CN109478236A

CN109478236A - Light emitting device, biological characteristic detection device and electronic equipment

Info

Publication number: CN109478236A
Application number: CN201880002038.9A
Authority: CN
Inventors: 徐兴浪
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: 2019-03-15
Also published as: WO2020077498A1

Abstract

This application provides a kind of light emitting device, biological characteristic detection device and electronic equipments, it includes light source and light guide structure that the biological characteristic detection device, which includes: light emitting device, the light source is for providing biological characteristic detection optical signal, the guiding device, which is used to receive the biological characteristic from the light source by first end, detects optical signal, and the biological characteristic is detected by optical signal by second end and is projected, the size of the light source is greater than the size of the second end；Living things feature recognition mould group is used to detect the return light that target object of the biological characteristic detection optical signal above the display screen is formed, and the return light is for detecting biological information.The biological characteristic detection device is by guaranteeing that the size of the light source is greater than the size of the signal output end of the light guide structure, at least part of the light source can be mounted on to the lower section of display screen, and the optical signal that the light source issues is guided to the lower section of the frame of the display screen by the light guide structure, and then realize living things feature recognition under the screen of screen display comprehensively.

Description

Light emitting device, biological characteristic detection device and electronic equipment

Technical field

The invention relates to electronic technology fields, and more particularly, to light emitting device, biological characteristic detection dress It sets and electronic equipment.

Background technique

So far, system of fingerprints usually requires under the screen of liquid crystal display (liquid crystal display, LCD) One external light source is set.Since the backlight module of LCD has barriering effect to light, the external light source can only be put In the lower section of the non-display area of display screen.But under the background of comprehensive screen display, the non-display area is arranged more next It is narrower, and then result in the lower section of the non-display area and arrange the external light source without enough spaces.

Therefore, a kind of cloth that can adapt to LCD and shield the external light source of system of fingerprints under the screen of display comprehensively is badly in need of in this field Set scheme.

Summary of the invention

This application provides a kind of light emitting device, biological characteristic detection device and electronic equipments, and the light emitting device can Shield system of fingerprints under the screen of display comprehensively suitable for LCD.

In a first aspect, providing a kind of biological characteristic detection device, apply in the electronic equipment with display screen, the life Object feature detection device includes:

Light emitting device, including light source and light guide structure, the light source are described to lead for providing biological characteristic detection optical signal Electro-optical device includes first end and second end, and the guiding device is used to receive the biology from the light source by the first end Feature detects optical signal, and the biological characteristic is detected optical signal by the second end and is projected, wherein the ruler of the light source The very little size greater than the second end；

Living things feature recognition mould group, for the lower section of the display screen to be arranged in, to detect the second of the guiding device The biological characteristic detection optical signal that end-fire the goes out return light that square target object is formed on the display screen, the return light are used In the biological information for detecting the target object.

In some possible implementations, the light source is infrared light supply, and biological characteristic detection optical signal is Infrared signal.

In some possible implementations, the display screen is liquid crystal display comprising liquid crystal display die set and is The liquid crystal display die set provides the backlight module of backlight, and the living things feature recognition mould group is for being arranged in the backlight mould The lower section of group, and the biological characteristic detection zone of the living things feature recognition mould group is at least partially disposed at the display of the display screen Region.

In some possible implementations, the light emitting device is used to be disposed side by side on the electronics with the display screen Below the cover board of equipment, and the light emitting device and the display screen non-overlapping.

In some possible implementations, the first end at least covers the light-emitting surface of the light source.

In some possible implementations, the size of the first end is greater than or equal to the size of the second end.

In some possible implementations, the axial direction of the first end is axially formed preset angle with the second end Degree.

In some possible implementations, the predetermined angle is less than or equal to 90 °.

In some possible implementations, the light source is side light emitting source, the axial direction and first direction of the first end Formation first angle, the first direction and the second end are axially formed second angle, and the first direction is described leads The axial direction in the middle position of photo structure.

In some possible implementations, the light source includes multiple light sources, the first end include with it is the multiple The corresponding multiple openings of light source, the second end include an opening, and the biological characteristic detection optical signal is opened from the multiple Mouth is injected, and is projected from one opening.

In some possible implementations, the area of one opening is greater than or equal to preset area.

In some possible implementations, projection of the first end in the axial plane of the vertical first end For round or polygon, and/or, the second end being projected as in the axial plane of the vertical second end it is round or Person's polygon.

In some possible implementations, the structure of the first end is pyramidal structure.

In some possible implementations, the light guide structure is described at least one hatching of the first section First end is connected to the second end by the first camber line, and first section is the axial direction and the second end of the first end It is axial where section.

In some possible implementations, the corresponding center of circle of first camber line is located at the separate institute of first camber line State the side at the center of light guide structure.

In some possible implementations, the corresponding center of circle of first camber line is located at the close institute of first camber line State the side at the center of light guide structure.

In some possible implementations, first camber line is connected to the second end by the second camber line, described The corresponding center of circle of second camber line is located at the side at the center far from the light guide structure of second camber line.

In some possible implementations, first camber line is connected by straight line with second camber line.

In some possible implementations, second camber line is connected to the second end by least one line.

In some possible implementations, at least one connecting line includes first straight line and second straight line, described Angle between first straight line and second is greater than default angle.

In some possible implementations, the first straight line is connected to the second straight line, institute by third camber line State the side that the corresponding center of circle of third camber line is located at the center close to the light guide structure of the third camber line.

In some possible implementations, the biological characteristic detection device further include:

Lens, the lens are arranged between the light source and the first end, are used for transmission the biological characteristic detection Optical signal.

In some possible implementations, the lens be arranged in the first end or the lens with it is described There is prepsetting gap between first end.

In some possible implementations, the lens are concavees lens or the lens are convex lens.

In some possible implementations, the lens are packaged lens, the convex surfaces direction of the packaged lens The convex surfaces of the first end setting or the packaged lens are arranged towards the light source.

In some possible implementations, the light guide structure is fixedly connected with the light source.

In some possible implementations, the biological characteristic detection device be applied to electronic equipment, the light source and/ Or the light guide structure is fixedly installed in the center of the electronic equipment, and at least part of the light source is located at the display The lower section of the frame of the display screen is arranged in the lower section of the backlight module of screen, the second end of the light guide structure.

Second aspect provides a kind of light emitting device, comprising:

Infrared light supply, for issuing infrared signal；

Light guide structure, the light guide structure include first end and second end, and the light guide structure is used to pass through described first End receives the infrared signal, and is projected the infrared signal by the second end, wherein the infrared light supply Size is greater than the size of the second end.

In some possible implementations, the first end at least covers the light-emitting surface of the infrared light supply.

In some possible implementations, the infrared light supply is side light emitting source, the axial direction of the first end and first Direction formation first angle, the first direction and the second end are axially formed second angle, and the first direction is institute State the axial direction in the middle position of light guide structure.

In some possible implementations, the infrared light supply includes multiple light sources, the first end include with it is described The corresponding multiple openings of multiple light sources, the second end include an opening, and the infrared signal is penetrated from the multiple opening Enter, and is projected from one opening.

In some possible implementations, the light emitting device further include:

Lens, the lens are arranged between the infrared light supply and the first end, are used for transmission the infrared light letter Number.

In some possible implementations, the lens are packaged lens, the convex surfaces direction of the packaged lens The convex surfaces of the first end setting or the packaged lens are arranged towards the infrared light supply.

In some possible implementations, the light guide structure is fixedly connected with the infrared light supply.

In some possible implementations, the light emitting device is applied to electronic equipment, the infrared light supply and/or institute The center that light guide structure is fixedly installed in the electronic equipment is stated, and at least part of the infrared light supply is located at the display The lower section of the frame of the display screen is arranged in the lower section of the backlight module of screen, the second end of the light guide structure.

The third aspect provides a kind of electronic equipment, comprising:

Display screen, and

Light emitting device described in any mode in the cards in second aspect and second aspect；Wherein, the hair Infrared light supply in electro-optical device is located at the lower section of the display screen, and the light guide structure in the light emitting device is at least partially disposed at institute State the lower section of the frame of display screen.

In some possible implementations, the electronic equipment further include:

Center, the infrared light supply and/or the light guide structure are fixedly installed in the center, and the infrared light supply At least part is located at the lower section of the backlight module of the display screen, and the second end of the light guide structure is arranged in the display screen Frame lower section.

In some possible implementations, the electronic equipment further include:

Wedge is arranged between the display screen and the light guide structure, for changing what is projected from the light guide structure The direction of infrared signal and/or the wedge are used to affix to the light guide structure point of the cover board of the electronic equipment Glue region.

In some possible implementations, the electronic equipment further include:

Fingerprint recognition mould group, is arranged in the lower section of the display screen；

Wherein, the fingerprint recognition mould group is used to receive the infrared light after the irradiation human finger that the light emitting device issues Signal, the infrared signal are used to detect the finger print information of the finger.

In some possible implementations, the display screen is liquid crystal display, the dispensing region of the display screen Width is less than the minimum widith of projection of the infrared light supply in the light emitting device in the display screen.

Based on above technical scheme, when the light emitting device is installed on the electronic equipment with LCD, by guaranteeing the hair The size of the infrared light supply of electro-optical device is greater than the size of the signal output end of the light guide structure in the light emitting device, can be by institute State infrared light supply at least part be mounted on the LCD display screen lower section, and by the light guide structure will be described red The infrared signal that outer light source issues guides the lower section of the frame to the display screen, and then realizes that LCD shields the screen of display comprehensively Lower living things feature recognition.

Detailed description of the invention

Fig. 1 is the floor map for the electronic equipment that the application can be applicable in.

Fig. 2 is partial cutaway schematic view of the electronic equipment shown in FIG. 1 along A '-A '.

Fig. 3 is the schematic side sectional figure of the electronic equipment of the application one embodiment.

Fig. 4 is the schematic side sectional figure of the light emitting device of the application one embodiment.

Fig. 5 be include light emitting device shown in Fig. 4 electronic equipment schematic side sectional figure.

Fig. 6 is the schematic side sectional figure of the light emitting device of another embodiment of the application.

Fig. 7 is the schematic perspective view of light emitting device shown in fig. 6.

Fig. 8 be include light emitting device shown in fig. 6 electronic equipment schematic side sectional figure.

Fig. 9 is the schematic side sectional figure of the electronic equipment of another embodiment of the application.

Figure 10 is the schematic side sectional figure of the electronic equipment of the application another embodiment.

Figure 11 is the schematic side sectional figure of the light emitting device of the application another embodiment.

Figure 12 is the schematic side sectional figure of the electronic equipment of the application another embodiment.

Figure 13 is showing for the structure formed in the light guide structure that packaged lens are arranged in electronic equipment shown in Figure 12 It is intended to.

Figure 14 is the another of the structure formed in the light guide structure that packaged lens are arranged in electronic equipment shown in Figure 12 One schematic diagram.

Figure 15 is the schematic side sectional figure of the electronic equipment of the application another embodiment.

Figure 16 is the side view of the light guide structure in electronic equipment described in Figure 15.

Figure 17 is the side view for setting the first port of light guide structure shown in Figure 16 to pyramidal structure.

Figure 18 is the side view of the light guide structure of another embodiment of the application.

Figure 19 is the partial side elevation view of the light guide structure of the application another embodiment.

Specific embodiment

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

The technical solution of the embodiment of the present application can be applied to various electronic equipments, for example, smart phone, laptop, The portable or mobiles such as tablet computer, game station calculate equipment and electronic databank, automobile, ATM (automatic teller machine) Other electronic equipments such as (Automated Teller Machine, ATM), but the embodiment of the present application does not limit this.

The technical solution of the embodiment of the present application can be used for shielding lower optical image acquisition, for example, shielding lower living things feature recognition Or shield lower concealed pick-up head function etc., wherein living things feature recognition, can also be special for other biological other than fingerprint recognition Sign identification, for example, vivo identification etc., the embodiment of the present application does not also limit this.The skill of the embodiment of the present application in order to facilitate understanding Art scheme is first below introduced biometrics identification technology under shielding.

As electronic equipment steps into comprehensive screen epoch, what electronic equipment front physical characteristics collecting region was shielded comprehensively is squeezed Pressure, thus shield under (Under-display or Under-screen) biometrics identification technology more and more attention has been paid to.Under screen Biometrics identification technology, which refers to, is mounted on living things feature recognition mould group (such as fingerprint recognition mould group) below display screen, thus It realizes and carries out living things feature recognition operation in the display area of display screen, do not need in electronic equipment front in addition to display area Region be arranged physical characteristics collecting region.

Shield lower biometrics identification technology carried out using the light returned from the top surface of equipment display component fingerprint incude with 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 logical It crosses and is configured to acquire and detect the optical element of the light returned properly to realize desired optical imagery.

Figures 1 and 2 show that shield the schematic diagram for the electronic equipment 100 that lower biometrics identification technology can be applicable in, wherein Fig. 1 is the front schematic view of electronic equipment 100, and Fig. 2 is that electronic equipment 100 shown in FIG. 1 shows along the cut-away section structure of A '-A ' It is intended to.

As depicted in figs. 1 and 2, electronic equipment 100 may include display screen 120 and living things feature recognition mould group 140, In, the display screen 120 has display area 102, and the display screen 120 is arranged in the living things feature recognition mould group 140 Lower section.

The display screen 120 can be self light emitting display panel, use with self luminous display unit as display picture Element.For example display screen 120 can be Organic Light Emitting Diode (Organic Light-EmittingDiode, OLED) display screen Or micro-led (Micro-LED) display screen.In other alternate embodiments, the display screen 120 may be Liquid crystal display (Liquid Crystal Display, LCD) or other passive light emitting displays, the embodiment of the present application is to this With no restrictions.

On the other hand, the display screen 120 is specially touching display screen, can not only carry out picture and show, can be with Touch or the pressing operation for detecting user, to provide a personal-machine interactive interface for user.For example, in a kind of embodiment In, the electronic equipment 100 may include touch sensor, and the touch sensor can be specially touch panel (Touch Panel, TP), it can be set on 120 surface of display screen, partially can also integrate or be monolithically integrated into the display Inside screen 120, to form the touching display screen.

The living things feature recognition mould group 140 can be specially optical bio feature identification mould group, such as optical finger print mould Group is mainly used for acquiring the biological information (such as information in fingerprint) of user.In the embodiment of the present application, the life Object feature identification mould group 140 can be arranged at the regional area of 120 lower section of display screen, so that the biology is special The physical characteristics collecting region (or induction region) 130 of sign identification mould group 140 is at least partially disposed at the display of the display screen 120 Region 102.

As one embodiment, the living things feature recognition mould group 140 may include optical image acquisition device, the light Learning image collecting device may include multiple optical image acquisition units, and the optical image acquisition unit can specifically include light Detector or photoelectric sensor.In other words, the optical image acquisition device of the living things feature recognition mould group 140 can be with Including optical detector (Photo detector) array (or being photodetector array, photosensor arrays) comprising Multiple optical detector/photoelectric sensors in array distribution.In other words, the optical picture of the living things feature recognition mould group 140 As acquisition device may include the optical bio feature sensor with optical sensor array, such as optical fingerprint sensor；Institute Stating optical sensor array includes multiple optical sensor units, and the optical sensor unit can specifically include optical detector or light Electric transducer, and the region of the optical sensor array or photoinduction range correspond to the living things feature recognition mould group 140 physical characteristics collecting region 130.As shown in Figure 1, the physical characteristics collecting region 130 is located at the display screen 120 Among display area 102, therefore, user is needing to be unlocked the electronic equipment 100 or other biological signature verification When, it is only necessary to by finger pressing in the physical characteristics collecting region 130 for being located at the display screen 120, it can realize life The input operation of object feature.Since physical characteristics collecting detection can be realized inside the display area 102 of the display screen 120, Fingerprint key (such as Home key) is arranged without the special reserved space in its front in electronic equipment 100 using the above structure, because And it can be using screen scheme comprehensively.Therefore, the display area 102 of the display screen 120 can extend substantially to the electronics and set Standby 100 entire front.

In the embodiment of the present application, the living things feature recognition mould group 140 can use external light source and examine as biological characteristic Survey the excitation light source of identification.

By taking the display screen 120 is using LCD as an example.When finger touch, pressing or close to (for ease of description, in this Shen Please in be referred to as pressing) at the physical characteristics collecting region 130, the light that the external light source issues occurs saturating in finger Transmitted light is penetrated and is formed, wherein the transmitted light can carry the biological information of user's finger.For example, the light quilt After the fingerprint on user's finger surface transmits, since the wrinkle ridge of finger print and the transmitted light of line paddy are different, Transmitted light Portable belt has the finger print information of user.The transmitted light returns to the display screen 120 and by biological characteristic below The photodetector array of identification mould group 140 receives and is converted to corresponding electric signal, i.e. biological characteristic detects signal.It is described Electronic equipment 100 can obtain the biological information of user based on biological characteristic detection signal, and can be into one Step carries out biometric matches verifying, to complete the authentication of active user in order to confirm whether it has permission to described Electronic equipment 100 carries out corresponding operation.

In other alternate embodiments, the living things feature recognition mould group 140 also be can be set under the display screen 120 The whole region of side, so that the physical characteristics collecting region 130 to be expanded to the entire viewing area of the entire display screen 120 Full frame living things feature recognition is realized in domain 102.

It should be understood that the electronic equipment 100 further includes cover sheet 110, the cover board in specific implementation 110 can be specially transparent cover plate, such as glass cover-plate or sapphire cover board, be located at the top of the display screen 120 simultaneously The front of the electronic equipment 100 is covered, and 110 surface of the cover sheet is also provided with protective layer.Therefore, the application In embodiment, so-called finger, which presses the display screen 120, can actually refer to finger pressing above the display screen 120 Cover board 110 or the covering cover board 110 protective layer.

On the other hand, the lower section of the living things feature recognition mould group 140 is also provided with circuit board 150, such as soft Circuit board (Flexible Printed Circuit, FPC) or printed circuit board (Printed CircuitBoard, PCB), The living things feature recognition mould group 140 can be by pad solder to the circuit board 150, and it is real to pass through the circuit board 150 Now the electrical interconnection with the other elements of other peripheral circuits or the electronic equipment 100 and signal transmit.For example, the life Object feature identification mould group 140 can receive the control letter of the processing unit of the electronic equipment 100 by the circuit board 150 Number, and can also be exported biological characteristic detection signal to the place of the electronic equipment 100 by the circuit board 150 Manage unit or control unit etc..

It should be noted that the living things feature recognition mould group 140 is provided using external light source for carrying out biological spy When the optical signal of sign detection identification, the image acquisition units in the living things feature recognition mould group 140 not only can be adapted for non- Self light emitting display panel, such as LCD or other passive light emitting displays, can be applicable to such as OLED display screen self-luminous Display screen.

But since the backlight module of non-spontaneous smooth display screen has barriering effect to optical signal, the external light Source needs to be arranged in the lower section of the non-display area of non-spontaneous smooth display screen, in other words the external light source need to be arranged it is non-from Dispensing region below the non-display area of light emitting display.It should be understood that the non-display area can also in the embodiment of the present application With the periphery of referred to as display screen or the frame of display screen.For ease of description, being used uniformly frame below to the embodiment of the present application Technical solution be illustrated.

Fig. 3, which is shown, shields the electronic equipment with non-spontaneous smooth display screen that lower biometrics identification technology can be applicable in 200 schematic block diagram.

As shown in figure 3, the electronic equipment 200 may include cover board 211, display module 212 and backlight module 213. Wherein, the cover board 211, the display module 212 and the backlight module 213 can form the electronic equipment 200 Non-spontaneous smooth display screen.Wherein, the non-display area of display screen is referred to as non-display area or the institute of the cover board 211 State the frame of cover board 211.The backlight module 213 be used for for the well-off brightness of the display module 212 be evenly distributed Light source, so that the display module 212 can normally show image.The cover board 211 is used as image display interfaces.Further Ground, the display module 212 are specially when showing touch module, and the cover board 211 is also used as the touch-control of human finger 210 Operation interface.

As shown in figure 3, the electronic equipment 200 can also include living things feature recognition mould group 220 and external light source 230, Wherein, the external light source 230 is used to issue the optical signal for carrying out biological characteristic detection identification, the living things feature recognition The optical signal 233 formed via the transmission of human finger 210 that mould group 220 emits for receiving the external light source 230, and according to The optical signal 233 obtains the biological information of the finger 210, for example, the fingerprint image of the finger 210.

Since backlight module 213 has blocking effect to optical signal 233, therefore, it is necessary to external light source 230 is arranged in institute The lower section of the non-display area 250 of cover board 211 is stated, specifically, the external light source 230 is arranged in the non-display area Dispensing region in 250.Further, the display module 212 can be set in the display area and part of the cover board 211 The lower section of the display module 212, the living things feature recognition is arranged in the lower section of non-display area, the backlight module 213 The lower section of the backlight module 213 is arranged in mould group 220.

In the embodiment of the present application, by taking the living things feature recognition mould group 220 is for fingerprint recognition as an example, by the external light The lower section of the cover board 231 is arranged in source 230, and the optical signal that the external light source 230 issues can directly pass through the cover board 211 are transmitted to the finger 210, and the optical signal transmissive of fingerprint recognition is used for via formation after the finger 210 transmission.This Shen Please embodiment technical solution compared with the lower section of the backlight module 213 is arranged in the living things feature recognition mould group 220, Avoid transmission damage of the optical signal of the sending of external light source 230 in the backlight module 213 and the display module 212 Consumption effectively reduces loss of the optical signal of the sending of external light source 230 in transmission process.In addition, the biology is special The lower section of the backlight module 213 is arranged in sign identification mould group 220, can efficiently separate the transmitting road of the external light source 230 The RX path of diameter and the living things feature recognition mould group 220, and then the living things feature recognition mould group 220 can be effectively improved The information content for the finger print information that the optical signal received carries.In conclusion the technical solution of the embodiment of the present application can be effective Improve the recognition effect of living things feature recognition.

It should be understood that the living things feature recognition mould group 220 received is used to carry out biological characteristic in the embodiment of the present application The optical signal of identification can be the light of the carry out optical treatment for the optical signal that human finger 210 issues the external light source 230 Signal.It is transmitted for example, the optical signal that the living things feature recognition mould group 220 receives can be progress via human finger 210 The optical signal of the backlight module 213 is passed through afterwards.The embodiment of the present application is not specifically limited in this embodiment.

As shown in figure 3, the electronic equipment 200 can also include the connection circuit being connected with the external light source 230 231, the connection circuit 231 for receiving control signal, the control signal for control the external power supply 230 it is luminous or Person does not shine.For example, the connection circuit 231 can be circuit board.For example, printed circuit board (Printed Circuit Board, PCB) or flexible circuit board (Flexible Printed Circuit, FPC).

As one embodiment, the backlight module 213 from top to bottom successively may include composite membrane, bright enhancement film, diffusion Film and light guide plate (light guide plate).In image display process, it is seen that the visible light that light source issues passes through light guide plate It is transmitted to diffusion barrier later, the light after the diffusion membrane diffusion is transmitted to the bright enhancement film, and the bright enhancement film is for increasing The optical signal that benefit receives, and the optical signal after gain is sent to composite membrane, the composite membrane is used for further gain receiver The optical signal arrived, and by the optical signal transmission after gain to display screen, for performing image display.Further, the backlight Mould group 213 can also include steel plate and/or reflectance coating, and the reflectance coating can be set in the lower section of the light guide plate, and being used for will Visible light source returns the light guide plate towards the visible reflectance that the direction opposite with display module 212 is projected, and then can described in raising The utilization rate for the light that light-exposed source is projected, light court and 212 phase of display module that the steel plate is used to that the visible light source to be stopped to project It projects in anti-direction.

As one embodiment, the external light source 230 is infrared light supply.It should be noted that the infrared light supply hair Infrared signal out is black light.And being used for the optical signal that the display module 212 performs image display is visible light, tool Body, the visible light can be the light of any light source sending positioned at the behind liquid crystal display (LCD).For example, described can Light-exposed source can be electroluminescent (EL) backlight, small-sized cold-cathode fluorescence lamp (CCFL) or LED backlight.In other words, In the embodiment of the present application, the optical signal for living things feature recognition is black light signal, and optical signal for displaying images It is visible light signal, can be avoided for the black light signal of living things feature recognition and visible light signal for displaying images It has an impact from each other.That is, the embodiment of the present application can effectively carry out biological characteristic while guaranteeing that image is normally shown Identification.

As one embodiment, the mist degree when infrared signal passes through the backlight module 213 is less than for showing The visible light of image passes through the mist degree when backlight module 213.In turn, the backlight module 213 can not only be realized to can The modulation of light-exposed signal, and can be effectively reduced loss of the infrared signal in optic path.For example, described infrared Mist degree when optical signal passes through the diffusion layer in the backlight module 213 is less than visible light for displaying images and passes through the expansion Dissipate mist degree when layer.Similarly, the light transmittance when infrared signal passes through the backlight module 213, which can also be greater than, to be used for Show the light transmittance when visible light of image passes through the backlight module 213.For example, the infrared signal passes through the diffusion Light transmittance when layer is greater than the light transmittance when visible light passes through the diffusion layer.In another example the infrared signal passes through The light transmittance in the reflecting layer of the backlight module 213 is greater than light transmission when visible light for displaying images passes through the reflecting layer Rate.It can be found that the diffuser plate can not only improve the positive brightness of display module 212, make during image is realized The distribution for obtaining visible light is more uniform, and then guarantees that user not can be appreciated that reflection point from front.During living things feature recognition, Mist degree when being passed through the diffusion layer due to the infrared signal is less than visible light for displaying images and passes through the diffusion Layer when mist degree, and the infrared signal pass through the diffusion layer when light transmittance be greater than the visible light pass through the diffusion Light transmittance when layer can be effectively reduced loss of the infrared signal in optic path, and then improve biological characteristic Recognition effect.

