CN110309748A

CN110309748A - Biological characteristic detection system

Info

Publication number: CN110309748A
Application number: CN201910546083.7A
Authority: CN
Inventors: 朱文龙; 周扬
Original assignee: Shenzhen Fushi Technology Co Ltd
Current assignee: Shenzhen Fushi Technology Co Ltd
Priority date: 2019-06-23
Filing date: 2019-06-23
Publication date: 2019-10-08

Abstract

This application discloses a kind of biological characteristic detection systems, including display device and detection mould group.The display device includes cover sheet, display panel and backlight module.Display panel is located at the lower section of the cover board.Backlight module includes light guide plate and light source.Light guide plate is located at the lower section of display panel, and light guide plate includes the top and bottom being oppositely arranged and the side between bottom surface and top surface, and top surface faces the display panel.Light source is located at the side of light guide plate, and light source is used for the side-emitted backlight beam.Light source is also used to towards transmitting detection light beam above the cover sheet, and detection light beam penetrates the cover sheet and reaches an external object, and biological characteristic of the detection light beam for external object detects.The wavelength for detecting light beam is different from the wavelength of the backlight beam.Mould group is detected to be located at below the display device.The application has biological characteristic detection effect and preferable user experience under preferable shield.

Description

Biological characteristic detection system

Technical field

This application involves field of photoelectric technology more particularly to a kind of biological characteristic detection systems.

Background technique

As technological progress and people's living standard improve, for the electronic products such as mobile phone, tablet computer, camera, user Require more multi-functional and fashion appeal.Currently, the development trend of mobile phone is screen accounting with higher while having preposition The functions such as camera self-timer and recognition of face.And as the function that biological characteristic detection system is supported is more and more abundant, it needs to set The number of elements set is also more and more, needs to occupy the position of a part of positive display area of biological characteristic detection system, shadow Ring beautiful and user experience.

Recently, in order to realize screen comprehensively or close to screen effect comprehensively, shield lower biological characteristic detection technique and come into being, also It is the lower section that biological characteristic detection unit is placed on to display screen, is sent by display screen or emit detection light beam and realize biological characteristic Detection.

Summary of the invention

In view of this, the application provides and a kind of can be used in shielding the detection of lower biological characteristic for solve prior art problem Biological characteristic detection system.

The one aspect of the application provides a kind of biological characteristic detection system, including display device and detection mould group, described Display device includes cover sheet, display panel and backlight module.The display panel is located at the lower section of the cover board, described aobvious Show panel for showing image.The backlight module is located at the lower section of the display panel.The backlight module includes light guide plate And light source.The light guide plate is located at the lower section of the display panel, the light guide plate include the top and bottom being oppositely arranged, with And the side between the bottom surface and the top surface, the top surface face the display panel.The light source is located at described The side of light guide plate, the light source are used for the side-emitted backlight beam, and the backlight beam enters from the side to be led Inside tabula rasa, and it is emitted to the display panel from the top surface of the light guide plate, to realize that image is shown for the display panel Visible light beam is provided；The light source is also used to penetrate institute towards transmitting detection light beam, the detection light beam above the cover sheet It states cover sheet and reaches an external object, biological characteristic of the detection light beam for external object detects, wherein the detection The wavelength of light beam is different from the wavelength of the backlight beam.The detection mould group is located at below the display device, for penetrating The display device receives the detection light beam of the external object transmission, and it is corresponding for converting the detection light beam received Electric signal.

In some embodiments, the detection light beam includes near infrared light.

In some embodiments, the light source includes the first light-emitting surface and the second light-emitting surface, the backlight light that the light source issues Beam is emitted from first light-emitting surface, and the detection light beam that the light source issues is emitted from second light-emitting surface, and described first goes out Smooth surface is towards the side, and second light-emitting surface is towards the cover sheet.

In some embodiments, first light-emitting surface and second light-emitting surface are plane, the first light-emitting surface tool There is the first normal, second light-emitting surface has the second normal, the angle model between first normal and second normal Enclose is 70 degree to 110 degree.

In some embodiments, the angle between first normal and second normal is 90 degree.

In some embodiments, first light-emitting surface is parallel to the side, and second light-emitting surface is parallel to the guarantor Protecting cover plate.

In some embodiments, the light source includes luminescence unit and backlight circuit plate, and the luminescence unit is located at the back It is electrically connected on optical circuit board and with the backlight circuit plate, the luminescence unit includes that first light-emitting surface goes out with described second Smooth surface, for being emitted institute through first light-emitting surface outgoing backlight beam, and for penetrating second light-emitting surface State detection light beam.

In some embodiments, the luminescence unit is located at side of the backlight circuit backboard to the cover sheet, institute The second light-emitting surface is stated in face of the backlight circuit plate.

In some embodiments, second light-emitting surface is close to the backlight circuit plate.

In some embodiments, aperture is provided on the backlight circuit plate, the aperture is used to transmit the detection light beam, Alternatively, the backlight circuit plate is transmissive to the detection light beam.

In some embodiments, the backlight module further comprises shading glue, and the shading glue is formed in the backlight electricity Road backboard is to the side of the luminescence unit, for intercepting visible light beam.

In some embodiments, aperture is provided on the shading glue, the aperture is used to penetrate the detection light beam, or, The shading glue is transmissive to the detection light beam.

In some embodiments, the luminescence unit includes that the first luminous bare die being integrated in an encapsulation and second shine Bare die, wherein the first luminous bare die is for emitting backlight beam, and the second luminous bare die is for emitting detection light beam.

In some embodiments, the luminescence unit includes the first luminescence unit and the second luminescence unit, wherein described first Luminescence unit for emitting backlight beam, second luminescence unit for emitting detection light beam, first luminescence unit with Second luminescence unit is respectively the luminescence chip of individual packages.

In some embodiments, first luminescence unit and second luminescence unit are respectively positioned on the backlight circuit backboard To the side of the cover sheet, or, first luminescence unit is located at the backlight circuit backboard to the cover sheet Side, second luminescence unit are located at the backlight circuit plate face to the side of the cover sheet.

In some embodiments, first luminescence unit includes first light-emitting surface and upper surface, the upper surface with The backlight circuit plate is close to setting.

In some embodiments, when second luminescence unit is located at the backlight circuit backboard to the one of the cover sheet When side, second luminescence unit includes second light-emitting surface, and second light-emitting surface is close to set with the backlight circuit plate It sets；Or, when second luminescence unit is located at side of the backlight circuit plate face to the cover sheet, second hair Light unit includes second light-emitting surface and the lower surface opposite with second light-emitting surface, and the lower surface is tightly attached to the back On optical circuit board.

In some embodiments, when first luminescence unit is located at the backlight circuit backboard to the one of the cover sheet Side, and when second luminescence unit is located at side of the backlight circuit plate face to the cover sheet, the backlight circuit Plate has convex shape structure, and the backlight circuit plate includes the main part of strip and extends protrusion by the intermediate of the main part Extension, first luminescence unit is arranged below the main part, and second luminescence unit is arranged in the extension Above portion, the extension extends to the direction of the side far from the light guide plate.

In some embodiments, first luminescence unit and second luminescence unit are respectively positioned on the backlight circuit backboard To the side of the cover sheet, first luminescence unit and second luminescence unit are arranged in a column, second hair Light unit is arranged alternately with first luminescence unit, or, second luminescence unit is located at least in the interposition of a column It sets.

In some embodiments, the backlight module further comprises shading glue, for intercepting visible light beam；When described first When luminescence unit and second luminescence unit are respectively positioned on side of the backlight circuit backboard to the cover sheet, the screening Optical cement is formed in the backlight circuit backboard to the side of the luminescence unit；Or, described in being located at when first luminescence unit Backlight circuit backboard is to the side of the cover sheet, and second luminescence unit is located at the backlight circuit plate face to described When the side of cover sheet, the shading glue is formed in second luminescence unit and the backlight circuit backboard to described On the side of one luminescence unit.

In some embodiments, the detection mould group has field of view, the detection mould on the top surface of the light guide plate Group is received to from the field of view transmitted through the detection light beam come；The backlight module further comprises photoresist diaphragm, For penetrating backlight beam and intercepting detection light beam, the photoresist diaphragm is located at the top of the exterior domain of the field of view.

In some embodiments, the display panel includes the second base that first substrate and the first substrate are oppositely arranged Plate and the liquid crystal layer between the first substrate and the second substrate, relatively described second base of the first substrate The part that the edge of plate extends protrusion is the terminal region.

In some embodiments, the terminal region is located at the surface of the light source, and the detection light beam penetrates the terminal It is pierced by after area from the cover sheet.

In some embodiments, the display panel further includes panel circuit plate, shown in the connection of shown panel circuit plate part Terminal region and capable of bending extends to below the backlight module, and aperture is provided on the panel circuit plate, and the aperture is used In penetrating the detection light beam, or, the panel circuit plate is transmissive to the detection light beam.

