CN209072544U

CN209072544U - Fingerprint identification device and terminal device with fingerprint identification function

Info

Publication number: CN209072544U
Application number: CN201821673193.7U
Authority: CN
Inventors: 谢浩
Original assignee: Shenzhen Huiding Technology Co Ltd
Current assignee: Shenzhen Goodix Technology Co Ltd
Priority date: 2018-10-15
Filing date: 2018-10-15
Publication date: 2019-07-05
Anticipated expiration: 2028-10-15

Abstract

The invention relates to fingerprint identification device and terminal devices.The terminal device includes glass cover-plate (1000), for providing touch interface；Liquid crystal display panel (2000) is located at below the glass cover-plate (1000)；Fingerprint recognition light source (5000) is located at the lower section of the glass cover-plate (1000), for shining and irradiating the finger to generate return light；Backlight module (3000), is located at below the liquid crystal display panel (2000), and the fingerprint detection transmission region (3101) which includes is used for transmission the return light；Fingerprint recognition mould group (4000) is located at below the fingerprint detection transmission region (3101), for obtaining fingerprint image by the return light of the fingerprint detection transmission region (3101) based on the received.The fingerprint identification device and terminal device of the embodiment of the present application, can be realized the fingerprint detection of LCD screen.

Description

Fingerprint identification device and terminal device with fingerprint identification function

Technical field

This application involves fingerprint recognition field more particularly to fingerprint identification device and the terminal with fingerprint identification function is set It is standby.

Background technique

Shield lower optical finger print at present at Organic Light Emitting Diode (Organic Light-Emitting Diode, OLED) Volume production is realized under screen, that utilize is the light transmission features that OLED screen curtain itself has and the illumination shooter that screen itself issues Fingerprint is detected after finger；But liquid crystal display (Liquid Crystal Display, LCD) shields, due to steel plate in backlight module And reflectance coating is opaque, along with the diffusion barrier in backlight module has atomizing effect to light, bright enhancement film has direction to light Binding feature causes the terminal device of LCD screen to cannot achieve fingerprint detection.

Utility model content

This application provides a kind of fingerprint identification device and with the terminal device of fingerprint identification function, LCD can be realized The fingerprint detection of screen.

In a first aspect, providing a kind of terminal device with fingerprint identification function, which includes: glass cover-plate (1000), touch interface is provided when for carrying out fingerprint recognition for finger；Liquid crystal display panel (2000) is located at the glass cover-plate (1000) lower section, for showing image；Fingerprint recognition light source (5000) is located at the lower section of the glass cover-plate (1000), is used for It shines and irradiates the finger to generate return light；Backlight module (3000) is located at below the liquid crystal display panel (2000), uses In for the liquid crystal display panel (2000) show image light source, including the first light guide plate (3200) and non-light conducting plate structure are provided (3100), the non-light conducting plate structure (3100) includes fingerprint detection transmission region (3101), the fingerprint detection transmission region (3101) it is used for transmission the return light；Fingerprint recognition mould group (4000) is located under the fingerprint detection transmission region (3101) Side refers to for receiving the return light by the fingerprint detection transmission region (3101), and according to return light acquisition Print image, the fingerprint image carry out the fingerprint recognition for the terminal device.

With reference to first aspect, in a kind of implementation of first aspect, the fingerprint detection transmission region (3101) is Through-hole on the non-light conducting plate structure (3100).

With reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, the fingerprint inspection Surveying transmission region (3101) is the region that optical ink is filled on the non-light conducting plate structure (3100).

Optionally, the optical ink has wavelength selectivity, has to the light that the fingerprint recognition light source (5000) issues There is good transmitance.

With reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, the fingerprint inspection It is related to the FOV of the fingerprint recognition mould group (4000) for surveying the size of transmission region (3101).

Specifically, the size of the fingerprint detection transmission region of top layer's structure and institute in the non-light conducting plate structure (3100) The FOV for stating fingerprint recognition mould group (4000) is related.

With reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, the non-leaded light Hardened structure includes following at least one layer: composite membrane (3110), bright enhancement film (3120), diffusion barrier (3130), the first reflectance coating (3140) and steel plate (3150).

Wherein, the size of the fingerprint detection transmission region of composite membrane (3110) and the fingerprint recognition mould group (4000) FOV is related.Optionally, the fingerprint of bright enhancement film (3120), diffusion barrier (3130), the first reflectance coating (3140) and steel plate (3150) The size of detection transmission region is all larger than the size of the fingerprint detection transmission region of composite membrane (3110).

With reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, the composite membrane (3110), the bright enhancement film (3120) and the diffusion barrier (3130) are located above first light guide plate (3200), described First reflectance coating (3140) and the steel plate (3150) are located at below first light guide plate (3200).

With reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, the terminal is set It is standby further include: light compensating apparatus (6000) is located at the lower section of the fingerprint detection transmission region (3101) and is located at the fingerprint and knows Above other mould group (4000), for carrying out backlight compensation to the fingerprint detection transmission region (3101).

With reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, the light filling dress Setting (6000) includes backlight (6100) and the second light guide plate (6200), and it is guide-lighting that the backlight (6100) is located at described second Around plate (6200), second light guide plate (6200) is used to conduct the light of the backlight (6100) sending.

With reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, the light filling dress Set (6000) further include: the second reflectance coating (6300) is located under the backlight (6100) and second light guide plate (6200) Side, for reflecting the light and second leaded light that the backlight (6100) issues to the fingerprint detection transmission region (3101) The light of plate (6200) conduction；Second reflectance coating (6300) has through-hole (6310), and the through-hole (6310) is used for described Return light described in fingerprint recognition mould group (4000) transparent transmission.

With reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, the light filling dress It sets and is provided with optical filter (7000) between (6000) and the fingerprint recognition mould group (4000), the optical filter (7000) is for filtering Except light being transmitted to the fingerprint recognition mould group (4000), in addition to the return light.

With reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, the fingerprint is known Other light source (5000) is not blocked mutually with the liquid crystal display panel (2000).

With reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, the fingerprint is known Other light source (5000) is fixed below the glass cover-plate (1000) by optical cement (5001).

With reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, the fingerprint is known Angle between the luminous flat of other light source (5000) and the surface of the glass cover-plate (1000) is not zero.

With reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, the fingerprint is known The light that other light source (5000) issues is infrared light.

With reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, the liquid crystal surface Plate (2000) includes: fingerprint detection region (2100), and the fingerprint detection region (2100) is used for: the finger is touched to carry out The fingerprint recognition, the light that fingerprint recognition light source (5000) issues irradiate the return light that the finger generates and penetrate the finger Line induction region (121) is transmitted to the fingerprint recognition mould group (4000).

With reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, the fingerprint inspection It is Chong Die with the virtual key on the liquid crystal display panel (2000) to survey region (2100).

With reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, the fingerprint is known Other mould group (4000) further includes processing unit (4100), and the processing unit (4100) is used for: controlling the fingerprint recognition light source (5000) it shines according to modulating frequency, and demodulation process is carried out to the return light；According to the return light after demodulation, described in acquisition The fingerprint image of finger.

With reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, the fingerprint inspection Surveying region (2100) includes multiple subregions, and the fingerprint recognition mould group (4000) further includes processing unit (4100), the place Reason unit (4100) is used for: according to the touch operation in the fingerprint detection region, determining whether the multiple subregion has Touch data；Whether there is touch data according to the multiple subregion, determines whether the touch operation is effective；If the touching It touches operation effectively, fingerprint recognition is executed to the touch operation by the fingerprint recognition mould group.

With reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, the processing is single First (4100) are also used to: being preset if the number of the subregion in the multiple subregion with touch data is more than or equal to Value, determines that the touch operation is effective.

With reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, the terminal is set Standby further includes light sensor (1900), and the processing unit (4100) is also used to: being touched if having in the multiple subregion The number of the subregion of data is more than or equal to preset value, and the light sensor is not blocked, determines the touch behaviour Make effective.

With reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, the processing is single First (4100) are also used to: if each subregion all has touch data in the multiple subregion, determining that the touch operation has Effect.

With reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, the terminal is set Standby further includes light sensor (1900), and the processing unit (4100) is also used to: if each sub-district in the multiple subregion Domain all has touch data, and the light sensor is not blocked, determines that the touch operation is effective.

With reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, the processing is single First (4100) are also used to: according to the position of each subregion and each time for obtaining touch data together, being determined The form of the touch operation, different forms correspond to different application programs；If the touch operation is effective, by described After fingerprint recognition mould group executes fingerprint recognition success to the touch operation, answer corresponding with the form of the touch operation is run Use program.

With reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, the multiple son Region is distributed on the fingerprint detection region according to preset rules.

With reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, the default rule Then include: in the multiple subregion any two subregion be not overlapped.

With reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, the default rule It then include: the multiple subregion using the horizontal center line in the fingerprint detection region and/or vertical center line as axis, symmetrically Distribution.

With reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, the default rule It then include: the area equation of each subregion in the multiple subregion.

With reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, the fingerprint is known Other mould group (4000) further includes processing unit (4100) and optical detection unit, and the processing unit (4100) is used for: passing through institute The light intensity for the return light that optical detection unit is determined by the fingerprint detection region (2100) is stated, the return light is the finger Line identification light source (5000) is radiated at the light that the fingerprint detection region (2100) executes the object back reflection of touch operation；Root According to the light intensity of the return light, determine whether the touch operation is effective；If the touch operation is effective, known by the fingerprint Other mould group (4000) executes fingerprint recognition to the touch operation.

With reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, the processing is single First (4100) are also used to: if the light intensity of the return light is more than or equal to default light intensity, determining that the touch operation is effective.

With reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, the terminal is set Standby further includes light sensor (1900), and the processing unit (4100) is also used to: if the light intensity of the return light be greater than or Equal to default light intensity, and the light sensor is not blocked, determines that the touch operation is effective.

With reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, the processing is single First (4100) are also used to: according to the light intensity of the return light, determining whether the object is living body；If the object is living body, Determine that the touch operation is effective.

With reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, the terminal is set Standby further includes light sensor (1900), and the processing unit (4100) is also used to: according to the light intensity of the return light, determining institute State whether object is living body；If the object is living body, and the light sensor is not blocked, determines that the touch operation has Effect.

With reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, the processing is single First (4100) are also used to: if the light intensity of the return light is more than or equal to default light intensity, according to the light intensity of the return light, really Whether the fixed object is living body；If the object is living body, determine that the touch operation is effective.

With reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, the terminal is set Standby further includes light sensor (1900), and the processing unit (4100) is also used to: if the light intensity of the return light be greater than or Equal to default light intensity, and the light sensor is not blocked, according to the light intensity of the return light, determine the object whether be Living body；If the object is living body, determine that the touch operation is effective.

With reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, the optics inspection Survey unit is photodiode.

With reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, the processing is single First (4100) are also used to: according to the light intensity of the return light, adjusting the measurement range of the photodiode.

With reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, the processing is single First (4100) are also used to: being controlled the fingerprint recognition light source (5000) and are shone according to modulating frequency, and carry out to the return light Demodulation process；The light intensity of the return light after demodulation is determined by the optical detection unit.

Therefore, the terminal device with fingerprint identification function in the embodiment of the present application, it is special by being carried out to backlight module Different processing, such as through-hole is set on backlight module or fills the mode of optical ink, so that the light for fingerprint detection can To be transmitted to fingerprint recognition mould group through backlight module, solve the problems, such as to realize optical finger print detection under LCD screen, and not shadow Ring the display effect of LCD script.Additionally, it is contemplated that backlight module carries out after specially treated to realize fingerprint detection function to aobvious The influence for showing effect, by the way that light filling component is arranged, light loss after compensation backlight module membrane material is specially treated, or can be with Virtual key is arranged in fingerprint detection region, be can not only be used for the instruction of fingerprint pressing area, can also be reduced fingerprint detection region The light filling requirement of display, while will refer to below in user to more demanding occasion, such as film amusement, browsing photo is shown Line detection zone be set as black can not display area, can further reduce light filling requirement, so as to reduce light filling at This.Meanwhile by the way that the light source that finger irradiates is modulated and is demodulated, solves strong light in environment and the interference of fingerprint detection is asked Topic effectively avoids interference of the visible light of backlight sending in LCD to fingerprint detection.

Second aspect provides a kind of method for fingerprint recognition, and the method is by first aspect or first aspect Terminal device in any one possible implementation executes, and the touch screen includes fingerprint detection region, the fingerprint inspection Surveying region includes multiple subregions, which comprises according to the touch operation in the fingerprint detection region, is determined described more Whether sub-regions have touch data；Whether there is touch data according to the multiple subregion, determines the touch operation Whether effectively；If the touch operation is effective, fingerprint recognition is executed to the touch operation by the fingerprint recognition mould group.

It is described whether to be had according to the multiple subregion in a kind of implementation of second aspect in conjunction with second aspect There is touch data, determine whether the touch operation is effective, comprising: if with the sub-district of touch data in the multiple subregion The number in domain is more than or equal to preset value, determines that the touch operation is effective.

In conjunction with second aspect and its above-mentioned implementation, in another implementation of second aspect, the terminal is set Standby further includes light sensor, described whether to have touch data according to the multiple subregion, determines that the touch operation is It is no effective, comprising: if the number of the subregion in the multiple subregion with touch data is more than or equal to preset value, and The light sensor is not blocked, determines that the touch operation is effective.

It is described according to institute in another implementation of second aspect in conjunction with second aspect and its above-mentioned implementation It states whether multiple subregions have touch data, determines whether the touch operation is effective, comprising: if in the multiple subregion Each subregion all has touch data, determines that the touch operation is effective.

