CN114926868A - Fingerprint module, control method of fingerprint module and electronic equipment - Google Patents
Fingerprint module, control method of fingerprint module and electronic equipment Download PDFInfo
- Publication number
- CN114926868A CN114926868A CN202210531934.2A CN202210531934A CN114926868A CN 114926868 A CN114926868 A CN 114926868A CN 202210531934 A CN202210531934 A CN 202210531934A CN 114926868 A CN114926868 A CN 114926868A
- Authority
- CN
- China
- Prior art keywords
- light
- camera
- lens
- fingerprint module
- fingerprint
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- G06V40/1324—Sensors therefor by using geometrical optics, e.g. using prisms
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
- G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/10—Image acquisition
- G06V10/12—Details of acquisition arrangements; Constructional details thereof
- G06V10/14—Optical characteristics of the device performing the acquisition or on the illumination arrangements
- G06V10/141—Control of illumination
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/96—Management of image or video recognition tasks
Abstract
The application relates to a control method and electronic equipment of fingerprint module, and this fingerprint module includes: a first lens; the lens comprises a shell, a first lens and a second lens, wherein one end of the shell is provided with a light supplementing groove, the light supplementing groove faces the first lens, the first lens covers the light supplementing groove, the shell is provided with a light transmitting area, the light supplementing groove is of an annular structure surrounding the light transmitting area, and the light supplementing groove is provided with a flash lamp through hole; the first camera is positioned on one side, far away from the first lens, of the shell and faces the light transmission area; the flash lamp is arranged in the shell and used for providing illumination for the first camera. Through set up the light supplementing groove on the casing, can carry out fingerprint identification at the fingerprint module when, the light that utilizes the flash light is regional for the fingerprint that is shot provides sufficient illumination, realizes the effect of fingerprint module and camera subassembly integration to simplify electronic equipment's structure, reduced design cost.
Description
Technical Field
The application relates to the technical field of fingerprint identification, in particular to a fingerprint module, a control method of the fingerprint module and electronic equipment.
Background
Many present electronic equipment all have the function of carrying out the unblock through fingerprint identification, and current fingerprint unblock scheme mainly has side fingerprint, leading fingerprint, rearmounted fingerprint, fingerprint and so on under the screen, all need set up fingerprint module or device alone and just can realize the fingerprint identification function, and the structure is complicated and design cost is high.
Disclosure of Invention
An object of the application is to provide a fingerprint module, a control method of the fingerprint module and an electronic device, wherein the fingerprint module can combine a fingerprint identification function and a photographing function in the same module to achieve the fingerprint identification function and the photographing function, so that the structure is simplified, and the cost is reduced.
This application first aspect provides a fingerprint module, the fingerprint module includes: a first lens; the lens comprises a shell, wherein one end of the shell is provided with a light supplementing groove, the light supplementing groove faces towards the first lens, the first lens covers the light supplementing groove, the shell is provided with a light transmitting area, the light supplementing groove is of an annular structure surrounding the light transmitting area, and the light supplementing groove is provided with a flash lamp through hole; the first camera is positioned on one side, far away from the first lens, of the shell, and faces the light transmitting area; and the flash lamp is arranged in the shell and used for providing illumination for the first camera. Through set up the light supplementing groove on the casing, can carry out fingerprint identification at the fingerprint module, the light that utilizes the flash light provides sufficient illumination for the fingerprint region of being shot for first camera is on the basis that possesses the shooting function, can also realize the fingerprint identification function, the effect of fingerprint module and camera subassembly integration has been reached, thereby electronic equipment's design cost has been reduced, compare the scheme that needs set up the fingerprint module alone among the prior art, electronic equipment's overall structure can be simplified. In addition, the light compensating groove is of an annular structure and is arranged around the light transmitting area, so that the uniformity of light can be improved, and the problem that the collected fingerprint image is partially lost or inaccurate due to nonuniform illumination is avoided.
In a possible design, the housing is provided with a receiving portion for receiving at least a portion of the first camera, and one end of the receiving portion close to the first lens is provided with a light transmitting hole, and the light transmitting hole is the light transmitting area; the light supplementing groove is arranged around the outer side of the accommodating part. Light filling groove and the space intercommunication of printing opacity hole top, light can be followed the light filling groove and reachd the top of printing opacity hole, will be lighted by the first lens that the finger covered, and simultaneously, the light of finger fingerprint area reflection can be followed the printing opacity and jeted into first camera, has ensured the noncongestion of light path.
In a possible design, the part of portion for the light filling groove, the lateral wall height in light filling groove is greater than the inside wall height in light filling groove, and the lateral wall in light filling groove is higher than the top of portion for the light filling groove promptly, adopts this kind of structural design, can increase the distance between light trap and the first lens, has enlarged the space volume that light trap top and light filling groove communicate mutually promptly, provides bigger diffusion space for the light in the light filling groove to improve irradiant homogeneity.
In a possible design, the light hole is circular with the light filling groove is concentric, can guarantee that illumination light shines uniformly in the fingerprint area that covers on first lens, can also guarantee that the light after the regional reflection of fingerprint can also be shone uniformly in the light hole equally to incide in the first camera through the light hole. In addition, the diameter of the light supplementing groove is large, the area of a formed light supplementing area is large, light spots generated due to light gathering can be avoided, and the illumination uniformity during light supplementing is further improved.
In a possible design, the flash through hole is disposed in a bottom wall of the light compensation groove, and the flash is disposed in the flash through hole. At the moment, the flash lamp does not need to occupy the rest space in the shell, and the volume of the shell is favorably reduced. And compare in setting up the flash light in the below of flash light through-hole, set up the flash light in the flash light through-hole, can guarantee that there are more light to enter into the light filling inslot to sufficient light source has been ensured.
In a possible design, the light supplementing groove is provided with a plurality of flash lamp through holes, and the flash lamp through holes are uniformly arranged along the annular structure; the fingerprint module includes with every the flash lamp through-hole corresponds the flash lamp. The illumination intensity that can improve when meneing light is opened simultaneously to a plurality of flash lamps, and in addition, a plurality of flash lamp through-holes evenly set up on the benefit light groove of loop configuration, can also guarantee that the light distribution in the benefit light groove is even, and can guarantee to shine the light intensity unanimity on the fingerprint region of finger. Wherein, this application does not do the restriction to the concrete quantity of flash light through-hole, only need guarantee a plurality of flash light through-holes can follow the even setting in light filling groove can.
In one possible design, a height H of an end of the first lens close to the first camera from the surface of the flash satisfies: h is more than or equal to 0.05mm and less than or equal to 1mm, and at the moment, the light in the space above the light hole is sufficient, so that the uniform illumination can be provided for the fingerprint area covering the first lens, the height of the shell can be reduced to the greatest extent, and the volume of the fingerprint module is reduced.
In a possible design, first lens is kept away from the one end of first camera is provided with anti fingerprint coating film layer, and this coating film layer possesses certain hardness, can reduce the injury that nail scraping, cloth friction and hard thing collision brought to possess advantages such as dampproofing and waterproofing, antifriction, antifouling anticorrosion, easy cleanness, consequently, set up anti fingerprint coating film layer and can improve the anti fingerprint ability and the anti-soil ability of first lens and still easily clean simultaneously.
In one possible design, the fingerprint module is provided with a pressure sensor for sensing the pressure to which the first lens is subjected. The pressure sensor can improve the precision of a fingerprint identification mode, avoids the problem that the electronic equipment is unlocked by mistake after a finger is mistakenly touched, and improves the reliability of a fingerprint identification function.
This application second aspect provides a control method of fingerprint module, and this fingerprint module is the fingerprint module in the first aspect, the method includes: in a shooting mode, controlling the first camera to shoot images; and under a fingerprint identification mode, controlling the flash lamp to provide illumination for the first camera and controlling the first camera to shoot images. By adopting the control method, the working states of the first camera and the flash lamp can be respectively controlled in two modes, so that the first camera has two functions of shooting and fingerprint identification, the effect of integrating the fingerprint module and the camera assembly is achieved, and the design cost of the electronic equipment is reduced.
In one possible design, the method further includes: in the photographing mode, controlling the first camera to transmit a photographed image in a first bandwidth; and in the fingerprint identification mode, controlling the first camera to transmit the shot image at a second bandwidth, wherein the first bandwidth is larger than the second bandwidth.
In one possible design, the fingerprint module is provided with a pressure sensor for sensing the pressure applied to the first lens; in the fingerprint identification mode, before the controlling the flash to provide illumination for the first camera and controlling the process of the first camera to shoot images, the method further comprises: and acquiring the pressure on the first lens sensed by the pressure sensor, and if the pressure is greater than a preset value, controlling the flash lamp to provide illumination for the first camera and controlling the first camera to shoot images. Since the situation that a finger touches the first lens by mistake may exist in the process of using the electronic equipment by a user, if the pressure value sensed by the pressure sensor is smaller than the preset value, the situation that the user touches by mistake and the fingerprint module is in a photographing mode is judged, and at the moment, the processor controls the first camera to photograph an image; if the pressure value that pressure sensor sensed is greater than the default, then judge that user's pressing is effective, the fingerprint module should be in the fingerprint identification mode, and at this moment, treater control flash light provides the illumination for first camera to control first camera and shoot the image. Consequently, this pressure sensor's setting has improved the reliability of treater to the control accuracy and the fingerprint identification function of fingerprint module.
A third aspect of the present application provides an electronic device, including: a main body provided with a mounting groove; the rear cover is buckled on the main body; the fingerprint module is fixed in the mounting groove, the fingerprint module be above the fingerprint module. The fingerprint module can realize electronic equipment's shooting function and fingerprint identification function under the control of treater.
In a possible design, the electronic device further includes a camera decoration, the rear cover is provided with a mounting hole, and the camera decoration is fixed to the mounting hole; the casing centre gripping in the camera decoration with between the main part. The camera decoration is installed and is covered after, can play certain sealed effect to the fingerprint module, improves electronic equipment's waterproof and dust resistance.
In a possible design, the camera decorating part is provided with a first lens through hole, and the first lens through hole is communicated with the light supplementing groove; at least part of first lens imbed in first lens through-hole makes the position of first lens protruding to the outside for the back lid, and the user of being convenient for presses the use, can improve electronic equipment's user experience.
In a possible design, the electronic device further includes a processor, and the processor is configured to execute the control method of the fingerprint module as described above.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
Fig. 1 is a block diagram of an electronic device according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a fingerprint module according to an embodiment of the present disclosure;
FIG. 3 is a schematic view of the first lens and the housing of FIG. 2 from another perspective;
FIG. 4 is a schematic cross-sectional view of the first lens and the housing of FIG. 3 along the center line;
FIG. 5 is a schematic view of the structure of FIG. 4 from another perspective;
FIG. 6 is a flowchart illustrating a control method of a fingerprint module according to an embodiment of the present disclosure;
FIG. 7 is a flowchart illustrating another exemplary method of controlling a fingerprint module according to an embodiment of the present disclosure;
FIG. 8 is a diagram illustrating the software architecture of an input subsystem of an electronic device according to an embodiment of the present application;
FIG. 9 is a top view of a back side of an electronic device in an embodiment of the present application;
FIG. 10 is a schematic structural diagram of the electronic device in FIG. 9 from another perspective;
FIG. 11 is an exploded view of FIG. 10 from another perspective;
FIG. 12 is a top view of a back side of another electronic device in an embodiment of the application;
FIG. 13 is a schematic diagram of the electronic device in FIG. 12 from another perspective;
FIG. 14 is a top view of a back side of yet another electronic device in an embodiment of the present application;
fig. 15 is a schematic structural diagram of the electronic device in fig. 14 from another viewing angle.
Reference numerals:
100-an electronic device;
110-a processor;
193-camera;
194-a display screen;
1-a first lens;
2-a shell;
21-a light compensation groove;
211-flash through hole;
212-inner side wall;
213-an outer sidewall;
214-a bottom wall;
22-a housing;
221-a light-transmitting region;
222-a containment space;
3-a first camera;
4-a body;
41-mounting groove;
5-rear cover;
51-mounting holes;
6-camera decoration;
61-first lens through hole;
62-a second lens through hole;
7-a second camera;
8-a second lens;
9-camera support bracket.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
Detailed Description
First, a description will be given of the related art: among current electronic equipment's fingerprint unblock scheme, leading fingerprint scheme, rearmounted fingerprint scheme and side fingerprint scheme mainly discern user's fingerprint characteristic through setting up fingerprint sensor, and the fingerprint scheme is mainly discerned user's fingerprint characteristic through setting up camera under the screen, consequently, no matter which kind of identification scheme, all need set up fingerprint module or device alone, and the design cost that leads to electronic equipment is higher.
Among present electronic equipment such as cell-phone, including the camera that is used for shooing, in order to reduce design cost, can use the camera that is used for shooing among the electronic equipment to carry out the collection of fingerprint image, realize the fingerprint and shoot the function and realize through same camera subassembly. However, if the fingerprint identification is performed in this way, the finger of the user can shield the external light, so that insufficient illumination is caused, and the collection of the fingerprint image cannot be realized.
In order to solve the technical problem, an embodiment of the present application provides a fingerprint module, which can be installed in an electronic device to realize a fingerprint unlocking function of the electronic device. The electronic device may be any electronic device having a fingerprint unlocking function, such as a mobile phone, a tablet computer, an ultra-mobile personal computer (UMPC), a netbook, a cellular phone, a Personal Digital Assistant (PDA), an Augmented Reality (AR) device, a Virtual Reality (VR) device, an Artificial Intelligence (AI) device, a wearable device, a vehicle-mounted device, an intelligent home device, and/or a smart city device. The embodiment of the present application does not particularly limit the specific form of the electronic device, and for convenience of description, the following description takes the electronic device as a mobile phone as an example.
Before describing the embodiments of the present application, the electronic device according to the embodiments of the present application is first described, and as shown in fig. 1, the electronic device 100 may include a processor 110, a camera 193, a display 194, and the like. It is to be understood that the illustrated structure of the embodiment of the present invention does not specifically limit the electronic device 100. In other embodiments of the present application, electronic device 100 may include more or fewer components than shown, or some components may be combined, some components may be split, or a different arrangement of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.
Processor 110 may include one or more processing units, such as: the processor 110 may include a Graphics Processing Unit (GPU), an Image Signal Processor (ISP), a controller, a video codec, a Digital Signal Processor (DSP), and the like. Wherein, the different processing units may be independent devices or may be integrated in one or more processors. The controller can generate an operation control signal according to the instruction operation code and the time sequence signal to finish the control of instruction fetching and instruction execution. A memory may also be provided in processor 110 for storing instructions and data.
The electronic device 100 implements display functions via the GPU, the display screen 194, and the application processor. The GPU is a microprocessor for image processing, connected to the display screen 194 and the application processor. The GPU is used to perform mathematical and geometric calculations for graphics rendering. The processor 110 may include one or more GPUs that execute program instructions to generate or alter display information.
The electronic device 100 may implement a shooting function through the ISP, the camera 193, the video codec, the GPU, the display 194, the application processor, and the like. The display screen 194 may be a touch screen.
The ISP is used to process the data fed back by the camera 193. For example, when a user takes a picture, the shutter is opened, light is transmitted to the camera photosensitive element through the lens, an optical signal is converted into an electric signal, and the camera photosensitive element transmits the electric signal to the ISP for processing and converting into an image visible to the naked eye. The ISP can also carry out algorithm optimization on the noise, brightness and skin color of the image. The ISP can also optimize parameters such as exposure, color temperature and the like of a shooting scene. In some embodiments, the ISP may be provided in camera 193.
The camera 193 is used to capture still images or video. The object generates an optical image through the lens and projects the optical image to the photosensitive element. The photosensitive element may be a Charge Coupled Device (CCD) or a complementary metal-oxide-semiconductor (CMOS) phototransistor. The photosensitive element converts the optical signal into an electrical signal, and then transmits the electrical signal to the ISP to be converted into a digital image signal. And the ISP outputs the digital image signal to the DSP for processing. The DSP converts the digital image signal into image signal in standard RGB, YUV and other formats. In some embodiments, electronic device 100 may include 1 or N cameras 193, N being a positive integer greater than 1.
The digital signal processor is used for processing digital signals, and can process other digital signals besides digital image signals. For example, when the electronic device 100 selects a frequency bin, the digital signal processor is used to perform fourier transform or the like on the frequency bin energy.
Video codecs are used to compress or decompress digital video. The electronic device 100 may support one or more video codecs. In this way, the electronic device 100 may play or record video in a variety of encoding formats, such as: moving Picture Experts Group (MPEG) 1, MPEG2, MPEG3, MPEG4, and the like.
In order to better understand the technical solution of the present application, the following detailed description is made with reference to the accompanying drawings.
As shown in fig. 2 to 4, the fingerprint module includes a first lens 1, a housing 2, a first camera 3 and a flash (not shown). Wherein, casing 2 is provided with light supplementing groove 21 towards the one end of first lens, and first lens 1 is the same with light supplementing groove 21 size or close to make first lens 1 can cover light supplementing groove 21, still is provided with light transmission area 221 on casing 2, and light supplementing groove 21 is the annular structure around light transmission area 221 sets up, and first camera 3 is located one side that first lens 1 was kept away from to casing 2, and moves towards light transmission area 221, when first camera 3 during operation, first camera 3 can see through light transmission area 221 and first lens 1 and shoot. This fingerprint module can be applied to the electronic equipment 100 in fig. 1, if electronic equipment 100 includes 1 camera 193, then this camera 193 is first camera 3 promptly, if electronic equipment 100 includes a plurality of cameras 193, first camera 3 can be one in a plurality of cameras 193.
As shown in fig. 4, a flash through hole 211 is formed in the light compensation groove 21, and the flash is installed in the housing 2 at a position corresponding to the position of the flash through hole 211, so that light emitted from the flash during operation can penetrate through the flash through hole 211 and enter the light compensation groove 21. When the user's finger pressed on first lens 1, the finger covered partial or whole area of first lens 1, led to external environment's light to be blocked, irradiated to the regional light of finger fingerprint not enough, can't form sufficient reflection light and incide on first camera 3. At this moment, can open the flash lamp, the light that makes the flash lamp send carries out the light filling through light filling groove 21, because first lens 1 covers in light filling groove 21, the light that the flash lamp sent can be lighted the region that is sheltered from on first lens 1 through light filling groove 21 back, guarantee that sufficient light can shine the fingerprint region that the finger is shone to first lens 1 through first lens 1, and, first lens 1 can also cover light transmission area 221, make the light of regional reflection of fingerprint can follow light transmission area 221 and incide first camera 3, realize the fingerprint identification function of fingerprint module.
The fingerprint module that this application provided is through setting up light supplementing groove 21 on casing 2, can carry out fingerprint identification at the fingerprint module when, the light that utilizes the flash light provides sufficient illumination for the fingerprint area of being shot, make first camera 3 on the basis that possesses the shooting function, can also realize the fingerprint identification function, the effect of fingerprint module and camera subassembly integration has been reached, thereby electronic equipment's design cost has been reduced, compare the scheme that need set up the fingerprint module alone among the prior art, electronic equipment's overall structure can be simplified. In addition, the light supplementing groove 21 is of an annular structure and is arranged around the light transmitting area 221, so that the uniformity of light can be improved, and the problem that the collected fingerprint image is partially lost or inaccurate due to uneven illumination is solved.
In this embodiment, first camera 3 is used for realizing shooting function and fingerprint identification function, so first camera 3 can possess wide angle characteristic and macro imaging characteristic simultaneously, and wherein, the distance scope of macro imaging is 0.01 ~ 0.1mm, when can making first camera 3 be in the fingerprint identification mode, can clearly gather fingerprint image comprehensively.
As shown in fig. 4, the housing 2 is provided with an accommodating portion 22, one side of the accommodating portion 22 away from the first lens 1 is provided with an accommodating space 222, at least a portion of the first camera 3 can be accommodated in the accommodating space 222, the light compensation groove 21 is disposed around the outside of the accommodating portion 22, and one end of the accommodating portion 22 close to the first lens 1 is provided with a light hole, which is the light transmission region 221. Light supplementing groove 21 and the space intercommunication of light trap top, light can follow light supplementing groove 21 and reach the top of light trap, and the first lens 1 that will be covered by the finger is lighted, and simultaneously, the light of finger fingerprint regional reflection can be followed the light trap and jeted into first camera 3, has ensured the noncongestion of light path.
Specifically, as shown in fig. 5, the portion of the accommodating portion 22 is the inner wall 212 of the light compensation groove 21, that is, the accommodating portion 22 and the light compensation groove 21 have a common partial wall surface, so that the overall volume of the housing 2 can be reduced. In addition, the height of the outer side wall 213 of the light supplementing groove 21 is greater than the height of the inner side wall 212 of the light supplementing groove 21, namely, the outer side wall 213 of the light supplementing groove 21 is higher than the top end of the accommodating part 22, by adopting the structural design, the distance between the light hole and the first lens 1 can be increased, namely, the space volume of the light hole above the light hole communicated with the light supplementing groove 21 is enlarged, a larger diffusion space is provided for light in the light supplementing groove 21, and therefore the uniformity of illumination is improved.
In this embodiment, the light compensating groove 21 is a circular ring structure, which can ensure that the illumination light uniformly irradiates the fingerprint area covered on the first lens 1; the light hole is a circular structure concentric with the light supplementing groove 21 and can correspond to the middle position of the first lens 1, so that light reflected by the fingerprint area can be uniformly emitted to the light hole and is emitted into the first camera 3 through the light hole. In addition, the diameter of the light supplementing groove 21 is large, the area of a formed light supplementing area is large, light spots generated due to light gathering can be avoided, and the illumination uniformity during light supplementing is further improved.
In a specific embodiment, as shown in fig. 5, the flash through hole 211 is disposed on the bottom wall 214 of the light compensation groove 21, and the flash is disposed in the flash through hole 211 and can be fixedly connected by gluing, welding or screwing, and at this time, the flash does not occupy the rest space inside the casing 2, which is beneficial to reducing the volume of the casing 2. And compare in and set up the flash lamp in the below of flash lamp through-hole 211, set up the flash lamp in flash lamp through-hole 211, can guarantee that more light enters into in the light supplement groove 21 to sufficient light source has been ensured.
Specifically, as shown in fig. 3, a plurality of flash lamp through holes 211 are uniformly arranged on the annular light compensation groove 21, and each flash lamp through hole 211 is internally provided with a flash lamp, and the flash lamps are simultaneously opened to improve the illumination intensity during light compensation, and in addition, the flash lamp through holes 211 are uniformly arranged on the annular light compensation groove 21, so that the uniformity of light distribution in the light compensation groove 21 can be ensured, and the uniformity of light intensity irradiated to the fingerprint region of the finger can be ensured. Wherein, this application does not do the restriction to the specific quantity of flash lamp through-hole 211, only need guarantee a plurality of flash lamp through-holes 211 can follow the groove of making up light 21 even setting can.
And the height H of one end of the first lens 1 close to the first camera 3 from the surface of the flash lamp is calculated to satisfy the following conditions: h is 0.05mm ≦ H ≦ 1mm, specifically, H may be 0.05mm, 0.06mm, 0.08mm, 1mm, or the like. As shown in fig. 4, when the flash is disposed in the flash through hole 211, the surface of the flash is flush with the bottom wall 214, and the first lens 1 directly covers the top of the housing 2, the height of the outer sidewall 213 of the light compensation groove 21 is the height H from the end of the first lens 1 close to the first camera 3 to the surface of the flash, at this time, the light in the space above the light transmission hole is sufficient, so as to provide uniform illumination for the fingerprint area covering the first lens 1, and reduce the height of the housing 2 to the greatest extent, and reduce the volume of the fingerprint module.
In this embodiment, the end of the first lens 1 away from the first camera 3 is used for contacting with the finger of the user, and frequent touching may cause the contact surface to be covered by oil stains, thereby affecting the light transmittance of the first lens 1 and affecting the normal operation of the first camera 3. Therefore, can keep away from the one end of first camera 3 at first lens 1 and set up Anti-Fingerprint coating film layer (Anti-Fingerprint, AF), this coating film layer possesses certain hardness, can reduce the injury that nail scraping, cloth friction and hard thing collision brought to possess advantages such as dampproofing and waterproofing, antifriction, antifouling anticorrosion, easy cleanness, consequently, set up Anti-Fingerprint coating film layer and can improve the Anti-Fingerprint ability and the Anti-soil ability of first lens 1 and still easily clean simultaneously.
In a specific embodiment, the fingerprint module is provided with a pressure sensor for sensing the pressure applied to the first lens 1. In a normal state, the first camera 3 is in a photographing mode, when a finger of a user presses on the first lens 1, the pressure sensor can sense the pressure applied to the first lens 1, if the pressure value is larger than a preset value, the pressing of the finger is judged to be effective pressing, at the moment, the processor of the electronic equipment can control the first camera 3 to switch to a fingerprint identification mode, and meanwhile, the flash lamp is controlled to provide sufficient illumination for a fingerprint acquisition process; if the pressure value is smaller than the preset value, it is determined that the pressing of the finger is invalid, and at this time, the processor of the electronic device can control the first camera 3 to continue to be in the photographing mode. Therefore, the pressure sensor can improve the problem of false triggering of a fingerprint identification mode, fingerprint identification can be performed only when enough pressing pressure is sensed, and the reliability of a fingerprint identification function is improved.
Wherein, the pressure sensor of the present application can be disposed inside the first camera 3.
As shown in fig. 6, the present application further provides a control method of a fingerprint module, where the fingerprint module is the fingerprint module described in any of the above embodiments, an execution main body of the control method may be the processor 110, and the control method includes:
In this step, first camera 3 carries out the photo and shoots the function to, when external environment's light is less strong, can control the flash light and accomplish instantaneous flash of light, provide the light filling effect for first camera 3.
And 102, in the fingerprint identification mode, controlling a flash lamp to provide illumination for the first camera 3, and controlling the first camera 3 to shoot images.
In this step, the flash lamp is controlled to be normally open to provide illumination for the first camera 3, and meanwhile, the first camera 3 executes a fingerprint identification function to collect an image of a fingerprint covering the first lens 1.
In this embodiment, by adopting the control method, the working states of the first camera 3 and the flash lamp can be respectively controlled in two modes, so that the fingerprint module has two functions of shooting and fingerprint identification, and the design cost of the electronic device is reduced.
In one embodiment, the control method further comprises:
In this step: the Processor of the electronic device can control the first camera 3 to transmit data to the Processor with a first bandwidth in the photographing mode, for example, the first bandwidth is greater than 1Mbps, so that the ISP can process the image photographed by the first camera 3, and for example, in the photographing mode, the image can be transmitted through a Mobile Industry Processor Interface (MIPI) protocol.
And 104, in the fingerprint identification mode, controlling the first camera 3 to transmit the shot image at a second bandwidth, wherein the first bandwidth is greater than the second bandwidth.
In this step, the processor of the electronic device can control the first camera 3 to transmit data to the processor in the second bandwidth in the fingerprint identification mode. In the fingerprint identification mode, the electronic device has low requirements for the resolution of the image, and therefore, the second bandwidth is smaller than the first bandwidth, for example, the second bandwidth is smaller than 100 kbps.
For the first camera 3, no matter in the photographing mode or in the fingerprint recognition mode, the light is sensed by the image sensor and is subjected to photoelectric conversion, but for the fingerprint recognition, abundant image details are not required, and only an image of a fingerprint can be recognized, so that in the fingerprint recognition mode, the information requirement on the image is less, the amount of transmitted data is less, and thus, the data can be transmitted by using a smaller bandwidth; for the photographing mode, rich image details are needed to form the final image, i.e. the needed image details are rich, larger image information is needed, the amount of transmitted data is larger, and therefore, larger bandwidth can be used to transmit data.
In one embodiment, as shown in fig. 7, before controlling the flash to provide illumination for the first camera 3 and control the process of the first camera 3 to capture images in step 102, the control method further includes:
As shown in fig. 8, fig. 8 is a software architecture diagram of an input subsystem in an embodiment of the present application, and includes an application layer, a user space, a kernel space, and a hardware layer, where a driver layer is responsible for a specific hardware device, converts a hardware input at a bottom layer into a uniform event form, reports the event form to a core layer, the core layer is connected to the driver layer and an event processing layer, provides an interface of the driver layer downward, and provides an interface of the event processing layer upward, the event processing layer provides a user access and a processing interface for different hardware types, reports an event transmitted from the driver layer to a device access node of the user space, and the device access node serves as a bridge between the application and a device driver, and is used to transmit a device access to the application.
For example, the electronic device determines that the user enters the camera application according to the reported event, determines that the user needs to use the first camera 3 to take a picture, controls the first camera 3 to enter a picture taking mode, and executes step 101 and step 103 according to the operation of the user; for another example, the electronic device determines that the user enters a bank application program according to the reported event, and needs to perform fingerprint identification to verify the identity of the user, then controls the first camera 3 to enter a fingerprint identification mode, that is, step 201 is performed to obtain the pressure on the first lens sensed by the pressure sensor, and step 202 is performed to determine the pressure, only when the pressure is determined to be greater than the preset value, it is determined that the user has pressed a finger on the first lens 1 of the fingerprint module, and then step 102 and step 104 are performed to implement the fingerprint identification function.
In addition, the embodiment of the present application further provides an electronic device, as shown in fig. 9 to 11, the electronic device includes a main body 4, a rear cover 5, and the fingerprint module and the processor described in the foregoing embodiments. Wherein, 5 locks of back lid in main part 4, are provided with mounting groove 41 in the main part 4, and the fingerprint module is fixed in mounting groove 41 in, and first lens 1 sets up towards back lid 5.
This application does not do the restriction to the concrete position of fingerprint module on electronic equipment, as shown in fig. 9 and 10, the fingerprint module can set up in the upper end intermediate position at the electronic equipment back, as shown in fig. 12 and 13, the fingerprint module can set up in the upper end at the electronic equipment back position to the left, perhaps, as shown in fig. 14 and 15, the fingerprint module can also set up in the upper end at the electronic equipment back position to the right.
In this application, the fingerprint module can realize electronic equipment's shooting function and fingerprint identification function under the control of treater, because this fingerprint module has above-mentioned technological effect, the electronic equipment including this fingerprint module also should have corresponding technological effect, and here is no longer repeated.
The electronic device further comprises a camera decoration 6, the rear cover 5 is provided with a mounting hole 51, the camera decoration 6 is fixed to the mounting hole 51, and the housing 2 is clamped between the camera decoration 6 and the main body 4. Camera decoration 6 is installed on back lid 5, can play certain sealed effect to the fingerprint module, improves electronic equipment's waterproof and dustproof performance. In addition, camera decoration 6 is provided with first lens through-hole 61, and first lens through-hole 61 communicates with light supplementing groove 21, and at least part embedding of first lens 1 is in first lens through-hole 61, installs first lens 1 on camera decoration 6, makes the position of first lens 1 protruding to the outside for back lid 5, and the user of being convenient for presses the use, can improve electronic equipment's user experience.
In addition, the electronic device further includes a second camera 7 and a second lens 8, the second camera 7 is disposed above the first camera 3, that is, the second camera 7 is closer to the upper end edge of the electronic device than the mounting position of the first camera 3. The camera decoration 6 is further provided with a second lens through hole 62, and at least part of the second lens 8 is embedded into the second lens through hole 62, and the second camera 7 can shoot through the second lens 8. Specifically, still be provided with camera support holder 9 in mounting groove 41 for the bottom of first camera 3 and second camera 7 provides the support, simultaneously, camera support holder 9 can cooperate with casing 2, carries on spacingly to first camera 3 and second camera 7. In this application, the structural design of two cameras can satisfy the different shooting demands of user.
It can be understood by those skilled in the art that the structure illustrated in the embodiments of the present application does not constitute a specific limitation to the electronic device. In other possible embodiments of the present application, the electronic device may include more components than those shown, or combine certain components, or split certain components, or a different arrangement of components.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (16)
1. The utility model provides a fingerprint module, its characterized in that, the fingerprint module includes:
a first lens;
the lens comprises a shell, wherein one end of the shell is provided with a light supplementing groove, the light supplementing groove faces towards the first lens, the first lens covers the light supplementing groove, the shell is provided with a light transmitting area, the light supplementing groove is of an annular structure surrounding the light transmitting area, and the light supplementing groove is provided with a flash lamp through hole;
the first camera is positioned on one side, far away from the first lens, of the shell, and faces the light-transmitting area;
and the flash lamp is arranged in the shell and used for providing illumination for the first camera.
2. The fingerprint module of claim 1, wherein the housing is provided with a receiving portion for receiving at least a portion of the first camera, and an end of the receiving portion near the first lens is provided with a light-transmitting hole, and the light-transmitting hole is the light-transmitting area;
the light supplementing groove is arranged on the outer side of the accommodating part in a surrounding mode.
3. The fingerprint module of claim 2, wherein the receiving portion is an inner sidewall of the light compensating groove, and a height of an outer sidewall of the light compensating groove is greater than a height of an inner sidewall of the light compensating groove.
4. The fingerprint module of claim 2, wherein the light hole is circular and concentric with the light filling groove.
5. The fingerprint module of claim 3, wherein the flash through hole is disposed on a bottom wall of the light compensation groove, and the flash is disposed on the flash through hole.
6. The fingerprint module of claim 5, wherein the light compensating groove is provided with a plurality of flash lamp through holes, and the flash lamp through holes are uniformly arranged along the annular structure;
the fingerprint module includes with every the flash lamp through-hole corresponds the flash lamp.
7. The fingerprint module of claim 6, wherein a height H from the surface of the flash to an end of the first lens near the first camera satisfies: h is more than or equal to 0.05mm and less than or equal to 1 mm.
8. The fingerprint module of claim 1, wherein an end of the first lens away from the first camera is provided with a fingerprint-resistant coating.
9. The fingerprint module of claim 1, wherein the fingerprint module is provided with a pressure sensor for sensing the pressure to which the first lens is subjected.
10. A method for controlling a fingerprint module, wherein the fingerprint module is the fingerprint module of any one of claims 1 to 9, the method comprising:
in a shooting mode, controlling the first camera to shoot images;
and under a fingerprint identification mode, controlling the flash lamp to provide illumination for the first camera and controlling the first camera to shoot images.
11. The method for controlling a fingerprint module of claim 10, further comprising:
in the photographing mode, controlling the first camera to transmit a photographed image in a first bandwidth;
and in the fingerprint identification mode, controlling the first camera to transmit the shot image at a second bandwidth, wherein the first bandwidth is larger than the second bandwidth.
12. The control method of the fingerprint module according to claim 10, wherein the fingerprint module is provided with a pressure sensor for sensing the pressure applied to the first lens;
in the fingerprint identification mode, before the controlling the flash to provide illumination for the first camera and controlling the process of the first camera to shoot images, the method further comprises:
and acquiring the pressure on the first lens sensed by the pressure sensor, and controlling the flash lamp to provide illumination for the first camera and control the first camera to shoot images if the pressure is greater than a preset value.
13. An electronic device, characterized in that the electronic device comprises:
a main body provided with a mounting groove;
a rear cover buckled with the main body;
the fingerprint module is fixed in the mounting groove, the fingerprint module be claim 1-9 any one the fingerprint module.
14. The electronic device of claim 13, further comprising a camera trim piece,
the rear cover is provided with a mounting hole, and the camera decorating part is fixed in the mounting hole;
the casing centre gripping in the camera decoration with between the main part.
15. The electronic device of claim 14, wherein the camera trim is provided with a first lens through hole, and the first lens through hole is communicated with the light supplementing groove;
at least a portion of the first lens is embedded in the first lens through hole.
16. The electronic device of any of claims 13-15, further comprising:
a processor for performing the method of controlling a fingerprint module of any one of claims 10 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210531934.2A CN114926868A (en) | 2022-05-16 | 2022-05-16 | Fingerprint module, control method of fingerprint module and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210531934.2A CN114926868A (en) | 2022-05-16 | 2022-05-16 | Fingerprint module, control method of fingerprint module and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114926868A true CN114926868A (en) | 2022-08-19 |
Family
ID=82808315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210531934.2A Pending CN114926868A (en) | 2022-05-16 | 2022-05-16 | Fingerprint module, control method of fingerprint module and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114926868A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107529002A (en) * | 2017-09-26 | 2017-12-29 | 广东欧珀移动通信有限公司 | Camera module and mobile terminal |
| CN209823799U (en) * | 2019-03-19 | 2019-12-20 | Oppo广东移动通信有限公司 | Mobile terminal and mobile phone middle frame |
| CN111092977A (en) * | 2019-12-31 | 2020-05-01 | 维沃移动通信有限公司 | Electronic device |
| CN111414865A (en) * | 2020-03-23 | 2020-07-14 | Oppo（重庆）智能科技有限公司 | Photographing and fingerprint identification method and electronic equipment |
| WO2021147020A1 (en) * | 2020-01-22 | 2021-07-29 | 深圳市汇顶科技股份有限公司 | Fingerprint recognition device and electronic apparatus |
| US20220150387A1 (en) * | 2019-06-05 | 2022-05-12 | Sichuan Energy Internet Research Institute, Tsinghua University | Photographing Apparatus and Inspection Device |
-
2022
- 2022-05-16 CN CN202210531934.2A patent/CN114926868A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107529002A (en) * | 2017-09-26 | 2017-12-29 | 广东欧珀移动通信有限公司 | Camera module and mobile terminal |
| CN209823799U (en) * | 2019-03-19 | 2019-12-20 | Oppo广东移动通信有限公司 | Mobile terminal and mobile phone middle frame |
| US20220150387A1 (en) * | 2019-06-05 | 2022-05-12 | Sichuan Energy Internet Research Institute, Tsinghua University | Photographing Apparatus and Inspection Device |
| CN111092977A (en) * | 2019-12-31 | 2020-05-01 | 维沃移动通信有限公司 | Electronic device |
| WO2021147020A1 (en) * | 2020-01-22 | 2021-07-29 | 深圳市汇顶科技股份有限公司 | Fingerprint recognition device and electronic apparatus |
| CN111414865A (en) * | 2020-03-23 | 2020-07-14 | Oppo（重庆）智能科技有限公司 | Photographing and fingerprint identification method and electronic equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101016420B1 (en) | Non contacting finger vein image capturing device and portable mobile having the same | |
| EP3562131B1 (en) | Display screen state control method and apparatus, storage medium, and electronic device | |
| CN108989700A (en) | Image formation control method, device, electronic equipment and computer readable storage medium | |
| CN108900782A (en) | Exposal control method, device and electronic equipment | |
| CN104488258A (en) | Method and apparatus for dual camera shutter | |
| CN108965728B (en) | Brightness adjusting method and terminal | |
| CN109040523B (en) | Artifact eliminating method and device, storage medium and terminal | |
| KR102344104B1 (en) | The Electronic Device Controlling the Effect for Displaying of the Image and Method for Displaying the Image | |
| US11159739B2 (en) | Apparatus and method for generating moving image data including multiple section images in electronic device | |
| CN110062159A (en) | Image processing method, device, electronic equipment based on multiple image | |
| CN107370917B (en) | Control method, electronic device, and computer-readable storage medium | |
| CN108833803A (en) | Imaging method, device and electronic equipment | |
| CN110519485A (en) | Image processing method, device, storage medium and electronic equipment | |
| WO2023005298A1 (en) | Image content masking method and apparatus based on multiple cameras | |
| CN114095666A (en) | Photographing method, electronic device and computer-readable storage medium | |
| CN106954022B (en) | Image processing method, device and terminal | |
| US20130324190A1 (en) | Multi-purpose camera system supporting normal camera functionality and additional user input functionality | |
| CN109561291A (en) | Color temperature compensating method, device, storage medium and mobile terminal | |
| CN114926868A (en) | Fingerprint module, control method of fingerprint module and electronic equipment | |
| CN109040729A (en) | Image white balance correcting, device, storage medium and terminal | |
| KR20190104796A (en) | Method for generating plural information using camera to sense plural wave bandwidth and apparatus thereof | |
| US20210019869A1 (en) | Method for synthesizing image on reflective object on basis of attribute of reflective object included in different image, and electronic device | |
| KR102493028B1 (en) | An electronic device and a method for acquiring an image corresponding to infra-red using a camera module comprising a lens capable of absolving visible light | |
| CN115589539A (en) | Image adjusting method, device and storage medium | |
| CN115988339B (en) | Image processing method, electronic device, storage medium, and program product |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |