CN209625233U - Shield lower fingerprint recognition system, liquid crystal display fingerprint identification device and electronic equipment - Google Patents
Shield lower fingerprint recognition system, liquid crystal display fingerprint identification device and electronic equipment Download PDFInfo
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- CN209625233U CN209625233U CN201920099950.2U CN201920099950U CN209625233U CN 209625233 U CN209625233 U CN 209625233U CN 201920099950 U CN201920099950 U CN 201920099950U CN 209625233 U CN209625233 U CN 209625233U
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Abstract
The application provides fingerprint recognition system, liquid crystal display fingerprint identification device and electronic equipment under a kind of screen.Fingerprint recognition includes fingerprint light source, reflector element and fingerprint sensor under the screen；Reflector element and fingerprint sensor are located in display module between liquid crystal display panel and backlight module；The reflecting surface of reflector element is towards liquid crystal display panel, and the photosurface towards fingerprint sensor.The application can realize fingerprint recognition under the screen of LCD.
Description
Technical field
The invention relates to fingerprint recognition systems, liquid crystal display fingerprint under identification technology more particularly to a kind of screen
Identification device and electronic equipment.
Background technique
With the development of electronic technology, the display screen of electronic equipment gradually develops to comprehensive screen, higher and higher screen accounting,
This places the capacitance type fingerprint mould group of current mainstream nowhere, shields lower optical finger print and comes into being.
Currently, for Organic Light Emitting Diode (Organic Light-Emitting Diode, abbreviation OLED) display screen,
The application for shielding lower optical finger print identifying schemes is more and more.Optical finger print scheme under the screen of OLED display screen, passes through utilization
The illumination shooter of the translucency and screen of OLED display screen itself itself detects fingerprint after referring to.
However, for liquid crystal display (Liquid Crystal Display, abbreviation LCD), due to the backlight module of LCD
Translucency is poor, can not form the optical signal detection circuit for shielding lower optical finger print, to cannot achieve the lower optical finger print identification of screen.
Utility model content
The embodiment of the present application provides fingerprint recognition system, liquid crystal display fingerprint identification device and electronics under a kind of screen and sets
Standby, optical finger print identifies under the screen to realize LCD.
The embodiment of the present application provides fingerprint recognition system under a kind of screen, suitable for the liquid with liquid crystal display panel and backlight module
The lower section of brilliant display module is shield lower optical finger print detection, and fingerprint recognition system includes: fingerprint light source, reflection under the screen
Unit and fingerprint sensor；
The fingerprint light source is for providing the light of fingerprint detection, the reflector element and the fingerprint sensor for setting
It sets between the liquid crystal display panel and the backlight module；The reflector element has reflecting surface, and the reflecting surface is described in
Liquid crystal display panel setting to receive light that the fingerprint light source issues after reflection, and passes through the light of the liquid crystal display panel incidence
Line；
Light after reflection is incident to the finger also towards the photosurface of the fingerprint sensor by the reflector element
The photosurface of line sensor；
The fingerprint sensor is used for according to the finger for receiving light detection pressing above the liquid crystal display die set
Fingerprint image, and the field range of the fingerprint sensor is located at the display area of the liquid crystal display die set.
Optionally, fingerprint recognition system under the screen further include: transmission units；
The transmission units will be entered between the liquid crystal display panel and the reflector element by the liquid crystal display panel
The light penetrated is transmitted through the reflecting surface of the reflector element.
Optionally, the reflector element includes: a reflector element；The one of the transmission units is facing towards the liquid crystal surface
Plate setting, to receive the light for passing through the liquid crystal display panel incidence；The another side of the transmission units is towards the reflector element
Reflecting surface setting, the reflecting surface of the reflector element will be transmitted through by the light of the transmission units incidence；It is described
Light after reflection also towards the photosurface of the fingerprint sensor, is incident to the fingerprint and passed by the reflecting surface of reflector element
The photosurface of sensor.
Optionally, the reflector element includes: the first reflector element and the second reflector element；The one side of the transmission units
It is arranged towards the reflecting surface of first reflector element, to receive the light of the first reflector element reflection；The transmission
The reflecting surface of the another side of unit towards second reflector element is arranged, to the light after reflecting first reflector element
Line is transmitted through the reflecting surface of second reflector element；
The reflecting surface of first reflector element is arranged towards the liquid crystal display panel, the reflecting surface of first reflector element
For the transmission units will to be reflexed to by the light of the liquid crystal display panel incidence；
The reflecting surface of second reflector element is arranged towards the transmission units, the reflecting surface of second reflector element
For the photosurface of the fingerprint sensor will to be reflexed to by the light of the transmission units incidence.
Optionally, the fingerprint light source is located at the liquid crystal display panel close to the side of non-display area, alternatively, the fingerprint
Light source is between the liquid crystal display panel and the backlight module.
Optionally, the fingerprint mould group further include: printing board PCB, the PCB are connect with the fingerprint sensor；
The fingerprint light source is located on the PCB.
Optionally, the PCB is hard PCB, or, flexible circuit board FPCB.
Optionally, the fingerprint light source is infrared light supply.
The embodiment of the present application also provides a kind of liquid crystal display fingerprint identification device, comprising: display module and fingerprint mould group；
Wherein, the display module includes liquid crystal display panel and the backlight module that the liquid crystal display panel back side is arranged in；The fingerprint mould group
Including fingerprint light source, reflector element and fingerprint sensor；
The reflector element and the fingerprint sensor are for being arranged between the liquid crystal display panel and the backlight module；
The reflector element has reflecting surface, and the reflecting surface is used to be arranged towards the liquid crystal display panel, to receive the fingerprint light source
The light of sending after reflection, and passes through the light of the liquid crystal display panel incidence；
The reflector element is also used to for the light after reflection being incident to the photosurface of the fingerprint sensor.
Optionally, the fingerprint mould group further include: transmission units；
The transmission units will be entered between the liquid crystal display panel and the reflector element by the liquid crystal display panel
The light penetrated is transmitted through the reflecting surface of the reflector element.
Optionally, the reflector element includes: a reflector element；The one of the transmission units is facing towards the liquid crystal surface
Plate setting, to receive the light for passing through the liquid crystal display panel incidence；The another side of the transmission units is towards the reflector element
Reflecting surface, the reflecting surface of the reflector element will be transmitted through by the light of the transmission units incidence；The reflection is single
Light after reflection is incident to the fingerprint sensor also towards the photosurface of the fingerprint sensor by the reflecting surface of member
Photosurface.
Optionally, the reflector element includes: the first reflector element and the second reflector element；The one side of the transmission units
It is arranged towards the reflecting surface of first reflector element, to receive the light of the first reflector element reflection, the transmission
The reflecting surface of the another side of unit towards second reflector element is arranged, to the light after reflecting first reflector element
Line is transmitted through the reflecting surface of second reflector element；
The reflecting surface of first reflector element is arranged towards the liquid crystal display panel, the reflecting surface of first reflector element
For the transmission units will to be reflexed to by the light of the liquid crystal display panel incidence；
The reflecting surface of second reflector element is arranged towards the transmission units, the reflecting surface of second reflector element
For the photosurface of the fingerprint sensor will to be reflexed to by the light of the transmission units incidence.