In some embodiments, when the backlight circuit plate have convex shape structure, and second luminescence unit setting exist When above the extension, second luminescence unit is faced with the cover sheet beyond the part of the terminal region.

In some embodiments, the side of the terminal region back to the cover sheet is formed with anti-reflective film, the anti-reflective Film is penetrated for through detecting and light beam and the detection light beam is prevented to be reflected.

In some embodiments, defining display device region for displaying images is display area, the display dress The region that image can not be shown around the display area set is non-display area；The detection mould group is used to penetrate the viewing area Domain receives the detection light beam transmitted by the external object, and the biology of external object is obtained according to the electric signal after conversion Characteristic information.

The beneficial effects of the present application are as follows the light source by backlight module provides backlight beam and detection light beam simultaneously, use The additional display area space of display device or non-display area are not take up in the light source of the detection light beam of emitting biological feature detection Domain space.The application can be realized the lower biological characteristic detection of screen, and does not influence display device and normally show.Further, institute It states light source and can be transmitting backlight beam and detect the different luminescence chips of light beam and be integrated in an encapsulation, or using existing Some display device screen down space settings are respectively used to transmitting backlight beam and detect the luminescence chip of light beam.The application biology is special Levying detection system has biological characteristic detection effect and preferable user experience under preferable shield.

Detailed description of the invention

Fig. 1 is the stereoscopic schematic diagram of one embodiment of the application biological characteristic detection system；

Fig. 2 is the partial sectional schematic view of biological characteristic detection system shown in Fig. 1；

Fig. 3 is the partial sectional schematic view of the change embodiment of biological characteristic detection system shown in Fig. 1；

Fig. 4 A- Fig. 4 C is the schematic diagram of the different embodiments of light source shown in Fig. 3；

Fig. 5 is the enlarged schematic partial view of terminal region shown in Fig. 3；

Fig. 6 is the partial sectional schematic view of biological characteristic detection system shown in Fig. 1；

Fig. 7 is the schematic diagram of the change embodiment of light source shown in Fig. 6；

Fig. 8 is the partial sectional schematic view of one embodiment of the application biological characteristic detection system；

Fig. 9 A- Fig. 9 B is the schematic diagram of light source shown in Fig. 8；

Figure 10 is the partial sectional schematic view of one embodiment of the application biological characteristic detection system；

Figure 11 is the partial sectional schematic view of one embodiment of the application biological characteristic detection system；

Figure 12 is the partial sectional schematic view of one embodiment of the application biological characteristic detection system.

Specific embodiment

In the specific descriptions to the embodiment of the present application, it should be understood that when substrate, frame, piece, layer or pattern are referred to as When "above" or "below" another substrate, another piece, another layer or another pattern, it can " directly " or " indirectly " On another substrate, another piece, another layer or another pattern, or there may also be one or more middle layers. For purposes of clarity, it each of can exaggerate, omit or schematically show Figure of description the thickness of layer and big It is small.In addition, the size of element and non-fully reflecting actual size in attached drawing.

Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.It is based on Embodiment in the application, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall in the protection scope of this application.

Further, described feature, structure can be incorporated in one or more embodiment party in any suitable manner In formula.In the following description, many details are provided so as to fully understand presently filed embodiment.However, this Field technical staff will be appreciated that even if without one or more in the specific detail, or using other structures, group Member etc. can also practice the technical solution of the application.In other cases, it is not shown in detail or describes known features or operation To avoid the emphasis of fuzzy the application.

Referring to Fig. 1, in one embodiment of the application biological characteristic detection system 1, the biological characteristic detection system 1 Including display device 10.The display device 10 has display area for displaying images (area Active Area, AA) and wraps Enclose the non-display area of the display area.Ground is changed, the display area and non-display area there can also be other shapes Shape or positional relationship, such as, but not limited to, the back side, and/or front of the display device 10, and/or side all have display Region and non-display area；Or the non-display area does not surround the display area.The embodiment of the present application is with no restriction.

Referring to Fig. 2, be one embodiment according to the application, the line B-B along Fig. 1 of biological characteristic detection system 1 The partial sectional schematic view in direction.The display device 10 includes backlight module 11, the display panel set gradually from the bottom to top 12 and cover sheet 13.The backlight module 11 includes light source 16 and light guide plate 113, and the light source 16 is arranged in the display surface 12 lower section of plate, the light guide plate 113 are arranged below the display panel 12.The light guide plate 113 is arranged in the light source 16 Side.The light source 16 and the light guide plate 113 are in Fig. 2 generally within same layer on L-R direction.The cover sheet The 13 coverings display panel 12 and backlight module 11.The cover sheet 13 is made of transparent material, such as, but not limited to: Glass or sapphire.

The light source 16 is used to emit backlight beam 100 to first direction and emits detection light beam 101 to second direction.Institute Stating has preset space angle range between first direction and second direction.Optionally, the preset space angle range Including an angle of 90 degrees, acute angle, obtuse angle.In the present embodiment, the first direction is, for example, the side of the 16 face light guide plate 113 of light source Side, the second direction is, for example, the top of the light source 16.It should be noted that the first direction, second direction can be with Be include multiple and different angles direction set, and be not limited to the direction of some special angle.

Optionally, in some embodiments, first light-emitting surface of the light source 16 with the first normal direction and have the Second light-emitting surface of two normal directions.There is predetermined angle between first normal direction and the second normal direction, described the One light-emitting surface is for being emitted backlight beam 100, and second light-emitting surface is for being emitted detection light beam 101.The predetermined angle is An angle of 90 degrees, acute angle, obtuse angle.

In the present embodiment, the backlight beam 100 enters the light guide plate 113 simultaneously after issuing from the side of the light source 16 Enter the display panel 12 after the outgoing of the top of the light guide plate 113.The backlight beam 100 is described aobvious for being supplied to Show that panel 12 executes image and shows.The detection light beam 101 can be reached through the display panel 12, the cover sheet 13 In one external object 1000, biological characteristic of the detection light beam 101 for external object 1000 is detected.

The biological characteristic detection system 1 further includes the detection mould group 19 being arranged in below the display device 10.It is described Imaging beam 102 can be received through the display area of the display device 10 by detecting mould group 19.The imaging beam 102 is outer The detection light beam 101 that portion's object 100 reflects, and/or, the detection light beam 101 that external object 1000 transmits.Wherein, The transmission includes that external object 1000 will be transmitted into its internal detection light beam 101 as imaging beam 102.It is described Imaging beam 102 has the biological information of external object 1000.

The display panel 12 and cover sheet 13 have preferable penetrate to the detection light beam 101, imaging beam 102 Rate.It should be noted that the preferable transmitance is outside the imaging beam 102 that the relatively described detection mould group 19 receives is used for For optical imaging effect when the biological characteristic detection of portion's object 1000.12 pairs of detection 101 Hes of light beam of the display panel The transmitance of imaging beam 102 such as, but not limited to about 50%, 13 pairs of detection light beams 101 of the cover sheet and imaging The transmitance of beam 102 is such as, but not limited to greater than 90%.

Optionally, the backlight module 11, display panel 12, can have optical cement or optical film between cover sheet 13 (being not shown in Fig. 2).

In some embodiments, the backlight module 11 further includes the iron positioned at 112 lower section of the light source 16 and light guide plate Shell (is not shown) in Fig. 2, and the iron-clad has aperture, and the aperture of the corresponding iron-clad of detection mould group 19 is arranged in the back 11 lower section of optical mode group.

In some embodiments, the backlight module 11 further includes the glue frame (figure for surrounding the light source 16 and light guide plate 112 It is not shown in 2), shading glue (being not shown in Fig. 2) is set above the glue frame and light source 16.The shading glue can obstruct described Backlight beam 100 or other visible lights, and the shading glue has the aperture or described penetrated for the detection light beam 101 Shading glue is made using the material for being transmissive to the detection light beam 101 and the barrier backlight beam 100.

In the present embodiment, the detection mould group 19 receives the imaging beam 102 through the display device 10.It is described at Biological information as light beam 102 with external object 1000, so that passing through the detection mould group 19 acquires external object 1000 biological information, the biological characteristic detection system 1 are able to detect the biological information of external object 1000.

Backlight beam 100 and detection light beam 101, the light source 16 are provided simultaneously by the light source 16 of the backlight module 11 It is not take up the additional display area space of display device or non-display area domain space.The application can be realized the lower biological characteristic inspection of screen It surveys, and does not influence display device 10 and normally show.Further, the light source 16 can be transmitting backlight beam 100 and inspection The different luminescence chips (bare die) for surveying light beam 101 are integrated in an encapsulation, or utilize the screen of existing display device 10 Down space setting is respectively used to transmitting backlight beam 100 and detects the luminescence chip of light beam 101.The application biological characteristic detection system System and its display device, backlight module have biological characteristic detection effect and preferable user experience under preferable shield.

