CN112800808A - Fingerprint identification method and electronic equipment - Google Patents
Fingerprint identification method and electronic equipment Download PDFInfo
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- CN112800808A CN112800808A CN201911106018.9A CN201911106018A CN112800808A CN 112800808 A CN112800808 A CN 112800808A CN 201911106018 A CN201911106018 A CN 201911106018A CN 112800808 A CN112800808 A CN 112800808A
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000001514 detection method Methods 0.000 claims description 10
- 230000002349 favourable effect Effects 0.000 abstract description 5
- 239000013589 supplement Substances 0.000 description 7
- 230000001502 supplementing effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000005286 illumination Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004020 luminiscence type Methods 0.000 description 2
- 239000012788 optical film Substances 0.000 description 2
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- 239000004973 liquid crystal related substance Substances 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1318—Sensors therefor using electro-optical elements or layers, e.g. electroluminescent sensing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72484—User interfaces specially adapted for cordless or mobile telephones wherein functions are triggered by incoming communication events
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Abstract
The application provides a fingerprint identification method and electronic equipment, which are applied to mobile phones, notebook computers, tablet computers and other electronic equipment. The electronic device is configured with a screen, a fingerprint sensor and at least one auxiliary light source, and the fingerprint sensor and the at least one auxiliary light source are located below the screen, the method comprising: detecting the light intensity of a first frequency band in external ambient light; when the light intensity of the first frequency band is smaller than a first threshold value, controlling at least one auxiliary light source to provide light of a second frequency band; when the light intensity of the first frequency band is not less than the first threshold value, controlling at least one auxiliary light source not to provide light of the second frequency band; at least a portion of the second frequency band overlaps at least a portion of the first frequency band. This application fingerprint sensor does not open auxiliary light source and carries out the light filling under the sufficient condition of external light to avoid fingerprint sensor to receive light signal too much and lead to unable fingerprint identification, be favorable to reducing electronic equipment's consumption simultaneously.
Description
Technical Field
The present invention relates to the field of fingerprint identification technologies, and in particular, to a fingerprint identification method and an electronic device.
Background
With the popularization of full-screen mobile phones, the under-screen fingerprints are more and more applied to full-screen mobile phones.
Most of the existing fingerprint identification adopts optical fingerprint identification, which comprises a light supplementing light source and a fingerprint sensor. In the fingerprint identification process, the light supplementing light source is opened to emit light, the light is projected to a finger to be scattered, scattered light enters the fingerprint sensor, and the fingerprint sensor processes the received light to realize fingerprint identification.
However, when in the sunlight scene, external light can pierce through the finger and carry out the fingerprint region, superpose the light that itself light filling light source provided again, cause the signal that fingerprint sensor detected to explode easily to can't carry out the fingerprint unblock under the highlight.
Disclosure of Invention
In order to overcome the above problem, embodiments of the present application provide a fingerprint identification method and an electronic device.
In order to achieve the above purpose, the embodiments of the present application adopt the following technical solutions:
in a first aspect, the present application provides a fingerprint identification method, the method being performed by an electronic device, the electronic device being configured with a screen, a fingerprint sensor and at least one auxiliary light source, and the fingerprint sensor and the at least one auxiliary light source being located below the screen, the method comprising: detecting the light intensity of a first frequency band in external ambient light; the light of the first frequency band is used for fingerprint identification of the fingerprint sensor; when the light intensity of the first frequency band is smaller than a first threshold value, controlling the at least one auxiliary light source to provide light of a second frequency band; when the light intensity of the first frequency band is not less than the first threshold value, controlling the at least one auxiliary light source not to provide the light of the second frequency band; at least a portion of the second frequency band overlaps at least a portion of the first frequency band.
According to the fingerprint identification method provided by the embodiment of the application, under the condition that the fingerprint sensor detects insufficient external light, the auxiliary light source needs to be started for light supplement, so that the fingerprint identification function is realized; under the sufficient condition of fingerprint sensor detection external light, do not open auxiliary light source and carry out the light filling to avoid fingerprint sensor to receive light signal too much and lead to unable fingerprint identification, be favorable to reducing electronic equipment's consumption simultaneously.
