10% attenuation at a low temperature of-15 degrees celsius, which is only about 360nit, and at this time, if the brightness value of the target value of 400nit is to be reached, the voltage of ELVSS needs to be adjusted to about-3V. According to the experimental data, the corresponding relation between each temperature value in the preset temperature section and the driving voltage can be obtained, so that the subsequent query can be carried out according to the corresponding relation, and the preset temperature end can be specifically 37-20 degrees.
In the implementation mode, according to the pre-established corresponding relation between the environmental temperature and the driving voltage, the target driving voltage corresponding to the target environmental temperature is determined, the screen brightness is adjusted according to the target driving voltage, and the brightness of the screen during fingerprint acquisition is kept, so that the fingerprint identification rate is effectively guaranteed not to be influenced by a low-temperature environment.
As another optional implementation manner, the step 101 includes:
acquiring the current continuous lighting time of a screen;
wherein the brightness decay information includes a current continuous lighting time of the screen.
The current continuous lighting time of the screen may be specifically a time when the screen is in a lighting state in a time period from a preset time to a current time of the mobile terminal, and the preset time may be specifically a factory time of the mobile terminal.
Specifically, the mobile terminal may count when detecting that the screen is in the lighting state through a software or hardware manner, and record the total duration of the screen in the lighting state in the time period.
At this time, the step of determining the target driving voltage of the screen according to the brightness decay information includes:
and determining a target driving voltage corresponding to the current continuous lighting time of the screen according to a pre-established corresponding relation between the continuous lighting time and the driving voltage.
In the embodiment of the present invention, as shown in fig. 3, a relationship curve between the brightness and the usage time can be experimentally measured according to the luminescent material used by the screen, and the voltage value required for the brightness to reach the target value and reach the target value at different continuous lighting times is obtained according to the relationship curve and stored.
In fig. 3, the vertical axis represents screen brightness, and the horizontal axis represents usage time in hours. If 250 hours are used, the brightness decay is 4% as can be seen from the curve, and if the brightness of the currently used material is 400nit at the maximum, the current brightness value is 400 × 4% — 384 nit. The voltage value of ELVSS that needs to be set to increase the luminance to 400 can then be obtained through experimental measurements. Multiple measurements are made and the results are saved in the system.
In the implementation mode, according to the corresponding relation between the continuous lighting time and the driving voltage which is established in advance, the target driving voltage corresponding to the current continuous lighting time of the screen is determined, the brightness of the screen is adjusted according to the target driving voltage, and the brightness of the screen during fingerprint acquisition is kept, so that the fingerprint identification rate is effectively prevented from being influenced by the service life of the screen.
Further, after the step 104, the method further includes:
and restoring the driving voltage of the screen from the target driving voltage to the driving voltage before adjustment.
And after the fingerprint collection is finished, restoring the driving voltage of the screen to the driving voltage before adjustment from the target driving voltage, so that the screen brightness is restored to the screen brightness before adjustment, and the power consumption of the mobile terminal is reduced.
According to the fingerprint identification method, when a trigger instruction of photoelectric fingerprint identification is received, brightness attenuation information corresponding to the current screen brightness is obtained, the target driving voltage of the screen is determined according to the brightness attenuation information, the screen brightness of the mobile terminal is adjusted according to the target driving voltage, the screen brightness during fingerprint acquisition is guaranteed, and the fingerprint identification rate is further effectively guaranteed.
As shown in fig. 4, an embodiment of the present invention further provides a mobile terminal 400, including:
the obtaining module 401 is configured to obtain brightness attenuation information corresponding to current screen brightness if a trigger instruction of photoelectric fingerprint identification is received;
a determining module 402, configured to determine a target driving voltage of a screen according to the brightness decay information;
an adjusting module 403, configured to adjust the screen brightness of the mobile terminal according to the target driving voltage;
and an acquisition module 404, configured to perform fingerprint acquisition after the screen brightness adjustment is completed.
In the mobile terminal of the embodiment of the present invention, the obtaining module 401 is configured to obtain a target ambient temperature corresponding to a current screen brightness;
wherein the brightness decay information includes the target ambient temperature.
In the mobile terminal according to the embodiment of the present invention, the determining module 402 is configured to determine a target driving voltage corresponding to the target ambient temperature according to a pre-established correspondence between the ambient temperature and the driving voltage.
In the mobile terminal of the embodiment of the present invention, the obtaining module 401 is configured to obtain a current continuous lighting time of a screen;
wherein the brightness decay information includes a current continuous lighting time of the screen.
In the mobile terminal according to the embodiment of the present invention, the determining module 402 is configured to determine a target driving voltage corresponding to a current continuous lighting time of the screen according to a pre-established correspondence between the continuous lighting time and the driving voltage.
As shown in fig. 5, the adjusting module 403 of the mobile terminal according to the embodiment of the present invention includes:
a determining submodule 4031, configured to determine, according to the target driving voltage, a target register parameter corresponding to the target driving voltage;
a sending submodule 4032, configured to send the target register parameter to a driver integrated circuit IC;
and the control sub-module 4033 is configured to control the driving IC to adjust the driving voltage of the screen to a target driving voltage according to the target register parameter.
The mobile terminal of the embodiment of the invention also comprises:
a restoring module 405, configured to restore the driving voltage of the screen from the target driving voltage to the driving voltage before adjustment.
It should be noted that the mobile terminal is a mobile terminal corresponding to the above method embodiment, and all implementation manners in the above method embodiment are applicable to the embodiment of the mobile terminal, and the same technical effect can be achieved.
According to the mobile terminal provided by the embodiment of the invention, when a triggering instruction of photoelectric fingerprint identification is received, brightness attenuation information corresponding to the current screen brightness is obtained, the target driving voltage of the screen is determined according to the brightness attenuation information, and the screen brightness of the mobile terminal is adjusted according to the target driving voltage, so that the screen brightness during fingerprint acquisition is ensured, and the fingerprint identification rate is further effectively ensured.
Fig. 6 is a schematic diagram of a hardware structure of a mobile terminal for implementing various embodiments of the present invention, where the mobile terminal 600 includes, but is not limited to: a radio frequency unit 601, a network module 602, an audio output unit 603, an input unit 604, a sensor 605, a display unit 606, a user input unit 607, an interface unit 608, a memory 609, a processor 610, and a power supply 611. Those skilled in the art will appreciate that the mobile terminal architecture shown in fig. 6 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. In the embodiment of the present invention, the mobile terminal 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 processor 610 is configured to, if a trigger instruction for photoelectric fingerprint identification is received, obtain brightness attenuation information corresponding to current screen brightness; determining a target driving voltage of the screen according to the brightness attenuation information; adjusting the screen brightness of the mobile terminal according to the target driving voltage; and after the screen brightness adjustment is finished, fingerprint acquisition is carried out.
According to the technical scheme of the embodiment of the invention, when the triggering instruction of photoelectric fingerprint identification is received, the brightness attenuation information corresponding to the current screen brightness is obtained, the target driving voltage of the screen is determined according to the brightness attenuation information, and the screen brightness of the mobile terminal is adjusted according to the target driving voltage, so that the screen brightness during fingerprint acquisition is ensured, and the fingerprint identification rate is further effectively ensured.
It should be understood that, in the embodiment of the present invention, the radio frequency unit 601 may be used for receiving and sending signals during a message sending and receiving process or a call process, and specifically, receives downlink data from a base station and then processes the received downlink data to the processor 610; in addition, the uplink data is transmitted to the base station. In general, radio frequency unit 601 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. Further, the radio frequency unit 601 may also communicate with a network and other devices through a wireless communication system.
The mobile terminal provides the user with wireless broadband internet access through the network module 602, such as helping the user send and receive e-mails, browse webpages, access streaming media, and the like.