In the present embodiment, the backlight beam 100 is the light beam of different wave length with the detection light beam 101, wherein described Backlight beam 100 is visible light, for example, white light.The detection light beam 101 and imaging beam 102 are black light, it is described not Visible light includes near infrared light.The detection light beam 101 and imaging beam 102 are, for example, near-infrared light beam.

Schematically, the visible light includes the light beam that wave-length coverage is 400~700nm (nanometer).The near infrared light The light beam for being 800~1000nm including wave-length coverage.The detection light beam 101 and imaging beam 102 are, for example, that wavelength is 850nm Or the light beam of 940nm.

Correspondingly, the shading glue for example but is not limited to infrared printing ink material and is made, for blocking through near infrared light Cut visible light.

Referring to Fig. 3, being the partial sectional schematic view of another embodiment of the biological characteristic detection system 1.The life Object feature detection system 1 includes display device 10 and the detection mould group 19 being arranged in below the display device 10.The detection Mould group 19 is used to receive imaging beam 102 through the display device 10.The imaging beam 102 is connect by the detection mould group 19 Corresponding electric signal is converted to after receipts, such as: the viewdata signal of the biological information including external object 1000.It is described Imaging beam 102 and the detection mould group 19 can be used in the biological characteristic detection of external object 1000.

The display device 10 includes backlight module 11, display panel 12 and the cover sheet set gradually from the bottom to top 13.The display panel 12 is shown for image, and can provide the user with contact or contactless human-computer interaction interface. The backlight module 11 is used to provide the backlight beam needed for image show for the display panel 12, and to external object 1000 transmitting detection light beams 101.The detection light beam 101 can be used in the biological characteristic detection of external object 1000.It is described at As light beam 102 includes but is not limited to: the detection light beam 101 that external object 1000 reflects, and/or, external object 1000 is saturating The detection light beam 101 penetrated.Wherein, the transmission include external object 1000 will enter its internal detection light beam as at As light beam 102 transmits.102 band of imaging beam is described the biological information of external object 1000.

It should be noted that biological characteristic detection described herein includes but is not limited to the sense to external object 1000 The processes such as survey, information collection, characteristic comparison, recognition result verifying, the life described herein for external object 1000 The detection of object feature refers at least being implemented for or be used to help to realize biological characteristic detection.

The backlight module 11 includes iron-clad 111, reflector plate 112, the light guide plate 113, optics set gradually from the bottom to top Membrane layer 114 and be arranged in 113 side of light guide plate light source 16, be located at the light source 16 far from the light guide plate 113 The glue frame 115 of side and the glue frame 115, the shading glue 116 on light source 16 are set.

The light source 16 is for emitting the detection light beam 101 upwards and emitting the backlight beam 100 to side.Institute Backlight beam 100 is stated to enter the light guide plate 113 from 16 side of light source and be emitted from the top of the light guide plate 113 laggard Enter the display panel 12.The backlight beam 100 is used to be supplied to the execution of display panel 12 image and shows, the detection Light beam 101 can reach in an external object 1000 through the display panel 12.The detection light beam 101 is for external right As 1000 biological characteristic detects.

It is the part isometric schematic diagram of the light source 16 please refer to Fig. 4 A and Fig. 4 B, Fig. 4 A.Fig. 4 B is the light source 16 along Fig. 1 line C-C partial sectional schematic view.The light source 16 includes luminescence unit 161 and backlight circuit plate 162.It is described Luminescence unit 161 such as, but not limited to weld or be fitted on the backlight circuit plate 162 and with the backlight circuit plate 162 Electrical connection.The backlight circuit plate 162 includes but is not limited to flexible circuit board or printed circuit board.

The luminescence unit 161 includes the first light-emitting surface 1611 and the second light-emitting surface 1612.As shown in Figure 4 A and 4 B shown in FIG., institute The side that the first light-emitting surface 1611 is located at the luminescence unit 161 is stated, first light-emitting surface 1611 is used for the luminous list The side of member 161 is emitted the backlight beam 100.Second light-emitting surface 1612 is located at the upper surface of described luminescence unit 161, institute The second light-emitting surface 1612 is stated for being emitted the detection light beam 101 to the top of the luminescence unit 161.Second light-emitting surface 1612 are close to setting with the lower surface of the backlight circuit plate 162.

Optionally, Fig. 4 C is please referred to, the second light-emitting surface 1612 of the luminescence unit 161 includes leg 1613, the hair Light unit 161 is welded on 162 lower surface of backlight circuit plate by leg 1613, and the detection light beam 101 is from the weldering The gap of foot 1613 penetrates the backlight circuit plate 162.

Optionally, the backlight circuit plate 162 includes conducting wire and flexible parent metal.In some embodiments, described to lead Electric line and flexible parent metal are transmissive to the detection light beam 101, and such as, but not limited to, the wire line and flexible parent metal are adopted It is made of transparent material.Optionally, in some embodiments, the backlight circuit plate 162 has and second light-emitting surface 1612 Corresponding aperture, the detection light beam 101 penetrate the backlight circuit plate 162 by the aperture.Optionally, in some implementations In example, by Reasonable Arrangement conducting wire, so that the conducting wire avoids position corresponding with second light-emitting surface 1612, The flexible parent metal is transmissive to the detection light beam 101.

The light guide plate 113 includes side (not labeled) and top surface (not labeled).First light-emitting surface, the 1611 face institute State the side of light guide plate 113, the backlight beam 100 enters from the side of the light guide plate 113 and from the light guide plate 113 It projects top surface；It is aobvious for image that the backlight beam 100 is provided to the display panel 12 above the backlight module 11 Show, the detection light beam 101 can reach external object through the display panel 12, and the detection light beam 101 is for outside The biological characteristic of object 100 detects.Optionally, the luminescence unit 161 at least corresponds to the centre of the side of the light guide plate 113 The both ends of the part setting side that perhaps luminescence unit 161 at least corresponds to the light guide plate 113 are arranged or the hair The whole region setting of the side of the corresponding light guide plate 113 of light unit 161.

In the present embodiment, the height of first light-emitting surface 1611 is greater than thickness of the light guide plate 113 at top surface.For The utilization rate of the raising backlight beam 100, (or the light guide plate 113 is in side for the height of the side of the light guide plate 113 The thickness at place) it is greater than thickness of the light guide plate 113 at top surface.The profile height of the light guide plate 113 and described first goes out The height of smooth surface 1611 is of substantially equal.There is slope (not labeled) between the side and top surface of the light guide plate 113, it is described oblique Slope surface is gradually reduced the thickness of the light guide plate 113.Since the thickness of the corresponding display area of the light guide plate 113 is smaller, Therefore 10 entirety of display device can accomplish relatively thin.

It should be noted that the present embodiment is only to schematically describe, and in other embodiments, the light guide plate 113 and light source 16 can have other structures and setting, such as the top surface of the light guide plate 113 is connected with side and has consistent thickness.This Application embodiment is not construed as limiting this.

The light guide plate 113 further includes the bottom surface of reflector plate 112 described in face, the bottom surface and the light guide plate 113 Top surface is opposite to be arranged in parallel.The backlight beam 100 that the reflector plate 112 is used to be emitted from the bottom surface of the light guide plate 113 is anti- It is emitted back towards in the light guide plate 113.The optical diaphragm layer 114 is for spreading and backlight beam 100 described in blast.The backlight Light beam 100 enters the display panel 12 after penetrating the optical diaphragm layer 114.The reflector plate 112, light guide plate 113 and light It learns membrane layer 114 and is transmissive to the imaging beam 102.

In the present embodiment, the optical diaphragm layer 114 is arranged on the top surface of the light guide plate 113, height and described 116 flush of shading glue.The covering of shading glue 116 is arranged in the glue frame 115 and backlight circuit plate 162.The glue frame 115 are arranged in side of the light source 16 far from the light guide plate 113, and the glue frame 115 is arranged on the iron-clad 111.Institute Stating glue frame 115 has barrier action to the backlight beam 100, detection light beam 101, and the barrier to light beam includes but unlimited In absorption and/or reflection to light beam.The shading glue 116 obstructs the backlight beam 100 and the transmission detection light beam 101。

The iron-clad 111 has aperture 1111, and the setting of aperture 1111 of the corresponding iron-clad 111 of detection mould group 19 exists 11 lower section of backlight module.The imaging beam 102 enters the detection mould group 19 through the aperture 1111.

The display panel 12 includes first substrate 121, liquid crystal layer 122 and the second substrate set gradually from the bottom to top 123.Schematically, the first substrate 121, the second substrate 123 can be glass substrate, plastic base, semiconductor substrate, gold Belong to substrate etc..The display panel 12 for example but is not limited to liquid crystal display panel.

The first substrate 121 is also known as array substrate comprising the film crystal that multiple thin film transistor (TFT)s (TFT) are constituted Pipe array and fine scanning line (gate line) and multiple columns of data lines (data line).The second substrate 123 is also known as Filter sheet base plate or color membrane substrates comprising the optical filter of multiple red arranged in array, green and blue.

