WO2019183772A1 - 一种指纹解锁方法及终端 - Google Patents

一种指纹解锁方法及终端 Download PDF

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Publication number
WO2019183772A1
WO2019183772A1 PCT/CN2018/080552 CN2018080552W WO2019183772A1 WO 2019183772 A1 WO2019183772 A1 WO 2019183772A1 CN 2018080552 W CN2018080552 W CN 2018080552W WO 2019183772 A1 WO2019183772 A1 WO 2019183772A1
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WO
WIPO (PCT)
Prior art keywords
user
touch display
display screen
fingerprint
terminal
Prior art date
Application number
PCT/CN2018/080552
Other languages
English (en)
French (fr)
Inventor
周锦
张希
Original Assignee
华为技术有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201880044592.3A priority Critical patent/CN110832482B/zh
Priority to EP18912750.9A priority patent/EP3764254B1/en
Priority to CN202310131270.5A priority patent/CN116257836B/zh
Priority to PCT/CN2018/080552 priority patent/WO2019183772A1/zh
Priority to US17/041,998 priority patent/US11630892B2/en
Priority to CN202310743070.5A priority patent/CN116861392A/zh
Publication of WO2019183772A1 publication Critical patent/WO2019183772A1/zh
Priority to US18/180,661 priority patent/US11941101B2/en

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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
    • G06V40/1306—Sensors therefor non-optical, e.g. ultrasonic or capacitive sensing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/31—User authentication
    • G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
    • 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
    • G06V40/1365—Matching; Classification
    • 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
    • G06V40/20—Movements or behaviour, e.g. gesture recognition
    • G06V40/28—Recognition of hand or arm movements, e.g. recognition of deaf sign language
    • 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
    • G06V40/60—Static or dynamic means for assisting the user to position a body part for biometric acquisition
    • G06V40/63—Static or dynamic means for assisting the user to position a body part for biometric acquisition by static guides

Definitions

  • the present invention relates to the field of terminal technologies, and in particular, to a fingerprint unlocking method and a terminal.
  • the screen fingerprint detection technology provides a solution.
  • the fingerprint detection under the screen that is, the fingerprint detector is placed under the touch display screen, and the user places the finger on the touch display screen above the fingerprint detector to realize fingerprint detection.
  • the user can see the position of the fingerprint button and perform detection; in the scheme of the screen fingerprint detection, the user cannot intuitively determine the position of the fingerprint detector. In the scene where the user needs to perform fingerprint recognition, especially when using the fingerprint to unlock the screen, how to prompt the user for the location of the fingerprint detector has become an urgent problem to be solved.
  • the embodiment of the present invention provides a fingerprint unlocking method and a terminal, which can be used on a terminal that adopts a screen fingerprint detection scheme to display a fingerprint identification area for a user, so that the user can perform fingerprint recognition.
  • an embodiment of the present application provides a fingerprint unlocking method, where the method includes:
  • the terminal determines whether the user operation meets the preset condition; when the user operation meets the preset condition, the fingerprint identification identifier is displayed on the touch display screen of the terminal, and the display area of the fingerprint identification mark is capable The area where fingerprinting is performed.
  • the terminal when the terminal detects that the user operation may be an operation for unlocking the fingerprint, the terminal displays the fingerprint identification identifier in the area where the fingerprint recognition is possible, so that the user performs fingerprint recognition in the display area, and the user cannot be seen because The problem with the location of the fingerprint detector.
  • the user operation is that the user touches the touch display screen or a floating operation of the touch display screen, and the terminal determines whether the user operation meets a pre- Set the conditions to:
  • the terminal determines, according to the capacitance signal generated by the user on the operation of the touch display screen, whether the capacitance signal is greater than or equal to a preset threshold value, or a capacitance value less than or equal to a preset threshold.
  • the user operation is a floating operation of the touch display screen by the user
  • the terminal determines whether the user operation meets a preset condition:
  • the terminal determines, according to the capacitance signal generated by the user operating the touch display screen, whether the distance between the finger of the user and the touch display screen is less than or equal to a preset threshold.
  • the user operation is that the user touches the touch display screen, and the terminal determines whether the user operation meets a preset condition:
  • the user operation is that the user touches the touch display screen or a floating operation of the touch display screen, and the terminal determines whether the user operation meets a pre- Set the conditions to:
  • the terminal determines, according to the capacitive signal generated by the user operating the touch display screen, whether the user's finger slides from an area that is capable of fingerprint recognition to an area that can be fingerprint-recognized.
  • the user operation is an operation of the user on a mobile phone button
  • the terminal determines whether the user operation meets a preset condition:
  • the terminal determines, according to a signal generated by the user on the operation of the mobile phone key, whether the user presses a key, presses a volume key, or the user presses a button to increase the volume and decrease the volume at the same time.
  • the method further includes:
  • the terminal activates a fingerprint detector.
  • the embodiment of the present application further provides a terminal, where the terminal includes a processor, a touch display screen, and a fingerprint detector, the fingerprint detector is built in the terminal, and the processor is configured to: :
  • the user operation is in accordance with a preset condition, and the touch display screen is controlled to display a fingerprint identification identifier, and the display area of the fingerprint identification identifier is an area capable of fingerprint recognition.
  • the user operation is that the user touches the touch display screen or a floating operation of the touch display screen;
  • the processor is specifically configured to:
  • the user operation is a floating operation of the touch display screen by the user
  • the processor is specifically configured to:
  • the user operation is to touch the touch display screen by the user
  • the processor is specifically configured to:
  • the user operation is that the user touches the touch display screen or a floating operation of the touch display screen;
  • the processor is specifically configured to:
  • the user operation is an operation of the user on a mobile phone button
  • the processor is specifically configured to:
  • the terminal determines, according to a signal generated by the user on the operation of the mobile phone key, whether the user presses a switch key, presses a volume key, or the user presses a button to increase the volume and decrease the volume at the same time.
  • the processor is further configured to:
  • FIG. 1 is a schematic diagram of the appearance of a conventional terminal according to an embodiment of the present application.
  • FIG. 2 is a schematic diagram of the appearance of a terminal according to an embodiment of the present disclosure
  • FIG. 3 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic flowchart of a fingerprint unlocking method according to an embodiment of the present disclosure
  • FIG. 5 is a schematic diagram of an effect of a fingerprint unlocking method according to an embodiment of the present disclosure
  • FIG. 6 is a schematic diagram of a capacitance signal of a touch display screen according to an embodiment of the present disclosure
  • FIG. 7 is a second schematic diagram of a capacitive signal of a touch display screen according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic diagram of a moving direction of a user's finger according to an embodiment of the present application.
  • FIG. 9 is a second schematic flowchart of a fingerprint unlocking method according to an embodiment of the present disclosure.
  • FIG. 10 is a third schematic flowchart of a fingerprint unlocking method according to an embodiment of the present disclosure.
  • fingerprint recognition technology Since fingerprint recognition technology is relatively mature, with the advantages of high security, fast recognition speed, high recognition success rate, fingerprint recognition technology has been widely used in intelligent terminals. Users can use fingerprint recognition instead of password input to complete operations such as unlocking the screen and paying.
  • the fingerprint detector may be disposed on the front panel of the terminal or on the rear panel of the terminal.
  • the user can select the terminal for front fingerprint recognition or the terminal for fingerprint recognition according to his own operating habits.
  • the terminal is in the lock screen state, usually, the integrated circuit of the touch display screen is in a power-off state, that is, a non-working state, but the integrated circuit of the fingerprint detector is in a working state, and the user can lock the screen in the case of the terminal. Place your finger on the fingerprint detector to complete fingerprint recognition and unlock the screen.
  • the screen ratio is the ratio of the area of the screen to the front panel of the terminal.
  • a higher screen ratio provides a better visual experience for the user. Therefore, the higher the screen ratio, the more popular the consumer.
  • the designer proposes to set the fingerprint detector under the touch display panel, that is, the fingerprint detection under the screen, as shown in the figure. As shown in 2, the user can perform fingerprint recognition by placing a finger on the touch display screen.
  • the fingerprint detector is disposed under the touch display screen, the user cannot see the position of the fingerprint detector, which brings difficulties for the user to use the fingerprint to unlock and the like.
  • the embodiment of the present application provides a fingerprint unlocking method for displaying a fingerprint identification area for a user on a terminal adopting an on-screen fingerprint identification scheme, so that the user can perform fingerprint recognition.
  • the terminal involved in the embodiment of the present invention may include a mobile phone, a tablet computer, a personal digital assistant (PDA), and the like.
