CN111382609B - Fingerprint identification method and terminal - Google Patents

Fingerprint identification method and terminal Download PDF

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Publication number
CN111382609B
CN111382609B CN201811623104.2A CN201811623104A CN111382609B CN 111382609 B CN111382609 B CN 111382609B CN 201811623104 A CN201811623104 A CN 201811623104A CN 111382609 B CN111382609 B CN 111382609B
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module
display
fingerprint
touch
fingerprint identification
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CN111382609A (en
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杨坤
卞青芳
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Beijing Xiaomi Mobile Software Co Ltd
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Beijing Xiaomi Mobile Software Co Ltd
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    • 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
    • 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

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  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Image Input (AREA)
  • User Interface Of Digital Computer (AREA)
  • Telephone Function (AREA)

Abstract

The disclosure relates to a fingerprint identification method and a terminal, and belongs to the technical field of computers. The method is used in a terminal, the terminal comprises a processor, a fingerprint identification module, a touch module and a display module, wherein the fingerprint identification module and the touch module are respectively connected with the processor, the display module is connected with the touch module, and the fingerprint identification module is positioned at the lower layer of the display module, and the method comprises the following steps: when the display module is in a screen-off display mode, the touch module acquires a touch signal; the touch control module respectively sends interrupt signals to the processor and the display module under the control of the touch control signals; under the triggering of the interrupt signal, the display module switches the display mode of the screen to a fingerprint acquisition display mode, wherein the fingerprint acquisition display mode is a display mode when acquiring fingerprints; and the processor controls the fingerprint identification module to carry out fingerprint identification based on the fingerprint acquisition display mode under the triggering of the interrupt signal. The fingerprint identification efficiency is improved, the user experience is improved, and the fingerprint identification accuracy is improved.

Description

Fingerprint identification method and terminal
Technical Field
The disclosure relates to the field of computer technology, and in particular, to a fingerprint identification method and a terminal.
Background
Most of the existing terminals are provided with fingerprint identification modules so as to collect fingerprints of users through the fingerprint identification modules and identify the identities of the users according to the fingerprints.
The fingerprint identification module mainly has several realization forms such as capacitanc, optics formula, compares in capacitanc's fingerprint identification module, and the below at touch-control display screen can be installed to optics formula fingerprint identification module to promoted touch-control display screen's screen ratio greatly, so, optics formula fingerprint identification module is used more and more in installing the terminal of comprehensive screen.
Disclosure of Invention
In order to solve the problems in the related art, the present disclosure provides a fingerprint identification method and a terminal.
According to a first aspect of an embodiment of the present disclosure, a fingerprint identification method is provided, which is used in a terminal, where the terminal includes a processor, a fingerprint identification module and a touch module that are respectively connected with the processor, and a display module that is connected with the touch module, and the fingerprint identification module is located at a lower layer of the display module, and the method includes:
when the display module is in a screen-off display mode, the touch module acquires a touch signal;
The touch control module respectively sends interrupt signals to the processor and the display module under the control of the touch control signals;
the display module switches the screen-extinguishing display mode into a fingerprint acquisition display mode under the triggering of the interrupt signal, wherein the fingerprint acquisition display mode is a display mode when fingerprints are acquired;
and the processor controls the fingerprint identification module to carry out fingerprint identification based on the fingerprint acquisition display mode under the triggering of the interrupt signal.
In a possible implementation manner, the display module switches the screen-extinguishing display mode to a fingerprint acquisition display mode under the triggering of the interrupt signal, and the method includes:
the display module is triggered by the interrupt signal, and is used for hiding a first picture displayed in the screen-extinguishing display mode and displaying a second picture at a preset position in the fingerprint acquisition display mode, wherein the first picture is used for prompting a user to input fingerprints, and the second picture is used for providing a light source for acquiring fingerprints when displayed.
In one possible implementation, the method further includes:
the processor sends a control instruction to the display module, wherein the control instruction comprises the first picture and the second picture;
And the display module stores the first picture and the second picture, and displays the first picture in the screen-off display mode.
In one possible implementation manner, when the identification area of the fingerprint identification module is smaller than a predetermined threshold, the predetermined position is the position where the fingerprint identification module is located.
In one possible implementation manner, when the identification area of the fingerprint identification module is greater than or equal to a predetermined threshold, the method further includes:
the touch control module determines the position information of the fingers of the user according to the touch control signals and sends the position information to the display module;
and the display module determines the position indicated by the position information as the preset position.
In one possible implementation manner, the touch module obtains a touch signal, including:
the touch control module acquires an input signal and information of the input signal, wherein the information comprises at least one of position information of a finger, area information of a contact area between the finger and the touch control module and pressing force information of the finger;
the touch module detects whether the information meets a preset condition;
And when the information meets the preset condition, the touch control module determines the input signal as the touch control signal.
According to a second aspect of the embodiments of the present disclosure, a terminal is provided, where the terminal includes a processor, a fingerprint identification module and a touch module that are respectively connected to the processor, and a display module that is connected to the touch module, and the fingerprint identification module is located at a lower layer of the display module;
the touch control module is configured to acquire a touch control signal when the display module is in a screen-off display mode;
the touch control module is further configured to respectively send interrupt signals to the processor and the display module under the control of the touch control signals;
the display module is configured to switch the screen-extinguishing display mode into a fingerprint acquisition display mode under the triggering of the interrupt signal, wherein the fingerprint acquisition display mode is a display mode when fingerprints are acquired;
and the processor is configured to control the fingerprint identification module to carry out fingerprint identification based on the fingerprint acquisition display mode under the triggering of the interrupt signal.
In one possible implementation, the display module is further configured to:
Under the triggering of the interrupt signal, hiding a first picture displayed in the screen-extinguishing display mode, and displaying a second picture at a preset position in the fingerprint acquisition display mode, wherein the first picture is used for prompting a user to input a fingerprint, and the second picture is used for providing a light source for acquiring the fingerprint when displayed.
In a possible implementation manner, the processor is further configured to send a control instruction to the display module, where the control instruction includes the first picture and the second picture;
the display module is further configured to store the first picture and the second picture, and display the first picture in the screen-off display mode.
In one possible implementation manner, when the identification area of the fingerprint identification module is smaller than a predetermined threshold, the predetermined position is the position where the fingerprint identification module is located.
In one possible implementation, when the identification area of the fingerprint identification module is greater than or equal to a predetermined threshold,
the touch control module is further configured to determine position information of a finger of a user according to the touch control signal and send the position information to the display module;
The display module is further configured to determine a position indicated by the position information as the predetermined position.
In one possible implementation, the touch module is further configured to:
acquiring an input signal and acquiring information of the input signal, wherein the information comprises at least one of position information of a finger, area information of a contact area between the finger and the touch module and pressing force information of the finger;
detecting whether the information meets a preset condition or not;
and when the information meets the preset condition, determining the input signal as the touch signal.
The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects:
because touch module links to each other with display module assembly, so, touch module assembly is after receiving the touch signal, can send interrupt signal to treater and display module assembly respectively, like this, display module assembly can be directly according to interrupt signal switching to fingerprint acquisition display mode, simultaneously, the treater can control fingerprint identification module assembly and carry out fingerprint identification, when having avoided touch module assembly and display module assembly not linking to each other, display module assembly needs to switch to fingerprint acquisition display mode under the control of treater, fingerprint identification module assembly carries out fingerprint identification again, lead to fingerprint identification's cycle longer, fingerprint identification inefficiency's problem, thereby fingerprint identification's efficiency has been improved, user's experience has also been promoted.
In addition, the period of fingerprint identification is shortened, so that the problem that the acquired fingerprint is unclear due to the fact that a user easily shakes when keeping one action for a long time when the period of fingerprint identification is long is avoided, and the accuracy of fingerprint identification is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a flow chart illustrating a fingerprint recognition method according to an exemplary embodiment.
Fig. 2 is a flowchart illustrating a fingerprint recognition method according to another exemplary embodiment.
Fig. 3 is a timing diagram illustrating a fingerprint recognition method according to another exemplary embodiment.
Fig. 4 is a flowchart illustrating a fingerprint recognition method according to another exemplary embodiment.
Fig. 5 is a block diagram illustrating a fingerprint recognition device according to an exemplary embodiment.
Fig. 6 is a block diagram illustrating an apparatus for fingerprint recognition according to an exemplary embodiment.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the accompanying claims.
Fig. 1 is a flowchart of a fingerprint identification method according to an exemplary embodiment, where the fingerprint identification method is applied to a terminal, the terminal includes a processor, a fingerprint identification module and a touch module respectively connected to the processor, and a display module connected to the touch module, and the fingerprint identification module is located at a lower layer of the display module, as shown in fig. 1, and the fingerprint identification method includes the following steps.
In step 101, when the display module is in the inactive display mode, the touch module acquires a touch signal.
In step 102, the touch module sends interrupt signals to the processor and the display module respectively under the control of the touch signal.
In step 103, the display module switches the display mode of the screen to the fingerprint acquisition display mode under the triggering of the interrupt signal, where the fingerprint acquisition display mode is the display mode when acquiring the fingerprint.
In step 104, the processor controls the fingerprint recognition module to perform fingerprint recognition based on the fingerprint collection display mode under the triggering of the interrupt signal.
In summary, according to the fingerprint identification method provided by the disclosure, since the touch module is connected with the display module, after receiving the touch signal, the touch module can respectively send the interrupt signal to the processor and the display module, so that the display module can be directly switched to the fingerprint acquisition display mode according to the interrupt signal, and meanwhile, the processor can control the fingerprint identification module to carry out fingerprint identification, so that when the touch module is not connected with the display module, the display module needs to be switched to the fingerprint acquisition display mode under the control of the processor, the fingerprint identification module carries out fingerprint identification again, the period of fingerprint identification is long, and the fingerprint identification efficiency is low, thereby improving the fingerprint identification efficiency and the user experience.
In addition, the period of fingerprint identification is shortened, so that the problem that the acquired fingerprint is unclear due to the fact that a user easily shakes when keeping one action for a long time when the period of fingerprint identification is long is avoided, and the accuracy of fingerprint identification is improved.
Fig. 2 is a flowchart of a fingerprint recognition method according to another exemplary embodiment, where the fingerprint recognition method is applied to a terminal, the terminal includes a processor, a fingerprint recognition module and a touch module respectively connected to the processor, and a display module connected to the touch module, and the fingerprint recognition module is located at a lower layer of the display module, as shown in fig. 2, and the fingerprint recognition method includes the following steps.
In step 201, the processor sends a control instruction to the display module, where the control instruction includes a first picture and a second picture.
The display module is a module with a display function in the terminal.
Optionally, the display module includes a display screen and a DDIC (Display Driver Integrated Circuits, display driving integrated circuit) for controlling the display screen to display. The display screen may be a full-screen, and in this case, in order to increase the screen ratio of the full-screen, the fingerprint recognition module may be disposed at a lower layer of the display module. Since the fingerprint recognition module in this embodiment is an optical fingerprint recognition module, if the fingerprint recognition module is required to work normally, the display screen needs to be transparent, so the display screen in this embodiment may be an OLED (Organic Light Emitting Diode ) display screen or other transparent display screen.
Optionally, the display module may further include a memory, which may be a RAM (Random AccessMemory ) or other types of memories, and the embodiment is not limited thereto.
When the user control terminal enters a screen-extinguishing display (Always On Display, AOD) mode, the processor generates a control instruction, and sends the control instruction to the display module, and the processor is switched from the working state to the dormant state. The control instruction is used for indicating the display module to switch to the screen-extinguishing display mode.
The screen-off display mode is a display mode of the display module when the screen is off. When the screen is closed, the display module can display some information in a local area of the display screen with low resolution (lower than the resolution of the display screen when the screen is on). For example, if the user wants to view the clock information, the display module can display the clock when the user is on the screen; alternatively, the user may want to view the calendar, and the display module may display the calendar while on the screen.
In this embodiment, the processor needs to send the display information to be displayed by the display module to the display module in advance, so that the display module can display the display information when the processor is in the sleep state. Alternatively, the processor may generate the control instruction and carry the display information in the control instruction.
Alternatively, the display information may include the first picture and the second picture in addition to information that the user wants to display (such as the above-mentioned clock information, calendar information, and the like). The first picture is used for prompting a user to input fingerprints, and the second picture is used for providing a light source for collecting fingerprints when displayed.
In one possible implementation, the first picture may be a fingerprint-like picture to prompt the user to enter a fingerprint.
In one possible implementation, the second picture may be a picture with a display brightness higher than the display brightness when the display screen is normally displaying, i.e. the second picture may be a highlighted picture. Alternatively, since the fingerprint recognition module is sensitive to cyan light or green light, if the picture generating cyan light or green light is referred to as a cyan spot picture, the second picture may be a highlighted cyan spot picture. The second picture may be of a predetermined shape, and the predetermined shape is related to the shape of the effective identification area of the fingerprint identification module. For example, when the effective recognition area of the fingerprint recognition module is circular, the predetermined shape is circular; when the effective identification area of the fingerprint identification module is square, the predetermined shape is square, which is not limited in this embodiment.
In step 202, the display module stores the first picture and the second picture, and displays the first picture in the off-screen display mode.
When the display module includes a memory, the display module may store the first picture and the second picture in the memory. Optionally, when the display information in the control instruction further includes other information (such as the above-mentioned clock information, calendar information, etc.), the display module may further store the other information in the memory.
The display module is switched from a normal display mode to a screen-off display mode, and displays a first picture in the screen-off display mode. Optionally, when the display information in the control instruction further includes other information (such as the above-mentioned clock information, calendar information, etc.), the display module may further display the other information in the off-screen display mode.
In a first implementation manner, when the recognition area of the fingerprint recognition module is smaller than the predetermined threshold, the predetermined threshold may be the maximum contact area between the finger of the user and the touch module, that is, when the recognition area of the fingerprint recognition module is smaller, the display module may acquire the position of the fingerprint recognition module, and display the first picture at the position.
In a second implementation manner, when the recognition area of the fingerprint recognition module is greater than or equal to the predetermined threshold, that is, when the recognition area of the fingerprint recognition module is greater, the display module may display the first picture at any position in the recognition area of the fingerprint recognition module.
For example, the recognition area of the fingerprint recognition module is the lower half of the display screen, at this time, the touch module needs to obtain the position of the finger of the user in the lower half of the screen, and send the position information for indicating the position to the display module, and the display module takes the position indicated by the position information as the predetermined position, and displays the second picture at the position.
In step 203, when the display module is in the inactive display mode, the touch module obtains a touch signal.
When the display module is in the screen-off display mode, the user touches the terminal with his finger, and at this time, the touch module in the terminal may directly determine the received input signal as a touch signal, and then execute step 204. Because the finger of the user may inadvertently touch the terminal due to misoperation, if the user wakes up the processor in response to the operation at this time, the processing resource of the terminal is wasted, so that optionally, the touch module can also detect whether the input signal is generated by misoperation, if the input signal is generated by misoperation, the user does not respond to the input signal; if the input signal is not generated by a malfunction, step 204 is performed.
In this embodiment, the touch module may acquire an input signal and acquire information of the input signal, where the information includes at least one of position information of a finger, area information of a contact area between the finger and the touch module, and pressing force information of the finger; detecting whether the information meets a preset condition; and when the information meets the preset condition, determining the input signal as a touch signal.
It should be noted that, when the touch module does not include the pressure sensor, the touch module may acquire at least one of the position information and the area information according to the input signal; when the touch module comprises a pressure sensor, the touch module can acquire at least one of position information, area information and pressing force information according to an input signal.
The preset condition is related to the content included in the information. For example, when a finger of a user touches an edge position of the touch module, the operation may be regarded as a false operation, so when the information includes position information, a preset condition that the position indicated by the position information is located in a predetermined area may be set. When the touch module is lightly touched by a finger of a user, the operation can be considered as misoperation, so when the information comprises area information, a preset condition that the contact area indicated by the area information is larger than a first threshold value can be set; and/or when the information includes the pressing force information, a preset condition that the pressing force indicated by the pressing force information is greater than the second threshold may be set.
For example, when the information includes position information and area information, the preset condition is that the position indicated by the position information is located in a predetermined area and the contact area indicated by the area information is greater than a first threshold, the touch module may detect whether the position indicated by the position information is located in the predetermined area and detect whether the contact area indicated by the area information is greater than the first threshold, and if the position is located in the predetermined area and the contact area is greater than the first threshold, determine that the information meets the preset condition; if the position is outside the preset area or the contact area is smaller than or equal to a first threshold value, determining that the information does not meet the preset condition.
In step 204, the touch module sends interrupt signals to the processor and the display module respectively under the control of the touch signal.
In this embodiment, the communication pin of the touch module may be connected to the DDIC in the display module, and at this time, the touch module may send an interrupt signal to the display module.
In step 205, the display module conceals the first picture displayed in the screen-off display mode and displays the second picture at a predetermined position in the fingerprint acquisition display mode under the triggering of the interrupt signal.
The fingerprint acquisition mode refers to a display mode of the display module when the fingerprint identification module performs fingerprint acquisition. Optionally, the display module may display the second picture in the fingerprint acquisition mode.
Optionally, the display module may further determine a position of the finger of the user according to the position information, determine the position as a predetermined position, and display the second picture at the predetermined position.
In a first implementation manner, when the recognition area of the fingerprint recognition module is smaller than the predetermined threshold, the predetermined threshold may be the maximum contact area between the finger of the user and the touch module, and the predetermined position is the position where the fingerprint recognition module is located. That is, when the recognition area of the fingerprint recognition module is smaller, the display module can obtain the position of the fingerprint recognition module and display the second picture at the position. At this time, the display module may replace the displayed first picture with the second picture at the predetermined position.
In a second implementation manner, when the identification area of the fingerprint identification module is greater than or equal to a predetermined threshold, the method further includes: the touch control module determines the position information of the finger of the user according to the touch control signal and sends the position information to the display module; the display module determines the position indicated by the position information as a predetermined position. Accordingly, in step 204, the touch module needs to send the position information to the display module in addition to sending the interrupt signal to the display module.
For example, the recognition area of the fingerprint recognition module is the lower half of the display screen, at this time, the touch module needs to obtain the position of the finger of the user in the lower half of the screen, and send the position information for indicating the position to the display module, and the display module takes the position indicated by the position information as the predetermined position, and displays the second picture at the position. Because the position information can position the preset position of the finger of the user, the display module can display the second picture at the preset position without displaying the second picture in the whole recognition area of the fingerprint recognition module, and the power consumption when displaying the second picture in a large area can be saved.
In step 206, the processor controls the fingerprint recognition module to perform fingerprint recognition at the designated location under the triggering of the interrupt signal.
After receiving the interrupt signal, the processor can instruct the fingerprint identification module to acquire the fingerprint at the preset position, the fingerprint identification module sends the acquired fingerprint to the processor, the processor detects whether the fingerprint is identical to a pre-stored fingerprint, and when the fingerprint is identical to the pre-stored fingerprint, the processor determines that the identity authentication of the user passes, and controls the display module to switch to a bright screen mode; when the fingerprint is different from the prestored fingerprint, determining that the authentication of the user fails, and not responding to the operation, namely displaying the first picture in the screen-extinguishing display mode, or prompting the user to input the fingerprint again for recognition.
In the following, the timing of the related art and the embodiments of the present disclosure are compared to facilitate understanding of the present embodiment, referring to fig. 3, the upper diagram in fig. 3 shows the timing of the fingerprint identification method in the related art, and the lower diagram shows the timing of the fingerprint identification method in the present embodiment. Therefore, in the related art, the touch module only sends an interrupt signal to the processor, and the processor notifies the display module to switch from the screen display mode to the fingerprint acquisition display mode after a series of processing is required, and the fingerprint recognition module can perform fingerprint recognition after the display module is switched to the fingerprint acquisition display mode. In this embodiment, the touch module may send an interrupt signal to the processor and the display module at the same time, at this time, the display module may be switched from the screen display mode to the fingerprint acquisition display mode, and at the same time, the processor may perform a series of processing to notify the fingerprint identification module to perform fingerprint identification, and after the display module is switched to the fingerprint acquisition display mode, the fingerprint identification module may perform fingerprint identification, so that a step that the processor notifies the display module to perform mode switching is saved, thereby shortening a period of link fingerprint identification, and improving fingerprint identification efficiency. In addition, the period of fingerprint identification is shortened, so that the problem that the acquired fingerprint is unclear due to the fact that a user easily shakes when keeping one action for a long time when the period of fingerprint identification is long is avoided, and the accuracy of fingerprint identification is improved.
Referring to fig. 4, the flow of the fingerprint identification method is described taking the example that the display information includes clock information, a first picture and a second picture, wherein the first picture is a fingerprint picture, and the second picture is a cyan-spot picture.
In step 401, the processor sends an instruction to the display module to instruct the display module to enter an AOD mode, which is an off-screen display mode.
In step 402, the processor sends display information to the display module, the display information including clock information, a fingerprint picture, and a cyan patch picture.
In step 403, the display module stores the display information in the memory.
In step 404, the display module reads the clock information and the fingerprint picture, and displays the clock information and the fingerprint picture at corresponding positions on the screen.
In step 405, the display module determines whether an interrupt signal sent by the touch module is received; when the interrupt signal is received, step 406 is performed; when the interrupt signal is not received, step 407 is performed.
In step 406, the display module reads the cyan-spot picture, and displays the cyan-spot picture at a corresponding position on the screen. Wherein the corresponding position is the predetermined position mentioned above.
In step 407, the display module continues to display the clock information and the fingerprint picture.
In summary, according to the fingerprint identification method provided by the disclosure, since the touch module is connected with the display module, after receiving the touch signal, the touch module can respectively send the interrupt signal to the processor and the display module, so that the display module can be directly switched to the fingerprint acquisition display mode according to the interrupt signal, and meanwhile, the processor can control the fingerprint identification module to carry out fingerprint identification, so that when the touch module is not connected with the display module, the display module needs to be switched to the fingerprint acquisition display mode under the control of the processor, the fingerprint identification module carries out fingerprint identification again, the period of fingerprint identification is long, and the fingerprint identification efficiency is low, thereby improving the fingerprint identification efficiency and the user experience.
In addition, the period of fingerprint identification is shortened, so that the problem that the acquired fingerprint is unclear due to the fact that a user easily shakes when keeping one action for a long time when the period of fingerprint identification is long is avoided, and the accuracy of fingerprint identification is improved.
Because the position information can position the preset position of the finger of the user, the display module can display the second picture at the preset position without displaying the second picture in the whole recognition area of the fingerprint recognition module, and the power consumption when displaying the second picture in a large area can be saved.
Fig. 5 is a block diagram illustrating a terminal according to an exemplary embodiment, the terminal includes a processor 510, a fingerprint recognition module 520 and a touch module 530 respectively connected to the processor 510, and a display module 540 connected to the touch module 530, and the fingerprint recognition module 520 is located at a lower layer of the display module 540.
The touch module 530 is configured to obtain a touch signal when the display module 540 is in the inactive display mode;
the touch module 530 is further configured to send interrupt signals to the processor 510 and the display module 540 under the control of the touch signals, respectively;
the display module 540 is configured to switch the screen display mode to a fingerprint acquisition display mode under the triggering of the interrupt signal, wherein the fingerprint acquisition display mode is a display mode when acquiring fingerprints;
the processor 510 is configured to control the fingerprint recognition module 520 to perform fingerprint recognition based on the fingerprint acquisition display mode under the triggering of the interrupt signal.
To sum up, the terminal that this disclosure provided, because touch module links to each other with the display module, so, touch module is after receiving touch signal, can send interrupt signal to treater and display module respectively, like this, the display module can be directly according to interrupt signal switching to fingerprint acquisition display mode, simultaneously, the treater can control fingerprint identification module and carry out fingerprint identification, when having avoided touch module and display module to link to each other, the display module needs to switch to fingerprint acquisition display mode under the control of treater, fingerprint identification module carries out fingerprint identification again, lead to fingerprint identification's cycle longer, fingerprint identification inefficiency's problem, thereby fingerprint identification's efficiency has been improved, user's experience has also been promoted.
In addition, the period of fingerprint identification is shortened, so that the problem that the acquired fingerprint is unclear due to the fact that a user easily shakes when keeping one action for a long time when the period of fingerprint identification is long is avoided, and the accuracy of fingerprint identification is improved.
Referring to the terminal shown in fig. 5, the terminal includes a processor 510, a fingerprint recognition module 520 and a touch module 530 respectively connected to the processor 510, and a display module 540 connected to the touch module 530, wherein the fingerprint recognition module 520 is located at a lower layer of the display module 540.
The touch module 530 is configured to obtain a touch signal when the display module 540 is in the inactive display mode;
the touch module 530 is further configured to send interrupt signals to the processor 510 and the display module 540 under the control of the touch signals, respectively;
the display module 540 is configured to switch the screen display mode to a fingerprint acquisition display mode under the triggering of the interrupt signal, wherein the fingerprint acquisition display mode is a display mode when acquiring fingerprints;
the processor 510 is configured to control the fingerprint recognition module 520 to perform fingerprint recognition based on the fingerprint acquisition display mode under the triggering of the interrupt signal.
In one possible implementation, the 540 display module is further configured to:
under the triggering of the interrupt signal, hiding a first picture displayed in the screen-off display mode, and displaying a second picture at a preset position in the fingerprint acquisition display mode, wherein the first picture is used for prompting a user to input a fingerprint, and the second picture is used for providing a light source for acquiring the fingerprint when displayed.
In a possible implementation manner, the processor 510 is further configured to send a control instruction to the display module, where the control instruction includes a first picture and a second picture;
the display module 540 is further configured to store the first picture and the second picture, and display the first picture in a screen-off display mode.
In one possible implementation, when the identification area of the fingerprint identification module is smaller than a predetermined threshold, the predetermined position is the position where the fingerprint identification module is located.
In one possible implementation, when the identification area of the fingerprint identification module is greater than or equal to a predetermined threshold,
the touch module 530 is further configured to determine position information of a finger of the user according to the touch signal, and send the position information to the display module;
the display module 540 is further configured to determine the location indicated by the location information as a predetermined location.
In one possible implementation, the touch module 530 is further configured to:
acquiring an input signal and acquiring information of the input signal, wherein the information comprises at least one of position information of a finger, area information of a contact area between the finger and a touch module and pressing force information of the finger;
detecting whether the information meets preset conditions;
and when the information meets the preset condition, determining the input signal as a touch signal.
To sum up, the terminal that this disclosure provided, because touch module links to each other with the display module, so, touch module is after receiving touch signal, can send interrupt signal to treater and display module respectively, like this, the display module can be directly according to interrupt signal switching to fingerprint acquisition display mode, simultaneously, the treater can control fingerprint identification module and carry out fingerprint identification, when having avoided touch module and display module to link to each other, the display module needs to switch to fingerprint acquisition display mode under the control of treater, fingerprint identification module carries out fingerprint identification again, lead to fingerprint identification's cycle longer, fingerprint identification inefficiency's problem, thereby fingerprint identification's efficiency has been improved, user's experience has also been promoted.
In addition, the period of fingerprint identification is shortened, so that the problem that the acquired fingerprint is unclear due to the fact that a user easily shakes when keeping one action for a long time when the period of fingerprint identification is long is avoided, and the accuracy of fingerprint identification is improved.
Because the position information can position the preset position of the finger of the user, the display module can display the second picture at the preset position without displaying the second picture in the whole recognition area of the fingerprint recognition module, and the power consumption when displaying the second picture in a large area can be saved.
The specific manner in which the respective modules perform the operations in the terminal in the above embodiments has been described in detail in the embodiments related to the method, and will not be described in detail herein.
Fig. 6 is a block diagram illustrating an apparatus 600 for fingerprint identification, according to an example embodiment. For example, apparatus 600 may be a mobile phone, computer, digital broadcast terminal, messaging device, game console, tablet device, medical device, exercise device, personal digital assistant, or the like.
Referring to fig. 6, apparatus 600 may include one or more of the following components: a processing component 602, a memory 604, a power component 606, a multimedia component 608, an audio component 610, an input/output (I/O) interface 612, a sensor component 614, and a communication component 616.
The processing component 602 generally controls overall operation of the apparatus 600, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing element 602 may include one or more processors 620 to execute instructions to perform all or part of the steps of the methods described above. Further, the processing component 602 can include one or more modules that facilitate interaction between the processing component 602 and other components. For example, the processing component 602 may include a multimedia module to facilitate interaction between the multimedia component 608 and the processing component 602.
The memory 604 is configured to store various types of data to support operations at the device 600. Examples of such data include instructions for any application or method operating on the apparatus 600, contact data, phonebook data, messages, pictures, videos, and the like. The memory 604 may be implemented by any type or combination of volatile or nonvolatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.
The power component 606 provides power to the various components of the device 600. The power components 606 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the device 600.
The multimedia component 608 includes a screen between the device 600 and the user that provides an output interface. In some embodiments, the screen may include a Liquid Crystal Display (LCD), which may be referred to as a display module, and a Touch Panel (TP), which may be referred to as a touch module. If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may sense not only the boundary of a touch or slide action, but also the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 608 includes a front camera and/or a rear camera. The front-facing camera and/or the rear-facing camera may receive external multimedia data when the device 600 is in an operational mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have focal length and optical zoom capabilities.
The audio component 610 is configured to output and/or input audio signals. For example, the audio component 610 includes a Microphone (MIC) configured to receive external audio signals when the apparatus 600 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may be further stored in the memory 604 or transmitted via the communication component 616. In some embodiments, audio component 610 further includes a speaker for outputting audio signals.
The I/O interface 612 provides an interface between the processing component 602 and peripheral interface modules, which may be a keyboard, click wheel, buttons, etc. These buttons may include, but are not limited to: homepage button, volume button, start button, and lock button.
The sensor assembly 614 includes one or more sensors for providing status assessment of various aspects of the apparatus 600. For example, the sensor assembly 614 may detect the on/off state of the device 600, the relative positioning of the components, such as the display and keypad of the apparatus 600, the sensor assembly 614 may also detect a change in position of the apparatus 600 or one of the components of the apparatus 600, the presence or absence of user contact with the apparatus 600, the orientation or acceleration/deceleration of the apparatus 600, and a change in temperature of the apparatus 600. The sensor assembly 614 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact. The sensor assembly 614 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 614 may also include an acceleration sensor, a gyroscopic sensor, a magnetic sensor, a pressure sensor, a fingerprint identification sensor, or a temperature sensor.
The communication component 616 is configured to facilitate communication between the apparatus 600 and other devices in a wired or wireless manner. The device 600 may access a wireless network based on a communication standard, such as WiFi,2G or 3G, or a combination thereof. In one exemplary embodiment, the communication part 616 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 616 further includes a Near Field Communication (NFC) module to facilitate short range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra Wideband (UWB) technology, bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the apparatus 600 may be implemented by one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic elements for executing the methods described above.
In an exemplary embodiment, a non-transitory computer-readable storage medium is also provided, such as memory 604, including instructions executable by processor 620 of apparatus 600 to perform the above-described method. For example, the non-transitory computer readable storage medium may be ROM, random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (8)

1. The fingerprint identification method is characterized by being used in a terminal, wherein the terminal comprises a processor, a fingerprint identification module, a touch module and a display module, wherein the fingerprint identification module and the touch module are respectively connected with the processor, the display module is connected with the touch module, the fingerprint identification module is positioned at the lower layer of the display module, and the method comprises the following steps:
when the display module is in a screen-off display mode, the touch module acquires a touch signal;
The touch control module sends an interrupt signal to the processor and the display module under the control of the touch control signal;
the display module is triggered by the interrupt signal, and is used for hiding a first picture displayed in the screen-extinguishing display mode and displaying a second picture at a preset position in the fingerprint acquisition display mode, wherein the first picture is used for prompting a user to input a fingerprint, the second picture is used for providing a light source for acquiring the fingerprint during display, and the fingerprint acquisition display mode is a display mode for acquiring the fingerprint;
the processor controls the fingerprint identification module to carry out fingerprint identification based on the fingerprint acquisition display mode under the triggering of the interrupt signal, and the display module is directly switched to the fingerprint acquisition display mode according to the interrupt signal and simultaneously controls the fingerprint identification module to carry out fingerprint identification;
when the identification area of the fingerprint identification module is smaller than a preset threshold value, the preset position is the position where the fingerprint identification module is located; or when the identification area of the fingerprint identification module is larger than or equal to the preset threshold value, the preset position is the position indicated by the position information of the finger of the user.
2. The method according to claim 1, wherein the method further comprises:
the processor sends a control instruction to the display module, wherein the control instruction comprises the first picture and the second picture;
and the display module stores the first picture and the second picture, and displays the first picture in the screen-off display mode.
3. The method of claim 1, wherein when the identification area of the fingerprint identification module is greater than or equal to the predetermined threshold, the method further comprises:
the touch control module determines the position information of the finger of the user according to the touch control signal and sends the position information to the display module;
and the display module determines the position indicated by the position information as the preset position.
4. A method according to any one of claims 1 to 3, wherein the touch module obtains a touch signal, comprising:
the touch control module acquires an input signal and information of the input signal, wherein the information comprises at least one of position information of a finger, area information of a contact area between the finger and the touch control module and pressing force information of the finger;
The touch module detects whether the information meets a preset condition;
and when the information meets the preset condition, the touch control module determines the input signal as the touch control signal.
5. The terminal is characterized by comprising a processor, a fingerprint identification module, a touch module and a display module, wherein the fingerprint identification module and the touch module are respectively connected with the processor, the display module is connected with the touch module, and the fingerprint identification module is positioned at the lower layer of the display module;
the touch control module is configured to acquire a touch control signal when the display module is in a screen-off display mode;
the touch control module is further configured to send an interrupt signal to the processor and the display module at the same time under the control of the touch control signal;
the display module is configured to hide a first picture displayed in the screen-off display mode under the triggering of the interrupt signal, and display a second picture at a preset position in the fingerprint acquisition display mode, wherein the first picture is used for prompting a user to input a fingerprint, the second picture is used for providing a light source when acquiring the fingerprint during display, and the fingerprint acquisition display mode is a display mode when acquiring the fingerprint;
The processor is configured to control the fingerprint identification module to carry out fingerprint identification based on the fingerprint acquisition display mode under the triggering of the interrupt signal, and the display module is directly switched to the fingerprint acquisition display mode according to the interrupt signal and simultaneously controls the fingerprint identification module to carry out fingerprint identification;
when the identification area of the fingerprint identification module is smaller than a preset threshold value, the preset position is the position where the fingerprint identification module is located; or when the identification area of the fingerprint identification module is larger than or equal to a preset threshold value, the preset position is the position indicated by the position information of the finger of the user.
6. The terminal of claim 5, wherein the terminal comprises a base station,
the processor is further configured to send a control instruction to the display module, wherein the control instruction comprises the first picture and the second picture;
the display module is further configured to store the first picture and the second picture, and display the first picture in the screen-off display mode.
7. The terminal of claim 5, wherein when the recognition area of the fingerprint recognition module is greater than or equal to the predetermined threshold,
The touch control module is further configured to determine position information of a finger of a user according to the touch control signal and send the position information to the display module;
the display module is further configured to determine a position indicated by the position information as the predetermined position.
8. The terminal of any of claims 5 to 7, wherein the touch module is further configured to:
acquiring an input signal and acquiring information of the input signal, wherein the information comprises at least one of position information of a finger, area information of a contact area between the finger and the touch module and pressing force information of the finger;
detecting whether the information meets a preset condition or not;
and when the information meets the preset condition, determining the input signal as the touch signal.
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