CN206757648U

CN206757648U - Biological identification device and electronic installation

Info

Publication number: CN206757648U
Application number: CN201690000161.3U
Authority: CN
Inventors: 李问杰
Original assignee: Shenzhen Sunwave Technology Co Ltd
Current assignee: Liuzhou Zibo Technology Co.,Ltd.
Priority date: 2016-11-03
Filing date: 2016-11-03
Publication date: 2017-12-15
Anticipated expiration: 2026-11-03
Also published as: WO2018081981A1

Abstract

The utility model discloses a kind of biological identification device and electronic installation.Biological identification device includes：Multiple spot lights, touch-screen, controller, multiple photo-sensitive cells and process circuit.Touch-screen is used to determine contact area of the target object on biological identification device；Controller is used to control the several points light source timesharing corresponding with contact area to light to launch optical signal to target object；Multiple photo-sensitive cells are used to receive the optical signal reflected by target object, and change the optical signal received as corresponding electric signal；Process circuit is used for the biological information that target object is determined according to electric signal.The electronic installation includes the biological identification device.

Description

Biological identification device and electronic installation

Technical field

It the utility model is related to living things feature recognition field, more particularly to a kind of biological identification device and electronic installation.

Background technology

In the related art, the principle of optical fingerprint identification module mainly utilizes reflection of the light in glass cover plate surfaces To identify the paddy ridge information of fingerprint, because when finger is pressed against on glass cover-plate, ridge and the glass cover-plate contact of fingerprint, and fingerprint Paddy without and glass cover-plate so that larger difference occurs in the reflection light of the valley and a ridge of fingerprint, reflection light is adopted Collect to realize the collection of fingerprint.

At present, optical fingerprint identification module is broadly divided into two kinds, wherein, a kind of fingerprint recognition mould commonly used for gate inhibition Block, a kind of is the fingerprint identification module using area source.

The fingerprint identification module commonly used for gate inhibition, generally use lamps emission light, and coordinate optics using camera System receives the light that finger reflects, so as to realize fingerprint collecting.So, in order to collect clearly image, camera and Optical system generally apart from glass cover-plate farther out.Correspondingly, when the larger fingerprint identification module of this volume is attached into electronics When on device (e.g., mobile phone), the thickness of electronic installation can be caused thicker, be unfavorable for electronic installation and develop towards lightening direction.

For the fingerprint identification module using area source, gather what the light launched by area source and reflected by finger was formed The precision of fingerprint image is by by the thickness effect of glass cover-plate, when the thickness increase of glass, by the scattering of light is gathered To the precision of fingerprint image can decline.Correspondingly, when the preceding cover sheet that such a fingerprint identification module is placed on to mobile phone During lower section, it can make it that the fingerprint sensing precision of fingerprint identification module is inadequate because preceding cover sheet is thicker.

Utility model content

The utility model embodiment is intended at least solve one of technical problem present in prior art.Therefore, this reality Needed to provide a kind of biological identification device and electronic installation with new embodiment.

A kind of biological identification device of the utility model embodiment, including：It is multiple spot lights, touch-screen, controller, more Individual photo-sensitive cell and process circuit.Touch-screen is used to determine contact area of the target object on the biological identification device；Control Device processed is used to controlling several described spot light timesharing corresponding with the contact area to light to launch optical signal to described Target object；Multiple photo-sensitive cells are used to receive the optical signal reflected by the target object, and change the optical signal received For corresponding electric signal；Process circuit is used for the biological information that the target object is determined according to the electric signal.

In above-mentioned biological identification device, if because biological identification device is to doing corresponding to the contact area of target object Light source is lighted using timesharing, so as to which optional single-point lights when target object is scanned, and it is enough that predetermined space also may be selected Remote several point light source light-emittings, correspondingly, the light reflected by target object influences each other sufficiently small；In addition, using mirror Face principle of reflection gathers light by photo-sensitive cell, photo-sensitive cell by the area of reflected light pickup area and the thickness of medium without Close, so as to improve the precision of images of collection target object.

In some embodiments, the biological identification device includes display module, and the display module is used to light simultaneously Image is performed to show, the display module includes multiple pixels, and the multiple pixel is used to be used as the multiple spot light, Or the region where each pixel is for respectively forming the spot light.

In some embodiments, the multiple pixel is self luminous spot light, or, the display module is further Including backlight, the backlight is area source, and the controller is by controlling the multiple pixel to be come to correspond to control Whether the light of the backlight is emitted from the multiple pixel, and each pixel corresponds to the region point of the backlight Xing Cheng not a spot light.

In some embodiments, when the multiple pixel is self luminous spot light, the display module is to have Machine diode displaying module；When the display module includes backlight, the display module is liquid crystal display die set.

In some embodiments, the touch-screen includes touch sensitive layer and touch detection circuit, the touch detection Circuit is used to drive touch sensitive layer to perform touch-sensing to determine the contact area, wherein, the touch sensitive layer is set Above the display module, or it is arranged on inside the display module.

In some embodiments, the display module includes relative first substrate and second substrate, first base Plate includes the first surface towards the second substrate, and the second substrate includes the second surface towards the first substrate, The multiple pixel is arranged between the first substrate and the second substrate, and each pixel is opened including control Pass, pixel electrode and public electrode.

In some embodiments, the multiple photo-sensitive cell, the controlling switch of the multiple pixel and institute Pixel electrode is stated to be respectively provided with the first surface.

In some embodiments, the display module further comprises being in latticed black-matrix layer, described photosensitive Element, which corresponds in the net region of the black-matrix layer, to be set, and for receiving the target through the net region The optical signal of object reflection.

In some embodiments, the black-matrix layer is arranged on the second surface.

In some embodiments, the display module further comprises chromatic filter layer, and the chromatic filter layer is formed In the net region of the black-matrix layer, the photo-sensitive cell is used to receive the object through the chromatic filter layer The optical signal of body reflection.

In some embodiments, the multiple pixel is self luminous colored spot light.

In some embodiments, the controlling switch of the multiple pixel and the pixel electrode are arranged at On the first surface, the multiple photo-sensitive cell is arranged on the second surface.

In some embodiments, the display module further comprises black-matrix layer, and the black-matrix layer is set On the second surface, the black-matrix layer offers perforate, and the perforate houses the photo-sensitive cell and can make institute State the optical signal that photo-sensitive cell receives the target object reflection.

In some embodiments, it is brilliant to include thin film transistor (TFT), CMOS complementary metal-oxide-semiconductor for the photo-sensitive cell One or more in body pipe, charge coupled cell.

In some embodiments, the multiple photo-sensitive cell is arranged in array.

In some embodiments, the corresponding spot light of each photo-sensitive cell is set, or the region where each spot light It is correspondingly arranged a photo-sensitive cell.

In some embodiments, the biological identification device further comprises a plurality of first scan line and a plurality of first number According to line, a plurality of first scan line and a plurality of first data wire insulation are arranged in a crossed manner, and the multiple photo-sensitive cell is sense Optotransistor, wherein, the grid of light sensing transistor is connected with the first scan line, and the source electrode of light sensing transistor and the first data wire connect Connect, the drain electrode of light sensing transistor is connected with the process circuit.

In some embodiments, the biological identification device further comprises the first drive circuit, with described a plurality of Scan line connects with a plurality of first data wire, for providing the first scanning signal to photosensitive crystal by the first scan line The grid of pipe, to activate light sensing transistor, first drive circuit further by the first data wire provide drive signal to The source electrode of the light sensing transistor of activation.

In some embodiments, the first drive circuit is further connected with the controller, is believed when performing biological characteristic During breath sensing, first drive circuit under the control of the controller, for driving the multiple photo-sensitive cell to work.

