CN114167643A

CN114167643A - LCD display screen, electronic equipment, fingerprint identification method, fingerprint identification device and fingerprint identification medium

Info

Publication number: CN114167643A
Application number: CN202010840276.6A
Authority: CN
Inventors: 林信伯
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2020-08-19
Filing date: 2020-08-19
Publication date: 2022-03-11

Abstract

The present disclosure relates to an LCD display screen, an electronic device, a fingerprint identification method, an apparatus and a medium, the display screen comprises a backlight module, wherein the backlight module comprises a first light source and a second light source, the second light source is configured as an identification light source of the fingerprint identification module; the light-emitting waveband of the first light source is a first waveband, and the light-emitting waveband of the second light source is a second waveband. Use this disclosed scheme, can be at the fingerprint identification in-process to the second light source is as discernment light source, thereby reduces the interference of first light source to the fingerprint identification in-process, promotes fingerprint identification's accuracy.

Description

LCD display screen, electronic equipment, fingerprint identification method, fingerprint identification device and fingerprint identification medium

Technical Field

The present disclosure relates to the field of terminals, and in particular, to an LCD display screen, an electronic device, a fingerprint identification method, an apparatus, and a medium.

Background

With the progress of technology, the screen occupation ratio of electronic equipment such as mobile phones is higher and higher, and the full-screen mobile phone gradually becomes the mainstream of the future mobile phone market. The popularization of the full-screen mobile phone improves the use experience of a user, and changes the past use habit of the user, for example, the existing full-screen mobile phone adopts an optical fingerprint unlocking scheme under a screen.

In the full-screen liquid crystal display screen, the light emitted by the backlight source is used as the identification light source for fingerprint identification, the brightness of the fingerprint identification area of the screen needs to be higher than the normal use brightness in the unlocking process, and the backlight of the area except the fingerprint identification area of the screen can influence the brightness of the fingerprint identification area, so that the accuracy of the fingerprint identification is influenced.

Disclosure of Invention

To overcome the problems in the related art, the present disclosure provides an LCD display screen, an electronic device, a fingerprint identification method, apparatus, and medium.

According to a first aspect of the embodiments of the present disclosure, an LCD display screen is provided, which is applied to an electronic device including a fingerprint identification module, the display screen includes a backlight module, the backlight module includes a first light source and a second light source, and the second light source is configured as an identification light source of the fingerprint identification module; the light-emitting waveband of the first light source is a first waveband, and the light-emitting waveband of the second light source is a second waveband.

Optionally, the first wavelength band comprises a visible light wavelength band and the second wavelength band comprises an infrared light wavelength band.

Optionally, the first light source and the second light source are located on the same side of the light guide plate of the backlight module.

Optionally, the first light source is located at a first side of a light guide plate of the backlight module, and the second light source is located at a second side of the light guide plate opposite to the first side.

Optionally, the first light source is located at a first side and a second side of a light guide plate of the backlight module, and the second light source is located at the first side or the second side of the light guide plate.

According to a second aspect of the embodiments of the present disclosure, an electronic device is provided, which includes a fingerprint identification module and any one of the above LCD display screen, the display screen includes a display module and a backlight module, and the fingerprint identification module is disposed inside the display module of the display screen.

According to a third aspect of the embodiments of the present disclosure, there is provided a fingerprint identification method applied in the electronic device, the method including:

receiving operation information of a preset area of a display screen;

controlling the second light source to emit light based on the operation information;

determining fingerprint information corresponding to the operation information and an identification result of the fingerprint information; wherein the fingerprint information is determined based on the received reflected light of the second light source.

Optionally, the determining the fingerprint information corresponding to the operation information and the identification result of the fingerprint information includes:

receiving the fingerprint information collected by the fingerprint identification module and/or the identification result of the fingerprint information.

Optionally, the preset area is located in a partial display area of the display screen, or the preset area is located in the entire display area of the display screen.

According to a fourth aspect of the embodiments of the present disclosure, there is provided a fingerprint identification apparatus, which is applied to the electronic device, the apparatus including:

the receiving module is used for receiving operation information of a preset area of the display screen;

the control module is used for controlling the second light source to emit light based on the operation information;

the determining module is used for determining fingerprint information corresponding to the operation information and an identification result of the fingerprint information; wherein the fingerprint information is determined based on the received reflected light of the second light source.

Optionally, the determining module is specifically configured to: receiving the fingerprint information collected by the fingerprint identification module and/or the identification result of the fingerprint information.

According to a fifth aspect of embodiments of the present disclosure, there is provided an electronic apparatus including:

a processor;

a memory for storing executable instructions of the processor;

wherein the processor is configured to perform the fingerprinting method as defined in any of the above.

According to a sixth aspect of embodiments of the present disclosure, there is provided a non-transitory computer-readable storage medium, wherein instructions, when executed by a processor of an electronic device, enable the electronic device to perform the fingerprint identification method as defined in any one of the above.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: use this disclosed scheme, can be at the fingerprint identification in-process to the second light source is as discernment light source, thereby reduces the interference of first light source to the fingerprint identification in-process, promotes fingerprint identification's accuracy.

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 disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a schematic view of a structure of an LCD panel in the related art.

Fig. 2 is a schematic diagram of an underscreen fingerprint recognition in the related art.

Fig. 3 is a schematic diagram illustrating a structure according to an exemplary embodiment.

Fig. 4 is a schematic diagram illustrating a structure according to an exemplary embodiment.

Fig. 5 is a schematic diagram illustrating a structure according to an exemplary embodiment.

FIG. 6 is a schematic diagram illustrating a distribution of light sources according to an exemplary embodiment.

FIG. 7 is a schematic diagram illustrating a distribution of light sources according to an exemplary embodiment.

FIG. 8 is a flow chart illustrating a method according to an example embodiment.

Fig. 9 is a block diagram illustrating an apparatus according to an example embodiment.

FIG. 10 is a block diagram of an electronic device shown in accordance with an example embodiment.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.

The structure and principle of a Liquid Crystal Display (LCD) are needed before the fingerprint unlocking process under the screen is known.

In the related art, referring to fig. 1, the LCD display screen includes a backlight module 2 'and a display module 1', and the backlight module 2 'is disposed below the display module 1' according to the direction shown in the figure. The backlight module 2 ' includes an LED light source 21 ', a light guide plate 22 ', and the like. The display module 1 'includes two parallel glass substrates 11', and a liquid crystal 12 'is disposed between the two glass substrates 11'. The upper glass substrate is deposited with a filter 13 ', a common electrode (VCOM electrode) 14 ' and the like, and the lower glass substrate is mounted with a Thin Film Transistor (TFT)15 ', a pixel electrode (source electrode) 16 ', a storage capacitor 17 ' and the like. Polarizing plates 18 ' are provided on the upper surface of the upper glass substrate 11 ' and the lower surface of the lower glass substrate 11 ', respectively.

When the LED lamp 21 'emits light, the light can be diffused by the light guide plate 22', the diffusion plate (not shown), the reflection plate (not shown), and the like, and polarized by the polarizer 18 ', and uniformly penetrates through the lower glass substrate 11' and the liquid crystal 12 ', and the transmitted light passes through the color filter 13' to generate color, and finally enters the polarizer 18 'of the upper glass substrate 11'. After the light passes through the process, the light emitted by each pixel point on the uppermost layer has different conditions, and finally a display image is formed. When a voltage is applied between the pixel electrode 16 'and the common electrode 14', the arrangement state of the molecules of the liquid crystal 12 'is changed, and the transmittance of the liquid crystal 12' with respect to light is also changed accordingly.

In combination with the structure of the LCD panel and referring to fig. 2, the backlight module 2 ' (BLU, Back Light Unit) of the related art is a full-screen type LCD panel including a Light guide plate 22 ' and LED lamps 21 '. The fingerprint recognition uses the light emitted from the LED lamp 21' as a recognition light source. When the user Fingerprint is pressed on the display screen, the light emitted by the LED lamp 21 'penetrates through the display module 1' (illustrated panel) and hits the user Fingerprint (Fingerprint), and then is reflected back to the Fingerprint sensor, and the Fingerprint sensor collects and identifies the user Fingerprint.

During the fingerprint identification process, the brightness of the fingerprint identification area of the screen needs to be higher than the normal use brightness of other areas of the display screen. Generally speaking, the LED lamp 21 'of the backlight module 2' can only realize the overall adjustment to control the overall brightness of the display screen.

From the above, it can be seen that the voltage difference between the two electrodes of the display module 1 'has an influence on the transmittance of the molecules of the liquid crystal 12'. The light transmittance of the liquid crystal 12' molecules increases with increasing voltage difference before the maximum light transmittance is reached. Therefore, when the brightness of the LED lamp 21' of the display screen is constant, the brightness of the fingerprint identification area is usually adjusted by changing the voltage difference between the two electrodes loaded on the fingerprint identification area. Based on the principle, the proper pressure difference between the two electrodes corresponding to the fingerprint identification area is controlled, so that the sufficient brightness of the fingerprint identification area of the screen can be ensured, and the requirement of fingerprint unlocking is met.

In the process, except for other areas outside the screen fingerprint identification area, the light transmittance of the liquid crystal molecules is theoretically far lower than that of the fingerprint identification area, but the visible light emitted by the LED can still transmit. The backlight of other areas may generate light leakage phenomenon, and the light leakage enters the fingerprint identification area and is mixed in the light of the original fingerprint identification area to influence the brightness of the fingerprint identification area, so that noise is increased in the fingerprint identification process, and the success rate of fingerprint identification is reduced.

In order to solve the technical problem, the present disclosure provides an LCD display screen applied to an electronic device including a fingerprint identification module, where the display screen includes a backlight module, the backlight module includes a first light source and a second light source, and the second light source is configured as an identification light source of the fingerprint identification module; the light-emitting waveband of the first light source is a first waveband, and the light-emitting waveband of the second light source is a second waveband. Use this disclosed scheme, can be at the fingerprint identification in-process to the second light source is as discernment light source, thereby reduces the interference of first light source to the fingerprint identification in-process, promotes fingerprint identification's accuracy.

In an exemplary embodiment, the LCD display screen in this embodiment is applied to an electronic device including a fingerprint identification module. The electronic device may be a touch-control electronic product in the form of a liquid crystal display screen, such as a notebook computer, a mobile phone, a tablet computer, a touch inquiry machine, a fingerprint card punching machine, and the like. The fingerprint recognition module may be, for example, a fingerprint sensor. The LCD display screen comprises a display module and a backlight module, and the display module realizes image display based on light emitted by the backlight module.

In this embodiment, as shown in fig. 3 or fig. 4, the backlight module 2 includes a first light source 21, a second light source 22 and a light guide plate 23, and the second light source 22 is configured as an identification light source of the fingerprint identification module. The light emitting waveband of the first light source 21 is a first waveband, and the light emitting waveband of the second light source is a second waveband. In a scene requiring fingerprint identification, the electronic device may control the second light source 22 to emit light, and the first light source 21 may or may not emit light at this time.

In an example, if fingerprint recognition is required in a scene where the first light source does not emit light, for example, in a scene where the electronic device needs to unlock a fingerprint in a screen state, when a finger presses on a response area of the fingerprint recognition on the screen, in order to ensure that the fingerprint recognition area (area covered by the fingerprint) has higher brightness, the second light source 22 is controlled to be turned on, and the light transmittance of liquid crystal molecules corresponding to the fingerprint recognition area can be changed to improve the brightness of the fingerprint recognition area. The fingerprint is hit to the light that second light source 22 sent to reflect to the fingerprint identification module, the fingerprint identification module carries out fingerprint collection and discernment based on the reverberation, and at the unblock in-process, first light source 21 can not give out light, therefore the fingerprint identification module can avoid the influence of first light source 21 light leak.

In another example, if fingerprint identification is required in a scene where the first light source 21 emits light, for example, the electronic device relates to a scene of fingerprint payment or verification in a bright screen state (the first light source 21 emits light), when a finger is pressed on a response area of the screen for fingerprint identification, to ensure that the fingerprint identification area has higher brightness, the second light source 22 is controlled to be turned on, and the light transmittance of liquid crystal molecules corresponding to the fingerprint identification area can be changed to improve the brightness of the fingerprint identification area. The fingerprint identification module only collects and identifies fingerprints based on the reflected light of the light-emitting waveband of the second light source 22. At this moment, even if the light of first light source 21 passes through other regions (except fingerprint identification region), there is the light leak phenomenon (the light leak gets into the fingerprint identification region), the fingerprint identification module still carries out fingerprint collection or discernment with the signal of the luminous wave band that second light source 22 corresponds to effectively reduce the influence of first light source 21 light leak to the fingerprint identification accuracy.

It is understood that the first light source 21 may be a common light source configured as a backlight module in the art, such as an LED lamp, emitting visible light, i.e., the first wavelength band includes a visible light wavelength band (380nm to 780 nm). The second light source 22 may be an infrared lamp or an ultraviolet lamp, i.e. the second wavelength band may or may not be different from the visible wavelength band, and in this embodiment, the second wavelength band includes an infrared wavelength band (640nm to 780 nm). The first waveband is not identical with the second waveband, so that the visible light leakage exists in other normal brightness areas of the screen even in the fingerprint identification process, the fingerprint identification process cannot be influenced, and the influence of the light of the first waveband on the fingerprint identification process is effectively reduced.

In an exemplary embodiment, the first light source and the second light source may be disposed in various manners.

In one example, as shown in fig. 3, the first light source 21 is located at a first side (e.g., a first side edge) of the light guide plate 23, and the second light source 22 is located at a second side (e.g., a second side edge) of the light guide plate 23 opposite to the first side. In the length direction of the electronic device, the distribution area of the first light source 21 may be adapted to the size of the display screen, where the adaptation may be, for example: the distribution length of the first light source is the same as the length of the display screen.

In the length direction of the electronic device, the distribution length of the second light sources 22 may be the same as the distribution length of the first light sources 21, as shown in fig. 6. The distribution length of the second light source 22 may also be adapted to the size of the response area of the fingerprint recognition, as shown in fig. 7, where the adaptation may be, for example, that the distribution length of the second light source 22 is the same as the length of the response area of the fingerprint recognition. When the distribution length of the second light source 22 is the same as the distribution length of the first light source 21, since the wavelength range of the infrared light is narrower than the visible light range, the light emitted from the second light source 22 can be guided by the light path design, for example, by the prism light path design, so that the light emitted from the second light source can be totally incident on the fingerprint identification area (the visible light spectrum range is wide, which is difficult to achieve).

Wherein, the response area of fingerprint identification refers to: the effective area of fingerprint collection or identification can be realized to user's press or touch-control on the display screen. In the present example, when fingerprint recognition is concerned, the light emission of the second light source 22 can penetrate the response area of fingerprint recognition.

In another example, as shown in fig. 4, the backlight module 2 includes a first light source 21, a second light source 22 and a light guide plate 23, and the first light source 21 and the second light source 22 are located on the same side (as a side) of the light guide plate 23. Wherein, in the extending direction of the side of the light guide plate 23, the distribution length of the first light source 21 is the same as the length of the display screen; the distribution length of the second light source 22 may be the same as the distribution length of the first light source 21, or may be the same as the length of the response area of fingerprint identification. In the present example, when fingerprint recognition is concerned, the light emission of the second light source 22 penetrates the response area of fingerprint recognition.

In another example, as shown in fig. 5, two first light sources 21 are distributed at both sides of the light guide plate 23, i.e., the first light sources 21 are located at both the first side and the second side of the light guide plate 23, and the second light sources 22 may be located only at the first side or the second side of the light guide plate 23. For the distribution lengths of the first light source 21 and the second light source 22, reference is made to the above example, which is not repeated herein. When fingerprint recognition is concerned, the light emission of the second light source 22 penetrates the response area of fingerprint recognition.

In an exemplary embodiment, the present embodiment provides an electronic device, which includes a fingerprint identification module and the LCD display screen, wherein the LCD display screen includes a display module and a backlight module, and the fingerprint identification module is disposed inside the display module of the LCD display screen.

Wherein, at the display area or the touch-control area of display screen, be provided with fingerprint identification's response area, wherein, fingerprint identification's response area means: the effective area of fingerprint collection or identification can be realized to user's press or touch-control on the display screen. When the finger pressed or touched in this fingerprint identification's response area promptly, the fingerprint identification module can gather and discern the fingerprint. The fingerprint recognition module may for example comprise a recognizer (for example a CCD image sensor chip) which may be integrated at the TFT of the display module.

In an exemplary embodiment, a fingerprint identification method is provided, which is applied to an electronic device and is suitable for a scenario requiring person identity confirmation, such as an access control system, an attendance system, a notebook computer, bank internal processing, bank payment, and the like. Taking an electronic device as an example of a mobile phone, the method of the embodiment is applicable to a scenario including: and fingerprint unlocking on a standby interface, or an operation process requiring a fingerprint identification function, such as inputting a fingerprint password in a payment process.

As shown in fig. 8, the method of the present embodiment includes the following steps:

and S110, receiving operation information of a preset area of the display screen.

And S120, controlling the second light source to emit light based on the operation information.

S130, determining fingerprint information corresponding to the operation information and an identification result of the fingerprint information; wherein the fingerprint information is determined based on the received reflected light of the second light source.

In step S110, the preset area may be, for example, a response area for fingerprint recognition. The operation information may be, for example, pressing or touching information of the user, and the operation information includes fingerprint features of the user. The operation information may be received by a Central Processing Unit (CPU), and specifically may be received by an application processor AP in the CPU.

In one example, the preset area is located in a partial display area of the display screen, and the fingerprint identification module set at this time may be in the form of a single fingerprint identifier. For example, there is only one response area for fingerprint identification, and fingerprint collection of a single finger needs to be performed in the area for many times.

In another example, the preset area is located in all display areas of the display screen, for example, in a scheme that the light collimation design is simultaneously performed on the display module in which the fingerprint sensing module (identifier) is integrated, the collection processing of one to a plurality of fingerprints can be simultaneously performed, the pressing or touch operation on the display screen does not need to be concentrated on one area, and the user experience is better.

In step S120, when the Central Processing Unit (CPU) of the electronic device receives the operation information, the second light source may be controlled to emit light. It can be understood that in a scenario where the operation information of the response area of the fingerprint identification is received, the first light source may be in a light-emitting state (such as a scenario of inputting a fingerprint password by a payment process) or in a non-light-emitting state (such as a scenario of unlocking a fingerprint in a screen-saving interface).

In step S130, the fingerprint information corresponding to the operation information is collected and identified by the CPU, or by the fingerprint identification module itself, and the fingerprint information collected by the fingerprint identification module and the identification result of the fingerprint information are sent to the CPU.

For example, when the second light source (infrared light source) emits light, the infrared light penetrates through the display module and strikes the fingerprint of the user, and the reflected infrared light irradiates the identifier of the fingerprint identification module. The infrared light signal of the ridge reflection of fingerprint is received to the recognizer of fingerprint identification module to gather the fingerprint information that the operating information corresponds, the fingerprint information who will gather compares with the standard fingerprint information of prestoring, and the discernment is whether unanimous, if unanimous, then can pass through the verification. Can understand, carry out the in-process of fingerprint collection and discernment at the fingerprint identification module, the light that the second light source sent can carry out light guide through the light path design, for example carry out light guide through the mode of prism light path design, the folding light path design of reflective or light collimation for the light that the second light source sent can incide at the fingerprint identification region, and then the recognizer can receive the reverberation through the fingerprint.

In this step, CPU can receive the fingerprint information and/or the identification result of fingerprint information that above-mentioned fingerprint identification module was gathered, and the mode of receipt can be for example fingerprint identification module with fingerprint information and/or identification result direct transmission to CPU, or CPU sends the solicited message, fingerprint identification module according to solicited message with fingerprint information and/or identification result transmission to CPU.

In an exemplary embodiment, a fingerprint identification apparatus is provided, which is applied in an electronic device, as shown in fig. 9, the apparatus of the embodiment includes: a receiving module 110, a control module 120, and a determining module 130, wherein the apparatus of the embodiment is used to implement the method shown in fig. 8. The receiving module 110 is configured to receive operation information of a preset area of a display screen. The control module 120 is configured to control the second light source to emit light based on the operation information. The determining module 130 is configured to determine fingerprint information corresponding to the operation information and an identification result of the fingerprint information; wherein the fingerprint information is determined based on the received reflected light of the second light source. Wherein, the determining module 130 is specifically configured to receive the fingerprint information and/or the recognition result of the fingerprint information collected by the fingerprint recognition module. The preset area is located in a part of the display area of the display screen, or the preset area is located in the whole display area of the display screen.

Fig. 10 is a block diagram of an electronic device. The present disclosure also provides for an electronic device, for example, the device 500 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.

Device 500 may include one or more of the following components: a processing component 502, a memory 504, a power component 506, a multimedia component 508, an audio component 510, an input/output (I/O) interface 512, a sensor component 514, and a communication component 516.

The processing component 502 generally controls overall operation of the device 500, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 502 may include one or more processors 520 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 502 can include one or more modules that facilitate interaction between the processing component 502 and other components. For example, the processing component 502 can include a multimedia module to facilitate interaction between the multimedia component 508 and the processing component 502.

The memory 504 is configured to store various types of data to support operation at the device 500. Examples of such data include instructions for any application or method operating on device 500, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 504 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.

Power component 506 provides power to the various components of device 500. The power components 506 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the apparatus 500.

The multimedia component 508 includes a screen that provides an output interface between the device 500 and the user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 508 includes a front facing camera and/or a rear facing camera. The front-facing camera and/or the rear-facing camera may receive external multimedia data when the device 500 is in an operating mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

The audio component 510 is configured to output and/or input audio signals. For example, the audio component 510 includes a Microphone (MIC) configured to receive external audio signals when the device 500 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 504 or transmitted via the communication component 516. In some embodiments, audio component 510 further includes a speaker for outputting audio signals.

The I/O interface 512 provides an interface between the processing component 502 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.

The sensor assembly 514 includes one or more sensors for providing various aspects of status assessment for the device 500. For example, the sensor assembly 514 may detect an open/closed state of the device 500, the relative positioning of the components, such as a display and keypad of the device 500, the sensor assembly 514 may also detect a change in the position of the device 500 or a component of the device 500, the presence or absence of user contact with the device 500, orientation or acceleration/deceleration of the device 500, and a change in the temperature of the apparatus 500. The sensor assembly 514 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 514 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 514 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 516 is configured to facilitate communications between the device 500 and other devices in a wired or wireless manner. The device 500 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 516 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 516 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the device 500 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.

A non-transitory computer readable storage medium, such as the memory 504 including instructions executable by the processor 520 of the device 500 to perform the method, is provided in another exemplary embodiment of the present disclosure. For example, the computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like. The instructions in the storage medium, when executed by a processor of the electronic device, enable the electronic device to perform the above-described method.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims

1. An LCD display screen is applied to electronic equipment comprising a fingerprint identification module, and the display screen comprises a backlight module, and is characterized in that the backlight module comprises a first light source and a second light source, and the second light source is configured as an identification light source of the fingerprint identification module; the light-emitting waveband of the first light source is a first waveband, and the light-emitting waveband of the second light source is a second waveband.

2. The LCD display screen of claim 1, wherein the first wavelength band comprises a visible light band and the second wavelength band comprises an infrared light band.

3. The LCD display screen of claim 1, wherein the first light source and the second light source are located on the same side of the light guide plate of the backlight module.

4. The LCD display screen of claim 1, wherein the first light source is located on a first side of a light guide plate of the backlight module, and the second light source is located on a second side of the light guide plate opposite to the first side.

5. The LCD panel of claim 1, wherein the first light source is located on a first side and a second side of a light guide plate of the backlight module, and the second light source is located on the first side or the second side of the light guide plate.

6. An electronic device, comprising a fingerprint identification module and the LCD display screen of any one of claims 1 to 5, wherein the display screen comprises a display module and a backlight module, and the fingerprint identification module is disposed inside the display module of the display screen.

7. A fingerprint identification method applied to the electronic device of claim 6, the method comprising:

receiving operation information of a preset area of a display screen;

8. The fingerprint identification method according to claim 7, wherein the determining the fingerprint information corresponding to the operation information and the identification result of the fingerprint information comprises:

9. The fingerprint identification method according to claim 7, wherein the preset area is located in a part of the display area of the display screen, or the preset area is located in the whole display area of the display screen.

10. A fingerprint recognition apparatus applied in the electronic device of claim 6, wherein the apparatus comprises:

11. The fingerprint recognition device of claim 10, wherein the determination module is specifically configured to: receiving the fingerprint information collected by the fingerprint identification module and/or the identification result of the fingerprint information.

12. The fingerprint recognition device according to claim 10, wherein the preset area is located in a part of the display area of the display screen, or the preset area is located in the whole display area of the display screen.

13. An electronic device, comprising:

a processor;

a memory for storing executable instructions of the processor;

wherein the processor is configured to perform the fingerprinting method of any one of claims 7 to 9.

14. A non-transitory computer readable storage medium, wherein instructions in the storage medium, when executed by a processor of an electronic device, enable the electronic device to perform the fingerprinting method according to any one of claims 7 to 9.