  • PDA personal digital assistant
  • FIG. 3 is a block diagram showing a part of the structure of the mobile phone 300 related to the embodiment of the present invention.
  • the mobile phone 300 can include: a radio frequency (RF) circuit 310, a memory 320, other input devices 330, a touch display 340, a fingerprint detector 350, a sensor 360, an audio circuit 370, and an I/O subsystem 380. , processor 390, and power supply 3100 and other components.
  • RF radio frequency
  • FIG. 3 does not constitute a limitation of the terminal to which the embodiment of the present application is applicable, and the terminal applicable to the embodiment of the present application may include more or less components than those illustrated. Or combine some parts, or split some parts, or different parts.
  • the components of the mobile phone 300 will be specifically described below with reference to FIG. 3:
  • the RF circuit 310 can be used for receiving and transmitting information during the transmission or reception of information or during a call. Specifically, after receiving the downlink information of the base station, the processing is performed by the processor 390. In addition, the uplink data is designed to be sent to the base station.
  • RF circuits include, but are not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier (LNA), a duplexer, and the like.
  • RF circuitry 310 can also communicate with the network and other devices via wireless communication.
  • the wireless communication may use any communication standard or protocol, including but not limited to global system of mobile communication (GSM), general packet radio service (GPRS), code division multiple access (code) Division multiple access (CDMA), wideband code division multiple access (WCDMA), long term evolution (LTE), fifth generation mobile communication system (5G), e-mail, short Short message service (SMS), etc.
  • GSM global system of mobile communication
  • GPRS general packet radio service
  • code code division multiple access
  • WCDMA wideband code division multiple access
  • LTE long term evolution
  • 5G fifth generation mobile communication system
  • SMS short Short message service
  • the memory 320 can be used to store software programs and modules, and the processor 390 executes various functional applications and data processing of the mobile phone 300 by running software programs and modules stored in the memory 320.
  • the memory 320 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application 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 be stored according to the mobile phone.
  • the data created by the use of 300 (such as audio data, phone book, etc.).
  • memory 320 can include high speed random access memory, and can also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
  • Other input devices 330 can be used to receive input numeric or character information, as well as generate key signal inputs related to user settings and function controls of handset 300.
  • other input devices 330 may include, but are not limited to, function keys (such as volume control buttons, switch buttons, etc.), cameras, and the like.
  • Other input devices 330 are coupled to other input device controllers 381 of I/O subsystem 380 for signal interaction with processor 390 under the control of other input device controllers 381.
  • the touch display 340 can be used to display information provided to the user or information input by the user as well as various menus of the mobile phone 300, and can also accept user input.
  • the specific touch display screen 340 can include a display panel 341 and a touch panel 342.
  • the display panel 341 can be configured by using a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.
  • the touch panel 342, also referred to as a touch screen, a touch sensitive screen, etc., can collect contact or non-contact operations on or near the user (eg, the user uses any suitable object or accessory such as a finger, a stylus, etc. on the touch panel 342.
  • the operation in the vicinity of the touch panel 342 may also include a somatosensory operation; the operation includes a single-point control operation, a multi-point control operation, and the like, and the corresponding connection device is driven according to a preset program.
  • the touch panel 342 can include two parts: a touch detection device and a touch controller. Wherein, the touch detection device detects the touch orientation and posture of the user, and detects a signal brought by the touch operation, and transmits a signal to the touch controller; the touch controller receives the touch information from the touch detection device, and converts the signal into a processor. The processed information is sent to the processor 390 and can receive commands from the processor 390 and execute them.
  • the touch panel 342 can cover the display panel 341, and the user can display the content according to the display panel 341 (the display content includes, but is not limited to, a soft keyboard, a virtual mouse, a virtual button, an icon, etc.) on the display panel 341. Operation is performed on or near the covered touch panel 342. After detecting the operation thereon or nearby, the touch panel 342 transmits to the processor 390 through the I/O subsystem 380 to determine user input, and then the processor 390 is based on the user. The input provides a corresponding visual output on display panel 341 via I/O subsystem 380.
  • the touch panel 342 and the display panel 341 are used as two independent components to implement the input and input functions of the mobile phone 300, in some embodiments, the touch panel 342 may be integrated with the display panel 341. The input and output functions of the mobile phone 300 are implemented.
  • the fingerprint detector 350 is configured to identify the fingerprint of the user, such as fingerprint unlocking or fingerprint payment, and detect whether the fingerprint input by the user is a legal fingerprint.
  • the handset 300 can also include at least one type of sensor 360, such as an acceleration sensor 361, a light sensor, and other sensors.
  • the acceleration sensor 361 can detect the magnitude of acceleration in each direction (generally three axes), and can detect the magnitude and direction of gravity when stationary, and can be used to identify the gesture of the mobile phone (such as horizontal and vertical screen switching, related games, magnetometers). Attitude calibration), vibration recognition related functions (such as pedometer, tapping), etc.
  • the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the touch display screen 340 according to the brightness of the ambient light.
  • the proximity sensor can turn off the screen and/or backlight when the handset 300 is moved to the ear.
  • Other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, and the like that can be configured in the mobile phone 300 will not be described herein.
  • Audio circuit 370, speaker 371, microphone 372 can provide an audio interface between the user and handset 300.
  • the audio circuit 370 can transmit the converted audio data to the speaker 371 for conversion to the sound signal output by the speaker 371; on the other hand, the microphone 372 converts the collected sound signal into a signal, which is received by the audio circuit 370.
  • the audio data is converted to audio data, which is then output to the RF circuit 310 for transmission to, for example, another mobile phone, or the audio data is output to the memory 320 for further processing.
  • the I/O subsystem 380 is used to control external devices for input and output.
  • the I/O subsystem 380 can include other input device controllers 381, sensor controllers 382, display controllers 383, and fingerprint controllers 384.
  • one or more other input device controllers 381 receive signals from other input devices 330 and/or send signals to other input devices 330.
  • Other input devices 330 may include physical buttons (pressing buttons, etc.), cameras, and the like. It is worth noting that other input device controllers 381 can be connected to any one or more of the above devices.
  • Display controller 383 in I/O subsystem 380 receives signals from touch display 340 and/or transmits signals to touch display 340.
  • the display controller 383 converts the detected user input into an interaction with the user interface object displayed on the touch display 340, ie, implements human-computer interaction.
  • Sensor controller 382 can receive signals from one or more sensors 360 and/or send signals to one or more sensors 360.
  • Fingerprint controller 384 can receive signals from fingerprint detector 350 and/or send signals to fingerprint detector 350.
  • Processor 390 is the control center of handset 300, which connects various portions of the entire handset using various interfaces and lines, by running or executing software programs and/or modules stored in memory 320, and recalling data stored in memory 320, The various functions and processing data of the mobile phone 300 are performed to perform overall monitoring of the mobile phone.
  • the processor 390 may include one or more processing units; optionally, the processor 390 may integrate an application processor and a modem processor, where the application processor mainly processes an operating system, a user interface, and an application. Etc.
  • the modem processor primarily handles wireless communications. It will be appreciated that the above described modem processor may also not be integrated into the processor 390.
  • the handset 300 also includes a power source 3100 (such as a battery) that supplies power to the various components.
  • a power source 3100 such as a battery
  • the power source can be logically coupled to the processor 390 via a power management system to manage functions such as charging, discharging, and power consumption through the power management system.
  • the mobile phone 300 may further include other modules such as a Bluetooth module, and details are not described herein again.
  • the fingerprint unlocking method provided by the embodiment of the present invention is described in detail below by taking the mobile phone 300 as an example.
  • FIG. 4 is a schematic flowchart of a fingerprint unlocking method according to an embodiment of the present disclosure. As shown in the figure, the method may include the following steps:
  • Step 401 When the mobile phone 300 is in the lock screen state, the processor 390 determines whether the user operation meets the preset condition.
  • Step 402 If it is determined that the preset condition is met, the processor 390 controls the touch display screen 340 to display the fingerprint identification identifier, wherein the display area of the fingerprint identification identifier is an area capable of fingerprint recognition, that is, an area where the fingerprint detector is located.
  • the fingerprint identification identifier is displayed in an area where fingerprint recognition is possible, as shown in FIG. 5, so that the user performs in the display area. Fingerprint recognition solves the problem that the user cannot see the location of the fingerprint detector.
  • the lock screen state may be a screen lock screen state or a bright screen lock screen state.
