CN110298324B - Electronic device and control method of electronic device - Google Patents
Electronic device and control method of electronic device Download PDFInfo
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- CN110298324B CN110298324B CN201910591749.0A CN201910591749A CN110298324B CN 110298324 B CN110298324 B CN 110298324B CN 201910591749 A CN201910591749 A CN 201910591749A CN 110298324 B CN110298324 B CN 110298324B
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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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Abstract
The application provides an electronic device, including: the light guide piece comprises a main body part, an annular bulge convexly arranged on the main body part and a groove surrounded by the annular bulge; the fingerprint identification module comprises a flexible circuit board and a fingerprint identification sensor arranged on the flexible circuit board, the flexible circuit board is arranged opposite to the main body part, and at least part of the fingerprint identification sensor is arranged in the groove; and the at least one first light-emitting unit is arranged on the flexible circuit board, emits light towards the annular protrusion, the light is transmitted to the main body part through the annular protrusion, a surface light source is formed on the surface of the main body part, and the light of the surface light source is reflected by a fingerprint surface and then received by the fingerprint identification sensor so as to collect fingerprint signals. The application also provides a control method of the electronic equipment. The fingerprint identification efficiency of the electronic equipment is higher.
Description
Technical Field
The present disclosure relates to the field of electronic technologies, and in particular, to an electronic device and a control method of the electronic device.
Background
Fingerprint identification is widely applied to electronic devices such as mobile phones, however, in the optical fingerprint identification technology, the light irradiated on the fingerprint surface is not uniform, which may cause inaccurate fingerprint identification result or low identification efficiency.
Disclosure of Invention
The application provides electronic equipment with high fingerprint identification efficiency and a control method of the electronic equipment.
The application provides a fingerprint module, include: the light guide piece comprises a main body part, an annular bulge convexly arranged on the main body part and a groove surrounded by the annular bulge; the fingerprint identification module comprises a flexible circuit board and a fingerprint identification sensor arranged on the flexible circuit board, the flexible circuit board is arranged opposite to the main body part, and at least part of the fingerprint identification sensor is arranged in the groove; and the at least one first light-emitting unit is arranged on the flexible circuit board, emits light towards the annular protrusion, the light is transmitted to the main body part through the annular protrusion, a surface light source is formed on the surface of the main body part, and the light of the surface light source is reflected by a fingerprint surface and then received by the fingerprint identification sensor so as to collect fingerprint signals.
The application provides an electronic device, which comprises a fingerprint identification module, a light guide piece, at least one first light emitting unit, a touch sensor and a processor, wherein the light guide piece is covered on the fingerprint identification module, the at least one first light emitting unit emits light towards the light guide piece, the touch sensor is arranged with the light guide piece, the touch sensor is used for generating a touch signal when detecting finger touch, and the processor is electrically connected with the at least one first light emitting unit and the fingerprint identification module; the control method comprises the following steps: the processor receives a touch signal emitted by the touch sensor, and controls the at least one first light-emitting unit to emit light and the fingerprint identification module to acquire a fingerprint image according to the touch signal.
Through set up leaded light spare on fingerprint identification module and first luminescence unit, so that the light that makes first luminescence unit transmission jets out through leaded light spare, and the light that first luminescence unit transmission forms the even area source of intensity after the effect of leaded light spare, so that the light of even intensity can be incided to the fingerprint face, avoid optics fingerprint collection's in-process, the light intensity of local fingerprint face is too high or the light intensity of local fingerprint face is not enough and causes the fingerprint signal distortion of gathering, therefore, the electronic equipment's that this embodiment provided fingerprint collection precision and efficiency are higher. Moreover, in locating the recess with fingerprint identification sensor, can avoid the outer moisture invasion and attack fingerprint identification sensor of fingerprint module, improve the waterproof nature of fingerprint module, improve electronic equipment's reliability.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Fig. 2 is a schematic partial cross-sectional view of the first electronic device provided in fig. 1 taken along line a-a.
Fig. 3 is a schematic partial cross-sectional view of the second electronic device provided in fig. 1 taken along line a-a.
Fig. 4 is a schematic partial cross-sectional view of the third electronic device provided in fig. 1 taken along line a-a.
Fig. 5 is a schematic partial cross-sectional view of a fourth electronic device provided in fig. 1 taken along line a-a.
Fig. 6 is a schematic partial cross-sectional view of the fifth electronic device provided in fig. 1 taken along line a-a.
Fig. 7 is a top view of the fingerprint module provided in fig. 2.
Fig. 8 is a schematic partial cross-sectional view of the sixth electronic device provided in fig. 1 taken along line a-a.
Fig. 9 is a schematic partial cross-sectional view of the seventh electronic device provided in fig. 1 taken along line a-a.
Fig. 10 is a schematic partial cross-sectional view of the eighth electronic device provided in fig. 1 taken along line a-a.
Fig. 11 is a schematic partial cross-sectional view of the ninth electronic device provided in fig. 1 taken along line a-a.
Fig. 12 is a schematic partial cross-sectional view of the tenth electronic device provided in fig. 1 taken along line a-a.
Fig. 13 is a flowchart of a control method of an electronic device according to an embodiment of the present application.
Fig. 14 is a control circuit diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the following embodiments may be combined with each other.
Referring to fig. 1, fig. 1 is a first perspective view of an electronic device 100. The electronic device 100 may be a smart device having a fingerprint module, such as a phone, a television, a tablet computer, a mobile phone, a camera, a personal computer, a notebook computer, a vehicle-mounted device, and a wearable device. Taking the electronic device 100 as a mobile phone as an example, for convenience of description, the electronic device 100 is defined with reference to the first viewing angle, the width direction of the electronic device 100 is defined as the X direction, the length direction of the electronic device 100 is defined as the Y direction, and the thickness direction of the electronic device 100 is defined as the Z direction.
Referring to fig. 2, an electronic device 100 is provided according to an embodiment of the present application. The electronic device 100 includes a light guide 1, a fingerprint identification module 22, and at least one first light emitting unit 3. The light guide member 1 includes a main body 11, an annular protrusion 12 protruding from the main body 11, and a groove 13 surrounded by the annular protrusion 12. Fingerprint identification module 22 includes flexible circuit board 21 and locates fingerprint identification sensor 22 on the flexible circuit board 21. The flexible circuit board 21 is disposed opposite to the main body portion 11. The fingerprint sensor 22 is at least partially disposed within the recess 13. At least one first light emitting unit 3 is provided on the flexible circuit board 21. The at least one first light emitting unit 3 is arranged opposite to the annular protrusion 12. The at least one first light emitting unit 3 emits light toward the annular protrusion 12. The light is transmitted to the main body part 11 through the annular protrusion 12, and a surface light source with uniform intensity is formed on the surface of the main body part 11, and the light of the surface light source is reflected by the fingerprint surface and then received by the fingerprint identification sensor 22, so as to collect a fingerprint signal.
Through set up leaded light 1 on fingerprint identification module 22 and first luminescence unit 3, so that the light of at least one first luminescence unit 3 transmission jets out through leaded light 1, and the light of at least one first luminescence unit 3 transmission forms the even area source of intensity after the effect of leaded light 1, so that the light of fingerprint face can the incident uniform intensity, avoid the in-process of optics fingerprint collection, the light intensity of local fingerprint face is too high or the light intensity of local fingerprint face is not enough and causes the fingerprint signal distortion of collection, consequently, the fingerprint collection precision and the efficiency of the electronic equipment 100 that this embodiment provided are higher. Moreover, locate the fingerprint identification sensor 22 in the recess 13, can avoid the moisture invasion and attack fingerprint identification sensor 22 outside the fingerprint module 10, improve the waterproof nature of fingerprint module 10, improve electronic equipment 100's reliability.
Specifically, the light guide member 1 may be an optical acrylic sheet. The light guide 1 can convert a point light source emitted from the first light emitting unit 3 into a planar surface. Specifically, the main body 11 has a substantially flat plate shape. The top view shape of the body portion 11 includes, but is not limited to, circular, oval, rectangular, triangular, diamond, etc. The shape of the annular projection 12 is adapted to the shape of the body portion 11. The case where the main body 11 is circular will be described. The main body 11 is in the shape of a circular sheet, the annular protrusion 12 is in the shape of a cylinder, and a groove 13 is formed between the cylindrical inner cavity and the main body 11.
The fingerprint sensor 22 is disposed in the recess 13 with the fingerprint acquisition surface of the fingerprint sensor 22 facing the main body 11. The first light emitting unit 3 emits light toward the surface of the annular protrusion 12 away from the main body 11, so that light emitted by the first light emitting unit 3 is transmitted to the main body 11 along the arc-shaped protrusion and is emitted from the top surface of the main body 11. Wherein the top surface of the main body 11 is the surface of the main body 11 facing away from the fingerprint sensor 22. The top surface of the main body 11 is also the finger touch surface of the fingerprint module 10 for finger touch. The top surface of the main body 11 may be a concave curved surface or a convex curved surface so that the user can recognize the fingerprint sensing area well when touching.
The electronic device 100 includes a housing 20. The housing 20 is provided with a through hole. At least part of the main body part 11 and the annular bulge 12 are arranged in the through hole, and the peripheral surfaces of the main body part 11 and the annular bulge 12 are connected to the inner wall of the through hole in a sealing manner. The top surface of the body portion 11 may be flush with the outer surface of the housing 20. The case 20 may be a front case or a battery case. It is understood that the housing 20 may be a display screen, and the through-hole is located in a non-display area portion of the display screen.
Specifically, referring to fig. 2, the fingerprint sensor 22 is electrically connected to the flexible circuit board 21 through a metal wire. The fingerprint sensor 22 is packaged on the flexible circuit board 21 through a packaging layer 23. The first light emitting unit 3 is electrically connected to the flexible circuit board 21, and the first light emitting unit 3 is disposed outside the package layer 23.
Specifically, referring to fig. 2, the first light emitting unit 3 is attached to the flexible circuit board 21. The first light emitting unit 3 may be mounted on the flexible circuit board 21 by surface mount technology.
It is understood that the electronic device 100 further comprises a processor (not shown). The fingerprint identification sensor 22 is used for collecting fingerprint information when a user touches the fingerprint identification sensor, and the processor performs feature extraction and feature comparison on the fingerprint information to determine whether the fingerprint information is matched with pre-stored fingerprint information. The flexible circuit board 21 is used for carrying the fingerprint sensor 22 and other functional chips, for example, a power chip is further arranged on the flexible circuit board 21 for supplying power to the fingerprint sensor 22. The fingerprint sensor 22 may be formed by BGA (Ball Grid Array) technology packaging or LGA (Land Grid Array) technology packaging.
Referring to fig. 2, the fingerprint sensor 22 is connected to the processor through the flexible circuit board 21. In particular, the fingerprint recognition sensor 22 comprises a first surface 221 and a second surface 222, the first surface 221 being configured to sense a fingerprint of a user's finger to generate an analog signal. In this embodiment, the second surface 222 is used for fixed soldering on the flexible circuit board 21. It will be appreciated that in other embodiments, the fingerprint sensor 22 may be connected to the flexible circuit board 21 in other ways. The fingerprint sensor 22 may be a sensing circuit or chip.
Specifically, referring to fig. 2, the encapsulation layer 23 is made of a transparent material or a light guide material. For example, it may be a transparent EMC (epoxy) encapsulating material. The package layer 23 is made of a transparent material or a light guide material, so that light of the first light emitting unit 3 in the fingerprint module 10 can penetrate through the package layer 23 as much as possible, and the light emitting effect of the first light emitting unit 3 is improved.
Referring to fig. 2, the fingerprint identification module 2 and the inner wall of the groove 13 can be bonded by transparent or translucent optical glue to improve the connection strength between the fingerprint identification module 2 and the light guide member 1, and the light emitting effect of the first light emitting unit 3 is not affected.
In other embodiments, the first light emitting unit 3 and the fingerprint sensor 22 may be packaged together on the flexible circuit board 21, and the first light emitting unit 3 and the fingerprint sensor 22 are integrally formed in the groove 13.
It can be understood that, when triggering fingerprint identification, at least one first light-emitting unit 3 is luminous to make main part 11 form the area light source, carry out even irradiation to each region that contacts with main part 11 or is close to mutually on the fingerprint face, so that fingerprint line that intensity is even is gathered to fingerprint identification sensor 22, improves fingerprint identification efficiency.
It can be understood that the first light-emitting unit 3 may emit light in other scenes where fingerprint identification is not performed, for example, the first light-emitting unit 3 may be triggered to emit light in scenes where the electronic device 100 receives an incoming call, a short message, a new message, or an alarm clock of the electronic device 100 reminds.
It will be appreciated that the at least one first light-emitting unit 3 may emit light of the same color or light of different colors, and that the color of the light emitted by the at least one first light-emitting unit 3 may differ from scene to scene. For example, when the fingerprint module 10 performs fingerprint recognition, one or at least one of the first light emitting units 3 emits white light. When the electronic device 100 receives an incoming call, a short message, a new message, or an alarm clock of the electronic device 100 for reminding, the first light-emitting unit 3 can be triggered to emit red light, green light, blue light, and the like. The at least one first light emitting unit 3 may emit light continuously, emit light of the same color by blinking, emit light of different colors by blinking, and alternately emit light of different colors.
Specifically, the first light emitting unit 3 may be an LED lamp. The first light emitting unit 3 may also be a light emitting device other than an LED lamp, for example, a miniLED, a mircoLED, or the like. The at least one first light-emitting unit 3 may also be replaced by a ring-shaped LED. The first light emitting unit 3 can be selected according to the specific design scheme or the light emitting requirement of the fingerprint module 10.
It is understood that the at least one first light emitting unit 3 is annularly surrounding the fingerprint recognition sensor 22, such that the at least one first light emitting unit 3 is capable of emitting light around the fingerprint recognition sensor 22.
Referring to fig. 3, the flexible circuit board 21 abuts against the annular protrusion 12. A plurality of concave parts 121 are arranged on the surface of the annular bulge 12 abutting against the flexible circuit board 21. Each of the first light emitting units 3 is disposed in one of the recesses 121.
Through set up a plurality of depressed parts 121 on annular arch 12, work as flexible circuit board 21 butt during annular arch 12, first luminescence unit 3 all accepts in depressed part 121 to make flexible circuit board 21 with leaded light 1 can closely laminate, avoid first luminescence unit 3 and the setting of annular arch 12 stack in the Z axle direction, reduce fingerprint module 10 thickness in the Z axle direction.
In other embodiments, an annular groove is provided on the surface of the annular protrusion 12 abutting against the flexible circuit board 21, and the at least one first light-emitting unit 3 is disposed in the annular groove.
Referring to fig. 4, the light guide member 1 further includes an abutting portion 14 surrounding the outer peripheral surface of the annular protrusion 12. One end of the abutting portion 14 is connected to one end of the annular projection 12 away from the main body portion 11. The other end of the abutting portion 14 extends along the flexible circuit board 21 toward a direction away from the annular projection 12.
Specifically, when the main body 11 is circular, the annular projection 12 is circular cylindrical, and the contact portion 14 is substantially circular disk-shaped. The surface on which the contact portion 14 is located and the surface on which the main body portion 11 is located may be parallel or substantially parallel, but there is a difference in height in the Z-axis direction between the surface on which the contact portion 14 is located and the surface on which the main body portion 11 is located.
Referring to fig. 4, when the fingerprint module 10 is mounted on the electronic device 100, the main body 11 and the annular protrusion 12 are disposed in the through hole of the housing 20 of the electronic device 100, and the abutting portion 14 abuts against the inner surface of the housing 20 of the electronic device 100.
A step surface is formed between the surface of the abutting portion 14 facing the main body portion 11 and the outer peripheral surface of the annular protrusion 12, and the step surface is used for being matched with the shell 20 of the electronic device 100 so that the fingerprint module 10 is installed on the shell 20 of the electronic device 100.
By arranging the abutting part 14, the matching structure of the light guide 1 and the housing 20 of the electronic device 100 is increased, so that the installability of the fingerprint module 10 is improved, and the installation efficiency of the electronic device 100 is improved.
Referring to fig. 4, the abutting portion 14 is connected to the flexible circuit board 21 to seal the fingerprint sensor 22 and the first light emitting unit 3.
Through setting up butt portion 14, so that increase the area that leaded light 1 and flexible circuit board 21 are connected, in order to increase the connection tightness between leaded light 1 and the flexible circuit board 21, when the flexible circuit board 21 is connected to leaded light 1, can seal fingerprint identification sensor 22 and first luminescence unit 3 between leaded light 1 and flexible circuit board 21, prevent that fingerprint identification sensor 22 and first luminescence unit 3 from receiving moisture, the invasion and attack of dust, improve fingerprint module 10's waterproof leakproofness and the security of line identification sensor.
Referring to fig. 5, the surface of the abutting portion 14 connected to the flexible circuit board 21 is a concave-convex surface. The concave-convex surface is hermetically connected with the flexible circuit board 21 through the sealant 15, so that the connection strength between the abutting part 14 and the flexible circuit board 21 is improved, and further, the sealing strength between the fingerprint identification sensor 22 and the first light-emitting unit 3 is improved.
It can be understood that the abutting portion 14 of the light guide member 1 is connected to the flexible circuit board 21, so that the fingerprint module 10 is formed as a whole, i.e. the fingerprint module 10 can be installed in the electronic device 100 in an integrated and modularized manner.
The at least one first light-emitting unit 3 surrounds the periphery of the fingerprint sensor 22, and the at least one first light-emitting unit 3 is used for emitting light rays with the same color or different colors.
The first light-emitting unit 3 includes an LED lamp group composed of a plurality of LED lamps, and the light-emitting color of the LED lamp group may be white, red, green, yellow, blue, or the like. The light guide member 1 has a good light transmittance. The first light-emitting unit 3 may emit light under a preset condition, for example, when the preset condition is fingerprint identification, or in a scenario where the electronic device 100 receives an incoming call, a short message, a new message, or an alarm clock of the electronic device 100 reminds, the first light-emitting unit 3 may be triggered to emit light.
It will be appreciated that the at least one first light-emitting unit 3 may emit light of the same color or light of different colors, and that the color of the light emitted by the at least one first light-emitting unit 3 may differ from scene to scene. For example, when the fingerprint module 10 performs fingerprint recognition, one or at least one of the first light emitting units 3 emits white light. When the electronic device 100 receives an incoming call, a short message, a new message, or an alarm clock of the electronic device 100 for reminding, the first light-emitting unit 3 can be triggered to emit red light, green light, blue light, and the like. The at least one first light emitting unit 3 may emit light continuously, emit light of the same color by blinking, emit light of different colors by blinking, and alternately emit light of different colors.
Referring to fig. 6 in conjunction with any of the above embodiments, the fingerprint identification module 22 further includes at least one second light emitting unit 24. The at least one second light emitting unit 24 is disposed on the flexible circuit board 21. And the at least one second light emitting unit 24 is disposed in the groove 13. The light emitted by the at least one second light-emitting unit 24 is acted by the main body portion 11 to form a surface light source.
Further, the fingerprint identification module 22 further includes an encapsulation layer 23. The packaging layer 23 is used for packaging the at least one second light-emitting unit 24 and the fingerprint identification sensor 22 on the flexible circuit board 21.
In other words, the second light emitting unit 24 and the fingerprint sensor 22 are packaged to form a whole and are placed in the groove 13 of the light guide member 1, so that the fingerprint identification module 2 is tightly matched and installed with the light guide member 1.
The second light emitting unit 24 may be disposed around the circumferential side of the fingerprint recognition sensor 22 so that the second light emitting unit 24 can emit light uniformly on the circumferential side of the fingerprint recognition sensor 22.
It is understood that the first light emitting unit 3 and the second light emitting unit 24 are electrically connected to the processor through the multi-way selector switch, so that the first light emitting unit 3 can emit light alone, the second light emitting unit 24 can emit light alone, and the first light emitting unit 3 and the second light emitting unit 24 can emit light simultaneously.
Referring to fig. 6 and 7, the first light emitting unit 3 and the second light emitting unit 24 are arranged as inner and outer light emitting rings. When the electronic device 100 is set under the preset condition, the light-emitting ring in which the first light-emitting unit 3 is located and the light-emitting ring in which the second light-emitting unit 24 is located may be set to continuously emit light or alternately emit light.
Referring to fig. 8, the recessed portion 121 is communicated with the groove 13, and compared with the recessed portion 121 separated from the groove 13, the processing difficulty of the recessed portion 121 can be reduced in this embodiment, and the yield of the light guide member 1 can be further improved. Through locating first luminescence unit 3 in the depressed part 121 to make first luminescence unit 3 be close to the fingerprint identification sensor 22 setting of fingerprint identification module 2, make the device on the flexible circuit board 21 concentrate more, reduce the whole size of fingerprint module 10.
Referring to fig. 9, a portion of the first light emitting unit 3 is disposed in the groove 13, and another portion of the first light emitting unit 3 is disposed in the recess 121.
In recess 13 is located to some through setting up first luminescence unit 3, in the depressed part 121 is located to the first luminescence unit 3 of another part to make the partial light of first luminescence unit 3 transmission to main part 11 through annular arch 12, another part passes through light packaging layer 23 and transmits to main part 11, so that main part 11 can evenly receive light, improves fingerprint module 10's recognition efficiency.
Referring to fig. 10, a reflective layer 122 is disposed on an outer peripheral surface of the annular protrusion 12, and the light is reflected by the reflective layer 122 and then emitted from a surface of the main body 11.
By providing the reflective layer 122 on the outer peripheral surface of the annular protrusion 12, light is reduced from being emitted from the outer peripheral surface of the annular protrusion 12, and is guided to be emitted from the top surface of the main body 11, so that the light extraction efficiency of the top surface of the main body 11 is improved.
Further, referring to fig. 11, the surface of the main body 11 facing the fingerprint sensor 22 has an ink layer 111, the ink layer 111 makes a partial area of the fingerprint module 10 consistent with the color of the electronic device 100, and the ink layer 111 is a light-transmitting ink layer 111.
Referring to fig. 12 and 13 together, an embodiment of the present application provides a method 300 for controlling an electronic device. The control method 300 may be applied to an electronic device. The electronic device includes, but is not limited to, the electronic device 100 provided in any of the above embodiments. The electronic device includes a fingerprint identification module 2, a light guide 1, at least one first light emitting unit 3, a touch sensor 30, and a processor (not shown). The light guide part 1 is covered on the fingerprint identification module 2. The at least one first light emitting unit 3 emits light toward the light guide 1. The touch sensor 30 is disposed adjacent to the light guide 1. The touch sensor 30 is used to generate a touch signal when a finger touch is detected. The processor is electrically connected with the at least one first light-emitting unit 3 and the fingerprint identification module 2. The control method 300 includes:
in operation 301, the processor receives a touch signal emitted by the touch sensor 30.
In operation 302, the processor controls the at least one first light emitting unit 3 to emit light according to the touch signal.
And operation 303, the processor controls the fingerprint identification module 2 to acquire a fingerprint image according to the touch signal.
Specifically, the touch sensor 30 may be disposed between the light guide 1 and the housing 20, for example, the touch sensor 30 may be annular and may be disposed around the outer peripheral surface of the light guide 1. The top surface of the touch sensor 30 is flush with the top surface of the main body 11 of the light guide 1, so that the touch sensor 30 can be contacted even when the fingerprint surface is contacted with the light guide 1.
Receiving, by the processor, a touch signal emitted by the touch sensor 30; the processor controls the at least one first light-emitting unit 3 to emit light according to the touch signal; the processor controls the fingerprint identification module 2 to collect fingerprint images according to the touch signals; when a user touches the touch sensor 30, light emitted by the first light emitting unit 3 is emitted through the light guide member 1 to form a surface light source with uniform intensity, so that the fingerprint collection precision and accuracy are improved.
Further, the light guide 1 has a groove 13 and an annular protrusion 12 surrounding the groove 13. Fingerprint identification module 2 is located in the recess 12 of leaded light spare 1. The at least one first light emitting unit 3 emits light toward the annular protrusion 12. The fingerprint identification module 2 further comprises at least one second light emitting unit 24. The at least one second light emitting unit 24 is electrically connected to the processor.
The control method 300 further includes:
the processor controls the at least one second light emitting unit 24 to emit light according to the touch signal.
Receiving, by the processor, a touch signal emitted by the touch sensor 30; the processor controls the at least one first light-emitting unit 3 to emit light according to the touch signal; the processor controls the fingerprint identification module 2 to collect fingerprint images according to the touch signals; the processor controls the at least one second light-emitting unit 24 to emit light according to the touch signal; so that when carrying out fingerprint collection, not only the outer first luminescence unit 3 of fingerprint identification module 2 gives out light, and the outer second luminescence unit 24 of fingerprint identification module 2 also gives out light to the intensity that makes the top surface of leaded light 1 ejaculate is great, and then improves fingerprint collection's precision and rate of accuracy.
Further, referring to fig. 14, the electronic device 100 further includes a power supply 50 and a power switch 60. The power switch 60 is connected between the power source 50, the at least one first light emitting unit 3, and the at least one second light emitting unit 24. The processor 40 is configured to control the power switch 60 to be turned on when the touch sensor 30 detects a touch signal, so that the at least one first light-emitting unit 3 and the at least one second light-emitting unit 24 emit light and the light is guided to the outside of the housing 20 through the light guide 1 to form a surface light source with uniform intensity.
When the processor 40 receives the touch signal, the first light emitting unit 3 and/or the second light emitting unit 24 may be controlled to emit white light according to a preset setting for fingerprint recognition.
The electronic device 100 also includes an ambient light sensor (not shown). The electronic equipment further comprises an ambient light sensor, wherein the ambient light sensor is used for emitting a light-emitting signal when detecting that the intensity of ambient light is smaller than a preset value; the ambient light sensor is electrically connected to the processor 40.
The control method 300 further includes:
the processor 40 receives the luminescence signal emitted by the ambient light sensor.
The processor 40 controls the at least one first light-emitting unit 3 and/or the at least one second light-emitting unit 24 to emit light according to the light-emitting signal.
When the light intensity detected by the ambient light sensor is smaller than a preset value (for example, at night), the processor 40 controls at least one of the first light-emitting unit 3 or the second light-emitting unit 24 to emit light, so that the user is in a weak light or dark environment, the fingerprint module 10 can emit light to prompt the position of the electronic device 100, so that the electronic device 100 can be found quickly, and a fingerprint identification area can be indicated, so that quick fingerprint identification is facilitated.
Wherein at least one of the first light emitting units 3 may emit red light, green light, blue light, etc. The at least one first light emitting unit 3 may emit light continuously, emit light of the same color by blinking, emit light of different colors by blinking, and alternately emit light of different colors. Meanwhile, the at least one second light emitting unit 24 emits red light, green light, blue light, and the like. The at least one second light emitting unit 24 may emit light continuously, emit light of the same color by blinking, emit light of different colors by blinking, and alternately emit light of different colors. In this process, the first light emitting unit 3 and the second light emitting unit 24 may emit light at the same time, and the emitted light may be the same or different. Further, the first light emitting unit 3 and the second light emitting unit 24 may alternately emit light.
In other application scenarios, for example, when the processor 40 receives a trigger signal of an incoming call, a short message, a new message, or an alarm clock of the electronic device 100 for reminding, the processor 40 may also be triggered to emit a light-emitting signal to control the at least one first light-emitting unit 3 and/or the at least one second light-emitting unit 24 to emit light.
While the foregoing is directed to embodiments of the present application, it will be appreciated by those skilled in the art that various changes and modifications may be made without departing from the principles of the application, and it is intended that such changes and modifications be covered by the scope of the application.
Claims (15)
1. An electronic device, comprising:
the light guide piece comprises a main body part, an annular bulge convexly arranged on the main body part and a groove surrounded by the annular bulge;
the fingerprint identification module comprises a flexible circuit board, a fingerprint identification sensor and an encapsulation layer, wherein the fingerprint identification sensor and the encapsulation layer are arranged on the flexible circuit board; and
the flexible circuit board is provided with at least one first light-emitting unit, the at least one first light-emitting unit is arranged on the flexible circuit board and faces the annular protrusion to emit light, the light is transmitted to the main body part through the annular protrusion, a surface light source is formed on the surface of the main body part, and the light of the surface light source is reflected by a fingerprint surface and then received by the fingerprint identification sensor to collect fingerprint signals.
2. The electronic device of claim 1, wherein the flexible circuit board abuts the annular protrusion, a recess is provided on a surface of the annular protrusion abutting the flexible circuit board, and the at least one first light-emitting unit is provided in the recess.
3. The electronic device according to claim 2, wherein the light guide further includes an abutting portion that is attached to an outer peripheral surface of the annular protrusion, one end of the abutting portion is connected to an end of the annular protrusion away from the main body portion, and the other end of the abutting portion extends along the flexible circuit board in a direction away from the annular protrusion.
4. The electronic device of claim 3, wherein the abutting portion is connected to the flexible circuit board to seal the fingerprint sensor and the at least one first light-emitting unit.
5. The electronic device of claim 4, wherein the surface of the abutting portion, which is connected to the flexible circuit board, is a concave-convex surface, and the concave-convex surface is hermetically connected to the flexible circuit board through a sealant.
6. The electronic device according to claim 3, wherein the electronic device includes a housing, the housing has a through hole, at least a part of the main body portion and the annular protrusion is disposed in the through hole, outer peripheral surfaces of the main body portion and the annular protrusion are sealingly connected to an inner wall of the through hole, and the abutting portion abuts against an inner surface of the housing of the electronic device.
7. The electronic device of claim 1, wherein the at least one first light-emitting unit surrounds a periphery side of the fingerprint identification sensor, and the at least one first light-emitting unit is configured to emit light of a same color or a different color.
8. The electronic device according to any one of claims 1 to 7, wherein the fingerprint identification module further comprises at least one second light-emitting unit, the at least one second light-emitting unit is disposed on the flexible circuit board, the at least one second light-emitting unit is disposed in the groove, and light emitted by the at least one second light-emitting unit forms a surface light source after being acted by the main body portion.
9. The electronic device of claim 8, wherein the fingerprint identification module further comprises an encapsulation layer for encapsulating the at least one second light-emitting unit and the fingerprint identification sensor on the flexible circuit board.
10. The electronic device according to any one of claims 2 to 6, wherein the recess communicates with the groove.
11. The electronic device of claim 10, wherein a portion of the first light emitting unit is disposed in the recess and another portion of the first light emitting unit is disposed in the recess.
12. The electronic device according to any one of claims 1 to 7, wherein a reflective layer is provided on an outer peripheral surface of the annular protrusion, and the light is reflected by the reflective layer and then emitted from a surface of the main body.
13. A control method of electronic equipment is characterized in that the electronic equipment comprises a fingerprint identification module, a light guide piece, at least one first light-emitting unit, a touch sensor and a processor, the light guide piece cover is arranged on the fingerprint identification module, the light guide piece comprises a main body part, an annular bulge convexly arranged on the main body part and a groove surrounded by the annular bulge, the fingerprint identification module is arranged in the groove of the light guide part, the at least one first light-emitting unit emits light towards the annular bulge, the fingerprint identification module comprises a flexible circuit board, a fingerprint identification sensor and a packaging layer, wherein the fingerprint identification sensor and the packaging layer are arranged on the flexible circuit board, the flexible circuit board is arranged opposite to the main body part, the packaging layer packages the fingerprint identification sensor, at least part of the fingerprint identification sensor and at least part of the packaging layer are arranged in the groove; the at least one first light-emitting unit emits light towards the annular bulge, the touch sensor is arranged adjacent to the light guide piece and used for generating a touch signal when a finger touch is detected, and the processor is electrically connected with the at least one first light-emitting unit and the fingerprint identification module; the control method comprises the following steps:
the processor receives a touch signal emitted by the touch sensor;
the processor controls the at least one first light-emitting unit to emit light according to the touch signal;
the processor controls the fingerprint identification module to collect fingerprint images according to the touch signals.
14. The control method according to claim 13, wherein the fingerprint recognition module further comprises at least one second light-emitting unit electrically connected to the processor;
the control method further comprises the following steps:
the processor controls the at least one second light-emitting unit to emit light according to the touch signal.
15. The control method of claim 14, wherein the electronic device further comprises an ambient light sensor for emitting a light emitting signal when detecting that the intensity of ambient light is less than a preset value; the ambient light sensor is electrically connected with the processor;
the control method further comprises the following steps:
the processor receives a luminescence signal emitted by the ambient light sensor;
the processor controls the at least one first light-emitting unit and/or the at least one second light-emitting unit to emit light according to the light-emitting signal.
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| CN111834352B (en) * | 2019-11-21 | 2022-06-14 | 江西合力泰科技有限公司 | Luminous biological recognition chip packaging structure and manufacturing method thereof |
| CN112866443B (en) | 2019-11-27 | 2023-08-08 | 北京小米移动软件有限公司 | Middle frame of electronic equipment and electronic equipment |
| CN111758100A (en) * | 2019-12-24 | 2020-10-09 | 深圳市汇顶科技股份有限公司 | Fingerprint identification device, backlight unit, display screen and electronic equipment |
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