Optionally, when the backlight module 213 includes steel plate, the steel plate could be formed with aperture, the biological characteristic Identification mould group 220 can be set in the lower section of the aperture, so that the living things feature recognition mould group 220 receives the external light After the irradiation human finger that source 230 issues and across the infrared signal of the aperture.The aperture can be as far as possible It prevents visible light signal from transmitting to the direction opposite with display module 212, and avoids the backlight module 213 due to external impact It damages, and can be effectively reduced energy damage of infrared signal when by the steel plate for living things feature recognition Consumption, and then improve the recognition effect of biological characteristic.

It should be understood that the specific structure and function and Fig. 2 of living things feature recognition mould group 220 shown in Fig. 3 and he is shown in Fig. 2 Living things feature recognition mould group 140 is similar, and to avoid repeating, details are not described herein again.

As shown in figure 3, the electronic equipment 200 can also include center 240, the center 240, which can be, to be used to support Any frame or structure of the electronic equipment 200.The cover board 211 is arranged in the living things feature recognition mould group 220 When the lower section of non-display area 250, it can be affixed directly to the lower surface of the cover board 211, the center 240 can also be passed through It is fixed on the lower section of the cover board 211.The embodiment of the present application is not specifically limited in this embodiment.

As one embodiment, as shown in figure 3, the cover board 211 can be fixedly connected with the center 240, and it is located at There are gap (the dispensing region of the i.e. described cover board 211) between the display module 212 and the center of 211 lower section of the cover board, The setting of external light source 230 is in the gap (dispensing region).As shown in connection with fig. 3, the width of the frame of the cover board 221 250 include the external light source 230, the occupied width 251 of part display module 212 and the part occupancy of center 240 Width 252.It is to be noted, however, that the dispensing with the development of comprehensive screen technology, in the width 250 of the cover board 211 Region needs to be arranged more and more narrow, and then results in the width 251 and is less than and install the width that the external light source 230 needs Degree, that is to say, that the lower section of the frame of the cover board 211 can no enough spaces arrange the external light source 230.

The embodiment of the present application provides a kind of improved light emitting device, can be adapted for the non-spontaneous comprehensive screen display of smooth display screen Physical characteristics collecting or identification under screen under showing.Specifically, the light emitting device may include: infrared light supply, for issuing Infrared signal；Light guide structure, the light guide structure include first end and second end, and the light guide structure is used for by described the One end receives the infrared signal, and is projected the infrared signal by the second end, wherein the infrared light supply Size be greater than the second end size.When the light emitting device is installed on the electronic equipment with non-spontaneous smooth display screen, By guaranteeing that the size of the infrared light supply of the light emitting device is greater than the signal output end of the light guide structure in the light emitting device Size, at least part of the infrared light supply can be mounted on to the lower section of display screen, and will by the light guide structure The infrared signal that the infrared light supply issues guides the lower section of the frame to the display screen, and then realizes that non-spontaneous light is shown Living things feature recognition under screen under comprehensive screen display of screen.

It should be noted that the size of the infrared light supply can refer to including the infrared light supply in the embodiment of the present application Device size.For example, the size of the infrared light supply can refer to institute when the infrared light supply and circuit board integrated setting State the size that infrared light supply and the circuit board are formed.

The electronic equipment that Fig. 4 to Figure 19 shows the light emitting device of the embodiment of the present application and the light emitting device can be applicable in 300 schematic diagram.For ease of understanding, shielding fingerprint recognition under the screen of display comprehensively applied to LCD with the light emitting device below is Example, is described in detail the light emitting device in the embodiment of the present application in conjunction with Fig. 4 to Figure 19.

It should be understood that thickness, length and width equidimension and the hair of the various parts in the embodiment of the present application shown in attached drawing The integral thickness of electro-optical device, length and width equidimension are merely illustrative, and constitute any restriction without coping with the application.

Fig. 4 shows the side cross-sectional view of the light emitting device of the application one embodiment.Fig. 5 be include it is shown in Fig. 4 shine The schematic side sectional figure of the electronic equipment 300 of device.

As shown in figure 4, the light emitting device may include: infrared light supply 330 and light guide structure 361.Wherein, described infrared Light source 330 can be external light source 230 shown in Fig. 3, and the infrared light supply 330 is for issuing infrared signal.Optionally, such as Shown in Fig. 4, the infrared light supply 330 may include external light source 331 and circuit board 332.Optionally, the circuit board 332 can To be printed circuit board (PrintedCircuit Board, PCB) or flexible circuit board (Flexible Printed Circuit, FPC).The light guide structure 361 includes first end and second end, and the light guide structure 361 is used for by described the One end receives the infrared signal, and is projected the infrared signal by the second end.In other words, the first end For the input terminal of the infrared signal of the light guide structure 361, the second end is the infrared signal of the light guide structure 361 Output end.Wherein, the size of the infrared light supply 330 is greater than the size of the second end.As shown in figure 5, the electronics is set Standby 300 may include: cover board 311, display module 312, backlight module 313 and living things feature recognition mould group 320.It should be understood that The cover board 331 can be cover board 211 shown in Fig. 3, and the display module 312 can be display module 212 shown in Fig. 3, The backlight module 313 can be backlight module 213 shown in Fig. 3, and the living things feature recognition mould group 320 can be Fig. 3 institute The living things feature recognition mould group 220 shown, in order to avoid repeating, details are not described herein again.

It can be found that when the infrared light supply 330 is installed on the electronic equipment with LCD, by guaranteeing the infrared light The size in source 330 is greater than the size of the second end of the light guide structure 361, can be by least one of the infrared light supply 330 Divide the lower section (the non-dispensing region of the i.e. described cover board, specifically may be mounted at the lower section of display module) for being mounted on LCD, and passes through The infrared signal that the infrared light supply 330 issues is guided the lower section of the frame to the LCD by the light guide structure 361, into And realize living things feature recognition under the screen under comprehensive screen display of LCD.As shown in figure 5, at least one of the infrared light supply 330 Divide the lower section that may be mounted at the backlight module 313, i.e., the space that the described infrared light supply 330 needs to occupy is greater than the cover board Space belonging to 311 dispensing region, in the embodiment of the present application, by the way that the infrared light supply 330 is moved to the backlight mould The lower section of group 313, and by the light guide structure 361 be transmitted to the infrared signal that the infrared light supply 330 issues described Below the frame of cover board 311, avoids and the infrared light letter that the infrared light supply 330 issues is transmitted by the backlight module 313 Number, it can be effectively reduced loss of the infrared signal in transmission path of the sending of infrared light supply 330, and then improve biology The recognition effect of feature.

As shown in figure 4, the side cross-sectional view of the light guide structure 361 can be rectangular.Specifically, the light guide structure 361 It can be specially cylindrical structure, square column structure etc..The light guide structure 361 is also possible to the knot of cylindrical structure and square column structure The structure formed after conjunction.But the embodiment of the present application is without being limited thereto.When the light guide structure 361 is cylindrical structure, can effectively it drop Loss of the low light guide structure 361 during transmitting infrared signal.In one embodiment of the application, the leaded light Structure 361 can be solid construction.In another embodiment of the application, cavity has been can be set in the light guide structure 361, The cavity is used for transmission infrared signal.

The size of the infrared light supply 330 can be minimum widith of the infrared light supply 330 on first direction, In, the first direction can be direction parallel with the plane where LCD and vertical with the frame of the LCD.Optionally, institute The size for stating infrared light supply 330 can be device that external light source 331 and circuit board 332 are formed along the first direction most Small width.Optionally, what the size of the infrared light supply 330 can be external light source 331 and circuit board 332 can not bending part Minimum widith on the first direction.For example, the size of the infrared light supply 330 can be infrared light as shown in Figure 5 The width in source 330.Similarly, it is wide to can be minimum of the second end on the first direction for the size of the second end Degree.For example, the size of the second end can be the width of light guide structure 361 as shown in Figure 5.

Optionally, in some embodiments of the present application, the first end of the light guide structure 361 at least covers described infrared The light-emitting surface of light source 330.Thus, it is possible to ensure that the first end of the light guide structure 361 can receive enough infrared light letters Number.It should be understood that the application covers the specific location of the infrared light supply 330 without limitation to the first end.For example, described The light-emitting surface of the infrared light supply 330 is completely covered in one end.In another example the first end covers the hair of the infrared light supply 330 The center of smooth surface.

When light emitting device shown in Fig. 4 is installed on the electronic equipment 300, the embodiment of the present application is to its specific mounting means Without limitation.For example, as shown in figure 5, the light guide structure 361 and the infrared light supply 330 can be installed separately.Specifically, The light guide structure 361 and the infrared light supply 330 can be separately mounted on the center 340 of the electronic equipment 300.But this Apply for that embodiment is without being limited thereto.For example, in other alternate embodiments, the light guide structure 361 and the infrared light supply 330 It is first fixedly connected, then forms the light guide structure 361 by way of being fixedly connected with the infrared light supply 330 Component is fixed on the center 340.

It should be understood that the embodiment of the present application is not specifically limited the following way of realization for being fixedly connected with mode:

Mode, 361 and of the light guide structure are fixedly connected between the light guide structure 361 and the infrared light supply 330 Being fixedly connected between mode, the infrared light supply 330 and the center 340 between the center 340 is fixedly connected with mode.

As shown in figure 5, the electronic equipment 300 can also include modulated structure 370, the modulated structure 370 is for connecing The infrared signal that the infrared light supply 330 issues is received and modulated, and modulated infrared signal is sent to the leaded light The first end of structure 361.Optionally, the modulated structure 370 can be lens, for example, spherical lens or hemisphere face it is saturating Mirror, in another example convex lens or concavees lens.Optionally, the modulated structure 370 can be with the fixed company of the light guide structure 361 It connects, can also be fixedly connected with the infrared light supply 330.But the embodiment of the present application is without being limited thereto.For example, as shown in figure 5, described Modulated structure 370 can be separately positioned with the light guide structure 361, and the modulated structure 370 divides with the infrared light supply 330 From setting.Optionally, the modulated structure 370 can be fixedly installed in the center 340 of the electronic equipment 300.

As shown in figure 5, the electronic equipment 300 can also include wedge 380, the wedge 380 is led for changing described The direction of the infrared signal of the second end (the i.e. infrared signal output end) output of photo structure 361, and/or, the light Wedge 380 is used to affix to the light guide structure 361 the dispensing region of the cover board 311.Optionally, the material of the wedge 380 Material can be optical cement.Specifically, the wedge 380 is for guiding the infrared signal that the second end exports to the lid The fingerprint collecting region of plate 311.The finger 310 forms transmitted light as shown in Figure 5 after transmiting the infrared signal received Signal 333.The living things feature recognition mould group 320 is used to receive the optical signal transmissive 333, and according to the optical signal transmissive 333 carry out living things feature recognition.For example, fingerprint recognition.

It should be understood that Fig. 4 and Fig. 5 are only a kind of example, the restriction to the embodiment of the present application should not be construed as.For example, In other alternate embodiments, light emitting device shown in Fig. 4 or electronic equipment shown in fig. 5 300 can also include that visible light is filtered Mating plate.Optionally, the visible filter can be set in the backlight module 313 and the living things feature recognition mould group Between 320.Thus, it is possible to filter out to the visible light being transmitted at visible filter, biological spy can be further increased The identification quality of sign identification mould group 320.Wherein, the visible filter specifically can be used for filtering out visible wavelength, example Such as, the visible light etc. shown for image.The optical filter specifically may include one or more optical filters, and described one A or multiple optical filters are configurable to such as bandpass filters, to filter out the light of visible light source transmitting, while not filtering Except infrared signal.One or more of optical filters can be implemented as such as optical filtering coating, which applies Layer is formed on one or more continuous interfacials, or can be implemented as on one or more discrete interfaces.

It should be understood that the visible filter can be produced on the surface of any optical component, or along to via Finger transmits in the transmitted light to be formed to the optical path of living things feature recognition mould group 320.For example, the visible filter can To be fitted in top or the living things feature recognition mould including the steel plate in 312 bottom surface of display module, the backlight module 313 The inside etc. of group 320.

It should also be understood that one kind that light emitting device shown in Fig. 4 and electronic equipment shown in fig. 5 are only the embodiment of the present application is shown Example, should not be construed as the restriction to the embodiment of the present application.

For example, the side cross-sectional view of the light guide structure 361 shown in fig. 5 is square structure.But the embodiment of the present application is unlimited In this.For example, the side cross-sectional view of the light guide structure 361 can be the deformation of square structure in other alternate embodiments Structure.

In another example the second end of the size and light guide structure of the first end of the light guide structure 361 described in Fig. 5 Size is identical.But the embodiment of the present application is without being limited thereto.For example, the size of the first end can in other alternate embodiments To be greater than the size of the second end.In another example the size of the first end can be less than the size of the second end.

In another example the first end of the light guide structure 361 shown in fig. 5 axial direction and the light guide structure 361 second The axial direction at end is identical.But the embodiment of the present application is without being limited thereto.For example, in other alternate embodiments, the axis of the first end Predetermined angle is axially formed to the second end.In other words, the direction of the received infrared signal of the light guide structure The predetermined angle can be formed between the direction of the light guide structure output infrared signal.Optionally, the preset angle Degree can be less than or equal to 90 °.

The light emitting source in another example infrared light supply 330 shown in fig. 5 is positive.But the embodiment of the present application is without being limited thereto.But the application Embodiment is without being limited thereto.For example, the light emitting source 331 can be the illuminated light source in side in other alternate embodiments.

In another example the first end of light guide structure 361 described in Fig. 5 only includes an opening.But the embodiment of the present application is unlimited In this.For example, the first end may include multiple openings in other alternate embodiments.To ensure the light guide structure 361 can receive enough infrared signals.In other words, the infrared light supply 330 includes multiple light sources, the first end packet Include multiple openings corresponding with the multiple light source, the second end includes an opening, and the infrared signal is from described more A opening is injected, and is projected from one opening.

It is illustrated below with reference to distressed structure of the Fig. 6 to Figure 19 to Fig. 4 and light guide structure shown in fig. 5 361.

It should be noted that for purposes of illustration only, identical appended drawing reference indicates in the embodiment shown in Fig. 4 to Figure 19 Identical component, and for sake of simplicity, in different embodiments, omit the detailed description to same parts.

Fig. 6 shows the side cross-sectional view of the light emitting device of the application another embodiment.Fig. 7 is luminous dress described in Fig. 6 The schematic perspective view set.Fig. 8 be include light emitting device shown in fig. 6 electronic equipment 300 schematic side sectional figure.

As shown in fig. 6, the light emitting device may include light guide structure 362 and infrared light supply 330.Wherein, such as Fig. 6 to figure Shown in 8, during the first end of the light guide structure 362 extends to the second end of the light guide structure 362, it is formed with one Turning, the infrared signal that this turning can make the second end of the light guide structure 362 export are directly toward the cover board 311 induction region or pickup area.In other words, this turning can make the second end of the light guide structure 362 export Infrared signal is directly toward the finger 310 on the cover board 311.In other words, the opening of the second end of the light guide structure 362 Towards the finger 310.The light guide structure 362 avoids the electronic equipment 300 using additional component adjustment institute The direction of the infrared signal of the second end output of light guide structure 362 is stated, and then can effectively simplify the electronic equipment 300 Structure thereby reduces production cost.

It should be appreciated that Fig. 6 to Fig. 8 is only a kind of example of the embodiment of the present application, should not be construed as to the embodiment of the present application Restriction.For example, in light guide structure 362 in light emitting device described in Fig. 8, the axial direction of the first end and the second end Axially can directly shape at an angle.But the embodiment of the present application is without being limited thereto.For example, in other alternate embodiments, institute When to state infrared light supply 330 be side light emitting source, the axial direction of the first end can first and first direction formation first angle, described the One direction is axially formed second angle with the second end again, wherein the first direction is the centre of the light guide structure The axial direction of position.

Fig. 9 be include light emitting device shown in fig. 6 distressed structure electronic equipment 300 schematic side sectional figure.

As shown in figure 9, the electronic equipment 300 may include light guide structure 363.Wherein, the of the light guide structure 363 During one end extends to the second end of the light guide structure 363, it is formed with a turning, this turning can make described The infrared signal of the second end output of light guide structure 363 is directly toward the induction region or pickup area of the cover board 311.Or Person says that the infrared signal that this turning can make the second end of the light guide structure 363 export is directly toward the cover board Finger 310 on 311.In other words, the opening of the second end of the light guide structure 363 is towards the finger 310.The guide-lighting knot Structure 363 makes the electronic equipment 300 avoid the second end output for using additional component to adjust the light guide structure 362 The direction of infrared signal, and then can effectively simplify the structure of the electronic equipment 300, thereby reduce production cost.

As shown in figure 9, the process that the first end of the light guide structure 363 extends to the second end of the light guide structure 363 In, size can be gradually reduced.For example, it is assumed that the light guide structure 363 is column structure, then the first end is to described second During end extends, the outer diameter of the light guide structure 363 is gradually reduced.In other words, the ruler of the first end of the light guide structure 363 The size of the very little second end greater than the light guide structure 363.Thereby, it is possible to guarantee that it is enough that the light guide structure 363 receives The infrared signal that infrared light supply 330 issues.

As shown in figure 9, the close display module on the direction of transmitting optical signal 333, on the light guide structure 363 312 or the turning close to the side of the backlight module 313 position, higher than on the light guide structure 363 close to described The position at the turning of center 340.Thereby, it is possible to effectively reduce the light guide structure 363 to need the space occupied, and then can be with The very narrow electronic equipment of frame suitable for cover board.

It should be appreciated that Fig. 9 is only a kind of example of the embodiment of the present application, the limit to the embodiment of the present application should not be construed as It is fixed.For example, it is assumed that the light guide structure 363 is column structure, it is described in the light guide structure 363 in light emitting device described in Fig. 9 The outer diameter phase of the size of first end and the light guide structure 363 between the display module 313 and the center 340 Together.But the embodiment of the present application is without being limited thereto.For example, the size of the first end can be greater than in other alternate embodiments The outer diameter of the light guide structure 363 between the display module 313 and the center 340 is identical.

Figure 10 be include light emitting device shown in fig. 6 another distressed structure electronic equipment 300 schematic side sectional Figure.

As shown in Figure 10, the electronic equipment 300 may include light guide structure 364.Wherein, the light guide structure 364 First end is pyramidal structure.Specifically, the larger-size opening of the pyramidal structure is used to be directed at the infrared light supply 330, And then guarantee that the light guide structure 364 can receive enough infrared signals.

It should be appreciated that Figure 10 is only a kind of example of the embodiment of the present application, the limit to the embodiment of the present application should not be construed as It is fixed.For example, the first end of light guide structure 364 shown in Fig. 10 and the intermediate position of the light guide structure 364 pass through an obtuse angle Connection.But the embodiment of the present application is without being limited thereto.For example, in other alternate embodiments, the first end of the light guide structure 364 It can also be connected by a camber line with the intermediate position of the light guide structure 364.In another example in other alternate embodiments In, for the light guide structure 364 at least one hatching of the first section, the first end is connected to institute by the first camber line Second end is stated, first section is the section where the axial direction of the first end and the axial of the second end.

Figure 11 is the schematic perspective view of the light guide structure 365 of the application one embodiment.

As shown in figure 11, the light guide structure 365 can be half L structure.It is replaced using the light guide structure 365 as schemed When light guide structure 364 shown in 10, the smooth side of the light guide structure 365 can be connect with the center 340.Change sentence It talks about, it can be by the non-flat side of the light guide structure 365 close to display module 312 as shown in Figure 10 or backlight module 313 settings.In other words, for the light guide structure 365 on the first hatching of the first section, the first end passes through the first camber line Be connected to the second end, the corresponding center of circle of first camber line be located at first camber line far from the light guide structure The side of the heart.First section is the section where the axial direction of the first end and the axial of the second end, described first Hatching is cuing open for the side close to display module 312 or backlight module 313 as described in Figure 10 on first section Upper thread.

It should be understood that Figure 11 is only a kind of example of the embodiment of the present application, the restriction to the embodiment of the present application should not be construed as. For example, on the first hatching of the first section, the first end passes through the light guide structure in other alternate embodiments First camber line is connected to the second end, the corresponding center of circle of first camber line be located at first camber line close to the leaded light The side at the center of structure.Optionally, first camber line is connected to the second end, second camber line by the second camber line The corresponding center of circle is located at the side at the center far from the light guide structure of second camber line.Optionally, first camber line It is connected by straight line with second camber line.Optionally, second camber line is connected to described by least one line Second end.Optionally, at least one connecting line includes first straight line and second straight line, between the first straight line and second Angle be greater than default angle.Optionally, the first straight line is connected to the second straight line, the third by third camber line The corresponding center of circle of camber line is located at the side at the center close to the light guide structure of the third camber line.

Figure 12 is the schematic side sectional figure of the electronic equipment 300 of the application another embodiment.

As shown in figure 12, the electronic equipment 300 may include light guide structure 366.The shape of the light guide structure 366 has Body can be the shape of a bottle.Wherein, second end of the bottleneck as the light guide structure 366, for exporting infrared light letter Number.First end of the bottom of bottle as the light guide structure 366, for receiving the infrared signal of the output of infrared light supply 330.

It should be appreciated that Figure 12 is only a kind of example of the embodiment of the present application, the limit to the embodiment of the present application should not be construed as It is fixed.For example, being connected between light guide structure 366 and the infrared light supply 330 shown in Figure 12.But the embodiment of the present application is unlimited In this.For example, can also pass through between the infrared light supply 330 and the light guide structure 366 in other alternate embodiments Isolated form is fixedly connected with the center 340.In another example in other alternate embodiments, 330 He of infrared light supply It can also be connected by lens between the light guide structure 366, optionally, the lens are arranged in 330 He of infrared light supply Between the first end, it is used for transmission the infrared signal.The lens are arranged in the first end or the lens There is prepsetting gap between the first end.Optionally, the lens are concavees lens or the lens are convex lens.

Figure 13 and Figure 14 is that the first end of the light guide structure 367 of the application one embodiment is built-in with packaged lens Schematic perspective view.

As shown in figure 13, in one embodiment of the application, the convex surfaces of the packaged lens 371 are led described in The first end of photo structure 367 is arranged.In other words, the flat surface of the packaged lens 371 is arranged towards infrared light supply.For example, The flat surface of the packaged lens 371 is arranged towards infrared light supply 330 shown in Figure 12.The packaged lens 371 can as a result, It is also transmitted in the light guide structure 367, and then increased described with the wide-angle optical signal for exporting the infrared light supply 330 The utilization rate for the infrared signal that infrared light light source 331 issues.

As shown in figure 14, in another embodiment of the application, the convex surfaces of the packaged lens 372 are towards infrared Light source setting.For example, the flat surface of the packaged lens 372 is arranged towards infrared light supply 330 shown in Figure 12.In other words, The first end of the flat surface of the packaged lens 372 towards the light guide structure 367 is arranged.The packaged lens 372 as a result, The point light source signal that the infrared light supply 330 exports can be converted into parallel optical signal, and by the parallel optical signal after conversion It is transmitted in the light guide structure 367, thereby reduces the frequency of reflection or refraction of the optical signal in the light guide structure 367 Rate thereby reduces loss when optical signal transmits in the light guide structure 367.

Figure 15 is the schematic side sectional figure of the electronic equipment 300 of the application further embodiment.Figure 16 is described in Figure 15 Electronic equipment 300 in light guide structure 368 schematic perspective view.

As shown in figure 15, the electronic equipment 300 may include infrared light supply 330 and light guide structure 368, wherein described Infrared light supply 330 is the illuminated light source in side, and the light guide structure 368 can have one 90 ° of turning.The light guide structure 368 infrared signals for being parallel to the cover board 311 that can be used for issuing the infrared light supply 330, be converted to vertically with The infrared signal of the cover board 311, and export the infrared signal after conversion.Optionally, as shown in figure 16, the guide-lighting knot Structure 368 can be cylindrical structure.

It should be understood that Figure 16 is only a kind of example of the embodiment of the present application, the restriction to the embodiment of the present application should not be construed as. For example, in other alternate embodiments, when the infrared light supply is the illuminated light source in side, the light guide structure 368 can be adopted With non-cylindrical configuration or including the composite structure of various structures.For example, as shown in figure 17, the first of the light guide structure 369 End is pyramidal structure, and the second end of the light guide structure 369 is cylindrical structure.In another example as shown in figure 18, the light guide structure 3610 can be flat column structure.

Figure 19 is the partial side elevation view of the light guide structure 3611 of the embodiment of the present application.

As shown in figure 19, the light guide structure 3611 may include first end for receiving infrared signal and for defeated The second end of infrared signal out.The light guide structure 3611 can be specially column structure.Wherein, the light guide structure 3611 First end to the second end extend during, be formed with the turning of 90 ° of approximation, and internal diameter and outer diameter gradually subtract It is small.The second end may include a default opening.Specifically, the default opening, which can be, is in the second end The opening formed on the surface opposite with the first end.More specifically, the periphery of first opening can extend upwardly to Same plane.Optionally, the size of the default opening can be greater than or equal to preset value.For example, the face of the default opening Product can be greater than or volume is equal to preset value.It can be found that the default opening can effectively increase the second end output The quantity of infrared signal.It is open in addition, the first end of the light guide structure 3611 includes two, and described two opening parallels It, can be by the sufficiently large of the size of default opening setting, to meet life under large area screen when the frame setting of display screen The technology of object feature identification.

It should be understood that Figure 19 is only a kind of example of the embodiment of the present application, the restriction to the embodiment of the present application should not be construed as. For example, the second end of the light guide structure 3611 can also include multiple openings, the multiple in other alternate embodiments Opening can correspond to multiple living things feature recognition mould groups.In another example the light guide structure 3611 also may include other type knots Structure or the light guide structure 3611 also may include that column structure and other type structures combine the structure to be formed.

It should be understood that the light emitting device of the embodiment of the present application can be applied to biological characteristic detection device.For example, by the hair Electro-optical device integrated installation is in the biological characteristic detection device.

The biological characteristic detection device may include light emitting device and living things feature recognition mould group described above, described Living things feature recognition mould group is used to be arranged in the lower section of the display screen, to detect the life that the second end of the guiding device projects Object feature detects the optical signal return light that square target object is formed on the display screen, and the return light is used for the mesh Mark the biological information of object.

Optionally, in some embodiments of the present application, the light source is infrared light supply, and the biological characteristic detection light Signal is infrared signal.

Optionally, in some embodiments of the present application, the display screen is liquid crystal display comprising liquid crystal display mode Group and the backlight module of backlight is provided for the liquid crystal display die set, the living things feature recognition mould group is for being arranged described The lower section of backlight module, and the biological characteristic detection zone of the living things feature recognition mould group is at least partially disposed at the display screen Display area.

Optionally, in some embodiments of the present application, the light emitting device with the display screen for being disposed side by side on Below the cover board of the electronic equipment, and the light emitting device and the display screen non-overlapping.

It should also be understood that the light emitting device in the embodiment of the present application can be applied to electronic equipment, it is particularly applicable to that there is back The electronic equipment of optical mode group.

The electronic equipment may include display screen and light emitting device described above；Wherein, in the light emitting device Infrared light supply 330 be located at the lower section of the display screen, the light guide structure in the light emitting device is at least partially disposed at described aobvious The lower section of the frame of display screen.Such as the infrared light supply 330 can be positive light emitting source or side light emitting source, the infrared light supply 330 be positive light emitting source when the infrared light supply 330 can be arranged in display screen frame lower section, the light guide structure at this time The lower section of frame can be completely set, and the infrared light supply 330 infrared light supply 330 can be arranged when being side light emitting source In the lower section of the display area of display screen, the part light guide structure be can be set in the lower section of display area, another portion at this time The light guide structure is divided to can be set in the lower section in frame.

The infrared light supply 330 and/or the light guide structure are fixedly installed in the center of the electronic equipment, and described red At least part of outer light source 330 is located at the lower section of the backlight module of the display screen, the second end setting of the light guide structure In the lower section of the frame of the display screen.Believed as a result, by the infrared light that the light guide structure issues the infrared light supply 330 Number guidance to the display screen frame lower section, and then realize comprehensively screen display screen under living things feature recognition.

Optionally, in some embodiments of the present application, the electronic equipment can also include:

Wedge is arranged between the display screen and the light guide structure, for changing what is projected from the light guide structure The direction of infrared signal and/or the wedge are used to affix to the light guide structure point of the cover board of the electronic equipment Glue region.Optionally, the material of the wedge can be optical cement.

Optionally, in some embodiments of the present application, the electronic equipment further include:

Fingerprint recognition mould group, is arranged in the lower section of the display screen；Wherein, the fingerprint recognition mould group is described for receiving Infrared signal after the irradiation human finger that light emitting device issues, the infrared signal are used to detect the fingerprint of the finger Information.

Optionally, in some embodiments of the present application, the display screen is liquid crystal display, the dispensing of the display screen The width in region is less than the minimum widith of projection of the infrared light supply 330 in the light emitting device in the display screen.

It should be noted that the term used in the embodiment of the present application and the appended claims is only merely for description The purpose of specific embodiment, is not intended to be limiting the embodiment of the present application.

For example, the embodiment of the present application and the "an" of singular used in the attached claims, " described ", " above-mentioned " and "the" are also intended to including most forms, unless the context clearly indicates other meaning.

Those skilled in the art is it is to be appreciated 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 The range of the embodiment of the present application.

If be realized in the form of SFU software functional unit and when sold or used as an independent product, can store one In a computer-readable storage medium.Based on this understanding, the technical solution of the embodiment of the present application is substantially right in other words The part of part or the technical solution that the prior art contributes can be embodied in the form of software products, the calculating Machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be individual Computer, server or network equipment etc.) execute the embodiment of the present application the method all or part of the steps.And it is aforementioned Storage medium include: that USB flash disk, mobile hard disk, read-only memory, random access memory, magnetic or disk etc. are various can be with Store the medium of program code.

It is apparent to those skilled in the art that for convenience and simplicity of description, the equipment 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 by the present application, it should be understood that disclosed electronic equipment, device and method, it can To realize by another way.

For example, in Installation practice described above unit or module or component division, only a kind of logic function It can divide, there may be another division manner in actual implementation, for example, multiple units or module or component can combine or can It can be ignored with being integrated into another system or some units or module or component, or do not executed.

In another example the above-mentioned units/modules/component illustrated as separation/display unit may or may not be It is physically separated, it can it is in one place, or may be distributed over multiple network units.It can be according to actual The purpose for needing to select some or all of units/modules/component therein to realize the embodiment of the present application.

Finally, it should be noted that the mutual coupling or direct-coupling or communication link for above showing or discussing Connecing can be through some interfaces, the indirect coupling or communication connection of device or unit, can be electrical property, mechanical or other shapes Formula.

The above content, the only specific embodiment of the embodiment of the present application, but the protection scope of the embodiment of the present application is not It is confined to this, anyone skilled in the art can think easily in the technical scope that the embodiment of the present application discloses To change or replacement, should all cover within the protection scope of the embodiment of the present application.Therefore, the protection scope of the embodiment of the present application It should be subject to the protection scope in claims.

Claims

1. a kind of biological characteristic detection device, which is characterized in that apply in the electronic equipment with display screen, the biological characteristic Detection device includes:

Light emitting device, including light source and light guide structure, the light source is for providing biological characteristic detection optical signal, the guide-lighting dress It sets including first end and second end, the guiding device is used to receive the biological characteristic from the light source by the first end Optical signal is detected, and the biological characteristic is detected by optical signal by the second end and is projected, wherein the size of the light source is big In the size of the second end；

Living things feature recognition mould group, for the lower section of the display screen to be arranged in, to detect the second end-fire of the guiding device The return light that square target object is formed on the display screen of biological characteristic detection optical signal out, the return light is for examining Survey the biological information of the target object.

2. biological characteristic detection device according to claim 1, which is characterized in that the light source is infrared light supply, and institute Stating biological characteristic detection optical signal is infrared signal.

3. biological characteristic detection device according to claim 1 or 2, which is characterized in that the display screen is liquid crystal display Screen comprising liquid crystal display die set and provide the backlight module of backlight for the liquid crystal display die set, the biological characteristic is known Other mould group is used to be arranged in the lower section of the backlight module, and the biological characteristic detection zone of the living things feature recognition mould group is extremely Small part is located at the display area of the display screen.

4. biological characteristic detection device according to claim 3, which is characterized in that the light emitting device is used to show with described Display screen is disposed side by side below the cover board of the electronic equipment, and the light emitting device and the display screen non-overlapping.

5. biological characteristic detection device according to any one of claim 1 to 4, which is characterized in that the first end is extremely The light-emitting surface of the light source is covered less.

6. biological characteristic detection device according to any one of claim 1 to 5, which is characterized in that the first end Size is greater than or equal to the size of the second end.

7. biological characteristic detection device according to any one of claim 1 to 6, which is characterized in that the first end It is axial and the second end to be axially formed predetermined angle.

8. biological characteristic detection device according to claim 7, which is characterized in that the predetermined angle is less than or equal to 90°。

9. biological characteristic detection device according to claim 7, which is characterized in that the light source is side light emitting source, described Axial direction and first direction the formation first angle of first end, the first direction and the second end are axially formed second jiao Degree, the first direction are the axial direction in the middle position of the light guide structure.

10. biological characteristic detection device according to any one of claim 1 to 9, which is characterized in that the light source includes Multiple light sources, the first end include multiple openings corresponding with the multiple light source, and the second end includes an opening, institute It states biological characteristic detection optical signal to inject from the multiple opening, and is projected from one opening.

11. biological characteristic detection device according to claim 10, which is characterized in that the area of one opening is greater than Or it is equal to preset area.

12. biological characteristic detection device according to any one of claim 1 to 11, which is characterized in that the first end Round or polygon is projected as in the axial plane of the vertical first end, and/or, the second end is in vertical institute It states and is projected as round or polygon in the axial plane of second end.

13. biological characteristic detection device according to any one of claim 1 to 12, which is characterized in that the first end Structure be pyramidal structure.

14. biological characteristic detection device according to any one of claim 1 to 13, which is characterized in that the guide-lighting knot For structure at least one hatching of the first section, the first end is connected to the second end by the first camber line, and described One section is the section where the axial direction of the first end and the axial of the second end.

15. biological characteristic detection device according to claim 14, which is characterized in that the corresponding center of circle of first camber line Positioned at the side at the center far from the light guide structure of first camber line.

16. biological characteristic detection device according to claim 14, which is characterized in that the corresponding center of circle of first camber line Positioned at the side at the center close to the light guide structure of first camber line.

17. biological characteristic detection device according to claim 16, which is characterized in that first camber line passes through the second arc Line is connected to the second end, the second camber line corresponding center of circle be located at second camber line far from the light guide structure The side at center.

18. biological characteristic detection device according to claim 17, which is characterized in that first camber line is straight by one Line is connected with second camber line.

19. biological characteristic detection device according to claim 17, which is characterized in that second camber line passes through at least one A line is connected to the second end.

20. biological characteristic detection device according to claim 19, which is characterized in that at least one connecting line includes First straight line and second straight line, the angle between the first straight line and second are greater than default angle.

21. biological characteristic detection device according to claim 20, which is characterized in that the first straight line passes through third arc Line is connected to the second straight line, the corresponding center of circle of the third camber line be located at the third camber line close to the light guide structure Center side.

22. according to claim 1 to biological characteristic detection device described in any one of 21, which is characterized in that the biology is special Levy detection device further include:

Lens, the lens are arranged between the light source and the first end, are used for transmission the biological characteristic detection light letter Number.

23. biological characteristic detection device according to claim 22, which is characterized in that the lens are arranged described first There is prepsetting gap in end or between the lens and the first end.

24. biological characteristic detection device according to claim 22, which is characterized in that the lens are concavees lens, or The lens are convex lens.

25. biological characteristic detection device according to claim 22, which is characterized in that the lens are packaged lens, institute The convex surfaces for stating packaged lens are arranged towards the first end or the convex surfaces of the packaged lens are towards the light source Setting.

26. according to claim 1 to biological characteristic detection device described in any one of 25, which is characterized in that the guide-lighting knot Structure is fixedly connected with the light source.

27. according to claim 1 to biological characteristic detection device described in any one of 26, which is characterized in that the biology is special It levies detection device and is applied to electronic equipment, the light source and/or the light guide structure are fixedly installed in the electronic equipment Frame, and at least part of the light source is located at the lower section of the backlight module of the display screen, the second end of the light guide structure The lower section of the frame of the display screen is set.

28. a kind of light emitting device characterized by comprising

Infrared light supply, for issuing infrared signal；

Light guide structure, the light guide structure include first end and second end, and the light guide structure is used to terminate by described first The infrared signal is received, and is projected the infrared signal by the second end, wherein the size of the infrared light supply Greater than the size of the second end.

29. light emitting device according to claim 28, which is characterized in that the first end at least covers the infrared light supply Light-emitting surface.

30. the light emitting device according to claim 28 or 29, which is characterized in that the size of the first end is greater than or equal to The size of the second end.

31. the light emitting device according to any one of claim 28 to 30, which is characterized in that the axial direction of the first end with The second end is axially formed predetermined angle.

32. light emitting device according to claim 31, which is characterized in that the predetermined angle is less than or equal to 90 °.

33. light emitting device according to claim 31, which is characterized in that the infrared light supply is side light emitting source, described the Axial direction and first direction the formation first angle of one end, the first direction and the second end are axially formed second angle, The first direction is the axial direction in the middle position of the light guide structure.

34. the light emitting device according to any one of claim 28 to 33, which is characterized in that the infrared light supply includes more A light source, the first end include multiple openings corresponding with the multiple light source, and the second end includes an opening, described Infrared signal is injected from the multiple opening, and is projected from one opening.

35. light emitting device according to claim 34, which is characterized in that the area of one opening is greater than or equal to pre- If area.

36. the light emitting device according to any one of claim 28 to 35, which is characterized in that the first end is in vertical institute The round or polygon that is projected as in the axial plane of first end is stated, and/or, the second end is in the vertical second end Axial plane on be projected as round or polygon.

37. the light emitting device according to any one of claim 28 to 36, which is characterized in that the structure of the first end is Pyramidal structure.

38. the light emitting device according to any one of claim 28 to 37, which is characterized in that the light guide structure is first On at least one hatching of section, the first end is connected to the second end by the first camber line, and first section is The section at the axial place of the axial direction of the first end and the second end.

39. the light emitting device according to claim 38, which is characterized in that the corresponding center of circle of first camber line is located at described The side at the center far from the light guide structure of the first camber line.

40. the light emitting device according to claim 38, which is characterized in that the corresponding center of circle of first camber line is located at described The side at the center close to the light guide structure of the first camber line.

41. light emitting device according to claim 40, which is characterized in that first camber line is connected to by the second camber line The second end, the corresponding center of circle of second camber line are located at the one of the center far from the light guide structure of second camber line Side.

42. light emitting device according to claim 41, which is characterized in that first camber line by straight line with it is described Second camber line is connected.

43. light emitting device according to claim 41, which is characterized in that second camber line is connected by least one line It is connected to the second end.

44. light emitting device according to claim 43, which is characterized in that at least one connecting line includes first straight line And second straight line, the angle between the first straight line and second are greater than default angle.

45. light emitting device according to claim 44, which is characterized in that the first straight line is connected to by third camber line The second straight line, the corresponding center of circle of the third camber line are located at the center close to the light guide structure of the third camber line Side.

46. the light emitting device according to any one of claim 28 to 45, which is characterized in that the light emitting device also wraps It includes:

Lens, the lens are arranged between the infrared light supply and the first end, are used for transmission the infrared signal.

47. light emitting device according to claim 46, which is characterized in that the lens are arranged in the first end, or There is prepsetting gap between lens described in person and the first end.

48. light emitting device according to claim 46, which is characterized in that the lens are concavees lens or the lens For convex lens.

49. light emitting device according to claim 46, which is characterized in that the lens are packaged lens, and the hemisphere is saturating The convex surfaces of mirror are arranged towards the first end or the convex surfaces of the packaged lens are set towards the infrared light supply It sets.

50. the light emitting device according to any one of claim 28 to 49, which is characterized in that the light guide structure with it is described Infrared light supply is fixedly connected.

51. the light emitting device according to any one of claim 28 to 50, which is characterized in that the light emitting device is applied to Electronic equipment, the infrared light supply and/or the light guide structure are fixedly installed in the center of the electronic equipment, and described infrared At least part of light source is located at the lower section of the backlight module of the display screen, and the second end of the light guide structure is arranged described The lower section of the frame of display screen.

52. a kind of electronic equipment characterized by comprising

Display screen, and

The light emitting device according to any one of claim 28 to 51；Wherein, the infrared light supply position in the light emitting device Light guide structure in the lower section of the display screen, the light emitting device is at least partially disposed under the frame of the display screen Side.

53. electronic equipment according to claim 52, which is characterized in that the electronic equipment further include:

Center, the infrared light supply and/or the light guide structure are fixedly installed in the center, and the infrared light supply is at least A part is located at the lower section of the backlight module of the display screen, and the side of the display screen is arranged in the second end of the light guide structure The lower section of frame.

54. the electronic equipment according to claim 52 or 53, which is characterized in that the electronic equipment further include:

Wedge is arranged between the display screen and the light guide structure, infrared for changing projecting from the light guide structure The direction of optical signal and/or the wedge are used to affix to the light guide structure glue application region of the cover board of the electronic equipment Domain.

55. the electronic equipment according to any one of claim 52 to 54, which is characterized in that the electronic equipment also wraps It includes:

Wherein, the fingerprint recognition mould group is used to receive the infrared light letter after the irradiation human finger that the light emitting device issues Number, the infrared signal is used to detect the finger print information of the finger.

56. the electronic equipment according to any one of claim 52 to 55, which is characterized in that the display screen is liquid crystal Display screen, the width in the dispensing region of the display screen are less than the infrared light supply in the light emitting device in the projection of the display screen Minimum widith.