Terminal device is stated in another implementation of second aspect in conjunction with second aspect and its above-mentioned implementation It further include light sensor, it is described that whether touch data is had according to the multiple subregion, whether determine the touch operation Effectively, comprising: if each subregion all has touch data in the multiple subregion, and the light sensor is not hidden Gear, determines that the touch operation is effective.

In conjunction with second aspect and its above-mentioned implementation, in another implementation of second aspect, the method is also Include: the position according to each subregion and each time for obtaining touch data together, determines the touch behaviour The form of work, different forms correspond to different application programs；If the touch operation is effective, passing through the fingerprint recognition mould After group executes fingerprint recognition success to the touch operation, application program corresponding with the form of the touch operation is run.

In conjunction with second aspect and its above-mentioned implementation, in another implementation of second aspect, the multiple son Region is distributed on the fingerprint detection region according to preset rules.

In conjunction with second aspect and its above-mentioned implementation, in another implementation of second aspect, the default rule Then include: in the multiple subregion any two subregion be not overlapped.

In conjunction with second aspect and its above-mentioned implementation, in another implementation of second aspect, the default rule It then include: the multiple subregion using the horizontal center line in the fingerprint detection region and/or vertical center line as axis, symmetrically Distribution.

In conjunction with second aspect and its above-mentioned implementation, in another implementation of second aspect, the default rule It then include: the area equation of each subregion in the multiple subregion.

Therefore, the method for fingerprint recognition in the embodiment of the present application is arranged in the fingerprint detection region of terminal device Multiple subregions are non-with effective touch data according to multiple subregions, determine whether touch operation is effective, and touching Fingerprint recognition is executed when operating effective, so that touch screen triggers the process of unlocked by fingerprint under screen lock state or black state In, False Rate is lower, and identification is rapider, has stronger anti-interference ability to environment light, improves the speed and efficiency of fingerprint recognition.

The third aspect improves a kind of method for fingerprint recognition, and the method is by first aspect or first aspect Terminal device in any one possible implementation executes, and the touch screen includes fingerprint detection region, and the fingerprint is known Other mould group includes optical detection unit, which comprises is determined by the optical detection unit and passes through the fingerprint detection The light intensity of the return light in region, the return light are radiated at the fingerprint detection region for the fingerprint recognition light source and execute touch The light of the object back reflection of operation；According to the light intensity of the return light, determine whether the touch operation is effective；If the touch Operation effectively, by the fingerprint recognition mould group executes fingerprint recognition to the touch operation.

In conjunction with the third aspect, in a kind of implementation of the third aspect, the light intensity according to the return light is determined Whether the touch operation is effective, comprising: if the light intensity of the return light is more than or equal to default light intensity, determines the touch Operation is effective.

In conjunction with the third aspect and its above-mentioned implementation, in another implementation of the third aspect, the terminal is set Standby further includes light sensor, and the light intensity according to the return light determines whether the touch operation is effective, comprising: if The light intensity of the return light is more than or equal to default light intensity, and the light sensor is not blocked, determines the touch behaviour Make effective.

It is described according to institute in another implementation of the third aspect in conjunction with the third aspect and its above-mentioned implementation The light intensity for stating return light determines whether the touch operation is effective, comprising: according to the light intensity of the return light, determines the object Whether body is living body；If the object is living body, determine that the touch operation is effective.

In conjunction with the third aspect and its above-mentioned implementation, in another implementation of the third aspect, the terminal is set Standby further includes light sensor, and the light intensity according to the return light determines whether the touch operation is effective, comprising: root According to the light intensity of the return light, determine whether the object is living body；If the object is living body, and the light sensor is not It is blocked, determines that the touch operation is effective.

It is described according to institute in another implementation of the third aspect in conjunction with the third aspect and its above-mentioned implementation The light intensity for stating return light determines whether the touch operation is effective, comprising: if the light intensity of the return light is more than or equal in advance If light intensity, according to the light intensity of the return light, determine whether the object is living body；If the object be living body, determine described in Touch operation is effective.

In conjunction with the third aspect and its above-mentioned implementation, in another implementation of the third aspect, the terminal is set Standby further includes light sensor, and the light intensity according to the return light determines whether the touch operation is effective, comprising: if The light intensity of the return light is more than or equal to default light intensity, and the light sensor is not blocked, according to the return light Light intensity, determine whether the object is living body；If the object is living body, determine that the touch operation is effective.

In conjunction with the third aspect and its above-mentioned implementation, in another implementation of the third aspect, the optics inspection Survey unit is photodiode.

In conjunction with the third aspect and its above-mentioned implementation, in another implementation of the third aspect, the method is also It include: that the measurement range of the photodiode is adjusted according to the light intensity of the return light.

In conjunction with the third aspect and its above-mentioned implementation, in another implementation of the third aspect, the method is also It include: that the control fingerprint recognition light source shines according to modulating frequency, and carries out demodulation process to the return light；It is described to pass through The optical detection unit determines the light intensity of the return light by the fingerprint detection region, comprising: passes through the optical detection Unit determines the light intensity of the return light after demodulation.

Therefore, the method for fingerprint recognition of the embodiment of the present application will carry out the Photo of In vivo detection Diode and fingerprint image inductor are integrated in optical finger print identification mould group, allow optical finger print identification mould group according to The light intensity detected determines whether that finger presses, i.e., realization screen lock state judges that finger presses, and in addition can also lead to The Photo Diode is crossed to detect whether as living body finger print, realization living body finger print identification function, to pass through fingerprint, blood flow And heart rate signal verifies the true identity of user, allows false fingerprint to have no place to hide, escorts for mobile payment security, greatly Improve the safety of fingerprint detection.

Fourth aspect provides a kind of applied to the liquid crystal display with liquid crystal display panel and backlight module, the fingerprint Identification device includes light source and fingerprint recognition mould group；Wherein, the light source is returned for providing optical signal irradiation finger with generating Light, the return light are used for across the fingerprint detection transmission region of the liquid crystal display panel and the backlight module and are transmitted to described Fingerprint recognition mould group；The fingerprint recognition mould group is passed through for being arranged below the fingerprint detection transmission region for receiving The return light of the fingerprint detection transmission region, and fingerprint image is obtained according to the return light, the fingerprint image is used The fingerprint recognition is carried out in the fingerprint identification device.

In conjunction with fourth aspect, in a kind of implementation of fourth aspect, the fingerprint recognition mould group further includes that processing is single Member, the processing unit are used for: being controlled the light source and are shone according to modulating frequency, and carry out demodulation process to the return light； According to the return light after demodulation, the fingerprint image of the finger is obtained.

In conjunction with fourth aspect and its above-mentioned implementation, in another implementation of fourth aspect, the light source with The liquid crystal display panel does not block mutually.

In conjunction with fourth aspect and its above-mentioned implementation, in another implementation of fourth aspect, the light source is logical Optical cement is crossed to be fixed below the glass cover-plate.

In conjunction with fourth aspect and its above-mentioned implementation, in another implementation of fourth aspect, the light source Angle between luminous flat and the surface of the glass cover-plate (1000) is not zero.

In conjunction with fourth aspect and its above-mentioned implementation, in another implementation of fourth aspect, the light source hair Light out is infrared light.

In conjunction with fourth aspect and its above-mentioned implementation, in another implementation of fourth aspect, the liquid crystal surface The display area of plate includes: fingerprint detection region, and the fingerprint detection region is used for: the finger is touched to carry out the fingerprint Identification, the light that the light source issues irradiate the return light that the finger generates and are transmitted to institute through the fingerprint induction region State fingerprint recognition mould group.

In conjunction with fourth aspect and its above-mentioned implementation, in another implementation of fourth aspect, the fingerprint inspection It is Chong Die with the virtual key in the display area of the liquid crystal display panel to survey region.

In conjunction with fourth aspect and its above-mentioned implementation, in another implementation of fourth aspect, the fingerprint inspection Surveying region includes multiple subregions, and the fingerprint recognition mould group further includes processing unit, and the processing unit is used for: according in institute The touch operation for stating fingerprint detection region, determines whether the multiple subregion has touch data；According to the multiple sub-district Whether domain has touch data, determines whether the touch operation is effective；If the touch operation is effective, known by the fingerprint Other mould group executes fingerprint recognition to the touch operation.

In conjunction with fourth aspect and its above-mentioned implementation, in another implementation of fourth aspect, the processing is single Member is also used to: if the number of the subregion in the multiple subregion with touch data is more than or equal to preset value, being determined The touch operation is effective.

In conjunction with fourth aspect and its above-mentioned implementation, in another implementation of fourth aspect, the fingerprint is known Other device further includes light sensor, and the processing unit is also used to: if with the son of touch data in the multiple subregion The number in region is more than or equal to preset value, and the light sensor is not blocked, determines that the touch operation is effective.

In conjunction with fourth aspect and its above-mentioned implementation, in another implementation of fourth aspect, the processing is single Member is also used to: if each subregion all has touch data in the multiple subregion, determining that the touch operation is effective.

In conjunction with fourth aspect and its above-mentioned implementation, in another implementation of fourth aspect, the fingerprint is known Other device further includes light sensor, and the processing unit is also used to: if each subregion all has in the multiple subregion Touch data, and the light sensor is not blocked, determines that the touch operation is effective.

In conjunction with fourth aspect and its above-mentioned implementation, in another implementation of fourth aspect, the processing is single Member is also used to: according to the position of each subregion and each time for obtaining touch data together, determining the touching The form of operation is touched, different forms corresponds to different application programs；If the touch operation is effective, know by the fingerprint After other mould group executes fingerprint recognition success to the touch operation, run corresponding with the form of the touch operation using journey Sequence.

In conjunction with fourth aspect and its above-mentioned implementation, in another implementation of fourth aspect, the multiple son Any two subregion is not overlapped in region, and the multiple subregion area equation；The multiple subregion is with the fingerprint The horizontal center line and/or vertical center line of detection zone are axis, symmetrical.

In conjunction with fourth aspect and its above-mentioned implementation, in another implementation of fourth aspect, the fingerprint is known Other mould group further includes processing unit and optical detection unit, and the processing unit is used for: being determined by the optical detection unit By the light intensity of the return light in the fingerprint detection region, the return light is that the light source is radiated at the fingerprint detection region Execute the light of the object back reflection of touch operation；According to the light intensity of the return light, determine whether the touch operation is effective；If The touch operation is effective, executes fingerprint recognition to the touch operation by the fingerprint recognition mould group.

In conjunction with fourth aspect and its above-mentioned implementation, in another implementation of fourth aspect, the fingerprint is known Other device further includes light sensor, and the processing unit is also used to: being preset if the light intensity of the return light is more than or equal to Light intensity, and the light sensor is not blocked, determines that the touch operation is effective.

In conjunction with fourth aspect and its above-mentioned implementation, in another implementation of fourth aspect, the processing is single Member is also used to: if the light intensity of the return light is more than or equal to default light intensity, according to the light intensity of the return light, determine described in Whether object is living body；If the object is living body, determine that the touch operation is effective.

In conjunction with fourth aspect and its above-mentioned implementation, in another implementation of fourth aspect, the fingerprint is known Other device further includes light sensor, and the processing unit is also used to: being preset if the light intensity of the return light is more than or equal to Light intensity, and the light sensor is not blocked, according to the light intensity of the return light, determines whether the object is living body；If The object is living body, determines that the touch operation is effective.

In conjunction with fourth aspect and its above-mentioned implementation, in another implementation of fourth aspect, the optics inspection Survey unit is photodiode.

In conjunction with fourth aspect and its above-mentioned implementation, in another implementation of fourth aspect, the processing is single Member is also used to: according to the light intensity of the return light, adjusting the measurement range of the photodiode.

Detailed description of the invention

Fig. 1 is the schematic diagram according to the terminal device with fingerprint identification function of the embodiment of the present application.

Fig. 2 is another schematic diagram according to the terminal device with fingerprint identification function of the embodiment of the present application.

Fig. 3 A and Fig. 3 B are the partial schematic diagrams according to the terminal device with fingerprint identification function of the embodiment of the present application.

Fig. 4 A to Fig. 4 D is multiple schematic diagrames according to the terminal device with fingerprint identification function of the embodiment of the present application.

Fig. 5 A and Fig. 5 B are two schematic diagrames according to the terminal device with fingerprint identification function of the embodiment of the present application.

Fig. 6 is the schematic block diagram of processing unit in the terminal device according to the embodiment of the present application.

Fig. 7 is the schematic flow chart according to the method for fingerprint recognition of the embodiment of the present application.

Fig. 8 A and Fig. 8 B are the schematic diagrames according to the terminal device of the embodiment of the present application.

Fig. 9 is another schematic flow chart according to the method for fingerprint recognition of the embodiment of the present application.

Figure 10 is another schematic flow chart according to the method for fingerprint recognition of the embodiment of the present application.

Figure 11 is another schematic flow chart according to the method for fingerprint recognition of the embodiment of the present application.

Figure 12 is the schematic diagram according to the terminal device of the embodiment of the present application.

Figure 13 is the schematic block diagram that mould group is identified according to the optical finger print of the terminal device of the embodiment of the present application.

Figure 14 is another schematic flow chart according to the method for fingerprint recognition of the embodiment of the present application.

Figure 15 is another schematic flow chart according to the method for fingerprint recognition of the embodiment of the present application.

Specific embodiment

Below in conjunction with attached drawing, technical solutions in the embodiments of the present application is described.

As electronic equipment steps into comprehensive screen epoch, the extruding that electronic equipment front fingerprint collecting region is shielded comprehensively, Therefore shield under (Under-display or Under-screen) fingerprint identification technology more and more attention has been paid to.Shield lower fingerprint to know Other technology, which refers to, is mounted on fingerprint recognition mould group (such as fingerprint recognition mould group) below display screen, to realize in display screen Fingerprint recognition operation is carried out in display area, does not need the region setting fingerprint collecting in electronic equipment front in addition to display area Region.

Under optical panel fingerprint identification technology carried out using the light returned from the top surface of equipment display component fingerprint induction and Other inductive operations.The light of the return carries the information of the object (such as finger) contacted with the top surface, by acquiring and detecting The light of the return realizes the particular optical sensor module being located at below display screen.The design of optical sensor module can be Desired optical imagery is realized by being properly configured to acquire and detect the optical element of the light returned.

It should be understood that the technical solution of the embodiment of the present application can be applied to various electronic equipments, such as smart phone, notes The portable or mobiles such as this computer, tablet computer, game station calculate equipment and electronic databank, automobile, bank's automatic cabinet Other electronic equipments such as member's machine (Automated Teller Machine, ATM), but the embodiment of the present application does not limit this.

Fig. 1 shows the schematic diagram of the terminal device 10000 with fingerprint identification function according to the embodiment of the present application, tool Body, which is the side view of the terminal device 10000, i.e. top of the left side of Fig. 1 corresponding to terminal device, the right side of the Fig. 1 Side corresponds to the bottom end of terminal device.As shown in Figure 1, the terminal device 10000 includes: glass cover-plate 1000, liquid crystal display panel 2000, backlight module 3000, fingerprint recognition mould group 4000 and fingerprint recognition light source 5000.

Specifically, which is located at the top layer of the terminal device 10000, is the terminal device 10000 Surface controls the terminal device 10000 by the touch operation for providing the interface of touch operation for user, meanwhile, also use Touch interface is provided when carrying out fingerprint recognition for finger.

It should be understood that the glass cover-plate 1000 can be specially transparent cover plate, such as glass or sapphire cover board, covering The front of terminal device 10000, and 1000 surface of glass cover-plate is also provided with protective layer.

Liquid crystal display panel 2000 in the embodiment of the present application is located at 1000 lower section of glass cover-plate, for showing image.The liquid Crystal panel 2000 can be without limitation for LCD screen or other passive light emitting displays, the embodiment of the present application.

Optionally, which can be touching display screen, can not only carry out picture and show, can also examine Touch or the pressing operation for surveying user, to provide a personal-machine interactive interface for user.For example, the terminal device 10000 It may include touch sensor, which can be specially touch panel (Touch Panel, TP), can be set On 2000 surface of liquid crystal display panel, partially it can also integrate or be monolithically integrated into inside liquid crystal display panel 2000, to form touch-control Display screen.

It should be understood that liquid crystal display panel 2000 is located at 1000 lower section of glass cover-plate in the embodiment of the present application, so-called finger is pressed Pressure can actually refer to that finger presses the glass cover-plate 1000 or cover glass cover board 1000 above liquid crystal display panel 2000 Protective layer.

Fingerprint recognition light source 5000 in the embodiment of the present application is located at the lower section of the glass cover-plate 1000, for shining and shining The finger of touch glass cover board is penetrated, which reflects by finger to generate return light, and the return light is for carrying out fingerprint recognition.

Optionally, the fingerprint recognition light source 5000 can be set glass panel 1000 lower section and with the liquid crystal display panel 2000 do not block mutually, for example, the fingerprint recognition light source 5000 is located at the bottom margin of the liquid crystal display panel 2000 in Fig. 1, or Person, the fingerprint recognition light source 5000 can also be located at 2000 surrounding other positions of liquid crystal display panel.

It should be understood that the fingerprint recognition light source 5000 can be on the one hand to avoid LCD and show using infrared light as light source Interference of the visible light of display screen to it, still further aspect infrared light naked eyes are invisible, do not influence LCD and show.Specifically, this is infrared Light emitting diode (Light Emitting Diode, LED), vertical cavity surface emitting laser (Vertical can be used in radiant Cavity Surface Emitting Laser, VCSEL) and laser diode (Laser Diode) etc., the embodiment of the present application It is not limited to this.

It should be understood that the fingerprint recognition light source 5000 can be fixed on 1000 lower section of glass cover-plate by optical cement.Fig. 2 shows According to another schematic diagram of the terminal device 10000 with fingerprint identification function of the embodiment of the present application, with the direction Fig. 1 one It causes, which is also the side view of terminal device 10000, i.e. top of the left side of Fig. 2 corresponding to terminal device, the right side of the Fig. 2 Side corresponds to the bottom end of terminal device.As shown in Fig. 2, the fingerprint recognition light source 5000 is fixed on glass cover by optical cement 5001 The lower section of plate 1000, wherein the light refractive index of the optical cement 5001 is same or similar with glass cover-plate 1000, to reduce The accounting that the light that fingerprint recognition light source 5000 issues is reflected in 1000 lower surface of glass cover-plate, improves the utilization rate of light source, The light that fingerprint recognition light source 5000 issues in this way can more be pointed into finger.

In the embodiment of the present application, between the luminous flat of the fingerprint recognition light source 5000 and the surface of glass cover-plate 1000 Angle can be equal to 0 or not equal 0, that is, fingerprint recognition light source 5000 laminating type can using it is smooth with two kinds of bias laid Mode.Specifically, Fig. 3 A and Fig. 3 B shows the terminal device 10000 with fingerprint identification function according to the embodiment of the present application Partial schematic diagram, Fig. 3 A and Fig. 3 B be fingerprint recognition light source 5000 and glass cover-plate 1000 two kinds of positional relationships.

If the angle between the luminous flat of fingerprint recognition light source 5000 and the surface of glass cover-plate 1000 is equal to 0, that is, refer to The luminous flat of line identification light source 5000 is parallel to the surface of glass cover-plate 1000, such as shown in Fig. 3 B, it is assumed here that the fingerprint Identification light source 5000 is rectangular block, and light-emitting area is the upper surface of rectangular block, the fingerprint recognition light source 5000 and glass cover Fixed by optical cement 5001 between plate 1000, the two is parallel to each other.Smooth advantage be to assemble it is more convenient, in structure Tolerance more preferably controls, but the disadvantage is that having the light of half can walk towards the transmitting backwards to the direction of fingerprint recognition mould group 4000, thus shadow Ring light utilization

In order to improve smooth light utilization, fingerprint recognition light source 5000 can incline towards 4000 direction of fingerprint recognition mould group Tiltedly certain angle carries out bias laid, that is, shown in Fig. 3 A, the luminous flat and glass cover-plate 1000 of fingerprint recognition light source 5000 Surface between angle be not 0, it is general by the fixed fingerprint recognition light source 5000 of optical cement 5001, but this laminating type The disadvantage is that assembly is more difficult.Therefore, the selection of specific laminating type needs to set according to actual conditions.

In the embodiment of the present application, the form of fingerprint recognition light source 5000 can be single independence, or more groups Become band.For example, Fig. 4 A to Fig. 4 D shows the terminal device 10000 with fingerprint identification function according to the embodiment of the present application Multiple schematic diagrames, Fig. 4 A to Fig. 4 D is the top view of the terminal device 10000, i.e. each width diagram in Fig. 4 A to Fig. 4 D The surface of terminal device 10000 is gone out.In addition to Fig. 4 D, fingerprint recognition light source 5000 in excess-three width figure (Fig. 4 A to scheme C) Form is single independence, and uses bilateral symmetry formula and be laid out, and can taking into account finger in this way, different angle presses on the lcd screen Under fingerprint detection effect, symmetrical layout can not also be used, can also use greater number fingerprint recognition light source 5000, And then increase the semaphore of fingerprint detection, for example, fingerprint recognition light source 5000 forms band light source, but the application is real in Fig. 4 D Example is applied to be not limited to this.

Backlight module 3000 in the embodiment of the present application is located at 2000 lower section of liquid crystal display panel, for being the liquid crystal display panel 2000 display images provide light source, and the glass cover-plate 1000 in order to liquid crystal display panel 2000 through surface shows image to user.

It should be understood that the backlight module 3000 can be multilayered structure, the multilayered structure include light guide plate 3200 (in order to The light guide plate difference being arranged at other positions, hereinafter referred to as the first light guide plate 3200) and non-light conducting plate structure 3100, wherein it is non- Light conducting plate structure 3100 can be one layer or multilayered structure.It can be by fingerprint recognition mould group in order to be able to achieve the light of finger outgoing 4000 are collected into, and need to do backlight module 3000 special processing, i.e., the non-light conducting plate structure 3100 includes that fingerprint detection is saturating Light region 3101, the fingerprint detection transmission region 3101 are used for transmission the return light reflected by finger, which is used for Carry out fingerprint recognition, wherein when the light conducting plate structure 3100 is multilayered structure, which refers to each The fingerprint detection transmission region that layer structure includes.

Specifically, the non-light conducting plate structure of the backlight module 3000 may include following at least one layer: composite membrane 3110 increases Light film 3120, diffusion barrier 3130, reflectance coating 3140 (in order to at other positions be arranged reflectance coating distinguish, hereinafter referred to as first Reflectance coating 3140) and steel plate 3150.For example, as shown in Fig. 2, the backlight module 3000 of the terminal device 10000 be multilayered structure, It from top to bottom also successively include: composite membrane 3110, bright enhancement film 3120, diffusion barrier other than the first intermediate light guide plate 3200 3130, the first reflectance coating 3140 and steel plate 3150.

It should be understood that further including the light source of the backlight module 3000 at 3200 edge of the first light guide plate, which can be set In the bottom margin position of the first light guide plate 3200, i.e. Fig. 2 opens the right positions of the first light guide plate 3200, which can be Point light source or linear light source, first light guide plate 3200 transmit the light of the light source, and it is corresponding whole to illuminate to form it into area source A liquid crystal display panel 2000.

As shown in Fig. 2, being the first reflectance coating 3140 in the lower section of first light guide plate 3200, due to the first light guide plate 3200 Light source can be propagated to upper and lower both direction, and liquid crystal display panel 2000 is located at the top of the first light guide plate 3200, in order to improve The light that first light guide plate 3200 is propagated downwards can be reflected back to upload by the utilization rate of light by first reflectance coating 3140 It is defeated, to illuminate liquid crystal display panel 2000, improve light utilization.Since the first reflectance coating 3140 is opaque, it cannot realize that fingerprint is examined It surveys, in order to effectively detect fingerprint, which includes fingerprint recognition transmission region 3141, the fingerprint recognition light transmission Region 3141 corresponds to the position of fingerprint recognition mould group 4000, wherein may include optics sense in the fingerprint recognition mould group 4000 Device is answered, which corresponds specifically to the position of the optical sensor, the fingerprint recognition transmission region 3141 can be the through-hole on first reflectance coating 3140, or can also on first reflectance coating 3140 a song area filling Optical ink is to form the fingerprint recognition transmission region 3141, wherein the optical characteristics of the optical ink of filling and this first Reflectance coating 3140 is same or similar, to reduce the influence for showing image to liquid crystal display panel 2000.

As shown in Fig. 2, being steel plate 3150 in the lower section of first reflectance coating 3140, which plays protection and branch Support the effect of its superstructure.Since steel plate 3150 is opaque, fingerprint detection cannot be realized, it, should in order to effectively detect fingerprint Steel plate 3150 includes fingerprint recognition transmission region 3151, which corresponds to fingerprint recognition mould group 4000 Position, for example, the fingerprint recognition transmission region 3151 corresponds specifically to optical sensor in the fingerprint recognition mould group 4000 Position, the fingerprint recognition transmission region 3151 can be the through-hole on the steel plate 3150.

As shown in Fig. 2, being diffusion barrier 3130 in the top of the first light guide plate 3200, the diffusion barrier 3130 is to therethrough Light has even light action, can also be filtered through the flaw of the light of the first light guide plate 3200.Current diffusion barrier 3130 is to visible light And infrared light has mist degree, and if fingerprint detection light source 5000 is infrared light, in order to effectively penetrate the infrared light of the detection fingerprint, Special adaptations are carried out to it, specific processing mode is similar with the first reflectance coating 3140, is provided with fingerprint on the diffusion barrier 3130 Identify that transmission region 3131, the fingerprint recognition transmission region 3131 correspond to the position of fingerprint recognition mould group 4000, for example, should Fingerprint recognition transmission region 3131 corresponds specifically to the position of optical sensor in the fingerprint recognition mould group 4000, the fingerprint recognition Transmission region 3131 can be the through-hole on the diffusion barrier 3130, or can also be in a region in the diffusion barrier 3130 Fill optical ink to form the fingerprint recognition transmission region 3131, wherein the optical characteristics of the optical ink of filling with should Diffusion barrier 3130 is same or similar, to reduce the influence for showing image to liquid crystal display panel 2000.

As shown in Fig. 2, being bright enhancement film 3120 above diffusion barrier 3130, which can increase a certain specific The intensity and brightness of light on direction, current bright enhancement film 3120 are to be added lustre to by physics prism, therefore examine to fingerprint mostly Survey is that have inhibition, and in order to effectively detect fingerprint, specific processing mode is similar with the first reflectance coating 3140, the bright enhancement film Fingerprint recognition transmission region 3121 is provided on 3120, which corresponds to fingerprint recognition mould group 4000 position, for example, the fingerprint recognition transmission region 3121 corresponds specifically to optical sensor in the fingerprint recognition mould group 4000 The position of device, which can be the through-hole on the bright enhancement film 3120, or can also add lustre at this Optical ink is filled in one region of film 3120 to form the fingerprint recognition transmission region 3121, wherein the optics of filling The optical characteristics of ink is same or similar with the bright enhancement film 3120, to reduce the influence for showing image to liquid crystal display panel 2000.

As shown in Fig. 2, being composite membrane 3110 above bright enhancement film 3120, since it has angle restriction special light Property, it is unfavorable for fingerprint detection, therefore improved it, specific processing mode is similar with the first reflectance coating 3140, this is compound Fingerprint recognition transmission region 3111 is provided on film 3110, which corresponds to fingerprint recognition mould group 4000 position, for example, the fingerprint recognition transmission region 3111 corresponds specifically to optical sensor in the fingerprint recognition mould group 4000 The position of device, the fingerprint recognition transmission region 3111 can be the through-hole on the composite membrane 31100, or can also be compound at this Optical ink is filled in one region of film 3110 to form the fingerprint recognition transmission region 3111, wherein the optics of filling The optical characteristics of ink is same or similar with the composite membrane 3110, to reduce the influence for showing image to liquid crystal display panel 2000.

It should be understood that the fingerprint detection transmission region 3101 that the non-light conducting plate structure 3100 of this in the embodiment of the present application includes can With corresponding including above-mentioned fingerprint detection transmission region 3111,3121,3131,3141 and 3151.

It should be understood that 3111,3121,3131,3141 and of fingerprint detection transmission region of each film layer in the embodiment of the present application 3151 size can be configured according to practical application.For example, as shown in Fig. 2, for being located at the most upper of backlight module 3000 The structure of layer, such as Tu2Zhong top layer are composite membrane 3110, the size of the fingerprint detection transmission region 3111 of the composite membrane 3110 It can be configured according to the field angle (Field of view, FOV) of the fingerprint recognition mould group 4000 of lower section, wherein this refers to Line identifies that mould group 4000 includes optical sensor, may include camera lens in the optical sensor, fingerprint recognition mould group here 4000 FOV refers to the FOV of the camera lens, i.e., as shown in Fig. 2, the size of fingerprint detection transmission region 3111 is arranged To be equal or close with opening size of the corresponding angle, θ of FOV of fingerprint recognition mould group 4000 at composite membrane 3110, For example, the fingerprint detection transmission region 3111 of the composite membrane 3110 can be through-hole or be the region for filling optical ink, it should The size in the region of the size or filling optical ink of through-hole can be equal to or slightly greater than the FOV of fingerprint recognition mould group 4000 Opening size of the corresponding angle, θ at composite membrane 3110.

And the size for being located at the fingerprint detection transmission region of each layer structure of 3110 lower section of composite membrane can also be according to this The corresponding angle, θ of FOV is configured in the size of each layer, that is, the fingerprint inspection of each layer structure below the composite membrane 3110 The size for surveying transmission region can be according to open-mouth ruler of the corresponding angle, θ of FOV of fingerprint recognition mould group 4000 at this layer of structure It is very little, it is sequentially reduced from top to bottom；Alternatively, the effect of the top view in view of each layer structure, can also will be located at the composite membrane The fingerprint detection transmission region of each layer structure of 3110 lower sections is sized to slightly larger than fingerprint detection transmission region 3111, this Sample can only see the edge of the fingerprint detection transmission region 3111 of composite membrane 3110 from the upper surface of the terminal device 10000, and Other edges are not can be appreciated that, so that the visual effect on the surface of the terminal device 10000 is more preferable, for example, under the composite membrane 3110 The fingerprint detection transmission region of each layer structure of side can be through-hole, then the through-hole of every layer of structure is equal from top to bottom or successively Increase, alternatively, the fingerprint detection transmission region of each layer structure of 3110 lower section of composite membrane may be filling optical ink The size in region, the region of the optical ink of each layer of filling can be equal from top to bottom or successively increases.The application is implemented Fingerprint recognition mould group 4000 in example is located at 3101 lower section of fingerprint detection transmission region, saturating by the fingerprint detection for receiving The return light in light region 3101, and fingerprint image is obtained according to the return light, which carries out for terminal device 10000 Fingerprint recognition.

It should be understood that the optical ink used in the embodiment of the present application has wavelength selectivity, to fingerprint recognition light source (5000) light issued has good transmitance, for example, the fingerprint recognition light source (5000) issues infrared light, then selects to fill Optical ink in the fingerprint detection transmission region of each layer has good transmitance to infrared light.

Fingerprint recognition mould group 4000 in the embodiment of the present application is located at 3101 lower section of fingerprint detection transmission region, for connecing The return light for passing through the fingerprint detection transmission region 3101 is received, and the fingerprint recognition is carried out to the finger according to the return light.Its In, which can be specially optical finger print identification mould group, be mainly used for acquiring the finger print information of user (such as information in fingerprint).

It should be understood that the lower section of the fingerprint recognition mould group 4000 in the embodiment of the present application is also provided with circuit board, such as Flexible circuit board (Flexible Printed Circuit, FPC), the fingerprint recognition mould group 4000 can pass through pad solder The electrical property with the other elements of other peripheral circuits or terminal device 10000 is realized to the circuit board, and by the circuit board Interconnection and signal transmission.For example, the fingerprint recognition mould group 4000 can receive the terminal device 10000 by the circuit board The control signal of processing unit, and can also be exported the fingerprint detection signal or fingerprint image to end by the circuit board The processing unit of end equipment 10000 or control unit etc..

In the embodiment of the present application, the position of fingerprint recognition mould group 4000 is corresponded on the surface of the terminal device 10000 On, there is fingerprint detection region, which is a certain specific region on the display screen of the terminal device 10000, That is the fingerprint detection region a certain specific region that is liquid crystal display panel 2000, for example, the fingerprint detection region can extend to half A display area even entire display area, to realize half screen or full frame fingerprint detection.User is needing to set the terminal Standby 10000 are unlocked or when other fingerprint authentications, it is only necessary to by finger pressing in the finger for being located at liquid crystal display panel 2000 Line detection zone can realize fingerprint input operation.

Optionally, which is at least partially disposed at liquid The display area of crystal panel 2000, for example, as shown in Fig. 2, the fingerprint detection region 2100 is entirely located in liquid crystal display panel 2000 In display area.The area in fingerprint detection region 2100 can be different from the area of fingerprint recognition mould group 4000, such as pass through example The light path design of such as lens imaging, reflective folding light path design or the convergence of other light or reflection light path design, can So that the area in the fingerprint detection region 2100 of the fingerprint recognition mould group 4000 is greater than the area of fingerprint recognition mould group 4000.? In other substitution implementations, if carrying out optical path guidance using such as light collimating fashion, the fingerprint recognition mould group 4000 Fingerprint detection region 2100 can also be designed to consistent with the area of the fingerprint recognition mould group 4000.

It should be understood that fingerprint recognition mould group 4000 can specifically include one or more optical sensors in the embodiment of the present application Device；The optical sensor can be arranged side by side, such as be disposed side by side on the lower section of the fingerprint detection transmission region 3101, above-mentioned finger The area of line identification mould group 4000 is the area of its one or more optical sensor for including.

When finger touch, press or close to (for ease of description, referred to collectively herein as pressing) in fingerprint detection area When domain, which irradiates the finger and reflects to form above-mentioned return light, the return light at the finger The finger print information of user's finger can be carried.For example, after the light is reflected by the fingerprint on user's finger surface, due to Fingers The wrinkle ridge of line and the reflected light of line paddy are different, therefore the return light Portable belt reflected has the finger print information of user.The return Light is after the fingerprint detection transmission region 3101 of fingerprint detection region and backlight module 3000, by fingerprint recognition below The optical sensor of mould group 4000 receives and is converted to corresponding electric signal, i.e. fingerprint detection signal.Terminal device 10000 can obtain the finger print information of user based on the fingerprint detection signal, and can be tested with further progress fingerprint matching Card, to complete the authentication of active user in order to confirm whether it has permission and carry out accordingly to terminal device 10000 Operation.

Since fingerprint collecting and detection can be realized in the fingerprint detection region of liquid crystal display panel 2000, using the above structure The terminal device 10000 normal picture that makes the fingerprint detection region not influence liquid crystal display panel 2000 show, so being not necessarily to The fingerprint detection region is arranged in special reserved space in the front of terminal device 10000, thus can be using screen scheme comprehensively, i.e., The display area of the liquid crystal display panel 2000 can extend substantially to the entire front of terminal device 10000.

It, need to will be each of in the whole lamination of backlight module 3000 but in order to realize the acquisition and detection of shielding lower optical finger print Composition does special processing, enables non-light conducting plate structure 3100 have fingerprint recognition transmission region 3101, this will affect liquid crystal display panel 2000 corresponding region shows image effect, and therefore, it is necessary to consider how to reduce this influence.

Optionally, as one embodiment, due to being usually provided with virtual key on liquid crystal display panel 2000, and virtual key Position display is required it is lower, therefore, can by the position of the fingerprint recognition mould group 4000 be arranged correspond to liquid crystal display panel The lower section of 2000 virtual key position, that is, enable fingerprint detection region Chong Die with virtual key region, to reduce fingerprint inspection Survey the influence that image is shown to liquid crystal display panel.

Specifically, Fig. 5 A and Fig. 5 B shows the terminal device with fingerprint identification function according to the embodiment of the present application 10000 two schematic diagrames, Fig. 5 A and Fig. 5 B are the top view of the terminal device 10000, i.e. each width figure in Fig. 5 A and Fig. 5 B The surface of terminal device 10000 is shown, and by taking the terminal device 10000 is mobile phone as an example.As fig. 5 a and fig. 5b, scheme Mobile phone surface shown in 5A and Fig. 5 B shows virtual key 1110,1120 and 1130, and each virtual key can have difference Function, concrete function can be configured according to practical application, such as wherein virtual key 1110 can be set to Home Key.

The lower broken line frame of Fig. 5 A indicates a kind of possible position in fingerprint detection region 2100, that is, fingerprint inductor In dotted line frame, the position is not be overlapped with virtual key.Alternatively, the fingerprint detection region 2100 can also be set to and void Any one overlapping in quasi- key 1110,1120 and 1130, for example, virtual key 1110 and fingerprint detection area in Fig. 5 A and Fig. 5 B Domain 2100 is overlapped, and 1110 lower position of virtual key corresponds to fingerprint recognition mould group 4000, can indicate that user refers in this way Line pressing area can also reduce the light filling requirement of the display of fingerprint detection region 2100, while more demanding to showing in user Occasion, if user watch film amusement, browsing photo scene under, as shown in Figure 5 B, by following virtual key location Domain be disposed as black or other colors can not display area, that is, fingerprint detection region 2100 be also configured as black can not Display area can further reduce light filling requirement, so as to reduce the cost of light filling.

Optionally, as another embodiment, light compensating apparatus can also be increased in the position in fingerprint detection region 2100, It is exactly the corresponding position setting light compensating apparatus in the fingerprint detection transmission region 3101 of backlight module 3000, to compensate backlight module 3000 light loss after treatment.Specifically, as shown in Fig. 2, the terminal device 10000 further includes light compensating apparatus 6000, position In the fingerprint detection transmission region 3101 lower section and be located at the fingerprint recognition mould group 4000 above, be used for it is saturating to the fingerprint detection Light region 3101 carries out backlight compensation.

Specifically, it as shown in Fig. 2, the light compensating apparatus 6000 may include backlight 6100 and the second light guide plate 6200, is somebody's turn to do Backlight 6100 is located at around second light guide plate 6200, for example, the arrangement of backlight 6100 is laid out using central symmetry, such as Shown in Fig. 2, backlight 6100 is located at the both ends of second light guide plate 6200, and the number of backlight 6100 can for 2 or with On；Second light guide plate 6200 is used to conduct the light of the backlight 6100 sending.

Optionally, which can use light source identical with backlight module 3000, for example, by using white light LEDs Lamp, can have an almost the same optical effect in this way, the light of compensation with it is almost the same in initial backlight mould group 3000.For Guarantee the effect of light filling, the light and coloration of light filling can be calibrated before factory referring to the optics of backlight module, it will The electric current and the light source in backlight module 3000 of backlight 6100 synchronize coordinated control, in this way under different backlight illuminations It can guarantee that light filling brightness and backlight module 3000 are almost the same.

Optionally, in order to improve the utilization rate of light, the light compensating apparatus 6000 further include: be located at the backlight 6100 and should Second reflectance coating 6300 of 6200 lower section of the second light guide plate, for reflecting the backlight to the fingerprint detection transmission region 3101 The light of 6100 light issued and second light guide plate 6200 conduction.Wherein, which can be used separation scheme, with Second light guide plate 6200 is installed separately, and be can also be used and is carried out coating process in the second light guide plate 6200 to form the second reflectance coating 6300。

Since second reflectance coating 6300 is different, it is possible to through-hole 6310 is set on second reflectance coating 6300, it should Through-hole 6310 is used to be used for the return light of fingerprint detection to 4000 transparent transmission of fingerprint recognition mould group.

Optionally, the size of the through-hole 6310 can be configured according to the FOV of the fingerprint recognition mould group 4000 of lower section, For example, as shown in Fig. 2, setting angle, θ corresponding with the FOV of fingerprint recognition mould group 4000 for the size of the through-hole 6310 Opening size at the second reflectance coating 6300 is equal or close.

It should be understood that since fingerprint recognition mould group 4000 may be transmitted to there are the light of through-hole 6300, light compensating apparatus 6000 and Fingerprint detection process is influenced, therefore optical filter can be provided between the light compensating apparatus 6000 and the fingerprint recognition mould group 4000 7000, which is used to filter out light transmit to the fingerprint recognition mould group 4000, in addition to the return light, for example, 5000 infrared lights of fingerprint detection light source, then can filter out the optical filter of visible light as optical filter 7000 using saturating infrared light, To eliminate LCD screen show and environment in interference of the visible light to fingerprint detection.

In the embodiment of the present application, in addition to above-mentioned various pieces, which can also include some common groups Part, as fig. 5 a and fig. 5b, by taking the terminal device 10000 is mobile phone as an example, which can also include light sensor 1900, earpiece 1800, non-display area 1700 (i.e. frame portion), (the i.e. corresponding area of liquid crystal display panel 2000 of display area 1600 Domain), volume key 1500 and power key 1400, the embodiment of the present application is not limited to this.

One of them for the difficult point that optical finger print is encountered under shielding at present is exactly that the strong light in environment does fingerprint detection It disturbs, such as user, under the outdoor sun, light is stronger, will affect the detection of optical sensor in fingerprint recognition mould group.For Solve the problems, such as this, the terminal device 10000 in the embodiment of the present application can also include processing unit, pass through the control unit control The luminous frequency of fingerprint recognition light source 5000 processed, thus in shielding environment strong light influence.

Specifically, Fig. 6 shows the schematic block diagram of processing unit in the terminal device according to the embodiment of the present application, In, which can be particularly located in fingerprint recognition mould group 4000.As shown in fig. 6, the processing unit 4100 is used for: control The fingerprint recognition light source 5000 shines according to modulating frequency, and carries out demodulation process to the return light；According to the return after demodulation Light obtains the fingerprint image of the finger.

Specifically, which may include modulation circuit 4110, and processing unit 4100 passes through modulation circuit 4110 control fingerprint recognition light sources 5000 shine according to preset modulating frequency, i.e., fingerprint recognition light source 5000 can be according to default Modulating frequency issue optical signal, for example, by using the operation that some specific modulating frequency is opened or closed, by finger After reflection, fingerprint recognition mould group 4000 receives the return light after finger reflects, which still has the modulating frequency, In order to obtain final effective fingerprint signal, which can also include demodulator circuit 4120, the demodulator circuit Received optical signal is carried out demodulation process by 4120, and generates fingerprint image according to the optical signal after reduction, in order to which terminal is set Standby 10000 carry out fingerprint recognition according to the fingerprint image.Due to the light overwhelming majority in environment can be considered frequency it is constant or The slowly optical signal of frequency can be very good the influence of strong light in shielding environment using the method for modulation.

Optionally, which can also include other circuits, for example, the processing unit 4100 can also wrap Amplifying circuit is included, for amplifying processing to optical signal or electric signal；Can also include filter circuit, for optical signal or Electric signal is filtered；It can also include analog to digital conversion circuit, for converting analog signals into electric signal, or can also wrap The circuit of other purposes is included, the embodiment of the present application is not limited to this.

Therefore, the terminal device with fingerprint identification function in the embodiment of the present application, it is special by being carried out to backlight module Different processing, such as through-hole is set on backlight module or fills the mode of optical ink in through-hole, so that being examined for fingerprint The light of survey can be transmitted to fingerprint recognition mould group through backlight module, solve the problems, such as to realize optical finger print detection under LCD screen, And the display effect of LCD script is not influenced.Additionally, it is contemplated that backlight module carries out special place to realize fingerprint detection function To the influence of display effect after reason, by the way that light filling component is arranged, light loss after compensation backlight module membrane material is specially treated, or Person can also arrange virtual key in fingerprint detection region, can not only be used for the instruction of fingerprint pressing area, can also reduce fingerprint The light filling requirement that detection zone is shown, while the occasion more demanding to display in user, such as film amusement, browsing photo, By following fingerprint detection region be set as black can not display area, light filling requirement can be reduced, further so as to reduce The cost of light filling.Meanwhile by the way that the light source that finger irradiates is modulated and is demodulated, solves in environment strong light to fingerprint detection Interference problem, effectively avoid the interference of visible light that backlight in LCD issues to fingerprint detection.

The touch screen size of the terminal devices such as existing mobile phone is increasing, while user-friendly, but carry and It makes troubles in operation to user, can generate and accidentally touch, especially the touch screen marginal position of mobile phone is even more to be easy to appear accidentally touching Situation, and shield lower optical fingerprint identification technology, fingerprint detection region is usually arranged in the marginal position of touch screen, accidentally touching can increase The frequency of adding fingerprint identification, and there is presently no a kind of effective methods to solve the problems, such as whether be accidentally touching operation.Therefore, originally Application embodiment proposes a kind of method for fingerprint recognition, so that erroneous judgement is lower, identifies rapider.Fig. 7 shows basis The schematic block diagram of the method 100 for fingerprint recognition of the embodiment of the present application.This method 100 can be executed by terminal device, The terminal device can be terminal device 200 as shown in Figure 8 A and 8 B, as shown in Fig. 8 A and Fig. 8 B, the terminal device 200 Including touch screen 210 and fingerprint recognition mould group 220, which includes fingerprint detection region 211, the fingerprint detection region Fingerprint recognition mould group 200 is correspondingly arranged below 211 position；The fingerprint detection region 211 includes multiple subregions, such as Fig. 8 B It is shown, for example, multiple subregion can be the region of 5 small cubes in figure.

Optionally, which can correspond to above-mentioned terminal device 10000, that is, this method can be by end End equipment 10000 executes, or can also be other terminal devices；Similar, the fingerprint recognition mould group of the terminal device 200 220 can identify mould group for optical finger print, such as can be above-mentioned fingerprint recognition mould group 4000, or may be other fingerprints Identify mould group；Touch screen 210 can be liquid crystal display, such as corresponding to above-mentioned glass cover-plate 1000 and/or liquid crystal display panel 2000, or Person may be other planes, such as OLED screen；Fingerprint identification region 211 can correspond to above-mentioned fingerprint identification region 2100, But the embodiment of the present application is not limited to this.

As shown in fig. 7, this method 100 includes: S110, according to the touch operation in the fingerprint detection region, determine that this is more Whether sub-regions have touch data；Whether S120 has touch data according to multiple subregion, determines the touch operation Whether effectively；S130 executes fingerprint recognition to the touch operation by the fingerprint recognition mould group if the touch operation is effective.

It should be understood that the touch operation in the fingerprint detection region may be the touch operation of the finger of user, such as user The invalid touch operation of effective touch operation or user unintentionally when needing to unlock mobile phone；Alternatively, the fingerprint detection region Interior touch operation may also be invalid touch operation caused by the mistaken touch of other objects, and terminal device is it needs to be determined that the touch It whether effective operates.

Specifically, in S110, the fingerprint detection region detection of terminal device is to touch operation, then the fingerprint detection region Each region can be determined that with touch data in interior multiple subregions, for any subregion, if inspection in the subregion Measure touch data, then it is assumed that the subregion is touched.

Optionally, it can determine whether subregion has touch data in several ways.For example, fingerprint recognition mould group 220 for optical finger print identify mould group when, then whether can detect light according in subregion, determine whether subregion has touching Data are touched, for example, the light source of fingerprint identification process is that infrared light determines in subregion when then detecting infrared light in subregion With touch data, other light effective, and detect of touch data in the subregion, not can determine that the sub-district in other words Have touch data in touch data, that is, subregion invalid in domain.Alternatively, according to the strong of the light detected in subregion Degree and/or brightness, determine whether subregion has touch data, for example, the intensity of the light detected in subregion be greater than or When person's preset strength, determining has digital-to-analogue data in the subregion, the touch data is effective in other words, if detecting in subregion The intensity of light when being less than the preset strength, determine do not have digital-to-analogue data in the subregion, in other words the touch data without Effect.

In S120, whether terminal device has touch data according to multiple subregion, whether determines the touch operation Effectively.Specifically, whether terminal device can have touch data according only to multiple subregions, determine whether the touch operation has Effect；Or whether terminal device can have touch data and other decision conditions in conjunction with multiple subregions, determine the touching jointly Whether effective touch operation.

Optionally, as one embodiment, whether terminal device can have touch data according only to multiple subregions, really Whether the fixed touch operation is effective.Specifically, terminal device can determine according to the distribution situation of subregion and judge that the touch is grasped Make whether effective condition.For example, when the number of multiple subregions is more, decision condition setting are as follows: if multiple subregion In the number of the subregion with touch data be more than or equal to preset value, terminal device determines that the touch operation is effective.Again For example, decision condition can be set if multiple subregion numbers are less are as follows: if each subregion all has in multiple subregion Touch data determines that the touch operation is effective.

Optionally, before S110, this method 100 can also include: according to preset rules, on the fingerprint detection region Determine multiple subregion.Specifically, can be according to practical application, determining multiple subregions on fingerprint detection region 211 Distribution situation.

Optionally, it can be arbitrary shape which, which may include: the shape of any subregion in multiple subregion, Shape, and the shape of different subregion can be same or different is for ease of description, identical with shape below and be pros It is illustrated for shape.

Optionally, the preset rules can also include: in multiple subregion different subregions may be sized to It is equal or unequal, for ease of description, it is illustrated so that size is identical as an example below.

Optionally, the preset rules can also include: the distribution of multiple subregion can be to be symmetrical, or can be with For according to a certain percentage with rule be distributed, or may be random distribution, for ease of description, here with it is symmetrical in order to It is illustrated, multiple subregion is axial symmetry distribution, and symmetry axis includes the horizontal center line in fingerprint detection region and/or vertical Center line.

Optionally, which can also include: that there may be two or more sub-districts in multiple subregion Domain has overlapping region, and there may also be two or more subregions not to be overlapped distribution completely in multiple subregion, For ease of description, it is illustrated so that any two subregion in multiple subregions is not overlapped as an example here.

Optionally, which can also include: that the number of multiple subregion is arranged according to practical application.For example, It can be arranged on fingerprint detection region 211 and be distributed the less multiple subregions of more dispersed number.As shown in Figure 8 B, referring to 5 sub-regions, i.e. square 1-5 are selected in line detection zone 211, since subregion number is less, so corresponding, terminal is set For when can all have effective touch data in each subregion in multiple subregion, determine that corresponding touch operation has Effect；And does not have effective touch data there are at least one subregion in multiple subregion or do not have touch data When, determine that corresponding touch operation is invalid.

For another example equally distributed subregion array can also be arranged on fingerprint detection region 211, such as setting 3*3 Subregion array, totally 9 sub-regions, since subregion number is more, terminal device can exist in multiple subregion When the number of the subregion of effective touch data is more than or equal to preset value, determine that corresponding touch operation is effective, otherwise without Effect, wherein preset value can be configured according to practical application, such as the subregion array of above-mentioned 3*3, and preset value can be with It is set as 6,7 or 8.

Since subregion setting at this time is more, so in the effective touch operation of user, even if finger touches slightly Deviate, can also be identified as effectively touching, and when preset value is not achieved in the quantity with effective touch data subregion, still It can identify mistaken touch.

Optionally, as another embodiment, whether terminal device can also have touch data in conjunction with multiple subregions With other decision conditions, determine whether the touch operation is effective jointly.Specifically, as shown in Fig. 8 A and Fig. 8 B, the terminal device 200 can also include light sensor 230, which is located at the surface of terminal device 200, be used for detection light Line.For example, as shown in Figure 8 A and 8 B, the light sensor 230 on mobile phone is generally arranged at the top of mobile phone, can be used for examining Survey whether position at this has object to block.

Terminal device can be in conjunction with the testing result of the light sensor 230 and the testing result of above-mentioned subregion, altogether It is whether effective with determining touch operation.Specifically, if the number of the subregion in multiple subregion with touch data is greater than Or it is equal to preset value, and the light sensor is not blocked, terminal device determines that the touch operation is effective.Alternatively, if this is more Each subregion all has touch data in sub-regions, and the light sensor is not blocked, and terminal device determines the touch Operation is effective.

In the case where terminal device determines the effective situation of the touch data in subregion, according to the detection of light sensor 230 As a result, the mistaken touch under individual scenes can be excluded, for example, mobile phone is placed in pocket user or mobile phone is held in user hand In, user is to be not intended to the fingerprint detection of mobile phone to be triggered, that is, need to exclude mistaken touch at this time.

In S130, if the touch operation is effective, terminal device executes the touch operation by the fingerprint recognition mould group Fingerprint recognition.If the touch operation is invalid, terminal device does not execute fingerprint recognition.

It should be understood that terminal device is when determining that the touch operation in fingerprint detection region is effective, further according to the fingerprint detection The touch data in region obtains the corresponding fingerprint image of touch operation, in order to execute fingerprint recognition.

Optionally, the method 100 in the embodiment of the present application can also include: according to the position of each subregion and every A time for obtaining touch data together, determine that the form of the touch operation, different forms correspond to different application programs； If the touch operation is effective, after passing through the fingerprint recognition mould group and executing fingerprint recognition success to the touch operation, runs and be somebody's turn to do The corresponding application program of the form of touch operation.

Specifically, terminal device according to the position of each subregion and can get time of touch data, determine The form of touch operation, that is, determine execute touch operation finger operation form, wherein the form of the touch operation or Person says that the operation form of finger may include sliding or sliding from left to right from up to down, each sliding form can correspond to One application program.

Specifically, as shown in Figure 8 A and 8 B, it is assumed that fingerprint detection region 211 has 5 sub-regions shown in Fig. 8 B, root The sequencing that the time of data is obtained according to the position of 5 sub-regions and each subregion of terminal device records, determines The form of touch operation, the form of the touch operation may include from up to down, bottom-up, right-to-left and from left to right etc. Several touches or sliding, each touches or slides a corresponding application program, for example, correspondence checks telephone directory from up to down, Bottom-up corresponding operation camera, right-to-left is corresponding to return to page up etc..

When practical application, for any one touch operation, if the subregion 1 for being located at the most left side obtains at first touches number According to intermediate subregion 2,5 and 4 obtains after subregion 1, and the subregion 3 of rightmost finally obtains, then the touch operation Form be that touch or sliding from left to right determines touch operation then after the touch data for determining 5 sub-regions is effective Effectively, then corresponding to execute application program corresponding with the touch or sliding from left to right, it corresponds to from up to down as described above It checks telephone directory, then runs telephone directory；Or need further exist for fingerprint identification process, then it is advanced after determining touch operation effectively Row fingerprint recognition runs telephone directory after fingerprint recognition success.

Therefore, multiple subregions, root is arranged in fingerprint detection region in the method for fingerprint recognition of the embodiment of the present application It is non-with effective touch data according to multiple subregions, determines whether touch operation is effective, and hold when touch operation is effective Row fingerprint recognition, during so that touch screen triggers unlocked by fingerprint under screen lock state or black state, False Rate is lower, Identification is rapider, has stronger anti-interference ability to environment light, improves the speed and efficiency of fingerprint recognition.

Below with reference to two specific application examples, the method for fingerprint recognition of the embodiment of the present application is described in detail.

Fig. 9 shows another schematic flow chart of the method 300 for fingerprint recognition of the embodiment of the present application.Such as Fig. 9 Shown, this method 300 can be executed by terminal device as shown in Figure 8 A and 8 B, for example, the terminal device can be mobile phone. This method 300 includes the following steps.

S301 starts.The touch screen of terminal device has fingerprint identification region, includes multiple sons in the fingerprint identification region Region.The distribution of multiple subregion is similar with method 100, and details are not described herein.

For ease of description, it is illustrated by taking distribution as shown in Figure 8 A and 8 B as an example here.

S302, fingerprint detection region detection touch operation.The touch operation may be mistaken touch, it is also possible to for effectively touching It touches.

S303, judges whether each subregion has finger down.It specifically, can be according in the above method 100 S120 determines whether each subregion has effective touch data, if so, then illustrating that the subregion has finger down, if not having Have, then without finger down.

When determining has finger down in 5 sub-regions as shown in Figure 8 B, S304 is continued to execute；If not there is hand entirely Finger is pressed, it is determined that current touch operation is mistaken touch, continues to test touch operation next time, and continue to execute S303.

S304, judges whether the light sensor of mobile phone is blocked.If light sensor is not blocked, it is determined that current Touch operation be it is effective, then continue to execute S305；If light sensor is blocked, it is determined that current touch operation is accidentally to touch It touches, continues to test touch operation next time, and continue to execute S303.

S305 starts to execute fingerprint recognition.Current touch operation effectively, according to the touch operation obtains fingerprint image, root Fingerprint recognition is carried out according to the fingerprint image.

S306 terminates.

Therefore, using method as shown in Figure 9, in conjunction with the light sensor of mobile phone upper end, it is determined whether execute fingerprint and know It not, can be to avoid the erroneous judgement under following scene, if mobile phone is placed in pocket or mobile phone is held in user hand by user, at this time User is that the fingerprint detection of mobile phone is not intended to be triggered.

Figure 10 shows another schematic flow chart of the method 400 for fingerprint recognition of the embodiment of the present application.Such as figure Shown in 10, this method 400 can be executed by terminal device as shown in Figure 8 A and 8 B, and this method 400 includes the following steps.

S401 starts.The touch screen of terminal device has fingerprint identification region, includes multiple sons in the fingerprint identification region Region.The distribution of multiple subregion is similar with method 100, and details are not described herein.

For ease of description, it is illustrated by taking distribution as shown in Figure 8 B as an example here.

S402, fingerprint detection region detection touch operation.The touch operation may be mistaken touch, it is also possible to for effectively touching It touches.

S403, determines the touch data of each subregion, and records the sequence that each subregion is pressed.

The time sequencing of each subregion acquisition touch data is the sequence that each subregion is pressed.

S404, judges whether each subregion has finger down.It specifically, can be according in the above method 100 S120 determines whether each subregion has effective touch data, if so, then illustrating that the subregion has finger down, if not having Have, then without finger down.

When determining has finger down in 5 sub-regions as shown in Figure 8 B, S405 is continued to execute；If not there is hand entirely Finger is pressed, it is determined that current touch operation is mistaken touch, continues to test touch operation next time, and continue to execute S403.

S405 determines the glide direction of finger according to the sequence being pressed.For example, determining that finger slides from left to right.

S305 starts to execute application program defined in glide direction.Each glide direction corresponds to an application program, It after determining that finger slides from left to right, that is, executes and slides corresponding application program from left to right, for example, checking phone directory.

Optionally, before running the application program, fingerprint recognition can also be executed according to the touch operation, known in fingerprint Not Cheng Gong after, run corresponding application program.

S306 terminates.

In this way, identifying the form of touch by different subregions, the navigation function of the terminal devices such as mobile phone can be expanded out Can, it is corresponding to execute different application programs.

It should be understood that the terminal device 200 in the embodiment of the present application can also include processing unit, optionally, the processing list Member can be located in fingerprint recognition mould group 220, which can be used for executing each in the above method 100,300 and 400 A step.Specifically, which can be used for: according to the touch operation, determine whether multiple subregion has touch Whether data have touch data according to multiple subregion, determine whether the touch operation is effective, if the touch operation has Effect executes fingerprint recognition to the touch operation by the fingerprint recognition mould group.

Optionally, as one embodiment, which is used for: if with the son of touch data in multiple subregion The number in region is more than or equal to preset value, determines that the touch operation is effective.

Optionally, as one embodiment, which is used for: if with the son of touch data in multiple subregion The number in region is more than or equal to preset value, and the light sensor is not blocked, determines that the touch operation is effective.

Optionally, as one embodiment, which is used for: if each subregion all has in multiple subregion Touch data determines that the touch operation is effective.

Optionally, as one embodiment, which is used for: if each subregion all has in multiple subregion Touch data, and the light sensor is not blocked, determines that the touch operation is effective.

Optionally, as one embodiment, which is also used to: recording the corresponding each sub-district of the touch operation The Target Acquisition sequence of the touch data in domain, the different corresponding different application programs of acquisition sequence；If the touch operation is effective, After executing fingerprint recognition success to the touch operation by the fingerprint recognition mould group, operation mesh corresponding with Target Acquisition sequence Mark application program.

Optionally, as one embodiment, which is used for: according to preset rules, on the fingerprint detection region Determine multiple subregion.

Optionally, as one embodiment, the preset rules include: in multiple subregion any two subregion do not weigh It is folded.

Optionally, as one embodiment, which includes: multiple subregion with the water in the fingerprint detection region Flat center line and/or vertical center line are axis, symmetrical.

Optionally, as one embodiment, which includes: the area phase of each subregion in multiple subregion Deng.

Therefore, multiple subregions are arranged in its fingerprint detection region, according to multiple in the terminal device in the embodiment of the present application Subregion is non-with effective touch data, whether effective determines touch operation, and fingerprint is executed when touch operation is effective Identification, during so that touch screen triggers unlocked by fingerprint under screen lock state or black state, False Rate is lower, and identification is more Rapidly, there is stronger anti-interference ability to environment light, improve the speed and efficiency of fingerprint recognition.

In existing conventional fingerprint identification device, only identify the fingerprint pattern of object to be detected, then with remembered in system The fingerprint pattern of record is compared.If judging, fingerprint pattern is consistent, determines that the fingerprint pattern of object to be detected is verified.So And occur the technology of special imitation fingerprint film currently on the market, it, can be similar by replicating the fingerprint pattern of object to be detected Fingerprint is replicated on the materials such as silica gel.Because the fingerprint of duplication is identical as the fingerprint pattern of object to be detected, the fingerprint of the duplication is used Similarly can be by the verifying of conventional fingerprint identification device, this brings great hidden danger to the safety of fingerprint recognition application.

Therefore, the embodiment of the present application proposes a kind of method for fingerprint recognition, will carry out the light of heart rate detection It learns diode (Photo Diode, PD) to be integrated in optical finger print identification mould group, so that optical finger print identification mould group can either Heart rate is detected, and can detecte light intensity, and other judgements are carried out based on light intensity.

Figure 11 shows the schematic flow chart of the method 500 for fingerprint recognition according to the embodiment of the present application.The party Method 500 can be executed by terminal device, which can be that terminal device 600 as shown in figure 12 as shown in figure 12 should Terminal device 600 includes touch screen 610 and optical finger print identifies mould group 620, and touch screen 610 is used including fingerprint detection region 611 It is touched in finger to carry out fingerprint detection, optical finger print knowledge is correspondingly arranged below the position in the fingerprint detection region 611 Other mould group 600.Optionally, which further includes fingerprint recognition light source 630, and the fingerprint recognition light source 630 is for shining To irradiate the object of touch fingerprint detection zone 611, which reflects to form return light by the object, and return light is examined by fingerprint Optical finger print identification mould group 620 is transmitted to after surveying region 611, wherein the fingerprint recognition light source 630 can be set in terminal device 600 any position, such as shown in Figure 12, which can be the light source being separately provided, positioned at the mobile phone Lower section bezel locations, but the embodiment of the present application is not limited to this.

Optionally, which can correspond to above-mentioned terminal device 10000, that is, this method can be by end End equipment 10000 executes, or can also be other terminal devices；Similar, the optical finger print of the terminal device 600 identifies mould Group 620, such as can be above-mentioned fingerprint recognition mould group 4000；Touch screen 610 can be liquid crystal display, such as corresponding to above-mentioned glass Cover board 1000 and/or liquid crystal display panel 2000, or may be other planes, such as OLED screen is corresponding, if the touch screen 610 be liquid crystal display, which can be above-mentioned fingerprint recognition light source 5000；If the touch screen 610 is The self luminous display screen such as OLED screen, then the fingerprint recognition light source 630 can be self-luminous screen, or may be other use In the light source for carrying out fingerprint detection；Fingerprint identification region 611 can correspond to above-mentioned fingerprint identification region 2100, but the application is real Example is applied to be not limited to this.

It should be understood that the optical finger print in the embodiment of the present application identifies that in mould group 620 further include optical detection unit, the optics Detection unit can be used for measuring the light intensity of the optical finger print identification received return light of mould group 620, for example, the optical detection list Member can be photodiode (Photo Diode), which receives return light, according to the strong of different return lights Degree, it is corresponding to export different electric signals, the light intensity of return light, further, the Photo can be determined according to its data exported Diode can be also used for the biological characteristics such as detection heart rate, so that it is determined that whether the object of touch operation is living body finger print.

As shown in figure 11, this method 500 includes: S510, is determined by the optical detection unit and passes through the fingerprint detection area The light intensity of the return light in domain, the return light are the object that the fingerprint recognition light source is radiated at that the fingerprint detection region executes touch operation The light of body back reflection；S520 determines whether the touch operation is effective according to the light intensity of the return light；S530, if the touch operation Effectively, fingerprint recognition is executed to the touch operation by the fingerprint recognition mould group.

It should be understood that the touch operation in the fingerprint detection region 611 may be the touch operation of the finger of user, such as with The invalid touch operation of effective touch operation or user unintentionally when family needs to unlock mobile phone；Alternatively, the fingerprint detection area Touch operation in domain 611 may also be invalid touch operation caused by the mistaken touch of other objects, terminal device it needs to be determined that Whether the touch operation is effective.

Specifically, when there is object touch fingerprint detection zone 611 to generate touch operation, fingerprint detection light source 630 shines And the object is irradiated, which generates return light by object reflection, which is sent to optics by fingerprint detection region 611 Fingerprint recognition mould group 620, Figure 13 show the schematic block diagram of optical finger print identification mould group 620 in the embodiment of the present application, such as scheme Shown in 13, which identifies to include optical detection unit 621 in mould group 620, therefore, in S510, the light of terminal device It learns fingerprint recognition mould group 620 and receives return light, by 621 output data of optical detection unit, can be determined according to the data The light intensity of the return light.

Optionally, the light intensity that the return light is determined by the data that the optical detection unit 621 exports, may include: true The average value of the light intensity of the fixed return light, alternatively, the Time Change of the light intensity of the return light can also be determined.It is corresponding, Since optical detection unit 621 can be used for measuring the variation of the light intensity of return light, further, the optical detection unit 621 It can be specially In vivo detection unit, for example, the optical detection unit 621 can be also used for the biological characteristics such as detection heart rate, from And determine and execute whether the object of touch operation is living body, for example, being the Fingerprint Model of live finger or vacation.

As shown in figure 13, it can also include adjustment circuit 622 in optical finger print identification mould group 620, pass through adjustment electricity Road 622 can dynamically adjust the range of the optical detection unit 621.For example, the optical detection unit can be Photo Diode adjusts the range of Photo Diode, according to the size of the light intensity of current return light to adapt to the light of current return light By force, increase the accuracy of measurement.

Furthermore, it is contemplated that interference of the strong light to fingerprint detection in environment, such as user is under the outdoor sun, light It is relatively strong, it will affect the detection of optical sensor in optical finger print identification mould group.In order to solve this problem, in terminal device 600 also It may include processing unit, the luminous frequency of fingerprint recognition light source 630 controlled by the control unit, thus strong in shielding environment The influence of light.

Specifically, the processing unit in the terminal device 600 can be particularly located in optical finger print identification mould group 620.Such as Shown in Figure 13, which identifies that mould group 620 may include modulation circuit 623, i.e., the control unit may include modulation electricity Road 623 controls fingerprint recognition light source 630 by modulation circuit 623 and shines according to preset modulating frequency, is i.e. fingerprint recognition light Source 630 can issue optical signal according to preset modulating frequency, opened or closed for example, by using some specific modulating frequency The operation closed, after finger reflects, fingerprint recognition mould group 620 receives the return light after finger reflects, and the return light is still So there is the preset modulating frequency, in order to obtain final effective fingerprint signal, optical finger print identifies being somebody's turn to do in mould group 620 Processing unit can also include demodulator circuit 623, which carries out demodulation process for received optical signal, pass through light The light intensity of return light after learning the measurement demodulation of detection unit 621, alternatively, being determined after light intensity by optical detection unit 621 to returning Light echo carries out demodulation process, and generates fingerprint image according to the optical signal after reduction, in order to which terminal device 600 is according to the fingerprint Image carries out fingerprint recognition.Since the light overwhelming majority in environment can be considered that frequency is constant or the slowly light letter of frequency Number, using the method for modulation, it can be very good the influence of strong light in shielding environment.

Optionally, which can also include that other circuits are used for example, it is also possible to include amplifying circuit In amplifying processing to optical signal or electric signal；It can also include filter circuit, for being carried out to optical signal or electric signal Filter；It can also include analog to digital conversion circuit, for converting analog signals into electric signal, or can also include other purposes Circuit, the embodiment of the present application are not limited to this.

In S520, according to the light intensity of the return light determined by optical detection unit 621, the touch operation can be determined Whether effectively, wherein the light for the return light that the terminal device can be determined according only to the data exported by optical detection unit 621 By force, determine whether the touch operation is effective；Alternatively, terminal device can also combine other conditions and pass through optical detection unit The light intensity of 621 return lights determined, determines whether the touch operation is effective jointly.

Optionally, as one embodiment, which can be according only to the number exported by optical detection unit 621 According to the light intensity of determining return light, determine whether the touch operation is effective.

For example, terminal device can determine the touch operation if the light intensity of the return light is more than or equal to default light intensity Effectively；If being less than, it is determined that touch operation is invalid.Only determine whether touch operation is effective by light intensity magnitude in this way, without The operation such as heart rate detection is further executed, so that recognition speed is faster.

For another example can also determine whether the object is living body according to the light intensity of the return light；If the object is living body, It determines that the touch operation is effective, otherwise determines that touch operation is invalid.Since optical detection unit can be set to examine for heart rate The Photo Diode of survey, it is possible to determine and execute whether the object of touch operation is living body, if living body, it is determined that the touching Touch operation effectively, this method can to avoid the touch operation of non-living body finger, but for the judgement of the mistaken touch of user standard True rate is lower.

For another example above-mentioned deterministic process can also be combined, if the light intensity of the return light is more than or equal to default light By force, according to the light intensity of the return light, determine whether the object is living body；If the object is living body, determine that the touch operation is effective, Otherwise determine that touch operation is invalid.Above two deterministic process is combined, the accuracy rate of detection is further increased, reduces and misses Touch the probability of the fingerprint recognition caused.

Optionally, as one embodiment, terminal device can also combine other conditions and pass through optical detection unit 621 The light intensity of determining return light determines whether the touch operation is effective jointly.Specifically, as shown in figure 12, the terminal device 600 It can also include light sensor 640, which is located at the surface of terminal device 600, for detecting light.Example Such as, as shown in figure 12, the light sensor 640 on mobile phone is generally arranged at the top of mobile phone, can be used for detecting position at this Whether there is object to block.Terminal device 600 can be in conjunction with the survey of the light intensity of the testing result and return light of the light sensor 640 Amount as a result, determine whether touch operation is effective, and then exclude the mistaken touch under individual scenes, for example, user puts mobile phone jointly In pocket or mobile phone is held in user hand, and user is to be not intended to the fingerprint detection of mobile phone to be triggered, that is, need at this time Exclude mistaken touch.

For example, if the light intensity of the return light is more than or equal to default light intensity, and the light sensor is not blocked, determines The touch operation is effective, otherwise determines that touch operation is invalid.

For another example determining whether the object is living body according to the light intensity of the return light；If the object is living body, and the light Line sensor is not blocked, determines that the touch operation is effective, otherwise determines that touch operation is invalid.

For another example if the light intensity of the return light is more than or equal to default light intensity, and the light sensor is not blocked, root According to the light intensity of the return light, determine whether the object is living body；If the object is living body, determine that the touch operation is effective, otherwise Determine that touch operation is invalid.

In S530, if the touch operation is effective, terminal device executes the touch operation by the fingerprint recognition mould group Fingerprint recognition.If the touch operation is invalid, terminal device does not execute fingerprint recognition.

Figure 14 shows another schematic flow chart of the method 700 for fingerprint recognition of the embodiment of the present application.Such as figure Shown in 14, this method 700 can be executed by terminal device as shown in Figure 12 and Figure 13, such as the terminal device can be hand Machine, this method 700 include the following steps.

S701 starts.The touch screen of terminal device has fingerprint identification region, which identifies with optical finger print Mould group, which identifies that mould group includes optical detection unit, here by taking the optical detection unit is Photo Diode as an example It is illustrated, which can also carry out heart rate detection with voice measuring light intensity, further.Specifically Ground, the terminal can be the terminal device 600 of execution method 500, and details are not described herein.

S702, initialized optical fingerprint recognition mould group.Specifically, optical finger print identification mould group includes Photo Diode And the fingerprint image inductor for obtaining fingerprint image, initializing optical finger print identification mould group includes: initialization Photo Diode and initialization fingerprint image inductor.

S703 detects Photo Diode data.

Specifically, when there is touch operation in the fingerprint detection region of terminal device, the irradiation of fingerprint recognition light source executes the touch The object of operation generates return light, which is received behind fingerprint detection region by optical finger print identification mould group, the optics Photo Diode in fingerprint recognition mould group exports different electric signals according to the intensity of the return light, detects Photo Diode The data of output.

Whether S704 judges light intensity in the dynamic range of Photo Diode.According to acquisition Photo Diode in S703 The data at place determine current light intensity whether in the dynamic range of Photo Diode, if continuing to execute S706；If not existing, Then continue to execute S705.

S705 adjusts Photo Diode dynamic range, to adapt to current light intensity, promotes the accuracy of Photo Diode, And continue to execute S703.

S706, judges whether finger is pressed.According to the data exported at Photo Diode, determine that optical finger print identifies mould The light intensity for the return light that group receives.If the light intensity of the return light is more than or equal to preset value, then it is assumed that current touch behaviour It is executed as finger, that is, there is finger pressing, continue to execute S707；If the light intensity of the return light is less than preset value, then it is assumed that when Preceding touch operation is mistaken touch, i.e., there is no fingers to press, and continues to execute S703.

S707, judges whether mobile phone light sensor is blocked.

If light sensor is not blocked, it is determined that current touch operation be it is effective, then continue to execute S708；If Light sensor is blocked, it is determined that current touch operation is mistaken touch, continues to test touch operation next time, and continue Execute S703.

S708 starts to execute fingerprint detection operation.Current touch operation effectively, according to the touch operation obtains fingerprint image Picture carries out fingerprint recognition according to the fingerprint image.

S709 terminates.

Therefore, using method as shown in fig. 13 that, by the light of the data combination mobile phone upper end exported at Photo Diode Line sensor, it is determined whether execute fingerprint recognition, without executing heart rate detection, while accelerating recognition speed, can also reduce False Rate.

Figure 15 shows another schematic flow chart of the method 800 for fingerprint recognition of the embodiment of the present application.Such as figure Shown in 15, this method 800 can be executed by terminal device as shown in Figure 12 and Figure 13, such as the terminal device can be hand Machine, this method 800 include the following steps.

S801 starts.The touch screen of terminal device has fingerprint identification region, which identifies with optical finger print Mould group, which identifies that mould group includes optical detection unit, here by taking the optical detection unit is Photo Diode as an example It is illustrated, which can also carry out heart rate detection with voice measuring light intensity, further.Specifically Ground, the terminal can be the terminal device 600 of execution method 500, and details are not described herein.

S802, initialized optical fingerprint recognition mould group.Specifically, optical finger print identification mould group includes Photo Diode And the fingerprint image inductor for obtaining fingerprint image, initializing optical finger print identification mould group includes: initialization Photo Diode and initialization fingerprint image inductor.

S803 detects Photo Diode data.

Whether S804 judges light intensity in the dynamic range of Photo Diode.According to acquisition Photo Diode in S803 The data at place determine current light intensity whether in the dynamic range of Photo Diode, if continuing to execute S806；If not existing, Then continue to execute S805.

S805 adjusts Photo Diode dynamic range, to adapt to current light intensity, promotes the accuracy of Photo Diode, And S803 is continued to execute, waiting touches next time.

S806, judges whether finger is pressed.According to the data exported at Photo Diode, determine that optical finger print identifies mould The light intensity for the return light that group receives.If the light intensity of the return light is more than or equal to preset value, then it is assumed that current touch behaviour It is executed as finger, that is, there is finger pressing, continue to execute S808；If the light intensity of the return light is less than preset value, then it is assumed that when Preceding touch operation is mistaken touch, i.e., there is no fingers to press, and continues to execute S803, and waiting touches next time.

S807, judges whether mobile phone light sensor is blocked.

If light sensor is not blocked, it is determined that current touch operation be it is effective, then continue to execute S808；If Light sensor is blocked, it is determined that current touch operation is mistaken touch, continues to test touch operation next time, and continue S803 is executed, waiting touches next time.

S808 detects heart rate by Photo Diode, and according to the data that the Photo Diode is exported, determination executes touch The object of operation or the heart rate of user.

S809 judges whether it is living body, according to the heart rate data of detection determine current touch operation execution object whether It is the finger of living person, if then continuing to execute S810, if it is not, then continuing to execute S803, waiting touches next time.

S810 exports heart rate data, starts to execute fingerprint detection operation.Current touch is determined according to the heart rate data of measurement Operation effectively, exports the heart rate value and is shown to user, meanwhile, terminal device can also obtain fingerprint image according to the touch operation Picture carries out fingerprint recognition according to the fingerprint image.

S811 terminates.

It should be understood that the terminal device 600 in the embodiment of the present application can also include processing unit, optionally, the processing list Member can be located in fingerprint recognition mould group 620, which can be used for executing each in the above method 500,700 and 800 A step.Specifically, which can be used for: determine returning by the fingerprint detection region by the optical detection unit The light intensity of light echo, the return light are that the fingerprint recognition light source is radiated at after the object of fingerprint detection region execution touch operation instead The light penetrated；According to the light intensity of the return light, determine whether the touch operation is effective；If the touch operation is effective, pass through the optics Fingerprint recognition mould group executes fingerprint recognition to the touch operation.

Optionally, as one embodiment, which is also used to: if the light intensity of the return light is more than or equal in advance If light intensity, determine that the touch operation is effective.

Optionally, as one embodiment, which further includes light sensor, which is also used to: if The light intensity of the return light is more than or equal to default light intensity, and the light sensor is not blocked, determines that the touch operation is effective.

Optionally, as one embodiment, which is also used to: according to the light intensity of the return light, determining the object It whether is living body；If the object is living body, determine that the touch operation is effective.

Optionally, as one embodiment, which further includes light sensor, which is also used to: root According to the light intensity of the return light, determine whether the object is living body；If the object is living body, and the light sensor is not blocked, Determine that the touch operation is effective.

Optionally, as one embodiment, which is also used to: if the light intensity of the return light is more than or equal in advance If light intensity, according to the light intensity of the return light, determine whether the object is living body；If the object is living body, the touch operation is determined Effectively.

Optionally, as one embodiment, which further includes light sensor, which is also used to: if The light intensity of the return light is more than or equal to default light intensity, and the light sensor is not blocked, according to the light intensity of the return light, Determine whether the object is living body；If the object is living body, determine that the touch operation is effective.

Optionally, as one embodiment, which is photodiode.

Optionally, as one embodiment, which is also used to: according to the light intensity of the return light, adjusting the photoelectricity The measurement range of diode.

Optionally, as one embodiment, which is also used to: controlling the fingerprint recognition light source according to modulating frequency It shines, and demodulation process is carried out to the return light；The light intensity of the return light after demodulation is determined by the optical detection unit.

Optionally, as one embodiment, which identifies that mould group includes the processing unit.

Therefore, the terminal device of the embodiment of the present application will carry out the Photo Diode and fingerprint image of In vivo detection Inductor is integrated in the optical finger print identification mould group of the terminal device, allows optical finger print identification mould group according to detection To light intensity determine whether finger press, i.e., realization screen lock state judge finger pressing, in addition can also be by this Photo Diode detects whether to realize living body finger print identification function for living body finger print, thus by fingerprint, blood flow and Heart rate signal verifies the true identity of user, allows false fingerprint to have no place to hide, escorts for mobile payment security, greatly mentions The safety of fingerprint detection is risen.

The embodiment of the present application also provides a kind of fingerprint identification device, fingerprint identification device can be in terminal device, example It such as can be set in above-mentioned terminal device 10000, which includes the liquid crystal with liquid crystal display panel and backlight module Display screen, the fingerprint identification device include light source and fingerprint recognition mould group；Wherein, light source, for providing optical signal irradiation finger To generate return light, which is used for the fingerprint detection transmission region across the liquid crystal display panel and the backlight module and is transmitted to The fingerprint recognition mould group；The fingerprint recognition mould group, for being arranged below the fingerprint detection transmission region, passing through for reception should The return light of fingerprint detection transmission region, and fingerprint image is obtained according to the return light, which knows for the fingerprint Other device carries out the fingerprint recognition.

It should be understood that the light source in fingerprint identification device in the embodiment of the present application can correspond to above-mentioned terminal device Fingerprint recognition light source 5000 in 10000, the fingerprint recognition mould group in fingerprint identification device can correspond to above-mentioned terminal device Fingerprint recognition mould group 4000 in 10000, and the fingerprint identification method of the execution of fingerprint recognition mould group 4000, example can also be executed Such as fingerprint identification device can execute the above method 100 to method 800, in order to which succinctly details are not described herein.

Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually It is implemented in hardware or software, the specific application and design constraint depending on technical solution.Professional technician Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed Scope of the present application.

It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description, The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.

In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components It can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown or The mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, the indirect coupling of device or unit It closes or communicates to connect, can be electrical property, mechanical or other forms.

The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme 's.

It, can also be in addition, each functional unit in each embodiment of the application can integrate in one processing unit It is that each unit physically exists alone, can also be integrated in one unit with two or more units.

It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product It is stored in a computer readable storage medium.Based on this understanding, the technical solution of the application is substantially in other words The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a People's computer, server or network equipment etc.) execute each embodiment the method for the application all or part of the steps. And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited The various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic or disk.

The above, the only specific embodiment of the application, but the protection scope of the application is not limited thereto, it is any Those familiar with the art within the technical scope of the present application, can easily think of the change or the replacement, and should all contain Lid is within the scope of protection of this application.Therefore, the protection scope of the application should be based on the protection scope of the described claims.

Claims

1. a kind of terminal device with fingerprint identification function characterized by comprising

Glass cover-plate (1000) provides touch interface when for carrying out fingerprint recognition for finger；

Liquid crystal display panel (2000) is located at below the glass cover-plate (1000), for showing image；

Fingerprint recognition light source (5000), be located at the glass cover-plate (1000) lower section, for shine and irradiate the finger with Generate return light；

Backlight module (3000) is located at below the liquid crystal display panel (2000), for showing figure for the liquid crystal display panel (2000) As providing light source, including the first light guide plate (3200) and non-light conducting plate structure (3100), non-light conducting plate structure (3100) packet It includes fingerprint detection transmission region (3101), the fingerprint detection transmission region (3101) is used for transmission the return light；

Fingerprint recognition mould group (4000) is located at below the fingerprint detection transmission region (3101), passes through the finger for receiving Line detects the return light of transmission region (3101), and obtains fingerprint image according to the return light, and the fingerprint image is used The fingerprint recognition is carried out in the terminal device.

2. terminal device according to claim 1, which is characterized in that the fingerprint detection transmission region (3101) is described Through-hole on non-light conducting plate structure (3100).

3. terminal device according to claim 1, which is characterized in that the fingerprint detection transmission region (3101) is in institute State the region that optical ink is filled on non-light conducting plate structure (3100).

4. terminal device according to claim 1, which is characterized in that the size of the fingerprint detection transmission region (3101) It is related to the field angle FOV of the fingerprint recognition mould group (4000).

5. terminal device according to claim 1, which is characterized in that the non-light conducting plate structure includes following at least one Layer: composite membrane (3110), bright enhancement film (3120), diffusion barrier (3130), the first reflectance coating (3140) and steel plate (3150).

6. terminal device according to claim 5, which is characterized in that the composite membrane (3110), the bright enhancement film (3120) and the diffusion barrier (3130) is located above first light guide plate (3200), first reflectance coating (3140) and The steel plate (3150) is located at below first light guide plate (3200).

7. terminal device according to any one of claim 1 to 6, which is characterized in that the terminal device further include:

Light compensating apparatus (6000) is located at the lower section of the fingerprint detection transmission region (3101) and is located at the fingerprint recognition mould group (4000) top, for carrying out backlight compensation to the fingerprint detection transmission region (3101).

8. terminal device according to claim 7, which is characterized in that the light compensating apparatus (6000) includes backlight (6100) and the second light guide plate (6200),

The backlight (6100) is located at around second light guide plate (6200), and second light guide plate (6200) is for conducting The light that the backlight (6100) issues.

9. terminal device according to claim 8, which is characterized in that the light compensating apparatus (6000) further include:

Second reflectance coating (6300) is located at below the backlight (6100) and second light guide plate (6200), is used for institute It states fingerprint detection transmission region (3101) and reflects the light and second light guide plate (6200) biography that the backlight (6100) issues The light led；

Second reflectance coating (6300) has through-hole (6310), and the through-hole (6310) is used for the fingerprint recognition mould group (4000) return light described in transparent transmission.

10. terminal device according to claim 7, which is characterized in that the light compensating apparatus (6000) and the fingerprint are known Optical filter (7000) are provided between other mould group (4000),

The optical filter (7000) be used for filter out to the fingerprint recognition mould group (4000) transmit, in addition to the return light Light.

11. terminal device according to any one of claims 1 to 6, which is characterized in that the fingerprint recognition light source (5000) It is not blocked mutually with the liquid crystal display panel (2000).

12. terminal device according to claim 11, which is characterized in that the fingerprint recognition light source (5000) passes through optics Glue (5001) is fixed below the glass cover-plate (1000).

13. terminal device according to claim 11, which is characterized in that shining for the fingerprint recognition light source (5000) is flat Angle between face and the surface of the glass cover-plate (1000) is not zero.

14. terminal device according to claim 11, which is characterized in that the light that the fingerprint recognition light source (5000) issues For infrared light.

15. terminal device according to any one of claim 1 to 6, which is characterized in that liquid crystal display panel (2000) packet It includes: fingerprint detection region (2100),

The fingerprint detection region (2100) is used for: the finger is touched to carry out the fingerprint recognition, fingerprint recognition light source (5000) return light that the light issued irradiates that the finger generates is transmitted to described through the fingerprint induction region (121) Fingerprint recognition mould group (4000).

16. terminal device according to claim 15, which is characterized in that the fingerprint detection region (2100) and the liquid Virtual key overlapping in crystal panel (2000).

17. terminal device according to any one of claims 1 to 6, which is characterized in that the fingerprint recognition mould group (4000) Further include processing unit (4100), the processing unit (4100) is used for:

It controls the fingerprint recognition light source (5000) to shine according to modulating frequency, and demodulation process is carried out to the return light；

According to the return light after demodulation, the fingerprint image of the finger is obtained.

18. terminal device according to claim 15, which is characterized in that the fingerprint detection region (2100) includes multiple Subregion, the fingerprint recognition mould group (4000) further include processing unit (4100), and the processing unit (4100) is used for:

According to the touch operation in the fingerprint detection region (2100), determine whether the multiple subregion has touch number According to；

Whether there is touch data according to the multiple subregion, determines whether the touch operation is effective；

If the touch operation is effective, fingerprint recognition is executed to the touch operation by the fingerprint recognition mould group (4000).

19. terminal device according to claim 18, which is characterized in that the processing unit (4100) is also used to:

If the number of the subregion in the multiple subregion with touch data is more than or equal to preset value, the touching is determined It is effective to touch operation.

20. terminal device according to claim 18, which is characterized in that the terminal device further includes light sensor (1900), the processing unit (4100) is also used to:

If the number of the subregion in the multiple subregion with touch data is more than or equal to preset value, and the light Sensor is not blocked, determines that the touch operation is effective.

21. terminal device according to claim 18, which is characterized in that the processing unit (4100) is also used to:

If each subregion all has touch data in the multiple subregion, determine that the touch operation is effective.

22. terminal device according to claim 18, which is characterized in that the terminal device further includes light sensor (1900), the processing unit (4100) is also used to:

If each subregion all has touch data in the multiple subregion, and the light sensor is not blocked, determines The touch operation is effective.

23. terminal device according to claim 22, which is characterized in that the processing unit (4100) is also used to:

According to the position of each subregion and each time for obtaining touch data together, the touch operation is determined Form, different forms corresponds to different application programs；

If the touch operation is effective, fingerprint recognition is being executed to the touch operation by the fingerprint recognition mould group (4000) After success, application program corresponding with the form of the touch operation is run.

24. terminal device according to claim 18, which is characterized in that the multiple subregion is distributed according to preset rules On the fingerprint detection region (2100).

25. terminal device according to claim 24, which is characterized in that the preset rules include:

Any two subregion is not overlapped in the multiple subregion.

26. terminal device according to claim 25, which is characterized in that the preset rules include:

The multiple subregion using the horizontal center line of the fingerprint detection region (2100) and/or vertical center line as axis, It is symmetrical.

27. terminal device according to claim 24, which is characterized in that the preset rules include:

The area equation of each subregion in the multiple subregion.

28. terminal device according to claim 15, which is characterized in that the fingerprint recognition mould group (4000) further includes place Reason unit (4100) and optical detection unit, the processing unit (4100) are used for:

The light intensity of the return light by the fingerprint detection region (2100), the return are determined by the optical detection unit Light is that the fingerprint recognition light source (5000) is radiated at after the object of fingerprint detection region (2100) the execution touch operation instead The light penetrated；

According to the light intensity of the return light, determine whether the touch operation is effective；

29. terminal device according to claim 28, which is characterized in that the processing unit (4100) is also used to:

If the light intensity of the return light is more than or equal to default light intensity, determine that the touch operation is effective.

30. terminal device according to claim 28, which is characterized in that the terminal device further includes light sensor (1900),

The processing unit (4100) is also used to:

If the light intensity of the return light is more than or equal to default light intensity, and the light sensor is not blocked, described in determination Touch operation is effective.

31. terminal device according to claim 28, which is characterized in that the processing unit (4100) is also used to:

According to the light intensity of the return light, determine whether the object is living body；

If the object is living body, determine that the touch operation is effective.

32. terminal device according to claim 28, which is characterized in that the terminal device further includes light sensor (1900),

The processing unit (4100) is also used to:

If the object is living body, and the light sensor is not blocked, determines that the touch operation is effective.

33. terminal device according to claim 28, which is characterized in that the processing unit (4100) is also used to:

If the light intensity of the return light, which is more than or equal to default light intensity, determines the object according to the light intensity of the return light It whether is living body；

If the object is living body, determine that the touch operation is effective.

34. terminal device according to claim 28, which is characterized in that the terminal device further includes light sensor (1900),

The processing unit (4100) is also used to:

If the light intensity of the return light is more than or equal to default light intensity, and the light sensor is not blocked, according to described The light intensity of return light determines whether the object is living body；

If the object is living body, determine that the touch operation is effective.

35. terminal device according to claim 28, which is characterized in that the optical detection unit is photodiode.

36. terminal device according to claim 35, which is characterized in that the processing unit (4100) is also used to:

According to the light intensity of the return light, the measurement range of the photodiode is adjusted.

37. terminal device according to claim 28, which is characterized in that the processing unit (4100) is also used to:

The light intensity of the return light after demodulation is determined by the optical detection unit.

38. a kind of fingerprint identification device, which is characterized in that applied to the liquid crystal display with liquid crystal display panel and backlight module, The fingerprint identification device includes light source and fingerprint recognition mould group；

Wherein, the light source, for providing optical signal irradiation finger to generate return light, the return light is used for across the liquid The fingerprint detection transmission region of crystal panel and the backlight module is simultaneously transmitted to the fingerprint recognition mould group；

The fingerprint recognition mould group passes through the fingerprint for receiving for being arranged below the fingerprint detection transmission region The return light of transmission region is detected, and fingerprint image is obtained according to the return light, the fingerprint image is used for the finger Line identification device carries out the fingerprint recognition.

39. the fingerprint identification device according to claim 38, which is characterized in that the fingerprint recognition mould group further includes processing Unit, the processing unit are used for:

It controls the light source to shine according to modulating frequency, and demodulation process is carried out to the return light；

40. the fingerprint identification device according to claim 38 or 39, which is characterized in that the light source and the liquid crystal display panel It does not block mutually.

41. fingerprint identification device according to claim 40, which is characterized in that the light source is fixed on institute by optical cement It states below glass cover-plate.

42. the fingerprint identification device according to claim 38 or 39, which is characterized in that the luminous flat of the light source and institute The angle stated between the surface of glass cover-plate (1000) is not zero.

43. the fingerprint identification device according to claim 38 or 39, which is characterized in that the light that the light source issues is infrared Light.

44. the fingerprint identification device according to claim 38 or 39, which is characterized in that the display area of the liquid crystal display panel It include: fingerprint detection region,

The fingerprint detection region is used for: the finger is touched to carry out the fingerprint recognition, the light irradiation that the light source issues The return light that the finger generates is transmitted to the fingerprint recognition mould group through the fingerprint induction region.

45. fingerprint identification device according to claim 44, which is characterized in that the fingerprint detection region and the liquid crystal Virtual key overlapping in the display area of panel.

46. fingerprint identification device according to claim 44, which is characterized in that the fingerprint detection region includes multiple sons Region, the fingerprint recognition mould group further includes processing unit, and the processing unit is used for:

According to the touch operation in the fingerprint detection region, determine whether the multiple subregion has touch data；

If the touch operation is effective, fingerprint recognition is executed to the touch operation by the fingerprint recognition mould group.

47. fingerprint identification device according to claim 46, which is characterized in that the processing unit is also used to:

48. fingerprint identification device according to claim 46, which is characterized in that the fingerprint identification device further includes light Sensor, the processing unit are also used to:

49. fingerprint identification device according to claim 46, which is characterized in that the processing unit is also used to:

50. fingerprint identification device according to claim 46, which is characterized in that the fingerprint identification device further includes light Sensor, the processing unit are also used to:

51. fingerprint identification device according to claim 50, which is characterized in that the processing unit is also used to:

If the touch operation is effective, fingerprint recognition success is being executed to the touch operation by the fingerprint recognition mould group Afterwards, application program corresponding with the form of the touch operation is run.

52. fingerprint identification device according to claim 46, which is characterized in that any two in the multiple subregion Region is not overlapped, and the multiple subregion area equation；

The multiple subregion is using the horizontal center line in the fingerprint detection region and/or vertical center line as axis, and symmetrical point Cloth.

53. fingerprint identification device according to claim 44, which is characterized in that the fingerprint recognition mould group further includes processing Unit and optical detection unit, the processing unit are used for:

The light intensity of the return light by the fingerprint detection region is determined by the optical detection unit, the return light is institute It states light source and is radiated at the light that the fingerprint detection region executes the object back reflection of touch operation；

54. fingerprint identification device according to claim 53, which is characterized in that the fingerprint identification device further includes light Sensor, the processing unit are also used to:

55. fingerprint identification device according to claim 53, which is characterized in that the processing unit is also used to:

If the object is living body, determine that the touch operation is effective.

56. fingerprint identification device according to claim 53, which is characterized in that the fingerprint identification device further includes light Sensor, the processing unit are also used to:

If the object is living body, determine that the touch operation is effective.

57. fingerprint identification device according to claim 53, which is characterized in that the optical detection unit is two pole of photoelectricity Pipe.

58. fingerprint identification device according to claim 57, which is characterized in that the processing unit is also used to: