CN110287852A - Fingerprint processing method and electronic equipment - Google Patents

Abstract

The application provides a fingerprint processing method and electronic equipment, wherein the fingerprint processing method comprises the following steps: when a fingerprint acquisition request is detected, determining a pressing area of a finger of a user; determining a signal receiving area of the fingerprint sensing module according to the pressing area; receive the fingerprint detection signal through the signal reception area, the fingerprint sensing module can gather specific angle signal and shield nonspecific angle signal in the fingerprint detection signal, forms the fingerprint image after handling, wherein, the fingerprint detection signal gets into behind the user's finger by initial detection signal to through the regional outgoing of finger and electronic equipment contact and form, specific angle signal is formed by the regional outgoing of fingerprint ridge, nonspecific angle signal is formed by the regional outgoing of fingerprint valley. The fingerprint sensing module only collects signals of the fingerprint ridge area, and information of the fingerprint ridge can be accurately identified under the condition that the difference between the signal quantity of the fingerprint ridge area and the signal quantity of the fingerprint valley area is small, so that the fingerprint identification rate is improved.

Description

Fingerprint processing method and electronic device

technical field

The present application relates to the technical field of fingerprint identification, and in particular to a fingerprint processing method and an electronic device.

Background technique

At present, the mobile phone collects fingerprints by illuminating the area where the ridge of the fingerprint is in contact with the display screen, and the area where the valley of the fingerprint is opposite to the display screen, and comparing the reflectivity at the ridge and the reflectivity at the valley. Identify user fingerprints. However, in the case where the contact between the finger and the display screen is not ideal, the difference between the reflectivity at the ridges illuminated by the light and the reflectivity at the valleys illuminated by the light is not very large, resulting in inaccurate fingerprint recognition and lowering the fingerprint recognition rate.

SUMMARY OF THE INVENTION

The present application provides a fingerprint processing method and electronic device.

The present application provides a fingerprint processing method, which is applied to an electronic device, the electronic device includes a fingerprint sensing module, and the fingerprint processing method includes:

When detecting a fingerprint collection request, determine the pressing area of the user's finger;

Determine the signal receiving area of the fingerprint sensor module according to the pressing area;

The fingerprint detection signal is received through the signal receiving area, and the fingerprint sensing module can collect the specific angle signal in the fingerprint detection signal and shield the non-specific angle signal, and form a fingerprint image after processing, wherein the fingerprint detection signal is determined by the environment After the signal or/and the initial detection signal emitted by the fingerprint detection signal source enters the user's finger, it is formed through the area where the finger contacts the electronic device, and the specific angle signal is formed by the fingerprint ridge area. It is formed by exiting from the fingerprint valley area.

The application provides an electronic device, wherein the electronic device includes a display screen and a fingerprint sensing module, the display screen has a front face facing a user and a back face opposite to the front face, the fingerprint sensing module Fixed on the back of the display screen, the fingerprint sensor module is used to receive the fingerprint detection signal emitted by the user's fingerprint, and can collect the specific angle signal in the fingerprint detection signal and shield the non-specific angle signal, and form a fingerprint image after processing. Wherein, the fingerprint detection signal is formed by the environmental signal or/and the initial detection signal emitted by the fingerprint detection signal source entering the user's finger and exiting through the area where the finger contacts the electronic device, and the specific angle signal is emitted from the fingerprint ridge area. However, the non-specific angle signal is formed by emitting from the fingerprint valley area.

After the initial detection signal emitted by the environmental signal or/and the fingerprint detection signal source enters the user's finger, it is refracted through the interface between the ridge area of the fingerprint and the electronic device to form a specific angle signal, and the initial detection signal is in contact with the air through the valley area of the fingerprint. The interface refraction forms a non-specific angle signal, and the fingerprint sensing module can collect the specific angle signal and shield the non-specific angle signal, so that the fingerprint sensor module only collects the signal in the fingerprint ridge area, and realizes the detection in the fingerprint ridge area. When the difference between the semaphore and the semaphore in the valley area is small, the information at the ridge of the fingerprint can still be accurately identified, thereby improving the fingerprint identification rate.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present application more clearly, the following briefly introduces the accompanying drawings used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

1 is a schematic flowchart of a fingerprint processing method provided by an embodiment of the present application;

2 is a schematic diagram of an electronic device to which the fingerprint processing method provided by an embodiment of the present application is applied;

3 is a schematic diagram of an electronic device to which the fingerprint processing method provided by another embodiment of the present application is applied;

Figure 4 is an enlarged schematic view of part III of Figure 2;

5 is a schematic diagram of an electronic device to which the fingerprint processing method provided by another embodiment of the present application is applied;

6 is another schematic diagram of an electronic device to which the fingerprint processing method provided by an embodiment of the present application is applied;

7 is another schematic diagram of an electronic device to which the fingerprint processing method provided by an embodiment of the present application is applied;

8 is a schematic cross-sectional view of an electronic device provided by an embodiment of the present application;

9 is another schematic cross-sectional view of an electronic device provided by an embodiment of the present application;

10 is a schematic diagram of an electronic device provided by another embodiment of the present application;

11 is a schematic diagram of an electronic device provided by another embodiment of the present application;

12 is a schematic diagram of an electronic device provided by another embodiment of the present application;

FIG. 13 is another schematic diagram of an electronic device provided by an embodiment of the present application.

Detailed ways

The technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application.

The embodiment of the present application provides an electronic device for a fingerprint processing method, and the electronic device may be a mobile phone, a tablet computer, a notebook computer, a media player, etc., or a financial terminal device such as an automated teller machine (Automated Teller Machine, ATM).

Referring to FIG. 1 and FIG. 2 , the present application provides an electronic device 200 . The electronic device 200 includes a display screen 100 and a fingerprint sensor module 40 . The display screen 100 has a front side 101 facing the user and a back side 102 opposite the front side 101 . The fingerprint sensor module 40 is fixed on the back surface 102 of the display screen 100 . The fingerprint sensing module 40 obtains the user's fingerprint detection signal through the display screen 100 .

The present application further provides a fingerprint processing method, which is applied in the electronic device 200, and the fingerprint processing method includes the steps:

101: When a fingerprint collection request is detected, determine the pressing area A of the user's finger.

Specifically, the electronic device 200 can detect the fingerprint collection request through devices such as a touch sensor, a key switch, a camera, a distance sensor, and a receiver. For example, when the electronic device 200 detects a fingerprint collection request through the touch layer of the display screen 100, and the touch layer senses a user pressing touch signal within a preset period of time, it is confirmed that the electronic device 200 detects the fingerprint collection request. Alternatively, a gesture can be preset, and when the gesture input is received on the touch layer of the display screen 100 , it is confirmed that the electronic device 200 detects the fingerprint collection request. For another example, when the electronic device 200 detects the fingerprint collection request through the microphone and the distance sensor, it can receive the user's voice command through the microphone and send it to the controller, and the controller analyzes the corresponding voice content according to the voice command, If the voice content includes "fingerprint collection" or "fingerprint identification", etc., it is confirmed that the electronic device 200 has detected a fingerprint collection request.

It can be understood that the display screen 100 of the electronic device 200 has a fingerprint identification area. When the electronic device 200 detects the fingerprint collection request, the pressing area A of the user's finger is determined in the fingerprint recognition area of the display screen 100 . The fingerprint recognition area may be a full-screen area of the display screen 100 , a partial area of the display screen 100 , or a preset area of the display screen 100 . Specifically, the fingerprint recognition area of the display screen 100 is the orthographic projection area of the fingerprint sensor module 40 on the display screen 100 . The pressing area A is the area where the user's finger contacts the display screen 100 or the area where the user's finger is close to the display screen 100 and forms an orthographic projection on the display screen 100 .

Of course, in other embodiments, the electronic device 200 may also be provided with a fingerprint identification area on the back shell. The fingerprint sensor module 40 may also be stacked on the inner side of the back case. The fingerprint sensing module 40 forms a fingerprint identification area in the orthographic projection area of the back shell. When the user's finger touches the fingerprint recognition area of the back case, the pressing sensor device of the back case detects the pressing of the user's finger, and the pressing sensor device determines the pressing area A in the fingerprint recognition area, and the fingerprint sensor module 40 The user's fingerprint detection letter is received through the pressing area A of the back shell.

In one embodiment, when the electronic device 200 senses a touch signal of a finger of the user in the fingerprint recognition area through the touch layer of the display screen 100, a fingerprint collection request is detected, and according to the The touch signal sensed by the touch layer determines an area where a finger of the user contacts the display screen 100 as a pressing area A, so as to collect a fingerprint image of a finger of the user according to a pressing area A.

In another embodiment, when the electronic device 200 senses touch signals of multiple fingers of the user in the fingerprint recognition area through the touch layer of the display screen 100, multiple fingerprint collection requests are detected, and according to The multiple touch signals sensed by the touch layer determine multiple areas where multiple fingers of the user are in contact with the display screen 100 as multiple pressing areas A, so as to facilitate the collection of the user's multiple fingers according to the multiple pressing areas A. Fingerprint image.

The fingerprint processing method includes the steps:

102 : Determine the signal receiving area B of the fingerprint sensing module 40 according to the pressing area A.

In this embodiment, the signal receiving area B is formed on the fingerprint sensor module. The signal receiving area B completely corresponds to the area where the user's finger touches the display screen 100 . That is, the signal receiving area B completely corresponds to the pressing area A. The fingerprint sensing surface of the fingerprint sensing module 40 may be larger than the signal receiving area B. The fingerprint sensing surface of the fingerprint sensing module 40 may also just coincide with the signal receiving area B.

In one embodiment, the fingerprint sensing module 40 is provided with a fingerprint sensing surface 401 , and the fingerprint sensing surface 401 is completely coincident with the display screen 100 . When the user's finger touches any position on the front surface 101 of the display screen 100, the fingerprint sensor module 40 can receive the user's fingerprint detection signal through the display screen 100, so that the electronic device 200 can realize full-screen fingerprint recognition Unlock.

In another embodiment, as shown in FIG. 3 , the sensing surface 401 of the fingerprint sensing module 400 is partially opposite to the display screen 100 . The user's finger needs to touch the area on the display screen 100 opposite to the fingerprint sensing module 400 so that the fingerprint sensing module 400 can receive the fingerprint detection signal of the user's finger. When the touch layer of the display screen 100 senses that the pressing area A of the user's finger exceeds the sensing surface 401 of the fingerprint sensor module 40 , the display screen 100 can be in contact with the fingerprint sensor module 40 . The relative area of the sensing surface 401 sends an identification signal to prompt the user's finger to move to the area opposite to the sensing surface 401 of the fingerprint sensing module 40 to perform a fingerprint recognition operation. When the touch layer of the display screen 100 senses that the pressing area A of the user's finger is located in an area opposite to the sensing surface 401 of the sensing module 40 , the sensing surface 401 is determined according to the pressing area A on the signal receiving area B.

103 : Determine a signal transmission area C according to the pressing area A, so that the signal transmission area C can transmit the fingerprint detection signal emitted from the user's finger.

In this embodiment, the signal transmission area C is an area on the display screen 100 that can transmit optical signals, that is, when the fingerprint detection signal is an optical signal, the signal transmission area can transmit the fingerprint detection signal. The signal transmission area C covers at least the pressing area A. After receiving the sensing signal of the pressing area A, the display screen 100 controls part or all of the area to turn off the screen according to the sensing signal of the pressing area A, so as to form the signal transmission area C. Of course, in other embodiments, if the fingerprint detection signal is an ultrasonic signal, the signal transmission area C may be an air-free area on the display screen 100 . If the fingerprint detection signal is an electromagnetic signal, the signal transmission area C may be a non-electromagnetic signal area on the display screen 100 .

As an embodiment, please refer to FIG. 2 and FIG. 4 together, the display screen 100 is in a fully screen-off state, so that the entire display area of the display screen 100 does not emit light to form the signal transmission area C. The area of the signal transmission area C is increased, so as to increase the fingerprint identification area and reduce the power consumption of the display screen 100 to achieve the purpose of energy saving.

When the user's finger presses on the front surface 101 of the display screen 100 , the user's finger has a contact area 01 in contact with the display screen 100 and an edge area 02 located at the edge of the contact area 01 . There is a distance between the edge region 02 and the front surface 101 , and the edge region 02 can receive an environmental signal, so that the environmental signal can enter the user's finger through the edge region 02 as an initial detection signal. The ambient signal may be sunlight, illumination light, and ambient light of a display light of an external device.

After the display screen 100 is in the full screen-off state, the environmental signal enters the user's finger through the edge area 02 as an initial detection signal, and the initial detection signal is transmitted to the contact area 01 in the user's finger, so that the contact The area 01 forms a "virtual signal source" to facilitate the fingerprint sensing module 40 to detect the "virtual signal source" and to identify the fingerprint information of the contact area 01. After the initial detection signal is transmitted to the contact area 01, it is emitted to the display screen 100 through the contact area 01 to form a fingerprint detection signal, and the display screen 100 is in a full screen off state, that is, any position of the display area of the display screen 100 is The fingerprint detection signal can be passed through to increase the transmittance of the display screen 100 to the fingerprint detection signal.