  • the bright screen lock screen state indicating that the touch screen is illuminated, can display date, time and other information, but the display interface has not displayed the main application interface or other application interface, for example, usually after pressing the open key of the mobile phone
  • the touch screen of the mobile phone will light up, but the user wants to use the mobile phone and needs to unlock the operation to enter the main application interface of the mobile phone or other application interface.
  • the mobile phone 300 may determine whether the user's non-contact operation is performed, or may determine the contact operation.
  • the non-contact operation may include a floating operation of the user's finger within a certain distance above the touch display screen, and may also include operations such as user's voice control.
  • the processor 390 in the mobile phone 300 can determine whether the floating operation of the user's finger above the touch display screen 340 satisfies a preset condition according to the capacitance signal of the touch display screen 340.
  • the integrated circuit of the touch display screen is normally in a power-off state, that is, the touch display screen is in an inoperative state, and the user's operation cannot be recognized.
  • the processor 390 is still required to detect the capacitance signal of the touch display screen 340 to determine the operation of the user.
  • the capacitive touch display screen can be divided into a self-capacitive touch display screen and a mutual capacitance touch display screen.
  • the self-capacitance screen is provided with a horizontal and vertical electrode array, and the horizontal and vertical electrodes respectively form a capacitance with the ground.
  • the capacitance of the finger will be superimposed on the screen capacitance, increasing the capacitance of the screen.
  • the self-capacitance screen detects the capacitance values of the lateral and vertical electrode arrays respectively when detecting the user operation, and determines the lateral coordinate and the longitudinal coordinate of the user operation position according to the change of the capacitance of the user before and after the operation of the self-capacitance screen.
  • the detected capacitance signal when the distance of the user's finger from the touch screen is far away, the detected capacitance signal can be as shown in FIG. 6( a ); when the user's finger is closer to the touch screen display, the detected capacitance signal can be as Figure 6 (b), wherein the capacitance value of the position indicated by the square in Figure 6 (b) is significantly increased compared with the capacitance value of the position indicated by the square in Figure 6 (a), and the maximum capacitance value is located at In the area, the user is closer to the touch screen display at the location, and the user may be considered to be located above the screen of the area, and the mobile phone may be operated.
  • the processor 390 in the mobile phone 300 can determine whether the distance between the user's finger and the touch display screen 340 is less than or equal to a threshold according to a capacitance signal generated by the user's floating operation. In general, when the user's finger is very close to the touch display screen 340 of the mobile phone 300, the user may use the mobile phone 300 more. Therefore, the processor 390 may determine that the distance between the user's finger and the touch display screen 340 is less than When the threshold is equal to the control, the touch display screen 340 displays the fingerprint identification identifier to facilitate the user to perform fingerprint recognition in the area to implement the unlock screen.
  • the value of the capacitance signal generated by the touch screen 340 at the position of the user's finger when the distance between the user's finger and the touch display screen 340 is a preset distance threshold may be determined in advance, and the capacitance value is used as a preset threshold;
  • the processor 390 determines that there is a capacitance value greater than or equal to the preset threshold in the capacitance signal of the touch display screen 340, it is determined that the distance between the user's finger and the touch display screen 340 is less than or equal to the threshold, and then on the area capable of fingerprint recognition. The fingerprint identification is displayed.
  • the processor 390 in the mobile phone 300 can determine whether the moving direction of the user's finger relative to the touch display screen 340 conforms to a preset condition according to a capacitance signal generated by the user's floating operation. For example, if the user's finger slides from an area that is capable of fingerprint recognition to an area that is capable of fingerprint recognition, it is determined that the user operation meets a preset condition, that is, the user intends to unlock the screen by fingerprint recognition, in which case, The processor 390 can control the touch display screen 340 to display the fingerprint identification identifier on the area capable of fingerprint recognition, so as to facilitate the user to perform fingerprint recognition in the area to implement the unlock screen.
  • the processor 390 in the mobile phone 300 can determine the moving direction of the user's finger according to the change of the capacitance signal measured by the touch display screen 340 within a certain period of time. For example, if the capacitance signal as shown in FIG. 7 is detected at time t1, and the capacitance signal detected after 0.5 seconds is as shown in FIG. 6(b), the movement direction of the user's finger above the screen can be considered as shown in FIG. As shown in Figure 8, slide from point A to point B.
  • the processor 390 in the mobile phone 300 controls the touch display screen 340 to display the fingerprint identification identifier to prompt the user to perform the fingerprint recognition area, which is convenient for the user to perform in the area. Fingerprint recognition enables unlocking the screen.
  • the above-mentioned motion direction is only an example of the embodiment of the present application, and the preset condition may further include other preset motion directions, which is not limited by the embodiment of the present application.
  • the foregoing preset condition may include that the distance between the user and the touch display screen 340 is less than or equal to a preset threshold, and that the movement direction of the user relative to the touch display screen 340 meets a preset condition, that is, the user needs to simultaneously The distance between the finger and the touch display screen 340 is satisfied within a preset range, and a gesture conforming to the preset condition is made.
  • the non-contact operation also includes sound control and the like.
  • the processor 390 in the mobile phone 300 can also receive the user's audio signal through the audio circuit and when the audio signal meets the preset condition, The user displays the fingerprint identification area.
  • the integrated circuit of the touch display screen may be in a power-off state.
  • the integrated circuit of the touch display screen can also be powered off, that is, when the mobile phone 300 locks the screen, the mobile phone 300 can display the fingerprint identification area according to the user's voice control, or display the fingerprint identification area according to the user's operation on the touch display screen.
  • the processor 390 in the mobile phone 300 may further perform the foregoing step 402 when the contact operation of the touch display screen 340 by the user meets the preset condition, that is, the touch display screen 340 is enabled.
  • the fingerprint identification area displays the fingerprint identification identifier to facilitate the user to perform fingerprint recognition.
  • the touch screen is still required to detect the user operation in the lock screen state, and therefore, the integrated circuit of the touch screen is not powered off.
  • the processor 390 in the mobile phone 300 can determine whether the user's touch operation meets a preset condition according to a signal generated by the user operating the touch display screen 340.
  • the capacitive touch display has become the mainstream mobile phone screen. Therefore, for a mobile phone provided with a capacitive touch display, the processor can determine whether the user's touch operation conforms to a preset condition according to the capacitive signal of the touch display.
  • the user is in contact with the touch display 340, ie, the preset condition is met.
  • the processor 390 can determine whether the user has touched the touch display screen 340 according to the capacitance signal of the touch display screen 340. For example, for a self-capacitive touch display screen, the capacitance value of the touch area will increase after the user touches the screen; and for the mutual capacitance type touch display screen, after the user touches the screen, the capacitance value of the touch area will reduce.
  • the processor 390 can determine whether the user touches the touch display screen 340 according to the change in the capacitance value.
  • the preset condition may include an area in which the user's finger is in contact with the touch display screen 340 within the preset area.
  • the mobile phone 300 can perform scanning detection only on a part of the touch display screen when the screen is locked, that is, the operation of the user can be recognized in the area where the scanning detection is performed, and other areas are in an inoperative state.
  • the user's action was detected.
  • the area detected by the scan may include an area capable of fingerprint recognition. For example, if the fingerprint detector is disposed in the lower half of the touch display screen, only the lower half of the touch display screen may be scanned and detected when the screen is locked.
  • the division of the foregoing area is only a specific embodiment.
  • the preset area may be set according to different scenarios and different user requirements.
  • the preset condition may also include the number of times the user taps the touch display screen or the user's swipe gesture on the touch display screen, and the like. For example, if the user taps the touch display twice, the user displays the fingerprint identification. For another example, if the user's finger slides from the area away from the fingerprint recognition to the area near the fingerprint recognition on the touch display screen, the fingerprint recognition area is displayed for the user.
  • the processor can determine the sliding operation of the user on the touch display screen 340 according to the capacitance signal of the touch display screen 340. The determining method is similar to the foregoing determining the floating operation, but only the capacitance value generated by the floating operation and the contact operation. The changes may vary.
  • the preset condition may also include a plurality of preset conditions.
  • the user operation needs to satisfy the plurality of preset conditions at the same time, it is considered that the user intends to unlock the screen and display the fingerprint identification area for the user. For example, if the user double-clicks on the screen and the area of the double click is located in the lower half of the touch display screen, the processor 390 in the handset 300 controls the touch display screen to display the fingerprint recognition area.
  • the capacitive touch display can include a self-capacitive touch display and a mutual capacitance touch display.
  • the mutual capacitance touch display screen is also provided with horizontal and vertical electrode arrays.
  • the mutual capacitance touch display can realize multi-point detection, the mutual capacitance touch display is more widely used.