The audio output unit 603 may convert audio data received by the radio frequency unit 601 or the network module 602 or stored in the memory 609 into an audio signal and output as sound. Also, the audio output unit 603 may also provide audio output related to a specific function performed by the mobile terminal 600 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 603 includes a speaker, a buzzer, a receiver, and the like.
The input unit 604 is used to receive audio or video signals. The input Unit 604 may include a Graphics Processing Unit (GPU) 6041 and a microphone 6042, and the Graphics processor 6041 processes image data of a still picture or video obtained by an image capturing apparatus (such as a camera) in a video capture mode or an image capture mode. The processed image frames may be displayed on the display unit 606. The image frames processed by the graphic processor 6041 may be stored in the memory 609 (or other storage medium) or transmitted via the radio frequency unit 601 or the network module 602. The microphone 6042 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 601 in case of the phone call mode.
The mobile terminal 600 also includes at least one sensor 605, 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 6061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 6061 and/or the backlight when the mobile terminal 600 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), detect the magnitude and direction of gravity when stationary, and can be used to identify the posture of the mobile terminal (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), and vibration identification related functions (such as pedometer, tapping); the sensors 605 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.
The display unit 606 is used to display information input by the user or information provided to the user. The Display unit 606 may include a Display panel 6061, and the Display panel 6061 may be configured by a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.
The user input unit 607 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 607 includes a touch panel 6071 and other input devices 6072. Touch panel 6071, also referred to as a touch screen, may collect touch operations by a user on or near it (e.g., operations by a user on or near touch panel 6071 using a finger, stylus, or any suitable object or accessory). The touch panel 6071 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 610, receives a command from the processor 610, and executes the command. In addition, the touch panel 6071 can be implemented by various types such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. The user input unit 607 may include other input devices 6072 in addition to the touch panel 6071. Specifically, the other input devices 6072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a track ball, a mouse, and a joystick, which are not described herein again.
Further, the touch panel 6071 can be overlaid on the display panel 6061, and when the touch panel 6071 detects a touch operation on or near the touch panel 6071, the touch operation is transmitted to the processor 610 to determine the type of the touch event, and then the processor 610 provides a corresponding visual output on the display panel 6061 according to the type of the touch event. Although the touch panel 6071 and the display panel 6061 are shown in fig. 6 as two separate components to implement the input and output functions of the mobile terminal, in some embodiments, the touch panel 6071 and the display panel 6061 may be integrated to implement the input and output functions of the mobile terminal, and is not limited herein.
The interface unit 608 is an interface through which an external device is connected to the mobile terminal 600. 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 608 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 600 or may be used to transmit data between the mobile terminal 600 and external devices.
The memory 609 may be used to store software programs as well as various data. The memory 609 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required by 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 609 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 610 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 609 and calling data stored in the memory 609, thereby integrally monitoring the mobile terminal. Processor 610 may include one or more processing units; preferably, the processor 610 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 610.
The mobile terminal 600 may further include a power supply 611 (e.g., a battery) for supplying power to the various components, and preferably, the power supply 611 is logically connected to the processor 610 via a power management system, so that functions of managing charging, discharging, and power consumption are performed via the power management system.
In addition, the mobile terminal 600 includes some functional modules that are not shown, and are not described in detail herein.
Preferably, an embodiment of the present invention further provides a mobile terminal, which includes a processor, a memory, and a computer program stored in the memory and capable of running on the processor, where the computer program, when executed by the processor, implements each process of the foregoing fingerprint identification method embodiment, and can achieve the same technical effect, and details are not repeated here to avoid repetition.
The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the fingerprint identification method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
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.