In another possible implementation, the detecting the light intensity of the first frequency band in the external ambient light includes: and detecting the light intensity of the first frequency band by using the fingerprint sensor or the ambient light sensor. In the process of acquiring a fingerprint image and performing fingerprint identification on the fingerprint sensor, the light intensity of the image can be converted into an electric signal so as to realize the detection of the intensity of the light of the acquired image, thus avoiding increasing the devices for detecting the light intensity.
In another possible implementation, the light of the first frequency band and the light of the second frequency band are invisible light.
In a second aspect, the present application provides an electronic device comprising: the device comprises a detection unit, at least one auxiliary light source and a processor, wherein the detection unit is used for detecting the light intensity of a first frequency band in external environment light; the light of the first frequency band is used for fingerprint identification of a fingerprint sensor of the electronic equipment; the at least one auxiliary light source is used for providing light of a second frequency band; at least a portion of the second frequency band overlaps at least a portion of the first frequency band; the processor is configured to control the at least one auxiliary light source to provide light of the second frequency band when the light intensity of the first frequency band is smaller than a first threshold; and controlling the at least one auxiliary light source not to provide light of the second frequency band when the light intensity of the first frequency band is not less than the first threshold; wherein the fingerprint sensor and the at least one auxiliary light source are located below a screen of the electronic device.
In another possible implementation, the detection unit is the fingerprint sensor or an ambient light sensor.
In another possible implementation, the light of the first frequency band and the light of the second frequency band are invisible light.
In a third aspect, the present application provides an electronic device, comprising: the fingerprint sensor is used for fingerprint identification by using infrared light of a first frequency band and detecting the intensity of the infrared light of the first frequency band in external environment light; the at least one infrared light source is used for providing infrared light of a second frequency band; at least a portion of the second frequency band overlaps at least a portion of the first frequency band; the processor is configured to control the at least one infrared light source to provide the infrared light of the second frequency band when the intensity of the infrared light of the first frequency band is smaller than a first threshold; when the infrared light intensity of the first frequency band is not smaller than the first threshold value, controlling the at least one infrared light source not to provide the infrared light of the second frequency band; wherein the fingerprint sensor and the auxiliary light source are located below the screen.
Drawings
The drawings that accompany the detailed description can be briefly described as follows.
Fig. 1 is a schematic internal side view of an electronic device according to an embodiment of the present disclosure;
fig. 2 is a schematic internal top-view structural diagram of an electronic device according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of an electronic device according to an embodiment of the present application, which performs fingerprint identification in a dark or non-infrared environment;
fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present application, which performs fingerprint identification in an environment with sufficient external ambient light;
fig. 5 is a flowchart of a fingerprint identification method according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
Fingerprint identification technique indicates under the screen, sets up fingerprint sensor in the display screen below, need not finger and fingerprint sensor contact, can realize gathering the fingerprint information that is located the finger of display screen top through this fingerprint sensor, and then carries out fingerprint identification's technique based on the fingerprint information of gathering. It can be understood that the electronic equipment capable of realizing fingerprint identification under the screen does not need to be provided with a fingerprint acquisition area outside the display screen, thereby being beneficial to improving the screen occupation ratio of the electronic equipment.
It should be noted that the electronic devices in the embodiments of the present application include, but are not limited to, mobile phones, notebook computers, tablet computers, and other various types of devices having display screens.
Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application. As shown in fig. 1, the electronic device 100 provided herein includes a display screen 10, a fingerprint sensor 20, an auxiliary light source 30, and a processor 40. Wherein, a fingerprint sensor 20 is arranged right below the display screen 10, and a plurality of auxiliary light sources 30 are arranged around the fingerprint sensor 20.