In this embodiment, after determining the pressing area A, the display screen 100 may perform a full screen-off process according to the pressing area A. The display screen 100 may also perform full screen-off processing according to the fingerprint collection request after detecting the fingerprint collection request. The display screen 100 may also perform full screen-off processing according to the screen-off instruction before detecting the fingerprint collection request. After the display screen 100 is completely turned off, the display area of the display screen 100 does not emit light, so that when the fingerprint detection signal of the user's finger is an optical signal, the display area of the display screen 100 can conduct the user's fingerprint detection. Signal. That is, after the full screen of the display screen 100 is turned off, the ambient light emitted by the ambient light source can be used as the initial detection signal for detecting the user's fingerprint. After the display screen 100 is completely turned off, the display area of the display screen 100 does not emit light, or it is convenient for the user's finger to only receive ambient light, that is, it is convenient for the user's finger to only receive the ambient signal, so that the electronic device 200 is in the Fingerprint recognition is performed without lighting the display screen 100, so as to achieve the effect of energy saving. The sensing surface 401 of the fingerprint sensing module 40 is completely coincident with the display screen 100 , that is, when the display screen 100 is completely turned off, the user's finger touches any position of the display screen 100 , so The fingerprint sensing module 40 can receive fingerprint detection signals through the display screen 100 to realize fingerprint recognition.

In another embodiment, please refer to FIG. 5 , which is substantially the same as the embodiment shown in FIG. 2 , except that the electronic device 200 can be in the bright screen state by controlling a part of the display screen 100 to be in the bright screen state. The area emits visible light to realize the initial signal of fingerprint detection. Of course, in other embodiments, the initial detection signal may also be transmitted by other fingerprint detection signal sources.

Specifically, after the electronic device 200 detects the fingerprint collection request, the electronic device 200 determines the to-be-lit area and the screen-off area of the display screen 100 according to the pressing area A, wherein the screen-off area is Cover at least the pressing area A, and the to-be-lit area is located on the peripheral side of the screen-off area; the electronic device 200 lights the to-be-lit area after determining the to-be-lit area and the screen-off area area to form a bright screen area D, wherein the screen off area forms the signal transmission area C, the bright screen area D can emit visible light, and the visible light can be used as the initial detection signal to utilize the initial detection signal The signal detects the user's fingerprint and realizes the fingerprint recognition.

Determining the screen-off region according to the pressing region A may be determining the pressing region A as the screen-off region, or determining the region formed by shifting the edge of the pressing region A outward as the screen-off region. As an implementation manner, the screen-off area coincides with the pressing area A. That is, the screen-off area is the area where the user's finger touches the display screen 100 or the user's finger is close to the display screen 100 and is formed on the front projection area of the display screen 100 . The determination of the to-be-lit area according to the pressed area A may be to determine the area on the display screen 100 other than the pressed area A as the to-be-lit area. As an implementation manner, the to-be-lit area may be an annular area enclosed around the periphery of the screen-off area. The to-be-lit area of the display screen 100 is located on the peripheral side of the off-screen area, and after the to-be-lit area is lit to form the bright-screen area D, the bright-screen area D is located on the peripheral side of the off-screen area , that is, the bright screen area D is located on the peripheral side of the area where the user's finger touches the display screen 100 , or is located on the peripheral side of the front projection area where the user's finger is close to the display screen 100 and formed on the display screen 100 . Of course, in other embodiments, determining the screen-off area according to the pressing area A may be an area formed by shifting the edge of the pressing area A outward by a preset distance as the screen-off area, that is, the screen-off area. The screen area is larger than the pressing area A. The to-be-lit area may be the entire area on the display screen 100 except the screen-off area, or may be a discontinuous annular area on the display screen 100 on the periphery of the screen-off area.

It can be understood that, because the to-be-lit area is located on the peripheral side of the screen-off area, the bright-screen area D can be located on the peripheral side of the area where the user's finger touches the display screen 100, or the user's finger is close to the display. The screen 100 is formed on the periphery of the orthographic projection area of the display screen 100 . The initial detection signal emitted by the bright screen area D can enter the user's finger from the edge area 02 of the user's finger, thereby facilitating the fingerprint sensing module 40 to receive the fingerprint emitted from the user's finger through the display screen 100. detection signal.

In another embodiment, after the electronic device 200 detects a fingerprint collection request, the display screen 100 of the electronic device 200 is in a bright screen state in the fingerprint identification area. The electronic device 200 determines the area to be turned off and the area D of the display screen 100 to be turned off according to the pressed area A, wherein the area to be turned off at least covers the pressed area A, and the area of the bright screen D is located on the peripheral side of the to-be-off-screen area; after determining the to-be-off-screen area and the bright-screen area D, the electronic device 200 turns off the to-be-off-screen area to form the off-screen area, wherein the off-screen area The area forms the signal transmission area C, and the bright screen area D emits an initial detection signal toward the user's fingerprint.

Specifically, determining the area to be turned off according to the pressing area A may be determining the pressing area A as the area to be turned off, or determining the area formed by shifting the edge of the pressing area A outward as the area to be turned off Screen off area. As an implementation manner, the area to be turned off and the pressing area A overlap. That is, the area to be turned off is an area where the user's finger touches the display screen 100 . The determination of the bright screen area D according to the pressing area A may be to determine the area on the display screen 100 other than the pressing area A as the bright screen area D. As an implementation manner, the bright screen area D may be an annular area surrounding the periphery of the to-be-turned-off screen area. The bright screen area D of the display screen 100 is located on the peripheral side of the screen to be turned off area, and after the screen to be turned off area is turned off to form the screen off area, the bright screen area D is located on the peripheral side of the screen off area, That is, the bright screen area D is located on the peripheral side of the area where the user's finger touches the display screen 100 . Of course, in other embodiments, determining the area to be turned off according to the pressing area A may be an area formed by shifting the edge of the pressing area A outward by a preset distance as the area to be turned off, that is, the area to be turned off. The area to be turned off is larger than the pressing area A. The bright screen area D may be the entire area on the display screen 100 except the area to be turned off, or may be a discontinuous ring on the display screen 100 on the periphery of the area to be turned off. area.

It can be understood that the bright screen area D is located on the peripheral side of the area to be turned off, so that the bright screen area D can be located on the peripheral side of the area where the user's finger touches the display screen 100 . The initial detection signal emitted by the bright screen area D can enter the user's finger from the edge area 02 of the user's finger, thereby facilitating the fingerprint sensing module 40 to receive the fingerprint emitted from the user's finger through the display screen 100. detection signal.

In another embodiment, if the electronic device 200 detects multiple fingerprint collection requests and determines the pressing regions A of multiple fingers of the user, the electronic device 200 determines the display according to the multiple pressing regions A The to-be-lit area and the screen-off area of the screen 100, wherein the screen-off area covers at least the multiple pressing areas A, and the to-be-lit area is located on the peripheral side of the screen-off area; the electronic device 200 is in the After the to-be-lit area and the screen-off area are determined, the to-be-lit area is illuminated to form a bright screen area D, wherein the bright screen area D emits a fingerprint detection signal toward the user's fingerprint.

Specifically, determining the screen-off area according to the multiple pressing areas A may be a graphic process that can include the multiple pressing areas A calculated according to the coordinate positions of the multiple pressing areas A on the display screen area, and determine the graphics processing area as the screen-off area. That is, the screen-off area is an area that may include multiple fingers of the user contacting the display screen 100 . The determination of the to-be-lit area according to the pressed area A may be to determine the area on the display screen 100 other than the screen-off area as the to-be-lit area. As an implementation manner, the to-be-lit area may be an annular area enclosed around the periphery of the screen-off area. The to-be-lit area of the display screen 100 is located on the peripheral side of the off-screen area, and after the to-be-lit area is lit to form the bright-screen area D, the bright-screen area D is located on the peripheral side of the off-screen area , that is, the bright screen area D is located on the peripheral side of the area where the user's finger touches the display screen 100 . Using the screen-off area may include areas where multiple fingers of the user contact the display screen 100 , so that the electronic device 200 only needs to determine a screen-off area and a screen-on area D, that is, on the display screen 100 It is only necessary to turn off a position that can include the contact of multiple fingers of the user, and light a position that can be surrounded by the contact of multiple fingers of the user, so as to realize the fingerprint image collection of multiple fingers of the user, and reduce the bright screen of the display screen 100. area, and increase the off-screen area of the display screen 100 to achieve the effect of energy saving.

Please continue to refer to Figure 1, Figure 2 and Figure 5, the fingerprint processing method includes steps:

104: Receive the fingerprint detection signal through the signal receiving area B, the fingerprint sensing module 40 can collect the specific angle signal a in the fingerprint detection signal and shield the non-specific angle signal b, and form a fingerprint image after processing, wherein the The fingerprint detection signal is formed by the environment signal or/and the initial detection signal emitted by the fingerprint detection signal source entering the user's finger, and is formed by exiting the area where the finger contacts the electronic device, and the specific angle signal is formed by exiting the fingerprint ridge area, The non-specific angle signal is formed by emitting from the fingerprint valley area.

In this embodiment, the initial detection signal enters the finger from the edge area 02 and exits through the contact area 01 to form a fingerprint detection signal, and the fingerprint detection signal includes a specific angle signal a and a non-specific angle signal b. It can be understood that the contact area 01 of the user's fingerprint has a ridge area 011 and a valley area 012, the ridge area 011 is in contact with the display screen 100, and the valley area 012 is in contact with the air. The initial detection signal is transmitted to the ridge region 011 , and is incident into the display screen 100 after being refracted by the interface between the ridge region 011 and the display screen 100 . The initial detection signal is transmitted to the valley area 012 , is refracted by the interface between the valley area 012 and the air, and is then refracted by the interface between the air and the display screen 100 , and then enters the display screen 100 . That is, the initial detection signal is incident on the display screen 100 after being refracted once in the ridge area 011 of the fingerprint, and incident on the display screen 100 after being refracted twice in the valley area 012 of the fingerprint, so it is incident on the display screen 100 from the ridge area 011 The fingerprint detection signal inside has some specific angle signals, while the fingerprint detection signal incident from the valley area 012 to the display screen 100 does not have some specific angle signals, so that the fingerprint detection signal forms a specific angle corresponding to the fingerprint ridge area. Signal a, while a non-specific angle signal b is formed in the valley area of the fingerprint.

In this embodiment, the angle at which the fingerprint detection signal is about to be incident on the display screen 100 is the same as the angle at which it exits the display screen 100, so as to ensure that the specific angle signal a can be incident on the display screen at a specific angle. 100, and exit from the display 100 at a specific angle, that is to ensure that the conduction angle of the specific angle signal a will not change after passing through the display screen 100. Similarly, the conduction angle of the non-specific angle signal b The display screen 100 will not change afterward, so as to facilitate distinguishing the specific angle signal a and the non-specific angle signal b.

Specifically, please refer to FIG. 6 , the display screen 100 includes a cover plate 10 , a display module 20 and a bottom plate 30 . The cover plate 10 is a glass cover plate. The front surface 101 is formed on the side of the cover plate 10 away from the display module 20 . The bottom plate 30 is a bottom package panel. The back surface 102 is formed on the side of the bottom plate 30 away from the display module 20 . The display module 20 can be used as an emission source of the initial detection signal. The display module 20 can emit light as an initial detection signal to enter the user's finger from the edge region 02 . The display module 20 of the display screen 100 may also only realize the function of displaying images, and the display screen 100 may also use ambient light to enter the user's finger from the edge area 02 of the user's fingerprint when the screen is off. Using the same conduction characteristic of the cover plate 10 as the conduction characteristic of the bottom plate 30, the conduction angle of the fingerprint detection signal will not change after passing through the display screen 100, that is, the conduction angle of the specific angle signal a is guaranteed to pass through all the The display screen 100 will not change after the display, and the conduction angle of the non-specific angle signal b will not change after passing through the display screen 100 . Since the initial detection signal is an optical signal, the refractive index of the cover plate 10 is set to be the same as the refractive index of the bottom plate 30 to satisfy the conduction specificity of the cover plate 10 and the conduction specificity of the bottom plate 30 . Require.

In this embodiment, the fingerprint sensor module 40 receives the specific angle signal a and the non-specific angle signal b. In order to distinguish the specific angle signal a and the non-specific angle signal b, the fingerprint sensing module 40 screens the specific angle signal a to pass by setting a signal screening device, and shields the non-specific angle signal b. The fingerprint sensing module 40 only collects the specific angle signal a screened by the signal screening device, so that the distribution information of the ridge area 011 of the user's fingerprint can be accurately identified, and then processed to form a fingerprint image to realize fingerprint identification.

As an embodiment, please refer to FIG. 7 , the fingerprint sensing module 40 includes a fingerprint sensing chip 42 and a collimating mirror 41 stacked on the fingerprint sensing chip 42 , and the collimating mirror 41 only allows the The specific angle signal in the fingerprint detection signal passes through, and is then transmitted to the fingerprint sensor chip 42 . Since the fingerprint detection signal is an optical signal, a light-specific angle conduction channel is set in the collimating mirror 41, so that the collimating mirror 41 can screen the specific angle signal a, and pass the non-specific angle signal b. Blocking does not pass.

The fingerprint sensor chip 42 realizes the sensing of optical signals by arranging multiple arrays of photoelectric sensing elements. The fingerprint sensor chip 42 determines the distribution position of the signal receiving area B according to the pressing area A, so as to collect the specific angle signal a in the signal receiving area B, so as to achieve the effect of energy saving and accurate identification .

The fingerprint sensor chip 42 allows the specific angle signal a to pass through the collimating mirror 41 and shields the non-specific angle signal b, so that only the specific angle signal a is received, and the fingerprint sensor chip 42 The pattern of the ridge area 011 forming the fingerprint can be processed according to the distribution information of the specific angle signal a, so as to realize the processing to form the fingerprint pattern. Since the fingerprint sensing module 40 only collects the specific angle signal a to realize fingerprint identification by collecting only the signal of the fingerprint ridge region, the traditional method of comparing the signal reception amount of the fingerprint ridge region with the fingerprint valley region can be avoided. Identify fingerprints, so that in the case that the user's finger cannot effectively contact the display screen 100 (for example, the user's finger is dry, and the ridge area of the finger is in poor contact with the display screen), as long as there is a specific angle signal a of the fingerprint ridge area through the The display screen 100 can realize fingerprint identification, improve the accuracy of fingerprint identification, and can meet various usage environments.

For example, in the case where the user performs fingerprint identification with dry fingers, in the fingerprint processing method of the present application, the signal variation of the ridge area 011 of the fingerprint is 2%, and the signal variation of the valley area 012 of the fingerprint is 0% (setting the fingerprint The sensing module 40 shields the non-specific angle signal b, that is, shields the signal in the fingerprint valley area, so that the signal variation in the fingerprint valley area is always 0%). However, in the fingerprint processing method of the prior art, the signal reception variation of the ridge area and the valley area of the fingerprint is 4% and 3%, respectively. That is, in the fingerprint processing method of the present application, when fingerprint identification is performed on the user's dry finger, there is an obvious difference in the signal reception variation between the fingerprint ridge area and the valley area, so that the user's fingerprint can be more effectively identified.

In the case of sunlight irradiation, in the prior art, it is necessary to filter the sunlight, and then collect the ridge area signal and the valley area signal of the fingerprint, so as to prevent the sunlight from interfering with the ridge area signal and the valley area signal of the fingerprint and affecting the fingerprint recognition result. In the fingerprint processing method of the present application, because the sunlight can be effectively used as the initial signal source, the interference of the sunlight on the collection of fingerprint detection signals can be avoided. In the case of strong sunlight irradiation, in the fingerprint processing method of the present application, the signal changes of the fingerprint ridge area 011 and the valley area 012 are 48% and 0%, respectively. However, in the fingerprint processing method of the prior art, the signal reception variation of the ridge area and the valley area of the fingerprint is 44% and 48%, respectively. That is, in the fingerprint processing method of the present application, when the user's finger is subjected to fingerprint identification under strong sunlight, there are obvious differences in the signal reception variation between the fingerprint ridge area and the valley area, so that the user's fingerprint can be more effectively identified.

Please refer to FIG. 8 , the present application further provides an electronic device 200 , the electronic device 200 can use the above fingerprint processing method to identify fingerprints. The electronic device 200 includes a display screen 100 and a fingerprint sensor module 40. The display screen 100 has a front face 101 facing the user and a back face 102 opposite to the front face 101. The fingerprint sensor module 40 is fixed to the user. On the back of the display screen 100, the fingerprint sensing module 40 is used to receive the fingerprint detection signal emitted by the user's fingerprint, collect the specific angle signal in the fingerprint detection signal and shield the non-specific angle signal, and form a fingerprint image after processing, wherein , the fingerprint detection signal is formed by the environmental signal or/and the initial detection signal emitted by the fingerprint detection signal source entering the user's finger and exiting through the area where the finger is in contact with the electronic device, and the specific angle signal is emitted from the fingerprint ridge area. The non-specific angle signal is formed by emitting from the fingerprint valley area.

A display screen 100, the display screen 100 includes a cover plate 10, a display module 20 and a bottom plate 30 that are laminated in sequence. The cover plate 10 conducts the fingerprint detection signal and transmits it to the bottom plate 30 through the display module 20 . The bottom plate 30 is used for outputting the fingerprint detection signal to the fingerprint sensing module 40 . The signal conduction characteristics of the cover plate 10 are the same as the signal conduction characteristics of the base plate 30, so as to ensure that the conduction angle of the incident to the display screen 100 is consistent with the conduction angle of the display screen 100 after exiting, so as to facilitate the The specific angle signal a in the fingerprint detection signal is collected to effectively and accurately identify the ridge area distribution information of the fingerprint.

It can be understood that the display screen 100 can be applied to an electronic device, and the electronic device can be a device such as a mobile phone, a tablet computer, or a notebook computer. A fingerprint sensor module 40 is provided on the side of the bottom plate 30 of the display screen 100 away from the display module 20 , and the fingerprint sensor module 40 can be used to collect only a specific angle signal in the fingerprint detection signal to identify user fingerprint information.