Optionally, the fingerprint light source is located at the liquid crystal display panel close to the side of non-display area, alternatively, the fingerprint
Light source is between the liquid crystal display panel and the backlight module.
Optionally, the fingerprint mould group further include: printing board PCB, the PCB are connect with the fingerprint sensor；
The fingerprint light source is located on the PCB.
Optionally, the PCB is hard PCB, or, flexible circuit board FPCB.
Optionally, the fingerprint light source is infrared light supply.
The embodiment of the present application also provides a kind of electronic equipment, comprising: fingerprint recognition system under above-mentioned screen.
The embodiment of the present application provides fingerprint recognition system, liquid crystal display fingerprint identification device and electronics under a kind of screen and sets
It is standby, wherein shielding lower fingerprint recognition system is suitable for the lower section of the liquid crystal display die set with liquid crystal display panel and backlight module to carry out
Shield lower optical finger print detection, fingerprint recognition system includes: fingerprint light source, reflector element and fingerprint sensor, the reflection under the screen
Unit and the fingerprint sensor are for being arranged between the liquid crystal display panel and the backlight module；The reflector element has reflecting surface,
The reflecting surface be used for towards the liquid crystal display panel be arranged, with receive the fingerprint light source sending light after reflection, and pass through the liquid
The light of crystal panel incidence；The reflector element is also used to for the light after reflection being incident to the photosurface of the fingerprint sensor.It should
Shield reflector element and fingerprint sensor in lower fingerprint recognition system to be set between liquid crystal display panel and backlight module, it is single by reflection
Member will reflex to the photosurface of fingerprint sensor by the light of liquid crystal display panel incidence, avoid in LCD backlight module to fingerprint
Light blocks, and carries out light reflection by reflector element, realizes the optical signal detecting circuit of optical finger print under the screen of LCD,
Optical finger print under the screen of LCD is realized to identify.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this Shen
Some embodiments please for those of ordinary skill in the art without any creative labor, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of lamination schematic diagram one of liquid crystal display fingerprint identification device provided by the embodiments of the present application；
Fig. 2 is a kind of lamination schematic diagram two of liquid crystal display fingerprint identification device provided by the embodiments of the present application；
Fig. 3 is a kind of lamination schematic diagram three of liquid crystal display fingerprint identification device provided by the embodiments of the present application；
Fig. 4 is a kind of lamination schematic diagram four of liquid crystal display fingerprint identification device provided by the embodiments of the present application；
Fig. 5 is the structural schematic diagram of a kind of electronic equipment provided by the embodiments of the present application；
Fig. 6 is the structural schematic diagram of another electronic equipment provided by the embodiments of the present application.
Specific embodiment
To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application
In attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is
Some embodiments of the present application, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall in the protection scope of this application.
Unless otherwise defined, all technical and scientific terms used herein and the technical field for belonging to the application
The normally understood meaning of technical staff is identical.The term used in the description of the present application is intended merely to description tool herein
The purpose of the embodiment of body, it is not intended that in limitation the application.Term as used herein "and/or" includes one or more phases
Any and all combinations of the listed item of pass.With reference to the accompanying drawing, some embodiments of the application are made specifically
It is bright.In the absence of conflict, the feature in following embodiment and embodiment can be combined with each other.
The following each embodiments of the application provide the lower fingerprint recognition system of screen, liquid crystal display fingerprint identification device and electronics and set
It is standby, it can be applied to optical finger print under any screen with LCD such as smart phone, laptop, wearable device, household appliance
In the electronic equipment of identification function.Optical finger print can locally be realized in the display area of LCD under the screen of LCD, can also be full frame
It realizes.
It is illustrated as follows in conjunction with multiple examples to provided by the embodiments of the present application.
In liquid crystal display fingerprint identification device provided by the embodiment of the present application, of the reflector element of fingerprint mould group
Number can be one, or it is multiple, combine multiple examples first to know with a reflector element to liquid crystal display fingerprint as follows
Other device is illustrated.
Fig. 1 is a kind of lamination schematic diagram one of liquid crystal display fingerprint identification device provided by the embodiments of the present application.Such as Fig. 1
It is shown, the liquid crystal display fingerprint identification device can include: display module 1 and fingerprint mould group 2.Wherein, display module 1 includes:
Liquid crystal display panel 11 and the backlight module 12 that 11 back side of liquid crystal display panel is set.Fingerprint mould group 2 is also referred to as shielding lower fingerprint recognition system
System, can include: fingerprint light source 21, reflector element 22 and fingerprint sensor 23.
Liquid crystal display panel 11 can be located at the top of backlight module 12.Display module 1 may also include that cover board 13, liquid crystal display panel 11
It can be between cover board 13 and backlight module 12.
Reflector element 22 and fingerprint sensor 23 are for being arranged between liquid crystal display panel 11 and backlight module 12.Liquid crystal display panel
It is vertically opposite with reflector element 22 and fingerprint sensor 23 towards on the direction of liquid crystal display panel 11 between 11 and backlight module 12
Part is a part of liquid crystal display panel 11, alternatively, for sky, alternatively, being a part of cover board 13, alternatively, can also be others
Non-display component.Set reflector element 22 and fingerprint sensor 23 can be to backlights between liquid crystal display panel 11 and backlight module 12
The light of mould group 12 to liquid crystal display panel 11 causes to block, even if on the direction towards liquid crystal display panel 11, with reflector element 22 and
The vertically opposite part of fingerprint sensor 23 is a part of liquid crystal display panel 11, which can not also show, is display module 1
Non-display area is presented.
Thus, the reflector element 22 and fingerprint sensor 23 may be disposed between liquid crystal display panel 11 and backlight module 12, show
Show the vertically opposite region of the non-display area of mould group 1.The non-display area of display module 1 can be the chin of display module 1
Non-display area, alternatively, the frame non-display area of display module 1.By the reflector element 22 and fingerprint sensing in fingerprint mould group 2
Device 23 is set between liquid crystal display panel 11 and backlight module 12, and the vertically opposite region of the non-display area of display module 1 can be protected
Demonstrate,prove the display effect of the display area of display module 1.
Reflector element 22 can have reflecting surface, which is used to be arranged towards liquid crystal display panel 11, to receive fingerprint light source
21 light issued after reflection, and pass through the light of 11 incidence of liquid crystal display panel.If as shown in Figure 1, reflector element 22 has one
A reflecting surface, then the reflecting surface of reflector element 22 can also be towards the photosurface of fingerprint sensor 23, after being also used to will reflect
Light is incident to the photosurface of fingerprint sensor 23.Liquid crystal display panel 11 and fingerprint sensor 23 may be disposed at the anti-of reflector element 22
Penetrate the different directions in face, wherein the different directions of the reflecting surface of reflector element 22 can be carried out by the optical axis of reflector element 22
It distinguishes, i.e., the different directions can be the different directions of the optical axis two sides of the reflecting surface of reflector element 22.That is, liquid crystal surface
Plate 11 can be located at the side of the optical axis of the reflecting surface of reflector element 22, and fingerprint sensor 23 is located at the reflecting surface of reflector element 22
Optical axis the other side.If the tool of reflector element 22 is there are two reflecting surface, a reflecting surface can be arranged towards liquid crystal display panel 11, separately
One reflecting surface can be towards the photosurface of fingerprint sensor 23.That is liquid crystal display panel 11 and fingerprint sensor 23 can be located separately direction
The different directions of two different reflectings surface.
Wherein, if in the fingerprint mould group 2, the number of reflector element 22 is one, then the reflecting surface of reflector element 22 can be with
Sensitive surface for the plane for being parallel to liquid crystal display panel 11, fingerprint sensor 23 can be put down substantially with the reflecting surface of reflector element 22
Row.
In this example it is shown that mould group 1 can be described as the display module of LCD, cover board 13 can be glass cover-plate.Backlight mould
Group 12 further include: backlight (not shown) is to provide light, the light that liquid crystal display panel 11 can be issued in backlight for liquid crystal display panel 11
Under line irradiation, display function is realized.Backlight can be located at the side of light guide plate (not shown) in backlight module 12, to by light
Line is incident to liquid crystal display panel 11 by light guide plate.Backlight can be light emitting diode (the Light Emitting of white light
Diode, abbreviation LED).
Fingerprint light source 21 can be used for providing the light of fingerprint detection.The reflector element 22 and fingerprint sensor of fingerprint mould group 2
23 are set between liquid crystal display panel 11 and backlight module 12, also, the reflecting surface of reflector element 23 can be set towards liquid crystal display panel 11
It sets, use is so that the light of the sending of fingerprint light source 21 can pass sequentially through lid after reflection of the pressing in the finger on cover board 11
Plate 13, liquid crystal display panel 12, are incident to and are set between liquid crystal display panel 11 and backlight module 12, that is, 11 lower section of liquid crystal display panel
The reflecting surface of the reflecting surface of reflector element 22, reflector element 22 reflects incident light.It is anti-due to reflector element 22
Face is penetrated also towards the photosurface of fingerprint sensor 23, with so that incident light is reflexed to fingerprint sensor by reflector element 22
23 photosurface, to generate the fingerprint image data for being used for fingerprint recognition in the photosurface of fingerprint sensor 23.
The reflecting surface of reflector element 22 can be mirror image element with high reflectivity, usually can by aluminium film, or
Person's silver mirror realizes reflection.Certainly, the reflecting surface of reflector element 22 can also realize that details are not described herein by another way.
Reflector element 22 for example can be reflecting mirror.It should be noted that the reflector element 22 can also carry out light reflection to be other
Component, and it is not limited to reflecting mirror, reflecting mirror is only a kind of possible example.The embodiment of the present application is limited not to this.
The field range of fingerprint sensor 23 is located in the display area of display module 1, that is, when finger pressing is in display mould
1 top of group, fingerprint sensor 23 can detect fingerprint image data, to carry out fingerprint recognition.Wherein, fingerprint sensor 23
It is properly termed as optical sensor, imaging sensor, optical fingerprint sensor, optical sensor or fingerprint detection inductor etc..
The light that fingerprint light source 21 issues, after handling digital reflex, passes sequentially through cover board 13, liquid crystal display panel 12 is incident to reflection
The reflecting surface of unit 22, the light that will be received by the reflecting surface of the reflector element 22, reflexes to the photosensitive of fingerprint sensor 23
Face, use is so that fingerprint sensor 23 then carries out fingerprint detection according to the light generation fingerprint image received.
Liquid crystal display fingerprint identification device provided by the embodiments of the present application, it may include: display module and fingerprint mould group；Its
In, which includes liquid crystal display panel and the backlight module that the liquid crystal display panel back side is arranged in；The fingerprint mould group includes: fingerprint
Light source, reflector element and fingerprint sensor, the reflector element and the fingerprint sensor are set to the liquid crystal display panel and the backlight mould
Between group；The reflector element has reflecting surface, which is arranged towards the liquid crystal display panel, to receive fingerprint light source sending
Light after reflection, and passes through the light of liquid crystal display panel incidence；The reflector element is also used to for the light after reflection being incident to
The photosurface of the fingerprint sensor.The liquid crystal display fingerprint identification device can be by the reflector element and fingerprint biography in fingerprint mould group
Sensor is set in display module between liquid crystal display panel and backlight module, will pass through the light of liquid crystal display panel incidence by reflector element
Line reflection avoids backlight module in LCD and blocks to fingerprint light to the photosurface of fingerprint sensor, by reflector element into
The reflection of row light, realizes the optical signal detecting circuit of optical finger print under the screen of LCD, realizes optical finger print under the screen of LCD and knows
Not.
On the basis of above-mentioned liquid crystal display fingerprint identification device shown in FIG. 1, the embodiment of the present application can also be provided one
Kind liquid crystal display fingerprint identification device.Fig. 2 is a kind of liquid crystal display fingerprint identification device provided by the embodiments of the present application
Lamination schematic diagram two.As shown in Fig. 2, liquid crystal display fingerprint recognition mould group is on the basis of above-mentioned shown in FIG. 1, wherein fingerprint
Mould group 2 may also include transmission units 25.
Transmission units 25 may be disposed between liquid crystal display panel 11 and reflector element 22, that is, the one side of transmission units 25 can court
To liquid crystal display panel 11, another side can will pass through the light of 11 incidence of liquid crystal display panel, transmission towards the reflecting surface of reflector element 22
To the reflecting surface of reflector element 22.
Transmission units 25 can be a kind of optical imaging element, be also referred to as camera lens.Transmission units 25 can have spherical surface or
Aspherical optical transmission structure, to focus on incident ray to the reflecting surface of reflector element 22, in the present embodiment, this enters
It penetrates light specifically and can be the light incident by liquid crystal display panel 11.Transmission units 25 can be a lens, or more
The structure of a lens composition.The lens of transmission units 25 can usually be formed by resin material or glass material.
The optical axis of transmission units 25 can be vertical with the optical axis of reflector element 22.Certainly, the optical axis of transmission units 25 and reflection
The optical axis out of plumb of unit 22, such as close to vertical.The optical axis of transmission units 25 is vertical with the optical axis of reflector element 22, may make
The light for penetrating the transmission of unit 25, is incident to the reflecting surface of the reflector element 22 as far as possible, avoids the omission of light, ensure that finger
The clear and integrity degree of print image, to guarantee the accuracy of fingerprint detection.
If including a reflector element in fingerprint mould group 2, the one side of transmission units 25 can be towards liquid crystal display panel 11, to connect
Receive the light incident by liquid crystal display panel 11；The another side of transmission units 11 will pass through towards the reflecting surface of reflector element 23
The incident light of transmission units 25, is transmitted through the reflecting surface of reflector element 23.
And the reflecting surface of reflector element 25, also towards the photosurface of fingerprint sensor 23, the light after reflecting is incident
To the photosurface of fingerprint sensor 23.
In above-mentioned liquid crystal display fingerprint identification device shown in fig. 1 or fig. 2, reflector element 22 in fingerprint mould group 2 refers to
Line sensor 23 and transmission units 25 can be integral type mould group, can effectively protect reflector element.
In the liquid crystal display fingerprint identification device that the embodiment provides, by being arranged between liquid crystal display panel and reflector element
Transmission units by by the light of liquid crystal display panel incidence, be transmitted through the reflecting surface of reflector element, improve the poly- of fingerprint light
Coke, so that it is apparent based on the fingerprint image that fingerprint light generates, it ensure that the accuracy of fingerprint detection.
Optionally, as above in liquid crystal display fingerprint identification device shown in fig. 1 or fig. 2, fingerprint light source 21 can be located at liquid
Crystal panel 11 is close to the side of non-display area.Fingerprint light source 21 is shown in above-mentioned Fig. 1 is located at liquid crystal display panel 11 close to non-aobvious
Show the example of the side in region.
The fingerprint light source 21 is located at liquid crystal display panel 11 close to the side of non-display area, can under the screen for realizing LCD optics
In the case where fingerprint recognition, it also can avoid display interference caused by fingerprint light source 21, guarantee the display effect of display module.
Optionally, fingerprint mould group 2 further include: printed circuit board (Printed Circuit Board, abbreviation PCB) 24.It should
PCB 24 can be connect with fingerprint sensor 23；The fingerprint light source 21 can be located on PCB 24.
Optionally, which can be hard PCB, or, flexible circuit board (Flexible Printed
Circuit Board, abbreviation FPCB).
It should be pointed out that being that PCB 24 is illustrated with FPCB in the Fig. 1 or Fig. 2.For hard pcb board as PCB
24 example is that FPCB is similar, and details are not described herein.
Optionally, in another example, which may be additionally located between liquid crystal display panel 11 and backlight module 12.If
Fingerprint light source 21 can between liquid crystal display panel 11 and backlight module 12, and, the light-emitting surface of the fingerprint light source 21 is towards liquid crystal surface
Plate 11.
In the liquid crystal display fingerprint identification device that the embodiment provides, by the setting of fingerprint light source 21 and liquid crystal display panel 11
Between backlight module 12, the integrated level of liquid crystal display fingerprint identification device is improved.
Optionally, no matter the position of fingerprint light source 21 why, fingerprint light source 21 as shown above can be infrared light supply.It should
Infrared light supply can be the infrared light supply of 850nm wavelength.The infrared light supply can be for example infrared LED light source, infrared vertical
Cavity surface emitting lasers (Vertical Cavity Surface Emitting Laser, abbreviation VCSEL), infrared laser two
Pole pipe (Laser Diode) etc..
Optionally, if fingerprint light source 21 is infrared light supply, to avoid interference of the visible light to fingerprint detection, fingerprint mould group 2
Further include: infrared fileter (not shown), to filter out the visible light except infrared light by the infrared fileter.
In one implementation, which can be located at reflector element 22 shown in fig. 1 or fig. 2 and pass close to fingerprint
The one side of sensor 23；Alternatively, being located at fingerprint sensor 23 shown in fig. 1 or fig. 2 close to the one side of reflector element 22.
In another implementation, which can be located at the incidence surface or light-emitting surface of transmission units 25 in Fig. 2.
In the liquid crystal display fingerprint identification device that the embodiment provides, infrared light supply is set by fingerprint light source, it can
So that the fingerprint light of fingerprint detection is infrared light, it can avoid fingerprint light to the interference to show visible light source, guarantee
The display effect of display module；Interference of the visible light source to fingerprint light is also avoided simultaneously, fingerprint detection is effectively ensured
Accuracy.
Multiple examples are combined to carry out example with structure of two reflector elements to liquid crystal display fingerprint identification device as follows
Explanation.It should be noted that in the liquid crystal display fingerprint identification device that following embodiments provide, and mentioned in above-mentioned Fig. 1, Fig. 2
In the fingerprint mould group of confession, the introduction of the same or similar component can be found in it is above-mentioned, it is following to repeat no more.
Fig. 3 is a kind of lamination schematic diagram three of liquid crystal display fingerprint identification device provided by the embodiments of the present application.Such as Fig. 3
It is shown, the liquid crystal display fingerprint identification device can include: display module 1 and fingerprint mould group 2.Wherein, display module 1 includes:
Liquid crystal display panel 11 and the backlight module 12 that 11 back side of liquid crystal display panel is set.Fingerprint mould group 2 is also referred to as shielding lower fingerprint recognition system
System, can include: fingerprint light source 21, the first reflector element 221, the second reflector element 222 and fingerprint sensor 23.
Liquid crystal display panel 11 can be located at the top of backlight module 12.Display module 1 may also include that cover board 13, liquid crystal display panel 11
It can be between cover board 13 and backlight module 12.
First reflector element 221, the second reflector element 222 and fingerprint sensor 23 are for being arranged in liquid crystal display panel 11 and back
Between optical mode group 12.Between liquid crystal display panel 11 and backlight module 12, towards on the direction of liquid crystal display panel 11, with the first reflector element
221, the second reflector element 222 and the vertically opposite part of fingerprint sensor 23 are a part of liquid crystal display panel 11, alternatively, for sky,
Alternatively, being a part of cover board 13, alternatively, can also be other non-display components.Liquid crystal display panel 11 and backlight module 12 it
Between set the first reflector element 221,
Second reflector element 222 and fingerprint sensor 23 can cause to hide to the light of backlight module 12 to liquid crystal display panel 11
Gear, even if being liquid crystal with reflector element 22 and the vertically opposite part of fingerprint sensor 23 on the direction towards liquid crystal display panel 11
A part of panel 11, a part can not also be shown, non-display area is presented for display module 1.
Thus, the first reflector element 221, the second reflector element 222 and fingerprint sensor 23 are set to 11 and of liquid crystal display panel
Between backlight module 12, the vertically opposite region of the non-display area of display module 1.The non-display area of display module 1 can be with
For the chin non-display area of display module 1, alternatively, the frame non-display area of display module 1.By in fingerprint mould group 2
One reflector element 221, the second reflector element 222 and fingerprint sensor 23 are set between liquid crystal display panel 11 and backlight module 12,
The vertically opposite region of the non-display area of display module 1, it is ensured that the display effect of the display area of display module 1.
It if in the fingerprint mould group 2, the number of reflector element is 2, that is, include: that the first reflector element 221 and the second reflection are single
Member 222.
Wherein, the first reflector element 221 has reflecting surface, and the reflecting surface of first reflector element 221 is used for towards liquid crystal
Panel 11 is arranged, to receive the light of the sending of fingerprint light source 21 after reflection, and the light incident by liquid crystal display panel 11.Such as figure
Shown in 3, if the first reflector element 221 has a reflecting surface, the reflecting surface of the first reflector element 221 is also reflected towards second
The reflecting surface of unit 222 is also used to for the light after reflection being incident to the reflecting surface of the second reflector element 222.Liquid crystal display panel 11
It may be disposed at the different directions of the reflecting surface of the first reflector element 221 with the second reflector element 222, wherein the first reflector element
The different directions of 221 reflecting surface can be distinguished by the optical axis of the first reflector element 221, i.e., the different directions can be
The different directions of the optical axis two sides of the reflecting surface of first reflector element 221.That is, liquid crystal display panel 11 can be located at the first reflection
The side of the optical axis of the reflecting surface of unit 221, and the second reflector element 222 is located at the light of the reflecting surface of the first reflector element 221
The other side of axis.If the first reflector element 221 tool is there are two reflecting surface, a reflecting surface can be arranged towards liquid crystal display panel 11,
Another reflecting surface can be towards the second reflector element 222.That is liquid crystal display panel 11 and the second reflector element 222 can be located separately direction
The different directions of two different reflectings surface.
Second reflector element 222 can also have reflecting surface, reflecting surface the first reflector element of direction of the second reflector element 222
221 reflecting surface setting, the light after reflective surface to receive the first reflector element 221.As shown in figure 3, if second is anti-
Unit 222 is penetrated with a reflecting surface, then the reflecting surface of the second reflector element 222 is also towards the photosurface of fingerprint sensor 23,
The light after the reflective surface of the second reflector element 222 to be incident to the photosurface to fingerprint sensor 23.First reflection
Unit 221 and fingerprint sensor 23 can be located at the different directions of the reflecting surface of the second reflector element 222, wherein the second reflection is single
The different directions of reflecting surface of member 222 can be distinguished by the optical axis of the second reflector element 222, i.e. the different directions can be with
For the different directions of the optical axis two sides of the reflecting surface of the second reflector element 222.That is, the first reflector element 221 can be located at
The side of the optical axis of the reflecting surface of second reflector element 222, and fingerprint sensor 23 is located at the reflecting surface of the second reflector element 222
Optical axis the other side.If there are two reflectings surface for the second reflector element 222 tool, a reflecting surface can be towards the first reflector element
221 settings, another reflecting surface can be towards fingerprint sensor 23.I.e. the first reflector element 221 and fingerprint sensor 23 can be distinguished
It is located towards the different directions of two different reflectings surface.
The reflecting surface of second reflector element 222 can be substantially parallel with the reflecting surface of the first reflector element 221, refers to
It is that the optical axis of the reflecting surface of the second reflector element 222 is parallel with the optical axis of reflecting surface of the first reflector element 221 or close flat
Row.
First reflector element 221 and the second reflector element 222 can be with Fig. 1, liquid crystal shown in Fig. 2 in above-described embodiment
Reflector element 22 in display screen fingerprint identification device is same or like, and referring in particular to above-mentioned, details are not described herein.
Fingerprint light source 21 can be with the fingerprint light source 21 in the liquid crystal display fingerprint identification device in above-mentioned Fig. 1 or Fig. 2
Same or like, referring in particular to above-mentioned, details are not described herein.
The light that fingerprint light source 21 issues, after handling digital reflex, passes sequentially through cover board 13, liquid crystal display panel 12 is incident to first
The reflecting surface of reflector element 221, the light that will be received by the reflecting surface of the first reflector element 221 reflex to the second reflection list
The reflecting surface of member 222 reflexes to the photosensitive of fingerprint sensor 23 by the reflecting surface of the second reflector element 222 to light is received
Face, use is so that fingerprint sensor 23 then carries out fingerprint detection according to the light generation fingerprint image received.
Liquid crystal display fingerprint identification device provided by the embodiments of the present application, it may include: display module and fingerprint mould group；Its
In, which includes liquid crystal display panel and the backlight module that the liquid crystal display panel back side is arranged in；The fingerprint mould group includes: fingerprint
Light source, the first reflector element, the second reflector element and fingerprint sensor, first reflector element, the second reflector element and this refer to
Line sensor is located between the liquid crystal display panel and the backlight module；The reflecting surface of first reflector element is set towards the liquid crystal display panel
It sets, to receive the light of fingerprint light source sending after reflection, and passes through the light of liquid crystal display panel incidence；First reflection is single
Member is also used to for the light after the reflective surface of the first reflector element being incident to the reflecting surface of the second reflector element, the second reflection
The photosurface of the reflecting surface of unit towards the fingerprint sensor is arranged, by the light after the reflective surface of the second reflector element
It is incident to the photosurface of the fingerprint sensor.The liquid crystal display fingerprint identification device can be by first reflector element, second instead
It penetrates unit and fingerprint sensor is set in display module between liquid crystal display panel and backlight module, pass sequentially through the first reflection list
Member, the second reflector element will reflex to the photosurface of fingerprint sensor by the light of liquid crystal display panel incidence, avoid in LCD and carry on the back
Optical mode group blocks fingerprint light, carries out light reflection by the first reflector element, the second reflector element, realizes LCD's
The optical signal detecting circuit for shielding lower optical finger print realizes optical finger print under the screen of LCD and identifies.
In the liquid crystal display fingerprint identification device that the embodiment provides, the first reflector element and the second reflection are passed sequentially through
Unit will reflex to the photosurface of fingerprint sensor by the light of liquid crystal display panel incidence, pass through first reflector element and second
Reflector element realizes the folding of optical path, shortens the spacing between liquid crystal display panel and backlight module, realizes liquid crystal display
Fingerprint identification device it is lightening, while the object distance of fingerprint sensor is increased, to improve the visual field model of fingerprint sensor
It encloses, expands visual fingerprint area.
On the basis of above-mentioned liquid crystal display fingerprint identification device shown in Fig. 3, the embodiment of the present application can also be provided one
Kind liquid crystal display fingerprint identification device.Fig. 4 is a kind of liquid crystal display fingerprint identification device provided by the embodiments of the present application
Lamination schematic diagram four.As shown in figure 4, liquid crystal display fingerprint identification device is on the basis of above-mentioned shown in Fig. 3, wherein fingerprint
Mould group 2 may also include transmission units 25.
Transmission units 25 can be between the first reflector element 221 and the second reflector element 222, i.e. the one of transmission units 25
Face can be arranged towards the reflecting surface of the first reflector element 221, and to receive the light of the first reflector element 221 reflection, transmission is single
The another side of member 25 can be arranged towards the reflecting surface of the second reflector element 222, to the light after reflecting the first reflector element 221
Line is transmitted through the reflecting surface of the second reflector element 222.
Transmission units 25 can with it is saturating in Fig. 1 in above-described embodiment, liquid crystal display fingerprint identification device shown in Fig. 2
It is same or like to penetrate unit 25, referring in particular to above-mentioned, details are not described herein.
The optical axis of transmission units 25 can be vertical with the optical axis of reflecting surface of the first reflector element 221, also single with the second reflection
The optical axis of the reflecting surface of member 222 is vertical.Certainly, the optical axis of transmission units 25 can be with the light of the reflecting surface of the first reflector element 221
Axis can also out of plumb, also out of plumb vertical with the optical axis of reflecting surface of the second reflector element 222.The optical axis of transmission units 25 can be with
The optical axis of the reflecting surface of first reflector element 221 is vertical, also vertical with the optical axis of reflecting surface of the second reflector element 222, can make
The light that transmission units 25 transmit is obtained, the optical axis for being incident to the reflecting surface of the second reflector element 222 as far as possible is vertical, avoids light
The omission of line, ensure that the clear and integrity degree of fingerprint image, to guarantee the accuracy of fingerprint detection.
It if the number of the reflector element in fingerprint mould group 2 is 2, that is, include the first reflector element 221 and the second reflector element
222, then the reflecting surface of the first reflector element 221 is towards liquid crystal display panel 11, and the reflecting surface of first reflector element 221 is for receiving
Pass through the incident light of liquid crystal display panel 11；As shown in figure 3, if the first reflector element 221 has a reflecting surface, the first reflection
The reflecting surface of unit 221 is also towards the one side of transmission units 11, will be reflexed to by the incident light of liquid crystal display panel 11
Penetrate unit 11.Liquid crystal display panel 11 and transmission units 11 can be located at the different directions of the reflecting surface of the first reflector element 221, wherein
The different directions of the reflecting surface of first reflector element 221 can be distinguished by the optical axis of the first reflector element 221, i.e., this is not
Equidirectional can be the different directions of the optical axis two sides of the reflecting surface of the first reflector element 221.Namely institute, liquid crystal display panel 11 can
Positioned at the side of the optical axis of the reflecting surface of the first reflector element 221, and transmission units 11 are located at the reflection of the first reflector element 221
The other side of the optical axis in face.If there are two reflectings surface for the first reflector element 221 tool, a reflecting surface can be towards liquid crystal display panel 11
Setting, another reflecting surface can be towards transmission units 11.I.e. liquid crystal display panel 11 and transmission units 11 can be located separately towards two
The different directions of different reflectings surface.
The reflecting surface of second reflector element 222 towards transmission units 25 another side, to receive through transmission units 25
Incident light；As shown in figure 3, if the second reflector element 222 has a reflecting surface, the reflection of the second reflector element 222
Face also towards the photosurface of fingerprint sensor 23, will reflex to fingerprint sensor 23 by the incident light of transmission units 25
Photosurface.Transmission units 25 and fingerprint sensor 23 can be located at the different directions of the reflecting surface of the second reflector element 222, wherein
The different directions of the reflecting surface of second reflector element 222 can be distinguished by the optical axis of the second reflector element 222, i.e., this is not
Equidirectional can be the different directions of the optical axis two sides of the reflecting surface of the second reflector element 222.That is, transmission units 25 can
Positioned at the side of the optical axis of the reflecting surface of the second reflector element 222, and fingerprint sensor 23 is located at the anti-of the second reflector element 222
Penetrate the other side of the optical axis in face.If there are two reflectings surface for the second reflector element 222 tool, a reflecting surface can be towards transmission units
25 settings, another reflecting surface can be towards fingerprint sensor 23.That is transmission units 25 and fingerprint sensor 23 can be located separately court
To the different directions of two different reflectings surface.
In above-mentioned Fig. 3 or liquid crystal display fingerprint identification device shown in Fig. 4, the second reflector element in fingerprint mould group 2
222, fingerprint sensor 23 and transmission units 25 can be integral type mould group, can effectively ensure that reflector element.
In the liquid crystal display fingerprint identification device that the embodiment provides, by the first reflector element and the second reflection is arranged in
The light of the reflection surface launching of first reflector element is transmitted through the reflection of the second reflector element by the transmission units between unit
Face improves the focusing of fingerprint light, so that it is apparent based on the fingerprint image that fingerprint light generates, it ensure that fingerprint detection
Accuracy.
Optionally, as in figure 3 above or liquid crystal display fingerprint identification device shown in Fig. 4, fingerprint light source 21 can be located at liquid
Crystal panel 11 is close to the side of non-display area.Fingerprint light source 21 is shown in above-mentioned Fig. 1 is located at liquid crystal display panel 11 close to non-aobvious
Show the example of the side in region.
The fingerprint light source 21 is located at liquid crystal display panel 11 close to the side of non-display area, can under the screen for realizing LCD optics
In the case where fingerprint recognition, it also can avoid display interference caused by fingerprint light source 21, guarantee the display effect of display module.
Optionally, fingerprint mould group 2 further include: PCB 24.The PCB 24 can be connect with fingerprint sensor 23；The fingerprint light source
21 can be located on PCB 24.
Optionally, which can be hard PCB, or, FPCB.
It should be pointed out that being that PCB 24 is illustrated with FPCB in the Fig. 3 or Fig. 4.For hard pcb board as PCB
24 example is that FPCB is similar, and details are not described herein.
Optionally, in another example, which may be additionally located between liquid crystal display panel 11 and backlight module 12.If
Fingerprint light source 21 can between liquid crystal display panel 11 and backlight module 12, and, the light-emitting surface of the fingerprint light source 21 is towards liquid crystal surface
Plate 11.
In the liquid crystal display fingerprint identification device that the embodiment provides, by the setting of fingerprint light source 21 and liquid crystal display panel 11
Between backlight module 12, the integrated level of liquid crystal display fingerprint identification device is improved.
Optionally, no matter the position of fingerprint light source 21 why, fingerprint light source 21 as shown above can be infrared light supply.It should
Infrared light supply can be the infrared light supply of 850nm wavelength.The infrared light supply can be for example infrared LED light source, infrared
VCSEL, infrared laser diode etc..
Optionally, if fingerprint light source 21 is infrared light supply, to avoid interference of the visible light to fingerprint detection, fingerprint mould group 2
Further include: infrared fileter (not shown), to filter out the visible light except infrared light by the infrared fileter.
In one implementation, which can be located at first reflector element of Fig. 3 or shown in Fig. 4,221 direction
The one side of second reflector element 222, alternatively, being located in Fig. 3 or Fig. 4 the second reflector element 222 towards the one of fingerprint sensor 23
Face；Alternatively, be located at Fig. 3 or Fig. 4 in fingerprint sensor 23 towards the second reflector element 222 one side.
In another implementation, which can be located at the incidence surface or light-emitting surface of transmission units 25 in Fig. 4.
In the liquid crystal display fingerprint identification device that the embodiment provides, infrared light supply is set by fingerprint light source, it can
So that the fingerprint light of fingerprint detection is infrared light, it can avoid fingerprint light to the interference to show visible light source, guarantee
The display effect of display module；Interference of the visible light source to fingerprint light is also avoided simultaneously, fingerprint detection is effectively ensured
Accuracy.
It should be noted that the above embodiments of the present application be also only some of liquid crystal fingerprint mould group provided herein can
The example of energy, fingerprint mould group provided herein can also include other numbers such as three or four reflector elements, accordingly
, the positional relationship of reflector element does adaptation adjustment, as long as the light for being incident to fingerprint sensor is reflected by reflector element
Light afterwards just belongs to the protection scope of the embodiment of the present application.
A kind of electronic equipment with above-mentioned liquid crystal display fingerprint identification device can also be provided in the embodiment of the present application.Fig. 5
For the structural schematic diagram of a kind of electronic equipment provided by the embodiments of the present application.As shown in figure 5, the electronic equipment can include: shell
501 and liquid crystal display fingerprint identification device 502.Liquid crystal display fingerprint identification device 502 is located in shell 501.Certainly, should
Electronic equipment also may not include: shell 501, and be not limited to structure shown in fig. 5.The electronic equipment may also include other portions
Part, details are not described herein.
Liquid crystal display fingerprint identification device 502 can be liquid crystal display fingerprint shown in any in above-mentioned Fig. 1-Fig. 4
Identification device.
The electronic equipment may include any of the above-described liquid crystal display fingerprint identification device, due to by the reflector element
And fingerprint sensor is set in display module between liquid crystal display panel and backlight module, will pass through liquid crystal display panel by reflector element
Incident light reflexes to the photosurface of fingerprint sensor, avoids backlight module in LCD and blocks to fingerprint light, by anti-
It penetrates unit and carries out light reflection, realize the optical signal detecting circuit of optical finger print under the screen of LCD, realize light under the screen of LCD
Learn fingerprint recognition.
The embodiment of the present application also proposes fingerprint recognition system under a kind of screen, the structural schematic diagram tool of fingerprint recognition system under the screen
Body is referring to the fingerprint mould group in the liquid crystal display fingerprint identification device any in above-mentioned Fig. 1-Fig. 4, and details are not described herein.
Under fingerprint recognition system is suitable for the lower section of the liquid crystal display die set with liquid crystal display panel and backlight module to be shielded under the screen
Optical finger print detection.Shielding lower fingerprint recognition system includes: fingerprint light source, reflector element and fingerprint sensor.
The fingerprint light source is for providing the light of fingerprint detection, and the reflector element and the fingerprint sensor are for being arranged at this
Between liquid crystal display panel and the backlight module；The reflector element has reflecting surface, which is used to be arranged towards the liquid crystal display panel,
To receive the light of fingerprint light source sending after reflection, and pass through the light of liquid crystal display panel incidence.
The reflector element is also used to for the light after reflection being incident to the photosurface of the fingerprint sensor；
The fingerprint sensor is used for according to the finger for receiving finger of the light detection pressing above the liquid crystal display die set
Print image, and the field range of the fingerprint sensor is located at the display area of the liquid crystal display die set.
In one implementation, shield lower fingerprint recognition system further include: transmission units.
The transmission units are located between the liquid crystal display panel and the reflector element, will pass through the light of liquid crystal display panel incidence
Line is transmitted through the reflecting surface of the reflector element.
In another implementation, which includes: a reflector element；The transmission units are towards the liquid crystal surface
Plate, to receive the light for passing through liquid crystal display panel incidence；The reflecting surface of the reflector element is passed through towards the transmission units with receiving
The light of transmission units incidence；And the reflecting surface of the reflector element, will be anti-also towards the photosurface of the fingerprint sensor
Light after penetrating is incident to the photosurface of the fingerprint sensor.
In another implementation, which includes: the first reflector element and the second reflector element；
The reflecting surface of first reflector element is towards the liquid crystal display panel, to receive the light for passing through liquid crystal display panel incidence；
The reflecting surface of first reflector element is also towards the one side of the transmission units, to will be anti-by the light of liquid crystal display panel incidence
It is incident upon the transmission units；
The reflecting surface of second reflector element is entered to receive by the transmission units towards the another side of the transmission units
The light penetrated；The reflecting surface of second reflector element also towards the photosurface of the fingerprint sensor, will pass through the transmission units
Incident light reflexes to the photosurface of the fingerprint sensor.
In another implementation, which is located at the liquid crystal display panel close to the side of non-display area, alternatively,
The fingerprint light source is located between the liquid crystal display panel and the backlight module.
In another implementation, the fingerprint mould group further include: PCB, the PCB are connect with the fingerprint sensor；This refers to
Line light source is located on the PCB.
In another implementation, which is hard PCB, or, FPCB.
In another implementation, which is infrared light supply.
Fingerprint recognition system under screen provided by the embodiments of the present application can will pass through liquid crystal display panel incidence by reflector element
Light reflexes to the photosurface of fingerprint sensor, avoids backlight module in LCD and blocks to fingerprint light, passes through reflector element
Light reflection is carried out, the optical signal detecting circuit of optical finger print under the screen of LCD is realized, realizes optical finger print under the screen of LCD
Identification.
A kind of electronic equipment with fingerprint recognition system under above-mentioned screen can also be provided in the embodiment of the present application.Fig. 6 is this Shen
Please embodiment provide another electronic equipment structural schematic diagram.As shown in fig. 6, the electronic equipment can include: shield lower fingerprint
Identifying system 601.Shielding lower fingerprint recognition system 601 can know for liquid crystal display fingerprint shown in any in above-mentioned Fig. 1-Fig. 4
Fingerprint mould group 2 in other device.
The electronic equipment may include fingerprint recognition system under any of the above-described screen, due to that will shield lower fingerprint recognition system
In reflector element and fingerprint sensor may be disposed in display module between liquid crystal display panel and backlight module, pass through reflector element
The photosurface of fingerprint sensor will be reflexed to by the light of liquid crystal display panel incidence, avoid in LCD backlight module to fingerprint light
Line blocks, and carries out light reflection by reflector element, realizes the optical signal detecting circuit of optical finger print under the screen of LCD, real
Show optical finger print under the screen of LCD to identify.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above method embodiment can pass through
The relevant hardware of program instruction is completed, and program above-mentioned can be stored in a computer readable storage medium, the program
When being executed, step including the steps of the foregoing method embodiments is executed；And storage medium above-mentioned includes: ROM, RAM, magnetic disk or light
The various media that can store program code such as disk.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the application, rather than its limitations；To the greatest extent
Pipe is described in detail the application referring to foregoing embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, each embodiment technology of the application that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (17)
1. fingerprint recognition system under a kind of screen, suitable for the lower section with liquid crystal display panel and the liquid crystal display die set of backlight module with
Shield lower optical finger print detection, which is characterized in that under the screen fingerprint recognition system include: fingerprint light source, reflector element and
Fingerprint sensor；
The fingerprint light source is for providing the light of fingerprint detection, the reflector element and the fingerprint sensor for being arranged
Between the liquid crystal display panel and the backlight module；The reflector element has reflecting surface, and the reflecting surface is used for described in
Liquid crystal display panel setting to receive light that the fingerprint light source issues after reflection, and passes through the light of the liquid crystal display panel incidence
Line；
The reflector element is also used to for the light after reflection being incident to the photosurface of the fingerprint sensor；
The fingerprint sensor is used for according to the finger for receiving finger of the light detection pressing above the liquid crystal display die set
Print image, and the field range of the fingerprint sensor is located at the display area of the liquid crystal display die set.
2. fingerprint recognition system under screen according to claim 1, which is characterized in that fingerprint recognition system is also wrapped under the screen
It includes: transmission units；
The transmission units will pass through the liquid crystal display panel incidence between the liquid crystal display panel and the reflector element
Light is transmitted through the reflecting surface of the reflector element.
3. fingerprint recognition system under screen according to claim 2, which is characterized in that the reflector element includes: one anti-
Penetrate unit；The one of the transmission units is arranged facing towards the liquid crystal display panel, to receive the light for passing through the liquid crystal display panel incidence
Line；The reflecting surface of the another side of the transmission units towards the reflector element is arranged, will be entered by the transmission units
The light penetrated is transmitted through the reflecting surface of the reflector element；The reflecting surface of the reflector element is also towards the fingerprint sensor
Photosurface, the light after reflection is incident to the photosurface of the fingerprint sensor.
4. fingerprint recognition system under screen according to claim 2, which is characterized in that the reflector element includes: first anti-
Penetrate unit and the second reflector element；The reflecting surface of the one of the transmission units facing towards first reflector element is arranged, to
Receive the light of the first reflector element reflection；Reflection of the another side of the transmission units towards second reflector element
Face setting, to be transmitted through the reflecting surface of second reflector element for the light after first reflector element reflection；
The reflecting surface of first reflector element is arranged towards the liquid crystal display panel, and the reflecting surface of first reflector element is used for
The transmission units will be reflexed to by the light of the liquid crystal display panel incidence；
The reflecting surface of second reflector element is arranged towards the transmission units, and the reflecting surface of second reflector element is used for
The photosurface of the fingerprint sensor will be reflexed to by the light of the transmission units incidence.
5. fingerprint recognition system under screen according to claim 1, which is characterized in that the fingerprint light source is located at the liquid crystal
Panel is close to the side of non-display area, alternatively, the fingerprint light source is between the liquid crystal display panel and the backlight module.
6. fingerprint recognition system under screen according to claim 5, which is characterized in that fingerprint recognition system is also wrapped under the screen
Include: printing board PCB, the PCB are connect with the fingerprint sensor；The fingerprint light source is located on the PCB.
7. fingerprint recognition system under screen according to claim 6, which is characterized in that the PCB is hard PCB, or, flexible
Printed circuit board FPCB.
8. fingerprint recognition system under screen described in any one of -7 according to claim 1, which is characterized in that the fingerprint light source is
Infrared light supply.
9. a kind of electronic equipment characterized by comprising fingerprint recognition under screen described in any one of the claims 1-8
System.
10. a kind of liquid crystal display fingerprint identification device characterized by comprising display module and fingerprint mould group；Wherein, institute
Stating display module includes liquid crystal display panel and the backlight module that the liquid crystal display panel back side is arranged in；The fingerprint mould group includes fingerprint
Light source, reflector element and fingerprint sensor；
The reflector element and the fingerprint sensor are for being arranged between the liquid crystal display panel and the backlight module；It is described
The reflecting surface of reflector element is used to be arranged towards the liquid crystal display panel, to receive the light of the fingerprint light source sending through reflecting
Afterwards, and pass through the light of the liquid crystal display panel incidence；
The reflector element is also used to for the light after reflection being incident to the photosurface of the fingerprint sensor.
11. liquid crystal display fingerprint identification device according to claim 10, which is characterized in that the fingerprint mould group is also wrapped
It includes: transmission units；
The transmission units will pass through the liquid crystal display panel incidence between the liquid crystal display panel and the reflector element
Light is transmitted through the reflecting surface of the reflector element.
12. liquid crystal display fingerprint identification device according to claim 11, which is characterized in that the reflector element packet
It includes: a reflector element；The one of the transmission units is arranged facing towards the liquid crystal display panel, passes through the liquid crystal display panel to receive
Incident light；The another side of the transmission units will pass through the transmission units towards the reflecting surface of the reflector element
Incident light, is transmitted through the reflecting surface of the reflector element；The reflecting surface of the reflector element is also towards the fingerprint sensing
Light after reflection is incident to the photosurface of the fingerprint sensor by the photosurface of device.
13. liquid crystal display fingerprint identification device according to claim 11, which is characterized in that the reflector element packet
It includes: the first reflector element and the second reflector element；Reflecting surface of the one of the transmission units facing towards first reflector element
Setting, to receive the light of the first reflector element reflection, the another side of the transmission units is reflected towards described second
The reflecting surface of unit is arranged, to be transmitted through second reflector element for the light after first reflector element reflection
Reflecting surface；
The reflecting surface of first reflector element is arranged towards the liquid crystal display panel, and the reflecting surface of first reflector element is used for
The transmission units will be reflexed to by the light of the liquid crystal display panel incidence；
The reflecting surface of second reflector element is arranged towards the transmission units, and the reflecting surface of second reflector element is used for
The photosurface of the fingerprint sensor will be reflexed to by the light of the transmission units incidence.
14. liquid crystal display fingerprint identification device according to claim 10, which is characterized in that the fingerprint light source is located at
The liquid crystal display panel is close to the side of non-display area, alternatively, the fingerprint light source is located at the liquid crystal display panel and the backlight
Between mould group.
15. liquid crystal display fingerprint identification device according to claim 14, which is characterized in that the fingerprint mould group is also wrapped
Include: printing board PCB, the PCB are connect with the fingerprint sensor；The fingerprint light source is located on the PCB.
16. liquid crystal display fingerprint identification device according to claim 15, which is characterized in that the PCB is hard
PCB, or, flexible circuit board FPCB.
17. liquid crystal display fingerprint identification device described in any one of 0-16 according to claim 1, which is characterized in that described
Fingerprint light source is infrared light supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920099950.2U CN209625233U (en) | 2019-01-22 | 2019-01-22 | Shield lower fingerprint recognition system, liquid crystal display fingerprint identification device and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920099950.2U CN209625233U (en) | 2019-01-22 | 2019-01-22 | Shield lower fingerprint recognition system, liquid crystal display fingerprint identification device and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209625233U true CN209625233U (en) | 2019-11-12 |
Family
ID=68450956
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920099950.2U Active CN209625233U (en) | 2019-01-22 | 2019-01-22 | Shield lower fingerprint recognition system, liquid crystal display fingerprint identification device and electronic equipment |
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| CN (1) | CN209625233U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111783657A (en) * | 2020-06-30 | 2020-10-16 | 联想(北京)有限公司 | LCD display assembly for fingerprint identification and LCD display device |
| JP2023513985A (en) * | 2019-12-16 | 2023-04-05 | 京東方科技集團股▲ふん▼有限公司 | Display module and display device |
-
2019
- 2019-01-22 CN CN201920099950.2U patent/CN209625233U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2023513985A (en) * | 2019-12-16 | 2023-04-05 | 京東方科技集團股▲ふん▼有限公司 | Display module and display device |
| JP7460659B2 (en) | 2019-12-16 | 2024-04-02 | 京東方科技集團股▲ふん▼有限公司 | Display module and display device |
| CN111783657A (en) * | 2020-06-30 | 2020-10-16 | 联想(北京)有限公司 | LCD display assembly for fingerprint identification and LCD display device |
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