In the electronic device 100, light (light rays shown by solid arrows in fig. 1) emitted by the plurality of auxiliary light sources 30 can be transmitted to the upper side of the display screen 10 through the display screen 10, and then projected to the finger 50 located above the display screen 10 for reflection, and the formed reflected light is transmitted to the fingerprint sensor 20 through the display screen 10, and the fingerprint sensor 20 collects fingerprint information of the finger 50 according to the received reflected light for fingerprint identification.
In an environment where the electronic device is in a high illumination intensity, light in an external environment (such as light rays shown by dotted arrows in fig. 1) can be refracted through the finger 50 located above the display screen 10, the formed refracted light is transmitted to the fingerprint sensor 20 through the display screen 10, and the fingerprint sensor 20 can also collect fingerprint information of the finger 50 according to the received refracted light to perform fingerprint identification.
However, if the fingerprint sensor 20 receives the reflected light and the refracted light at the same time, the fingerprint sensor 20 receives too many light signals, so that fingerprint recognition cannot be performed.
In the embodiment of the present application, the fingerprint sensor 20 is further configured to obtain the light intensity of the first frequency band in the external environment.
It should be noted that, when the fingerprint recognition function of the electronic device 100 is triggered, the auxiliary light source 30 is not operated first, so that the fingerprint sensor 20 obtains the light in the external environment. And then, according to whether the fingerprint sensor 20 needs light supplement, whether the auxiliary light source is turned on to work or not is determined so as to supplement light.
In the electronic device 100 of the embodiment of the application, the display screen 10 may display a pattern by using a self-luminous display screen, for example, an organic light-emitting diode (OLED) display screen; or a non-self-luminous display screen, such as a Liquid Crystal Display (LCD), may be used to display the pattern. The embodiments of the present application are not limited thereto.
However, for the OLED display, the visible light sensor is mainly applied to the fingerprint under the OLED display, the self-luminescence of the OLED display is utilized to detect the fingerprint, and the visible light in the external environment is reflected by the finger 50 when passing through the finger 50, and cannot be imaged on the visible light sensor. For the LCD display, the visible light cannot penetrate the backlight module (provided with the reflective sheet) in the fingerprint sensor 20, and thus cannot be sensed by the fingerprint sensor. Therefore, the light collected by the fingerprint recognition in the embodiment of the present application is invisible light, preferably infrared light. In the following embodiments, infrared light will be used for fingerprint recognition.
In one possible embodiment, the auxiliary light source 30 may be an infrared LED for providing infrared light. The plurality of infrared LEDs are uniformly distributed around the fingerprint sensor 20, so that infrared light emitted by each infrared LED is reflected and uniformly projected onto the fingerprint sensor 20.
Illustratively, as shown in fig. 2, when the fingerprint sensor 20 is square, one auxiliary light source 30 is disposed at the middle of four sides of the fingerprint sensor 20, and the distance between each auxiliary light source 303 and the corresponding side of the fingerprint sensor 20 is the same, so as to ensure that the light emitted by each auxiliary light source 30 is reflected and uniformly projected on the fingerprint sensor 20.
The light of the first frequency band acquired by the fingerprint sensor 20 is infrared light of a specific frequency band. This application carries out the survey of luminous intensity through the infrared light of acquireing specific frequency channel to avoid fingerprint sensor 20 to survey the infrared light of full frequency channel.
In one possible embodiment, the fingerprint sensor typically has a fixed peak wavelength in the sensitive band, such as a peak wavelength of 850nm or 940 nm. However, the light collected by the fingerprint sensor 20 is usually a range, and not a single wavelength, so the first frequency band is preferably close to the sensitive band of the fingerprint sensor, for example, the absorption peak band of the fingerprint sensor is around 940nm, and the first frequency band detected by the fingerprint sensor 20 also needs to cover the 940nm range.
In one possible embodiment, the fingerprint sensor 20 of the embodiment of the present application is an infrared photosensitive sensor. The infrared photosensitive sensor is used for receiving infrared light in the external environment. Specifically, the infrared light-sensitive sensor may be an array of a plurality of infrared photodiodes, each of which may generate an electrical signal according to the infrared light received by the infrared photodiode, and the generated electrical signal is related to the illumination intensity of the received infrared light.
In the embodiment of the present application, the infrared sensor converts the received infrared light of a specific frequency band into a current, and then sends the current value to the processor 40. The larger the current value is, the stronger the intensity of the infrared light received by the fingerprint sensor 20 is, so that the intensity of the infrared light in the external environment where the fingerprint sensor 20 is located is stronger; conversely, the smaller the current value, the weaker the intensity of the infrared light received by the fingerprint sensor 20, and thus the weaker the intensity of the infrared light in the external environment in which the fingerprint sensor 20 is located.
The processor 40 is connected to the fingerprint sensor 20 and the auxiliary light source 30, respectively. The processor 40 is configured to control whether the auxiliary light source 30 provides light of the second frequency band according to a relationship between the light intensity of the first frequency band and a set threshold.
Specifically, the processor 40 stores in advance a threshold value for detecting the light intensity in the external environment. The set threshold value may be an electrical signal value, an optical signal value, or the like. The type of threshold set matches the type of signal values received by processor 40, i.e., matches the device to which processor 40 is connected.
The processor 40 is connected to the infrared light sensor. After receiving the current value sent by the infrared photosensitive sensor, the current value is compared with a stored preset threshold value. When the received current value is smaller than the predetermined threshold value, it indicates that the intensity of the infrared light received by the fingerprint sensor 20 is weak, and the infrared light in the external environment acquired by the fingerprint sensor 20 cannot support the infrared light for fingerprint identification, and at this time, the processor 40 controls each auxiliary light source 30 to operate to provide the infrared light for light supplement. When the received current value is greater than or equal to the predetermined threshold value, it indicates that the intensity of the infrared light received by the fingerprint sensor 20 is relatively strong, and the infrared light in the external environment acquired by the fingerprint sensor 20 is sufficient to support the infrared light for fingerprint identification, and at this time, the processor 40 controls each auxiliary light source 30 not to operate, which is beneficial to reducing the power consumption of the electronic device 100.
The processor 40 controls each auxiliary light source 30 to emit infrared light for light supplement, and controls the intensity of the infrared light provided by each auxiliary light source 30 according to the magnitude of the received current value. When the smaller the received current value is, the weaker the infrared light intensity in the external environment is, the more infrared light needs to be supplemented, and at this time, the stronger the infrared light intensity emitted by each auxiliary light source 30 is controlled. When the received current value is larger, which indicates that the intensity of the infrared light in the external environment is stronger, less infrared light needs to be supplemented, and at this time, each auxiliary light source 30 is controlled to emit a small amount of infrared light, so that the power consumption of the electronic device 100 is prevented from being increased due to the excessively large illumination intensity of the infrared light emitted by the auxiliary light sources 30.
In addition, in the process of supplementing light by emitting infrared light by each auxiliary light source 30, the fingerprint sensor 20 continues to collect the infrared light to detect whether the infrared light received by the fingerprint sensor 20 is too much, so as to ensure that the fingerprint sensor 20 cannot perform fingerprint identification due to the supplementing light.
The second frequency band of the infrared rays provided by the auxiliary light source 30 is any frequency band of the light required by the fingerprint sensor 20 for fingerprint identification. However, the acquired light of the first frequency band must be within the second frequency band of the infrared rays provided by the auxiliary light source 30.
The electronic device provided by the embodiment of the application is in a dark or non-infrared environment, and the current value received by the processor 40 is substantially 0. In this case, the infrared light required for fingerprint recognition by the fingerprint sensor 20 is supplied from the auxiliary light source 30.
For example, as shown in fig. 3, when the electronic device is in a dark environment, the infrared light source emits infrared light, the infrared light passes through the infrared-transparent optical film, the Light Guide Film (LGF), the Thin Film Transistor (TFT), the Color Filter (CF), and other groups of layers of the display screen 10, and is reflected by the finger 50, and then passes through each group of layers of the display screen 10 again to propagate to the fingerprint sensor 20, and the fingerprint sensor 20 collects fingerprint information of the finger 50 according to the received reflected light, so as to perform fingerprint identification.
The electronic device provided by the embodiment of the application, if in the sufficient condition of external light, processor 40 controls not to open auxiliary light source 30 and carries out the light filling this moment to avoid fingerprint sensor 20 to receive light signal too much and lead to unable fingerprint identification, be favorable to reducing electronic device 100's consumption simultaneously.
For example, as shown in fig. 4, when the electronic device is in an environment with sufficient external light, the infrared light source does not emit infrared light, the external infrared light passes through the finger 50 and is directly incident on the display screen 10, or is reflected to the finger 50 through the outer surface of the glass of the display screen 10, and is reflected to the display screen 10 through the finger 50, and then passes through the infrared-permeable optical film, LGF, TFT, CF, and other layers of the display screen 10 and is transmitted to the fingerprint sensor 20, and the fingerprint sensor 20 collects fingerprint information of the finger 50 according to the received reflected light, so as to perform fingerprint identification.
It should be particularly noted that although the fingerprint sensor 30 is used to acquire the light intensity of the first frequency band in the external environment in the embodiment of the present application, it is obvious to those skilled in the art that other devices, such as an ambient light sensor, a light intensity meter, an intensity detector, etc., may be added instead of the fingerprint sensor 30 to acquire the light intensity of the first frequency band in the external environment, and then send the acquired light intensity to the processor 40 for processing. This solution can also be implemented in the electronic device provided in the embodiments of the present application, and the present application is not limited herein.
Fig. 5 is a flowchart of a fingerprint identification method according to an embodiment of the present application. As shown in fig. 5, an embodiment of the present application provides a fingerprint identification method, which includes the following specific implementation steps:
step S501, triggering a fingerprint identification function.
Specifically, for the mobile phone, when operations such as pressing a 'power on/off' key, waking up a screen, entering an APP, paying and the like are performed, a fingerprint identification function can be triggered.
Step S502, detecting the light intensity of the first frequency band in the external ambient light.
Specifically, in the fingerprint identification process, the acquired light passes through the display screen, for the OLED display screen, the visible light sensor is mainly used for fingerprint detection under the screen of the OLED display screen, self-luminescence of the OLED display screen is utilized for fingerprint detection, and visible light in the external environment is reflected by a finger when passing through the finger 50 and cannot form an image on the visible light sensor. For the LCD display, the visible light cannot penetrate the backlight module (provided with the reflective sheet) in the fingerprint sensor 20, and thus cannot be sensed by the fingerprint sensor. Therefore, the light collected by fingerprint identification in the embodiment of the application is invisible light, and preferably infrared light.
The light of the first frequency band is infrared light of a specific frequency band, and the light intensity is detected by acquiring the infrared light of the specific frequency band, so that the infrared light of the full frequency band is prevented from being detected. In one possible embodiment, the sensitive band of the fingerprint sensor is typically fixed, such as 850nm or 940 nm. But the light collected is typically a range and not a single wavelength, so the first band of light is preferably in the range 850nm to 940 nm.
In the embodiment of the present application, the acquired light in the first frequency band is infrared light in a specific frequency band. The current value is obtained by converting the received infrared light of the specific frequency band into current. Wherein, the larger the current value is, the stronger the intensity of the received infrared light is, so that the intensity of the infrared light in the external environment where the fingerprint sensor 20 is located is stronger; conversely, a smaller current value indicates a weaker intensity of the received infrared light, and thus a weaker intensity of the infrared light in the external environment where the fingerprint sensor 20 is located.
In step S503, it is determined whether the light intensity of the first frequency band exceeds a threshold.
Specifically, the processor 40 stores in advance a threshold value for detecting the light intensity in the external environment. The set threshold value may be an electrical signal value, an optical signal value, or the like. The type of threshold set matches the type of signal into which the light intensity is converted.
The processor 40 receives the current value and compares it to a stored predetermined threshold. When the received current value is smaller than the predetermined threshold, it indicates that the intensity of the received infrared light is weak, and the infrared light in the external environment detected by the fingerprint sensor 20 cannot support the infrared light for fingerprint identification, and then step S504 is executed. When the received current value is greater than or equal to the predetermined threshold value, it indicates that the intensity of the received infrared light is relatively strong, and the light in the external environment acquired by the fingerprint sensor 20 is sufficient to support fingerprint identification, and then step S505 is executed.
Step S504, when the light intensity of the first frequency band is smaller than the threshold, controlling at least one auxiliary light source to provide light of the second frequency band.
The processor 40 controls each auxiliary light source to emit infrared light for light supplement, and controls the intensity of the infrared light provided by each auxiliary light source according to the magnitude of the received current value. When the smaller the received current value is, the weaker the infrared light intensity in the external environment is, the more infrared light needs to be supplemented, and at this time, the stronger the infrared light intensity emitted by each auxiliary light source is controlled. When the received current value is larger, the intensity of infrared light in the external environment is stronger, the infrared light to be supplemented is less, and at the moment, each auxiliary light source is controlled to emit a small amount of infrared light, so that the phenomenon that the power consumption of the electronic equipment is increased due to the fact that the illumination intensity of the infrared light emitted by the auxiliary light source is too large is avoided.
In addition, in the process of supplementing light by emitting infrared light by each auxiliary light source 30, the fingerprint sensor 20 continues to collect the infrared light to detect whether the infrared light received by the fingerprint sensor 20 is too much, so as to ensure that the fingerprint sensor 20 cannot perform fingerprint identification due to the supplementing light.
The second frequency band of the infrared ray provided by the auxiliary light source is any frequency band of the light required by the fingerprint sensor 20 for fingerprint identification. However, the acquired light of the first frequency band must be within the frequency band of the infrared light provided by the auxiliary light source.
Step S505, when the light intensity of the first frequency band is not less than the threshold, controlling at least one auxiliary light source not to provide the light of the second frequency band.
The electronic equipment that this application embodiment provided, if be in under the sufficient condition of external light, treater 40 control auxiliary light source is out of work this moment to avoid fingerprint sensor to receive light signal too much and lead to unable fingerprint identification, be favorable to reducing electronic equipment's consumption simultaneously.
Step S506, the fingerprint sensor performs fingerprint recognition.
The fingerprint sensor 20 collects fingerprint information of the finger 50 based on the reflected light received thereby to perform fingerprint recognition.
According to the fingerprint identification method provided by the embodiment of the application, if the fingerprint sensor detects insufficient external light, the auxiliary light source needs to be started for light supplement, so that the fingerprint identification function is realized; if the fingerprint sensor detects under the sufficient condition of external light, do not open auxiliary light source and carry out the light filling to avoid fingerprint sensor to receive light signal too much and lead to unable fingerprint identification, be favorable to reducing electronic equipment's consumption simultaneously.
In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
Finally, the description is as follows: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (7)
1. A fingerprint identification method, the method being performed by an electronic device, the electronic device being configured with a screen, a fingerprint sensor and at least one auxiliary light source, and the fingerprint sensor and the at least one auxiliary light source being located below the screen, the method comprising:
detecting the light intensity of a first frequency band in external ambient light; the light of the first frequency band is used for fingerprint identification of the fingerprint sensor;
when the light intensity of the first frequency band is smaller than a first threshold value, controlling the at least one auxiliary light source to provide light of a second frequency band;
when the light intensity of the first frequency band is not less than the first threshold value, controlling the at least one auxiliary light source not to provide the light of the second frequency band; at least a portion of the second frequency band overlaps at least a portion of the first frequency band.
2. The method of claim 1, wherein detecting the light intensity of the first frequency band in the external ambient light comprises:
and detecting the light intensity of the first frequency band by using the fingerprint sensor or the ambient light sensor.
3. The method of any of claims 1-2, wherein the first band of light and the second band of light are invisible light.
4. An electronic device, comprising: a detection unit, at least one auxiliary light source and a processor,
the detection unit is used for detecting the light intensity of a first frequency band in external environment light; the light of the first frequency band is used for fingerprint identification of a fingerprint sensor of the electronic equipment;
the at least one auxiliary light source is used for providing light of a second frequency band; at least a portion of the second frequency band overlaps at least a portion of the first frequency band;
the processor is configured to control the at least one auxiliary light source to provide light of the second frequency band when the light intensity of the first frequency band is smaller than a first threshold; and
when the light intensity of the first frequency band is not less than the first threshold value, controlling the at least one auxiliary light source not to provide the light of the second frequency band; wherein the fingerprint sensor and the at least one auxiliary light source are located below a screen of the electronic device.
5. The electronic device of claim 4, wherein the detection unit is the fingerprint sensor or an ambient light sensor.
6. The electronic device of any of claims 4-5, wherein the first band of light and the second band of light are invisible light.
7. An electronic device, comprising: a fingerprint sensor, a screen, at least one infrared light source and a processor,
the fingerprint sensor is used for carrying out fingerprint identification by using infrared light of a first frequency band and detecting the infrared light intensity of the first frequency band in external environment light;
the at least one infrared light source is used for providing infrared light of a second frequency band; at least a portion of the second frequency band overlaps at least a portion of the first frequency band;
the processor is configured to control the at least one infrared light source to provide the infrared light of the second frequency band when the intensity of the infrared light of the first frequency band is smaller than a first threshold; and
when the infrared light intensity of the first frequency band is not smaller than the first threshold value, controlling the at least one infrared light source not to provide the infrared light of the second frequency band; wherein the fingerprint sensor and the auxiliary light source are located below the screen.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911106018.9A CN112800808A (en) | 2019-11-13 | 2019-11-13 | Fingerprint identification method and electronic equipment |
| PCT/CN2020/127756 WO2021093721A1 (en) | 2019-11-13 | 2020-11-10 | Fingerprint recognition method and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201911106018.9A CN112800808A (en) | 2019-11-13 | 2019-11-13 | Fingerprint identification method and electronic equipment |
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| CN112800808A true CN112800808A (en) | 2021-05-14 |
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| CN201911106018.9A Pending CN112800808A (en) | 2019-11-13 | 2019-11-13 | Fingerprint identification method and electronic equipment |
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| WO (1) | WO2021093721A1 (en) |
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| WO2023023953A1 (en) * | 2021-08-24 | 2023-03-02 | 京东方科技集团股份有限公司 | Display substrate, display device, and fingerprint recognition method |
| US20230267761A1 (en) * | 2020-07-23 | 2023-08-24 | 3M Innovative Properties Company | Electronic device with optical sensor module |
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- 2019-11-13 CN CN201911106018.9A patent/CN112800808A/en active Pending
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- 2020-11-10 WO PCT/CN2020/127756 patent/WO2021093721A1/en active Application Filing
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| US20180082101A1 (en) * | 2016-09-17 | 2018-03-22 | Shenzhen GOODIX Technology Co., Ltd. | Fingerprint acquisition apparatus and method, terminal device, and method for controlling a screen to be on or off |
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| US20230267761A1 (en) * | 2020-07-23 | 2023-08-24 | 3M Innovative Properties Company | Electronic device with optical sensor module |
| US11954939B2 (en) * | 2020-07-23 | 2024-04-09 | 3M Innovative Properties Company | Electronic device with optical sensor module |
| WO2023023953A1 (en) * | 2021-08-24 | 2023-03-02 | 京东方科技集团股份有限公司 | Display substrate, display device, and fingerprint recognition method |
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| WO2021093721A1 (en) | 2021-05-20 |
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