CN109241953B - Electronic device and fingerprint image processing method - Google Patents
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- CN109241953B CN109241953B CN201811280531.5A CN201811280531A CN109241953B CN 109241953 B CN109241953 B CN 109241953B CN 201811280531 A CN201811280531 A CN 201811280531A CN 109241953 B CN109241953 B CN 109241953B
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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
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Abstract
The embodiment of the application discloses electronic equipment, a fingerprint image processing method and related products, wherein the electronic equipment comprises a screen provided with a first polaroid, a second polaroid and an optical fingerprint identification module, the second polaroid is arranged below the screen, the optical fingerprint identification module is arranged below the second polaroid, and the polarization directions of the first polaroid and the second polaroid are consistent; the first polaroid and the second polaroid are used for filtering the first optical noise; the second polaroid is used for filtering second optical noise; the first optical noise is from screen light of the screen and irradiates light of the optical fingerprint identification module; the second optical noise is screen light from the screen, and irradiates light far away from the optical fingerprint identification module and is reflected by the glass cover plate outside the screen. By adopting the embodiment of the application, the influence of screen light on fingerprint image imaging can be reduced, and the fingerprint acquisition efficiency can be improved.
Description
Technical Field
The application relates to the technical field of electronic equipment, in particular to electronic equipment, a fingerprint image processing method and related products.
Background
Along with the wide popularization and application of electronic devices (such as mobile phones, tablet computers and the like), the electronic devices can support more and more applications, have more and more functions, and develop towards diversification and individuation, so that the electronic devices become indispensable electronic articles in the life of users.
The fingerprint identification technology also becomes the standard technology of electronic equipment, along with the development of the fingerprint identification technology, the optical fingerprint identification module is popular at present, and the optical fingerprint identification module can be well integrated below a screen, however, the optical fingerprint identification module is luminous due to the screen, and screen light causes certain interference to fingerprint image imaging to a certain extent, so that the fingerprint acquisition efficiency is reduced.
Disclosure of Invention
The embodiment of the application provides electronic equipment, a fingerprint image processing method and related products, which can reduce the influence of screen light on fingerprint image imaging and are beneficial to improving fingerprint acquisition efficiency.
In a first aspect, an embodiment of the present application provides an electronic device, where the electronic device includes a screen provided with a first polarizer, a second polarizer, and an optical fingerprint identification module, the second polarizer is disposed below the screen, the optical fingerprint identification module is disposed below the second polarizer, and polarization directions of the first polarizer and the second polarizer are consistent;
the first polaroid and the second polaroid are used for filtering first optical noise;
the second polaroid is used for filtering second optical noise;
the first optical noise is from screen light of the screen and irradiates to light of the optical fingerprint identification module; the second optical noise is screen light from the screen, and irradiates light far away from the optical fingerprint identification module and is reflected by the glass cover plate outside the screen.
In a second aspect, an embodiment of the present application provides a fingerprint image processing method, which is applied to an electronic device, where the electronic device includes a screen provided with a first polarizer, a second polarizer, and an optical fingerprint identification module, the second polarizer is provided below the screen, the optical fingerprint identification module is provided below the second polarizer, and a polarization direction of the first polarizer is consistent with a polarization direction of the second polarizer; the method comprises the following steps:
when a fingerprint acquisition instruction is detected, the screen is lightened, the optical fingerprint identification module is started, wherein first optical noise corresponding to the emitted light of the screen is filtered by the first polaroid and the second polaroid, second optical noise corresponding to the emitted light of the screen is filtered by the second polaroid, and the first optical noise is from screen light of the screen and irradiates to the light of the optical fingerprint identification module; the second optical noise is screen light from the screen, and irradiates light far away from the optical fingerprint identification module and is reflected by the glass cover plate outside the screen;
and collecting the light reflected by the user fingerprint by the screen light through the optical fingerprint identification module, and processing the light to obtain a fingerprint image.
In a second aspect, an embodiment of the present application provides a fingerprint image processing device, which is applied to an electronic device, where the electronic device includes a screen provided with a first polarizer, a second polarizer, and an optical fingerprint identification module, the second polarizer is disposed below the screen, the optical fingerprint identification module is disposed below the second polarizer, and polarization directions of the first polarizer and the second polarizer are consistent; the device comprises: a starting unit and a processing unit, wherein,
the starting unit is used for lighting the screen and starting the optical fingerprint identification module when a fingerprint acquisition instruction is detected, wherein first optical noise corresponding to the emitted light of the screen is filtered by the first polaroid and the second polaroid, second optical noise corresponding to the emitted light of the screen is filtered by the second polaroid, and the first optical noise is from screen light of the screen and irradiates to the light of the optical fingerprint identification module; the second optical noise is screen light from the screen, and irradiates light far away from the optical fingerprint identification module and is reflected by the glass cover plate outside the screen;
the processing unit is used for collecting the light rays reflected by the user fingerprint of the screen light through the optical fingerprint identification module, and obtaining a fingerprint image after processing.
In a third aspect, embodiments of the present application provide an electronic device comprising a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, the programs comprising instructions for performing the steps in the second aspect of embodiments of the present application.
In a fourth aspect, embodiments of the present application provide a computer-readable storage medium, where the computer-readable storage medium stores a computer program for electronic data exchange, where the computer program causes a computer to perform some or all of the steps as described in the second aspect of the embodiments of the present application.
In a fifth aspect, embodiments of the present application provide a computer program product, wherein the computer program product comprises a non-transitory computer readable storage medium storing a computer program operable to cause a computer to perform some or all of the steps as described in the second aspect of embodiments of the present application. The computer program product may be a software installation package.
It can be seen that, in the electronic device, the fingerprint image processing method and the related products described in the embodiments of the present application, the electronic device includes a screen provided with a first polarizer, a second polarizer, and an optical fingerprint recognition module, the second polarizer is disposed below the screen, the optical fingerprint recognition module is disposed below the second polarizer, the polarization directions of the first polarizer and the second polarizer are consistent, the first polarizer and the second polarizer are used for filtering first optical noise, the second polarizer is used for filtering second optical noise, the first optical noise is from screen light of the screen, and the first optical noise is directed to light of the optical fingerprint recognition module; the second optical noise is the screen light from the screen, the light which irradiates to the outside glass cover plate far away from the optical fingerprint identification module and is reflected by the outside glass cover plate of the screen, therefore, the polaroid is added at the bottom of the screen, the polarization direction is the same as the polarization direction on the display layer, the light of the first optical noise can be directly attenuated by half, the polarization direction of the light of the second optical noise can be changed after the light passes through the screen medium, the light can be attenuated after the light passes through the polaroid at the bottom of the screen, and the correct fingerprint image light can not be lost because of the same direction of the two layers of polaroids.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of another electronic device according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of another electronic device according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of an optical fingerprint identification module according to an embodiment of the present application;
FIG. 5 is a schematic illustration of a polarizer according to an embodiment of the present disclosure;
fig. 6 is a schematic flow chart of another electronic device according to an embodiment of the present application;
fig. 7 is a schematic diagram illustrating a fingerprint collection area of an electronic device according to an embodiment of the present application;
fig. 8 is a flowchart of a fingerprint image processing method according to an embodiment of the present application;
fig. 9 is a schematic structural diagram of another electronic device according to an embodiment of the present application;
fig. 10 is a functional unit block diagram of a fingerprint image processing device according to an embodiment of the present application.
Detailed Description
In order to make the present application solution better understood by those skilled in the art, the following description will clearly and completely describe the technical solution in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
The terms first, second and the like in the description and in the claims of the present application and in the above-described figures, are used for distinguishing between different objects and not for describing a particular sequential order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
The electronic device according to the embodiment of the present application may include various handheld devices, vehicle-mounted devices, wearable devices (smart watches, smart bracelets, wireless headphones, augmented reality/virtual reality devices, smart glasses), computing devices or other processing devices connected to a wireless modem, and various forms of User Equipment (UE), mobile Stations (MS), terminal devices (terminal devices), and so on, which have wireless communication functions. For convenience of description, the above-mentioned devices are collectively referred to as electronic devices.
The embodiments of the present application are described in detail below.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an electronic device disclosed in an embodiment of the present application, where the electronic device 100 includes a storage and processing circuit 110, and a sensor 170 connected to the storage and processing circuit 110, and the sensor 170 includes a camera, where:
the electronic device 100 may include control circuitry that may include storage and processing circuitry 110. The storage and processing circuit 110 may be a memory such as a hard drive memory, a non-volatile memory (e.g., flash memory or other electronically programmable read only memory used to form a solid state drive, etc.), a volatile memory (e.g., static or dynamic random access memory, etc.), etc., as embodiments of the present application are not limited. Processing circuitry in the storage and processing circuitry 110 may be used to control the operation of the electronic device 100. The processing circuitry may be implemented based on one or more microprocessors, microcontrollers, digital signal processors, baseband processors, power management units, audio codec chips, application specific integrated circuits, display driver integrated circuits, and the like.
The storage and processing circuitry 110 may be used to run software in the electronic device 100, such as internet browsing applications, voice over internet protocol (Voice over Internet Protocol, VOIP) telephone call applications, email applications, media playing applications, operating system functions, and the like. Such software may be used to perform some control operations, such as image acquisition based on a camera, ambient light measurement based on an ambient light sensor, proximity sensor measurement based on a proximity sensor, information display functions implemented based on status indicators such as status indicators of light emitting diodes, touch event detection based on a touch sensor, functions associated with displaying information on multiple (e.g., layered) screens, operations associated with performing wireless communication functions, operations associated with collecting and generating audio signals, control operations associated with collecting and processing button press event data, and other functions in electronic device 100, to name a few.
The electronic device 100 may include an input-output circuit 150. The input-output circuit 150 is operable to cause the electronic device 100 to effect input and output of data, i.e., to allow the electronic device 100 to receive data from an external device and also to allow the electronic device 100 to output data from the electronic device 100 to an external device. The input-output circuit 150 may further include a sensor 170. The sensor 170 may include an ambient light sensor, a proximity sensor based on light and capacitance, an optical fingerprint recognition module, a touch sensor (e.g., based on an optical touch sensor and/or a capacitive touch sensor, where the touch sensor may be part of a touch display screen or may be used independently as a touch sensor structure), an acceleration sensor, a camera, and other sensors, etc., and the camera may be a front camera or a rear camera, and the optical fingerprint recognition module may be integrated under the screen for capturing fingerprint images.
The input-output circuit 150 may also include one or more screens, such as screen 130. The screen 130 may include one or a combination of several of a liquid crystal display, an organic light emitting diode display, an electronic ink display, a plasma display, and a display using other display technologies. The screen 130 may include an array of touch sensors (i.e., the screen 130 may be a touch-sensitive display screen). The touch sensor may be a capacitive touch sensor formed of an array of transparent touch sensor electrodes, such as Indium Tin Oxide (ITO) electrodes, or may be a touch sensor formed using other touch technologies, such as acoustic wave touch, pressure sensitive touch, resistive touch, optical touch, etc., as embodiments of the present application are not limited.
The electronic device 100 may also include an audio component 140. The audio component 140 may be used to provide audio input and output functionality for the electronic device 100. The audio components 140 in the electronic device 100 may include speakers, microphones, buzzers, tone generators, and other components for generating and detecting sound.
The communication circuitry 120 may be used to provide the electronic device 100 with the ability to communicate with external devices. The communication circuit 120 may include analog and digital input-output interface circuits, and wireless communication circuits based on radio frequency signals and/or optical signals. The wireless communication circuitry in the communication circuitry 120 may include radio frequency transceiver circuitry, power amplifier circuitry, low noise amplifiers, switches, filters, and antennas. For example, the wireless communication circuitry in the communication circuitry 120 may include circuitry for supporting near field communication (Near Field Communication, NFC) by transmitting and receiving near field coupled electromagnetic signals. For example, the communication circuit 120 may include a near field communication antenna and a near field communication transceiver. The communication circuit 120 may also include a cellular telephone transceiver and antenna, a wireless local area network transceiver circuit and antenna, and the like.
The electronic device 100 may further include a battery, power management circuitry, and other input-output units 160. The input-output unit 160 may include buttons, levers, click wheels, scroll wheels, touch pads, keypads, keyboards, cameras, light emitting diodes, and other status indicators, etc.
A user may control the operation of the electronic device 100 by inputting commands through the input-output circuit 150, and may use output data of the input-output circuit 150 to enable receiving status information and other outputs from the electronic device 100.
In the related art, referring to fig. 2, fig. 2 is a schematic structural diagram of an electronic device 200, wherein 201 is a screen, 202 is an optical fingerprint recognition module, 21 is a glass cover plate outside the screen, and the optical fingerprint recognition module 202 can be well integrated below the screen 21, and the main working principle thereof is as follows: utilize screen self luminescence, when the finger is put on the screen, the self luminescence takes place the reflection when arriving the finger, optical fingerprint recognition module receives the light signal of reflection, because the uneven line of fingerprint, the light absorption range is different, thereby obtain the fingerprint image of light and shade difference, but, screen luminescence can let optical fingerprint recognition module realize fingerprint image acquisition on the one hand, on the other hand, also can make some optical noise, specifically, can include first optical noise and second optical noise, first optical noise comes from the screen light of screen, and the light of orientation optical fingerprint recognition module, the second optical noise is the screen light that comes from the screen, to keeping away from the optical fingerprint recognition module and shines and the light of reflection via screen outside glass apron, because first optical noise and second optical noise's existence, lead to fingerprint image acquisition inefficiency.
Referring to fig. 3, fig. 3 is a schematic structural diagram of another electronic device disclosed in the embodiment of the present application, where the electronic device 300 includes a screen 301 provided with a first polarizer, a second polarizer 302, and an optical fingerprint recognition module 303, the second polarizer 302 is disposed below the screen 301, the optical fingerprint recognition module 303 is disposed below the second polarizer 302, and polarization directions of the first polarizer and the second polarizer 303 are consistent;
the first polarizer and the second polarizer 102 are used for filtering first optical noise;
the second polaroid is used for filtering second optical noise;
the first optical noise is from screen light of the screen and irradiates to light of the optical fingerprint identification module; the second optical noise is a light beam from the screen, which irradiates the optical fingerprint recognition module far away from the screen and is reflected by the glass cover plate 31 outside the screen.
In this embodiment, a Polarizer (Polarizer) is called a Polarizer, and may control the polarization direction of a specific light beam. When natural light passes through the polaroid, light with the vibration direction perpendicular to the transmission axis of the polaroid is absorbed, and only polarized light with the vibration direction parallel to the transmission axis of the polaroid remains in the transmitted light. In general, a polarizer, i.e., a first polarizer, is also disposed in a stacked layer of a screen of an electronic device, and above a display layer, the function is to reduce reflection of external light, to avoid whitening of the screen display, and of course, light of an optical fingerprint is attenuated after passing through the polarizer.
In one possible example, the second polarizer 302 is integrally disposed with the screen 301, or is disposed in a stack.
The size of the second polarizer may be identical to the size of the screen, or the size of the second polarizer may be smaller than that of the first polarizer, but the second polarizer may completely cover the optical fingerprint identification module.
In one possible example, as shown in fig. 4, fig. 4 is a schematic structural diagram of the optical fingerprint recognition module 303 shown in fig. 3, where the optical fingerprint recognition module 303 includes a collimating lens 41, an infrared IR film 42, and an optical fingerprint sensor 43, the second polarizer 302 is disposed above the collimating lens 41, and the infrared IR42 film is disposed on a surface of the optical fingerprint sensor 43.
Wherein the infrared IR film is used to filter infrared light. The collimating lens is capable of converting light from each point in the aperture stop into a parallel beam of collimated light. The optical fingerprint sensor is used for realizing fingerprint imaging.
In a specific implementation, as shown in fig. 5, fig. 5 shows a schematic illustration of a polarizer, and in the electronic device shown in fig. 3, the first polarizer can absorb light vibration in a specific direction in the first optical noise and the second optical noise, so that the first optical noise and the second optical noise are attenuated, meanwhile, since the second polarizer is consistent with the first polarizer in direction, the second polarizer cannot attenuate light rays emitted by a fingerprint, noise reduction is finally realized, and fingerprint image acquisition accuracy is improved.
In one possible example, the second polarizer 302 is integrally disposed with the optical fingerprint recognition module 303, or is disposed in a stack.
In one possible example, the second polarizer 302 is integrally disposed with the collimating lens 41, or is disposed in a stack.
The integrated arrangement refers to embedding the second polarizer into the collimating lens to form the collimating lens with the polarizing function, and the laminated arrangement refers to superposing a layer of polarizer on the side edge of the collimating lens, which is close to the optical fingerprint sensor.
In a possible example, as shown in fig. 6, fig. 6 is a further modified structure of the electronic device shown in fig. 3, and an improvement is that a third polarizer 44 is added in the optical fingerprint recognition module, the optical fingerprint recognition module 303 includes a collimating lens 41, the third polarizer 44, an infrared IR film 42, and an optical fingerprint sensor 43, the third polarizer 44 is disposed between the IR film 42 and the optical fingerprint sensor 43, and the infrared IR film 42 is disposed on the surface of the optical fingerprint sensor 43.
In a specific implementation, in the electronic device shown in fig. 6, the first polarizer, the second polarizer and the third polarizer can absorb the optical vibration in the specific direction in the first optical noise and the second optical noise, so that the first optical noise and the second optical noise are attenuated, and meanwhile, the second polarizer cannot attenuate the light emitted by the fingerprint because the second polarizer, the third polarizer and the first polarizer are in the same direction, noise reduction is finally realized, and the fingerprint image acquisition accuracy is improved.
In one possible example, the IR film 42 and the third polarizer 44 are integrally disposed, or laminated.
In one possible example, as shown in fig. 7, the optical fingerprint recognition module 303 is located in a preset area under the electronic device, that is, only a partial area under the screen may be used to perform fingerprint collection, and the preset area may also be referred to as a fingerprint collection area.
In one possible example, the screen comprises a liquid crystal display LCD screen or an organic light emitting diode OLED display screen.
In one possible example, the first optical noise and/or the second optical noise is light emitted from the preset area.
It can be seen that, in the electronic device described in the embodiments of the present application, the electronic device includes a screen provided with a first polarizer, a second polarizer, and an optical fingerprint recognition module, the second polarizer is disposed below the screen, the optical fingerprint recognition module is disposed below the second polarizer, the polarization directions of the first polarizer and the second polarizer are consistent, the first polarizer and the second polarizer are used for filtering first optical noise, the second polarizer is used for filtering second optical noise, the first optical noise is from screen light of the screen, and the first optical noise is directed to light of the optical fingerprint recognition module; the second optical noise is the screen light from the screen, the light which irradiates to the outside glass cover plate far away from the optical fingerprint identification module and is reflected by the outside glass cover plate of the screen, therefore, the polaroid is added at the bottom of the screen, the polarization direction is the same as the polarization direction on the display layer, the light of the first optical noise can be directly attenuated by half, the polarization direction of the light of the second optical noise can be changed after the light passes through the screen medium, the light can be attenuated after the light passes through the polaroid at the bottom of the screen, and the correct fingerprint image light can not be lost because of the same direction of the two layers of polaroids.
Referring to fig. 8, fig. 8 is a schematic flow chart of a fingerprint image processing method provided in an embodiment of the present application, as shown in the fig. 1, applied to an electronic device, where the electronic device includes a screen provided with a first polarizer, a second polarizer, and an optical fingerprint recognition module, the second polarizer is disposed below the screen, the optical fingerprint recognition module is disposed below the second polarizer, and polarization directions of the first polarizer and the second polarizer are consistent; the fingerprint image processing method comprises the following steps:
801. when a fingerprint acquisition instruction is detected, the screen is lightened, the optical fingerprint identification module is started, wherein first optical noise corresponding to the emitted light of the screen is filtered by the first polaroid and the second polaroid, second optical noise corresponding to the emitted light of the screen is filtered by the second polaroid, and the first optical noise is from screen light of the screen and irradiates to the light of the optical fingerprint identification module; the second optical noise is screen light from the screen, and irradiates light far away from the optical fingerprint identification module and is reflected by the glass cover plate outside the screen.
The fingerprint acquisition instruction can be generated when the optical fingerprint identification module is detected to be pressed by a user.
802. And collecting the light reflected by the user fingerprint by the screen light through the optical fingerprint identification module, and processing the light to obtain a fingerprint image.
Wherein, can control the optics fingerprint identification module and gather the optics of fingerprint reflection, obtain fingerprint image after processing.
In one possible example, the above step 801 lights up the screen, specifically:
and lighting a preset area of the screen, wherein the preset area is only a fingerprint acquisition area.
The preset area is an area corresponding to the optical fingerprint recognition module corresponding to the lower portion of the setting screen, and specifically, can be understood with reference to fig. 7.
It can be seen that the fingerprint image processing method described in the embodiment of the application is applied to electronic equipment, the electronic equipment comprises a screen provided with a first polaroid, a second polaroid and an optical fingerprint identification module, the second polaroid is arranged below the screen, the optical fingerprint identification module is arranged below the second polaroid, the polarization directions of the first polaroid and the second polaroid are consistent, in the fingerprint acquisition process, the first polaroid and the second polaroid are used for filtering first optical noise, the second polaroid is used for filtering second optical noise, the first optical noise is from screen light of the screen, and the first optical noise is emitted to light rays of the optical fingerprint identification module; the second optical noise is the screen light from the screen, to the light that is far away from optics fingerprint identification module and reflects through the outside glass apron of screen, consequently, also add the polaroid in the screen bottom, and the polarization direction is the same with the polarization direction on the display layer, then can directly attenuate half with the light of first optical noise, and the light of second optical noise can change because after the screen medium, after the polaroid of screen bottom, light also can attenuate, and the exact fingerprint image light is the same because two-layer polaroid direction, so can not cause the loss, can promote fingerprint acquisition efficiency.
In accordance with the above embodiment, referring to fig. 9, fig. 9 is a schematic structural diagram of an electronic device provided in the embodiment of the present application, as shown in the fig. 9, the electronic device includes a processor, a memory, a communication interface, and one or more programs, the electronic device includes an optical fingerprint recognition module, the electronic device further includes a screen provided with a first polarizer, and a second polarizer, the second polarizer is provided below the screen, the optical fingerprint recognition module is provided below the second polarizer, and the polarization directions of the first polarizer and the second polarizer are consistent; wherein the one or more programs are stored in the memory and configured to be executed by the processor, the program comprising instructions for:
when a fingerprint acquisition instruction is detected, the screen is lightened, the optical fingerprint identification module is started, wherein first optical noise corresponding to the emitted light of the screen is filtered by the first polaroid and the second polaroid, second optical noise corresponding to the emitted light of the screen is filtered by the second polaroid, and the first optical noise is from screen light of the screen and irradiates to the light of the optical fingerprint identification module; the second optical noise is screen light from the screen, and irradiates light far away from the optical fingerprint identification module and is reflected by the glass cover plate outside the screen;
and collecting the light reflected by the user fingerprint by the screen light through the optical fingerprint identification module, and processing the light to obtain a fingerprint image.
It can be seen that, in the electronic device described in the embodiments of the present application, the electronic device includes a screen provided with a first polarizer, a second polarizer, and an optical fingerprint recognition module, the second polarizer is disposed below the screen, the optical fingerprint recognition module is disposed below the second polarizer, the polarization directions of the first polarizer and the second polarizer are consistent, the first polarizer and the second polarizer are used for filtering first optical noise, the second polarizer is used for filtering second optical noise, the first optical noise is from screen light of the screen, and the first optical noise is directed to light of the optical fingerprint recognition module; the second optical noise is the screen light from the screen, the light which irradiates to the outside glass cover plate far away from the optical fingerprint identification module and is reflected by the outside glass cover plate of the screen, therefore, the polaroid is added at the bottom of the screen, the polarization direction is the same as the polarization direction on the display layer, the light of the first optical noise can be directly attenuated by half, the polarization direction of the light of the second optical noise can be changed after the light passes through the screen medium, the light can be attenuated after the light passes through the polaroid at the bottom of the screen, and the correct fingerprint image light can not be lost because of the same direction of the two layers of polaroids.
The foregoing description of the embodiments of the present application has been presented primarily in terms of a method-side implementation. It will be appreciated that the electronic device, in order to achieve the above-described functions, includes corresponding hardware structures and/or software modules that perform the respective functions. Those of skill in the art will readily appreciate that the elements and algorithm steps described in connection with the embodiments disclosed herein may be embodied as hardware or a combination of hardware and computer software. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
The embodiment of the application may divide the functional units of the electronic device according to the above method example, for example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated in one processing unit. The integrated units may be implemented in hardware or in software functional units. It should be noted that, in the embodiment of the present application, the division of the units is schematic, which is merely a logic function division, and other division manners may be implemented in actual practice.
Fig. 10 is a functional block diagram of a fingerprint image processing device 1000 according to an embodiment of the present application. The fingerprint image processing device 1000 is applied to electronic equipment, the electronic equipment comprises a screen provided with a first polaroid, a second polaroid and an optical fingerprint identification module, the second polaroid is arranged below the screen, the optical fingerprint identification module is arranged below the second polaroid, and the polarization directions of the first polaroid and the second polaroid are consistent; the apparatus 1000 includes: a start-up unit 1001 and a processing unit 1002, wherein,
the starting unit 1001 is configured to, when a fingerprint acquisition instruction is detected, light the screen, and activate the optical fingerprint identification module, where a first optical noise corresponding to an emitted light of the screen is filtered by the first polarizer and the second polarizer, a second optical noise corresponding to an emitted light of the screen is filtered by the second polarizer, and the first optical noise is from screen light of the screen and is directed to light of the optical fingerprint identification module; the second optical noise is screen light from the screen, and irradiates light far away from the optical fingerprint identification module and is reflected by the glass cover plate outside the screen;
the processing unit 1002 is configured to collect, by using the optical fingerprint recognition module, light reflected by a fingerprint of a user from the screen light, and obtain a fingerprint image after processing.
It can be seen that the fingerprint image processing device described in the embodiments of the present application is applied to an electronic device, where the electronic device includes a screen provided with a first polarizer, a second polarizer, and an optical fingerprint recognition module, the second polarizer is disposed below the screen, the optical fingerprint recognition module is disposed below the second polarizer, the polarization directions of the first polarizer and the second polarizer are consistent, the first polarizer and the second polarizer are used for filtering first optical noise, the second polarizer is used for filtering second optical noise, the first optical noise is from screen light of the screen, and light emitted to the optical fingerprint recognition module; the second optical noise is the screen light from the screen, the light which irradiates to the outside glass cover plate far away from the optical fingerprint identification module and is reflected by the outside glass cover plate of the screen, therefore, the polaroid is added at the bottom of the screen, the polarization direction is the same as the polarization direction on the display layer, the light of the first optical noise can be directly attenuated by half, the polarization direction of the light of the second optical noise can be changed after the light passes through the screen medium, the light can be attenuated after the light passes through the polaroid at the bottom of the screen, and the correct fingerprint image light can not be lost because of the same direction of the two layers of polaroids.
The embodiment of the application also provides a computer storage medium, where the computer storage medium stores a computer program for electronic data exchange, where the computer program causes a computer to execute part or all of the steps of any one of the methods described in the embodiments of the method, where the computer includes an electronic device.
Embodiments of the present application also provide a computer program product comprising a non-transitory computer-readable storage medium storing a computer program operable to cause a computer to perform some or all of the steps of any one of the methods described in the method embodiments above. The computer program product may be a software installation package, said computer comprising an electronic device.
It should be noted that, for simplicity of description, the foregoing method embodiments are all expressed as a series of action combinations, but it should be understood by those skilled in the art that the present application is not limited by the order of actions described, as some steps may be performed in other order or simultaneously in accordance with the present application. Further, those skilled in the art will also appreciate that the embodiments described in the specification are all preferred embodiments, and that the acts and modules referred to are not necessarily required in the present application.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.
In the several embodiments provided in this application, it should be understood that the disclosed apparatus may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, such as the above-described division of units, merely a division of logic functions, and there may be additional manners of dividing in actual implementation, such as multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, or may be in electrical or other forms.
The units described above as separate components may or may not be physically separate, and components shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units described above, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable memory. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution in the form of a software product stored in a memory, including several instructions for causing a computer device (which may be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the above-mentioned method of the various embodiments of the present application. And the aforementioned memory includes: a U-disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing program codes.
Those of ordinary skill in the art will appreciate that all or a portion of the steps in the various methods of the above embodiments may be implemented by a program that instructs associated hardware, and the program may be stored in a computer readable memory, which may include: flash disk, read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic disk or optical disk.
The foregoing has outlined rather broadly the more detailed description of embodiments of the present application, wherein specific examples are provided herein to illustrate the principles and embodiments of the present application, the above examples being provided solely to assist in the understanding of the methods of the present application and the core ideas thereof; meanwhile, as those skilled in the art will have modifications in the specific embodiments and application scope in accordance with the ideas of the present application, the present description should not be construed as limiting the present application in view of the above.
Claims (10)
1. The electronic equipment is characterized by comprising a screen provided with a first polaroid, a second polaroid and an optical fingerprint identification module, wherein the second polaroid is arranged below the screen, the optical fingerprint identification module is arranged below the second polaroid, and the polarization directions of the first polaroid and the second polaroid are consistent;
the first polaroid and the second polaroid are used for filtering first optical noise;
the second polaroid is used for filtering second optical noise;
the first optical noise is from screen light of the screen and irradiates to light of the optical fingerprint identification module; the second optical noise is screen light from the screen, and irradiates light far away from the optical fingerprint identification module and is reflected by the glass cover plate outside the screen;
the optical fingerprint identification module comprises a collimating lens, a third polaroid, an infrared IR film and an optical fingerprint sensor, wherein the third polaroid is arranged between the IR film and the optical fingerprint sensor, the infrared IR film is arranged on the surface of the optical fingerprint sensor, and the polarization directions of the third polaroid and the second polaroid are consistent.
2. The electronic device of claim 1, wherein the second polarizer is integrally disposed with the screen or is disposed in a stack.
3. The electronic device of claim 1 or 2, wherein the optical fingerprint recognition module comprises a collimating lens, an infrared IR film, and an optical fingerprint sensor, the second polarizer is disposed above the collimating lens, and the infrared IR film is disposed on a surface of the optical fingerprint sensor.
4. The electronic device of claim 3, wherein the second polarizer is integrated with the optical fingerprint recognition module or laminated.
5. The electronic device of claim 4, wherein the second polarizer is integrally disposed with the collimating lens, or is disposed in a stack.
6. The electronic device of claim 1 or 2, wherein the optical fingerprint recognition module is located in a predetermined area below the electronic device.
7. The electronic device of claim 6, wherein the first optical noise and/or the second optical noise is light emitted by the predetermined area.
8. The electronic device of claim 1, wherein the IR film and the third polarizer are integrally disposed, or are stacked.
9. The electronic device of claim 1 or 2, wherein the screen comprises a liquid crystal display, LCD, screen or an organic light emitting diode, OLED, display screen.
10. The fingerprint image processing method is characterized by being applied to electronic equipment, wherein the electronic equipment comprises a screen provided with a first polaroid, a second polaroid and an optical fingerprint identification module, the second polaroid is arranged below the screen, the optical fingerprint identification module is arranged below the second polaroid, and the polarization directions of the first polaroid and the second polaroid are consistent; the optical fingerprint identification module comprises a collimating lens, a third polaroid, an infrared IR film and an optical fingerprint sensor, wherein the third polaroid is arranged between the IR film and the optical fingerprint sensor, the infrared IR film is arranged on the surface of the optical fingerprint sensor, and the polarization directions of the third polaroid and the second polaroid are consistent; the method comprises the following steps:
when a fingerprint acquisition instruction is detected, the screen is lightened, the optical fingerprint identification module is started, wherein first optical noise corresponding to the emitted light of the screen is filtered by the first polaroid and the second polaroid, second optical noise corresponding to the emitted light of the screen is filtered by the second polaroid, and the first optical noise is from screen light of the screen and irradiates to the light of the optical fingerprint identification module; the second optical noise is screen light from the screen, and irradiates light far away from the optical fingerprint identification module and is reflected by the glass cover plate outside the screen;
and collecting the light reflected by the user fingerprint by the screen light through the optical fingerprint identification module, and processing the light to obtain a fingerprint image.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811280531.5A CN109241953B (en) | 2018-10-30 | 2018-10-30 | Electronic device and fingerprint image processing method |
| EP19880635.8A EP3869389A4 (en) | 2018-10-30 | 2019-08-20 | Electronic device, and fingerprint image processing method and related product |
| PCT/CN2019/101607 WO2020088046A1 (en) | 2018-10-30 | 2019-08-20 | Electronic device, and fingerprint image processing method and related product |
| US17/243,420 US11508179B2 (en) | 2018-10-30 | 2021-04-28 | Electronic device, fingerprint image processing method and related products |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811280531.5A CN109241953B (en) | 2018-10-30 | 2018-10-30 | Electronic device and fingerprint image processing method |
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| CN109241953B true CN109241953B (en) | 2024-01-09 |
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| WO2020150926A1 (en) * | 2019-01-23 | 2020-07-30 | 深圳市汇顶科技股份有限公司 | Lcd in-screen fingerprint recognition module, lcd apparatus and terminal device |
| CN109901864A (en) * | 2019-03-06 | 2019-06-18 | 北京意锐新创科技有限公司 | The method and apparatus of barcode scanning terminal coupling firmware updating based on FTPS |
| CN109901865A (en) * | 2019-03-06 | 2019-06-18 | 北京意锐新创科技有限公司 | The method and apparatus of firmware upgrade |
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