In this embodiment, the cover plate 10 is composed of a glass plate member 12 and an ink layer 13 coated on the glass plate member 12 . The ink layer 13 is coated on the edge of the glass plate 12 . The side of the glass plate 12 coated with the ink layer 13 faces the display module 20 . The ink layer 13 constitutes a non-transparent part of the cover plate 10 in the region where the glass plate 12 is located. The area of the glass plate 12 not covered by the ink layer 13 constitutes the light-transmitting part of the cover plate 10 . The light-transmitting portion of the glass plate 12 can be opposite to the fingerprint sensing module 40 , so that the fingerprint sensing module 40 can receive the fingerprint detection signal through the light-transmitting portion of the glass plate 12 . A touch layer 121 can also be integrated in the glass plate 12, so that the touch layer 121 can be used to touch the pressing area A of the user's fingerprint, and the position and size of the signal receiving area can be determined according to the position and size of the pressing area A. In order to facilitate the collection of fingerprint detection signals in the signal receiving area. The signal receiving area is an area on the fingerprint sensing module 40 where a specific angle signal in the fingerprint detection signal can be collected. Of course, in other embodiments, an ultrasonic wave emission source can also be used to transmit ultrasonic signals to the user's fingerprints, the cover plate 10 and the bottom plate 30 can be ultra-dense media that conduct ultrasonic waves, and the fingerprint sensor module 40 can transmit ultrasonic waves through ultrasonic waves. The signal identifies the user's fingerprint information, or uses an infrared light source to emit infrared light signals to the user's fingerprints. The cover plate 10 and the bottom plate 30 can also be light-guiding media that conduct infrared light. The fingerprint sensing module 40 can pass infrared light. Identify user fingerprint information.

In this embodiment, the display module 20 has a display area 21 and a non-display area 22 connected to the display area 21 . The display area 21 is substantially aligned with the area of the glass plate 12 not covered by the ink layer 13 . The non-display area 22 is substantially blocked by the ink layer 13 . The display module 20 can emit visible light in the display area 21 to provide a display screen, and can also use the visible light to form a fingerprint detection signal for detecting a user's fingerprint. Of course, the visible light in the ambient light can also be used to form the initial detection signal for detecting the user's fingerprint. The display module 20 may form a lighting area capable of emitting visible light in the display area 21 according to the pressing area A of the user's fingerprint.

In an implementable manner, in the screen-off state, the partial area of the display module 20 surrounding the pressing area A is turned on, and the area directly opposite to the pressing area A is kept off. state to form the lighted area D. In one possible embodiment, in the bright screen state, by turning off the area of the display module 20 that is directly opposite the pressing area A, and leaving the area surrounding the pressing area A in the lit state. form.

In this embodiment, the bottom plate 30 is substantially parallel to the cover plate 10 . The bottom plate 30 is a glass plate, so that the refractive index of the bottom plate 30 is the same as that of the cover plate 10 . The bottom plate 30 may be overlapped with a part of the light-transmitting area of the cover plate 10, so that the display screen 100 only has a fingerprint detection signal conduction function in the area opposite to the bottom plate 30, and passes through the fingerprint sensing mode. The group 40 realizes fingerprint collection only in the area opposite to the base plate 30 .

The bottom plate 30 can also be completely overlapped with the light-transmitting area of the cover plate 10 , so that the display screen 100 has the function of fingerprint detection signal conduction in the entire area of the display area 21 , and the fingerprint sensor module is passed through the display screen 100 . 40 The specific angle signal in the fingerprint detection signal can be collected at any position in the whole area of the display area 21 .

In one embodiment, please refer to FIG. 9 , the display module 20 includes a cathode layer 23 , an organic electroluminescence layer 24 and an anode layer 25 which are laminated in sequence, and the cathode layer 23 is attached to the cover plate 10 . The bottom plate 30 is attached to the anode layer 25 . The bottom plate 30 can be used as a substrate of the display module 20 to facilitate the formation of the anode layer 25 on the bottom plate 30 . The organic electroluminescent layer 24 can form a signal conducting area in a region opposite to the second conducting portion 31 , and form a partially lit light emitting area around the signal conducting area. When the user touches the front surface 101 of the display screen 100 , the pressing area A of the user's fingerprint can be determined through the touch layer 121 . According to the pressing region A, the organic electroluminescent layer 24 may form a screen-off region in a region directly opposite to the pressing region A. The off-screen area can detect signals through fingerprints emitted from the cover. The off-screen area conducts the fingerprint detection signal to the bottom plate 30 . After the touch layer 121 detects the pressing area A, the organic electroluminescent layer 24 can form a ring-shaped lighting area surrounding the periphery of the screen-off area according to the pressing area A. The ring-shaped lighting area can emit fingerprint detection light to the edge area 02 of the user's fingerprint, the fingerprint detection light passes through the cover plate 10 and enters the user's fingerprint, and emerges through the ridge area 011 and the valley area 012 to form a fingerprint detection signal. . The fingerprint detection signal sequentially passes through the cover plate 10 , the screen-off area of the display module 20 and the bottom plate 30 to the fingerprint sensing module 40 , and finally realizes the identification of the user's fingerprint image. Of course, in other embodiments, the organic electroluminescent layer 24 may also form a plurality of bright spot areas surrounded by equidistant intervals on the periphery of the screen-off area according to the pressing area A, using a plurality of equidistant intervals The arranged lighted areas emit fingerprint detection light to the user's fingerprint.

In another embodiment, please refer to FIG. 10 , the display module 20 includes a substrate 25 attached to the anode layer 25 away from the organic electroluminescence layer 24 , and the bottom plate 30 is attached to the substrate 25 is on the side facing away from the anode layer 25 . The bottom plate 30 is separated from the substrate 25 so that the bottom plate 30 can be opposed to a part of the display area of the display module 20 , thereby reducing the manufacturing cost of the bottom plate 30 .

In another embodiment, please refer to FIG. 11 , the display module 20 includes a liquid crystal assembly 50 and a backlight assembly 60 , and the liquid crystal assembly 50 is attached to the cover plate 10 . The backlight assembly 60 is attached to the liquid crystal assembly 50 , and the backlight assembly 60 is provided with a hollow portion 61 . The bottom plate 30 is attached to the backlight assembly 60 . The fingerprint sensing module 40 is directly opposite to the hollow portion 61 . The liquid crystal assembly 50 includes an upper polarizer 51 , a color filter 52 , a liquid crystal layer 53 , an electrode array layer 54 and a lower polarizer 55 that are laminated in sequence. The upper polarizer 51 is attached to the cover plate 10 . The backlight assembly 60 includes a light guide plate 62 attached to the lower polarizer 55 , a backlight plate 63 attached to the side of the light guide plate 62 away from the liquid crystal assembly 50 , and a light guide plate 62 fixed on the edge of the light guide plate 62 . Light source 64 . The light source 64 can light the light guide plate 62 , and the hollow portion 61 is disposed on the backlight plate 63 . When the user's fingerprint touches the cover plate 10 and faces away from the display module 20 . The pressing area A of the user's fingerprint can be determined through the touch layer 121 . The electrode array layer 54 can drive the liquid crystal layer 53 in a region facing the pressing region A according to the pressing region A to form a screen-off region. The screen-off region and the hollow portion 61 are directly opposite, so that the screen-off region and the hollow portion 61 can transmit fingerprint detection signals emitted from the cover plate 10 . The off-screen area conducts the fingerprint detection signal to the bottom plate 30 . After the touch layer 121 detects the pressing area A, the electrode array layer 54 can form a ring-shaped lighting area surrounding the periphery of the screen-off area according to the pressing area A. The annular lighting area is combined with the upper polarizer 51, the lower polarizer 55, the light guide plate 62 and the backlight plate 63 to form an aperture that can emit light, and the aperture can emit fingerprint detection light to the edge area 02 of the user's finger ; The fingerprint detection light passes through the cover plate 10 and is incident on the user's finger. The fingerprint detection signal is transmitted to the fingerprint sensing module 40 through the cover plate 10 , the screen-off area of the display module 20 and the bottom plate 30 in sequence, and finally realizes the identification of the user's fingerprint image.

In this embodiment, the display module 20 of the display screen 100 serves as the fingerprint detection signal source of the fingerprint sensor module 40 . The display module 20 can emit fingerprint detection light at the edge of the user's fingerprint, so as to facilitate the fingerprint detection signal to enter the user's finger, and make the fingerprint detection signal form a specific angle signal incident on the cover plate 10 after passing through the ridge area, and the fingerprint The detection signal cannot form a specific angle signal in the valley area, so as to identify the user's fingerprint light. The display module 20 of the display screen 100 may also only implement the function of displaying images, and the display screen 100 may also use external light to enter the user's finger from the edge of the user's fingerprint when the screen is off to realize fingerprint recognition.

In this embodiment, the fingerprint sensing module 40 includes a collimating mirror 41 and a fingerprint sensing chip 42 . The collimating mirror 41 is used for allowing the specific angle signal in the fingerprint detection signal to pass through and shielding the non-specific angle signal, so that the fingerprint sensor chip 42 can collect the information of the ridge area 011 of the fingerprint. The fingerprint sensor chip 42 is fixed on the side of the collimating mirror 41 away from the bottom plate 30 . The collimating mirror 41 completely covers the sensing area of the fingerprint sensor chip 42 . The collimating mirror 41 may be attached to the bottom plate 30 , or may be spaced from the bottom plate 30 . The collimating mirror 41 and the fingerprint sensor chip 42 may be attached to each other, or there may be a distance between the collimator mirror 41 and the fingerprint sensor chip 42 .

In another embodiment, please refer to FIG. 12 , the electronic device 200 further includes a fingerprint detection signal source 70 fixed on the side of the display screen 100 , and the fingerprint detection signal source 70 may face the edge area 02 of the user's finger The initial detection signal is emitted, so that the initial detection signal is incident on the cover plate 10 through the contact area 01 of the finger to form a fingerprint detection signal. The fingerprint detection signal source 70 can transmit ultrasonic signals, infrared light signals, or electromagnetic signals. The fingerprint detection signal source 70 may be located at the side of the display screen 100 . Using the fingerprint detection signal source 70 to transmit the initial detection signal can improve the stability of the initial detection signal, and avoid using the display module 20 of the display screen 100 to provide the initial detection signal, thereby improving the service life of the display screen 100 .

In this embodiment, please refer to FIG. 13 , the electronic device 200 further includes a back case 80 and a main board 90 which are covered with the display screen 100 , and the fingerprint sensing module 40 and the main board 90 are fixed on the between the back shell 80 and the display screen 100 . The fingerprint sensing module 40 is electrically connected to the motherboard 90 . The mainboard 90 receives a specific angle signal in the fingerprint detection signal collected by the fingerprint sensing module 40, and processes to form a fingerprint image. The mainboard 90 is also electrically connected to the display screen 100 to control the display screen 100 to display images, and to control some areas of the display screen 100 to turn off the screen and light up some areas.

Embodiments of the present application further provide a computer storage medium, wherein the computer storage medium stores a computer program for electronic data exchange, and the computer program causes the computer to execute part or all of the steps of any method described in the above method embodiments , the above computer may be an electronic device.

Embodiments of the present application further provide a computer program product, where the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute any one of the method embodiments described above. some or all of the steps of the method. The computer program product may be a software installation package, and the computer may be an electronic device.

It should be noted that, for the sake of simple description, the foregoing method embodiments are all expressed as a series of action combinations, but those skilled in the art should know that the present application is not limited by the described action sequence. Because in accordance with the present application, certain steps may be performed in other orders or concurrently. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present application.

In the above-mentioned embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the device embodiments described above are only illustrative. For example, the division of the above-mentioned units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated. to another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical or other forms.

The units described above as separate components may or may not be physically separated, and components shown as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.

The above-mentioned integrated units, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable memory. 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 all or part of the technical solution, and the computer software product is stored in a memory, Several instructions are included 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 above-mentioned methods in the various embodiments of the present application. The aforementioned memory includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and other media that can store program codes.

Those skilled in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable memory, and the memory can include: a flash disk , Read-only memory (English: Read-Only Memory, referred to as: ROM), random access device (English: Random Access Memory, referred to as: RAM), magnetic disk or optical disk, etc.

The embodiments of the present application have been introduced in detail above, and the principles and implementations of the present application are described in this paper by using specific examples. The descriptions of the above embodiments are only used to help understand the methods and core ideas of the present application; at the same time, for Persons of ordinary skill in the art, based on the idea of the present application, will have changes in the specific implementation manner and application scope. In summary, the contents of this specification should not be construed as limitations on the present application.

To sum up, although the present application has disclosed the above-mentioned preferred embodiments, the preferred embodiments are not intended to limit the present application, and those of ordinary skill in the field, without departing from the spirit and scope of the present application, can Various changes and modifications are made, so the scope of protection of the present application is subject to the scope defined by the claims.

The above are the preferred embodiments of the present application. It should be pointed out that for those skilled in the art, without departing from the principles of the present application, several improvements and modifications can also be made, and these improvements and modifications may also be regarded as The protection scope of this application.

Claims (20)

1. a fingerprint processing method, is characterized in that, is applied to electronic equipment, and described electronic equipment comprises fingerprint sensor module, and described fingerprint processing method comprises: When detecting a fingerprint collection request, determine the pressing area of the user's finger; Determine the signal receiving area of the fingerprint sensor module according to the pressing area; The fingerprint detection signal is received through the signal receiving area, and the fingerprint sensing module can collect the specific angle signal in the fingerprint detection signal and shield the non-specific angle signal, and form a fingerprint image after processing, wherein the fingerprint detection signal is determined by the environment After the signal or/and the initial detection signal emitted by the fingerprint detection signal source enters the user's finger, it is formed through the area where the finger contacts the electronic device, and the specific angle signal is formed by the fingerprint ridge area. It is formed by exiting from the fingerprint valley area. 2. The fingerprint processing method according to claim 1, wherein the electronic device further comprises a display screen, the fingerprint sensing module is stacked on one side of the display screen, and the display screen comprises a cover plate and a The signal conduction characteristic of the cover plate is the same as the signal conduction characteristic of the base plate, so that the angle at which the signal of the specific angle is about to be incident on the cover plate and the angle at which it exits from the base plate same. 3 . The fingerprint processing method according to claim 2 , wherein the fingerprint detection signal is an optical signal, and the refractive index of the cover plate is the same as that of the bottom plate. 4 . 4. The fingerprint processing method according to claim 3, wherein the fingerprint sensing module comprises a fingerprint sensing chip and a collimating mirror laminated on the fingerprint sensing chip, and the collimating mirror only allows The specific angle signal in the fingerprint detection signal passes through and is then transmitted to the fingerprint sensor chip. 5 . The fingerprint processing method according to claim 3 , wherein, before the step of receiving the fingerprint detection signal through the signal receiving area, the display screen is in a fully screen-off state, and the user's finger is in contact with the display screen. 6 . The surroundings of the part receive ambient light. 6 . The fingerprint processing method according to claim 3 , wherein, before the step of receiving the fingerprint detection signal through the signal receiving area, a screen-off area of the display screen is determined according to the pressing area, and the off-screen area of the display screen is determined according to the pressing area. 7 . The screen area covers at least the pressing area, and the screen-off area can detect signals through the fingerprint. 7 . The fingerprint processing method according to claim 6 , wherein the step of determining the screen-off area of the display screen according to the pressing area comprises: 8 . Determine the to-be-lit area and the screen-off area of the display screen according to the pressing area, wherein the to-be-lit area is located on the peripheral side of the screen-off area; Lighting the to-be-lit area to form a bright screen area that can emit detection light toward the user's finger, the light emitted from the bright screen area enters the finger from the periphery of the part where the finger touches the display screen, and then emerges from the fingerprint to form a fingerprint Detect light. 8. The fingerprint processing method according to claim 6, wherein the step of determining the screen-off area of the display screen according to the pressing area comprises: Determine the to-be-off-screen area and the bright-screen area of the display screen according to the pressed area, wherein the to-be-off-screen area covers at least the pressed area, and the bright-screen area is located on the periphery of the to-be-off-screen area; The area to be turned off is turned off to form a screen-off area, and the light emitted from the bright-screen area enters the finger from the periphery of the part where the finger touches the display screen, and then exits through the fingerprint to form a fingerprint detection light. 9. An electronic device, characterized in that the electronic device comprises a display screen and a fingerprint sensing module, the display screen has a front face facing a user and a back face opposite to the front face, the fingerprint sensing module Fixed on the back of the display screen, the fingerprint sensor module is used to receive the fingerprint detection signal emitted by the user's fingerprint, and can collect the specific angle signal in the fingerprint detection signal and shield the non-specific angle signal, and form a fingerprint image after processing. Wherein, the fingerprint detection signal is formed by the environmental signal or/and the initial detection signal emitted by the fingerprint detection signal source entering the user's finger and exiting through the area where the finger contacts the electronic device, and the specific angle signal is emitted from the fingerprint ridge area. However, the non-specific angle signal is formed by emitting from the fingerprint valley area. 10 . The electronic device according to claim 9 , wherein the display screen comprises a cover plate and a bottom plate disposed opposite to the cover plate, and the signal conduction characteristics of the cover plate are the same as the signal conduction characteristics of the bottom plate. 11 . , so that the angle at which the specific angle signal is about to be incident on the cover plate is the same as the angle at which it exits from the base plate. 11 . The electronic device according to claim 10 , wherein the fingerprint sensing module is a light sensing module, the fingerprint detection signal is an optical signal, and the refractive index of the cover plate is the same as that of the bottom plate. 12 . The refractive index is the same. 12 . The electronic device according to claim 11 , wherein the fingerprint sensing module comprises a signal screening device and a fingerprint sensor chip, and the signal screening device is fixed on a side of the base plate away from the cover plate. 13 . , in order to allow only the specific angle signal to pass through, and the fingerprint sensor chip is fixed on the side of the signal screening device away from the base plate to collect the specific angle signal. 13. The electronic device according to claim 12, wherein the signal screening device is a collimating mirror. 14. The electronic device according to any one of claims 9 to 13, wherein the display screen can form a screen-off area in an area directly opposite to the fingerprint sensor module, and the display screen can be turned off when the screen is turned off. A light-emitting area is formed around the area to emit light to the user's finger by using the light-emitting area. 15. The electronic device according to any one of claims 9 to 13, wherein the display screen is in a fully screen-off state, and the fingerprint detection signal is generated by ambient light through the contact part of the user's finger and the display screen. The surrounding is incident into the finger, and is formed through the contact part of the finger and the display screen. 16. The electronic device according to any one of claims 9 to 13, wherein the electronic device further comprises a fingerprint detection signal source, and the fingerprint detection signal source is fixed on the peripheral side of the display screen for An initial detection signal is emitted to the user's finger. 17 . The electronic device according to claim 9 , wherein the fingerprint sensing module and the display screen are completely coincident. 18 . 18. The electronic device according to any one of claims 9 to 13, wherein the display screen is provided with a touch layer, and the touch layer is used to sense a pressing area where a user's fingerprint contacts the display screen , the fingerprint sensing module can determine a signal receiving area according to the pressing area, so that the signal receiving area can receive the fingerprint detection signal. 19 . The electronic device according to claim 10 , wherein the display screen further comprises a liquid crystal assembly and a backlight assembly, the liquid crystal assembly is attached to the cover plate, and the backlight assembly is attached to the cover plate. 20 . For the liquid crystal assembly, the bottom plate is attached to the backlight assembly, the backlight assembly is provided with a hollow portion, and the fingerprint sensing module is directly opposite to the hollow portion. 20. The electronic device according to any one of claims 10 to 13, wherein the display screen further comprises a cathode layer, an organic electroluminescence layer and an anode layer that are laminated in sequence, and the cathode layer is laminated on the The cover plate and the bottom plate are attached to the anode layer.