  • the self-capacitance and the mutual capacitance touch display screen can be realized, but the change of the capacitance value is different before and after the touch.
  • the touch display screen includes a capacitive touch display screen, a resistive touch display screen, a vector pressure sensing technology touch display screen, an infrared technology touch display screen, and a surface acoustic wave technology touch screen display.
  • a capacitive touch display screen a resistive touch display screen
  • a vector pressure sensing technology touch display screen an infrared technology touch display screen
  • a surface acoustic wave technology touch screen display it can also be determined whether the contact area of the user and the touch display screen is within a preset range, thereby determining whether the fingerprint recognition area is displayed for the user.
  • a method of detecting non-contact operation and detecting contact operation may also be adopted on the mobile phone, thereby realizing display for the user. Fingerprint recognition distinguishes areas.
  • the user's contact operation on the mobile phone 300 may also include a button operation, for example, an open key and/or a volume key are present on the side of the mobile phone 300.
  • the processor 390 in the mobile phone 300 can also display the fingerprint identification area for the user when it is determined that the user's key operation conforms to the preset condition.
  • the preset condition may be a user pressing a switch key, a user pressing a volume key, or a user pressing a button for increasing the volume and decreasing the volume at the same time.
  • the touch display screen 340 is displayed to display the fingerprint identification mark in the area capable of fingerprint recognition. .
  • the fingerprint detector is in a working state when the conventional mobile phone is in the lock screen state.
  • the fingerprint detector in the mobile phone can also be in a working state when the mobile phone is in the lock screen state, so that when the user is familiar with the fingerprint identification area of the terminal, even if the mobile phone does not display the fingerprint identification area, the user also Fingers can be directly placed on the fingerprint recognition area for fingerprint recognition to simplify user operations.
  • the fingerprint detector in the mobile phone 300 when the mobile phone 300 is in the lock screen state, can also be in a power-off state, that is, a non-working state, so that the user can avoid the mistake when the user holds the mobile phone but does not use the mobile phone. Unlocking operation, if the mobile phone unlocks the screen without the user's knowledge, more misoperations may occur, such as accidentally dialing the phone, etc. In addition, accidentally unlocking the screen is also more expensive.
  • FIG. 9 exemplarily shows a process in which the mobile phone unlocks the screen according to the gesture of the user.
  • Step 901 The mobile phone is in a lock screen state.
  • Step 902 The processor determines, according to a capacitance signal of the touch display screen, whether the user performs an operation. If a user operation is detected, step 903 is performed.
  • Step 903 The processor determines whether the user's finger is sliding away from the fingerprint identification area to the fingerprint identification area, and if yes, executing step 904.
  • Step 904 The processor controls the touch display screen to display the fingerprint identification area, and turns on the fingerprint detector.
  • the fingerprint detector is always in operation, there is no need to open the fingerprint detector here.
  • Step 905 The processor determines, by the fingerprint detector, whether there is a legal fingerprint input, and if yes, performs step 806.
  • Step 906 The processor unlocks the touch display screen.
  • FIG. 10 exemplarily shows a process in which the mobile phone unlocks the screen according to the user's contact operation with the touch display screen.
  • Step 1001 The mobile phone is in a lock screen state.
  • Step 1002 The processor determines, according to the capacitance signal of the touch display screen, whether the user double-clicks the touch display screen in the preset area, and if yes, performs step 1003.
  • Step 1003 The processor controls the touch display screen to display the fingerprint identification area, and turns on the fingerprint detector.
  • the fingerprint detector is always in operation, there is no need to open the fingerprint detector here.
  • Step 1004 The processor determines, by using a fingerprint detector, whether there is a legal fingerprint input. If yes, step 905 is performed.
  • Step 1005 The processor unlocks the touch display screen.
  • the embodiment of the present application further provides a terminal, which is used to implement the foregoing method embodiments.
  • the structure of the terminal can be as shown in FIG. 3, but is not limited to the terminal shown in FIG.
  • the terminal may include: a processor, a touch display screen, and a fingerprint detector, the fingerprint detector being built in the terminal;
  • the processor is configured to:
  • the user operation is in accordance with a preset condition, and the touch display screen is controlled to display a fingerprint identification identifier, and the display area of the fingerprint identification identifier is an area capable of fingerprint recognition.
  • the user operation is that the user touches the touch display screen or a floating operation of the touch display screen;
  • the processor is specifically configured to:
  • the user operation is a floating operation of the touch display screen by the user
  • the processor is specifically configured to:
  • the user operation is to touch the touch display screen by the user
  • the processor is specifically configured to:
  • the user operation is that the user touches the touch display screen or a floating operation of the touch display screen;
  • the processor is specifically configured to:
  • the user operation is an operation of the user on a button of a mobile phone
  • the processor is specifically configured to:
  • the terminal determines, according to a signal generated by the user on the operation of the mobile phone key, whether the user presses a key, presses a volume key, or the user presses a button to increase the volume and decrease the volume at the same time.
  • the processor is further configured to: control the fingerprint detector to be turned on.
  • terminal embodiment can refer to the detailed description of the method embodiment, and details are not described herein again.
  • Embodiments of the present application can be provided as a method, apparatus, or computer program product.
  • the application can take the form of an embodiment of the software and hardware aspects.
  • Embodiments of the present application may employ computer usable storage media including one or more computer usable program code, such as memory, flash memory, read only memory (ROM), erasable programmable read only memory (Erasable).
  • ROM read only memory
  • Erasable erasable programmable read only memory
  • Programmable ROM EPROM
  • CD-ROM Compact Disc Read-Only Memory
  • the form of storage medium is in the form of a computer program product embodied on a medium.

Abstract

一种指纹解锁方法及终端。该方法可以应用于具有屏下指纹检测功能的终端中，在终端处于锁屏状态，终端判断用户操作是否符合预设条件；若用户操作符合预设条件，在终端的触摸显示屏上显示指纹识别标识，该指纹识别标识的显示区域为能够进行指纹识别的区域。上述方法解决了用户由于看不见指纹检测器的位置而无法进行指纹解锁的问题。

Description

一种指纹解锁方法及终端 技术领域
本申请涉及终端技术领域，尤其涉及一种指纹解锁方法及终端。
背景技术
随着触摸显示屏的飞速发展，具有较高的屏占比(屏幕与终端前面板的面积之比)的智能终端正逐渐成为市场上的主流产品。
对于使用前置指纹检测的终端，若仍采用指纹按键的方案，则对屏占比的提高构成较大限制。为了满足习惯于前置指纹识别用户的使用习惯，同时保证终端具有较高的屏占比，屏下指纹检测技术提供了一种解决方案。屏下指纹检测，即，将指纹检测器置于触摸显示屏幕的下方，用户将手指置于指纹检测器上方的触摸显示屏上，即可实现指纹检测。
但是，在指纹按键检测的方案中，用户可以看到指纹按键的位置并进行检测；而在屏下指纹检测的方案中，用户无法直观判断指纹检测器的位置。在用户需要进行指纹识别的场景中，尤其是利用指纹解锁屏幕时，如何提示用户指纹检测器的位置，成为目前亟待解决的问题。
发明内容
本申请实施例提供了一种指纹解锁方法及终端，可以用在采用屏下指纹检测方案的终端上，实现为用户显示指纹识别区域，以便用户能够进行指纹识别。
第一方面，本申请实施例提供了一种指纹解锁方法，该方法包括：
当终端处于锁屏状态时，该终端判断用户操作是否符合预设条件；在用户操作符合预设条件时，在该终端的触摸显示屏上显示指纹识别标识，该指纹识别标识的显示区域为能够进行指纹识别的区域。
在上述方式中，终端在检测到用户操作可能为意图进行指纹解锁的操作时，则在能够进行指纹识别的区域显示指纹识别标识，以使用户在显示区域内进行指纹识别，解决用户由于看不到指纹检测器的位置的问题。
结合第一方面，在一种可能的实现方式中，所述用户操作为所述用户触摸所述触摸显示屏或对所述触摸显示屏的悬浮操作，所述终端判断所述用户操作是否符合预设条件为：
所述终端根据所述用户对所述触摸显示屏操作产生的电容信号，判断所述电容信号是否大于或等于预设阈值的电容值，或者，小于等于预设阈值的电容值。
结合第一方面，在一种可能的实现方式中，所述用户操作为所述用户对所述触摸显示屏的悬浮操作，所述终端判断所述用户操作是否符合预设条件为：
所述终端根据所述用户操作所述触摸显示屏产生的电容信号判断所述用户的手指与所述触摸显示屏之间的距离是否小于或等于预设阈值。
结合第一方面，在一种可能的实现方式中，所述用户操作为所述用户触摸所述触摸显示屏，所述终端判断所述用户操作是否符合预设条件为：
所述终端根据所述用户操作所述触摸显示屏产生的电容信号，判断所述用户手指与所述触摸显示屏接触的区域是否在预设区域，所述预设区域为能够进行指纹识别的区域。
结合第一方面，在一种可能的实现方式中，所述用户操作为所述用户触摸所述触摸显示屏或对所述触摸显示屏的悬浮操作，所述终端判断所述用户操作是否符合预设条件为：
所述终端根据所述用户操作所述触摸显示屏产生的电容信号，判断所述用户手指是否从远离能够进行指纹识别的区域滑向靠近能够进行指纹识别的区域。
结合第一方面，在一种可能的实现方式中，所述用户操作为所述用户对手机按键的操作，所述终端判断所述用户操作是否符合预设条件为：
所述终端根据所述用户对所述手机按键操作产生的信号，判断所述用户是否按下开关键、按下音量键，或者所述用户同时按键增大音量和减小音量的按键。
结合第一方面，在一种可能的实现方式中，在所述终端判断用户操作符合预设条件之后，还包括：
所述终端启动指纹检测器。
第二方面，本申请实施例还提供了一种终端，该终端所述终端包括处理器、触摸显示屏和指纹检测器，所述指纹检测器内置在所述终端；所述处理器，用于：
在终端处于锁屏状态，判断用户操作是否符合预设条件；
所述用户操作符合预设条件，控制所述触摸显示屏显示指纹识别标识，所述指纹识别标识的显示区域为能够进行指纹识别的区域。
结合第二方面，在一种可能的实现方式中，所述用户操作为所述用户触摸所述触摸显示屏或对所述触摸显示屏的悬浮操作；
所述处理器具体用于：
根据所述用户对所述触摸显示屏操作产生的电容信号，判断所述电容信号是否大于或等于预设阈值的电容值。
结合第二方面，在一种可能的实现方式中，所述用户操作为所述用户对所述触摸显示屏的悬浮操作；
所述处理器具体用于：
根据所述用户操作所述触摸显示屏产生的电容信号判断所述用户的手指与所述触摸显示屏之间的距离是否小于或等于预设阈值，或者，小于等于预设阈值的电容值。
结合第二方面，在一种可能的实现方式中，所述用户操作为所述用户触摸所述触摸显示屏；
所述处理器具体用于：
根据所述用户操作所述触摸显示屏产生的电容信号，判断所述用户手指与所述触摸显示屏接触的区域是否在预设区域，所述预设区域为能够进行指纹识别的区域。
结合第二方面，在一种可能的实现方式中，所述用户操作为所述用户触摸所述触摸显示屏或对所述触摸显示屏的悬浮操作；
所述处理器具体用于：
根据所述用户操作所述触摸显示屏产生的电容信号，判断所述用户手指是否从远离能够进行指纹识别的区域滑向靠近能够进行指纹识别的区域。
结合第二方面，在一种可能的实现方式中，所述用户操作为所述用户对手机按键的操作；
所述处理器具体用于：
所述终端根据所述用户对所述手机按键操作产生的信号，判断所述用户是否按下开关 键、按下音量键，或者所述用户同时按键增大音量和减小音量的按键。
结合第二方面，在一种可能的实现方式中，所述处理器在判断所述用户操作符合预设条件之后，还用于：
控制指纹检测器开启。
附图说明
图1为本申请实施例提供的传统终端的外观示意图；
图2为本申请实施例提供的终端的外观示意图；
图3为本申请实施例提供的终端的结构示意图；
图4为本申请实施例提供的指纹解锁方法的流程示意图之一；
图5为本申请实施例提供的指纹解锁方法的效果示意图；
图6为本申请实施例提供的触摸显示屏的电容信号示意图之一；
图7为本申请实施例提供的触摸显示屏的电容信号示意图之二；
图8为本申请实施例提供的用户手指运动方向示意图；
图9为本申请实施例提供的指纹解锁方法的流程示意图之二；
图10为本申请实施例提供的指纹解锁方法的流程示意图之三。
具体实施方式
下面将结合附图对本申请实施例作进一步地详细描述。
由于指纹识别技术已相对成熟，具有安全性高、识别速度快、识别成功率高等优点，使得指纹识别技术已经被广泛应用于智能终端中。用户可以通过指纹识别代替密码输入，完成解锁屏幕、支付等操作。
如图1所示，在传统终端中，指纹检测器可以设置于终端的前面板上，也可以设置于终端的后面板上。用户可以根据自己的操作习惯，选择前置指纹识别的终端或者后置指纹识别的终端。在终端处于锁屏状态时，通常情况下，触摸显示屏的集成电路处于下电状态，即非工作状态，但指纹检测器的集成电路处于工作状态，用户可以在终端锁屏的情况下，将手指置于指纹检测器上，完成指纹识别并解锁屏幕。
随着终端技术的发展，为了更好的视觉体验，屏占比逐渐成为消费者和终端生产商所关心的问题。屏占比，即为屏幕与终端前面板的面积之比。较高的屏占比，能够为用户提供更好的视觉体验。因此，屏占比越高的终端，更能够获得消费者的青睐。
在提高终端的屏占比的设计中，为了满足偏好于使用前置指纹识别的用户的需求，设计者提出了将指纹检测器设置于触摸显示屏面板的下方，即屏下指纹检测，如图2所示，用户可以通过将手指置于触摸显示屏上从而实现指纹识别。
然而，由于指纹检测器设置于触摸显示屏下方，用户无法看到指纹检测器的位置，这就给用户利用指纹解锁等操作带来了困难。
为了解决上述技术问题，本申请实施例提供了一种指纹解锁方法，用于在采用屏下指纹识别方案的终端上，实现为用户显示指纹识别区域，以便用户能够进行指纹识别。
本发明实施例涉及的终端，可以包括手机、平板电脑、个人数字助理(personal digital assistant，PDA)等。
以终端为手机为例，图3示出的是与本发明实施例相关的手机300的部分结构的框图。参见图3，手机300可以包括：射频(radio frequency，RF)电路310、存储器320、其他输入设备330、触摸显示屏340、指纹检测器350、传感器360、音频电路370、I/O子系统380、处理器390、以及电源3100等部件。本领域技术人员可以理解，图3中示出的手机结构并不构成对本申请实施例所适用的终端的限定，本申请实施例可适用的终端可以包括比图示更多或更少的部件，或者组合某些部件，或者拆分某些部件，或者不同的部件布置。
下面结合图3对手机300的各个构成部件进行具体的介绍：
RF电路310可用于收发信息或通话过程中，信号的接收和发送，特别地，将基站的下行信息接收后，给处理器390处理；另外，将设计上行的数据发送给基站。通常，RF电路包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器(low noise amplifier，LNA)、双工器等。此外，RF电路310还可以通过无线通信与网络和其他设备通信。所述无线通信可以使用任一通信标准或协议，包括但不限于全球移动通讯系统(global system of mobile communication，GSM)、通用分组无线服务(general packet radio service，GPRS)、码分多址(code division multiple access，CDMA)、宽带码分多址(wideband code division multiple access，WCDMA)、长期演进(long term evolution，LTE)、第五代移动通信系统(the fifth generation，5G)、电子邮件、短消息服务(short messaging service，SMS)等。
存储器320可用于存储软件程序以及模块，处理器390通过运行存储在存储器320的软件程序以及模块，从而执行手机300的各种功能应用以及数据处理。存储器320可包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序(比如声音播放功能、图像播放功能等)等；存储数据区可存储根据手机300的使用所创建的数据(比如音频数据、电话本等)等。此外，存储器320可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他易失性固态存储器件。
其他输入设备330可用于接收输入的数字或字符信息，以及产生与手机300的用户设置以及功能控制有关的键信号输入。具体地，其他输入设备330可包括但不限于功能键(比如音量控制按键、开关按键等)、摄像头等。其他输入设备330与I/O子系统380的其他输入设备控制器381相连接，在其他输入设备控制器381的控制下与处理器390进行信号交互。
触摸显示屏340可用于显示提供给用户的信息或由用户输入的信息以及手机300的各种菜单，还可以接受用户输入。具体的触摸显示屏340可包括显示面板341，以及触控面板342。其中显示面板341可以采用液晶显示器(liquid crystal display，LCD)、有机发光二极管(organic light-emitting diode，OLED)等形式来配置显示面板341。触控面板342，也称为触摸屏、触敏屏等，可收集用户在其上或附近的接触或者非接触操作(比如用户使用手指、触笔等任何适合的物体或附件在触控面板342上或在触控面板342附近的操作，也可以包括体感操作；该操作包括单点控制操作、多点控制操作等操作类型)，并根据预先设定的程式驱动相应的连接装置。可选的，触控面板342可包括触摸检测装置和触摸控制器两个部分。其中，触摸检测装置检测用户的触摸方位、姿势，并检测触摸操作带来的信号，将信号传送给触摸控制器；触摸控制器从触摸检测装置上接收触摸信息，并将它转换成处理器能够处理的信息，再送给处理器390，并能接收处理器390发来的命令并加以执行。进一步的，触控面板342可覆盖显示面板341，用户可以根据显示面板341显示的 内容(该显示内容包括但不限于，软键盘、虚拟鼠标、虚拟按键、图标等等)，在显示面板341上覆盖的触控面板342上或者附近进行操作，触控面板342检测到在其上或附近的操作后，通过I/O子系统380传送给处理器390以确定用户输入，随后处理器390根据用户输入通过I/O子系统380在显示面板341上提供相应的视觉输出。虽然在图3中，触控面板342与显示面板341是作为两个独立的部件来实现手机300的输入和输入功能，但是在某些实施例中，可以将触控面板342与显示面板341集成而实现手机300的输入和输出功能。
指纹检测器350用于对用户的指纹进行识别，例如指纹解锁或者指纹支付时，检测用户输入的指纹是否为合法指纹。
手机300还可包括至少一种传感器360，比如加速度传感器361、光传感器以及其他传感器。具体地，加速度传感器361可检测各个方向上(一般为三轴)加速度的大小，静止时可检测出重力的大小及方向，可用于识别手机姿态的应用(比如横竖屏切换、相关游戏、磁力计姿态校准)、振动识别相关功能(比如计步器、敲击)等；光传感器可包括环境光传感器及接近传感器，其中，环境光传感器可根据环境光线的明暗来调节触摸显示屏340的亮度，接近传感器可在手机300移动到耳边时，关闭屏幕和/或背光。至于手机300还可配置的陀螺仪、气压计、湿度计、温度计、红外线传感器等其他传感器，在此不再赘述。
音频电路370、扬声器371，麦克风372可提供用户与手机300之间的音频接口。音频电路370可将接收到的音频数据转换后的信号，传输到扬声器371，由扬声器371转换为声音信号输出；另一方面，麦克风372将收集的声音信号转换为信号，由音频电路370接收后转换为音频数据，再将音频数据输出至RF电路310以发送给比如另一手机，或者将音频数据输出至存储器320以便进一步处理。
I/O子系统380用来控制输入输出的外部设备，可选的，I/O子系统380可以包括其他输入设备控制器381、传感器控制器382、显示控制器383、指纹控制器384。可选的，一个或多个其他输入设备控制器381从其他输入设备330接收信号和/或者向其他输入设备330发送信号，其他输入设备330可以包括物理按钮(按压按钮等)、摄像头等。值得说明的是，其他输入设备控制器381可以与任一个或者多个上述设备连接。所述I/O子系统380中的显示控制器383从触摸显示屏340接收信号和/或者向触摸显示屏340发送信号。触摸显示屏340检测到用户输入后，显示控制器383将检测到的用户输入转换为与显示在触摸显示屏340上的用户界面对象的交互，即实现人机交互。传感器控制器382可以从一个或者多个传感器360接收信号和/或者向一个或者多个传感器360发送信号。指纹控制器384可以从指纹检测器350接收信号和/或向指纹检测器350发送信号。
处理器390是手机300的控制中心，利用各种接口和线路连接整个手机的各个部分，通过运行或执行存储在存储器320内的软件程序和/或模块，以及调用存储在存储器320内的数据，执行手机300的各种功能和处理数据，从而对手机进行整体监控。可选的，处理器390可包括一个或多个处理单元；可选的，处理器390可集成应用处理器和调制解调处理器，其中，应用处理器主要处理操作系统、用户界面和应用程序等，调制解调处理器主要处理无线通信。可以理解的是，上述调制解调处理器也可以不集成到处理器390中。
手机300还包括给各个部件供电的电源3100(比如电池)，可选的，电源可以通过电源管理系统与处理器390逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功 耗等功能。
尽管未示出，手机300还可以包括蓝牙模块等其他模块，在此不再赘述。
下面以手机300为例，详细介绍本发明实施例提供的指纹解锁方法。
参见图4，为本申请实施例提供的指纹解锁方法的流程示意图，如图所示，该方法可以包括以下步骤：
步骤401、当手机300处于锁屏状态，处理器390判断用户操作是否符合预设条件。
步骤402、若判断符合预设条件，则处理器390控制触摸显示屏340显示指纹识别标识，其中，指纹识别标识的显示区域为能够进行指纹识别的区域，即，指纹检测器所在区域。
在上述方法中，手机300在检测到用户操作可能为意图进行指纹解锁的操作时，则在能够进行指纹识别的区域显示指纹识别标识，可以如图5所示，以使用户在显示区域内进行指纹识别，解决了用户由于看不得指纹检测器的位置的问题。
具体地，上述锁屏状态，可以是息屏锁屏状态，也可以是亮屏锁屏状态。其中，亮屏锁屏状态，表示触摸显示屏虽然被点亮，可以显示日期、时间等信息，但显示界面还没有显示主应用界面或其他应用程序界面，例如，通常按下手机的开关键后，手机的触摸显示屏会亮起，但用户想要使用手机还需要进行解锁操作才能进入手机的主应用界面或其他应用程序界面。
可选地，手机300判断用户操作是否符合预设条件时，可以针对用户的非接触性操作进行判断，也可以针对接触性操作进行判断。
非接触性操作，可以包括用户手指在触摸显示屏上方一定距离内的悬浮操作，也可以包括用户的声音控制等操作。
在一种可能的实现方式中，手机300中的处理器390可以根据触摸显示屏幕340的电容信号确定用户手指在触摸显示屏340上方的悬浮操作是否满足预设条件。
如前所述，在传统终端处于锁屏状态时，通常触摸显示屏的集成电路处于下电状态，即触摸显示屏处于不工作状态，无法对用户的操作进行识别。而在上述方式中，当手机300处于锁屏状态时，仍需要处理器390对触摸显示屏340的电容信号进行检测，判断用户的操作。
具体地，电容式触摸显示屏可分为自电容触摸显示屏和互电容触摸显示屏。其中，自电容屏幕上设置有横向与纵向的电极阵列，这些横向和纵向的电极分别与地构成电容。当手指触摸到屏幕或者未接触屏幕但与屏幕距离在一定范围内时，手指的电容将会叠加到屏幕电容上，使屏幕的电容量增加。自电容屏幕在检测用户操作时，分别检测横向与纵向电极阵列的电容值，根据用户操作自电容屏幕前后电容的变化，分别确定用户操作位置的横向坐标和纵向坐标。用户的手指离触摸显示屏的距离越近，则电容值越高，距离越远，则电容值越低。因此，可以根据电容信号分析用户手指的位置以及悬浮的操作。
例如，当用户手指离触摸显示屏的距离较远时，检测到的电容信号可以如图6(a)所示；当用户手指离触摸显示屏的距离较近时，检测到的电容信号可以如图6(b)所示，其中，图6(b)中方框所标注位置的电容值，与图6(a)中方框所标注位置的电容值相比，显著增加，且最大电容值位于该区域内，说明用户在该位置与触摸显示屏距离较近，可认为用户是手指位于该区域屏幕的上方，可能要对手机进行操作。
手机300中的处理器390可以根据用户的悬浮操作所产生的电容信号，判断用户的手 指与触摸显示屏340之间的距离是否小于或等于阈值。一般来说，当用户的手指与手机300的触摸显示屏340距离很近时，用户较大可能要使用手机300，因此，处理器390可以在判断用户手指与触摸显示屏340之间的距离小于等于阈值时，控制触摸显示屏340显示指纹识别标识，以方便用户在该区域进行指纹识别实现解锁屏幕。
例如，可以预先确定用户手指与触摸显示屏340之间的距离为预设距离阈值时，触摸显示屏340在用户手指位置处产生的电容信号的值，并将该电容值作为预设阈值；当处理器390确定触摸显示屏340的电容信号中存在大于等于该预设阈值的电容值时，则判断用户手指与触摸显示屏340之间的距离小于等于阈值，则在能够进行指纹识别的区域上显示指纹识别标识。
此外，手机300中的处理器390可以根据用户的悬浮操作所产生的电容信号，判断用户手指相对于触摸显示屏340的运动方向是否符合预设条件。例如，若用户的手指从远离能够进行指纹识别的区域滑向靠近能够进行指纹识别的区域，则判断用户操作符合预设条件，即，认为用户意图通过指纹识别解锁屏幕，在这种情况下，处理器390可以控制触摸显示屏340在能够进行指纹识别的区域上显示指纹识别标识，以方便用户在该区域进行指纹识别实现解锁屏幕。
具体地，手机300中的处理器390在判断用户相对于触摸显示屏340的运动方向时，可以根据触摸显示屏340测到的电容信号在一定时间内的变化情况判断用户手指的运动方向。例如，若在t1时刻检测到如图7所示的电容信号，而在0.5秒后检测到的电容信号如图6(b)所示，则可以认为用户的手指在屏幕上方的运动方向如图8所示，从A点滑向B点。因为A点到指纹识别区域的距离大于B点到指纹识别区域的距离，故而判断用户手指从远离指纹检测器的区域滑向靠近指纹检测器的区域。在这种情况下，可认为用户意图通过指纹识别解锁屏幕，手机300中的处理器390则控制触摸显示屏340显示指纹识别标识，以提示用户可进行指纹识别的区域，方便用户在该区域进行指纹识别实现解锁屏幕。
应当理解，上述运动方向仅为本申请实施例的一个例子，预设条件还可以包括其它预设的运动方向，本申请实施例对此不做限制。
可选地，上述预设条件可以既包括用户与触摸显示屏340之间的距离小于或等于预设阈值，还包括用户相对于触摸显示屏340的运动方向符合预设条件，即，用户需要同时满足手指与触摸显示屏340的距离在预设范围内，且做出符合预设条件的手势。
此外，非接触性操作还包括声音控制等，在一种可能的实现方式中，手机300中的处理器390还可以在通过音频电路接收用户的音频信号并在音频信号符合预设条件时，为用户显示指纹识别区域。可选地，采用声控方式时，触摸显示屏的集成电路可以处于下电状态。当然，触摸显示屏的集成电路也可以不下电，即手机300锁屏时，手机300既可以根据用户的声音控制显示指纹识别区域，也可以根据用户对触摸显示屏的操作显示指纹识别区域。
在一种可能的实现方式中，手机300中的处理器390还可以在判断用户对触摸显示屏340的接触性操作符合预设条件时，执行上述步骤402，即控制触摸显示屏340在能够进行指纹识别的区域显示指纹识别标识，以方便用户进行指纹识别。
具体地，由于在该种方式中，在锁屏状态时仍需要触摸显示屏检测用户操作，因此，触摸显示屏的集成电路并不下电。
可选地，手机300中的处理器390可以根据用户操作触摸显示屏340所产生的信号判 断用户的触摸操作是否符合预设条件。目前，电容式触摸显示屏已成为主流的手机屏幕，因此，对于设置有电容式触摸显示屏的手机，处理器可以根据触摸显示屏的电容信号判断用户的触摸操作是否符合预设条件。
在一些实施例中，用户与触摸显示屏340接触，即满足预设条件。具体地，若触摸显示屏340为电容屏，处理器390可以根据触摸显示屏340的电容信号判断用户是否对触摸显示屏340进行了触摸操作。例如，对于自电容式的触摸显示屏来说，用户接触屏幕后，触摸区域的电容值会升高；而对于互电容式的触摸显示屏来说，用户接触屏幕后，触摸区域的电容值会降低。处理器390可以根据电容值的变化判断用户是否接触了触摸显示屏340。
在另外一些实施例中，预设条件可以包括用户手指与触摸显示屏340接触的区域在预设区域内。例如，为了节省电量，手机300在锁屏时，可以仅对触摸显示屏的部分区域进行扫描检测，即，在进行扫描检测的区域中能够识别用户的操作，而其他区域处于非工作状态而无法检测到用户的操作。该扫描检测的区域可以为包括能够进行指纹识别的区域，如，若指纹检测器设置于触摸显示屏的下半区域，则可以在锁屏时，仅扫描检测触摸显示屏的下半区域，若用户触摸了屏幕的下半区域，可以认为用户意图解锁屏幕，则能够进行指纹识别区域中显示指纹识别标识；若用户触摸了屏幕的上半区域，由于上半区域处于非工作状态无法检测到用户的操作，因此不会显示指纹识别区域。
应当理解，上述区域的划分仅为一个具体实施例，在实际应用时，可以根据不同的场景、不同的用户需求，设置该预设区域。
在其他一些实施例中，预设条件也可以包括用户敲击触摸显示屏的次数或者用户在触摸显示屏上的滑动手势等等。例如，用户敲击触摸显示屏两次，则为用户显示指纹识别标识。再例如，若用户手指在触摸显示屏上从远离指纹识别的区域滑向靠近指纹识别的区域，则为用户显示指纹识别区域。具体地，处理器可以根据触摸显示屏340的电容信号判断用户在触摸显示屏340上的滑动操作，判断方法与前述对悬浮操作进行判断时类似，只是悬浮操作与接触性操作所产生的电容值的变化可能不同。
进一步地，预设条件中也可以包括多项预设条件，用户操作需同时满足该多项预设条件时，认为用户意图解锁屏幕，为用户显示指纹识别区域。例如，用户双击屏幕，且双击的区域位于触摸显示屏的下半区域，则手机300中的处理器390控制触摸显示屏显示指纹识别区域。
如前所述，电容式触摸显示屏可以包括自电容触摸显示屏和互电容触摸显示屏。互电容触摸显示屏上也设置有横向与纵向的电极阵列，当手指触摸到电容屏时，影响了触摸点附近两个电极之间的耦合，从而改变了这两个电极之间的电容量。由于互电容触摸显示屏能够实现多点检测，因此互电容触摸显示屏的应用更为广泛。而上述根据电容信号检测用户的接触性操作是否符合预设条件时，自电容和互电容的触摸显示屏，均能够实现，但触摸前和触摸后，电容值的变化不同。
此外，触摸显示屏除了包括电容式触摸显示屏，还包括电阻式触摸显示屏、矢量压力传感技术触摸显示屏、红外线技术触摸显示屏、表面声波技术触摸显示屏等。在不同类型的触摸显示屏中，根据其自身工作原理也均可实现判断用户与触摸显示屏的接触区域是否在预设范围内，进而判断是否为用户显示指纹识别区域。
进一步地，对于既能够检测对触摸显示屏的接触性操作又能够检测非接触性操作的手 机，也可以在该手机上采用检测非接触性操作和检测接触性操作的方式，从而实现为用户显示指纹识别区别区域。
可选地，用户对手机300的接触性操作还可以包括按键操作，例如，手机300的侧面存在开关键和/或音量键。手机300中的处理器390还可以在判断用户的按键操作符合预设条件时，为用户显示指纹识别区域。其中，预设条件可以为用户按下开关键、用户按下音量键、或用户同时按下增大音量和减小音量的按键等等。在一个具体实施例中，当手机300处于锁屏状态时，若手机300中的处理器390检测到用户按下开关键时，则控制触摸显示屏340在能够进行指纹识别的区域显示指纹识别标识。如前所述，在传统手机处于锁屏状态时，指纹检测器处于工作状态。
在本申请提供的实施例中，手机中的指纹检测器也可以在手机处于锁屏状态时持续处于工作状态，使得用户在熟悉终端的指纹识别区域时，即使手机没有显示指纹识别区域，用户也可以直接将手指放置于指纹识别区域上进行指纹识别，以简化用户操作。在另外一些实施例中，当手机300处于锁屏状态时，手机300中的指纹检测器也可以处于下电状态，即非工作状态，因此可以避免用户在手持手机但并不使用手机时发生误解锁操作，若手机在用户不知情的情况下解锁屏幕，很可能发生更多的误操作，例如误拨电话等等，此外，误解锁屏幕也比较耗费电量。
为了清楚理解本申请上述实施例，下面结合图9、图10进行详细说明。
其中，图9实例性的给出了手机根据用户的手势解锁屏幕的过程。
步骤901、手机处于锁屏状态。
步骤902、处理器根据触摸显示屏的电容信号判断用户是否进行操作。若检测到用户操作，则执行步骤903。
步骤903、处理器判断用户手指是否从远离指纹识别区域滑向靠近指纹识别区域，若是则执行步骤904。
步骤904、处理器控制触摸显示屏显示指纹识别区域，并开启指纹检测器。
可选地，若指纹检测器一直处于工作状态，则此处无需开启指纹检测器的步骤。
步骤905、处理器通过指纹检测器判断是否存在合法的指纹输入，若存在则执行步骤806。
步骤906、处理器对触摸显示屏进行解锁。
图10示例性的给出了手机根据用户对触摸显示屏的接触性操作解锁屏幕的过程。
步骤1001、手机处于锁屏状态。
步骤1002、处理器根据触摸显示屏的电容信号判断用户是否在预设区域中双击触摸显示屏，若是，则执行步骤1003。
步骤1003、处理器控制触摸显示屏显示指纹识别区域，并开启指纹检测器。
可选地，若指纹检测器一直处于工作状态，则此处无需开启指纹检测器的步骤。
步骤1004、处理器通过指纹检测器判断是否存在合法的指纹输入，若存在则执行步骤905。
步骤1005、处理器对触摸显示屏进行解锁。
基于相同的技术构思，本申请实施例还提供了一种终端，用于实现上述方法实施例。该终端的结构可以如图3所示，但不限于图3所示的终端。该终端可以包括：处理器、触摸显示屏和指纹检测器，所述指纹检测器内置在所述终端；
所述处理器，用于：
在终端处于锁屏状态，判断用户操作是否符合预设条件；
所述用户操作符合预设条件，控制所述触摸显示屏显示指纹识别标识，所述指纹识别标识的显示区域为能够进行指纹识别的区域。
在一种可能的实现方式中，所述用户操作为所述用户触摸所述触摸显示屏或对所述触摸显示屏的悬浮操作；
所述处理器具体用于：
根据所述用户对所述触摸显示屏操作产生的电容信号，判断所述电容信号是否大于或等于预设阈值的电容值，或者，小于等于预设阈值的电容值。
在一种可能的实现方式中，所述用户操作为所述用户对所述触摸显示屏的悬浮操作；
所述处理器具体用于：
根据所述用户操作所述触摸显示屏产生的电容信号判断所述用户的手指与所述触摸显示屏之间的距离是否小于或等于预设阈值。
在一种可能的实现方式中，所述用户操作为所述用户触摸所述触摸显示屏；
所述处理器具体用于：
根据所述用户操作所述触摸显示屏产生的电容信号，判断所述用户手指与所述触摸显示屏接触的区域是否在预设区域，所述预设区域为能够进行指纹识别的区域。
在一种可能的实现方式中，所述用户操作为所述用户触摸所述触摸显示屏或对所述触摸显示屏的悬浮操作；
所述处理器具体用于：
根据所述用户操作所述触摸显示屏产生的电容信号，判断所述用户手指是否从远离能够进行指纹识别的区域滑向靠近能够进行指纹识别的区域。
在一种可能的实现方式中，所述用户操作为所述用户对手机按键的操作；
所述处理器具体用于：
所述终端根据所述用户对所述手机按键操作产生的信号，判断所述用户是否按下开关键、按下音量键，或者所述用户同时按键增大音量和减小音量的按键。
在一种可能的实现方式中，所述处理器在判断所述用户操作符合预设条件之后，还用于：控制指纹检测器开启。
可以理解的，终端实施例可以参考方法实施例的详细描述，此处不再赘述。
本领域内的技术人员应明白，本申请的实施例可提供为方法、装置、或计算机程序产品。因此，本申请可采用软件和硬件方面的实施例的形式。本申请实施例可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质，例如存储器、闪存、只读存储器(Read Only Memory，ROM)、可擦除可编程只读存储器(Erasable Programmable ROM，EPROM)、电可擦可编程只读存储器(Electrically EPROM，EEPROM)、寄存器、硬盘、移动硬盘、只读光盘(Compact Disc Read-Only Memory，CD-ROM)或者本领域熟知的任何其它形式的存储介质中等上实施的计算机程序产品的形式。
显然，本领域的技术人员在本申请的技术方案的基础上，对本申请进行的等同替换、改进等，均应包括在本申请的保护范围之内。

Claims (14)

  1. 一种指纹解锁方法，其特征在于，所述方法包括：
    在终端处于锁屏状态，所述终端判断用户操作是否符合预设条件；
    所述用户操作符合预设条件，在所述终端的触摸显示屏上显示指纹识别标识，所述指纹识别标识的显示区域为能够进行指纹识别的区域。
  2. 如权利要求1所述的方法，其特征在于，所述用户操作为所述用户触摸所述触摸显示屏或对所述触摸显示屏的悬浮操作，所述终端判断所述用户操作是否符合预设条件为：
    所述终端根据所述用户对所述触摸显示屏操作产生的电容信号，判断所述电容信号是否大于或等于预设阈值的电容值，或者，小于或等于预设阈值的电容值。
  3. 如权利要求1所述的方法，其特征在于，所述用户操作为所述用户对所述触摸显示屏的悬浮操作，所述终端判断所述用户操作是否符合预设条件为：
    所述终端根据所述用户操作所述触摸显示屏产生的电容信号判断所述用户的手指与所述触摸显示屏之间的距离是否小于或等于预设阈值。
  4. 如权利要求1所述的方法，其特征在于，所述用户操作为所述用户触摸所述触摸显示屏，所述终端判断所述用户操作是否符合预设条件为：
    所述终端根据所述用户操作所述触摸显示屏产生的电容信号，判断所述用户手指与所述触摸显示屏接触的区域是否在预设区域，所述预设区域为能够进行指纹识别的区域。
  5. 如权利要求1所述的方法，其特征在于，所述用户操作为所述用户触摸所述触摸显示屏或对所述触摸显示屏的悬浮操作，所述终端判断所述用户操作是否符合预设条件为：
    所述终端根据所述用户操作所述触摸显示屏产生的电容信号，判断所述用户手指是否从远离能够进行指纹识别的区域滑向靠近能够进行指纹识别的区域。
  6. 如权利要求1所述的方法，其特征在于，所述用户操作为所述用户对手机按键的操作，所述终端判断所述用户操作是否符合预设条件为：
    所述终端根据所述用户对所述手机按键操作产生的信号，判断所述用户是否按下开关键、按下音量键，或者所述用户同时按键增大音量和减小音量的按键。
  7. 如权利要求1所述的方法，其特征在于，在所述终端判断用户操作符合预设条件之后，还包括：
    所述终端启动指纹检测器。
  8. 一种终端，其特征在于，所述终端包括处理器、触摸显示屏和指纹检测器，所述指纹检测器内置在所述终端；
    所述处理器，用于：
    在所述终端处于锁屏状态，判断用户操作是否符合预设条件；
    所述用户操作符合预设条件，控制所述触摸显示屏显示指纹识别标识，所述指纹识别标识的显示区域为能够进行指纹识别的区域。
  9. 如权利要求8所述的终端，其特征在于，所述用户操作为所述用户触摸所述触摸显示屏或对所述触摸显示屏的悬浮操作；
    所述处理器具体用于：
    根据所述用户对所述触摸显示屏操作产生的电容信号，判断所述电容信号是否大于或等于预设阈值的电容值，或者，小于或等于预设阈值的电容值。
  10. 如权利要求8所述的终端，其特征在于，所述用户操作为所述用户对所述触摸显示屏的悬浮操作；
    所述处理器具体用于：
    根据所述用户操作所述触摸显示屏产生的电容信号判断所述用户的手指与所述触摸显示屏之间的距离是否小于或等于预设阈值。
  11. 如权利要求8所述的终端，其特征在于，所述用户操作为所述用户触摸所述触摸显示屏；
    所述处理器具体用于：
    根据所述用户操作所述触摸显示屏产生的电容信号，判断所述用户手指与所述触摸显示屏接触的区域是否在预设区域，所述预设区域为能够进行指纹识别的区域。
  12. 如权利要求8所述的终端，其特征在于，所述用户操作为所述用户触摸所述触摸显示屏或对所述触摸显示屏的悬浮操作；
    所述处理器具体用于：
    根据所述用户操作所述触摸显示屏产生的电容信号，判断所述用户手指是否从远离能够进行指纹识别的区域滑向靠近能够进行指纹识别的区域。
  13. 如权利要求8所述的终端，其特征在于，所述用户操作为所述用户对手机按键的操作；
    所述处理器具体用于：
    所述终端根据所述用户对所述手机按键操作产生的信号，判断所述用户是否按下开关键、按下音量键，或者所述用户同时按键增大音量和减小音量的按键。
  14. 如权利要求8所述的终端，其特征在于，所述处理器在判断所述用户操作符合预设条件之后，还用于：
    控制指纹检测器开启。
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