The first substrate 121 has the outwardly extending terminal region 1211 in edge of the relatively described the second substrate 123.It is described Portion of terminal 1121 is located in the non-display area of the display device 10.

The display panel 12 further includes the panel circuit plate 124 that part is arranged on the terminal region 1211.The face Plate circuit board 124 is flexible circuit board, extends to 11 lower section of backlight module from outward bending on the terminal region 1211. Optionally, the panel circuit plate 124 is electrically connected the drive circuit chip of the display panel 12.

In the present embodiment, the display panel 12 further includes the integrated circuit 125 on the terminal region 1211.It is described Integrated circuit 125 is arranged between the panel circuit plate 124 and the second substrate 123.A part of the panel circuit plate 124 Connect the marginal portion of the terminal region 1211.The integrated circuit 125 is arranged by COG (chip on glass) technique On the terminal region 1211.Optionally, the panel circuit plate 124 and terminal region 1211 pass through conductive glue connection, described integrated Circuit 125 and the terminal region 1211 pass through conductive glue connection.The conducting resinl is such as, but not limited to, anisotropic conductive adhesive paste ACF.

Optionally, in some embodiments, the integrated circuit 125 can be set by COF (chip on film) technique It sets in the panel circuit plate 124 along on extension.At this point, the collection is arranged due to not needing in the terminal region 1211 At circuit 125, therefore the terminal region 125 can have lesser width, thus the display device 10 can have it is relatively narrow Non-display area, such as viewed from front, the display device 10 has relatively narrow frame.

It is the enlarged schematic partial view of terminal region 1211 in Fig. 3 please refer to Fig. 5.The panel circuit plate 124 and institute The width D 1 for the part that the edge of terminal region 1211 is connected is about 1 millimeter.The width of the integrated circuit 124 is about 0.8 millimeter~1 millimeter.Width D 3 of the terminal region 1211 between integrated circuit 125 and the second substrate 123 is about 2 millis Rice.The horizontal distance D4 at 1211 edge of 13 edge of cover sheet and the terminal region for example but not limits to about 3 millimeters ~4 millimeters.The width D 5 of the backlight circuit plate 162 is about 2 millimeters.

In the present embodiment, shown detection light beam 101 is through the terminal between the integrated circuit 125 and the second substrate 123 Cover sheet 13 described in 1211 directive of area.Specifically, the luminescence unit 161 is emitted the detection light from the second light-emitting surface 1612 Beam 101.The detection light beam 101 successively through the backlight circuit plate 162, the shading glue 116, the terminal region 1211, The cover sheet 13 reaches the outside or outer surface of the display device 10.In the present embodiment, the detection light beam 101 is reached The external object 1000 of 13 outer surface of cover sheet, the detection light beam 101 enter external object 1000 and example occur Such as, but not limited to, scatters, and/or reflect, and/or reflect.External object 1000 will enter its internal 101 conduct of detection light beam Imaging beam 102 transmits from the display area.The imaging beam 102 successively penetrates the cover sheet 13, shows Show that panel 12, backlight module 11 reach the detection mould group 19.

In the present embodiment, the detection light beam 101 reaches external object through the non-display area of the display device 10 1000, and received in the display area of the display device 10 by the detection mould group 19.

Optionally, in some embodiments, the detection light beam 101 can penetrate the display area of the display device 10 Reach external object 1000.

Optionally, in some embodiments, the imaging beam 102 can be at least partially through the display device Non-display area reaches the detection mould group 19.

Optionally, in some embodiments, the detection mould group 19 is at least partially disposed in non-display area.

Referring to Fig. 6, being the partial sectional schematic view of a change embodiment of biological characteristic detection system shown in Fig. 31. As shown in fig. 6, in the present embodiment, the detection connection of the light beam 101 from the panel circuit plate 124 and the terminal region 1211 Place penetrates and projects.Specifically, the luminescence unit 161 is emitted the detection light beam 101, the inspection from the second light-emitting surface 1612 It surveys light beam 101 and successively penetrates the backlight circuit plate 162, the shading glue 116, the terminal region 1211, the panel circuit Plate 124, the cover sheet 13 reach the outside or outer surface of the display device 10.

Optionally, in some embodiments, the backlight circuit plate 162, the shading glue 116, which have, penetrates the detection The aperture of light beam 101 is made using the material for being transmissive to the detection light beam 101.

Optionally, in some embodiments, the backlight circuit plate 162 and panel circuit plate 124 have conducting wire and Flexible parent metal, the flexible parent metal transmit the detection light beam 101.The detection light beam 102 is through between the conducting wire Flexible parent metal to penetrate the backlight circuit plate 162 and panel circuit plate 124.

Optionally, in some embodiments, the terminal region 1211 has conducting wire and substrate, the detection light beam 102 penetrate the substrate between the conducting wire of the terminal region 1211 to penetrate the terminal region 1211.

It should be noted that the detection light beam 101 can also be from the integrated circuit in the application other embodiments It is penetrated at 125.The backlight circuit plate 162, the shading glue 116, the terminal region 1211, the panel circuit plate 124, institute Different settings can also be had so that the detection light beam 101 penetrates by stating cover sheet 13.For example, the terminal region 1211, panel Circuit board 124 also can have the aperture penetrated for the detection light beam 101.The embodiment of the present application is not construed as limiting this.

Referring to Fig. 7, being the schematic diagram of a change embodiment of light source 16 shown in Fig. 3.The light source 26 can be used for It is used to replace light source 16 in herein described embodiment or change embodiment.The light source 26 includes backlight circuit plate 262, the One luminescence unit 263 and the second luminescence unit 264.First luminescence unit 263 and the second luminescence unit 264 are arranged described 262 lower surface of backlight circuit plate.First luminescence unit 263 includes the first light-emitting surface 2611 positioned at its side, and described the One light-emitting surface 2611 is used to be emitted backlight beam 100 to side.Second luminescence unit 264 includes positioned at the second of its top surface Light-emitting surface 2612, second light-emitting surface 2612 is for outgoing detection light beam 101 upwards.

In some embodiments, first luminescence unit 263 and the second luminescence unit 264 form a line, and described Two luminescence units 264 are located at least in the middle position of the column.Optionally, first luminescence unit 263 and second is luminous single Member 264 is successively arranged alternately, and/or, first luminescence unit 263 and at least partly continuous setting of the second luminescence unit 264. First luminescence unit 263 is for emitting the backlight beam 100, and second luminescence unit 264 is for emitting the inspection Light beam 101 is surveyed, first luminescence unit 263 includes the first light-emitting surface of light guide plate described in face, second luminescence unit 264 include the second light-emitting surface 2612 upward, and first light-emitting surface 2611 is for being emitted the backlight beam 100, institute State the second light-emitting surface 2612 has corresponding described second to go out light for being emitted the detection light beam 101, the backlight circuit plate 262 The aperture in face 2612, or the material for being transmissive to the detection light beam and the barrier backlight beam 100 is used to be made, or Detection light beam 101 described in person is through the gap between the wire line of the backlight circuit plate 262 to through the backlight electricity Road plate 262.

In the present embodiment, the backlight beam 200 is visible light, for example, white light.The detection light beam 201 and imaging Beam 202 is black light, and the black light includes near infrared light.The detection light beam 201 and imaging beam 202 are, for example, close Infrared beam.

Schematically, the visible light includes the light beam that wave-length coverage is 400~700nm (nanometer).The near infrared light The light beam for being 800~1000nm including wave-length coverage.The detection light beam 201 and imaging beam 202 are, for example, that wavelength is 850nm Or the light beam of 940nm.

Referring to Fig. 8, biological characteristic detection system 3 includes display device 30 and setting in one embodiment of the application Detection mould group 39 below display device 30.The detection mould group 39 can be received through the display device 30 from outside The imaging beam 302 of object 1000, the imaging beam 302 can be used in the biological characteristic detection of external object 1000.

Backlight module 31 that the display device 30 is set gradually from the bottom to top, display panel 32, cover sheet 33.It is described Backlight module 31 includes successively reflector plate 312, light guide plate 313 and optical diaphragm layer 314 from the bottom to top.The backlight module 31 is also Light source 36 including 313 side of light guide plate is arranged in.It is showing for light source 36 shown in Fig. 8 please refer to Fig. 9 A and Fig. 9 B It is intended to.Wherein, Fig. 9 B is the diagrammatic cross-section looked from left to right in Fig. 8.

Shown light source 36 includes the first luminescence unit 363, the second luminescence unit 364 and backlight circuit plate 362.The backlight Circuit board 362 has convex shape structure.The main part (not labeled) of the backlight circuit plate 362 including strip and by the master The intermediate extension (not labeled) for extending protrusion in body portion.First luminescence unit 363 is arranged below the main part, institute The second luminescence unit 364 is stated to be arranged above the extension.The extension prolongs to the direction far from the light guide plate 313 It stretches.

First luminescence unit 363 includes connected upper surface (not labeled) and the first light-emitting surface 3611, and described first The upper surface of luminescence unit 363 connects the main body lower surface of the backlight circuit plate 362.First luminescence unit 363 is used The side Yu Xiangqi spatial emission backlight beam 100, the backlight beam 100 are emitted from first light-emitting surface 3611.

Second luminescence unit 364 includes opposite lower surface (not labeled) and the second light-emitting surface 3612.Described second The lower surface of luminescence unit 364 connects the extension upper surface of the backlight circuit plate 362.Second luminescence unit 364 is used Yu Xiangqi upper space transmitting detection light beam 301, the detection light beam 301 are emitted from second light-emitting surface 3612.

The backlight circuit plate 362 can be flexible circuit board comprising conducting wire and flexible parent metal.The flexibility base Material is transmissive to the detection light beam 301.The detection light beam 301 can penetrate the flexible parent metal between the conducting wire, To penetrate the backlight circuit plate.

The light guide plate 313 includes side (not labeled) and top surface (not labeled).First light-emitting surface, the 3611 face institute State the side of light guide plate 313, the backlight beam 300 enters from the side of the light guide plate 313 and from the light guide plate 313 It projects top surface.It is aobvious for image that the backlight beam 300 is provided to the display panel 32 above the backlight module 31 Show.The detection light beam 301 can reach external object 1000 through the display panel 32, and the detection light beam 301 is used for The biological characteristic of external object 1000 detects.

Optionally, in some embodiments, 363 spaced set of the first luminescence unit, second luminescence unit 364 spaced sets.First luminescence unit 363 forms a line along the direction for the side for being parallel to the light guide plate 313, institute The second luminescence unit 364 is stated to form a line along the direction for the side for being parallel to the light guide plate 313.

Optionally, in some embodiments, following table of first light-emitting surface 3611 perpendicular to the backlight circuit plate 362 Face, second light-emitting surface 3612 are parallel to the upper surface of the backlight circuit plate 362, the upper table of the backlight circuit plate 362 Face and lower surface are arranged in parallel relatively.

It should be noted that the light source 36 can have different structure and set in the application other or change embodiment It sets, such as the backlight circuit plate 362 can have the structures such as rectangle, parallelogram, polygon；Alternatively, first hair Light unit 363 can be located at the upper surface of the backlight circuit plate 362；Alternatively, second luminescence unit 364 can be located at institute State the lower surface etc. of backlight circuit plate 362.The embodiment of the present application is not construed as limiting this.

It should be noted that the present embodiment schematically illustrates the number of the first luminescence unit 363 and the second luminescence unit 364 Amount, but be not the restriction to the quantity of the application the first luminescence unit 363 and the second luminescence unit 364.In other embodiments, The quantity of first luminescence unit 363 and the second luminescence unit 364 can be one or more with actual demand, and the application is implemented This is not construed as limiting in example.

The backlight module 31 further include the backlight circuit plate 362 is set and shading on the second luminescence unit 364 Glue 316.The shading glue 316 obstructs the backlight beam 300 and transmits the detection light beam 301 or the shading glue 316 The aperture of light-emitting surface with correspondence second luminescence unit.The upper table of the shading glue 316 and the backlight circuit plate 362 Setting is close in face and 364 upper surface of the second luminescence unit.

The light guide plate 313 includes the bottom surface of reflector plate 312 described in face, the bottom surface with the top surface is relatively parallel sets It sets, the reflector plate 312 is used to the backlight beam 300 being emitted from the bottom surface of the light guide plate 313 reflecting back into the leaded light In plate 313.The optical diaphragm layer 314 is for spreading and backlight beam described in blast.Schematically, the optical diaphragm layer 314 include diffusion barrier (diffuser film), bright enhancement film (brightness enhancement film), and the diffusion sheet is used In spreading the backlight beam 100, the bright enhancement film is for backlight beam 100 described in blast.

The backlight beam 100 enters the display panel 32 after penetrating the optical diaphragm layer 314.In addition, described anti- It penetrates piece 312, light guide plate 313 and optical diaphragm layer 314 and is transmissive to the imaging beam 302.

Optionally, in some embodiments, the backlight module 31 further includes the iron-clad positioned at 312 lower section of reflector plate (not shown), the iron-clad are used to support and protect the optical module of the backlight module 31, and the iron-clad has aperture, external The imaging beam 302 of the reflection of object 1000 or transmission can be received through the aperture by the detection mould group 39.It is described Aperture described in 39 face of mould group is detected to be arranged below the backlight module 31.

The display panel 32 includes panel layer 329.The panel layer 329, which has, to be extended along bottom edge to outer portion Terminal region 3211.The display panel 32 further includes panel circuit plate 324, and the panel circuit plate 324 is flexible circuit board, institute State that 324 part of panel circuit plate connects the marginal portion of the terminal region 3211 and outward bending extends to the backlight module 31 Lower section.

In the present embodiment, second luminescence unit 364 be located at shown terminal region 3211 side and it is described second hair Light unit 364 is located at the cover sheet 33, panel circuit plate 324, backlight circuit plate 362 and is formed by space.Optionally, In some embodiments, second luminescence unit 364 can be at least partially situated at the lower section of shown terminal region 3211.

The display panel 32 further includes the integrated circuit 325 being arranged on the terminal region 3211.The integrated circuit On 325 terminal region 3211 between the panel circuit plate 324 and panel layer 329.The integrated circuit 325 can be use In the drive circuit chip of the touch control of the panel layer 329.The integrated circuit 325 is arranged by COG technique described On terminal region 3211.

Optionally, in some embodiments, the integrated circuit 325 can be set by COF (chip on film) technique It sets in the panel circuit plate 324 along on extension.At this point, the collection is arranged due to not needing in the terminal region 3211 At circuit 325, therefore the terminal region 325 can have lesser width.

Schematically, the panel layer 329 includes two substrates being oppositely arranged and the liquid crystal layer between two substrates.It can Choosing, the panel layer 329 can be other non-spontaneous light type display panels or light emitting-type display panel, in the embodiment of the present application With no restriction to this.

Compared with prior art, shown light source 36 include the first luminescence unit 363 and the second luminescence unit 364, described first Luminescence unit 363 meets the image of display device 30 for emitting backlight beam 300 and shows needs.Second luminescence unit Display device 30 described in 364 transmitting detection light beams 301 and light transmission reaches in external object 1000, to meet the lower biological forehead of screen Detection light beam needed for detection needs.Moreover, because second luminescence unit 364 and the first luminescence unit 363 are all arranged On the backlight circuit plate 362, second luminescence unit 364 makes full use of 32 He of display panel of the display device 30 The existing space of the non-display area of backlight module 31 not will increase the unreality area size of the display device 30.This Shen Please technical solution can also meet the non-display area further decreased.To which the display device 30 can have higher screen Accounting, and do not need to 33 aperture of display panel 32 and cover sheet, user can obtain preferable visual experience.Therefore, The application biological characteristic detection system 3 has and can preferably realize the lower biological characteristic detection of screen, and the display is transferred accounts to 30 Screen accounting with higher and beautiful visual effect.

Referring to Fig. 10, biological characteristic detection system 4 includes display device 40 and setting in one embodiment of the application Detection mould group 49 below the display device 40.The detection mould group 49 can come from through the display device 40 reception The imaging beam 402 of external object 1000, the imaging beam 402 can be used in the biological characteristic detection of external object 1000. Including but not limited to, the imaging beam 402 that the detection mould group 49 will receive is converted to corresponding biological information Image data, and generate corresponding biometric image.Described image data can be visible images (such as RGB color Image data) or black light image data (such as infrared light or near infrared light image data).Optionally, the detection Light beam 401 and imaging beam 402 can be visible light or black light.The black light includes near infrared light or infrared light.

The biological information includes but is not limited to, fingerprint, iris, face, palmmprint, capillary, heart rate, pulse, Body temperature etc..By detecting and identifying the biological information of external object 1000, the biological characteristic detection system 4 can be used for The image generation of external object 1000, In vivo detection, authentication, as medical instrument auxiliary etc..

In addition, when the biological characteristic detection system 4 can also be by structure light (structured light) or flight Between the optical detection principles such as (time of flight) and mode obtain the two-dimensional signal and/or depth letter of external object 1000 Breath, so obtain external object 1000 two dimension and/or three-dimensional biological information, two dimension and/or three-dimensional coordinate information, Two dimension and/or three-dimensional image information.

Optionally, the detection mould group 49 such as, but not limited to includes optical sensor or optical detector, and setting exists Lens or lenslet on optical sensor.

Backlight module 41 that the display device 40 is set gradually from the bottom to top, display panel 42, cover sheet 43.It is described Display panel 42 is shown for image, and can provide the user with contact or contactless human-computer interaction interface.The back Optical mode group 11 is used to provide image for the display panel 42 and shows required backlight beam, and emits to external object 1000 Detect light beam 401.The detection light beam 401 can be used in the biological characteristic detection of external object 1000.The imaging beam 402 Including but not limited to: the detection light beam 401 that external object 1000 reflects, and/or, the inspection that external object 1000 transmits Survey light beam 401.Wherein, the transmission includes that external object transmits the detection light beam for entering its inside as imaging beam 402 Out.

The backlight module 41 includes successively reflector plate 412, light guide plate 413 and optical diaphragm layer 414 from the bottom to top.It is described Backlight module 41 further includes the light source 46 that 413 side of light guide plate is arranged in.

The light source 46 can have structure identical with light source 16,26,36 in above-described embodiment or its change embodiment. The reflector plate 412 can have structure identical with reflector plate 112,312 in above-described embodiment or its change embodiment.It is described Light guide plate 413 can have structure identical with light guide plate 113,313 in above-described embodiment or its change embodiment.The optics Membrane layer 414 can have structure identical with optical diaphragm layer 114,314 in above-described embodiment or its change embodiment.

The light source 46 includes luminescence unit 461 and backlight circuit plate 462.The welding of luminescence unit 461 is fitted in On the backlight circuit plate 462.The backlight circuit plate 462 includes but is not limited to flexible circuit board or printed circuit board.

The luminescence unit 461 includes the first light-emitting surface (not labeled) and the second light-emitting surface (not labeled).Described first goes out Smooth surface is located at the side of the luminescence unit, and first light-emitting surface is used for described in the outgoing of the side of the luminescence unit 461 Backlight beam 400.Second light-emitting surface is located at the upper surface of described luminescence unit 461, and second light-emitting surface is used for described The top of luminescence unit 461 is emitted the detection light beam 401.The following table of second light-emitting surface and the backlight circuit plate 462 It is close to setting in face.

The light guide plate 413 includes side (not labeled) and top surface (not labeled).It is led described in the first light-emitting surface face The side of tabula rasa 413, the backlight beam 400 enter from the side of the light guide plate 413 and from the top surfaces of the light guide plate 413 It projects.The backlight beam 400 is provided to the display panel 42 above the backlight module and shows for image, described External object can be reached through the display panel 42 by detecting light beam 401, and the detection light beam 401 is used for external object 100 Biological characteristic detection.The side is the incidence surface of the light guide plate 413, and the top surface is the light out of the light guide plate 413 Face.

The backlight module 41 further includes the shading glue 416 being arranged on backlight circuit plate 462.416 energy of shading glue Enough obstructing the backlight beam 400 and transmiting the detection light beam 401 or the shading glue 416 has corresponding described second The aperture of the light-emitting surface of luminescence unit.The upper surface of the shading glue 416 and the backlight circuit plate 462.

Optionally, in some embodiments, the shading glue 416 obstructs the backlight beam 400 or other visible lights.Institute The partial region of luminescence unit 461 described in 416 face of shading glue is transmissive to the detection light beam 401, and the shading glue 416 Other regions obstruct the detection light beam 401.By on the shading glue 416 setting unit be transmissive to the detection light The transmission region of beam 401, and the range of the adjustment transmission region, can control the detection light beam 401 and penetrate the screening Shooting angle after optical cement 416.

The display panel 42 includes lower polarizing film 424, the first substrate 421, liquid crystal layer set gradually from the bottom to top 422, the second substrate 423 and upper polarizer 425.The first substrate 421 is also known as array substrate, and the second substrate 423 is again Referred to as color membrane substrates.There is the first substrate 421 one side edge along the second substrate 423 to extend outwardly the terminal of protrusion Area 4211.The non-display area of the corresponding display device 40 in the terminal region 4211.The second substrate 423, liquid crystal layer 422, upper polarizer 425, lower polarizing film 424 correspond to the display area setting of the display device 40 substantially.

The display panel 42 further includes the panel circuit plate 424 that part connects the terminal region 4211, the panel electricity Plate 424 outward bending in road extends to 41 lower section of backlight module.

The display panel 42 further includes that integrating on the terminal region 4211 is arranged in the neighbouring panel circuit plate 424 Circuit 425.The integrated circuit 425 is arranged on the terminal region 4211 by COG technique.The integrated circuit 425 is for example But it is not limited to touch detection drive circuit chip.

Optionally, the terminal region 4211 includes conducting wire.After the shading glue 416 transmission, the detection light beam 401 penetrate the terminal region 4211 by the gap between the conducting wire of the terminal region 4211, and can be further transmitted through The cover sheet 43 reaches external object 1000.

Optionally, the panel circuit plate 424 includes conducting wire and flexible parent metal, from the shading glue 416 and terminal After area 4211 penetrates, the detection light beam 401 can be penetrated by the gap between the conducting wire of the panel circuit plate 424 The panel circuit plate 424.

It is needed during reaching external object 1000 through excessive since the detection light beam 401 is issued from light source 46 The film layer of a backlight module 41 and display panel 42, such as, but not limited to, the detection light beam 401 are penetrating the terminal region Part detection light beam 401 may be reflected in the terminal region 4211 when 4211.The detection light beam 401 is penetrating the face Part detection light beam 401 may be reflected in the panel circuit plate 424 when plate circuit board 424.The detection light beam 401 exists Part detection light beam 401 may be reflected in cover sheet 43 when through the cover sheet 43.The detection light beam 401 is also Possibly into the display area of the display device 40, so as to be reflected at the upper polarizer 425.

The reflected beams of the detection light beam 401 formed under above various reflection conditions are properly termed as the anti-of detection light beam 401 Blackberry lily disturbs light beam.It may all be received by the display panel 42 and/or backlight module 41 by the detection mould group 49.

Therefore, the reflection interference light beam of the detection light beam 401 part when through the terminal region 4211 in order to prevent Detection light beam 401 is received after the reflection of the terminal region 4211 by the detection mould group 49, and the backlight module 41 can be into one Step includes photoresist diaphragm 418.The photoresist diaphragm 418 is arranged on the shading glue 416.The photoresist diaphragm 418 is for inhaling Receive the detection light beam 401.

The photoresist diaphragm 418 is located at 42 lower section of display panel.Optionally, the photoresist diaphragm 418 is located at described first 421 lower section of substrate, and it is located at 424 lower section of lower polarizing film.Optionally, terminal region described in 418 face of photoresist diaphragm 4211 are arranged below the terminal region 4211, and the photoresist diaphragm 418 is set side by side with the lower polarizing film 424.Optionally, The photoresist diaphragm 418 is at least partially situated at terminal region 4211 described in face and is arranged below the terminal region 4211.

Optionally, in some embodiments, the photoresist diaphragm 418 is at least partially disposed at the display of the display device 40 Region.

Optionally, in some embodiments, the top of the light guide plate 413 of the photoresist diaphragm 418 at least covering part Face.

Optionally, in some embodiments, the shading glue 416 of the photoresist diaphragm 418 at least covering part.

Optionally, in some embodiments, the photoresist diaphragm 418 absorbs the detection light beam and transmits backlight beam 400。

Optionally, in some embodiments, the photoresist diaphragm 418 reflects the detection light beam and transmits backlight beam 400。

Please refer to Figure 11, in a change embodiment of the biological characteristic detection system 4, the photoresist diaphragm 418 covers The top surface of the light guide plate 413 is covered, in other words the display area setting of the corresponding display device 40 of the photoresist diaphragm 418. Wherein, the photoresist diaphragm 418 has opening 4181, and the opening 4181 receives the imaging beam with detected mould group 49 The range for the field of view that 402 field angle is formed on the top surface of the light guide plate 413 is consistent.The field of view be with The detection mould group 49 is the region that surrounds on the top surface of the light guide plate 413 of the field angle detection mould in other words on vertex Field of view of the group 49 on the top surface of the light guide plate 413.

The imaging beam 402 can reach the detection mould group 49 through the opening 4181, and detect light beam 401 Reflection interference light beam then can be absorbed or be reflected described in the photoresist diaphragm 418, therefore the photoresist diaphragm 418 effectively reduces Or the reflection interference light beam of the detection light beam 401 is eliminated to the detection mould group 49 reception imaging beam 402 and carries out light Study the adverse effect of picture.

Please refer to Figure 12, in a change embodiment of the biological characteristic detection system 4, the display panel 42 is also wrapped Include the anti-reflective film 429 being arranged in below the terminal region 4211.The anti-reflective film 429 is for transmiting the detection light beam 401.It is hardly reflected when anti-reflective film 429 described in 401 light transmission of detection light beam, to effectively reduce the inspection Survey the reflection interference light beam of light beam 401.Further alternative, the anti-reflective film 429 also can be set in the shading glue 416 Top can be regarded as a part of the backlight module 41.

Optionally, the display device 40 can include the photoresist diaphragm 418, anti-reflective film 429 simultaneously, can also only wrap Include one of which.The photoresist diaphragm 418, anti-reflective film 429 can also have other settings, such as be arranged in down polaroid 424 Lower section, other embodiments can have different settings, and the application is not construed as limiting this.

In above-described embodiment, the backlight beam 400 is visible light, the such as, but not limited to visible light of 400~700nm. The detection light beam 401 and imaging beam 402 are near-infrared light beam, the such as, but not limited near infrared light of 800~1000nm.

Compared to the prior art, the biological characteristic detection device 4 includes light source 46, and the light source 46 can be sent out to side Backlight beam 400 is penetrated, meets 41 image of display panel and shows needs.Meanwhile the light source 46 can emit inspection upwards Light beam 401 is surveyed, backlight module 41 described in 401 light transmission of detection light beam, display module 40 reach external object 1000.It is external right The imaging beam 402 for reflecting or transmiting as 1000 is received by the detection mould group 49, to realize the screen to external object 1000 Lower biological characteristic detection.The display device 40 is not needed to 43 aperture of display panel 42 or cover sheet, or in viewing area The detection zone that additionally setting is detected for biological characteristic in domain.The biological characteristic detection device 4, which is realized, shields lower biological characteristic Detection does not influence image and shows.Moreover, because the biological characteristic detection device 4 do not need to be arranged additional infrared light supply or its His light source is used to emit detection light beam, to save the space inside the display device 40.Compared with prior art, the life Object feature detection device 4 can reduce the non-display area size of the display device 40, so that the display device 40 has Narrower frame, higher screen accounting and better visual effect.

In some embodiments, the detection mould group 49 or display device 40 can also include processor and memory (figure Do not show), the processor can obtain the two dimension of external object 1000 according to the detection received imaging beam 402 of mould group 49 Information and/or depth information.

Further, biological information data are also stored in advance in the memory, and the processor can be by that will obtain The two-dimensional signal and/or depth information of the external object 1000 obtained and pre-stored biological information data are compared, To realize external object two-dimentional and/or three-dimensional biological characteristic detection and identification, such as, but not limited to: two dimension and/or three-dimensional Fingerprint detection, face detection, iris detection, subcutaneous capillary detection etc..

In herein described embodiment or change embodiment, the detection light beam 501 may include floodlight (Flood Light, the irradiation area that floodlight refers to is relatively wide and the light beam of irradiating angle diverging), pattern light, coded structured light, modulation arteries and veins It rushes one or more in signal.

The detection mould group 49 receives the imaging beam 402 of the transmitting of external object 1000 or reflection and obtains external object 1000 biological information or image information, so be able to detect external object 1000 biological information, and/or externally Portion's object 1000 carries out Image Rendering, and/or detects the space coordinate of external object 1000.Such as, but not limited to: fingerprint detection, Temperature check, heart rate detection, In vivo detection etc..

In above-described embodiment or other embodiments, external object 1000 emits the imaging beam 402 and receives the inspection The area/location for surveying light beam 401 can be different or identical.

It is described detection mould group 49 receive the imaging beam 402 can be used for external object 1000 two dimension and/or three-dimensional Two peacekeepings of the two dimension and/or three-dimensional Image Rendering or external object 1000 of biological characteristic detection or external object 1000/ Three-dimensional space coordinate detection.

In the above embodiments or change embodiment, external object 1000 can be finger, the biological characteristic detection system System 1 is able to carry out fingerprint detection and identification.But the application does not limit to external object 1000, other some changes are implemented In example, external object 1000 can also be face, palm, iris, blood vessel etc., and the biological characteristic detection system 1 can also be used In the face feature of detection external object 1000, iris feature, palmmprint, heart rate, body temperature etc..

It is detected and is identified by the biological characteristic to external object 1000, the biological characteristic detection system 1 can be used In locking or unlocking for device, on-line payment business is verified, the authentication of financial system or public security system, and access control system is led to Multiple products and the application scenarios such as row verifying.

By carrying out the Image Rendering of two dimension or three-dimensional to external object 1000, the biological characteristic detection system 1 may be used also Applied to the application scenarios such as take pictures, image, model.

It is detected by the space coordinate to external object 1000, the biological characteristic detection system 1 applies also for It is related to the application scenarios of direction, distance, speed etc..

Therefore, the biological characteristic detection system 1 can be used in external object two dimension and/or three-dimensional biological characteristic detection And identification, perhaps for external object two dimension and/or three-dimensional Image Rendering or for external object two dimension and/or three-dimensional Space coordinate detection.In herein described embodiment and change embodiment, the external object 1000 includes but is not limited to hand Refer to, fingerprint, eye, iris, veins beneath the skin, face etc..

The biological characteristic detection system 1 can be mobile phone, tablet computer, smartwatch, augmented reality/virtual reality dress It sets, human action detection device, autonomous driving vehicle, smart home device, security device, intelligent robot or its component.

It should be noted that the first light-emitting surface, the second light-emitting surface etc. in the application can be surface existing for entity, It can be imaginary surface.First light-emitting surface, the second light-emitting surface are not necessarily required to physical presence, all should be regarded as belonging to this Shen It please apply creating range.

The light source 46 may include the luminescence unit for emitting light beam, and the luminescence unit is such as, but not limited to LED (light emitting diode)、LD(laser diode)、VCSEL(vertical cavity surface emitting Laser), in one of Mini-LED, Micro-LED or a variety of or LED, LD, VCSEL, Mini-LED, Micro-LED One or more compositions light emitting array.

In the above embodiments of the present application and change embodiment describes the biological characteristic detection system of different situations, and its back The structures such as optical mode group and display panel.It will be understood by those skilled in the art that while shielding lower biological characteristic detection to realize So that display device has higher screen accounting, by the luminescence unit for being used to emit detection light beam and it can be used to emit backlight beam Luminescence unit is integrated in an encapsulation, or different luminescence units is arranged using display device inner space, so that display Device can be realized preferable biological characteristic detection effect under shielding, while have higher screen accounting and visual effect, by the application Embodiment or change embodiment split, combined, deformation, scaling, limited times test etc. changes setting, belong to the application Protection scope.

It should be noted that about light source in above-described embodiment or change embodiment of the application and corresponding change setting (16,26,36,46), backlight module (11,31,41), terminal region (1211,3211,4211), hide display panel (11,31,41) Structure, function, principle and the setting of optical cement (116,316,416), photoresist diaphragm 418, anti-reflective film 429 etc. can also apply In other embodiments disclosed in the present application, thus obtains embodiment and its replacement, deformation, combination, fractionation, extension etc. and belong to this Apply for protection scope.

It should be noted that it will be understood by those skilled in the art that without creative efforts, the application Some or all of embodiment, and the deformation for some or all of embodiment, replacement, change, fractionation, combination, extension Cover Deng being considered as creating thought by the application of the application, belongs to the protection scope of the application.

In the description of this specification, reference term " embodiment ", " certain embodiments ", " schematically implementation What the description of mode ", " example ", " specific example " or " some examples " etc. meant to describe in conjunction with the embodiment or example Particular features, structures, materials, or characteristics are contained at least one embodiment or example of the application.In this specification In, schematic expression of the above terms are not necessarily referring to identical embodiment or example.Moreover, the specific spy of description Sign, structure, material or feature can be combined in any suitable manner in any one or more embodiments or example.

" length " that is likely to occur in present specification, " width ", "upper", "lower", "left", "right", "front", "rear", The orientation or positional relationship of the instructions such as " back side ", " front ", "vertical", "horizontal", " top ", " bottom ", " inside ", " outside " To be based on the orientation or positional relationship shown in the drawings, being merely for convenience of description the embodiment of the present application and simplifying description, rather than The device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot It is interpreted as the limitation to the application.Similar label and letter indicate similar terms in the accompanying drawings, therefore, once a certain Xiang Yi It is defined in attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.Meanwhile retouching in the application In stating, term " first ", " second " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.At this In the description of application, " a variety of " or the meaning of " plurality " is at least two or two, unless otherwise specifically defined.This Shen In description please, it is also necessary to which explanation is unless specifically defined or limited otherwise, " setting ", " installation ", " connection " should be done extensively Reason and good sense solution may be a detachable connection for example, it may be being fixedly connected, or be integrally connected；It can be mechanical connection, It can be electrical connection；It can be and be directly connected to, be also possible to be indirectly connected with by intermediary, can be inside two elements Connection.For the ordinary skill in the art, can be understood with concrete condition above-mentioned term in this application specifically contain Justice.

The above, the only specific embodiment of the application, but the protection scope of the application is not limited thereto, it is any Those familiar with the art within the technical scope of the present application, can easily think of the change or the replacement, and should all contain Lid is within the scope of protection of this application.Term used in claims should not be construed as to apply being limited to this explanation Specific embodiment disclosed in book.Therefore, the protection scope of the application should be based on the protection scope of the described claims.

Claims

1. a kind of biological characteristic detection system characterized by comprising

Display device, comprising:

Cover sheet；

Display panel, positioned at the lower section of the cover board, the display panel is for showing image；With

Backlight module, positioned at the lower section of the display panel, the backlight module includes:

Light guide plate, positioned at the lower section of the display panel, the light guide plate includes the top and bottom being oppositely arranged and is located at Side between the bottom surface and the top surface, the top surface face the display panel；With

Light source, positioned at the side of the light guide plate, the light source is used for the side-emitted backlight beam, the backlight beam Enter inside light guide plate from the side, and be emitted to the display panel from the top surface of the light guide plate, for the display Panel realizes that image display provides visible light beam；The light source is also used to towards transmitting detection light beam, institute above the cover sheet It states detection light beam and penetrates one external object of the cover sheet arrival, biological characteristic of the detection light beam for external object is examined It surveys, wherein the wavelength of the detection light beam is different from the wavelength of the backlight beam；With

Mould group is detected, is located at below the display device, for receiving the external object transmission through the display device The detection light beam, and the detection light beam received is converted as corresponding electric signal.

2. biological characteristic detection system as described in claim 1, which is characterized in that the detection light beam includes near infrared light.

3. biological characteristic detection system as described in claim 1, which is characterized in that the light source includes the first light-emitting surface and the Two light-emitting surfaces, the backlight beam that the light source issues be emitteds from first light-emitting surface, the detection light beam of the light source sending from Second light-emitting surface outgoing, first light-emitting surface is towards the side, and second light-emitting surface is towards the cover sheet.

4. biological characteristic detection system as claimed in claim 3, which is characterized in that first light-emitting surface and described second goes out Smooth surface is plane, and first light-emitting surface has the first normal, and second light-emitting surface has the second normal, first method Angular range between line and second normal is 70 degree to 110 degree.

5. biological characteristic detection system as claimed in claim 4, which is characterized in that first normal and second normal Between angle be 90 degree.

6. biological characteristic detection system as claimed in claim 5, which is characterized in that first light-emitting surface is parallel to the side Face, second light-emitting surface are parallel to the cover sheet.

7. biological characteristic detection system as claimed in claim 3, which is characterized in that the light source includes luminescence unit and backlight Circuit board, the luminescence unit are located on the backlight circuit plate and are electrically connected with the backlight circuit plate, the luminescence unit Including first light-emitting surface and second light-emitting surface, for being emitted the backlight beam through first light-emitting surface, with And for being emitted the detection light beam through second light-emitting surface.

8. biological characteristic detection system as claimed in claim 7, which is characterized in that the luminescence unit is located at the backlight electricity Road backboard is to the side of the cover sheet, and second light-emitting surface is in face of the backlight circuit plate.

9. biological characteristic detection system as claimed in claim 8, which is characterized in that second light-emitting surface is close to the backlight Circuit board.

10. biological characteristic detection system as claimed in claim 8, which is characterized in that be provided with out on the backlight circuit plate Hole, the aperture is for transmiting the detection light beam, alternatively, the backlight circuit plate is transmissive to the detection light beam.

11. biological characteristic detection system as claimed in claim 8, which is characterized in that the backlight module further comprises hiding Optical cement, the shading glue are formed in the backlight circuit backboard to the side of the luminescence unit, for intercepting visible light beam.

12. biological characteristic detection system as claimed in claim 11, which is characterized in that it is provided with aperture on the shading glue, The aperture is used to penetrate the detection light beam, or, the shading glue is transmissive to the detection light beam.

13. biological characteristic detection system as claimed in claim 8, which is characterized in that the luminescence unit includes being integrated in one The first luminous bare die and the second luminous bare die in a encapsulation, wherein the first luminous bare die is for emitting backlight beam, institute State the second luminous bare die for emit detection light beam.

14. biological characteristic detection system as claimed in claim 7, which is characterized in that the luminescence unit includes first luminous Unit and the second luminescence unit, wherein for emitting backlight beam, second luminescence unit is used for first luminescence unit Transmitting detection light beam, first luminescence unit and second luminescence unit are respectively the luminescence chip of individual packages.

15. biological characteristic detection system as claimed in claim 14, which is characterized in that first luminescence unit and described Two luminescence units are respectively positioned on the backlight circuit backboard to the side of the cover sheet, or, first luminescence unit is located at The backlight circuit backboard is located at the backlight circuit plate face to institute to the side of the cover sheet, second luminescence unit State the side of cover sheet.

16. biological characteristic detection system as claimed in claim 15, which is characterized in that first luminescence unit includes described First light-emitting surface and upper surface, the upper surface are close to setting with the backlight circuit plate.

17. biological characteristic detection system as claimed in claim 15, which is characterized in that when second luminescence unit is located at institute When stating side of the backlight circuit backboard to the cover sheet, second luminescence unit includes second light-emitting surface, described Second light-emitting surface is close to setting with the backlight circuit plate；Or, when second luminescence unit is located at the backlight circuit plate face When to the side of the cover sheet, second luminescence unit include second light-emitting surface and with the second light-emitting surface phase Pair lower surface, the lower surface is tightly attached on the backlight circuit plate.

18. biological characteristic detection system as claimed in claim 15, which is characterized in that when first luminescence unit is located at institute Backlight circuit backboard is stated to the side of the cover sheet, and second luminescence unit is located at the backlight circuit plate face to institute When stating the side of cover sheet, the backlight circuit plate has convex shape structure, and the backlight circuit plate includes the master of strip The extension in body portion and the intermediate extension protrusion by the main part, first luminescence unit are arranged under the main part Side, second luminescence unit are arranged above the extension, side of the extension to the side far from the light guide plate To extension.

19. biological characteristic detection system as claimed in claim 15, which is characterized in that first luminescence unit and described Two luminescence units are respectively positioned on the backlight circuit backboard to the side of the cover sheet, first luminescence unit and described the Two luminescence units are arranged in a column, and second luminescence unit is arranged alternately with first luminescence unit, or, second hair Light unit is located at least in the middle position of a column.

20. biological characteristic detection system as claimed in claim 15, which is characterized in that the backlight module further comprises hiding Optical cement, for intercepting visible light beam；When first luminescence unit and second luminescence unit are respectively positioned on the backlight circuit When backboard is to the side of the cover sheet, the shading glue is formed in the backlight circuit backboard to the one of the luminescence unit Side；Or, when first luminescence unit is located at the backlight circuit backboard to the side of the cover sheet, and described second sends out When light unit is located at side of the backlight circuit plate face to the cover sheet, the shading glue is formed in described second and shines Unit and the backlight circuit backboard are on the side of first luminescence unit.

21. biological characteristic detection system as claimed in claim 20, which is characterized in that it is provided with aperture on the shading glue, The aperture is used to penetrate the detection light beam, or, the shading glue is transmissive to the detection light beam.

22. biological characteristic detection system as described in claim 1, which is characterized in that the detection mould group is in the light guide plate Top surface on have field of view, it is described detection mould group to from the field of view transmitted through come detection light beam receive； The backlight module further comprises photoresist diaphragm, for penetrating backlight beam and intercepting detection light beam, photoresist diaphragm position In the top of the exterior domain of the field of view.

23. the biological characteristic detection system as described in any one of claim 1 to 22, which is characterized in that the display surface Plate includes first substrate, the second substrate being oppositely arranged with the first substrate and is located at the first substrate and described the Liquid crystal layer between two substrates, the part that the edge of the relatively described the second substrate of the first substrate extends protrusion is the terminal Area.

24. biological characteristic detection system as claimed in claim 23, which is characterized in that the terminal region is located at the light source Surface, the detection light beam are pierced by from the cover sheet later through the terminal region.

25. biological characteristic detection system as claimed in claim 23, which is characterized in that the display panel further includes panel electricity Road plate, shown panel circuit plate part connect shown terminal region and can bend and extend to below the backlight module, the face Aperture is provided on plate circuit board, the aperture is used to penetrate the detection light beam, or, the panel circuit plate is transmissive to institute State detection light beam.

26. biological characteristic detection system as claimed in claim 23, which is characterized in that when the backlight circuit plate has type Shape structure, and when second luminescence unit is arranged above the extension, second luminescence unit and the protection cap Plate is faced beyond the part of the terminal region.

27. biological characteristic detection system as claimed in claim 23, which is characterized in that the terminal region is back to the protection cap The side of plate is formed with anti-reflective film, and the anti-reflective film is used for through detection light beam and the detection light beam is prevented to carry out instead It penetrates.

28. biological characteristic detection system as described in claim 1, which is characterized in that define the display device for showing The region of image is display area, can not show that the region of image is non-display area around the display area of the display device Domain；The detection mould group is used to receive the detection light beam transmitted by the external object, and root through the display area The biological information of external object is obtained according to the electric signal after conversion.