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 (10)
1. A fingerprint identification method is applied to a mobile terminal, and is characterized by comprising the following steps:
if a triggering instruction of photoelectric fingerprint identification is received, brightness attenuation information corresponding to the current screen brightness is obtained;
determining a target driving voltage of the screen according to the brightness attenuation information;
adjusting the screen brightness of the mobile terminal according to the target driving voltage;
after the screen brightness adjustment is finished, fingerprint acquisition is carried out;
the step of obtaining brightness attenuation information corresponding to the current screen brightness includes:
acquiring a target environment temperature corresponding to the current screen brightness;
wherein the brightness decay information comprises the target ambient temperature;
the step of determining a target driving voltage of a screen according to the brightness decay information includes:
determining a target driving voltage corresponding to the target ambient temperature according to a pre-established corresponding relation between the ambient temperature and the driving voltage;
the step of adjusting the screen brightness of the mobile terminal according to the target driving voltage comprises:
determining a target register parameter corresponding to the target driving voltage according to the target driving voltage;
sending the target register parameter to a driving Integrated Circuit (IC);
and the control drive IC adjusts the drive voltage of the screen to the target drive voltage according to the target register parameter.
2. The fingerprint recognition method according to claim 1, wherein the step of obtaining brightness attenuation information corresponding to the current screen brightness comprises:
acquiring the current continuous lighting time of a screen;
wherein the brightness decay information includes a current continuous lighting time of the screen.
3. The fingerprint recognition method according to claim 2, wherein the step of determining the target driving voltage of the screen according to the brightness decay information comprises:
and determining a target driving voltage corresponding to the current continuous lighting time of the screen according to a pre-established corresponding relation between the continuous lighting time and the driving voltage.
4. The fingerprint recognition method according to claim 1, wherein after the step of performing fingerprint collection after the screen brightness adjustment is completed, the method further comprises:
and restoring the driving voltage of the screen from the target driving voltage to the driving voltage before adjustment.
5. A mobile terminal, comprising:
the acquisition module is used for acquiring brightness attenuation information corresponding to the current screen brightness if a triggering instruction of photoelectric fingerprint identification is received;
the determining module is used for determining the target driving voltage of the screen according to the brightness attenuation information;
the adjusting module is used for adjusting the screen brightness of the mobile terminal according to the target driving voltage;
the acquisition module is used for acquiring fingerprints after the screen brightness is adjusted; the acquisition module is used for acquiring a target environment temperature corresponding to the current screen brightness;
wherein the brightness decay information comprises the target ambient temperature;
the determining module is used for determining a target driving voltage corresponding to the target ambient temperature according to a pre-established corresponding relation between the ambient temperature and the driving voltage;
the adjustment module includes:
the determining submodule is used for determining a target register parameter corresponding to the target driving voltage according to the target driving voltage;
the sending submodule is used for sending the target register parameter to a driving Integrated Circuit (IC);
and the control submodule is used for controlling the drive IC to adjust the drive voltage of the screen to a target drive voltage according to the target register parameter.
6. The mobile terminal according to claim 5, wherein the obtaining module is configured to obtain a current continuous lighting time of the screen;
wherein the brightness decay information includes a current continuous lighting time of the screen.
7. The mobile terminal according to claim 5, wherein the determining module is configured to determine a target driving voltage corresponding to a current continuous lighting time of the screen according to a pre-established correspondence between the continuous lighting time and the driving voltage.
8. The mobile terminal of claim 5, further comprising:
and the restoring module is used for restoring the driving voltage of the screen from the target driving voltage to the driving voltage before adjustment.
9. A mobile terminal, comprising: memory, processor and computer program stored on the memory and executable on the processor, which computer program, when executed by the processor, carries out the steps of the fingerprint recognition method according to any one of claims 1 to 4.
10. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, carries out the steps of the fingerprint recognition method according to any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711033477.XA CN107832689B (en) | 2017-10-30 | 2017-10-30 | Fingerprint identification method and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711033477.XA CN107832689B (en) | 2017-10-30 | 2017-10-30 | Fingerprint identification method and mobile terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107832689A CN107832689A (en) | 2018-03-23 |
| CN107832689B true CN107832689B (en) | 2020-06-26 |
Family
ID=61649962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711033477.XA Active CN107832689B (en) | 2017-10-30 | 2017-10-30 | Fingerprint identification method and mobile terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107832689B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108881625B (en) | 2018-05-31 | 2020-09-29 | 北京小米移动软件有限公司 | Terminal device and sensing method and device |
| CN109145731B (en) * | 2018-07-16 | 2021-03-05 | 维沃移动通信有限公司 | Fingerprint identification method and device and mobile terminal |
| CN110059627A (en) * | 2019-04-18 | 2019-07-26 | 维沃移动通信有限公司 | A kind of display control method and terminal |
| WO2021042248A1 (en) * | 2019-09-02 | 2021-03-11 | 深圳市汇顶科技股份有限公司 | Fingerprint detection method and apparatus, and electronic device |
| CN110826438B (en) * | 2019-10-24 | 2023-08-29 | 维沃移动通信有限公司 | Display method and electronic equipment |
| CN111783747B (en) * | 2020-08-10 | 2024-02-20 | Oppo（重庆）智能科技有限公司 | Fingerprint acquisition method and device, storage medium and electronic equipment |
| CN114093323B (en) * | 2021-11-18 | 2023-01-06 | Oppo广东移动通信有限公司 | Screen control method and device, electronic equipment and storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106157929A (en) * | 2015-04-22 | 2016-11-23 | 上海和辉光电有限公司 | The adjustment system of brightness of display screen decay and luminance regulating method thereof |
| CN107134273A (en) * | 2017-07-17 | 2017-09-05 | 联想(北京)有限公司 | Luminance compensation method, device and terminal |
| CN107295195A (en) * | 2017-07-21 | 2017-10-24 | 维沃移动通信有限公司 | A kind of fingerprint identification method and mobile terminal |
-
2017
- 2017-10-30 CN CN201711033477.XA patent/CN107832689B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106157929A (en) * | 2015-04-22 | 2016-11-23 | 上海和辉光电有限公司 | The adjustment system of brightness of display screen decay and luminance regulating method thereof |
| CN107134273A (en) * | 2017-07-17 | 2017-09-05 | 联想(北京)有限公司 | Luminance compensation method, device and terminal |
| CN107295195A (en) * | 2017-07-21 | 2017-10-24 | 维沃移动通信有限公司 | A kind of fingerprint identification method and mobile terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107832689A (en) | 2018-03-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108427876B (en) | Fingerprint identification method and mobile terminal | |
| CN107832689B (en) | Fingerprint identification method and mobile terminal | |
| CN108845853B (en) | Application program starting method and mobile terminal | |
| CN109343759B (en) | Screen-turning display control method and terminal | |
| CN108491123B (en) | Method for adjusting application program icon and mobile terminal | |
| CN107196363B (en) | Method for adjusting charging current, terminal and computer readable storage medium | |
| CN111142991A (en) | Application function page display method and electronic equipment | |
| CN108762877B (en) | Control method of mobile terminal interface and mobile terminal | |
| CN108958593B (en) | Method for determining communication object and mobile terminal | |
| CN109145731B (en) | Fingerprint identification method and device and mobile terminal | |
| CN108196753B (en) | Interface switching method and mobile terminal | |
| CN107835495B (en) | Message prompting method and device and mobile terminal | |
| CN110784652A (en) | Video shooting method and device, electronic equipment and storage medium | |
| CN110609648A (en) | Application program control method and terminal | |
| CN110753201A (en) | Video recording method and device, electronic equipment and storage medium | |
| CN107967418B (en) | Face recognition method and mobile terminal | |
| CN107832067B (en) | Application updating method, mobile terminal and computer readable storage medium | |
| CN108196663B (en) | Face recognition method and mobile terminal | |
| CN108810284B (en) | Mode switching method of camera and electronic equipment | |
| CN108388400B (en) | Operation processing method and mobile terminal | |
| CN108089935B (en) | Application program management method and mobile terminal | |
| CN108021315B (en) | Control method and mobile terminal | |
| CN110868683B (en) | Ultrasonic module failure detection method and electronic equipment | |
| CN111261128B (en) | Screen brightness adjusting method and electronic equipment | |
| CN109947345B (en) | Fingerprint identification method and terminal equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |