WO2022156555A1 - Screen brightness adjustment method, apparatus, and terminal device - Google Patents

Screen brightness adjustment method, apparatus, and terminal device Download PDF

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Publication number
WO2022156555A1
WO2022156555A1 PCT/CN2022/071099 CN2022071099W WO2022156555A1 WO 2022156555 A1 WO2022156555 A1 WO 2022156555A1 CN 2022071099 W CN2022071099 W CN 2022071099W WO 2022156555 A1 WO2022156555 A1 WO 2022156555A1
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WO
WIPO (PCT)
Prior art keywords
brightness
fingerprint
terminal device
spot
finger
Prior art date
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PCT/CN2022/071099
Other languages
French (fr)
Chinese (zh)
Inventor
蔡奇
黄宗兴
彭旭
邓凯锋
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华为技术有限公司
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Publication of WO2022156555A1 publication Critical patent/WO2022156555A1/en

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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

Definitions

  • the embodiments of the present application relate to the technical field of intelligent terminals, and in particular, to a method, an apparatus, and a terminal device for adjusting screen brightness.
  • under-screen optical fingerprint solution In response to market demand, displays in terminal devices (such as mobile phones or tablet computers) are gradually developing towards full-screen displays, pursuing higher and higher screen-to-body ratios, resulting in the emergence of under-screen optical fingerprint solutions.
  • the light with fingerprint information can penetrate the screen to reach the surface of the optical fingerprint sensor (sensor) for imaging, and combined with software algorithms, the fingerprint recognition function can be realized.
  • the touch function of the screen is used to confirm whether the pressing position of the finger and the pressing area of the fingerprint meet the requirements of fingerprint-triggered image capture. If the pressed position is consistent with the structure of the fingerprint, and the pressed area of the fingerprint exceeds the proportion of the projected spot of the fingerprint (for example, more than 50%), the operating system of the terminal device will issue a fingerprint capture notification, and the light spot in the corresponding area of the screen will be bright to a fixed brightness (for example, : 600nit).
  • the fingerprint sensor receives the image collection notification, according to the set fixed image collection parameters (for example, the exposure time is 50-60ms), the corresponding fingerprint image is obtained after the exposure is completed. open. Then, based on the acquired fingerprint image, subsequent matching identification is performed.
  • Embodiments of the present application provide a method, apparatus, and terminal device for adjusting screen brightness, and embodiments of the present application also provide a computer-readable storage medium, so as to reduce the brightness in dim scenes without affecting the quality of fingerprint images.
  • the brightness of the fingerprint spot can improve the glare problem of the spot.
  • an embodiment of the present application provides a method for adjusting screen brightness, including: after a terminal device detects a pressing operation of a user's finger on the display screen of the terminal device, determining whether the pressing operation of the finger and the pressing area of the fingerprint satisfy The trigger condition for fingerprint collection; if it is satisfied, obtain the brightness of the environment where the terminal device is currently located; in response to determining that the brightness of the environment where the terminal device is currently located is the first brightness, determine that the brightness of the fingerprint spot is the first spot brightness, and determine The exposure duration of the fingerprint spot is the first duration; in response to determining that the brightness of the environment where the terminal device is currently located is the second brightness, the brightness of the fingerprint spot is determined to be the second spot brightness, and the exposure duration of the fingerprint spot is determined to be the second duration ; wherein, the brightness of the first light spot is different from the brightness of the second light spot, and the first duration is different from the second duration; after the exposure duration ends, the fingerprint image of the user's finger collected by the fingerprint image sensor is
  • the pressing operation of the finger and the pressing area of the fingerprint to satisfy the trigger condition for fingerprint acquisition may be: the pressing position of the finger matches the position of the fingerprint light spot, and the area of the pressing area of the fingerprint is the same as that of the fingerprint.
  • the ratio of the areas of the light spots is greater than or equal to a predetermined threshold.
  • the first spot brightness is less than or equal to the second spot brightness
  • the first duration is greater than or equal to the second duration
  • a notification of image acquisition is sent to the fingerprint image sensor.
  • the terminal device obtains the brightness of the environment in which the terminal device is currently located through an ambient light sensor, and determines the brightness of the fingerprint spot and the exposure duration of the fingerprint spot according to the brightness.
  • the current spot of under-screen optical fingerprints in dark environments is effectively improved. dazzling question.
  • an embodiment of the present application provides a method for collecting an under-screen optical fingerprint, including: after a terminal device detects a pressing operation of a user's finger on the display screen of the terminal device, determining the pressing operation of the finger and the pressing of the fingerprint Whether the area satisfies the trigger condition for fingerprint acquisition; if so, obtain the brightness of the current environment where the terminal device is located; determine the brightness of the fingerprint spot according to the brightness of the current environment where the terminal device is located; and select the image sensor corresponding to the above brightness a unit array, to determine the photoelectric conversion efficiency of the hardware unit corresponding to the image sensing unit array, the effective light-receiving area of the pixel and the exposure duration; after the exposure duration ends, obtain the fingerprint image of the user's finger collected by the fingerprint image sensor; wherein, the above The fingerprint image is collected by the fingerprint image sensor through the image sensing unit array corresponding to the above-mentioned brightness; the above-mentioned fingerprint image is matched and identified.
  • the above-mentioned pressing operation of the finger and the pressing area of the fingerprint to satisfy the triggering condition for fingerprint acquisition may be: the pressing position of the finger matches the position of the fingerprint spot, and the area of the pressing area of the fingerprint is the same as the above-mentioned The ratio of the areas of the fingerprint spots is greater than or equal to a predetermined threshold.
  • the brightness of the fingerprint spot is determined according to the brightness of the environment where the terminal device is currently located; and an image sensing unit array corresponding to the above-mentioned brightness is selected to determine the photoelectricity of the hardware unit corresponding to the above-mentioned image sensing unit array.
  • the conversion efficiency, the effective light-receiving area of the pixel, and the exposure duration may be: in response to determining that the brightness of the environment where the terminal device is currently located is the first brightness, determining that the brightness of the fingerprint spot is the first spot brightness, and determining the brightness corresponding to the first brightness.
  • the image sensing unit array is the first image sensing unit array, and the photoelectric conversion efficiency of the hardware unit corresponding to the first image sensing unit array, the effective light-receiving area of the pixel, and the exposure duration are determined as the first photoelectric conversion efficiency, the first effective photoelectric conversion efficiency, and the first effective photoelectric conversion efficiency.
  • determining that the brightness of the environment where the terminal device is currently located is the second brightness
  • determining that the brightness of the fingerprint spot is the second spot brightness
  • determining that the image sensing unit array corresponding to the second brightness is the second image sensing unit array
  • determining The photoelectric conversion efficiency of the hardware unit corresponding to the second image sensing unit array, the effective light-receiving area of the pixel, and the exposure duration are the second photoelectric conversion efficiency, the second effective light-receiving area, and the second duration, respectively;
  • the first light spot brightness is different from the second light spot brightness
  • the first photoelectric conversion efficiency is different from the second photoelectric conversion efficiency
  • the first effective light receiving area is different from the second effective light receiving area
  • the first duration is different from the second duration
  • the first brightness when the first brightness is less than the second brightness, the brightness of the first spot is less than or equal to the brightness of the second spot, the first photoelectric conversion efficiency is greater than or equal to the second photoelectric conversion efficiency, and the first effective light receiving The area is greater than or equal to the second effective light-receiving area, and the first duration is greater than or equal to the second duration.
  • a notification of image acquisition is sent to the fingerprint image sensor. , to instruct the above-mentioned fingerprint image sensor to collect the fingerprint image of the user's finger.
  • the terminal device obtains the brightness of the environment in which the terminal device is currently located through an ambient light sensor, and determines the brightness of the fingerprint spot according to the brightness; and selects an image sensing unit array corresponding to the brightness to determine the image transmission.
  • the sensing unit array corresponds to the photoelectric conversion efficiency of the hardware unit, the effective light-receiving area of the pixel and the exposure time.
  • the fingerprint image sensor selects image sensing unit arrays with different sensitivities to collect fingerprint images, which effectively improves the current screen. The problem of dazzling light spots in the dark environment of optical fingerprints.
  • an embodiment of the present application provides an under-screen optical fingerprint collection device, the device is included in a terminal device, and the device has a function of implementing the behavior of the terminal device in the first aspect and possible implementations of the first aspect.
  • the functions can be implemented by hardware, or by executing corresponding software by hardware.
  • the hardware or software includes one or more modules or units corresponding to the above functions. For example, a receiving module or unit, a processing module or unit, a transmitting module or unit, and the like.
  • an embodiment of the present application provides a device for collecting an under-screen optical fingerprint, the device is included in a terminal device, and the device has a function of implementing the behavior of the terminal device in the second aspect and possible implementations of the second aspect.
  • the functions can be implemented by hardware, or by executing corresponding software by hardware.
  • the hardware or software includes one or more modules or units corresponding to the above functions. For example, a receiving module or unit, a processing module or unit, a transmitting module or unit, and the like.
  • an embodiment of the present application provides a terminal device, including:
  • the above-mentioned terminal equipment is caused to perform the following steps: after detecting the pressing operation of the user's finger on the display screen of the terminal equipment, determine whether the pressing operation of the finger and the pressing area of the fingerprint satisfy the triggering condition of fingerprint sampling; If satisfied, then obtain the brightness of the environment where the terminal device is currently located; in response to determining that the brightness of the environment where the terminal device is currently located is the first brightness, determine the brightness of the fingerprint spot as the first spot brightness, and determine the exposure duration of the fingerprint spot as a first duration; in response to determining that the brightness of the environment where the terminal device is currently located is the second brightness, determining the brightness of the fingerprint spot as the second spot brightness, and determining the exposure duration of the fingerprint spot as the second duration; wherein, the first spot brightness Different
  • the above-mentioned pressing operation of the finger and the pressing area of the fingerprint to satisfy the triggering condition for fingerprint acquisition may be: the pressing position of the finger matches the position of the fingerprint spot, and the area of the pressing area of the fingerprint is the same as the above-mentioned The ratio of the areas of the fingerprint spots is greater than or equal to a predetermined threshold.
  • the first spot brightness is less than or equal to the second spot brightness
  • the first duration is greater than or equal to the second duration
  • the following steps are also performed: If the pressing area satisfies the trigger condition for fingerprint capture, a capture notification is sent to the fingerprint image sensor to instruct the fingerprint image sensor to capture the fingerprint image of the user's finger.
  • an embodiment of the present application provides a terminal device, including: one or more processors; a memory; a plurality of application programs; and one or more computer programs, wherein the one or more computer programs are stored in the above In the memory, the above-mentioned one or more computer programs include instructions, and when the above-mentioned instructions are executed by the terminal device, the terminal device is caused to perform the following steps: after detecting the pressing operation of the user's finger on the display screen of the terminal device, determine the pressing operation of the above-mentioned finger And whether the pressing area of the fingerprint satisfies the triggering condition of fingerprint sampling; if so, obtain the brightness of the environment where the terminal device is currently located; determine the brightness of the fingerprint spot according to the brightness of the environment where the terminal device is currently located; For the corresponding image sensing unit array, determine the photoelectric conversion efficiency of the hardware unit corresponding to the image sensing unit array, the effective light-receiving area of the pixel, and the exposure duration; after the exposure duration ends,
  • the above-mentioned pressing operation of the finger and the pressing area of the fingerprint satisfy the triggering condition for fingerprint capture may be: the pressing position of the finger matches the position of the fingerprint spot, and the area of the pressing area of the fingerprint is the same as that of the fingerprint.
  • the ratio of the areas of the fingerprint light spots is greater than or equal to a predetermined threshold.
  • the terminal device when the above instruction is executed by the terminal device, the terminal device is made to determine the brightness of the fingerprint spot according to the brightness of the environment where the terminal device is currently located; and select an image sensing unit corresponding to the above brightness.
  • the steps of determining the photoelectric conversion efficiency of the hardware unit corresponding to the image sensing unit array, the effective light-receiving area of the pixel and the exposure duration may be: in response to determining that the brightness of the environment where the terminal device is currently located is the first brightness, determining the fingerprint spot.
  • the brightness of the first light spot is the brightness of the first light spot
  • the image sensing unit array corresponding to the first brightness is determined as the first image sensing unit array
  • the photoelectric conversion efficiency of the hardware unit corresponding to the first image sensing unit array and the effective reception rate of the pixel are determined.
  • the light area and the exposure duration are respectively the first photoelectric conversion efficiency, the first effective light-receiving area, and the first duration; in response to determining that the brightness of the environment where the terminal device is currently located is the second brightness, the brightness of the fingerprint spot is determined to be the second spot brightness , and determine that the image sensing unit array corresponding to the above-mentioned second brightness is the second image sensing unit array, and determine the photoelectric conversion efficiency of the hardware unit corresponding to the second image sensing unit array, the effective light-receiving area of the pixel and the exposure time respectively are the second photoelectric conversion efficiency, the second effective light-receiving area, and the second duration; wherein, the brightness of the first light spot is different from the brightness of the second light spot, the first photoelectric conversion efficiency is different from the second photoelectric conversion efficiency, and the first effective light-receiving area is Different from the second effective light-receiving area, the first duration is different from the second duration.
  • the first brightness when the first brightness is less than the second brightness, the brightness of the first spot is less than or equal to the brightness of the second spot, the first photoelectric conversion efficiency is greater than or equal to the second photoelectric conversion efficiency, and the first effective light receiving The area is greater than or equal to the second effective light-receiving area, and the first duration is greater than or equal to the second duration.
  • the following steps are also performed: if the pressing operation of the finger and the fingerprint If the pressed area meets the trigger condition for fingerprint capture, a capture notification is sent to the fingerprint image sensor to instruct the fingerprint image sensor to capture the fingerprint image of the user's finger.
  • an embodiment of the present application provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when the computer program runs on a computer, causes the computer to execute the method provided in the first aspect.
  • an embodiment of the present application provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when it runs on a computer, causes the computer to execute the method provided in the second aspect.
  • an embodiment of the present application provides a computer program for executing the method provided in the first aspect when the computer program is executed by a computer.
  • an embodiment of the present application provides a computer program for executing the method provided in the second aspect when the computer program is executed by a computer.
  • the programs of the ninth aspect and the tenth aspect may be stored in whole or in part on a storage medium packaged with the processor, or may be stored in part or in part in a storage medium not packaged with the processor on the memory.
  • FIG. 1 is a schematic structural diagram of a typical under-screen optical fingerprint imaging system provided in the related art
  • Fig. 2 is the graph that the image quality of the optical fingerprint under the screen provided by the prior art changes with the screen brightness
  • FIG. 3 is a schematic structural diagram of a terminal device provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of an under-screen optical fingerprint imaging provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of the relationship between the image quality of the under-screen optical fingerprint, exposure time and screen brightness according to an embodiment of the present application
  • FIG. 6 is a flowchart of a method for adjusting screen brightness provided by an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a pixel distribution of a conventional fingerprint image sensor
  • FIG. 8 is a schematic diagram of a mosaic of pixels with different sensitivity provided by an embodiment of the present application.
  • FIG. 9 is a flowchart of a method for adjusting screen brightness provided by another embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a terminal device provided by another embodiment of the present application.
  • FIG. 1 is a schematic structural diagram of a typical under-screen optical fingerprint imaging system provided in the related art.
  • the fingerprint collection process of the system is as follows: when starting to collect the fingerprint image, the human finger 1 is placed above the organic light-emitting diode (organic light-emitting diode, OLED) display screen 2; the OLED display screen 2 emits light as a light source to generate emission light 4; After light 4 propagates upward and reaches the surface of the finger, it will be reflected to form reflected light 5; the difference in contact formed by different areas of human fingers (such as “valley” and "ridge") when they are attached to the OLED display screen 2 will cause reflected light in different areas.
  • OLED organic light-emitting diode
  • Fig. 1, 6 is the disturbance light of the external environment.
  • the process of capturing an optical fingerprint under the screen may be as follows: after the display screen of the terminal device detects the pressing action of the user's finger, the touch function of the screen is used to confirm whether the pressing position of the finger and the pressing area of the fingerprint are not. Meet the needs of fingerprint-triggered image capture. If the pressed position is consistent with the structure of the fingerprint, and the pressed area of the fingerprint exceeds the proportion of the projected spot of the fingerprint (for example, more than 50%), the operating system of the terminal device will issue a fingerprint capture notification, and the light spot in the corresponding area of the screen will be bright to a fixed brightness (for example, : 600nit).
  • a fixed brightness for example, : 600nit
  • the fingerprint sensor After the fingerprint sensor receives the image collection notification, according to the set fixed image collection parameters (for example, the exposure time is 50-60ms), the corresponding fingerprint image is obtained after the exposure is completed. open. Then, based on the acquired fingerprint image, subsequent matching identification is performed.
  • the set fixed image collection parameters for example, the exposure time is 50-60ms
  • FIG. 2 is a graph showing the change of the image quality of the optical fingerprint under the screen with the brightness of the screen provided by the related art.
  • the image quality signal amount or signal noise ratio (SNR)
  • SNR signal noise ratio
  • terminal devices on the market generally require that the screen brightness of the fingerprint unlocking process be above 600 nit (the brightness is higher than the display brightness of the normal screen, which is 400 nit).
  • the brightness of the fingerprint unlocking spot of the optical fingerprint under the screen is generally required to be consistent in each usage scenario.
  • the human eye's response to brightness is not linear. For example, in a dim room, people see bright candlelight, but the same candlelight is placed in the noon sunlight, and people can't even see the flames, which means that the human eye
  • the response to changes in brightness diminishes as the brightness increases.
  • under-screen optical fingerprints users will inevitably have the problem of spot light leakage due to incomplete pressing during the process of using under-screen optical fingerprints.
  • users have different degrees of sensitivity to the brightness of the screen in different environmental states, especially in dim scenes (for example: evening and/or movie theaters, etc.), the human eye is more sensitive to light, and the use of off-screen fingerprints in such scenes, The light leakage of the bright spot on the screen will cause the user to feel dazzling, which directly affects the user's unlocking experience in this type of scenario, thereby limiting the wide application of optical fingerprint recognition technology in mobile terminal devices such as mobile phones.
  • an embodiment of the present application provides a method for adjusting screen brightness.
  • the ambient light sensor is used to determine the type of environment in which the terminal device is located, and the fingerprint unlocking parameter configuration and The process is judged to realize automatic adjustment of screen brightness without affecting the unlocking performance, and improve the user's experience of dazzling light leakage during the process of unlocking with the optical fingerprint under the screen.
  • the method for adjusting screen brightness provided by the embodiments of the present application may be applied to terminal devices, where the above-mentioned terminal devices may be smartphones, tablet computers, wearable devices, vehicle-mounted devices, augmented reality (AR)/virtual reality (virtual reality) reality, VR) devices, notebook computers, ultra-mobile personal computers (ultra-mobile personal computers, UMPCs), netbooks, or personal digital assistants (personal digital assistants, PDAs) and other devices; the embodiments of this application do not make any assumptions about the specific types of terminal devices. limit.
  • AR augmented reality
  • VR virtual reality
  • UMPCs ultra-mobile personal computers
  • PDAs personal digital assistants
  • FIG. 3 is a schematic structural diagram of a terminal device provided by an embodiment of the present application, and FIG. 3 is described by taking the terminal device being a smart phone as an example.
  • the terminal device 100 may include a processor 110 , an external memory interface 120 , an internal memory 121 , a universal serial bus (USB) interface 130 , a charging management module 140 , a power management module 141 , and a battery 142 , Antenna 1, Antenna 2, Mobile Communication Module 150, Wireless Communication Module 160, Audio Module 170, Speaker 170A, Receiver 170B, Microphone 170C, Headphone Interface 170D, Sensor Module 180, Key 190, Motor 191, Indicator 192, Camera 193 , a display screen 194, and a subscriber identification module (subscriber identification module, SIM) card interface 195 and the like.
  • SIM subscriber identification module
  • the sensor module 180 may include a pressure sensor 180A, a gyroscope sensor 180B, an air pressure sensor 180C, a magnetic sensor 180D, an acceleration sensor 180E, a distance sensor 180F, a proximity light sensor 180G, a fingerprint sensor 180H, a temperature sensor 180J, a touch sensor 180K, and ambient light. Sensor 180L, bone conduction sensor 180M, etc.
  • the terminal device 100 may include more or less components than those shown in the drawings, or combine some components, or separate some components, or arrange different components.
  • the illustrated components may be implemented in hardware, software, or a combination of software and hardware.
  • the processor 110 may include one or more processing units, for example, the processor 110 may include an application processor (application processor, AP), a modem processor, a graphics processor (graphics processing unit, GPU), an image signal processor (image signal processor, ISP), controller, video codec, digital signal processor (digital signal processor, DSP), baseband processor, and/or neural-network processing unit (neural-network processing unit, NPU), etc. Wherein, different processing units may be independent devices, or may be integrated in one or more processors.
  • application processor application processor, AP
  • modem processor graphics processor
  • ISP image signal processor
  • controller video codec
  • digital signal processor digital signal processor
  • baseband processor baseband processor
  • neural-network processing unit neural-network processing unit
  • the controller can generate an operation control signal according to the instruction operation code and timing signal, and complete the control of fetching and executing instructions.
  • a memory may also be provided in the processor 110 for storing instructions and data.
  • the memory in processor 110 is cache memory. This memory may hold instructions or data that have just been used or recycled by the processor 110 . If the processor 110 needs to use the instruction or data again, it can be called directly from the memory. Repeated accesses are avoided and the latency of the processor 110 is reduced, thereby increasing the efficiency of the system.
  • the processor 110 may include one or more interfaces.
  • the interface may include an integrated circuit (inter-integrated circuit, I2C) interface, an integrated circuit built-in audio (inter-integrated circuit sound, I2S) interface, a pulse code modulation (pulse code modulation, PCM) interface, a universal asynchronous transceiver (universal asynchronous transmitter) receiver/transmitter, UART) interface, mobile industry processor interface (MIPI), general-purpose input/output (GPIO) interface, subscriber identity module (SIM) interface, and / or universal serial bus (universal serial bus, USB) interface, etc.
  • I2C integrated circuit
  • I2S integrated circuit built-in audio
  • PCM pulse code modulation
  • PCM pulse code modulation
  • UART universal asynchronous transceiver
  • MIPI mobile industry processor interface
  • GPIO general-purpose input/output
  • SIM subscriber identity module
  • USB universal serial bus
  • the I2C interface is a bidirectional synchronous serial bus that includes a serial data line (SDA) and a serial clock line (DCL).
  • the processor 110 may contain multiple sets of I2C buses.
  • the processor 110 can be respectively coupled to the touch sensor 180K, the charger, the flash, the camera 193 and the like through different I2C bus interfaces.
  • the processor 110 may couple the touch sensor 180K through the I2C interface, so that the processor 110 and the touch sensor 180K communicate with each other through the I2C bus interface, so as to realize the touch function of the terminal device 100 .
  • the I2S interface can be used for audio communication.
  • the processor 110 may contain multiple sets of I2S buses.
  • the processor 110 may be coupled with the audio module 170 through an I2S bus to implement communication between the processor 110 and the audio module 170 .
  • the audio module 170 can transmit audio signals to the wireless communication module 160 through the I2S interface, so as to realize the function of answering calls through a Bluetooth headset.
  • the PCM interface can also be used for audio communications, sampling, quantizing and encoding analog signals.
  • the audio module 170 and the wireless communication module 160 may be coupled through a PCM bus interface.
  • the audio module 170 can also transmit audio signals to the wireless communication module 160 through the PCM interface, so as to realize the function of answering calls through the Bluetooth headset. Both the I2S interface and the PCM interface can be used for audio communication.
  • the UART interface is a universal serial data bus used for asynchronous communication.
  • the bus may be a bidirectional communication bus. It converts the data to be transmitted between serial communication and parallel communication.
  • a UART interface is typically used to connect the processor 110 with the wireless communication module 160 .
  • the processor 110 communicates with the Bluetooth module in the wireless communication module 160 through the UART interface to implement the Bluetooth function.
  • the audio module 170 can transmit audio signals to the wireless communication module 160 through the UART interface, so as to realize the function of playing music through the Bluetooth headset.
  • the MIPI interface can be used to connect the processor 110 with peripheral devices such as the display screen 194 and the camera 193 .
  • MIPI interfaces include camera serial interface (CSI), display serial interface (DSI), etc.
  • the processor 110 communicates with the camera 193 through the CSI interface, so as to realize the shooting function of the terminal device 100 .
  • the processor 110 communicates with the display screen 194 through the DSI interface to implement the display function of the terminal device 100 .
  • the GPIO interface can be configured by software.
  • the GPIO interface can be configured as a control signal or as a data signal.
  • the GPIO interface may be used to connect the processor 110 with the camera 193, the display screen 194, the wireless communication module 160, the audio module 170, the sensor module 180, and the like.
  • the GPIO interface can also be configured as I2C interface, I2S interface, UART interface, MIPI interface, etc.
  • the USB interface 130 is an interface that conforms to the USB standard specification, and may specifically be a Mini USB interface, a Micro USB interface, a USB Type C interface, and the like.
  • the USB interface 130 can be used to connect a charger to charge the terminal device 100, and can also be used to transmit data between the terminal device 100 and peripheral devices. It can also be used to connect headphones to play audio through the headphones.
  • the interface can also be used to connect other electronic devices, such as AR devices.
  • the interface connection relationship between the modules illustrated in the embodiment of the present invention is only a schematic illustration, and does not constitute a structural limitation of the terminal device 100 .
  • the terminal device 100 may also adopt different interface connection manners in the foregoing embodiments, or a combination of multiple interface connection manners.
  • the charging management module 140 is used to receive charging input from the charger.
  • the charger may be a wireless charger or a wired charger.
  • the charging management module 140 may receive charging input from the wired charger through the USB interface 130.
  • the charging management module 140 may receive wireless charging input through the wireless charging coil of the terminal device 100 . While the charging management module 140 charges the battery 142 , the terminal device 100 can also be powered by the power management module 141 .
  • the power management module 141 is used for connecting the battery 142 , the charging management module 140 and the processor 110 .
  • the power management module 141 receives input from the battery 142 and/or the charging management module 140, and supplies power to the processor 110, the internal memory 121, the display screen 194, the camera 193, and the wireless communication module 160.
  • the power management module 141 can also be used to monitor parameters such as battery capacity, battery cycle times, battery health status (leakage, impedance).
  • the power management module 141 may also be provided in the processor 110 .
  • the power management module 141 and the charging management module 140 may also be provided in the same device.
  • the wireless communication function of the terminal device 100 may be implemented by the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, the modulation and demodulation processor, the baseband processor, and the like.
  • Antenna 1 and Antenna 2 are used to transmit and receive electromagnetic wave signals.
  • Each antenna in terminal device 100 may be used to cover a single or multiple communication frequency bands. Different antennas can also be reused to improve antenna utilization.
  • the antenna 1 can be multiplexed as a diversity antenna of the wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch.
  • the mobile communication module 150 may provide a wireless communication solution including 2G/3G/4G/5G, etc. applied on the terminal device 100 .
  • the mobile communication module 150 may include at least one filter, switch, power amplifier, low noise amplifier (LNA) and the like.
  • the mobile communication module 150 can receive electromagnetic waves from the antenna 1, filter and amplify the received electromagnetic waves, and transmit them to the modulation and demodulation processor for demodulation.
  • the mobile communication module 150 can also amplify the signal modulated by the modulation and demodulation processor, and then turn it into an electromagnetic wave for radiation through the antenna 1 .
  • at least part of the functional modules of the mobile communication module 150 may be provided in the processor 110 .
  • at least part of the functional modules of the mobile communication module 150 may be provided in the same device as at least part of the modules of the processor 110 .
  • the modem processor may include a modulator and a demodulator.
  • the modulator is used to modulate the low frequency baseband signal to be sent into a medium and high frequency signal.
  • the demodulator is used to demodulate the received electromagnetic wave signal into a low frequency baseband signal. Then the demodulator transmits the demodulated low-frequency baseband signal to the baseband processor for processing.
  • the low frequency baseband signal is processed by the baseband processor and passed to the application processor.
  • the application processor outputs sound signals through audio devices (not limited to the speaker 170A, the receiver 170B, etc.), or displays images or videos through the display screen 194 .
  • the modem processor may be a stand-alone device.
  • the modem processor may be independent of the processor 110, and may be provided in the same device as the mobile communication module 150 or other functional modules.
  • the wireless communication module 160 can provide applications on the terminal device 100 including wireless local area networks (WLAN) (such as wireless fidelity (Wi-Fi) networks), bluetooth (BT), global navigation satellites Wireless communication solutions such as global navigation satellite system (GNSS), frequency modulation (FM), near field communication (NFC), and infrared technology (IR).
  • WLAN wireless local area networks
  • BT Bluetooth
  • GNSS global navigation satellite system
  • FM frequency modulation
  • NFC near field communication
  • IR infrared technology
  • the wireless communication module 160 may be one or more devices integrating at least one communication processing module.
  • the wireless communication module 160 receives electromagnetic waves via the antenna 2 , frequency modulates and filters the electromagnetic wave signals, and sends the processed signals to the processor 110 .
  • the wireless communication module 160 can also receive the signal to be sent from the processor 110 , perform frequency modulation on it, amplify it, and convert it into electromagnetic waves for radiation through the antenna 2 .
  • the antenna 1 of the terminal device 100 is coupled with the mobile communication module 150, and the antenna 2 is coupled with the wireless communication module 160, so that the terminal device 100 can communicate with the network and other devices through wireless communication technology.
  • the wireless communication technology may include global system for mobile communications (GSM), general packet radio service (GPRS), code division multiple access (CDMA), broadband Code Division Multiple Access (WCDMA), Time Division Code Division Multiple Access (TD-SCDMA), Long Term Evolution (LTE), BT, GNSS, WLAN, NFC , FM, and/or IR technology, etc.
  • the GNSS may include global positioning system (global positioning system, GPS), global navigation satellite system (global navigation satellite system, GLONASS), Beidou navigation satellite system (beidou navigation satellite system, BDS), quasi-zenith satellite system (quasi -zenith satellite system, QZSS) and/or satellite based augmentation systems (SBAS).
  • global positioning system global positioning system, GPS
  • global navigation satellite system global navigation satellite system, GLONASS
  • Beidou navigation satellite system beidou navigation satellite system, BDS
  • quasi-zenith satellite system quadsi -zenith satellite system, QZSS
  • SBAS satellite based augmentation systems
  • the terminal device 100 implements a display function through a GPU, a display screen 194, an application processor, and the like.
  • the GPU is a microprocessor for image processing, and is connected to the display screen 194 and the application processor.
  • the GPU is used to perform mathematical and geometric calculations for graphics rendering.
  • Processor 110 may include one or more GPUs that execute program instructions to generate or alter display information.
  • Display screen 194 is used to display images, videos, and the like.
  • Display screen 194 includes a display panel.
  • the display panel can be a liquid crystal display (LCD), an organic light-emitting diode (OLED), an active-matrix organic light-emitting diode or an active-matrix organic light-emitting diode (active-matrix organic light).
  • LED diode AMOLED
  • flexible light-emitting diode flexible light-emitting diode (flex light-emitting diode, FLED), Miniled, MicroLed, Micro-oLed, quantum dot light-emitting diode (quantum dot light emitting diodes, QLED) and so on.
  • the terminal device 100 may include one or N display screens 194 , where N is a positive integer greater than one.
  • the terminal device 100 can realize the shooting function through the ISP, the camera 193, the video codec, the GPU, the display screen 194 and the application processor.
  • the ISP is used to process the data fed back by the camera 193 .
  • the shutter is opened, the light is transmitted to the camera photosensitive element through the lens, the light signal is converted into an electrical signal, and the camera photosensitive element transmits the electrical signal to the ISP for processing, and converts it into an image visible to the naked eye.
  • ISP can also perform algorithm optimization on image noise, brightness, and skin tone.
  • ISP can also optimize the exposure, color temperature and other parameters of the shooting scene.
  • the ISP may be provided in the camera 193 .
  • Camera 193 is used to capture still images or video.
  • the object is projected through the lens to generate an optical image onto the photosensitive element.
  • the photosensitive element may be a charge coupled device (CCD) or a complementary metal-oxide-semiconductor (CMOS) phototransistor.
  • CMOS complementary metal-oxide-semiconductor
  • the photosensitive element converts the optical signal into an electrical signal, and then transmits the electrical signal to the ISP to convert it into a digital image signal.
  • the ISP outputs the digital image signal to the DSP for processing.
  • DSP converts digital image signals into standard RGB, YUV and other formats of image signals.
  • the terminal device 100 may include 1 or N cameras 193 , where N is a positive integer greater than 1.
  • a digital signal processor is used to process digital signals, in addition to processing digital image signals, it can also process other digital signals. For example, when the terminal device 100 selects a frequency point, the digital signal processor is used to perform Fourier transform on the frequency point energy and the like.
  • Video codecs are used to compress or decompress digital video.
  • the terminal device 100 may support one or more video codecs.
  • the terminal device 100 can play or record videos in various encoding formats, for example, moving picture experts group (moving picture experts group, MPEG) 1, MPEG2, MPEG3, MPEG4 and so on.
  • MPEG moving picture experts group
  • the NPU is a neural-network (NN) computing processor.
  • NN neural-network
  • Applications such as intelligent cognition of the terminal device 100 can be implemented through the NPU, such as image recognition, face recognition, speech recognition, text understanding, and the like.
  • the external memory interface 120 can be used to connect an external memory card, such as a Micro SD card, to expand the storage capacity of the terminal device 100 .
  • the external memory card communicates with the processor 110 through the external memory interface 120 to realize the data storage function. For example to save files like music, video etc in external memory card.
  • Internal memory 121 may be used to store computer executable program code, which includes instructions.
  • the internal memory 121 may include a storage program area and a storage data area.
  • the storage program area can store an operating system, an application program required for at least one function (such as a sound playback function, an image playback function, etc.), and the like.
  • the storage data area may store data (such as audio data, phone book, etc.) created during the use of the terminal device 100 and the like.
  • the internal memory 121 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, universal flash storage (UFS), and the like.
  • the processor 110 executes various functional applications and data processing of the terminal device 100 by executing instructions stored in the internal memory 121 and/or instructions stored in a memory provided in the processor.
  • the terminal device 100 may implement audio functions through an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D, an application processor, and the like. Such as music playback, recording, etc.
  • the audio module 170 is used for converting digital audio information into analog audio signal output, and also for converting analog audio input into digital audio signal. Audio module 170 may also be used to encode and decode audio signals. In some embodiments, the audio module 170 may be provided in the processor 110 , or some functional modules of the audio module 170 may be provided in the processor 110 .
  • Speaker 170A also referred to as a "speaker" is used to convert audio electrical signals into sound signals.
  • the terminal device 100 can listen to music through the speaker 170A, or listen to a hands-free call.
  • the receiver 170B also referred to as "earpiece" is used to convert audio electrical signals into sound signals.
  • the terminal device 100 answers a call or a voice message, the voice can be answered by placing the receiver 170B close to the human ear.
  • the microphone 170C also called “microphone” or “microphone” is used to convert sound signals into electrical signals.
  • the user can make a sound by approaching the microphone 170C through a human mouth, and input the sound signal into the microphone 170C.
  • the terminal device 100 may be provided with at least one microphone 170C.
  • the terminal device 100 may be provided with two microphones 170C, which may implement a noise reduction function in addition to collecting sound signals.
  • the terminal device 100 may further be provided with three, four or more microphones 170C to collect sound signals, reduce noise, identify sound sources, and implement directional recording functions.
  • the earphone jack 170D is used to connect wired earphones.
  • the earphone interface 170D may be the USB interface 130, or may be a 3.5mm open mobile terminal platform (OMTP) standard interface, a cellular telecommunications industry association of the USA (CTIA) standard interface.
  • OMTP open mobile terminal platform
  • CTIA cellular telecommunications industry association of the USA
  • the pressure sensor 180A is used to sense pressure signals, and can convert the pressure signals into electrical signals.
  • the pressure sensor 180A may be provided on the display screen 194 .
  • the capacitive pressure sensor may be comprised of at least two parallel plates of conductive material. When a force is applied to the pressure sensor 180A, the capacitance between the electrodes changes.
  • the terminal device 100 determines the intensity of the pressure according to the change in capacitance. When a touch operation acts on the display screen 194, the terminal device 100 detects the intensity of the touch operation according to the pressure sensor 180A.
  • the terminal device 100 may also calculate the touched position according to the detection signal of the pressure sensor 180A.
  • touch operations acting on the same touch position but with different touch operation intensities may correspond to different operation instructions. For example, when a touch operation whose intensity is less than the first pressure threshold acts on the short message application icon, the instruction for viewing the short message is executed. When a touch operation with a touch operation intensity greater than or equal to the first pressure threshold acts on the short message application icon, the instruction to create a new short message is executed.
  • the gyro sensor 180B may be used to determine the motion attitude of the terminal device 100 .
  • the angular velocity of the end device 100 about three axes ie, the x, y and z axes
  • the gyro sensor 180B can be used for image stabilization.
  • the gyro sensor 180B detects the shaking angle of the terminal device 100, calculates the distance to be compensated by the lens module according to the angle, and allows the lens to offset the shaking of the terminal device 100 through reverse motion to achieve anti-shake.
  • the gyro sensor 180B can also be used for navigation and somatosensory game scenarios.
  • the air pressure sensor 180C is used to measure air pressure.
  • the terminal device 100 calculates the altitude through the air pressure value measured by the air pressure sensor 180C to assist in positioning and navigation.
  • the magnetic sensor 180D includes a Hall sensor.
  • the terminal device 100 can detect the opening and closing of the flip holster using the magnetic sensor 180D.
  • the terminal device 100 can detect the opening and closing of the flip according to the magnetic sensor 180D. Further, according to the detected opening and closing state of the leather case or the opening and closing state of the flip cover, characteristics such as automatic unlocking of the flip cover are set.
  • the acceleration sensor 180E can detect the magnitude of the acceleration of the terminal device 100 in various directions (generally three axes).
  • the magnitude and direction of gravity can be detected when the terminal device 100 is stationary. It can also be used to identify the posture of electronic devices, and can be used in applications such as horizontal and vertical screen switching, pedometers, etc.
  • the terminal device 100 can measure the distance through infrared or laser. In some embodiments, when shooting a scene, the terminal device 100 can use the distance sensor 180F to measure the distance to achieve fast focusing.
  • Proximity light sensor 180G may include, for example, light emitting diodes (LEDs) and light detectors, such as photodiodes.
  • the light emitting diodes may be infrared light emitting diodes.
  • the terminal device 100 emits infrared light to the outside through the light emitting diode.
  • the terminal device 100 detects infrared reflected light from nearby objects using a photodiode. When sufficient reflected light is detected, it can be determined that there is an object near the terminal device 100 . When insufficient reflected light is detected, the terminal device 100 may determine that there is no object near the terminal device 100 .
  • the terminal device 100 can use the proximity light sensor 180G to detect that the user holds the terminal device 100 close to the ear to talk, so as to automatically turn off the screen to save power.
  • Proximity light sensor 180G can also be used in holster mode, pocket mode automatically unlocks and locks the screen.
  • the ambient light sensor 180L is used to sense ambient light brightness.
  • the terminal device 100 can adaptively adjust the brightness of the display screen 194 according to the perceived ambient light brightness.
  • the ambient light sensor 180L can also be used to automatically adjust the white balance when taking pictures.
  • the ambient light sensor 180L can also cooperate with the proximity light sensor 180G to detect whether the terminal device 100 is in a pocket, so as to prevent accidental touch.
  • the fingerprint image sensor 180H is used to collect fingerprints.
  • the terminal device 100 can use the collected fingerprint characteristics to realize fingerprint unlocking, accessing application locks, taking photos with fingerprints, answering incoming calls with fingerprints, and the like.
  • the temperature sensor 180J is used to detect the temperature.
  • the terminal device 100 uses the temperature detected by the temperature sensor 180J to execute the temperature processing strategy. For example, when the temperature reported by the temperature sensor 180J exceeds a threshold value, the terminal device 100 reduces the performance of the processor located near the temperature sensor 180J, so as to reduce power consumption and implement thermal protection.
  • the terminal device 100 when the temperature is lower than another threshold, the terminal device 100 heats the battery 142 to avoid abnormal shutdown of the terminal device 100 caused by the low temperature.
  • the terminal device 100 boosts the output voltage of the battery 142 to avoid abnormal shutdown caused by low temperature.
  • Touch sensor 180K also called “touch device”.
  • the touch sensor 180K may be disposed on the display screen 194 , and the touch sensor 180K and the display screen 194 form a touch screen, also called a “touch screen”.
  • the touch sensor 180K is used to detect a touch operation on or near it.
  • the touch sensor can pass the detected touch operation to the application processor to determine the type of touch event.
  • Visual output related to touch operations may be provided through display screen 194 .
  • the touch sensor 180K may also be disposed on the surface of the terminal device 100 , which is different from the position where the display screen 194 is located.
  • the bone conduction sensor 180M can acquire vibration signals.
  • the bone conduction sensor 180M can acquire the vibration signal of the vibrating bone mass of the human voice.
  • the bone conduction sensor 180M can also contact the pulse of the human body and receive the blood pressure beating signal.
  • the bone conduction sensor 180M can also be disposed in the earphone, combined with the bone conduction earphone.
  • the audio module 170 can analyze the voice signal based on the vibration signal of the vocal vibration bone block obtained by the bone conduction sensor 180M, so as to realize the voice function.
  • the application processor can analyze the heart rate information based on the blood pressure beat signal obtained by the bone conduction sensor 180M, and realize the function of heart rate detection.
  • the keys 190 include a power-on key, a volume key, and the like. Keys 190 may be mechanical keys. It can also be a touch key.
  • the terminal device 100 may receive key input and generate key signal input related to user settings and function control of the terminal device 100 .
  • Motor 191 can generate vibrating cues.
  • the motor 191 can be used for vibrating alerts for incoming calls, and can also be used for touch vibration feedback.
  • touch operations acting on different applications can correspond to different vibration feedback effects.
  • the motor 191 can also correspond to different vibration feedback effects for touch operations on different areas of the display screen 194 .
  • Different application scenarios for example: time reminder, receiving information, alarm clock, games, etc.
  • the touch vibration feedback effect can also support customization.
  • the indicator 192 can be an indicator light, which can be used to indicate the charging state, the change of the power, and can also be used to indicate a message, a missed call, a notification, and the like.
  • the SIM card interface 195 is used to connect a SIM card.
  • the SIM card can be contacted and separated from the terminal device 100 by inserting into the SIM card interface 195 or pulling out from the SIM card interface 195 .
  • the terminal device 100 may support 1 or N SIM card interfaces, where N is a positive integer greater than 1.
  • the SIM card interface 195 can support Nano SIM card, Micro SIM card, SIM card and so on. Multiple cards can be inserted into the same SIM card interface 195 at the same time. The types of the plurality of cards may be the same or different.
  • the SIM card interface 195 can also be compatible with different types of SIM cards.
  • the SIM card interface 195 is also compatible with external memory cards.
  • the terminal device 100 interacts with the network through the SIM card to implement functions such as call and data communication.
  • the terminal device 100 adopts an eSIM, that is, an embedded SIM card.
  • the eSIM card can be embedded in the terminal device 100 and cannot be separated from the terminal device 100 .
  • FIG. 4 is a schematic diagram of under-screen optical fingerprint imaging according to an embodiment of the present application.
  • 41 is a human finger
  • 42 is an OLED display screen
  • the OLED display screen may be the display screen 194 of the terminal device 100 shown in FIG. 3 .
  • the ambient light sensor 47 in the terminal device is used to obtain the light intensity information of the current environment where the terminal device is located; the processor 48 determines, according to the light intensity information obtained by the ambient light sensor 47, whether the working environment of the fingerprint image sensor 43 is Dim, regular or bright light. According to the working environment in which the fingerprint image sensor 43 is located, the processor 48 selects different hardware and software parameter configurations (for example, different fingerprint light spot brightness, matching different exposure times or different sensitivity photosensitive units), so as to realize the operation under different ambient light conditions. Optimize the brightness of the fingerprint light spot under low light conditions (such as dim, normal or strong light), and improve the problem of light leakage and glare caused by incomplete pressing of the light spot during use.
  • different hardware and software parameter configurations for example, different fingerprint light spot brightness, matching different exposure times or different sensitivity photosensitive units
  • FIG. 5 is a schematic diagram of the relationship between image quality of an under-screen optical fingerprint, exposure time, and screen brightness according to an embodiment of the present application. It can be seen from Figure 5 that during the optical fingerprint imaging under the screen, under the premise of avoiding the overexposure of the fingerprint image sensor, extending the exposure time t of the fingerprint spot or increasing the brightness L of the fingerprint spot can improve the quality of the fingerprint image. Therefore, in order to obtain a stable and clear fingerprint image, when the screen brightness is reduced, the exposure time can be appropriately extended to ensure that the amount of signals obtained by the fingerprint image sensor remains unchanged and the quality of the fingerprint image is guaranteed.
  • FIG. 6 is a flowchart of a method for adjusting screen brightness provided by an embodiment of the present application. As shown in FIG. 6 , the above-mentioned method for adjusting screen brightness may include:
  • Step 601 after the terminal device 100 detects the pressing operation of the user's finger on the display screen 194 of the terminal device 100 , it determines whether the pressing operation of the finger and the pressing area of the fingerprint meet the triggering conditions for fingerprint capture.
  • the terminal device 100 can detect the pressing operation of the user's finger on the display screen 194 through the processor 110 and the pressure sensor 180A and/or the touch sensor 180K, and then determine whether the above-mentioned pressing operation of the finger and the pressing area of the fingerprint satisfy the fingerprint acquisition requirements. trigger condition.
  • Step 602 if satisfied, acquire the brightness of the environment where the terminal device 100 is currently located.
  • the above-mentioned pressing operation of the finger and the pressing area of the fingerprint meeting the triggering conditions for fingerprint capture may include: the pressing position of the finger matches the position of the fingerprint spot, and the ratio of the area of the pressing area of the fingerprint to the area of the fingerprint spot greater than or equal to a predetermined threshold.
  • the above-mentioned predetermined threshold may be set by itself during specific implementation according to system performance and/or implementation requirements, and this embodiment does not limit the size of the above-mentioned predetermined threshold.
  • the above-mentioned predetermined threshold may be 50%.
  • the processor 110 in the terminal device 100 may acquire the brightness of the environment where the terminal device 100 is currently located from the ambient light sensor 180L.
  • Step 603 in response to determining that the brightness of the environment where the terminal device 100 is currently located is the first brightness, determining that the brightness of the fingerprint spot is the first spot brightness, and determining that the exposure duration of the fingerprint spot is the first duration; in response to determining that the terminal device 100
  • the brightness of the current environment is the second brightness
  • the brightness of the fingerprint light spot is determined as the second light spot brightness
  • the exposure duration of the fingerprint light spot is determined as the second duration.
  • the brightness of the first light spot is different from the brightness of the second light spot, and the first duration is different from the second duration.
  • the first spot brightness is less than or equal to the second spot brightness
  • the first duration is greater than or equal to the second duration
  • the specific parameters of the brightness of the fingerprint light spot and the exposure time of the fingerprint light spot can be configured according to the above conditions and needs, but the exposure time should not be too long, because the exposure time is too long, it will affect the unlocking time, and then affect the user's smooth experience.
  • the value range of the exposure duration is 10-200ms
  • the value range of the brightness of the fingerprint spot is 100-1500nit.
  • the brightness of the environment where the terminal device 100 is currently located is divided into the following four levels:
  • B3 is normal: illuminance 100 ⁇ L ⁇ 10000lux;
  • the brightness of the fingerprint spot can be determined to be L1, and the corresponding exposure time is t1.
  • the value range of L1 can be 200 ⁇ 400nit, and the value range of exposure duration t1 can be 100 ⁇ 200ms;
  • the brightness of the fingerprint spot can be determined to be L2, and the corresponding exposure time is t2, where the value range of L2 can be 400-600nit, and the value range of the exposure duration t2 can be 50-100ms;
  • the brightness level of the environment is B3, for example, the ambient illuminance is 100 ⁇ L ⁇ 10000lux
  • the current environment brightness of the terminal device 100 is normal brightness, so it can be determined that the brightness of the fingerprint spot is the normal set value L3, and the corresponding The exposure duration is the normal set value t3, where the value range of L3 can be 600-1000nit, and the exposure duration t2 can be 20-80ms;
  • the brightness level of the environment is B4, for example, the environmental illumination is L>10000lux
  • the current environment where the terminal device 100 is located is an environment with strong light interference.
  • the brightness of the fingerprint spot can be determined to be L4.
  • the corresponding exposure duration is the normal set value t4, wherein the value range of L4 may be more than 600nit, and the value range of the exposure duration t2 may be 5-50ms.
  • Step 604 after the exposure time period ends, obtain the fingerprint image of the user's finger collected by the fingerprint image sensor 180H.
  • the processor 110 in the terminal device 100 can send the fingerprint image to the fingerprint image.
  • the sensor 180H sends an image capture notification to instruct the fingerprint image sensor 180H to capture the fingerprint image of the user's finger.
  • the fingerprint image sensor 180H may collect one or more fingerprint images as required, which is not limited in this embodiment.
  • Step 605 perform matching and identification on the above fingerprint image.
  • the terminal device 100 obtains the brightness of the current environment where the terminal device 100 is located through the ambient light sensor 180L, and determines the brightness of the fingerprint spot and the exposure duration of the fingerprint spot according to the brightness.
  • the current spot of under-screen optical fingerprints in dark environments is effectively improved. dazzling question.
  • FIG. 7 is a schematic diagram of the pixel distribution of the conventional fingerprint image sensor.
  • the embodiments of the present application may also design photosensitive units with different sensitivities in the hardware design of the 180H pixel of the fingerprint image sensor. Specifically, the amount of light signal obtained by different pixels within the same exposure time can be adjusted by adjusting the effective photosensitive area of different pixels, and the responsivity of the device can be determined by different semiconductor materials (for example: silicon-based or oxide semiconductor, etc.) Or doping process, etc. to achieve.
  • semiconductor materials for example: silicon-based or oxide semiconductor, etc.
  • FIG. 8 is a schematic diagram of splicing pixels with different sensitivities provided by an embodiment of the present application. As shown in FIG. 8 , the splicing designs A, B, and C of pixels with different sensitivities are shown in FIG. 8 .
  • pixel A can be normal sensitivity (pixel size 50-100um), and the anti-saturation ability is normal (for example: photoelectric conversion saturation electron number 5-10W);
  • pixel B can be medium sensitivity (pixel size 20-50um), anti-saturation ability General (for example: photoelectric conversion saturation electron number 2-5W);
  • pixel C can be high sensitivity (pixel size 1-20um), slightly poor anti-saturation ability (for example: photoelectric conversion saturation electron number 0.5-2W); can be selected according to needs 2 or more photosensitive units with different photosensitive sensitivities.
  • the use of high-sensitivity pixel types can obtain the same image quality with the same exposure time when the screen brightness is reduced.
  • the selection of pixel units with high anti-saturation ability can ensure that the fingerprint image is not exposed in the state of external strong light interference. .
  • FIG. 9 is a flowchart of a method for adjusting screen brightness provided by another embodiment of the present application.
  • hardware pixel units with different sensitivities can be selected according to the environment where the terminal device 100 is located to achieve the purpose of adjusting the brightness of the fingerprint spot. Either The quality of the fingerprint image is guaranteed without significantly affecting the unlocking time.
  • the flow chart of the above-mentioned method for adjusting screen brightness may include:
  • Step 901 after the terminal device 100 detects the pressing operation of the user's finger on the display screen 194 of the terminal device 100 , it determines whether the pressing operation of the finger and the pressing area of the fingerprint meet the triggering conditions for fingerprint capture.
  • the terminal device 100 can detect the pressing operation of the user's finger on the display screen 194 through the processor 110 and the pressure sensor 180A and/or the touch sensor 180K, and then determine whether the above-mentioned pressing operation of the finger and the pressing area of the fingerprint satisfy the fingerprint acquisition requirements. trigger condition.
  • Step 902 if satisfied, obtain the brightness of the environment where the terminal device 100 is currently located.
  • the above-mentioned pressing operation of the finger and the pressing area of the fingerprint meeting the triggering conditions for fingerprint capture may include: the pressing position of the finger matches the position of the fingerprint spot, and the ratio of the area of the pressing area of the fingerprint to the area of the fingerprint spot greater than or equal to a predetermined threshold.
  • the above-mentioned predetermined threshold may be set by itself during specific implementation according to system performance and/or implementation requirements, and this embodiment does not limit the size of the above-mentioned predetermined threshold.
  • the above-mentioned predetermined threshold may be 50%.
  • the processor 110 in the terminal device 100 obtains the fingerprint capture notification, it can obtain the brightness of the environment where the terminal device 100 is currently located from the ambient light sensor 180L.
  • Step 903 Determine the brightness of the fingerprint light spot according to the brightness of the current environment of the terminal device 100; Effective light-receiving area and exposure time.
  • the brightness of the fingerprint spot is determined according to the brightness of the environment where the terminal device 100 is currently located; and the image sensing unit array corresponding to the above-mentioned brightness is selected to determine the photoelectric conversion efficiency of the hardware unit corresponding to the above-mentioned image sensing unit array, the pixel's
  • the effective light-receiving area and exposure time can be:
  • the photoelectric conversion efficiency of the hardware unit corresponding to the first image sensing unit array, the effective light-receiving area of the pixel, and the exposure duration are the first photoelectric conversion efficiency, the first effective light-receiving area, and the first duration, respectively;
  • determining that the brightness of the environment where the terminal device 100 is currently located is the second brightness
  • determining that the brightness of the fingerprint spot is the second spot brightness
  • determining that the image sensing unit array corresponding to the second brightness is the second image sensing unit array
  • the first light spot brightness is different from the second light spot brightness
  • the first photoelectric conversion efficiency is different from the second photoelectric conversion efficiency
  • the first effective light receiving area is different from the second effective light receiving area
  • the first duration is different from the second duration
  • the first duration is greater than or equal to the second duration.
  • the value range of the brightness L of the fingerprint light spot is generally 100-1500nit; the value range of the exposure time is generally 10-200ms.
  • the brightness of the environment where the terminal device 100 is currently located can be divided into the following four levels:
  • B3 is normal: illuminance 100 ⁇ L ⁇ 10000lux;
  • the brightness level of the environment is B1
  • the ambient illuminance is L ⁇ 10lux
  • the brightness of the fingerprint spot can be determined to be L1
  • a high-sensitivity image sensor is selected.
  • the unit array is used for image capturing, the photoelectric conversion efficiency of the hardware unit corresponding to the image sensing unit array is Q1, the effective light-receiving area of the pixel is A1, and the corresponding exposure time is t1;
  • the brightness level of the environment is B2
  • the ambient illumination is 10 ⁇ L ⁇ 100lux
  • the brightness of the fingerprint spot can be determined as L2, and the image with medium and high sensitivity is selected.
  • the sensing unit array is used for image acquisition.
  • the photoelectric conversion efficiency of the hardware unit corresponding to the image sensing unit array is Q2, the effective light-receiving area of the pixel is A2, and the corresponding exposure time is t2;
  • the brightness level of the environment is B3, for example, the ambient illuminance is 100 ⁇ L ⁇ 10000lux, and the current environment brightness of the terminal device 100 is normal brightness, it can be determined that the brightness of the fingerprint spot is L3, and an image sensor with normal sensitivity is selected.
  • the unit array is used for image capturing, the photoelectric conversion efficiency of the hardware unit corresponding to the image sensing unit array is Q3, the effective light-receiving area of the pixel is A3, and the corresponding exposure time is t3;
  • the brightness level of the environment is B4, for example, the environmental illumination is L>10000lux
  • the current environment where the terminal device 100 is located is an environment with strong light interference.
  • the brightness of the fingerprint spot can be determined to be L4.
  • the image sensing unit array with normal sensitivity is used for image acquisition.
  • the photoelectric conversion efficiency of the hardware unit corresponding to the image sensing unit array is Q4, the effective light-receiving area of the pixel is A4, and the corresponding exposure time is t4.
  • the value of the brightness of the fingerprint spot is L1 ⁇ L2 ⁇ L3 ⁇ L4, the value of the corresponding exposure time is t4 ⁇ t3 ⁇ t2 ⁇ t1, and the value of the photoelectric conversion efficiency is Q4.
  • ⁇ Q3 ⁇ Q2 ⁇ Q1 the value of the effective light-receiving area A4 ⁇ A3 ⁇ A2 ⁇ A1.
  • Step 904 after the exposure period ends, obtain a fingerprint image of the user's finger collected by the fingerprint image sensor 180H; wherein the fingerprint image is collected by the fingerprint image sensor 180H through an image sensing unit array corresponding to the brightness.
  • a picture sampling notification is sent to the fingerprint image sensor to indicate the fingerprint image sensor.
  • the fingerprint image of the above-mentioned user's finger is collected.
  • the fingerprint image sensor 180H may collect one or more fingerprint images as required, which is not limited in this embodiment.
  • Step 905 perform matching and identification on the above fingerprint image.
  • the terminal device 100 obtains the brightness of the environment where the terminal device 100 is currently located through the ambient light sensor 180L, determines the brightness of the fingerprint spot according to the brightness; and selects an image sensing unit corresponding to the above brightness Array, and determine the photoelectric conversion efficiency of the hardware unit corresponding to the image sensing unit array, the effective light-receiving area of the pixel, and the exposure time.
  • the fingerprint image sensor 180H selects image sensing unit arrays with different sensitivities to collect fingerprint images, effectively improving the current situation. The problem that the optical fingerprints under the screen are dazzling in the dark environment.
  • the terminal device includes corresponding hardware and/or software modules for executing each function.
  • the algorithm steps of each example described in conjunction with the embodiments disclosed in this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functionality for each particular application in conjunction with the embodiments, but such implementations should not be considered beyond the scope of this application.
  • the terminal device may be divided into functional modules according to the foregoing method embodiments.
  • each functional module may be divided corresponding to each function, or two or more functions may be integrated into one module.
  • the above-mentioned integrated modules can be implemented in the form of hardware. It should be noted that the division of modules in this embodiment is schematic, and is only a logical function division, and other division methods may be used in actual implementation.
  • FIG. 10 is a schematic structural diagram of a terminal device according to another embodiment of the present application.
  • FIG. 10 shows a possible composition of the terminal device 1000 involved in the above embodiment.
  • the terminal device 1000 may include: a receiving unit 1001, a processing unit 1002 and a sending unit 1003;
  • the receiving unit 1001 may be configured to support the terminal device 1000 to perform other processes of the technical solutions described in the embodiments of this application;
  • the processing unit 1002 may be configured to support the terminal device 1000 to perform steps 601 to 605, and steps 901 to 905, etc., and/or other processes for the technical solutions described in the embodiments of this application;
  • the sending unit 1003 may be configured to support the terminal device 1000 to perform other processes of the technical solutions described in the embodiments of this application.
  • the terminal device 1000 provided in this embodiment is used to execute the above method for adjusting the screen brightness, so the same effect as the above method can be achieved.
  • the terminal device 1000 may correspond to the terminal device 100 shown in FIG. 1 .
  • the functions of the receiving unit 1001 and the sending unit 1003 may be determined by the processor 110 , the antenna 1 and the mobile communication module 100 in the terminal device 100 shown in FIG. 1 , and/or by the processor 110 , the antenna 2 and the wireless communication module 160 Implementation; the functions of the processing unit 1002 may be implemented by the processor 110 , the ambient light sensor 180L, the fingerprint image sensor 180H, the pressure sensor 180A and the touch sensor 180K in the terminal device 100 shown in FIG. 1 .
  • the terminal device 1000 may include a processing module, a storage module, and a communication module.
  • the processing module may be used to control and manage the actions of the terminal device 1000, for example, may be used to support the terminal device 1000 to perform the steps performed by the receiving unit 1001, the processing unit 1002 and the sending unit 1003.
  • the storage module may be used to support the terminal device 1000 to store program codes, data, and the like.
  • the communication module can be used to support the communication between the terminal device 1000 and other devices.
  • a processing module may be a processor or controller, which may implement or execute the various exemplary logical blocks, modules, and circuits described in connection with the present disclosure.
  • the processor may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of digital signal processing (DSP) and a microprocessor, and the like.
  • the storage module may be a memory.
  • the communication module may specifically be a device that interacts with other electronic devices, such as a radio frequency circuit, a Bluetooth chip, and/or a Wi-Fi chip.
  • the terminal device 1000 involved in this embodiment may be a device having the structure shown in FIG. 3 .
  • Embodiments of the present application further provide a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when it runs on a computer, the computer causes the computer to execute the programs provided by the embodiments shown in FIGS. 5 to 9 of the present application. method.
  • An embodiment of the present application further provides a computer program product, the computer program product includes a computer program, which, when run on a computer, enables the computer to execute the methods provided by the embodiments shown in FIGS. 5 to 9 of the present application.
  • “at least one” refers to one or more, and “multiple” refers to two or more.
  • “And/or”, which describes the association relationship of the associated objects means that there can be three kinds of relationships, for example, A and/or B, which can indicate the existence of A alone, the existence of A and B at the same time, and the existence of B alone. where A and B can be singular or plural.
  • the character “/” generally indicates that the associated objects are an “or” relationship.
  • “At least one of the following” and similar expressions refer to any combination of these items, including any combination of single or plural items.
  • At least one of a, b, and c may represent: a, b, c, a and b, a and c, b and c or a and b and c, where a, b, c may be single, or Can be multiple.
  • any function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium.
  • the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk and other media that can store program codes .

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Abstract

The embodiments of the present application provide a screen brightness adjustment method, an apparatus, and a terminal device. In the screen brightness adjustment method, after a terminal device detects a pressing operation of a user's finger on a display screen of the terminal device, whether the pressing operation of the finger and the pressing area of the fingerprint satisfy a fingerprint image acquisition triggering condition is determined; if so, a fingerprint image acquisition notification is acquired, and the brightness of the environment where the terminal device is currently located is acquired; then, insofar as the unlocking performance of an under-screen optical fingerprint is not affected, the brightness of a fingerprint light spot and the exposure duration of the fingerprint light spot are determined according to the brightness of the environment where the terminal device is currently located, or an image sensing unit array with different sensitivities is selected to acquire a fingerprint image, thereby effectively solving the problem of glare from the light spot of an under-screen optical fingerprint in a dim environment; and after the exposure duration ends, the fingerprint image of the user's finger acquired by a fingerprint image sensor is obtained, and matching and recognition are performed on the fingerprint image.

Description

屏幕亮度的调整方法、装置和终端设备Method, device and terminal device for adjusting screen brightness
本申请要求于2021年1月20日提交中国专利局、申请号为202110072686.5、发明名称为“屏幕亮度的调整方法、装置和终端设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。This application claims the priority of the Chinese patent application filed on January 20, 2021 with the application number 202110072686.5 of the Chinese Patent Office, and the invention is entitled "Method, Apparatus and Terminal Equipment for Adjusting Screen Brightness", the entire contents of which are incorporated by reference in in this application.
技术领域technical field
本申请实施例涉及智能终端技术领域，特别涉及一种屏幕亮度的调整方法、装置和终端设备。The embodiments of the present application relate to the technical field of intelligent terminals, and in particular, to a method, an apparatus, and a terminal device for adjusting screen brightness.
背景技术Background technique
为响应市场需求，终端设备(例如：手机或平板电脑等)中的显示屏逐渐向全面屏发展，追求越来越高的屏占比，使得屏下光学指纹方案应运而生。屏下光学指纹方案中，带指纹信息的光能够穿透屏幕到达光学指纹传感器(sensor)表面成像，再结合软件算法即能够实现指纹识别功能。In response to market demand, displays in terminal devices (such as mobile phones or tablet computers) are gradually developing towards full-screen displays, pursuing higher and higher screen-to-body ratios, resulting in the emergence of under-screen optical fingerprint solutions. In the under-screen optical fingerprint solution, the light with fingerprint information can penetrate the screen to reach the surface of the optical fingerprint sensor (sensor) for imaging, and combined with software algorithms, the fingerprint recognition function can be realized.
现有相关技术中，在终端设备的显示屏检测到用户手指的按压动作后，通过屏幕的触控功能确认手指的按压位置以及指纹的按压区域是否满足指纹触发采图的需求。如果按压位置与指纹的结构位置一致，同时指纹按压区域超过指纹投影光斑的比例(例如50％以上)，终端设备的操作***发出指纹采图通知，屏幕对应区域的光斑点亮到固定亮度(例如：600nit)。指纹传感器接收到采图通知之后，按照设定的固定采图参数(例如：曝光时间为50-60ms)，曝光完成后获得对应的指纹图像，具体的采图次数可以根据需求采集一张或者多张。然后，基于获取的指纹图像，进行后续的匹配识别。In the related art, after the display screen of the terminal device detects the pressing action of the user's finger, the touch function of the screen is used to confirm whether the pressing position of the finger and the pressing area of the fingerprint meet the requirements of fingerprint-triggered image capture. If the pressed position is consistent with the structure of the fingerprint, and the pressed area of the fingerprint exceeds the proportion of the projected spot of the fingerprint (for example, more than 50%), the operating system of the terminal device will issue a fingerprint capture notification, and the light spot in the corresponding area of the screen will be bright to a fixed brightness (for example, : 600nit). After the fingerprint sensor receives the image collection notification, according to the set fixed image collection parameters (for example, the exposure time is 50-60ms), the corresponding fingerprint image is obtained after the exposure is completed. open. Then, based on the acquired fingerprint image, subsequent matching identification is performed.
但是，用户在使用屏下指纹过程中，会存在因按压不全导致光斑漏光的问题。而用户在不同环境状态下对于屏幕的亮度敏感程度不同，特别是在昏暗场景(例如：傍晚和/或电影院中等)下人眼对光线的敏感度更大，该类场景下使用屏下指纹，屏幕高亮光斑的漏光会导致用户出现刺眼的感受，直接影响该类场景下用户的解锁体验，进而限制了光学指纹识别技术在手机等移动终端设备中的广泛应用。However, when the user uses the fingerprint under the screen, there will be a problem of light leakage from the spot due to incomplete pressing. However, users have different degrees of sensitivity to the brightness of the screen in different environmental states, especially in dim scenes (for example: evening and/or movie theaters, etc.), the human eye is more sensitive to light, and the use of off-screen fingerprints in such scenes, The light leakage of the bright spot on the screen will cause the user to feel dazzling, which directly affects the user's unlocking experience in this type of scenario, thereby limiting the wide application of optical fingerprint recognition technology in mobile terminal devices such as mobile phones.
发明内容SUMMARY OF THE INVENTION
本申请实施例提供了一种屏幕亮度的调整方法、装置和终端设备，本申请实施例还提供一种计算机可读存储介质，以实现在不影响指纹图像质量的前提下，在昏暗场景下降低指纹光斑亮度，改善光斑刺眼问题。Embodiments of the present application provide a method, apparatus, and terminal device for adjusting screen brightness, and embodiments of the present application also provide a computer-readable storage medium, so as to reduce the brightness in dim scenes without affecting the quality of fingerprint images. The brightness of the fingerprint spot can improve the glare problem of the spot.
第一方面，本申请实施例提供了一种屏幕亮度的调整方法，包括：终端设备检测到用户手指对上述终端设备的显示屏的按压操作之后，确定手指的按压操作以及指纹的按压区域是否满足指纹采图的触发条件；如果满足，则获取终端设备当前所处环境的亮度；响应于确定终端设备当前所处环境的亮度为第一亮度，确定指纹光 斑的亮度为第一光斑亮度，以及确定上述指纹光斑的曝光时长为第一时长；响应于确定终端设备当前所处环境的亮度为第二亮度，确定指纹光斑的亮度为第二光斑亮度，以及确定上述指纹光斑的曝光时长为第二时长；其中，所述第一光斑亮度不同于所述第二光斑亮度，所述第一时长不同于所述第二时长；在上述曝光时长结束之后，获得指纹图像传感器采集的上述用户手指的指纹图像；对上述指纹图像进行匹配识别。In a first aspect, an embodiment of the present application provides a method for adjusting screen brightness, including: after a terminal device detects a pressing operation of a user's finger on the display screen of the terminal device, determining whether the pressing operation of the finger and the pressing area of the fingerprint satisfy The trigger condition for fingerprint collection; if it is satisfied, obtain the brightness of the environment where the terminal device is currently located; in response to determining that the brightness of the environment where the terminal device is currently located is the first brightness, determine that the brightness of the fingerprint spot is the first spot brightness, and determine The exposure duration of the fingerprint spot is the first duration; in response to determining that the brightness of the environment where the terminal device is currently located is the second brightness, the brightness of the fingerprint spot is determined to be the second spot brightness, and the exposure duration of the fingerprint spot is determined to be the second duration ; wherein, the brightness of the first light spot is different from the brightness of the second light spot, and the first duration is different from the second duration; after the exposure duration ends, the fingerprint image of the user's finger collected by the fingerprint image sensor is obtained ; Match and identify the above fingerprint image.
其中一种可能的实现方式中，手指的按压操作以及指纹的按压区域满足指纹采图的触发条件可以为：手指的按压位置与指纹光斑的位置匹配，并且上述指纹的按压区域的面积与上述指纹光斑的面积的比值大于或等于预定阈值。In one of the possible implementations, the pressing operation of the finger and the pressing area of the fingerprint to satisfy the trigger condition for fingerprint acquisition may be: the pressing position of the finger matches the position of the fingerprint light spot, and the area of the pressing area of the fingerprint is the same as that of the fingerprint. The ratio of the areas of the light spots is greater than or equal to a predetermined threshold.
其中一种可能的实现方式中，当第一亮度小于第二亮度时，第一光斑亮度小于或等于第二光斑亮度，第一时长大于或等于第二时长。In one possible implementation manner, when the first brightness is less than the second brightness, the first spot brightness is less than or equal to the second spot brightness, and the first duration is greater than or equal to the second duration.
其中一种可能的实现方式中，获得指纹图像传感器采集的用户手指的指纹图像之前，如果手指的按压操作以及指纹的按压区域满足指纹采图的触发条件，则向指纹图像传感器发送采图通知，以指示上述指纹图像传感器采集用户手指的指纹图像。In one of the possible implementations, before obtaining the fingerprint image of the user's finger collected by the fingerprint image sensor, if the pressing operation of the finger and the pressing area of the fingerprint meet the triggering conditions for fingerprint acquisition, a notification of image acquisition is sent to the fingerprint image sensor. To instruct the above-mentioned fingerprint image sensor to collect the fingerprint image of the user's finger.
上述屏幕亮度的调整方法，终端设备通过环境光传感器获取该终端设备当前所处环境的亮度，根据该亮度确定指纹光斑的亮度和上述指纹光斑的曝光时长。针对屏下光学指纹的使用，在不影响屏下光学指纹的解锁性能的前提下，通过调整不同亮度下指纹光斑的亮度和对应的曝光时长，有效改善了目前屏下光学指纹在昏暗环境中光斑刺眼的问题。In the above method for adjusting screen brightness, the terminal device obtains the brightness of the environment in which the terminal device is currently located through an ambient light sensor, and determines the brightness of the fingerprint spot and the exposure duration of the fingerprint spot according to the brightness. For the use of under-screen optical fingerprints, without affecting the unlocking performance of under-screen optical fingerprints, by adjusting the brightness of the fingerprint spot and the corresponding exposure time under different brightness, the current spot of under-screen optical fingerprints in dark environments is effectively improved. dazzling question.
第二方面，本申请实施例提供了一种屏下光学指纹的采集方法，包括：终端设备检测到用户手指对上述终端设备的显示屏的按压操作之后，确定上述手指的按压操作以及指纹的按压区域是否满足指纹采图的触发条件；如果满足，则获取终端设备当前所处环境的亮度；根据终端设备当前所处环境的亮度，确定指纹光斑的亮度；以及选用与上述亮度对应的图像传感单元阵列，确定上述图像传感单元阵列对应硬件单元的光电转换效率、像素的有效收光面积和曝光时长；在曝光时长结束之后，获得指纹图像传感器采集的上述用户手指的指纹图像；其中，上述指纹图像是指纹图像传感器通过与上述亮度对应的图像传感单元阵列采集的；对上述指纹图像进行匹配识别。In a second aspect, an embodiment of the present application provides a method for collecting an under-screen optical fingerprint, including: after a terminal device detects a pressing operation of a user's finger on the display screen of the terminal device, determining the pressing operation of the finger and the pressing of the fingerprint Whether the area satisfies the trigger condition for fingerprint acquisition; if so, obtain the brightness of the current environment where the terminal device is located; determine the brightness of the fingerprint spot according to the brightness of the current environment where the terminal device is located; and select the image sensor corresponding to the above brightness a unit array, to determine the photoelectric conversion efficiency of the hardware unit corresponding to the image sensing unit array, the effective light-receiving area of the pixel and the exposure duration; after the exposure duration ends, obtain the fingerprint image of the user's finger collected by the fingerprint image sensor; wherein, the above The fingerprint image is collected by the fingerprint image sensor through the image sensing unit array corresponding to the above-mentioned brightness; the above-mentioned fingerprint image is matched and identified.
其中一种可能的实现方式中，上述手指的按压操作以及指纹的按压区域满足指纹采图的触发条件可以为：手指的按压位置与指纹光斑的位置匹配，并且上述指纹的按压区域的面积与上述指纹光斑的面积的比值大于或等于预定阈值。In one possible implementation manner, the above-mentioned pressing operation of the finger and the pressing area of the fingerprint to satisfy the triggering condition for fingerprint acquisition may be: the pressing position of the finger matches the position of the fingerprint spot, and the area of the pressing area of the fingerprint is the same as the above-mentioned The ratio of the areas of the fingerprint spots is greater than or equal to a predetermined threshold.
其中一种可能的实现方式中，根据终端设备当前所处环境的亮度，确定指纹光斑的亮度；以及选用与上述亮度对应的图像传感单元阵列，确定上述图像传感单元阵列对应硬件单元的光电转换效率、像素的有效收光面积和曝光时长可以为：响应于确定终端设备当前所处环境的亮度为第一亮度，确定指纹光斑的亮度为第一光斑亮度，以及确定与第一亮度对应的图像传感单元阵列为第一图像传感单元阵列，确定第一图像传感单元阵列对应硬件单元的光电转换效率、像素的有效收光面积和曝光时长分别为第一光电转换效率、第一有效收光面积和第一时长；In one of the possible implementations, the brightness of the fingerprint spot is determined according to the brightness of the environment where the terminal device is currently located; and an image sensing unit array corresponding to the above-mentioned brightness is selected to determine the photoelectricity of the hardware unit corresponding to the above-mentioned image sensing unit array. The conversion efficiency, the effective light-receiving area of the pixel, and the exposure duration may be: in response to determining that the brightness of the environment where the terminal device is currently located is the first brightness, determining that the brightness of the fingerprint spot is the first spot brightness, and determining the brightness corresponding to the first brightness. The image sensing unit array is the first image sensing unit array, and the photoelectric conversion efficiency of the hardware unit corresponding to the first image sensing unit array, the effective light-receiving area of the pixel, and the exposure duration are determined as the first photoelectric conversion efficiency, the first effective photoelectric conversion efficiency, and the first effective photoelectric conversion efficiency. The light-receiving area and the first duration;
响应于确定终端设备当前所处环境的亮度为第二亮度，确定指纹光斑的亮度为第二光斑亮度，以及确定与第二亮度对应的图像传感单元阵列为第二图像传感单元 阵列，确定第二图像传感单元阵列对应硬件单元的光电转换效率、像素的有效收光面积和曝光时长分别为第二光电转换效率、第二有效收光面积和第二时长；In response to determining that the brightness of the environment where the terminal device is currently located is the second brightness, determining that the brightness of the fingerprint spot is the second spot brightness, and determining that the image sensing unit array corresponding to the second brightness is the second image sensing unit array, determining The photoelectric conversion efficiency of the hardware unit corresponding to the second image sensing unit array, the effective light-receiving area of the pixel, and the exposure duration are the second photoelectric conversion efficiency, the second effective light-receiving area, and the second duration, respectively;
其中，第一光斑亮度不同于第二光斑亮度，第一光电转换效率不同于第二光电转换效率，第一有效收光面积不同于第二有效收光面积，第一时长不同于第二时长。The first light spot brightness is different from the second light spot brightness, the first photoelectric conversion efficiency is different from the second photoelectric conversion efficiency, the first effective light receiving area is different from the second effective light receiving area, and the first duration is different from the second duration.
其中一种可能的实现方式中，当第一亮度小于第二亮度时，第一光斑亮度小于或等于第二光斑亮度，第一光电转换效率大于或等于第二光电转换效率，第一有效收光面积大于或等于第二有效收光面积，第一时长大于或等于第二时长。In one possible implementation manner, when the first brightness is less than the second brightness, the brightness of the first spot is less than or equal to the brightness of the second spot, the first photoelectric conversion efficiency is greater than or equal to the second photoelectric conversion efficiency, and the first effective light receiving The area is greater than or equal to the second effective light-receiving area, and the first duration is greater than or equal to the second duration.
其中一种可能的实现方式中，获得指纹图像传感器采集的用户手指的指纹图像之前，如果上述手指的按压操作以及指纹的按压区域满足指纹采图的触发条件，则向指纹图像传感器发送采图通知，以指示上述指纹图像传感器采集用户手指的指纹图像。In one of the possible implementations, before obtaining the fingerprint image of the user's finger collected by the fingerprint image sensor, if the pressing operation of the finger and the pressing area of the fingerprint satisfy the triggering conditions for fingerprint image acquisition, a notification of image acquisition is sent to the fingerprint image sensor. , to instruct the above-mentioned fingerprint image sensor to collect the fingerprint image of the user's finger.
上述屏幕亮度的调整方法，终端设备通过环境光传感器获取该终端设备当前所处环境的亮度，根据该亮度确定指纹光斑的亮度；以及选用与上述亮度对应的图像传感单元阵列，确定上述图像传感单元阵列对应硬件单元的光电转换效率、像素的有效收光面积和曝光时长。针对屏下光学指纹的使用，在不影响屏下光学指纹的解锁性能的前提下，在不同的亮度级别下，指纹图像传感器选用不同灵敏度的图像传感单元阵列采集指纹图像，有效改善了目前屏下光学指纹在昏暗环境中光斑刺眼的问题。In the above method for adjusting screen brightness, the terminal device obtains the brightness of the environment in which the terminal device is currently located through an ambient light sensor, and determines the brightness of the fingerprint spot according to the brightness; and selects an image sensing unit array corresponding to the brightness to determine the image transmission. The sensing unit array corresponds to the photoelectric conversion efficiency of the hardware unit, the effective light-receiving area of the pixel and the exposure time. For the use of under-screen optical fingerprints, under the premise of not affecting the unlocking performance of under-screen optical fingerprints, under different brightness levels, the fingerprint image sensor selects image sensing unit arrays with different sensitivities to collect fingerprint images, which effectively improves the current screen. The problem of dazzling light spots in the dark environment of optical fingerprints.
第三方面，本申请实施例提供了一种屏下光学指纹的采集装置，该装置包含在终端设备中，该装置具有实现第一方面及第一方面的可能实现方式中终端设备行为的功能。功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。硬件或软件包括一个或多个与上述功能相对应的模块或单元。例如，接收模块或单元、处理模块或单元、发送模块或单元等。In a third aspect, an embodiment of the present application provides an under-screen optical fingerprint collection device, the device is included in a terminal device, and the device has a function of implementing the behavior of the terminal device in the first aspect and possible implementations of the first aspect. The functions can be implemented by hardware, or by executing corresponding software by hardware. The hardware or software includes one or more modules or units corresponding to the above functions. For example, a receiving module or unit, a processing module or unit, a transmitting module or unit, and the like.
第四方面，本申请实施例提供一种屏下光学指纹的采集装置，该装置包含在终端设备中，该装置具有实现第二方面及第二方面的可能实现方式中终端设备行为的功能。功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。硬件或软件包括一个或多个与上述功能相对应的模块或单元。例如，接收模块或单元、处理模块或单元、发送模块或单元等。In a fourth aspect, an embodiment of the present application provides a device for collecting an under-screen optical fingerprint, the device is included in a terminal device, and the device has a function of implementing the behavior of the terminal device in the second aspect and possible implementations of the second aspect. The functions can be implemented by hardware, or by executing corresponding software by hardware. The hardware or software includes one or more modules or units corresponding to the above functions. For example, a receiving module or unit, a processing module or unit, a transmitting module or unit, and the like.
第五方面，本申请实施例提供一种终端设备，包括：In a fifth aspect, an embodiment of the present application provides a terminal device, including:
一个或多个处理器；存储器；多个应用程序；以及一个或多个计算机程序，其中上述一个或多个计算机程序被存储在上述存储器中，上述一个或多个计算机程序包括指令，当上述指令被上述终端设备执行时，使得上述终端设备执行以下步骤：检测到用户手指对终端设备的显示屏的按压操作之后，确定手指的按压操作以及指纹的按压区域是否满足指纹采图的触发条件；如果满足，则获取终端设备当前所处环境的亮度；响应于确定上述终端设备当前所处环境的亮度为第一亮度，确定指纹光斑的亮度为第一光斑亮度，以及确定上述指纹光斑的曝光时长为第一时长；响应于确定终端设备当前所处环境的亮度为第二亮度，确定指纹光斑的亮度为第二光斑亮度，以及确定上述指纹光斑的曝光时长为第二时长；其中，第一光斑亮度不同于第二光斑亮度，第一时长不同于第二时长；在上述曝光时长结束之后，获得指纹图 像传感器采集的上述用户手指的指纹图像；对上述指纹图像进行匹配识别。one or more processors; a memory; a plurality of application programs; and one or more computer programs, wherein the one or more computer programs are stored in the memory, the one or more computer programs including instructions, when the instructions When executed by the above-mentioned terminal equipment, the above-mentioned terminal equipment is caused to perform the following steps: after detecting the pressing operation of the user's finger on the display screen of the terminal equipment, determine whether the pressing operation of the finger and the pressing area of the fingerprint satisfy the triggering condition of fingerprint sampling; If satisfied, then obtain the brightness of the environment where the terminal device is currently located; in response to determining that the brightness of the environment where the terminal device is currently located is the first brightness, determine the brightness of the fingerprint spot as the first spot brightness, and determine the exposure duration of the fingerprint spot as a first duration; in response to determining that the brightness of the environment where the terminal device is currently located is the second brightness, determining the brightness of the fingerprint spot as the second spot brightness, and determining the exposure duration of the fingerprint spot as the second duration; wherein, the first spot brightness Different from the second light spot brightness, the first duration is different from the second duration; after the exposure duration ends, the fingerprint image of the user's finger collected by the fingerprint image sensor is obtained; the fingerprint image is matched and identified.
其中一种可能的实现方式中，上述手指的按压操作以及指纹的按压区域满足指纹采图的触发条件可以为：手指的按压位置与指纹光斑的位置匹配，并且上述指纹的按压区域的面积与上述指纹光斑的面积的比值大于或等于预定阈值。In one possible implementation manner, the above-mentioned pressing operation of the finger and the pressing area of the fingerprint to satisfy the triggering condition for fingerprint acquisition may be: the pressing position of the finger matches the position of the fingerprint spot, and the area of the pressing area of the fingerprint is the same as the above-mentioned The ratio of the areas of the fingerprint spots is greater than or equal to a predetermined threshold.
其中一种可能的实现方式中，当第一亮度小于第二亮度时，第一光斑亮度小于或等于第二光斑亮度，第一时长大于或等于第二时长。In one possible implementation manner, when the first brightness is less than the second brightness, the first spot brightness is less than or equal to the second spot brightness, and the first duration is greater than or equal to the second duration.
其中一种可能的实现方式中，当上述指令被终端设备执行时，使得终端设备执行获得指纹图像传感器采集的用户手指的指纹图像的步骤之前，还执行以下步骤：如果手指的按压操作以及指纹的按压区域满足指纹采图的触发条件，则向指纹图像传感器发送采图通知，以指示指纹图像传感器采集上述用户手指的指纹图像。In one possible implementation manner, when the above instruction is executed by the terminal device, before the terminal device performs the step of obtaining the fingerprint image of the user's finger collected by the fingerprint image sensor, the following steps are also performed: If the pressing area satisfies the trigger condition for fingerprint capture, a capture notification is sent to the fingerprint image sensor to instruct the fingerprint image sensor to capture the fingerprint image of the user's finger.
第六方面，本申请实施例提供一种终端设备，包括：一个或多个处理器；存储器；多个应用程序；以及一个或多个计算机程序，其中上述一个或多个计算机程序被存储在上述存储器中，上述一个或多个计算机程序包括指令，当上述指令被终端设备执行时，使得终端设备执行以下步骤：检测到用户手指对终端设备的显示屏的按压操作之后，确定上述手指的按压操作以及指纹的按压区域是否满足指纹采图的触发条件；如果满足，则获取终端设备当前所处环境的亮度；根据上述终端设备当前所处环境的亮度，确定指纹光斑的亮度；以及选用与上述亮度对应的图像传感单元阵列，确定上述图像传感单元阵列对应硬件单元的光电转换效率、像素的有效收光面积和曝光时长；在上述曝光时长结束之后，获得指纹图像传感器采集的用户手指的指纹图像；其中，上述指纹图像是指纹图像传感器通过与上述亮度对应的图像传感单元阵列采集的；对上述指纹图像进行匹配识别。In a sixth aspect, an embodiment of the present application provides a terminal device, including: one or more processors; a memory; a plurality of application programs; and one or more computer programs, wherein the one or more computer programs are stored in the above In the memory, the above-mentioned one or more computer programs include instructions, and when the above-mentioned instructions are executed by the terminal device, the terminal device is caused to perform the following steps: after detecting the pressing operation of the user's finger on the display screen of the terminal device, determine the pressing operation of the above-mentioned finger And whether the pressing area of the fingerprint satisfies the triggering condition of fingerprint sampling; if so, obtain the brightness of the environment where the terminal device is currently located; determine the brightness of the fingerprint spot according to the brightness of the environment where the terminal device is currently located; For the corresponding image sensing unit array, determine the photoelectric conversion efficiency of the hardware unit corresponding to the image sensing unit array, the effective light-receiving area of the pixel, and the exposure duration; after the exposure duration ends, obtain the fingerprint of the user's finger collected by the fingerprint image sensor. an image; wherein, the fingerprint image is collected by a fingerprint image sensor through an image sensing unit array corresponding to the brightness; and the fingerprint image is matched and identified.
其中一种可能的实现方式中，上述手指的按压操作以及指纹的按压区域满足指纹采图的触发条件可以为：上述手指的按压位置与指纹光斑的位置匹配，并且上述指纹的按压区域的面积与上述指纹光斑的面积的比值大于或等于预定阈值。In one possible implementation manner, the above-mentioned pressing operation of the finger and the pressing area of the fingerprint satisfy the triggering condition for fingerprint capture may be: the pressing position of the finger matches the position of the fingerprint spot, and the area of the pressing area of the fingerprint is the same as that of the fingerprint. The ratio of the areas of the fingerprint light spots is greater than or equal to a predetermined threshold.
其中一种可能的实现方式中，当上述指令被终端设备执行时，使得终端设备执行根据上述终端设备当前所处环境的亮度，确定指纹光斑的亮度；以及选用与上述亮度对应的图像传感单元阵列，确定上述图像传感单元阵列对应硬件单元的光电转换效率、像素的有效收光面积和曝光时长的步骤可以为：响应于确定终端设备当前所处环境的亮度为第一亮度，确定指纹光斑的亮度为第一光斑亮度，以及确定与第一亮度对应的图像传感单元阵列为第一图像传感单元阵列，确定第一图像传感单元阵列对应硬件单元的光电转换效率、像素的有效收光面积和曝光时长分别为第一光电转换效率、第一有效收光面积和第一时长；响应于确定终端设备当前所处环境的亮度为第二亮度，确定指纹光斑的亮度为第二光斑亮度，以及确定与上述第二亮度对应的图像传感单元阵列为第二图像传感单元阵列，确定第二图像传感单元阵列对应硬件单元的光电转换效率、像素的有效收光面积和曝光时长分别为第二光电转换效率、第二有效收光面积和第二时长；其中，第一光斑亮度不同于第二光斑亮度，第一光电转换效率不同于第二光电转换效率，第一有效收光面积不同于第二有效收光面积，第一时长不同于第二时长。In one of the possible implementations, when the above instruction is executed by the terminal device, the terminal device is made to determine the brightness of the fingerprint spot according to the brightness of the environment where the terminal device is currently located; and select an image sensing unit corresponding to the above brightness. Array, the steps of determining the photoelectric conversion efficiency of the hardware unit corresponding to the image sensing unit array, the effective light-receiving area of the pixel and the exposure duration may be: in response to determining that the brightness of the environment where the terminal device is currently located is the first brightness, determining the fingerprint spot. The brightness of the first light spot is the brightness of the first light spot, and the image sensing unit array corresponding to the first brightness is determined as the first image sensing unit array, and the photoelectric conversion efficiency of the hardware unit corresponding to the first image sensing unit array and the effective reception rate of the pixel are determined. The light area and the exposure duration are respectively the first photoelectric conversion efficiency, the first effective light-receiving area, and the first duration; in response to determining that the brightness of the environment where the terminal device is currently located is the second brightness, the brightness of the fingerprint spot is determined to be the second spot brightness , and determine that the image sensing unit array corresponding to the above-mentioned second brightness is the second image sensing unit array, and determine the photoelectric conversion efficiency of the hardware unit corresponding to the second image sensing unit array, the effective light-receiving area of the pixel and the exposure time respectively are the second photoelectric conversion efficiency, the second effective light-receiving area, and the second duration; wherein, the brightness of the first light spot is different from the brightness of the second light spot, the first photoelectric conversion efficiency is different from the second photoelectric conversion efficiency, and the first effective light-receiving area is Different from the second effective light-receiving area, the first duration is different from the second duration.
其中一种可能的实现方式中，当第一亮度小于第二亮度时，第一光斑亮度小于 或等于第二光斑亮度，第一光电转换效率大于或等于第二光电转换效率，第一有效收光面积大于或等于第二有效收光面积，第一时长大于或等于第二时长。In one possible implementation manner, when the first brightness is less than the second brightness, the brightness of the first spot is less than or equal to the brightness of the second spot, the first photoelectric conversion efficiency is greater than or equal to the second photoelectric conversion efficiency, and the first effective light receiving The area is greater than or equal to the second effective light-receiving area, and the first duration is greater than or equal to the second duration.
其中一种可能的实现方式中，当上述指令被终端设备执行时，使得终端设备执行获得指纹图像传感器采集的上述用户手指的指纹图像的步骤之前，还执行以下步骤：如果手指的按压操作以及指纹的按压区域满足指纹采图的触发条件，则向指纹图像传感器发送采图通知，以指示指纹图像传感器采集上述用户手指的指纹图像。In one possible implementation manner, when the above instruction is executed by the terminal device, before the terminal device performs the step of obtaining the fingerprint image of the user's finger collected by the fingerprint image sensor, the following steps are also performed: if the pressing operation of the finger and the fingerprint If the pressed area meets the trigger condition for fingerprint capture, a capture notification is sent to the fingerprint image sensor to instruct the fingerprint image sensor to capture the fingerprint image of the user's finger.
应当理解的是，本申请实施例的第三方面和第五方面与本申请实施例的第一方面的技术方案一致，各方面及对应的可行实施方式所取得的有益效果相似，不再赘述。It should be understood that the third and fifth aspects of the embodiments of the present application are consistent with the technical solutions of the first aspect of the embodiments of the present application, and the beneficial effects obtained by each aspect and the corresponding feasible implementation manner are similar, and will not be repeated.
应当理解的是，本申请实施例的第四方面和第六方面与本申请实施例的第二方面的技术方案一致，各方面及对应的可行实施方式所取得的有益效果相似，不再赘述。It should be understood that the fourth aspect and the sixth aspect of the embodiment of the present application are consistent with the technical solutions of the second aspect of the embodiment of the present application, and the beneficial effects obtained by each aspect and the corresponding feasible implementation manner are similar, and will not be repeated.
第七方面，本申请实施例提供一种计算机可读存储介质，上述计算机可读存储介质中存储有计算机程序，当其在计算机上运行时，使得计算机执行第一方面提供的方法。In a seventh aspect, an embodiment of the present application provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when the computer program runs on a computer, causes the computer to execute the method provided in the first aspect.
第八方面，本申请实施例提供一种计算机可读存储介质，上述计算机可读存储介质中存储有计算机程序，当其在计算机上运行时，使得计算机执行第二方面提供的方法。In an eighth aspect, an embodiment of the present application provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when it runs on a computer, causes the computer to execute the method provided in the second aspect.
第九方面，本申请实施例提供一种计算机程序，当上述计算机程序被计算机执行时，用于执行第一方面提供的方法。In a ninth aspect, an embodiment of the present application provides a computer program for executing the method provided in the first aspect when the computer program is executed by a computer.
第十方面，本申请实施例提供一种计算机程序，当上述计算机程序被计算机执行时，用于执行第二方面提供的方法。In a tenth aspect, an embodiment of the present application provides a computer program for executing the method provided in the second aspect when the computer program is executed by a computer.
在一种可能的设计中，第九方面和第十方面中的程序可以全部或者部分存储在与处理器封装在一起的存储介质上，也可以部分或者全部存储在不与处理器封装在一起的存储器上。In a possible design, the programs of the ninth aspect and the tenth aspect may be stored in whole or in part on a storage medium packaged with the processor, or may be stored in part or in part in a storage medium not packaged with the processor on the memory.
附图说明Description of drawings
图1为现有相关技术中提供的一种典型的屏下光学指纹成像***的结构示意图；1 is a schematic structural diagram of a typical under-screen optical fingerprint imaging system provided in the related art;
图2为现有相关技术提供的屏下光学指纹的图像质量随屏幕亮度变化的曲线图；Fig. 2 is the graph that the image quality of the optical fingerprint under the screen provided by the prior art changes with the screen brightness;
图3为本申请一个实施例提供的终端设备的结构示意图；FIG. 3 is a schematic structural diagram of a terminal device provided by an embodiment of the present application;
图4为本申请一个实施例提供的屏下光学指纹成像的示意图；4 is a schematic diagram of an under-screen optical fingerprint imaging provided by an embodiment of the present application;
图5为本申请一个实施例提供的屏下光学指纹的图像质量与曝光时间和屏幕亮度的关系示意图；5 is a schematic diagram of the relationship between the image quality of the under-screen optical fingerprint, exposure time and screen brightness according to an embodiment of the present application;
图6为本申请一个实施例提供的屏幕亮度的调整方法的流程图；6 is a flowchart of a method for adjusting screen brightness provided by an embodiment of the present application;
图7为常规指纹图像传感器的像素分布示意图；7 is a schematic diagram of a pixel distribution of a conventional fingerprint image sensor;
图8为本申请一个实施例提供的不同灵敏度像素的拼接示意图；FIG. 8 is a schematic diagram of a mosaic of pixels with different sensitivity provided by an embodiment of the present application;
图9为本申请另一个实施例提供的屏幕亮度的调整方法的流程图；9 is a flowchart of a method for adjusting screen brightness provided by another embodiment of the present application;
图10为本申请另一个实施例提供的终端设备的结构示意图。FIG. 10 is a schematic structural diagram of a terminal device provided by another embodiment of the present application.
具体实施方式Detailed ways
本申请的实施方式部分使用的术语仅用于对本申请的具体实施例进行解释，而非旨在限定本申请。The terms used in the embodiments of the present application are only used to explain specific embodiments of the present application, and are not intended to limit the present application.
现在，屏下光学指纹技术在手机或平板电脑等终端设备上已得到了广泛应用。图1为现有相关技术中提供的一种典型的屏下光学指纹成像***的结构示意图。该***的指纹采集过程如下：开始采集指纹图像时，人体手指1放在有机发光二极管(organic light-emitting diode，OLED)显示屏2上方；OLED显示屏2作为光源发光，产生发射光4；发射光4向上传播到达手指表面后会发生反射形成反射光5；人体手指不同区域(如“谷”和“脊”)在与OLED显示屏2贴合时形成的接触差异会造成不同区域的反射光5存在差异。手指表面的反射光5穿过OLED显示屏2后照射到屏幕下方的指纹图像传感器3上，后续通过光电转换与信号处理实现指纹图像的采集。图1中，6为外界环境干扰光。Now, under-screen optical fingerprint technology has been widely used in terminal devices such as mobile phones or tablet computers. FIG. 1 is a schematic structural diagram of a typical under-screen optical fingerprint imaging system provided in the related art. The fingerprint collection process of the system is as follows: when starting to collect the fingerprint image, the human finger 1 is placed above the organic light-emitting diode (organic light-emitting diode, OLED) display screen 2; the OLED display screen 2 emits light as a light source to generate emission light 4; After light 4 propagates upward and reaches the surface of the finger, it will be reflected to form reflected light 5; the difference in contact formed by different areas of human fingers (such as "valley" and "ridge") when they are attached to the OLED display screen 2 will cause reflected light in different areas. 5 There are differences. The reflected light 5 on the surface of the finger passes through the OLED display screen 2 and then irradiates the fingerprint image sensor 3 below the screen, and then the fingerprint image is collected through photoelectric conversion and signal processing. In Fig. 1, 6 is the disturbance light of the external environment.
现有相关技术中提供的屏下光学指纹的采图流程可以为：在终端设备的显示屏检测到用户手指的按压动作后，通过屏幕的触控功能确认手指的按压位置以及指纹的按压区域是否满足指纹触发采图的需求。如果按压位置与指纹的结构位置一致，同时指纹按压区域超过指纹投影光斑的比例(例如50％以上)，终端设备的操作***发出指纹采图通知，屏幕对应区域的光斑点亮到固定亮度(例如：600nit)。指纹传感器接收到采图通知之后，按照设定的固定采图参数(例如：曝光时间为50-60ms)，曝光完成后获得对应的指纹图像，具体的采图次数可以根据需求采集一张或者多张。然后，基于获取的指纹图像，进行后续的匹配识别。The process of capturing an optical fingerprint under the screen provided in the related art may be as follows: after the display screen of the terminal device detects the pressing action of the user's finger, the touch function of the screen is used to confirm whether the pressing position of the finger and the pressing area of the fingerprint are not. Meet the needs of fingerprint-triggered image capture. If the pressed position is consistent with the structure of the fingerprint, and the pressed area of the fingerprint exceeds the proportion of the projected spot of the fingerprint (for example, more than 50%), the operating system of the terminal device will issue a fingerprint capture notification, and the light spot in the corresponding area of the screen will be bright to a fixed brightness (for example, : 600nit). After the fingerprint sensor receives the image collection notification, according to the set fixed image collection parameters (for example, the exposure time is 50-60ms), the corresponding fingerprint image is obtained after the exposure is completed. open. Then, based on the acquired fingerprint image, subsequent matching identification is performed.
图2为现有相关技术提供的屏下光学指纹的图像质量随屏幕亮度变化的曲线图。如图2所示，现有的屏下光学指纹识别技术，为了获取清晰的指纹图像，在一定屏幕亮度范围内，指纹的图像质量(信号量或者信噪比(signal noise ratio，SNR))随着屏幕亮度的提升而改善。目前市场上的终端设备一般要求指纹解锁过程的屏幕亮度在600nit以上(该亮度高于正常屏幕的显示亮度400nit)。此外，为保持指纹图像的稳定性，一般要求屏下光学指纹的指纹解锁光斑亮度在各使用场景下均保持一致。FIG. 2 is a graph showing the change of the image quality of the optical fingerprint under the screen with the brightness of the screen provided by the related art. As shown in Figure 2, in the existing optical fingerprint recognition technology under the screen, in order to obtain a clear fingerprint image, within a certain screen brightness range, the image quality (signal amount or signal noise ratio (SNR)) of the fingerprint varies with the It improves as the screen brightness increases. At present, terminal devices on the market generally require that the screen brightness of the fingerprint unlocking process be above 600 nit (the brightness is higher than the display brightness of the normal screen, which is 400 nit). In addition, in order to maintain the stability of the fingerprint image, the brightness of the fingerprint unlocking spot of the optical fingerprint under the screen is generally required to be consistent in each usage scenario.
而人眼对亮度的反应并非是线性的，比如在昏暗的房间内，人看到的烛光是明亮的，而同样的烛光放在正午的阳光下，人甚至连火苗都看不见，说明人眼对亮度变化的反应随着亮度的增加而减弱。The human eye's response to brightness is not linear. For example, in a dim room, people see bright candlelight, but the same candlelight is placed in the noon sunlight, and people can't even see the flames, which means that the human eye The response to changes in brightness diminishes as the brightness increases.
结合屏下光学指纹的实际使用情况，用户在使用光学屏下指纹的过程中，会不可避免地存在因按压不全导致光斑漏光的问题。而用户在不同环境状态下对于屏幕的亮度敏感程度不同，特别是在昏暗场景(例如：傍晚和/或电影院中等)下人眼对光线的敏感度更大，该类场景下使用屏下指纹，屏幕高亮光斑的漏光会导致用户出现刺眼的感受，直接影响该类场景下用户的解锁体验，进而限制了光学指纹识别技术在手机等移动终端设备中的广泛应用。Combined with the actual use of under-screen optical fingerprints, users will inevitably have the problem of spot light leakage due to incomplete pressing during the process of using under-screen optical fingerprints. However, users have different degrees of sensitivity to the brightness of the screen in different environmental states, especially in dim scenes (for example: evening and/or movie theaters, etc.), the human eye is more sensitive to light, and the use of off-screen fingerprints in such scenes, The light leakage of the bright spot on the screen will cause the user to feel dazzling, which directly affects the user's unlocking experience in this type of scenario, thereby limiting the wide application of optical fingerprint recognition technology in mobile terminal devices such as mobile phones.
基于以上问题，本申请实施例提供一种屏幕亮度的调整方法，通过环境光传感器确定终端设备所处环境类型，根据环境类型(例如：昏暗、常规或强环境光)选择指纹的解锁参数配置和流程判断，在不影响解锁性能的情况下，实现屏幕亮度的自动调整，改善用户在使用屏下光学指纹解锁的过程中，光斑漏光刺眼的体验。Based on the above problems, an embodiment of the present application provides a method for adjusting screen brightness. The ambient light sensor is used to determine the type of environment in which the terminal device is located, and the fingerprint unlocking parameter configuration and The process is judged to realize automatic adjustment of screen brightness without affecting the unlocking performance, and improve the user's experience of dazzling light leakage during the process of unlocking with the optical fingerprint under the screen.
本申请实施例提供的屏幕亮度的调整方法可以应用于终端设备，其中，上述终端设备可以为智能手机、平板电脑、可穿戴设备、车载设备、增强现实(augmented reality，AR)/虚拟现实(virtual reality，VR)设备、笔记本电脑、超级移动个人计算机(ultra-mobile personal computer，UMPC)、上网本或个人数字助理(personal digital assistant，PDA)等设备；本申请实施例对终端设备的具体类型不作任何限制。The method for adjusting screen brightness provided by the embodiments of the present application may be applied to terminal devices, where the above-mentioned terminal devices may be smartphones, tablet computers, wearable devices, vehicle-mounted devices, augmented reality (AR)/virtual reality (virtual reality) reality, VR) devices, notebook computers, ultra-mobile personal computers (ultra-mobile personal computers, UMPCs), netbooks, or personal digital assistants (personal digital assistants, PDAs) and other devices; the embodiments of this application do not make any assumptions about the specific types of terminal devices. limit.
示例性的，图3为本申请一个实施例提供的终端设备的结构示意图，图3以终端设备为智能手机为例进行说明。如图3所示，终端设备100可以包括处理器110，外部存储器接口120，内部存储器121，通用串行总线(universal serial bus，USB)接口130，充电管理模块140，电源管理模块141，电池142，天线1，天线2，移动通信模块150，无线通信模块160，音频模块170，扬声器170A，受话器170B，麦克风170C，耳机接口170D，传感器模块180，按键190，马达191，指示器192，摄像头193，显示屏194，以及用户标识模块(subscriber identification module，SIM)卡接口195等。其中传感器模块180可以包括压力传感器180A，陀螺仪传感器180B，气压传感器180C，磁传感器180D，加速度传感器180E，距离传感器180F，接近光传感器180G，指纹传感器180H，温度传感器180J，触摸传感器180K，环境光传感器180L，骨传导传感器180M等。Exemplarily, FIG. 3 is a schematic structural diagram of a terminal device provided by an embodiment of the present application, and FIG. 3 is described by taking the terminal device being a smart phone as an example. As shown in FIG. 3 , the terminal device 100 may include a processor 110 , an external memory interface 120 , an internal memory 121 , a universal serial bus (USB) interface 130 , a charging management module 140 , a power management module 141 , and a battery 142 , Antenna 1, Antenna 2, Mobile Communication Module 150, Wireless Communication Module 160, Audio Module 170, Speaker 170A, Receiver 170B, Microphone 170C, Headphone Interface 170D, Sensor Module 180, Key 190, Motor 191, Indicator 192, Camera 193 , a display screen 194, and a subscriber identification module (subscriber identification module, SIM) card interface 195 and the like. The sensor module 180 may include a pressure sensor 180A, a gyroscope sensor 180B, an air pressure sensor 180C, a magnetic sensor 180D, an acceleration sensor 180E, a distance sensor 180F, a proximity light sensor 180G, a fingerprint sensor 180H, a temperature sensor 180J, a touch sensor 180K, and ambient light. Sensor 180L, bone conduction sensor 180M, etc.
可以理解的是，本申请实施例示意的结构并不构成对终端设备100的具体限定。在本申请另一些实施例中，终端设备100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。图示的部件可以以硬件，软件或软件和硬件的组合实现。It can be understood that the structures illustrated in the embodiments of the present application do not constitute a specific limitation on the terminal device 100 . In other embodiments of the present application, the terminal device 100 may include more or less components than those shown in the drawings, or combine some components, or separate some components, or arrange different components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.
处理器110可以包括一个或多个处理单元，例如：处理器110可以包括应用处理器(application processor，AP)，调制解调处理器，图形处理器(graphics processing unit，GPU)，图像信号处理器(image signal processor，ISP)，控制器，视频编解码器，数字信号处理器(digital signal processor，DSP)，基带处理器，和/或神经网络处理器(neural-network processing unit，NPU)等。其中，不同的处理单元可以是独立的器件，也可以集成在一个或多个处理器中。The processor 110 may include one or more processing units, for example, the processor 110 may include an application processor (application processor, AP), a modem processor, a graphics processor (graphics processing unit, GPU), an image signal processor (image signal processor, ISP), controller, video codec, digital signal processor (digital signal processor, DSP), baseband processor, and/or neural-network processing unit (neural-network processing unit, NPU), etc. Wherein, different processing units may be independent devices, or may be integrated in one or more processors.
控制器可以根据指令操作码和时序信号，产生操作控制信号，完成取指令和执行指令的控制。The controller can generate an operation control signal according to the instruction operation code and timing signal, and complete the control of fetching and executing instructions.
处理器110中还可以设置存储器，用于存储指令和数据。在一些实施例中，处理器110中的存储器为高速缓冲存储器。该存储器可以保存处理器110刚用过或循环使用的指令或数据。如果处理器110需要再次使用该指令或数据，可从所述存储器中直接调用。避免了重复存取，减少了处理器110的等待时间，因而提高了***的效率。A memory may also be provided in the processor 110 for storing instructions and data. In some embodiments, the memory in processor 110 is cache memory. This memory may hold instructions or data that have just been used or recycled by the processor 110 . If the processor 110 needs to use the instruction or data again, it can be called directly from the memory. Repeated accesses are avoided and the latency of the processor 110 is reduced, thereby increasing the efficiency of the system.
在一些实施例中，处理器110可以包括一个或多个接口。接口可以包括集成电路(inter-integrated circuit，I2C)接口，集成电路内置音频(inter-integrated circuit sound，I2S)接口，脉冲编码调制(pulse code modulation，PCM)接口，通用异步收发传输器(universal asynchronous receiver/transmitter，UART)接口，移动产业处理器接口(mobile industry processor interface，MIPI)，通用输入输出(general-purpose input/output，GPIO)接口，用户标识模块(subscriber identity module，SIM)接口，和 /或通用串行总线(universal serial bus，USB)接口等。In some embodiments, the processor 110 may include one or more interfaces. The interface may include an integrated circuit (inter-integrated circuit, I2C) interface, an integrated circuit built-in audio (inter-integrated circuit sound, I2S) interface, a pulse code modulation (pulse code modulation, PCM) interface, a universal asynchronous transceiver (universal asynchronous transmitter) receiver/transmitter, UART) interface, mobile industry processor interface (MIPI), general-purpose input/output (GPIO) interface, subscriber identity module (SIM) interface, and / or universal serial bus (universal serial bus, USB) interface, etc.
I2C接口是一种双向同步串行总线，包括一根串行数据线(serial data line，SDA)和一根串行时钟线(derail clock line，DCL)。在一些实施例中，处理器110可以包含多组I2C总线。处理器110可以通过不同的I2C总线接口分别耦合触摸传感器180K，充电器，闪光灯，摄像头193等。例如：处理器110可以通过I2C接口耦合触摸传感器180K，使处理器110与触摸传感器180K通过I2C总线接口通信，实现终端设备100的触摸功能。The I2C interface is a bidirectional synchronous serial bus that includes a serial data line (SDA) and a serial clock line (DCL). In some embodiments, the processor 110 may contain multiple sets of I2C buses. The processor 110 can be respectively coupled to the touch sensor 180K, the charger, the flash, the camera 193 and the like through different I2C bus interfaces. For example, the processor 110 may couple the touch sensor 180K through the I2C interface, so that the processor 110 and the touch sensor 180K communicate with each other through the I2C bus interface, so as to realize the touch function of the terminal device 100 .
I2S接口可以用于音频通信。在一些实施例中，处理器110可以包含多组I2S总线。处理器110可以通过I2S总线与音频模块170耦合，实现处理器110与音频模块170之间的通信。在一些实施例中，音频模块170可以通过I2S接口向无线通信模块160传递音频信号，实现通过蓝牙耳机接听电话的功能。The I2S interface can be used for audio communication. In some embodiments, the processor 110 may contain multiple sets of I2S buses. The processor 110 may be coupled with the audio module 170 through an I2S bus to implement communication between the processor 110 and the audio module 170 . In some embodiments, the audio module 170 can transmit audio signals to the wireless communication module 160 through the I2S interface, so as to realize the function of answering calls through a Bluetooth headset.
PCM接口也可以用于音频通信，将模拟信号抽样，量化和编码。在一些实施例中，音频模块170与无线通信模块160可以通过PCM总线接口耦合。在一些实施例中，音频模块170也可以通过PCM接口向无线通信模块160传递音频信号，实现通过蓝牙耳机接听电话的功能。所述I2S接口和所述PCM接口都可以用于音频通信。The PCM interface can also be used for audio communications, sampling, quantizing and encoding analog signals. In some embodiments, the audio module 170 and the wireless communication module 160 may be coupled through a PCM bus interface. In some embodiments, the audio module 170 can also transmit audio signals to the wireless communication module 160 through the PCM interface, so as to realize the function of answering calls through the Bluetooth headset. Both the I2S interface and the PCM interface can be used for audio communication.
UART接口是一种通用串行数据总线，用于异步通信。该总线可以为双向通信总线。它将要传输的数据在串行通信与并行通信之间转换。在一些实施例中，UART接口通常被用于连接处理器110与无线通信模块160。例如：处理器110通过UART接口与无线通信模块160中的蓝牙模块通信，实现蓝牙功能。在一些实施例中，音频模块170可以通过UART接口向无线通信模块160传递音频信号，实现通过蓝牙耳机播放音乐的功能。The UART interface is a universal serial data bus used for asynchronous communication. The bus may be a bidirectional communication bus. It converts the data to be transmitted between serial communication and parallel communication. In some embodiments, a UART interface is typically used to connect the processor 110 with the wireless communication module 160 . For example, the processor 110 communicates with the Bluetooth module in the wireless communication module 160 through the UART interface to implement the Bluetooth function. In some embodiments, the audio module 170 can transmit audio signals to the wireless communication module 160 through the UART interface, so as to realize the function of playing music through the Bluetooth headset.
MIPI接口可以被用于连接处理器110与显示屏194，摄像头193等***器件。MIPI接口包括摄像头串行接口(camera serial interface，CSI)，显示屏串行接口(display serial interface，DSI)等。在一些实施例中，处理器110和摄像头193通过CSI接口通信，实现终端设备100的拍摄功能。处理器110和显示屏194通过DSI接口通信，实现终端设备100的显示功能。The MIPI interface can be used to connect the processor 110 with peripheral devices such as the display screen 194 and the camera 193 . MIPI interfaces include camera serial interface (CSI), display serial interface (DSI), etc. In some embodiments, the processor 110 communicates with the camera 193 through the CSI interface, so as to realize the shooting function of the terminal device 100 . The processor 110 communicates with the display screen 194 through the DSI interface to implement the display function of the terminal device 100 .
GPIO接口可以通过软件配置。GPIO接口可以被配置为控制信号，也可被配置为数据信号。在一些实施例中，GPIO接口可以用于连接处理器110与摄像头193，显示屏194，无线通信模块160，音频模块170，传感器模块180等。GPIO接口还可以被配置为I2C接口，I2S接口，UART接口，MIPI接口等。The GPIO interface can be configured by software. The GPIO interface can be configured as a control signal or as a data signal. In some embodiments, the GPIO interface may be used to connect the processor 110 with the camera 193, the display screen 194, the wireless communication module 160, the audio module 170, the sensor module 180, and the like. The GPIO interface can also be configured as I2C interface, I2S interface, UART interface, MIPI interface, etc.
USB接口130是符合USB标准规范的接口，具体可以是Mini USB接口，Micro USB接口，USB Type C接口等。USB接口130可以用于连接充电器为终端设备100充电，也可以用于终端设备100与***设备之间传输数据。也可以用于连接耳机，通过耳机播放音频。该接口还可以用于连接其他电子设备，例如AR设备等。The USB interface 130 is an interface that conforms to the USB standard specification, and may specifically be a Mini USB interface, a Micro USB interface, a USB Type C interface, and the like. The USB interface 130 can be used to connect a charger to charge the terminal device 100, and can also be used to transmit data between the terminal device 100 and peripheral devices. It can also be used to connect headphones to play audio through the headphones. The interface can also be used to connect other electronic devices, such as AR devices.
可以理解的是，本发明实施例示意的各模块间的接口连接关系，只是示意性说明，并不构成对终端设备100的结构限定。在本申请另一些实施例中，终端设备100也可以采用上述实施例中不同的接口连接方式，或多种接口连接方式的组合。It can be understood that the interface connection relationship between the modules illustrated in the embodiment of the present invention is only a schematic illustration, and does not constitute a structural limitation of the terminal device 100 . In other embodiments of the present application, the terminal device 100 may also adopt different interface connection manners in the foregoing embodiments, or a combination of multiple interface connection manners.
充电管理模块140用于从充电器接收充电输入。其中，充电器可以是无线充电器，也可以是有线充电器。在一些有线充电的实施例中，充电管理模块140可以通 过USB接口130接收有线充电器的充电输入。在一些无线充电的实施例中，充电管理模块140可以通过终端设备100的无线充电线圈接收无线充电输入。充电管理模块140为电池142充电的同时，还可以通过电源管理模块141为终端设备100供电。The charging management module 140 is used to receive charging input from the charger. The charger may be a wireless charger or a wired charger. In some wired charging embodiments, the charging management module 140 may receive charging input from the wired charger through the USB interface 130. In some wireless charging embodiments, the charging management module 140 may receive wireless charging input through the wireless charging coil of the terminal device 100 . While the charging management module 140 charges the battery 142 , the terminal device 100 can also be powered by the power management module 141 .
电源管理模块141用于连接电池142，充电管理模块140与处理器110。电源管理模块141接收电池142和/或充电管理模块140的输入，为处理器110，内部存储器121，显示屏194，摄像头193，和无线通信模块160等供电。电源管理模块141还可以用于监测电池容量，电池循环次数，电池健康状态(漏电，阻抗)等参数。在其他一些实施例中，电源管理模块141也可以设置于处理器110中。在另一些实施例中，电源管理模块141和充电管理模块140也可以设置于同一个器件中。The power management module 141 is used for connecting the battery 142 , the charging management module 140 and the processor 110 . The power management module 141 receives input from the battery 142 and/or the charging management module 140, and supplies power to the processor 110, the internal memory 121, the display screen 194, the camera 193, and the wireless communication module 160. The power management module 141 can also be used to monitor parameters such as battery capacity, battery cycle times, battery health status (leakage, impedance). In some other embodiments, the power management module 141 may also be provided in the processor 110 . In other embodiments, the power management module 141 and the charging management module 140 may also be provided in the same device.
终端设备100的无线通信功能可以通过天线1，天线2，移动通信模块150，无线通信模块160，调制解调处理器以及基带处理器等实现。The wireless communication function of the terminal device 100 may be implemented by the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, the modulation and demodulation processor, the baseband processor, and the like.
天线1和天线2用于发射和接收电磁波信号。终端设备100中的每个天线可用于覆盖单个或多个通信频带。不同的天线还可以复用，以提高天线的利用率。例如：可以将天线1复用为无线局域网的分集天线。在另外一些实施例中，天线可以和调谐开关结合使用。Antenna 1 and Antenna 2 are used to transmit and receive electromagnetic wave signals. Each antenna in terminal device 100 may be used to cover a single or multiple communication frequency bands. Different antennas can also be reused to improve antenna utilization. For example, the antenna 1 can be multiplexed as a diversity antenna of the wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch.
移动通信模块150可以提供应用在终端设备100上的包括2G/3G/4G/5G等无线通信的解决方案。移动通信模块150可以包括至少一个滤波器，开关，功率放大器，低噪声放大器(low noise amplifier，LNA)等。移动通信模块150可以由天线1接收电磁波，并对接收的电磁波进行滤波，放大等处理，传送至调制解调处理器进行解调。移动通信模块150还可以对经调制解调处理器调制后的信号放大，经天线1转为电磁波辐射出去。在一些实施例中，移动通信模块150的至少部分功能模块可以被设置于处理器110中。在一些实施例中，移动通信模块150的至少部分功能模块可以与处理器110的至少部分模块被设置在同一个器件中。The mobile communication module 150 may provide a wireless communication solution including 2G/3G/4G/5G, etc. applied on the terminal device 100 . The mobile communication module 150 may include at least one filter, switch, power amplifier, low noise amplifier (LNA) and the like. The mobile communication module 150 can receive electromagnetic waves from the antenna 1, filter and amplify the received electromagnetic waves, and transmit them to the modulation and demodulation processor for demodulation. The mobile communication module 150 can also amplify the signal modulated by the modulation and demodulation processor, and then turn it into an electromagnetic wave for radiation through the antenna 1 . In some embodiments, at least part of the functional modules of the mobile communication module 150 may be provided in the processor 110 . In some embodiments, at least part of the functional modules of the mobile communication module 150 may be provided in the same device as at least part of the modules of the processor 110 .
调制解调处理器可以包括调制器和解调器。其中，调制器用于将待发送的低频基带信号调制成中高频信号。解调器用于将接收的电磁波信号解调为低频基带信号。随后解调器将解调得到的低频基带信号传送至基带处理器处理。低频基带信号经基带处理器处理后，被传递给应用处理器。应用处理器通过音频设备(不限于扬声器170A，受话器170B等)输出声音信号，或通过显示屏194显示图像或视频。在一些实施例中，调制解调处理器可以是独立的器件。在另一些实施例中，调制解调处理器可以独立于处理器110，与移动通信模块150或其他功能模块设置在同一个器件中。The modem processor may include a modulator and a demodulator. Wherein, the modulator is used to modulate the low frequency baseband signal to be sent into a medium and high frequency signal. The demodulator is used to demodulate the received electromagnetic wave signal into a low frequency baseband signal. Then the demodulator transmits the demodulated low-frequency baseband signal to the baseband processor for processing. The low frequency baseband signal is processed by the baseband processor and passed to the application processor. The application processor outputs sound signals through audio devices (not limited to the speaker 170A, the receiver 170B, etc.), or displays images or videos through the display screen 194 . In some embodiments, the modem processor may be a stand-alone device. In other embodiments, the modem processor may be independent of the processor 110, and may be provided in the same device as the mobile communication module 150 or other functional modules.
无线通信模块160可以提供应用在终端设备100上的包括无线局域网(wireless local area networks，WLAN)(如无线保真(wireless fidelity，Wi-Fi)网络)，蓝牙(bluetooth，BT)，全球导航卫星***(global navigation satellite system，GNSS)，调频(frequency modulation，FM)，近距离无线通信技术(near field communication，NFC)，红外技术(infrared，IR)等无线通信的解决方案。无线通信模块160可以是集成至少一个通信处理模块的一个或多个器件。无线通信模块160经由天线2接收电磁波，将电磁波信号调频以及滤波处理，将处理后的信号发送到处理器110。无线通信模块160还可以从处理器110接收待发送的信号，对其进行调频，放大，经天线2转为电磁波辐射出去。The wireless communication module 160 can provide applications on the terminal device 100 including wireless local area networks (WLAN) (such as wireless fidelity (Wi-Fi) networks), bluetooth (BT), global navigation satellites Wireless communication solutions such as global navigation satellite system (GNSS), frequency modulation (FM), near field communication (NFC), and infrared technology (IR). The wireless communication module 160 may be one or more devices integrating at least one communication processing module. The wireless communication module 160 receives electromagnetic waves via the antenna 2 , frequency modulates and filters the electromagnetic wave signals, and sends the processed signals to the processor 110 . The wireless communication module 160 can also receive the signal to be sent from the processor 110 , perform frequency modulation on it, amplify it, and convert it into electromagnetic waves for radiation through the antenna 2 .
在一些实施例中，终端设备100的天线1和移动通信模块150耦合，天线2和无线通信模块160耦合，使得终端设备100可以通过无线通信技术与网络以及其他设备通信。所述无线通信技术可以包括全球移动通讯***(global system for mobile communications，GSM)，通用分组无线服务(general packet radio service，GPRS)，码分多址接入(code division multiple access，CDMA)，宽带码分多址(wideband code division multiple access，WCDMA)，时分码分多址(time-division code division multiple access，TD-SCDMA)，长期演进(long term evolution，LTE)，BT，GNSS，WLAN，NFC，FM，和/或IR技术等。所述GNSS可以包括全球卫星定位***(global positioning system，GPS)，全球导航卫星***(global navigation satellite system，GLONASS)，北斗卫星导航***(beidou navigation satellite system，BDS)，准天顶卫星***(quasi-zenith satellite system，QZSS)和/或星基增强***(satellite based augmentation systems，SBAS)。In some embodiments, the antenna 1 of the terminal device 100 is coupled with the mobile communication module 150, and the antenna 2 is coupled with the wireless communication module 160, so that the terminal device 100 can communicate with the network and other devices through wireless communication technology. The wireless communication technology may include global system for mobile communications (GSM), general packet radio service (GPRS), code division multiple access (CDMA), broadband Code Division Multiple Access (WCDMA), Time Division Code Division Multiple Access (TD-SCDMA), Long Term Evolution (LTE), BT, GNSS, WLAN, NFC , FM, and/or IR technology, etc. The GNSS may include global positioning system (global positioning system, GPS), global navigation satellite system (global navigation satellite system, GLONASS), Beidou navigation satellite system (beidou navigation satellite system, BDS), quasi-zenith satellite system (quasi -zenith satellite system, QZSS) and/or satellite based augmentation systems (SBAS).
终端设备100通过GPU，显示屏194，以及应用处理器等实现显示功能。GPU为图像处理的微处理器，连接显示屏194和应用处理器。GPU用于执行数学和几何计算，用于图形渲染。处理器110可包括一个或多个GPU，其执行程序指令以生成或改变显示信息。The terminal device 100 implements a display function through a GPU, a display screen 194, an application processor, and the like. The GPU is a microprocessor for image processing, and is connected to the display screen 194 and the application processor. The GPU is used to perform mathematical and geometric calculations for graphics rendering. Processor 110 may include one or more GPUs that execute program instructions to generate or alter display information.
显示屏194用于显示图像，视频等。显示屏194包括显示面板。显示面板可以采用液晶显示屏(liquid crystal display，LCD)，有机发光二极管(organic light-emitting diode，OLED)，有源矩阵有机发光二极体或主动矩阵有机发光二极体(active-matrix organic light emitting diode的，AMOLED)，柔性发光二极管(flex light-emitting diode，FLED)，Miniled，MicroLed，Micro-oLed，量子点发光二极管(quantum dot light emitting diodes，QLED)等。在一些实施例中，终端设备100可以包括1个或N个显示屏194，N为大于1的正整数。Display screen 194 is used to display images, videos, and the like. Display screen 194 includes a display panel. The display panel can be a liquid crystal display (LCD), an organic light-emitting diode (OLED), an active-matrix organic light-emitting diode or an active-matrix organic light-emitting diode (active-matrix organic light). emitting diode, AMOLED), flexible light-emitting diode (flex light-emitting diode, FLED), Miniled, MicroLed, Micro-oLed, quantum dot light-emitting diode (quantum dot light emitting diodes, QLED) and so on. In some embodiments, the terminal device 100 may include one or N display screens 194 , where N is a positive integer greater than one.
终端设备100可以通过ISP，摄像头193，视频编解码器，GPU，显示屏194以及应用处理器等实现拍摄功能。The terminal device 100 can realize the shooting function through the ISP, the camera 193, the video codec, the GPU, the display screen 194 and the application processor.
ISP用于处理摄像头193反馈的数据。例如，拍照时，打开快门，光线通过镜头被传递到摄像头感光元件上，光信号转换为电信号，摄像头感光元件将所述电信号传递给ISP处理，转化为肉眼可见的图像。ISP还可以对图像的噪点，亮度，肤色进行算法优化。ISP还可以对拍摄场景的曝光，色温等参数优化。在一些实施例中，ISP可以设置在摄像头193中。The ISP is used to process the data fed back by the camera 193 . For example, when taking a photo, the shutter is opened, the light is transmitted to the camera photosensitive element through the lens, the light signal is converted into an electrical signal, and the camera photosensitive element transmits the electrical signal to the ISP for processing, and converts it into an image visible to the naked eye. ISP can also perform algorithm optimization on image noise, brightness, and skin tone. ISP can also optimize the exposure, color temperature and other parameters of the shooting scene. In some embodiments, the ISP may be provided in the camera 193 .
摄像头193用于捕获静态图像或视频。物体通过镜头生成光学图像投射到感光元件。感光元件可以是电荷耦合器件(charge coupled device，CCD)或互补金属氧化物半导体(complementary metal-oxide-semiconductor，CMOS)光电晶体管。感光元件把光信号转换成电信号，之后将电信号传递给ISP转换成数字图像信号。ISP将数字图像信号输出到DSP加工处理。DSP将数字图像信号转换成标准的RGB，YUV等格式的图像信号。在一些实施例中，终端设备100可以包括1个或N个摄像头193，N为大于1的正整数。Camera 193 is used to capture still images or video. The object is projected through the lens to generate an optical image onto the photosensitive element. The photosensitive element may be a charge coupled device (CCD) or a complementary metal-oxide-semiconductor (CMOS) phototransistor. The photosensitive element converts the optical signal into an electrical signal, and then transmits the electrical signal to the ISP to convert it into a digital image signal. The ISP outputs the digital image signal to the DSP for processing. DSP converts digital image signals into standard RGB, YUV and other formats of image signals. In some embodiments, the terminal device 100 may include 1 or N cameras 193 , where N is a positive integer greater than 1.
数字信号处理器用于处理数字信号，除了可以处理数字图像信号，还可以处理其他数字信号。例如，当终端设备100在频点选择时，数字信号处理器用于对频点 能量进行傅里叶变换等。A digital signal processor is used to process digital signals, in addition to processing digital image signals, it can also process other digital signals. For example, when the terminal device 100 selects a frequency point, the digital signal processor is used to perform Fourier transform on the frequency point energy and the like.
视频编解码器用于对数字视频压缩或解压缩。终端设备100可以支持一种或多种视频编解码器。这样，终端设备100可以播放或录制多种编码格式的视频，例如：动态图像专家组(moving picture experts group，MPEG)1，MPEG2，MPEG3，MPEG4等。Video codecs are used to compress or decompress digital video. The terminal device 100 may support one or more video codecs. In this way, the terminal device 100 can play or record videos in various encoding formats, for example, moving picture experts group (moving picture experts group, MPEG) 1, MPEG2, MPEG3, MPEG4 and so on.
NPU为神经网络(neural-network，NN)计算处理器，通过借鉴生物神经网络结构，例如借鉴人脑神经元之间传递模式，对输入信息快速处理，还可以不断的自学习。通过NPU可以实现终端设备100的智能认知等应用，例如：图像识别，人脸识别，语音识别，文本理解等。The NPU is a neural-network (NN) computing processor. By drawing on the structure of biological neural networks, such as the transfer mode between neurons in the human brain, it can quickly process the input information, and can continuously learn by itself. Applications such as intelligent cognition of the terminal device 100 can be implemented through the NPU, such as image recognition, face recognition, speech recognition, text understanding, and the like.
外部存储器接口120可以用于连接外部存储卡，例如Micro SD卡，实现扩展终端设备100的存储能力。外部存储卡通过外部存储器接口120与处理器110通信，实现数据存储功能。例如将音乐，视频等文件保存在外部存储卡中。The external memory interface 120 can be used to connect an external memory card, such as a Micro SD card, to expand the storage capacity of the terminal device 100 . The external memory card communicates with the processor 110 through the external memory interface 120 to realize the data storage function. For example to save files like music, video etc in external memory card.
内部存储器121可以用于存储计算机可执行程序代码，所述可执行程序代码包括指令。内部存储器121可以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***，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。存储数据区可存储终端设备100使用过程中所创建的数据(比如音频数据，电话本等)等。此外，内部存储器121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，通用闪存存储器(universal flash storage，UFS)等。处理器110通过运行存储在内部存储器121的指令，和/或存储在设置于处理器中的存储器的指令，执行终端设备100的各种功能应用以及数据处理。Internal memory 121 may be used to store computer executable program code, which includes instructions. The internal memory 121 may include a storage program area and a storage data area. The storage program area can store an operating system, an application program required for at least one function (such as a sound playback function, an image playback function, etc.), and the like. The storage data area may store data (such as audio data, phone book, etc.) created during the use of the terminal device 100 and the like. In addition, the internal memory 121 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, universal flash storage (UFS), and the like. The processor 110 executes various functional applications and data processing of the terminal device 100 by executing instructions stored in the internal memory 121 and/or instructions stored in a memory provided in the processor.
终端设备100可以通过音频模块170，扬声器170A，受话器170B，麦克风170C，耳机接口170D，以及应用处理器等实现音频功能。例如音乐播放，录音等。The terminal device 100 may implement audio functions through an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D, an application processor, and the like. Such as music playback, recording, etc.
音频模块170用于将数字音频信息转换成模拟音频信号输出，也用于将模拟音频输入转换为数字音频信号。音频模块170还可以用于对音频信号编码和解码。在一些实施例中，音频模块170可以设置于处理器110中，或将音频模块170的部分功能模块设置于处理器110中。The audio module 170 is used for converting digital audio information into analog audio signal output, and also for converting analog audio input into digital audio signal. Audio module 170 may also be used to encode and decode audio signals. In some embodiments, the audio module 170 may be provided in the processor 110 , or some functional modules of the audio module 170 may be provided in the processor 110 .
扬声器170A，也称“喇叭”，用于将音频电信号转换为声音信号。终端设备100可以通过扬声器170A收听音乐，或收听免提通话。Speaker 170A, also referred to as a "speaker", is used to convert audio electrical signals into sound signals. The terminal device 100 can listen to music through the speaker 170A, or listen to a hands-free call.
受话器170B，也称“听筒”，用于将音频电信号转换成声音信号。当终端设备100接听电话或语音信息时，可以通过将受话器170B靠近人耳接听语音。The receiver 170B, also referred to as "earpiece", is used to convert audio electrical signals into sound signals. When the terminal device 100 answers a call or a voice message, the voice can be answered by placing the receiver 170B close to the human ear.
麦克风170C，也称“话筒”，“传声器”，用于将声音信号转换为电信号。当拨打电话或发送语音信息时，用户可以通过人嘴靠近麦克风170C发声，将声音信号输入到麦克风170C。终端设备100可以设置至少一个麦克风170C。在另一些实施例中，终端设备100可以设置两个麦克风170C，除了采集声音信号，还可以实现降噪功能。在另一些实施例中，终端设备100还可以设置三个，四个或更多麦克风170C，实现采集声音信号，降噪，还可以识别声音来源，实现定向录音功能等。The microphone 170C, also called "microphone" or "microphone", is used to convert sound signals into electrical signals. When making a call or sending a voice message, the user can make a sound by approaching the microphone 170C through a human mouth, and input the sound signal into the microphone 170C. The terminal device 100 may be provided with at least one microphone 170C. In other embodiments, the terminal device 100 may be provided with two microphones 170C, which may implement a noise reduction function in addition to collecting sound signals. In other embodiments, the terminal device 100 may further be provided with three, four or more microphones 170C to collect sound signals, reduce noise, identify sound sources, and implement directional recording functions.
耳机接口170D用于连接有线耳机。耳机接口170D可以是USB接口130，也可以是3.5mm的开放移动电子设备平台(open mobile terminal platform，OMTP)标准接口，美国蜂窝电信工业协会(cellular telecommunications industry association of the  USA，CTIA)标准接口。The earphone jack 170D is used to connect wired earphones. The earphone interface 170D may be the USB interface 130, or may be a 3.5mm open mobile terminal platform (OMTP) standard interface, a cellular telecommunications industry association of the USA (CTIA) standard interface.
压力传感器180A用于感受压力信号，可以将压力信号转换成电信号。在一些实施例中，压力传感器180A可以设置于显示屏194。压力传感器180A的种类很多，如电阻式压力传感器，电感式压力传感器，电容式压力传感器等。电容式压力传感器可以是包括至少两个具有导电材料的平行板。当有力作用于压力传感器180A，电极之间的电容改变。终端设备100根据电容的变化确定压力的强度。当有触摸操作作用于显示屏194，终端设备100根据压力传感器180A检测所述触摸操作强度。终端设备100也可以根据压力传感器180A的检测信号计算触摸的位置。在一些实施例中，作用于相同触摸位置，但不同触摸操作强度的触摸操作，可以对应不同的操作指令。例如：当有触摸操作强度小于第一压力阈值的触摸操作作用于短消息应用图标时，执行查看短消息的指令。当有触摸操作强度大于或等于第一压力阈值的触摸操作作用于短消息应用图标时，执行新建短消息的指令。The pressure sensor 180A is used to sense pressure signals, and can convert the pressure signals into electrical signals. In some embodiments, the pressure sensor 180A may be provided on the display screen 194 . There are many types of pressure sensors 180A, such as resistive pressure sensors, inductive pressure sensors, capacitive pressure sensors, and the like. The capacitive pressure sensor may be comprised of at least two parallel plates of conductive material. When a force is applied to the pressure sensor 180A, the capacitance between the electrodes changes. The terminal device 100 determines the intensity of the pressure according to the change in capacitance. When a touch operation acts on the display screen 194, the terminal device 100 detects the intensity of the touch operation according to the pressure sensor 180A. The terminal device 100 may also calculate the touched position according to the detection signal of the pressure sensor 180A. In some embodiments, touch operations acting on the same touch position but with different touch operation intensities may correspond to different operation instructions. For example, when a touch operation whose intensity is less than the first pressure threshold acts on the short message application icon, the instruction for viewing the short message is executed. When a touch operation with a touch operation intensity greater than or equal to the first pressure threshold acts on the short message application icon, the instruction to create a new short message is executed.
陀螺仪传感器180B可以用于确定终端设备100的运动姿态。在一些实施例中，可以通过陀螺仪传感器180B确定终端设备100围绕三个轴(即，x，y和z轴)的角速度。陀螺仪传感器180B可以用于拍摄防抖。示例性的，当按下快门，陀螺仪传感器180B检测终端设备100抖动的角度，根据角度计算出镜头模组需要补偿的距离，让镜头通过反向运动抵消终端设备100的抖动，实现防抖。陀螺仪传感器180B还可以用于导航，体感游戏场景。The gyro sensor 180B may be used to determine the motion attitude of the terminal device 100 . In some embodiments, the angular velocity of the end device 100 about three axes (ie, the x, y and z axes) may be determined by the gyro sensor 180B. The gyro sensor 180B can be used for image stabilization. Exemplarily, when the shutter is pressed, the gyro sensor 180B detects the shaking angle of the terminal device 100, calculates the distance to be compensated by the lens module according to the angle, and allows the lens to offset the shaking of the terminal device 100 through reverse motion to achieve anti-shake. The gyro sensor 180B can also be used for navigation and somatosensory game scenarios.
气压传感器180C用于测量气压。在一些实施例中，终端设备100通过气压传感器180C测得的气压值计算海拔高度，辅助定位和导航。The air pressure sensor 180C is used to measure air pressure. In some embodiments, the terminal device 100 calculates the altitude through the air pressure value measured by the air pressure sensor 180C to assist in positioning and navigation.
磁传感器180D包括霍尔传感器。终端设备100可以利用磁传感器180D检测翻盖皮套的开合。在一些实施例中，当终端设备100是翻盖机时，终端设备100可以根据磁传感器180D检测翻盖的开合。进而根据检测到的皮套的开合状态或翻盖的开合状态，设置翻盖自动解锁等特性。The magnetic sensor 180D includes a Hall sensor. The terminal device 100 can detect the opening and closing of the flip holster using the magnetic sensor 180D. In some embodiments, when the terminal device 100 is a flip machine, the terminal device 100 can detect the opening and closing of the flip according to the magnetic sensor 180D. Further, according to the detected opening and closing state of the leather case or the opening and closing state of the flip cover, characteristics such as automatic unlocking of the flip cover are set.
加速度传感器180E可检测终端设备100在各个方向上(一般为三轴)加速度的大小。当终端设备100静止时可检测出重力的大小及方向。还可以用于识别电子设备姿态，应用于横竖屏切换，计步器等应用。The acceleration sensor 180E can detect the magnitude of the acceleration of the terminal device 100 in various directions (generally three axes). The magnitude and direction of gravity can be detected when the terminal device 100 is stationary. It can also be used to identify the posture of electronic devices, and can be used in applications such as horizontal and vertical screen switching, pedometers, etc.
距离传感器180F，用于测量距离。终端设备100可以通过红外或激光测量距离。在一些实施例中，拍摄场景，终端设备100可以利用距离传感器180F测距以实现快速对焦。Distance sensor 180F for measuring distance. The terminal device 100 can measure the distance through infrared or laser. In some embodiments, when shooting a scene, the terminal device 100 can use the distance sensor 180F to measure the distance to achieve fast focusing.
接近光传感器180G可以包括例如发光二极管(LED)和光检测器，例如光电二极管。发光二极管可以是红外发光二极管。终端设备100通过发光二极管向外发射红外光。终端设备100使用光电二极管检测来自附近物体的红外反射光。当检测到充分的反射光时，可以确定终端设备100附近有物体。当检测到不充分的反射光时，终端设备100可以确定终端设备100附近没有物体。终端设备100可以利用接近光传感器180G检测用户手持终端设备100贴近耳朵通话，以便自动熄灭屏幕达到省电的目的。接近光传感器180G也可用于皮套模式，口袋模式自动解锁与锁屏。Proximity light sensor 180G may include, for example, light emitting diodes (LEDs) and light detectors, such as photodiodes. The light emitting diodes may be infrared light emitting diodes. The terminal device 100 emits infrared light to the outside through the light emitting diode. The terminal device 100 detects infrared reflected light from nearby objects using a photodiode. When sufficient reflected light is detected, it can be determined that there is an object near the terminal device 100 . When insufficient reflected light is detected, the terminal device 100 may determine that there is no object near the terminal device 100 . The terminal device 100 can use the proximity light sensor 180G to detect that the user holds the terminal device 100 close to the ear to talk, so as to automatically turn off the screen to save power. Proximity light sensor 180G can also be used in holster mode, pocket mode automatically unlocks and locks the screen.
环境光传感器180L用于感知环境光亮度。终端设备100可以根据感知的环境光亮度自适应调节显示屏194亮度。环境光传感器180L也可用于拍照时自动调节白平 衡。环境光传感器180L还可以与接近光传感器180G配合，检测终端设备100是否在口袋里，以防误触。The ambient light sensor 180L is used to sense ambient light brightness. The terminal device 100 can adaptively adjust the brightness of the display screen 194 according to the perceived ambient light brightness. The ambient light sensor 180L can also be used to automatically adjust the white balance when taking pictures. The ambient light sensor 180L can also cooperate with the proximity light sensor 180G to detect whether the terminal device 100 is in a pocket, so as to prevent accidental touch.
指纹图像传感器180H用于采集指纹。终端设备100可以利用采集的指纹特性实现指纹解锁，访问应用锁，指纹拍照，指纹接听来电等。The fingerprint image sensor 180H is used to collect fingerprints. The terminal device 100 can use the collected fingerprint characteristics to realize fingerprint unlocking, accessing application locks, taking photos with fingerprints, answering incoming calls with fingerprints, and the like.
温度传感器180J用于检测温度。在一些实施例中，终端设备100利用温度传感器180J检测的温度，执行温度处理策略。例如，当温度传感器180J上报的温度超过阈值，终端设备100执行降低位于温度传感器180J附近的处理器的性能，以便降低功耗实施热保护。在另一些实施例中，当温度低于另一阈值时，终端设备100对电池142加热，以避免低温导致终端设备100异常关机。在其他一些实施例中，当温度低于又一阈值时，终端设备100对电池142的输出电压执行升压，以避免低温导致的异常关机。The temperature sensor 180J is used to detect the temperature. In some embodiments, the terminal device 100 uses the temperature detected by the temperature sensor 180J to execute the temperature processing strategy. For example, when the temperature reported by the temperature sensor 180J exceeds a threshold value, the terminal device 100 reduces the performance of the processor located near the temperature sensor 180J, so as to reduce power consumption and implement thermal protection. In other embodiments, when the temperature is lower than another threshold, the terminal device 100 heats the battery 142 to avoid abnormal shutdown of the terminal device 100 caused by the low temperature. In some other embodiments, when the temperature is lower than another threshold, the terminal device 100 boosts the output voltage of the battery 142 to avoid abnormal shutdown caused by low temperature.
触摸传感器180K，也称“触控器件”。触摸传感器180K可以设置于显示屏194，由触摸传感器180K与显示屏194组成触摸屏，也称“触控屏”。触摸传感器180K用于检测作用于其上或附近的触摸操作。触摸传感器可以将检测到的触摸操作传递给应用处理器，以确定触摸事件类型。可以通过显示屏194提供与触摸操作相关的视觉输出。在另一些实施例中，触摸传感器180K也可以设置于终端设备100的表面，与显示屏194所处的位置不同。Touch sensor 180K, also called "touch device". The touch sensor 180K may be disposed on the display screen 194 , and the touch sensor 180K and the display screen 194 form a touch screen, also called a “touch screen”. The touch sensor 180K is used to detect a touch operation on or near it. The touch sensor can pass the detected touch operation to the application processor to determine the type of touch event. Visual output related to touch operations may be provided through display screen 194 . In other embodiments, the touch sensor 180K may also be disposed on the surface of the terminal device 100 , which is different from the position where the display screen 194 is located.
骨传导传感器180M可以获取振动信号。在一些实施例中，骨传导传感器180M可以获取人体声部振动骨块的振动信号。骨传导传感器180M也可以接触人体脉搏，接收血压跳动信号。在一些实施例中，骨传导传感器180M也可以设置于耳机中，结合成骨传导耳机。音频模块170可以基于所述骨传导传感器180M获取的声部振动骨块的振动信号，解析出语音信号，实现语音功能。应用处理器可以基于所述骨传导传感器180M获取的血压跳动信号解析心率信息，实现心率检测功能。The bone conduction sensor 180M can acquire vibration signals. In some embodiments, the bone conduction sensor 180M can acquire the vibration signal of the vibrating bone mass of the human voice. The bone conduction sensor 180M can also contact the pulse of the human body and receive the blood pressure beating signal. In some embodiments, the bone conduction sensor 180M can also be disposed in the earphone, combined with the bone conduction earphone. The audio module 170 can analyze the voice signal based on the vibration signal of the vocal vibration bone block obtained by the bone conduction sensor 180M, so as to realize the voice function. The application processor can analyze the heart rate information based on the blood pressure beat signal obtained by the bone conduction sensor 180M, and realize the function of heart rate detection.
按键190包括开机键，音量键等。按键190可以是机械按键。也可以是触摸式按键。终端设备100可以接收按键输入，产生与终端设备100的用户设置以及功能控制有关的键信号输入。The keys 190 include a power-on key, a volume key, and the like. Keys 190 may be mechanical keys. It can also be a touch key. The terminal device 100 may receive key input and generate key signal input related to user settings and function control of the terminal device 100 .
马达191可以产生振动提示。马达191可以用于来电振动提示，也可以用于触摸振动反馈。例如，作用于不同应用(例如拍照，音频播放等)的触摸操作，可以对应不同的振动反馈效果。作用于显示屏194不同区域的触摸操作，马达191也可对应不同的振动反馈效果。不同的应用场景(例如：时间提醒，接收信息，闹钟，游戏等)也可以对应不同的振动反馈效果。触摸振动反馈效果还可以支持自定义。Motor 191 can generate vibrating cues. The motor 191 can be used for vibrating alerts for incoming calls, and can also be used for touch vibration feedback. For example, touch operations acting on different applications (such as taking pictures, playing audio, etc.) can correspond to different vibration feedback effects. The motor 191 can also correspond to different vibration feedback effects for touch operations on different areas of the display screen 194 . Different application scenarios (for example: time reminder, receiving information, alarm clock, games, etc.) can also correspond to different vibration feedback effects. The touch vibration feedback effect can also support customization.
指示器192可以是指示灯，可以用于指示充电状态，电量变化，也可以用于指示消息，未接来电，通知等。The indicator 192 can be an indicator light, which can be used to indicate the charging state, the change of the power, and can also be used to indicate a message, a missed call, a notification, and the like.
SIM卡接口195用于连接SIM卡。SIM卡可以通过***SIM卡接口195，或从SIM卡接口195拔出，实现和终端设备100的接触和分离。终端设备100可以支持1个或N个SIM卡接口，N为大于1的正整数。SIM卡接口195可以支持Nano SIM卡，Micro SIM卡，SIM卡等。同一个SIM卡接口195可以同时***多张卡。所述多张卡的类型可以相同，也可以不同。SIM卡接口195也可以兼容不同类型的SIM卡。SIM卡接口195也可以兼容外部存储卡。终端设备100通过SIM卡和网络交互， 实现通话以及数据通信等功能。在一些实施例中，终端设备100采用eSIM，即：嵌入式SIM卡。eSIM卡可以嵌在终端设备100中，不能和终端设备100分离。The SIM card interface 195 is used to connect a SIM card. The SIM card can be contacted and separated from the terminal device 100 by inserting into the SIM card interface 195 or pulling out from the SIM card interface 195 . The terminal device 100 may support 1 or N SIM card interfaces, where N is a positive integer greater than 1. The SIM card interface 195 can support Nano SIM card, Micro SIM card, SIM card and so on. Multiple cards can be inserted into the same SIM card interface 195 at the same time. The types of the plurality of cards may be the same or different. The SIM card interface 195 can also be compatible with different types of SIM cards. The SIM card interface 195 is also compatible with external memory cards. The terminal device 100 interacts with the network through the SIM card to implement functions such as call and data communication. In some embodiments, the terminal device 100 adopts an eSIM, that is, an embedded SIM card. The eSIM card can be embedded in the terminal device 100 and cannot be separated from the terminal device 100 .
为了便于理解，本申请以下实施例将以具有图3所示结构的终端设备为例，结合附图，对本申请实施例提供的屏幕亮度的调整方法进行具体阐述。For ease of understanding, the following embodiments of the present application will take the terminal device having the structure shown in FIG. 3 as an example, and in conjunction with the accompanying drawings, to specifically describe the method for adjusting the screen brightness provided by the embodiments of the present application.
图4为本申请一个实施例提供的屏下光学指纹成像的示意图，图4中，41为人体手指；42为OLED显示屏，该OLED显示屏可以为图3所示终端设备100的显示屏194；43为指纹图像传感器，该指纹图像传感器可以为终端设备100的指纹图像传感器180H；44为OLED显示屏的发射光；45为手指表面的反射光；46为外界环境干扰光；47为环境光传感器，该环境光传感器可以为终端设备100的环境光传感器180L；48为处理器，该处理器可以为终端设备100的处理器110。FIG. 4 is a schematic diagram of under-screen optical fingerprint imaging according to an embodiment of the present application. In FIG. 4 , 41 is a human finger; 42 is an OLED display screen, and the OLED display screen may be the display screen 194 of the terminal device 100 shown in FIG. 3 . 43 is a fingerprint image sensor, which can be the fingerprint image sensor 180H of the terminal device 100; 44 is the emission light of the OLED display screen; 45 is the reflected light on the finger surface; 46 is the external environment disturbance light; 47 is the ambient light A sensor, the ambient light sensor may be the ambient light sensor 180L of the terminal device 100 ; 48 is a processor, and the processor may be the processor 110 of the terminal device 100 .
具体地，终端设备中的环境光传感器47被用于获取当前终端设备所处环境的光强度信息；处理器48根据环境光传感器47获取的光强度信息判断指纹图像传感器43所处的工作环境是昏暗、常规还是强光。根据指纹图像传感器43所处的工作环境，处理器48通过选择不同的软硬件参数配置(例如：不同的指纹光斑亮度，匹配不同曝光时间或者不同的灵敏度感光单元)，实现在不同外界环境光情况下(如昏暗、常规或强光)优化指纹光斑的亮度，改善用户在使用中光斑按压不全导致的漏光刺眼的问题。Specifically, the ambient light sensor 47 in the terminal device is used to obtain the light intensity information of the current environment where the terminal device is located; the processor 48 determines, according to the light intensity information obtained by the ambient light sensor 47, whether the working environment of the fingerprint image sensor 43 is Dim, regular or bright light. According to the working environment in which the fingerprint image sensor 43 is located, the processor 48 selects different hardware and software parameter configurations (for example, different fingerprint light spot brightness, matching different exposure times or different sensitivity photosensitive units), so as to realize the operation under different ambient light conditions. Optimize the brightness of the fingerprint light spot under low light conditions (such as dim, normal or strong light), and improve the problem of light leakage and glare caused by incomplete pressing of the light spot during use.
图5为本申请一个实施例提供的屏下光学指纹的图像质量与曝光时间和屏幕亮度的关系示意图。从图5可以看出，在屏下光学指纹成像时，在避免指纹图像传感器过曝的前提下，延长指纹光斑的曝光时长t或者提升指纹光斑的亮度L都能够提升指纹图像的质量。因此，为获取稳定清晰的指纹图像，屏幕亮度降低时可以通过适当的延长曝光时长，来保证指纹图像传感器获取的信号量保持不变，保障指纹图像的质量。FIG. 5 is a schematic diagram of the relationship between image quality of an under-screen optical fingerprint, exposure time, and screen brightness according to an embodiment of the present application. It can be seen from Figure 5 that during the optical fingerprint imaging under the screen, under the premise of avoiding the overexposure of the fingerprint image sensor, extending the exposure time t of the fingerprint spot or increasing the brightness L of the fingerprint spot can improve the quality of the fingerprint image. Therefore, in order to obtain a stable and clear fingerprint image, when the screen brightness is reduced, the exposure time can be appropriately extended to ensure that the amount of signals obtained by the fingerprint image sensor remains unchanged and the quality of the fingerprint image is guaranteed.
图6为本申请一个实施例提供的屏幕亮度的调整方法的流程图，如图6所示，上述屏幕亮度的调整方法可以包括：FIG. 6 is a flowchart of a method for adjusting screen brightness provided by an embodiment of the present application. As shown in FIG. 6 , the above-mentioned method for adjusting screen brightness may include:
步骤601，终端设备100检测到用户手指对终端设备100的显示屏194的按压操作之后，确定上述手指的按压操作以及指纹的按压区域是否满足指纹采图的触发条件。 Step 601 , after the terminal device 100 detects the pressing operation of the user's finger on the display screen 194 of the terminal device 100 , it determines whether the pressing operation of the finger and the pressing area of the fingerprint meet the triggering conditions for fingerprint capture.
具体地，终端设备100可以通过处理器110，以及压力传感器180A和/或触摸传感器180K检测用户手指对显示屏194的按压操作，进而确定上述手指的按压操作以及指纹的按压区域是否满足指纹采图的触发条件。Specifically, the terminal device 100 can detect the pressing operation of the user's finger on the display screen 194 through the processor 110 and the pressure sensor 180A and/or the touch sensor 180K, and then determine whether the above-mentioned pressing operation of the finger and the pressing area of the fingerprint satisfy the fingerprint acquisition requirements. trigger condition.
步骤602，如果满足，则获取终端设备100当前所处环境的亮度。 Step 602, if satisfied, acquire the brightness of the environment where the terminal device 100 is currently located.
具体地，上述手指的按压操作以及指纹的按压区域满足指纹采图的触发条件可以包括：手指的按压位置与指纹光斑的位置匹配，并且上述指纹的按压区域的面积与上述指纹光斑的面积的比值大于或等于预定阈值。Specifically, the above-mentioned pressing operation of the finger and the pressing area of the fingerprint meeting the triggering conditions for fingerprint capture may include: the pressing position of the finger matches the position of the fingerprint spot, and the ratio of the area of the pressing area of the fingerprint to the area of the fingerprint spot greater than or equal to a predetermined threshold.
其中，上述预定阈值可以在具体实现时，根据***性能和/或实现需求等自行设定，本实施例对上述预定阈值的大小不作限定，举例来说，上述预定阈值可以为50％。The above-mentioned predetermined threshold may be set by itself during specific implementation according to system performance and/or implementation requirements, and this embodiment does not limit the size of the above-mentioned predetermined threshold. For example, the above-mentioned predetermined threshold may be 50%.
具体地，终端设备100中的处理器110可以从环境光传感器180L获取终端设备 100当前所处环境的亮度。Specifically, the processor 110 in the terminal device 100 may acquire the brightness of the environment where the terminal device 100 is currently located from the ambient light sensor 180L.
步骤603，响应于确定终端设备100当前所处环境的亮度为第一亮度，确定指纹光斑的亮度为第一光斑亮度，以及确定上述指纹光斑的曝光时长为第一时长；响应于确定终端设备100当前所处环境的亮度为第二亮度，确定指纹光斑的亮度为第二光斑亮度，以及确定上述指纹光斑的曝光时长为第二时长。 Step 603, in response to determining that the brightness of the environment where the terminal device 100 is currently located is the first brightness, determining that the brightness of the fingerprint spot is the first spot brightness, and determining that the exposure duration of the fingerprint spot is the first duration; in response to determining that the terminal device 100 The brightness of the current environment is the second brightness, the brightness of the fingerprint light spot is determined as the second light spot brightness, and the exposure duration of the fingerprint light spot is determined as the second duration.
其中，第一光斑亮度不同于第二光斑亮度，第一时长不同于第二时长。Wherein, the brightness of the first light spot is different from the brightness of the second light spot, and the first duration is different from the second duration.
具体地，当第一亮度小于第二亮度时，第一光斑亮度小于或等于第二光斑亮度，第一时长大于或等于第二时长。Specifically, when the first brightness is less than the second brightness, the first spot brightness is less than or equal to the second spot brightness, and the first duration is greater than or equal to the second duration.
指纹光斑的亮度和上述指纹光斑的曝光时长的具体参数可以按照以上限定条件，根据需求进行配置，但曝光时长不宜过长，因为曝光时长过长会影响解锁时间，进而影响用户的流畅性体验，一般来说，曝光时长的取值范围为10～200ms，指纹光斑的亮度的取值范围为100～1500nit。The specific parameters of the brightness of the fingerprint light spot and the exposure time of the fingerprint light spot can be configured according to the above conditions and needs, but the exposure time should not be too long, because the exposure time is too long, it will affect the unlocking time, and then affect the user's smooth experience. Generally speaking, the value range of the exposure duration is 10-200ms, and the value range of the brightness of the fingerprint spot is 100-1500nit.
举例来说，根据终端设备100当前所处环境的亮度，将终端设备100当前所处环境的亮度划分为以下4个级别：For example, according to the brightness of the environment where the terminal device 100 is currently located, the brightness of the environment where the terminal device 100 is currently located is divided into the following four levels:
1)B1黑暗：照度L<10lux；1) B1 dark: illuminance L<10lux;
2)B2昏暗：照度10≤L<100lux；2) B2 dim: illuminance 10≤L<100lux;
3)B3正常：照度100≤L<10000lux；3) B3 is normal: illuminance 100≤L<10000lux;
4)B4强光：照度L>10000lux。4) B4 strong light: illuminance L>10000lux.
如果环境的亮度级别为B1，例如：环境照度为L<10lux，此时为了改善用户在黑暗环境使用屏下光学指纹的刺眼问题，可以确定指纹光斑的亮度为L1，对应的曝光时长为t1，其中，L1的取值范围可以为200～400nit，曝光时长t1的取值范围可以为100～200ms；If the brightness level of the environment is B1, for example, the ambient illuminance is L<10lux, in order to improve the glare problem of the user using the optical fingerprint under the screen in the dark environment, the brightness of the fingerprint spot can be determined to be L1, and the corresponding exposure time is t1. Among them, the value range of L1 can be 200～400nit, and the value range of exposure duration t1 can be 100～200ms;
如果环境的亮度级别为B2，例如：环境照度为10≤L<100lux，此时为了改善用户在昏暗环境使用屏下光学指纹的刺眼问题，可以确定指纹光斑的亮度为L2，对应的曝光时长为t2，其中，L2的取值范围可以为400～600nit，曝光时长t2的取值范围可以为50～100ms；If the brightness level of the environment is B2, for example, the ambient illuminance is 10≤L<100lux, in order to improve the glare problem of the user using the optical fingerprint under the screen in the dark environment, the brightness of the fingerprint spot can be determined to be L2, and the corresponding exposure time is t2, where the value range of L2 can be 400-600nit, and the value range of the exposure duration t2 can be 50-100ms;
如果环境的亮度级别为B3，例如：环境照度为100≤L<10000lux，此时终端设备100当前所处的环境亮度为正常亮度，因此可以确定指纹光斑的亮度为正常设定值L3，对应的曝光时长为正常设定值t3，其中，L3的取值范围可以为600～1000nit，曝光时长t2可以为20～80ms；If the brightness level of the environment is B3, for example, the ambient illuminance is 100≤L<10000lux, then the current environment brightness of the terminal device 100 is normal brightness, so it can be determined that the brightness of the fingerprint spot is the normal set value L3, and the corresponding The exposure duration is the normal set value t3, where the value range of L3 can be 600-1000nit, and the exposure duration t2 can be 20-80ms;
如果环境的亮度级别为B4，例如：环境照度为L>10000lux，此时终端设备100当前所处的环境为强光干扰的环境，为减少外界环境的干扰，可以确定指纹光斑的亮度为L4，对应的曝光时长为正常设定值t4，其中，L4的取值范围可以为600nit以上，曝光时长t2的取值范围可以为5-50ms。If the brightness level of the environment is B4, for example, the environmental illumination is L>10000lux, the current environment where the terminal device 100 is located is an environment with strong light interference. In order to reduce the interference of the external environment, the brightness of the fingerprint spot can be determined to be L4. The corresponding exposure duration is the normal set value t4, wherein the value range of L4 may be more than 600nit, and the value range of the exposure duration t2 may be 5-50ms.
步骤604，在曝光时长结束之后，获得指纹图像传感器180H采集的用户手指的指纹图像。 Step 604, after the exposure time period ends, obtain the fingerprint image of the user's finger collected by the fingerprint image sensor 180H.
本实施例中，获得指纹图像传感器180H采集的用户手指的指纹图像之前，当手指的按压操作以及指纹的按压区域满足指纹采图的触发条件时，终端设备100中的处理器110可以向指纹图像传感器180H发送采图通知，以指示指纹图像传感器180H采集用户手指的指纹图像。In this embodiment, before the fingerprint image of the user's finger collected by the fingerprint image sensor 180H is obtained, when the pressing operation of the finger and the pressing area of the fingerprint satisfy the triggering conditions for fingerprinting, the processor 110 in the terminal device 100 can send the fingerprint image to the fingerprint image. The sensor 180H sends an image capture notification to instruct the fingerprint image sensor 180H to capture the fingerprint image of the user's finger.
具体地，指纹图像传感器180H在采集指纹图像时，可以根据需求采集一张或者多张指纹图像，本实施例对此不作限定。Specifically, when collecting fingerprint images, the fingerprint image sensor 180H may collect one or more fingerprint images as required, which is not limited in this embodiment.
步骤605，对上述指纹图像进行匹配识别。 Step 605 , perform matching and identification on the above fingerprint image.
本实施例提供的屏幕亮度的调整方法，终端设备100通过环境光传感器180L获取终端设备100当前所处环境的亮度，根据该亮度确定指纹光斑的亮度和上述指纹光斑的曝光时长。针对屏下光学指纹的使用，在不影响屏下光学指纹的解锁性能的前提下，通过调整不同亮度下指纹光斑的亮度和对应的曝光时长，有效改善了目前屏下光学指纹在昏暗环境中光斑刺眼的问题。In the method for adjusting screen brightness provided in this embodiment, the terminal device 100 obtains the brightness of the current environment where the terminal device 100 is located through the ambient light sensor 180L, and determines the brightness of the fingerprint spot and the exposure duration of the fingerprint spot according to the brightness. For the use of under-screen optical fingerprints, without affecting the unlocking performance of under-screen optical fingerprints, by adjusting the brightness of the fingerprint spot and the corresponding exposure time under different brightness, the current spot of under-screen optical fingerprints in dark environments is effectively improved. dazzling question.
对于常规的指纹图像传感器，每个感光功能单元的灵敏度都保持一致，如图7所示，图7为常规指纹图像传感器的像素分布示意图。For a conventional fingerprint image sensor, the sensitivity of each photosensitive functional unit remains the same, as shown in FIG. 7 , which is a schematic diagram of the pixel distribution of the conventional fingerprint image sensor.
为保证不同场景下获取相同质量的指纹图像，本申请实施例还可以在指纹图像传感器180H像素硬件设计中，设计不同灵敏度的感光单元。具体地，可以通过调整不同像素的有效感光面积，调整不同像素在相同曝光时长内获取的光信号量，而器件的响应率则可以通过不同的半导体材料(例如：硅基或氧化物半导体等)或者掺杂工艺等来实现。In order to ensure that fingerprint images of the same quality are obtained in different scenarios, the embodiments of the present application may also design photosensitive units with different sensitivities in the hardware design of the 180H pixel of the fingerprint image sensor. Specifically, the amount of light signal obtained by different pixels within the same exposure time can be adjusted by adjusting the effective photosensitive area of different pixels, and the responsivity of the device can be determined by different semiconductor materials (for example: silicon-based or oxide semiconductor, etc.) Or doping process, etc. to achieve.
图8为本申请一个实施例提供的不同灵敏度像素的拼接示意图，如图8所示，不同灵敏度像素拼接设计A、B和C。其中，像素A可以为正常灵敏度(像素尺寸50-100um)，抗饱和能力正常(例如：光电转换饱和电子数5-10W)；像素B可以为中灵敏度(像素尺寸20-50um)，抗饱和能力一般(例如：光电转换饱和电子数2-5W)；像素C可以为高灵敏度(像素尺寸1-20um)，抗饱和能力略差(例如：光电转换饱和电子数0.5-2W)；可根据需求选择2种或多种不同感光灵敏度的感光单元。选用高感光灵敏度像素类型，在降低屏幕亮度情况下可以在曝光时长相同的情况下获取相同的图像质量，选用抗饱和能力较高的像素单元可以在外界强光干扰的状态下保证指纹图像不过曝。FIG. 8 is a schematic diagram of splicing pixels with different sensitivities provided by an embodiment of the present application. As shown in FIG. 8 , the splicing designs A, B, and C of pixels with different sensitivities are shown in FIG. 8 . Among them, pixel A can be normal sensitivity (pixel size 50-100um), and the anti-saturation ability is normal (for example: photoelectric conversion saturation electron number 5-10W); pixel B can be medium sensitivity (pixel size 20-50um), anti-saturation ability General (for example: photoelectric conversion saturation electron number 2-5W); pixel C can be high sensitivity (pixel size 1-20um), slightly poor anti-saturation ability (for example: photoelectric conversion saturation electron number 0.5-2W); can be selected according to needs 2 or more photosensitive units with different photosensitive sensitivities. The use of high-sensitivity pixel types can obtain the same image quality with the same exposure time when the screen brightness is reduced. The selection of pixel units with high anti-saturation ability can ensure that the fingerprint image is not exposed in the state of external strong light interference. .
图9为本申请另一个实施例提供的屏幕亮度的调整方法的流程图，本实施例中，可以根据终端设备100所处环境选择不同灵敏度的硬件像素单元达到调整指纹光斑亮度的目的，既可以保证指纹图像的质量，又不会明显影响解锁时间。FIG. 9 is a flowchart of a method for adjusting screen brightness provided by another embodiment of the present application. In this embodiment, hardware pixel units with different sensitivities can be selected according to the environment where the terminal device 100 is located to achieve the purpose of adjusting the brightness of the fingerprint spot. Either The quality of the fingerprint image is guaranteed without significantly affecting the unlocking time.
如图9所示，上述屏幕亮度的调整方法的流程图可以包括：As shown in FIG. 9 , the flow chart of the above-mentioned method for adjusting screen brightness may include:
步骤901，终端设备100检测到用户手指对终端设备100的显示屏194的按压操作之后，确定上述手指的按压操作以及指纹的按压区域是否满足指纹采图的触发条件。 Step 901 , after the terminal device 100 detects the pressing operation of the user's finger on the display screen 194 of the terminal device 100 , it determines whether the pressing operation of the finger and the pressing area of the fingerprint meet the triggering conditions for fingerprint capture.
具体地，终端设备100可以通过处理器110，以及压力传感器180A和/或触摸传感器180K检测用户手指对显示屏194的按压操作，进而确定上述手指的按压操作以及指纹的按压区域是否满足指纹采图的触发条件。Specifically, the terminal device 100 can detect the pressing operation of the user's finger on the display screen 194 through the processor 110 and the pressure sensor 180A and/or the touch sensor 180K, and then determine whether the above-mentioned pressing operation of the finger and the pressing area of the fingerprint satisfy the fingerprint acquisition requirements. trigger condition.
步骤902，如果满足，则获取终端设备100当前所处环境的亮度。 Step 902, if satisfied, obtain the brightness of the environment where the terminal device 100 is currently located.
具体地，上述手指的按压操作以及指纹的按压区域满足指纹采图的触发条件可以包括：手指的按压位置与指纹光斑的位置匹配，并且上述指纹的按压区域的面积与上述指纹光斑的面积的比值大于或等于预定阈值。Specifically, the above-mentioned pressing operation of the finger and the pressing area of the fingerprint meeting the triggering conditions for fingerprint capture may include: the pressing position of the finger matches the position of the fingerprint spot, and the ratio of the area of the pressing area of the fingerprint to the area of the fingerprint spot greater than or equal to a predetermined threshold.
其中，上述预定阈值可以在具体实现时，根据***性能和/或实现需求等自行设定，本实施例对上述预定阈值的大小不作限定，举例来说，上述预定阈值可以为50％。The above-mentioned predetermined threshold may be set by itself during specific implementation according to system performance and/or implementation requirements, and this embodiment does not limit the size of the above-mentioned predetermined threshold. For example, the above-mentioned predetermined threshold may be 50%.
具体地，终端设备100中的处理器110获取指纹采图通知之后，可以从环境光传感器180L获取终端设备100当前所处环境的亮度。Specifically, after the processor 110 in the terminal device 100 obtains the fingerprint capture notification, it can obtain the brightness of the environment where the terminal device 100 is currently located from the ambient light sensor 180L.
步骤903，根据终端设备100当前所处环境的亮度，确定指纹光斑的亮度；以及选用与上述亮度对应的图像传感单元阵列，确定上述图像传感单元阵列对应硬件单元的光电转换效率、像素的有效收光面积和曝光时长。Step 903: Determine the brightness of the fingerprint light spot according to the brightness of the current environment of the terminal device 100; Effective light-receiving area and exposure time.
具体地，根据终端设备100当前所处环境的亮度，确定指纹光斑的亮度；以及选用与上述亮度对应的图像传感单元阵列，确定上述图像传感单元阵列对应硬件单元的光电转换效率、像素的有效收光面积和曝光时长可以为：Specifically, the brightness of the fingerprint spot is determined according to the brightness of the environment where the terminal device 100 is currently located; and the image sensing unit array corresponding to the above-mentioned brightness is selected to determine the photoelectric conversion efficiency of the hardware unit corresponding to the above-mentioned image sensing unit array, the pixel's The effective light-receiving area and exposure time can be:
响应于确定终端设备100当前所处环境的亮度为第一亮度，确定指纹光斑的亮度为第一光斑亮度，以及确定与第一亮度对应的图像传感单元阵列为第一图像传感单元阵列，确定第一图像传感单元阵列对应硬件单元的光电转换效率、像素的有效收光面积和曝光时长分别为第一光电转换效率、第一有效收光面积和第一时长；In response to determining that the brightness of the environment where the terminal device 100 is currently located is the first brightness, determining that the brightness of the fingerprint spot is the first spot brightness, and determining that the image sensing unit array corresponding to the first brightness is the first image sensing unit array, Determining that the photoelectric conversion efficiency of the hardware unit corresponding to the first image sensing unit array, the effective light-receiving area of the pixel, and the exposure duration are the first photoelectric conversion efficiency, the first effective light-receiving area, and the first duration, respectively;
响应于确定终端设备100当前所处环境的亮度为第二亮度，确定指纹光斑的亮度为第二光斑亮度，以及确定与第二亮度对应的图像传感单元阵列为第二图像传感单元阵列，确定第二图像传感单元阵列对应硬件单元的光电转换效率、像素的有效收光面积和曝光时长分别为第二光电转换效率、第二有效收光面积和第二时长；In response to determining that the brightness of the environment where the terminal device 100 is currently located is the second brightness, determining that the brightness of the fingerprint spot is the second spot brightness, and determining that the image sensing unit array corresponding to the second brightness is the second image sensing unit array, Determine the photoelectric conversion efficiency of the hardware unit corresponding to the second image sensing unit array, the effective light-receiving area of the pixel, and the exposure duration as the second photoelectric conversion efficiency, the second effective light-receiving area, and the second duration, respectively;
其中，第一光斑亮度不同于第二光斑亮度，第一光电转换效率不同于第二光电转换效率，第一有效收光面积不同于第二有效收光面积，第一时长不同于第二时长。The first light spot brightness is different from the second light spot brightness, the first photoelectric conversion efficiency is different from the second photoelectric conversion efficiency, the first effective light receiving area is different from the second effective light receiving area, and the first duration is different from the second duration.
当第一亮度小于第二亮度时，第一光斑亮度小于或等于第二光斑亮度，第一光电转换效率大于或等于第二光电转换效率，第一有效收光面积大于或等于第二有效收光面积，第一时长大于或等于第二时长。When the first brightness is less than the second brightness, the first spot brightness is less than or equal to the second spot brightness, the first photoelectric conversion efficiency is greater than or equal to the second photoelectric conversion efficiency, and the first effective light-receiving area is greater than or equal to the second effective light-receiving area Area, the first duration is greater than or equal to the second duration.
需要说明的是，为保证屏下光学指纹正常工作，指纹光斑的亮度L的取值范围一般为100～1500nit；曝光时长的取值范围一般为10～200ms。It should be noted that, in order to ensure the normal operation of the optical fingerprint under the screen, the value range of the brightness L of the fingerprint light spot is generally 100-1500nit; the value range of the exposure time is generally 10-200ms.
举例来说，可以将终端设备100当前所处环境的亮度划分为以下4个级别：For example, the brightness of the environment where the terminal device 100 is currently located can be divided into the following four levels:
1)B1黑暗：照度L<10lux；1) B1 dark: illuminance L<10lux;
2)B2昏暗：照度10≤L<100lux；2) B2 dim: illuminance 10≤L<100lux;
3)B3正常：照度100≤L<10000lux；3) B3 is normal: illuminance 100≤L<10000lux;
4)B4强光：照度L>10000lux。4) B4 strong light: illuminance L>10000lux.
如果环境的亮度级别为B1，例如：环境照度为L<10lux，此时为了改善用户在黑暗环境使用屏下光学指纹的刺眼问题，可以确定指纹光斑的亮度为L1，选用高灵敏度的图像传感单元阵列进行采图，图像传感单元阵列对应硬件单元的光电转换效率为Q1，像素的有效收光面积为A1，对应的曝光时长为t1；If the brightness level of the environment is B1, for example, the ambient illuminance is L<10lux, in order to improve the glare problem of the user using the optical fingerprint under the screen in the dark environment, the brightness of the fingerprint spot can be determined to be L1, and a high-sensitivity image sensor is selected. The unit array is used for image capturing, the photoelectric conversion efficiency of the hardware unit corresponding to the image sensing unit array is Q1, the effective light-receiving area of the pixel is A1, and the corresponding exposure time is t1;
如果环境的亮度级别为B2，例如：环境照度为10≤L<100lux，此时为了改善用户在昏暗环境使用屏下光学指纹的刺眼问题，可以确定指纹光斑的亮度为L2，选用中高灵敏度的图像传感单元阵列进行采图，图像传感单元阵列对应硬件单元的光电转换效率为Q2，像素的有效收光面积为A2，对应的曝光时长为t2；If the brightness level of the environment is B2, for example, the ambient illumination is 10≤L<100lux, in order to improve the glare problem of the user using the optical fingerprint under the screen in the dark environment, the brightness of the fingerprint spot can be determined as L2, and the image with medium and high sensitivity is selected. The sensing unit array is used for image acquisition. The photoelectric conversion efficiency of the hardware unit corresponding to the image sensing unit array is Q2, the effective light-receiving area of the pixel is A2, and the corresponding exposure time is t2;
如果环境的亮度级别为B3，例如：环境照度为100≤L<10000lux，此时终端设备100当前所处的环境亮度为正常亮度，可以确定指纹光斑的亮度为L3，选用正常 灵敏度的图像传感单元阵列进行采图，图像传感单元阵列对应硬件单元的光电转换效率为Q3，像素的有效收光面积为A3，对应的曝光时长为t3；If the brightness level of the environment is B3, for example, the ambient illuminance is 100≤L<10000lux, and the current environment brightness of the terminal device 100 is normal brightness, it can be determined that the brightness of the fingerprint spot is L3, and an image sensor with normal sensitivity is selected. The unit array is used for image capturing, the photoelectric conversion efficiency of the hardware unit corresponding to the image sensing unit array is Q3, the effective light-receiving area of the pixel is A3, and the corresponding exposure time is t3;
如果环境的亮度级别为B4，例如：环境照度为L>10000lux，此时终端设备100当前所处的环境为强光干扰的环境，为减少外界环境的干扰，可以确定指纹光斑的亮度为L4，选用正常灵敏度的图像传感单元阵列进行采图，图像传感单元阵列对应硬件单元的光电转换效率为Q4，像素的有效收光面积为A4，对应的曝光时长为t4。If the brightness level of the environment is B4, for example, the environmental illumination is L>10000lux, the current environment where the terminal device 100 is located is an environment with strong light interference. In order to reduce the interference of the external environment, the brightness of the fingerprint spot can be determined to be L4. The image sensing unit array with normal sensitivity is used for image acquisition. The photoelectric conversion efficiency of the hardware unit corresponding to the image sensing unit array is Q4, the effective light-receiving area of the pixel is A4, and the corresponding exposure time is t4.
为缓解不同环境下的刺眼问题，不同环境下，指纹光斑的亮度的取值L1≤L2≤L3≤L4，对应的曝光时长的取值t4≤t3≤t2≤t1，光电转换效率的取值Q4≤Q3≤Q2≤Q1，有效收光面积的取值A4≤A3≤A2≤A1。In order to alleviate the glare problem in different environments, in different environments, the value of the brightness of the fingerprint spot is L1≤L2≤L3≤L4, the value of the corresponding exposure time is t4≤t3≤t2≤t1, and the value of the photoelectric conversion efficiency is Q4. ≤Q3≤Q2≤Q1, the value of the effective light-receiving area A4≤A3≤A2≤A1.
步骤904，在上述曝光时长结束之后，获得指纹图像传感器180H采集的用户手指的指纹图像；其中，上述指纹图像是指纹图像传感器180H通过与上述亮度对应的图像传感单元阵列采集的。 Step 904 , after the exposure period ends, obtain a fingerprint image of the user's finger collected by the fingerprint image sensor 180H; wherein the fingerprint image is collected by the fingerprint image sensor 180H through an image sensing unit array corresponding to the brightness.
进一步地，获得指纹图像传感器采集的用户手指的指纹图像之前，如果上述手指的按压操作以及指纹的按压区域满足指纹采图的触发条件，则向指纹图像传感器发送采图通知，以指示指纹图像传感器采集上述用户手指的指纹图像。Further, before obtaining the fingerprint image of the user's finger collected by the fingerprint image sensor, if the above-mentioned pressing operation of the finger and the pressing area of the fingerprint satisfy the triggering conditions for fingerprint sampling, a picture sampling notification is sent to the fingerprint image sensor to indicate the fingerprint image sensor. The fingerprint image of the above-mentioned user's finger is collected.
具体地，指纹图像传感器180H在采集指纹图像时，可以根据需求采集一张或者多张指纹图像，本实施例对此不作限定。Specifically, when collecting fingerprint images, the fingerprint image sensor 180H may collect one or more fingerprint images as required, which is not limited in this embodiment.
步骤905，对上述指纹图像进行匹配识别。 Step 905 , perform matching and identification on the above fingerprint image.
本实施例提供的屏幕亮度的调整方法，终端设备100通过环境光传感器180L获取终端设备100当前所处环境的亮度，根据该亮度确定指纹光斑的亮度；以及选用与上述亮度对应的图像传感单元阵列，确定上述图像传感单元阵列对应硬件单元的光电转换效率、像素的有效收光面积和曝光时长。针对屏下光学指纹的使用，在不影响屏下光学指纹的解锁性能的前提下，在不同的亮度级别下，指纹图像传感器180H选用不同灵敏度的图像传感单元阵列采集指纹图像，有效改善了目前屏下光学指纹在昏暗环境中光斑刺眼的问题。In the method for adjusting screen brightness provided in this embodiment, the terminal device 100 obtains the brightness of the environment where the terminal device 100 is currently located through the ambient light sensor 180L, determines the brightness of the fingerprint spot according to the brightness; and selects an image sensing unit corresponding to the above brightness Array, and determine the photoelectric conversion efficiency of the hardware unit corresponding to the image sensing unit array, the effective light-receiving area of the pixel, and the exposure time. For the use of under-screen optical fingerprints, under the premise of not affecting the unlocking performance of under-screen optical fingerprints, under different brightness levels, the fingerprint image sensor 180H selects image sensing unit arrays with different sensitivities to collect fingerprint images, effectively improving the current situation. The problem that the optical fingerprints under the screen are dazzling in the dark environment.
可以理解的是，上述实施例中的部分或全部步骤或操作仅是示例，本申请实施例还可以执行其它操作或者各种操作的变形。此外，各个步骤可以按照上述实施例呈现的不同的顺序来执行，并且有可能并非要执行上述实施例中的全部操作。It can be understood that, some or all of the steps or operations in the foregoing embodiments are only examples, and other operations or variations of various operations may also be performed in the embodiments of the present application. Furthermore, the various steps may be performed in a different order presented in the above-described embodiments, and may not perform all operations in the above-described embodiments.
可以理解的是，终端设备为了实现上述功能，其包含了执行各个功能相应的硬件和/或软件模块。结合本申请所公开的实施例描述的各示例的算法步骤，本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。本领域技术人员可以结合实施例对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。It can be understood that, in order to realize the above-mentioned functions, the terminal device includes corresponding hardware and/or software modules for executing each function. The algorithm steps of each example described in conjunction with the embodiments disclosed in this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functionality for each particular application in conjunction with the embodiments, but such implementations should not be considered beyond the scope of this application.
本实施例可以根据上述方法实施例对终端设备进行功能模块的划分，例如，可以对应各个功能划分各个功能模块，也可以将两个或两个以上的功能集成在一个模块中。上述集成的模块可以采用硬件的形式实现。需要说明的是，本实施例中对模块的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方 式。In this embodiment, the terminal device may be divided into functional modules according to the foregoing method embodiments. For example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one module. The above-mentioned integrated modules can be implemented in the form of hardware. It should be noted that the division of modules in this embodiment is schematic, and is only a logical function division, and other division methods may be used in actual implementation.
图10为本申请另一个实施例提供的终端设备的结构示意图，在采用对应各个功能划分各个功能模块的情况下，图10示出了上述实施例中涉及的终端设备1000的一种可能的组成示意图，如图10所示，该终端设备1000可以包括：接收单元1001、处理单元1002和发送单元1003；FIG. 10 is a schematic structural diagram of a terminal device according to another embodiment of the present application. In the case where each function module is divided according to each function, FIG. 10 shows a possible composition of the terminal device 1000 involved in the above embodiment. In a schematic diagram, as shown in FIG. 10 , the terminal device 1000 may include: a receiving unit 1001, a processing unit 1002 and a sending unit 1003;
其中，接收单元1001可以用于支持终端设备1000执行本申请实施例所描述的技术方案的其他过程；The receiving unit 1001 may be configured to support the terminal device 1000 to perform other processes of the technical solutions described in the embodiments of this application;
处理单元1002可以用于支持终端设备1000执行步骤601～步骤605，以及步骤901～步骤905等，和/或用于本申请实施例所描述的技术方案的其他过程；The processing unit 1002 may be configured to support the terminal device 1000 to perform steps 601 to 605, and steps 901 to 905, etc., and/or other processes for the technical solutions described in the embodiments of this application;
发送单元1003可以用于支持终端设备1000执行本申请实施例所描述的技术方案的其他过程。The sending unit 1003 may be configured to support the terminal device 1000 to perform other processes of the technical solutions described in the embodiments of this application.
需要说明的是，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述，在此不再赘述。It should be noted that, all relevant contents of the steps involved in the above method embodiments can be cited in the functional description of the corresponding functional module, which will not be repeated here.
本实施例提供的终端设备1000，用于执行上述屏幕亮度的调整方法，因此可以达到与上述方法相同的效果。The terminal device 1000 provided in this embodiment is used to execute the above method for adjusting the screen brightness, so the same effect as the above method can be achieved.
应当理解的是，终端设备1000可以对应于图1所示的终端设备100。其中，接收单元1001和发送单元1003的功能可以由图1所示的终端设备100中处理器110、天线1和移动通信模块100，和/或，由处理器110、天线2和无线通信模块160实现；处理单元1002的功能可以由图1所示的终端设备100中的处理器110、环境光传感器180L、指纹图像传感器180H、压力传感器180A和触摸传感器180K实现。It should be understood that the terminal device 1000 may correspond to the terminal device 100 shown in FIG. 1 . The functions of the receiving unit 1001 and the sending unit 1003 may be determined by the processor 110 , the antenna 1 and the mobile communication module 100 in the terminal device 100 shown in FIG. 1 , and/or by the processor 110 , the antenna 2 and the wireless communication module 160 Implementation; the functions of the processing unit 1002 may be implemented by the processor 110 , the ambient light sensor 180L, the fingerprint image sensor 180H, the pressure sensor 180A and the touch sensor 180K in the terminal device 100 shown in FIG. 1 .
在采用集成的单元的情况下，终端设备1000可以包括处理模块、存储模块和通信模块。In the case of using an integrated unit, the terminal device 1000 may include a processing module, a storage module, and a communication module.
其中，处理模块可以用于对终端设备1000的动作进行控制管理，例如，可以用于支持终端设备1000执行上述接收单元1001、处理单元1002和发送单元1003执行的步骤。存储模块可以用于支持终端设备1000存储程序代码和数据等。通信模块，可以用于支持终端设备1000与其他设备的通信。The processing module may be used to control and manage the actions of the terminal device 1000, for example, may be used to support the terminal device 1000 to perform the steps performed by the receiving unit 1001, the processing unit 1002 and the sending unit 1003. The storage module may be used to support the terminal device 1000 to store program codes, data, and the like. The communication module can be used to support the communication between the terminal device 1000 and other devices.
其中，处理模块可以是处理器或控制器，其可以实现或执行结合本申请公开内容所描述的各种示例性的逻辑方框、模块和电路。处理器也可以是实现计算功能的组合，例如包含一个或多个微处理器组合，数字信号处理(digital signal processing，DSP)和微处理器的组合等等。存储模块可以是存储器。通信模块具体可以为射频电路、蓝牙芯片和/或Wi-Fi芯片等与其他电子设备交互的设备。Among other things, a processing module may be a processor or controller, which may implement or execute the various exemplary logical blocks, modules, and circuits described in connection with the present disclosure. The processor may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of digital signal processing (DSP) and a microprocessor, and the like. The storage module may be a memory. The communication module may specifically be a device that interacts with other electronic devices, such as a radio frequency circuit, a Bluetooth chip, and/or a Wi-Fi chip.
在一个实施例中，当处理模块为处理器，存储模块为存储器时，本实施例所涉及的终端设备1000可以为具有图3所示结构的设备。In one embodiment, when the processing module is a processor and the storage module is a memory, the terminal device 1000 involved in this embodiment may be a device having the structure shown in FIG. 3 .
本申请实施例还提供一种计算机可读存储介质，该计算机可读存储介质中存储有计算机程序，当其在计算机上运行时，使得计算机执行本申请图5～图9所示实施例提供的方法。Embodiments of the present application further provide a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when it runs on a computer, the computer causes the computer to execute the programs provided by the embodiments shown in FIGS. 5 to 9 of the present application. method.
本申请实施例还提供一种计算机程序产品，该计算机程序产品包括计算机程序，当其在计算机上运行时，使得计算机执行本申请图5～图9所示实施例提供的方法。An embodiment of the present application further provides a computer program product, the computer program product includes a computer program, which, when run on a computer, enables the computer to execute the methods provided by the embodiments shown in FIGS. 5 to 9 of the present application.
本申请实施例中，“至少一个”是指一个或者多个，“多个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示单独存在A、同时存在A和B、单独存在B的情况。其中A，B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项”及其类似表达，是指的这些项中的任意组合，包括单项或复数项的任意组合。例如，a，b和c中的至少一项可以表示：a，b，c，a和b，a和c，b和c或a和b和c，其中a，b，c可以是单个，也可以是多个。In the embodiments of the present application, "at least one" refers to one or more, and "multiple" refers to two or more. "And/or", which describes the association relationship of the associated objects, means that there can be three kinds of relationships, for example, A and/or B, which can indicate the existence of A alone, the existence of A and B at the same time, and the existence of B alone. where A and B can be singular or plural. The character "/" generally indicates that the associated objects are an "or" relationship. "At least one of the following" and similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, and c may represent: a, b, c, a and b, a and c, b and c or a and b and c, where a, b, c may be single, or Can be multiple.
本领域普通技术人员可以意识到，本文中公开的实施例中描述的各单元及算法步骤，能够以电子硬件、计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。Those of ordinary skill in the art can realize that the units and algorithm steps described in the embodiments disclosed herein can be implemented by a combination of electronic hardware, computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的***、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.
在本申请所提供的几个实施例中，任一功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(read-only memory，ROM)、随机存取存储器(random access memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。In the several embodiments provided in this application, if any function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk and other media that can store program codes .
以上所述，仅为本申请的具体实施方式，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。本申请的保护范围应以所述权利要求的保护范围为准。The above are only specific embodiments of the present application. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be covered by the protection scope of the present application. The protection scope of the present application shall be subject to the protection scope of the claims.

Claims (23)

  1. 一种屏下光学指纹的采集方法，其特征在于，包括：A method for collecting under-screen optical fingerprints, comprising:
    终端设备检测到用户手指对所述终端设备的显示屏的按压操作之后，确定所述手指的按压操作以及指纹的按压区域是否满足指纹采图的触发条件；After the terminal device detects the pressing operation of the user's finger on the display screen of the terminal device, it is determined whether the pressing operation of the finger and the pressing area of the fingerprint meet the triggering conditions for fingerprint acquisition;
    如果满足，则获取所述终端设备当前所处环境的亮度；If satisfied, obtain the brightness of the environment where the terminal device is currently located;
    响应于确定所述终端设备当前所处环境的亮度为第一亮度，确定指纹光斑的亮度为第一光斑亮度，以及确定所述指纹光斑的曝光时长为第一时长；In response to determining that the brightness of the environment in which the terminal device is currently located is the first brightness, determining that the brightness of the fingerprint spot is the first spot brightness, and determining that the exposure duration of the fingerprint spot is the first duration;
    响应于确定所述终端设备当前所处环境的亮度为第二亮度，确定指纹光斑的亮度为第二光斑亮度，以及确定所述指纹光斑的曝光时长为第二时长；In response to determining that the brightness of the environment where the terminal device is currently located is the second brightness, determining that the brightness of the fingerprint spot is the second spot brightness, and determining that the exposure duration of the fingerprint spot is the second duration;
    其中，所述第一光斑亮度不同于所述第二光斑亮度，所述第一时长不同于所述第二时长；Wherein, the brightness of the first light spot is different from the brightness of the second light spot, and the first duration is different from the second duration;
    在所述曝光时长结束之后，获得指纹图像传感器采集的所述用户手指的指纹图像；After the exposure duration ends, obtain the fingerprint image of the user's finger collected by the fingerprint image sensor;
    对所述指纹图像进行匹配识别。The fingerprint image is matched and identified.
  2. 根据权利要求1所述的方法，其特征在于，所述手指的按压操作以及指纹的按压区域满足指纹采图的触发条件包括：所述手指的按压位置与指纹光斑的位置匹配，并且所述指纹的按压区域的面积与所述指纹光斑的面积的比值大于或等于预定阈值。The method according to claim 1, wherein the pressing operation of the finger and the pressing area of the fingerprint to satisfy the trigger condition for fingerprint acquisition comprises: the pressing position of the finger matches the position of the fingerprint spot, and the fingerprint The ratio of the area of the pressed area to the area of the fingerprint light spot is greater than or equal to a predetermined threshold.
  3. 根据权利要求1所述的方法，其特征在于，The method of claim 1, wherein:
    当所述第一亮度小于第二亮度时，所述第一光斑亮度小于或等于所述第二光斑亮度，所述第一时长大于或等于所述第二时长。When the first brightness is less than the second brightness, the first light spot brightness is less than or equal to the second light spot brightness, and the first duration is greater than or equal to the second duration.
  4. 根据权利要求1-3任意一项所述的方法，其特征在于，所述获得指纹图像传感器采集的所述用户手指的指纹图像之前，还包括：The method according to any one of claims 1-3, wherein before the obtaining the fingerprint image of the user's finger collected by the fingerprint image sensor, the method further comprises:
    如果所述手指的按压操作以及指纹的按压区域满足指纹采图的触发条件，则向所述指纹图像传感器发送采图通知，以指示所述指纹图像传感器采集所述用户手指的指纹图像。If the pressing operation of the finger and the pressing area of the fingerprint satisfy the trigger condition for fingerprint capture, a capture notification is sent to the fingerprint image sensor to instruct the fingerprint image sensor to capture the fingerprint image of the user's finger.
  5. 一种屏下光学指纹的采集方法，其特征在于，包括：A method for collecting under-screen optical fingerprints, comprising:
    终端设备检测到用户手指对所述终端设备的显示屏的按压操作之后，确定所述手指的按压操作以及指纹的按压区域是否满足指纹采图的触发条件；After the terminal device detects the pressing operation of the user's finger on the display screen of the terminal device, it is determined whether the pressing operation of the finger and the pressing area of the fingerprint meet the triggering conditions for fingerprint acquisition;
    如果满足，则获取所述终端设备当前所处环境的亮度；If satisfied, obtain the brightness of the environment where the terminal device is currently located;
    根据所述终端设备当前所处环境的亮度，确定指纹光斑的亮度；以及选用与所述亮度对应的图像传感单元阵列，确定所述图像传感单元阵列对应硬件单元的光电转换效率、像素的有效收光面积和曝光时长；Determine the brightness of the fingerprint light spot according to the brightness of the environment where the terminal device is currently located; and select an image sensing unit array corresponding to the brightness to determine the photoelectric conversion efficiency of the hardware unit corresponding to the image sensing unit array, the pixel density Effective light-receiving area and exposure time;
    在所述曝光时长结束之后，获得指纹图像传感器采集的所述用户手指的指纹图像；其中，所述指纹图像是所述指纹图像传感器通过与所述亮度对应的图像传感单元阵列采集的；After the exposure duration ends, a fingerprint image of the user's finger collected by a fingerprint image sensor is obtained; wherein, the fingerprint image is collected by the fingerprint image sensor through an image sensing unit array corresponding to the brightness;
    对所述指纹图像进行匹配识别。The fingerprint image is matched and identified.
  6. 根据权利要求5所述的方法，其特征在于，所述手指的按压操作以及指纹的 按压区域满足指纹采图的触发条件包括：所述手指的按压位置与指纹光斑的位置匹配，并且所述指纹的按压区域的面积与所述指纹光斑的面积的比值大于或等于预定阈值。The method according to claim 5, wherein the pressing operation of the finger and the pressing area of the fingerprint to satisfy the triggering condition for fingerprint acquisition comprises: the pressing position of the finger matches the position of the fingerprint spot, and the fingerprint The ratio of the area of the pressed area to the area of the fingerprint light spot is greater than or equal to a predetermined threshold.
  7. 根据权利要求5或6所述的方法，其特征在于，所述根据所述终端设备当前所处环境的亮度，确定指纹光斑的亮度；以及选用与所述亮度对应的图像传感单元阵列，确定所述图像传感单元阵列对应硬件单元的光电转换效率、像素的有效收光面积和曝光时长包括：The method according to claim 5 or 6, wherein the brightness of the fingerprint spot is determined according to the brightness of the environment where the terminal device is currently located; and an image sensing unit array corresponding to the brightness is selected to determine The photoelectric conversion efficiency of the hardware unit corresponding to the image sensing unit array, the effective light-receiving area of the pixel and the exposure duration include:
    响应于确定所述终端设备当前所处环境的亮度为第一亮度，确定指纹光斑的亮度为第一光斑亮度，以及确定与所述第一亮度对应的图像传感单元阵列为第一图像传感单元阵列，确定第一图像传感单元阵列对应硬件单元的光电转换效率、像素的有效收光面积和曝光时长分别为第一光电转换效率、第一有效收光面积和第一时长；In response to determining that the brightness of the environment in which the terminal device is currently located is the first brightness, determining the brightness of the fingerprint spot as the first spot brightness, and determining that the image sensing unit array corresponding to the first brightness is the first image sensor a unit array, determining the photoelectric conversion efficiency of the hardware unit corresponding to the first image sensing unit array, the effective light-receiving area and the exposure duration of the pixels as the first photoelectric conversion efficiency, the first effective light-receiving area and the first duration, respectively;
    响应于确定所述终端设备当前所处环境的亮度为第二亮度，确定指纹光斑的亮度为第二光斑亮度，以及确定与所述第二亮度对应的图像传感单元阵列为第二图像传感单元阵列，确定第二图像传感单元阵列对应硬件单元的光电转换效率、像素的有效收光面积和曝光时长分别为第二光电转换效率、第二有效收光面积和第二时长；In response to determining that the brightness of the environment where the terminal device is currently located is the second brightness, determining the brightness of the fingerprint spot as the second spot brightness, and determining that the image sensing unit array corresponding to the second brightness is the second image sensor a unit array, determining that the photoelectric conversion efficiency of the hardware unit corresponding to the second image sensing unit array, the effective light-receiving area and the exposure duration of the pixels are respectively the second photoelectric conversion efficiency, the second effective light-receiving area and the second duration;
    其中，第一光斑亮度不同于第二光斑亮度，第一光电转换效率不同于第二光电转换效率，第一有效收光面积不同于第二有效收光面积，第一时长不同于第二时长。The first light spot brightness is different from the second light spot brightness, the first photoelectric conversion efficiency is different from the second photoelectric conversion efficiency, the first effective light receiving area is different from the second effective light receiving area, and the first duration is different from the second duration.
  8. 根据权利要求7所述的方法，其特征在于，The method of claim 7, wherein:
    当第一亮度小于第二亮度时，所述第一光斑亮度小于或等于所述第二光斑亮度，所述第一光电转换效率大于或等于所述第二光电转换效率，所述第一有效收光面积大于或等于所述第二有效收光面积，所述第一时长大于或等于所述第二时长。When the first brightness is less than the second brightness, the first spot brightness is less than or equal to the second spot brightness, the first photoelectric conversion efficiency is greater than or equal to the second photoelectric conversion efficiency, and the first effective The light area is greater than or equal to the second effective light receiving area, and the first duration is greater than or equal to the second duration.
  9. 根据权利要求5所述的方法，其特征在于，所述获得指纹图像传感器采集的所述用户手指的指纹图像之前，还包括：The method according to claim 5, wherein before obtaining the fingerprint image of the user's finger collected by the fingerprint image sensor, the method further comprises:
    如果所述手指的按压操作以及指纹的按压区域满足指纹采图的触发条件，则向所述指纹图像传感器发送采图通知，以指示所述指纹图像传感器采集所述用户手指的指纹图像。If the pressing operation of the finger and the pressing area of the fingerprint satisfy the trigger condition for fingerprint capture, a capture notification is sent to the fingerprint image sensor to instruct the fingerprint image sensor to capture the fingerprint image of the user's finger.
  10. 一种屏下光学指纹的采集装置，其特征在于，用于执行如权利要求1至4任一所述的方法。A device for collecting under-screen optical fingerprints, characterized in that it is used to execute the method according to any one of claims 1 to 4.
  11. 一种屏下光学指纹的采集装置，其特征在于，用于执行如权利要求5至9任一所述的方法。A device for collecting under-screen optical fingerprints, characterized in that it is used to execute the method according to any one of claims 5 to 9.
  12. 一种终端设备，其特征在于，包括：A terminal device, characterized in that it includes:
    一个或多个处理器；存储器；多个应用程序；以及一个或多个计算机程序，其中所述一个或多个计算机程序被存储在所述存储器中，所述一个或多个计算机程序包括指令，当所述指令被所述终端设备执行时，使得所述终端设备执行以下步骤：one or more processors; a memory; a plurality of application programs; and one or more computer programs, wherein the one or more computer programs are stored in the memory, the one or more computer programs comprising instructions, When the instruction is executed by the terminal device, the terminal device is caused to perform the following steps:
    检测到用户手指对所述终端设备的显示屏的按压操作之后，确定所述手指的按压操作以及指纹的按压区域是否满足指纹采图的触发条件；After detecting the pressing operation of the user's finger on the display screen of the terminal device, determine whether the pressing operation of the finger and the pressing area of the fingerprint meet the triggering conditions for fingerprint capture;
    如果满足，则获取所述终端设备当前所处环境的亮度；If satisfied, obtain the brightness of the environment where the terminal device is currently located;
    响应于确定所述终端设备当前所处环境的亮度为第一亮度，确定指纹光斑的亮度为第一光斑亮度，以及确定所述指纹光斑的曝光时长为第一时长；In response to determining that the brightness of the environment in which the terminal device is currently located is the first brightness, determining that the brightness of the fingerprint spot is the first spot brightness, and determining that the exposure duration of the fingerprint spot is the first duration;
    响应于确定所述终端设备当前所处环境的亮度为第二亮度，确定指纹光斑的亮 度为第二光斑亮度，以及确定所述指纹光斑的曝光时长为第二时长；In response to determining that the brightness of the environment where the terminal device is currently located is the second brightness, determining that the brightness of the fingerprint spot is the second spot brightness, and determining that the exposure duration of the fingerprint spot is the second duration;
    其中，所述第一光斑亮度不同于所述第二光斑亮度，所述第一时长不同于所述第二时长；Wherein, the brightness of the first light spot is different from the brightness of the second light spot, and the first duration is different from the second duration;
    在所述曝光时长结束之后，获得指纹图像传感器采集的所述用户手指的指纹图像；After the exposure duration ends, obtain the fingerprint image of the user's finger collected by the fingerprint image sensor;
    对所述指纹图像进行匹配识别。The fingerprint image is matched and identified.
  13. 根据权利要求12所述的终端设备，其特征在于，所述手指的按压操作以及指纹的按压区域满足指纹采图的触发条件包括：所述手指的按压位置与指纹光斑的位置匹配，并且所述指纹的按压区域的面积与所述指纹光斑的面积的比值大于或等于预定阈值。The terminal device according to claim 12, wherein the pressing operation of the finger and the pressing area of the fingerprint to satisfy the trigger condition for fingerprint capture comprises: the pressing position of the finger matches the position of the fingerprint spot, and the The ratio of the area of the pressed area of the fingerprint to the area of the fingerprint light spot is greater than or equal to a predetermined threshold.
  14. 根据权利要求12所述的终端设备，其特征在于，当所述第一亮度小于第二亮度时，所述第一光斑亮度小于或等于所述第二光斑亮度，所述第一时长大于或等于所述第二时长。The terminal device according to claim 12, wherein when the first brightness is less than the second brightness, the first spot brightness is less than or equal to the second spot brightness, and the first duration is greater than or equal to the second duration.
  15. 根据权利要求12-14任意一项所述的终端设备，其特征在于，当所述指令被所述终端设备执行时，使得所述终端设备执行所述获得指纹图像传感器采集的所述用户手指的指纹图像的步骤之前，还执行以下步骤：The terminal device according to any one of claims 12-14, wherein when the instruction is executed by the terminal device, the terminal device is caused to execute the acquisition of the fingerprint image sensor of the user's finger. Before the step of fingerprint image, the following steps are also performed:
    如果所述手指的按压操作以及指纹的按压区域满足指纹采图的触发条件，则向所述指纹图像传感器发送采图通知，以指示所述指纹图像传感器采集所述用户手指的指纹图像。If the pressing operation of the finger and the pressing area of the fingerprint satisfy the trigger condition for fingerprint capture, a capture notification is sent to the fingerprint image sensor to instruct the fingerprint image sensor to capture the fingerprint image of the user's finger.
  16. 一种终端设备，其特征在于，包括：A terminal device, characterized in that it includes:
    一个或多个处理器；存储器；多个应用程序；以及一个或多个计算机程序，其中所述一个或多个计算机程序被存储在所述存储器中，所述一个或多个计算机程序包括指令，当所述指令被所述终端设备执行时，使得所述终端设备执行以下步骤：one or more processors; a memory; a plurality of application programs; and one or more computer programs, wherein the one or more computer programs are stored in the memory, the one or more computer programs comprising instructions, When the instruction is executed by the terminal device, the terminal device is caused to perform the following steps:
    检测到用户手指对所述终端设备的显示屏的按压操作之后，确定所述手指的按压操作以及指纹的按压区域是否满足指纹采图的触发条件；After detecting the pressing operation of the user's finger on the display screen of the terminal device, determine whether the pressing operation of the finger and the pressing area of the fingerprint meet the triggering conditions for fingerprint capture;
    如果满足，则获取所述终端设备当前所处环境的亮度；If satisfied, obtain the brightness of the environment where the terminal device is currently located;
    根据所述终端设备当前所处环境的亮度，确定指纹光斑的亮度；以及选用与所述亮度对应的图像传感单元阵列，确定所述图像传感单元阵列对应硬件单元的光电转换效率、像素的有效收光面积和曝光时长；Determine the brightness of the fingerprint light spot according to the brightness of the environment where the terminal device is currently located; and select an image sensing unit array corresponding to the brightness to determine the photoelectric conversion efficiency of the hardware unit corresponding to the image sensing unit array, the pixel density Effective light-receiving area and exposure time;
    在所述曝光时长结束之后，获得指纹图像传感器采集的所述用户手指的指纹图像；其中，所述指纹图像是所述指纹图像传感器通过与所述亮度对应的图像传感单元阵列采集的；After the exposure duration ends, a fingerprint image of the user's finger collected by a fingerprint image sensor is obtained; wherein, the fingerprint image is collected by the fingerprint image sensor through an image sensing unit array corresponding to the brightness;
    对所述指纹图像进行匹配识别。The fingerprint image is matched and identified.
  17. 根据权利要求16所述的终端设备，其特征在于，所述手指的按压操作以及指纹的按压区域满足指纹采图的触发条件包括：所述手指的按压位置与指纹光斑的位置匹配，并且所述指纹的按压区域的面积与所述指纹光斑的面积的比值大于或等于预定阈值。The terminal device according to claim 16, wherein the pressing operation of the finger and the pressing area of the fingerprint satisfying the triggering conditions for fingerprint capture comprises: the pressing position of the finger matches the position of the fingerprint spot, and the The ratio of the area of the pressed area of the fingerprint to the area of the fingerprint light spot is greater than or equal to a predetermined threshold.
  18. 根据权利要求16或17所述的终端设备，其特征在于，当所述指令被所述终端设备执行时，使得所述终端设备执行根据所述终端设备当前所处环境的亮度，确定指纹光斑的亮度；以及选用与所述亮度对应的图像传感单元阵列，确定所述图 像传感单元阵列对应硬件单元的光电转换效率、像素的有效收光面积和曝光时长的步骤包括：The terminal device according to claim 16 or 17, characterized in that, when the instruction is executed by the terminal device, the terminal device is caused to execute the determination of the brightness of the fingerprint spot according to the brightness of the environment where the terminal device is currently located. brightness; and selecting an image sensing unit array corresponding to the brightness, and determining the photoelectric conversion efficiency of the hardware unit corresponding to the image sensing unit array, the effective light-receiving area of the pixel, and the exposure duration include:
    响应于确定所述终端设备当前所处环境的亮度为第一亮度，确定指纹光斑的亮度为第一光斑亮度，以及确定与所述第一亮度对应的图像传感单元阵列为第一图像传感单元阵列，确定第一图像传感单元阵列对应硬件单元的光电转换效率、像素的有效收光面积和曝光时长分别为第一光电转换效率、第一有效收光面积和第一时长；In response to determining that the brightness of the environment in which the terminal device is currently located is the first brightness, determining the brightness of the fingerprint spot as the first spot brightness, and determining that the image sensing unit array corresponding to the first brightness is the first image sensor a unit array, determining the photoelectric conversion efficiency of the hardware unit corresponding to the first image sensing unit array, the effective light-receiving area and the exposure duration of the pixels as the first photoelectric conversion efficiency, the first effective light-receiving area and the first duration, respectively;
    响应于确定所述终端设备当前所处环境的亮度为第二亮度，确定指纹光斑的亮度为第二光斑亮度，以及确定与所述第二亮度对应的图像传感单元阵列为第二图像传感单元阵列，确定第二图像传感单元阵列对应硬件单元的光电转换效率、像素的有效收光面积和曝光时长分别为第二光电转换效率、第二有效收光面积和第二时长；In response to determining that the brightness of the environment where the terminal device is currently located is the second brightness, determining the brightness of the fingerprint spot as the second spot brightness, and determining that the image sensing unit array corresponding to the second brightness is the second image sensor a unit array, determining that the photoelectric conversion efficiency of the hardware unit corresponding to the second image sensing unit array, the effective light-receiving area and the exposure duration of the pixels are respectively the second photoelectric conversion efficiency, the second effective light-receiving area and the second duration;
    其中，第一光斑亮度不同于第二光斑亮度，第一光电转换效率不同于第二光电转换效率，第一有效收光面积不同于第二有效收光面积，第一时长不同于第二时长。The first light spot brightness is different from the second light spot brightness, the first photoelectric conversion efficiency is different from the second photoelectric conversion efficiency, the first effective light receiving area is different from the second effective light receiving area, and the first duration is different from the second duration.
  19. 根据权利要求18所述的终端设备，其特征在于，当第一亮度小于第二亮度时，所述第一光斑亮度小于或等于所述第二光斑亮度，所述第一光电转换效率大于或等于所述第二光电转换效率，所述第一有效收光面积大于或等于所述第二有效收光面积，所述第一时长大于或等于所述第二时长。The terminal device according to claim 18, wherein when the first brightness is less than the second brightness, the first spot brightness is less than or equal to the second spot brightness, and the first photoelectric conversion efficiency is greater than or equal to The second photoelectric conversion efficiency, the first effective light-receiving area is greater than or equal to the second effective light-receiving area, and the first duration is greater than or equal to the second duration.
  20. 根据权利要求16所述的终端设备，其特征在于，当所述指令被所述终端设备执行时，使得所述终端设备执行所述获得指纹图像传感器采集的所述用户手指的指纹图像的步骤之前，还执行以下步骤：The terminal device according to claim 16, wherein when the instruction is executed by the terminal device, before the terminal device executes the step of obtaining the fingerprint image of the user's finger collected by the fingerprint image sensor , and also perform the following steps:
    如果所述手指的按压操作以及指纹的按压区域满足指纹采图的触发条件，则向所述指纹图像传感器发送采图通知，以指示所述指纹图像传感器采集所述用户手指的指纹图像。If the pressing operation of the finger and the pressing area of the fingerprint satisfy the trigger condition for fingerprint capture, a capture notification is sent to the fingerprint image sensor to instruct the fingerprint image sensor to capture the fingerprint image of the user's finger.
  21. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中存储有计算机程序，当其在计算机上运行时，使得计算机执行如权利要求1-4任一项所述的方法。A computer-readable storage medium, characterized in that, a computer program is stored in the computer-readable storage medium, and when it runs on a computer, the computer executes the method according to any one of claims 1-4.
  22. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中存储有计算机程序，当其在计算机上运行时，使得计算机执行如权利要求5-9任一项所述的方法。A computer-readable storage medium, characterized in that, a computer program is stored in the computer-readable storage medium, and when it is run on a computer, it causes the computer to execute the method according to any one of claims 5-9.
  23. 一种计算机程序产品，其特征在于，当所述计算机程序产品在电子设备上运行时，使得所述电子设备执行如权利要求1-4或5-9中任一项所述的方法。A computer program product, characterized in that, when the computer program product runs on an electronic device, the electronic device is caused to execute the method according to any one of claims 1-4 or 5-9.
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