In some embodiments, the controlling switch is transistor switch, and the display module further comprises a plurality of Second scan line and a plurality of second data wire, a plurality of second scan line is intersected with a plurality of second data wire insulation to be set Put, wherein, second scan line is connected with the grid of the transistor switch, and second data wire is opened with the transistor The source electrode connection of pass, the transistor switch are connected with the pixel electrode.

In some embodiments, a plurality of first scan line be arranged in parallel with a plurality of second scan line, described A plurality of first data wire is be arranged in parallel with a plurality of second data wire, and the insulation of every one second scan line and the second data wire is handed over The transistor switch and the light sensing transistor are respectively arranged with fork.

In some embodiments, the biological identification device further comprises the second drive circuit, is swept with described second Retouch line and the second data wire connects respectively, and be further connected with the controller, the controller is by controlling described second Drive circuit drives point light source light-emitting, second drive circuit be used for by the second scan line provide the second scanning signal to The grid of transistor switch, to activate transistor switch, second drive circuit further by the second data wire and swashs The source electrode of transistor switch living provides drive signal to pixel electrode, to cause pixel region to light.

In some embodiments, the transistor switch and the light sensing transistor are thin film transistor (TFT), the crystalline substance The processing procedure of body pipe switch is identical with the processing procedure of the light sensing transistor.

In some embodiments, when controlling the spot light timesharing to light, the controller be used to controlling with it is described Several corresponding described spot lights of contact area are lighted successively, or several spot lights of preset distance are lighted simultaneously.

In some embodiments, the biological information includes finger print information, is formed by the finger print information The horizontal accuracy of fingerprint image is the half of the horizontal width of the pixel, and the vertical precision of the fingerprint image is the picture The half of the vertical width of vegetarian refreshments.

In some embodiments, in the display module display image, sensed when performing the biological information When, the controller is additionally operable to control other regions of the display module outside the contact area to continue display image.

In some embodiments, when the display module is in and puts out screen state, when the execution biological information During sensing, the controller puts out screen shape for controlling other regions of the display module outside the contact area to keep State.

In some embodiments, the multiple photo-sensitive cell is arranged in the display module.

In some embodiments, the biological identification device includes or is integrated into bio-identification chip.

In some embodiments, the biological information includes appointing in finger print information, palmprint information, ear line information Meaning is one or more of.

In some embodiments, the biological identification device is fingerprint identification device.

A kind of electronic installation of the utility model embodiment, including the as above bio-identification dress described in any embodiment Put.

Because the electronic installation includes the biological identification device, correspondingly, the electronic installation can have following main Want the benefit of three aspects.

First, biological identification device is thin compared to the thickness of the fingerprint identification module using camera, so as to have institute The thinner thickness of the electronic installation of biological identification device is stated, electronic installation is not influenceed and develops towards lightening direction；

Second, the sensing precision of biological identification device is smaller due to being influenceed by glass cover-plate thickness, therefore, when biology is known After other device is placed on below the cover sheet of electronic installation, the sensing precision of the biological identification device is impacted smaller, So as to improve the user experience of electronic installation；

3rd, when electronic installation includes display device, the part that biological identification device is used for IMAQ may be provided at In the display module of display device, so as to which the full frame collection for performing biological information of electronic installation can be realized, further improve The usage experience of user；In addition, biological identification device realizes spot light using some existing elements in display module simultaneously Deng so as to save material, reducing the holistic cost of electronic installation, and electronic installation is more lightening.

As described above, the IMAQ part of above-mentioned biological identification device can be integrated into bio-identification chip, it is correspondingly arranged In correct positions such as the front of electronic installation, the back side and sides, and, the outer surface of electronic installation can be both exposed, can also be set Put inside electronic installation, adjacent housings.In addition, the collecting part of the biological information of above-mentioned biological identification device can also be set Put in display module, so as to realize full frame execution biological information sensing.

The additional aspect and advantage of the utility model embodiment will be set forth in part in the description, partly will be under Become obvious in the description in face, or recognized by the practice of the utility model embodiment.

Brief description of the drawings

The above-mentioned and/or additional aspect and advantage of the utility model embodiment are from accompanying drawings below is combined to embodiment Description in will be apparent and be readily appreciated that, wherein：

Fig. 1 is the module diagram of the biological identification device of the utility model embodiment；

Fig. 2 is that the biological identification device of the utility model embodiment performs schematic diagram when biological information senses；

Fig. 3 is that the principle of the photo-sensitive cell reception reflected light signal of the biological identification device of the utility model embodiment is shown It is intended to；

Fig. 4 is the structural representation of the display module of the biological identification device of the utility model embodiment；

Fig. 5 is the structural representation of the biological identification device of the utility model embodiment；

Fig. 6 is the floor map of the display module of the biological identification device of the utility model embodiment；

Fig. 7 is the part-structure schematic diagram of the display module of the biological identification device of the utility model embodiment；

Fig. 8 is another floor map of the display module of the biological identification device of the utility model embodiment；

Fig. 9 is another part structural representation of the display module of the biological identification device of the utility model embodiment；

Figure 10 is the distribution schematic diagram of the photo-sensitive cell of the biological identification device of the utility model embodiment；

Figure 11 is point of the spot light corresponding with contact area of the biological identification device of the utility model embodiment Cloth schematic diagram；

Figure 12 is the another of the spot light corresponding with contact area of the biological identification device of the utility model embodiment One distribution schematic diagram；

Figure 13 is the floor map of the electronic installation of the utility model embodiment.

Embodiment

Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein Same or similar label represents same or similar element or the element with same or like function from beginning to end.Lead to below It is exemplary to cross the embodiment being described with reference to the drawings, and is only used for explaining the utility model, and it is not intended that to this practicality New limitation.

In description of the present utility model, it is to be understood that term " first ", " second " are only used for describing purpose, and It is not intended that instruction or hint relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, define One or more feature can be expressed or be implicitly included to the feature of " first ", " second ".In the utility model Description in, " multiple " are meant that two or more, unless otherwise specifically defined.

, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly Connection；It can be mechanical connection or electrical connection or can be in communication with each other；Can be joined directly together, can also be in Between medium be indirectly connected, can be connection or the interaction relationship of two elements of two element internals.For this area For those of ordinary skill, concrete meaning of the above-mentioned term in the utility model can be understood as the case may be.

Following disclosure provides many different embodiments or example is used for realizing different structure of the present utility model. In order to simplify disclosure of the present utility model, hereinafter to the parts of specific examples and it is set for describing.Certainly, they are only Example, and purpose does not lie in limitation the utility model.In addition, the utility model can in different examples repeat reference numerals And/or reference letter, this repetition are for purposes of simplicity and clarity, itself not indicate discussed various embodiments And/or the relation between setting.In addition, various specific techniques and the example of material that the utility model provides, but this Field those of ordinary skill can be appreciated that the application of other techniques and/or the use of other materials.

Further, described feature, structure can be incorporated in one or more embodiment party in any suitable manner In formula.In the following description, there is provided many details fully understand so as to provide to embodiment of the present utility model. However, one of ordinary skill in the art would recognize that, without one or more in the specific detail, or using other knots Structure, constituent element etc., the technical solution of the utility model can also be put into practice.In other cases, it is not shown in detail or describes known knot Structure is operated to avoid fuzzy the utility model.

Refer to Fig. 1 and Fig. 2, a kind of biological identification device 100 of the utility model embodiment, including multiple spot lights 102nd, touch-screen 104, controller 106, multiple photo-sensitive cells 108, process circuit 110, the first drive circuit 111 and second drive Dynamic circuit 113.

Touch-screen 104 is used to determine contact area 112 of the target object 200 on biological identification device 100.Controller 106 are used to control several points light source 102 timesharing corresponding with contact area 112 to light to launch optical signal to object Body.When performing biological information sensing, first drive circuit 111 is more for driving under the control of controller 106 Individual photo-sensitive cell 108 works.Multiple photo-sensitive cells 108 are used to receive the optical signal reflected by target object 200, and change reception The optical signal arrived is corresponding electric signal.Process circuit 110 is used for the biological characteristic that target object 200 is determined according to electric signal Information.The controller 106 is for example by controlling the second drive circuit 113 corresponding with contact area 112 correspondingly to control The timesharing of several points light source 102 is lighted to launch optical signal to target object.

In above-mentioned biological identification device 100, by biological identification device 100 is right to the contact area institute of target object 200 Some spot lights 102 answered are lighted using timesharing, so as to which optional single-point lights when target object 200 are scanned, and also may be used Select predetermined space several spot lights 102 remote enough luminous, correspondingly, the mutual shadow of light reflected by target object 200 Sound is sufficiently small；In addition, gathering light by photo-sensitive cell 108 using mirror-reflection principle, photo-sensitive cell 108 is by reflecting gloss The area in collection region and the thickness of medium are unrelated, so as to improve the precision of images of collection target object 200.Meanwhile timesharing is lighted Spot light 102 can form the image information of complete target object 200.

The biological identification device 100 may include or be integrated into bio-identification chip, for receiving connecing for target object 200 Touch or close, to sense the image information of target object 200.So, the application is not limited thereto, as described below, the life The part for being used to gather image in thing identification device 100 also may be formed in the display module of display device, the display module Finger for receiving user is contacted or approached, to sense the image information of target object 200, so that the display device Biological information sensing full frame can be performed, and then improves the usage experience of user, in addition, being also beneficial to that there is the biology to know The electronic installation of other device 100 develops towards lightening direction.

The biological information for example includes but does not limit to finger print information, any one in palmprint information, ear line information Kind is several.Correspondingly, the biological identification device is, for example, fingerprint identification device, or the identification of fingerprint identification device combination blood oxygen Device etc..

Specifically, in some instances, multiple spot lights 102 are arranged in array, and multiple photo-sensitive cells 108 are also in array Formula is arranged.So, ground is changed, in other examples, multiple spot lights 102 also can be in that Else Rule or non-regular are arranged, Multiple photo-sensitive cells 108 also can be in that Else Rule or non-regular are arranged.In addition, in the present embodiment, each photosensitive member Part 108 is set to realize preferable reception corresponding to a spot light 102.

In one example, Fig. 3 is referred to, lines with the arrow represent light in Fig. 3, it is illustrated that the first medium on the left side 300 thickness is small compared with the thickness of the second medium 302 on diagram the right, and photo-sensitive cell 108 is to first object thing on first medium 300 The collection area of the reflected light of body 304 (such as finger) with to the second target object 306 (such as finger) on second medium 302 The collection area of reflected light is the same, and then ensure that the precision of images of collection target object 200.First medium 300 and second is situated between Matter 302 can be the cover sheet of biological identification device 100.It should be noted that Fig. 3 simply schematically illustrates that biological characteristic is believed Light path during breath sensing, the position relationship of photo-sensitive cell 108 and spot light 102 rather than is defined in position relationship shown in Fig. 3, sense The position relationship of optical element 108 and spot light 102 can join the introduction of the embodiment behind the utility model.

It should be noted that the primary recipient cover sheet mirror-reflection of photo-sensitive cell 108 faced with the paddy of fingerprint returns The light come, the light that the ridge diffusing reflection of the primary recipient fingerprint of photo-sensitive cell 108 faced with the ridge of fingerprint is returned, wherein, The light of mirror-reflection will much be better than the light that diffusing reflection is returned, so as to which photo-sensitive cell 108 is according to cover sheet mirror-reflection After the line returned determines the position of the paddy of fingerprint, such as by exclusiveness, the position of the ridge of fingerprint can together with being determined, or Person, photo-sensitive cell 108 also can determine that the ridge of fingerprint and the position of paddy according to the light intensity received.

When carrying out biological information sensing, Fig. 2 is referred to, target object 200 can be placed in biological identification device 100 On the cover sheet 101 for the electronic installation applied, the parameter value in some region 114 of touch-screen 104 changes, touch-screen 104 some region 114 corresponds to contact area 112 of the target object 200 on biological identification device 100, thus touch-screen 104 can determine that contact area 112 of the target object 200 on biological identification device 100.

It is preferred that touch-screen 104 such as, but not limited to can determine target object 200 in life using capacitive induction principle Contact area 112 on thing identification device 100.Target object 200 is, for example, finger.

In some embodiments, Fig. 4 please be join, biological identification device 100 includes display module 116, and display module 116 is used Shown in lighting and performing image, display module 116 includes multiple pixels 118, and multiple pixels 118 are used as multiple spot lights Region where 102, or each pixel 118 is for respectively forming spot light 102.

In this way, spot light 102 is formed using the region where the pixel 118 or pixel 118 of display module 116, Display module 116 is enabled to be multiplexed with light source when biological information senses, so, biological identification device 100 is performing When biological information senses, without extra spot light, the cost of biological identification device 100 is saved.

In addition, controller 106, drive circuit 111,113 and process circuit 110 can be for example integrated in a chip, core Piece is connected with display module 116, or controller 106, drive circuit 111,113 and process circuit 110 can be arranged on by oneself it is aobvious Show outside module 116, and be connected respectively with display module 116.

In some embodiments, multiple pixels 118 are self luminous spot light 102, or, display module 116 enters one Step includes backlight 120, and backlight 120 is area source, controller 106 by control multiple pixels 118 with correspond to control come Whether it is emitted from the light of backlight 120 from multiple pixels 118, the region difference of the corresponding backlight 120 of each pixel 118 Form a spot light 102.

In this way, the species range of choice of display module 116 is extensive so that the application of biological identification device 100 is big.

Specifically, when pixel 118 is self luminous spot light 102, display module 116 can be Organic Light Emitting Diode (OLED) display module, OLED display modules can be active matrix organic LED (AMOLED) or passive organic light-emitting Diode (PMOLED) display module.When display module 116 includes backlight 120, display module 116 is liquid crystal display mode Group.

More specifically, when display module 116 is organic light-emitting diode display module, target is determined in touch-screen 104 After contact area 112 of the object on biological identification device 100, controller 106 controls corresponding with contact area 112 some The individual timesharing of pixel 118 is lighted to launch optical signal to target object 200.

When display module 116 is liquid crystal display die set, determine that target object 200 fills in bio-identification in touch-screen 104 After putting the contact area 112 on 100, controller 106 controls several pixel 118 timesharing corresponding with contact area 112 Through the light of backlight 120, so that the light of backlight 120 is emitted optical signal to target from several timesharing of pixel 118 Object 200, to realize that the timesharing of spot light 102 is lighted.In such embodiment, pixel 118 is opened equivalent to light Close, controller 106 controls pixel 118 so that whether the light of backlight 120 is emitted from pixel 118.

In some embodiments, touch-screen 104 includes touch sensitive layer 105 and touch detection circuit (not indicating), institute Touch detection circuit is stated to be used to drive touch-sensing layer 105 to perform touch-sensing to determine contact area 112, wherein, it is described to touch Touch inductive layer 105 and be arranged on the top of display module 116, or be arranged on inside display module 116.The touch detection circuit is for example By the SECO of the controller 106.Wherein, when the touch sensitive layer 105 is arranged on 116 inside of display module, touch It can be extra electrode layer to touch inductive layer 105, or the conducting element of multiplexing display module 116.

In this way, the set-up mode of touch-screen 104 is flexible, the cost of biological identification device 100 is reduced.

Specifically, in one example, the touch sensitive layer 105 of touch-screen 104 is arranged on the top of display module 116, So touch-screen 104 can be separately made, and after the completion of manufacture, the touch sensitive layer 105 of touch-screen 104 is mounted directly on into display The top of module 116, as shown in figure 5, such manufacturing process is simple.

In another example, the touch sensitive layer 105 of touch-screen 104 is arranged on inside display module 116, now, can The induction electrode for the touch-screen 104 being multiplexed with using some electrodes in display module 116, it on the one hand can reduce bio-identification dress 100 cost is put, on the other hand, also reduces the thickness of biological identification device 100.

In the illustrated example shown in fig. 2, cover sheet 101 is arranged on the top of display module 116.If it is appreciated that touch When the touch sensitive layer 105 of screen 104 is arranged on the top of display module 116, the touch sensitive layer 105 of touch-screen 104 is positioned at aobvious Show between module 116 and cover sheet 101.

In some embodiments, Fig. 4 please be join, display module 116 includes relative first substrate 122 and second substrate 124, first substrate 122 includes the first surface 126 towards second substrate 124, and second substrate 124 is included towards first substrate 122 second surface 128, multiple pixels 118 are arranged between first substrate 122 and second substrate 124, each pixel 118 include controlling switch 130, pixel electrode 132 and public electrode 134.

In this way, controller 106 for example can be by controlling the conducting and cut-off of controlling switch 130 so that where pixel 118 Whether printing opacity is to realize lighting for spot light 102 in region.

Specifically, in one example, when above-mentioned display module 116 is liquid crystal display die set, the back of the body of liquid crystal display die set Light source 120 may be provided at the outside of second substrate 124, and the backlight 120 of liquid crystal display die set is area source, and controller 106 is logical The conducting and cut-off of control controlling switch 130 are crossed, and then controls whether the light source from backlight 120 is emitted from pixel 118, To realize whether the spot light 102 that the region of backlight 120 corresponding with pixel 118 is formed is lighted.Controlling switch 130 can For thin film transistor (TFT) (TFT).

Further, in one example, the reusable of public electrode 134 be touch-screen 104 induction electrode, induction electrode The touch sensitive layer of touch-screen 104 can be formed.Wherein, the public electrode 134 includes the multiple sub-electrodes being separated.

It should be noted that Fig. 4 is the one of which structure for illustrating display module 116, and should not be construed as to this The limitation of utility model.

In some embodiments, please join Fig. 6, multiple photo-sensitive cells 108, multiple pixels 118 controlling switch 130 with And pixel electrode 132 is arranged on first surface 126.

In this way, photo-sensitive cell can be formed while controlling switch 130, pixel electrode 132 are manufactured on first substrate 122 108, process costs will not be increased, so that setting the cost of photo-sensitive cell 108 relatively low.

In one example, controlling switch 130 is, for example, thin film transistor (TFT) (TFT), using gold-tinted processing procedure (photolithography) multiple senses are formed while controlling switch 130 and pixel electrode 132 are formed on first substrate 122 Optical element 108, and then realize the setting of multiple photo-sensitive cells 108.

The controlling switch 130 is, for example, transistor switch, and the photo-sensitive cell 108 is, for example, light sensing transistor, and is worked as When the controlling switch 130 and the photo-sensitive cell 108 are TFT, the two is such as, but not limited to made up of identical technique.Separately Outside, when the photo-sensitive cell 108 is COMS transistors or CCD, the photo-sensitive cell 108 and the system of the controlling switch 130 Journey for example also can be different.

It is pointed out that in the utility model embodiment, when display module 116 is liquid crystal display die set, controlling System switch 130, pixel electrode 132 and photo-sensitive cell 108 are formed on first substrate 122 and formed in public electrode 134 the After on two substrates 124, liquid crystal is injected between two substrates of display module 116, is packaged afterwards with packaging body 400, And form liquid crystal display die set.Supporter 402 can be set between two substrates to support display module 116.

In some embodiments, Fig. 4 and Fig. 7 please be join, display module 116 further comprises being in latticed black matrix" Layer 136, photo-sensitive cell 108, which corresponds in the net region 138 of black-matrix layer 136, to be set, and for receiving through grid regions The optical signal that the target object 200 in domain 138 reflects.

In this way, even if black-matrix layer 136 be present in display module 116, it is also possible that photo-sensitive cell 108 receives object The optical signal that body 200 reflects.

Specifically, black-matrix layer 136 can be applied to liquid crystal display die set and organic light-emitting diode display module.One In individual example, a net region 138 of black-matrix layer 136 may correspond to the area of a pixel 118 of display module 116 Domain, a photo-sensitive cell 108 correspond to a net region 138.

In some embodiments, Fig. 7 and Fig. 9 please be join, black-matrix layer 136 is arranged on second surface 128.

In this way, forming black-matrix layer 136 on second substrate 124, the processing procedure of display module 116 can be simplified.One In individual example, black-matrix layer 136 can be formed on second surface 128 by way of printing.

In some embodiments, Fig. 4, Fig. 7 and Fig. 9 please be join, display module 116 further comprises chromatic filter layer 140, Chromatic filter layer 140 is formed in the net region 138 of black-matrix layer 136, and photo-sensitive cell 108 is used to receive through colorized optical filtering The optical signal that the target object 200 of layer 140 reflects.

In this way, chromatic filter layer 140 can be applied to liquid crystal display die set and organic light-emitting diode display module, to realize Display module 116 shows the image of colour.

Specifically, chromatic filter layer 140 for example may include three color layers of red, green, blue, the arrangement mode of three color layers Can be consistent with the arrangement mode of the pixel 118 of display module 116.

When chromatic filter layer 140 is applied to organic light-emitting diode display module, organic light-emitting diode display module Self-luminous pixel sends is white light, white light can be shown as glory color after passing through chromatic filter layer 140.

In some embodiments, multiple pixels 118 are self luminous colored spot light.

In this way, directly can use the self-luminous pixel 118 of display module 116 as spot light, known with reducing biology The cost of other device 100.

Specifically, in one example, when display module 116 is organic light-emitting diode display module, display module 116 pixel 118 is self-luminous, and multiple pixels 118 of display module 116 may include the luminous pixel of three primary colors, The pixel of pixel, blue light emitting and the pixel of green luminescence such as red light-emitting, each self luminous pixel 118 can Realized using Organic Light Emitting Diode.

In some embodiments, Fig. 8 and Fig. 9, the controlling switch 130 and pixel electrode of multiple pixels 118 please be join 132 are arranged on first surface 126, and multiple photo-sensitive cells 108 are arranged on second surface 128.

In this way, controlling switch 130 and pixel electrode 132 are provided separately with photo-sensitive cell 108, it is possible to reduce photo-sensitive cell The adverse effect of 108 pairs of controlling switches 130 and pixel electrode 132.

In some embodiments, display module 116 further comprises black-matrix layer 136, and black-matrix layer 136 is set On second surface 128, black-matrix layer 136 offers perforate 142, and perforate 142 houses photo-sensitive cell 108 and can made photosensitive Element 108 receives the optical signal that target object 200 reflects.

In this way, the aperture opening ratio influence that photo-sensitive cell 108 is contained in black-matrix layer 136 on display module 116 is smaller.

In addition, when electrically connecting process circuit 110, the first drive circuit 111 and photo-sensitive cell 108, process circuit 110, First drive circuit 111 may be formed on the lower surface 144 of black-matrix layer 136 with the connecting line of photo-sensitive cell 108 respectively, so Extend afterwards along the hole wall of perforate 142 to photo-sensitive cell 108 and connect photo-sensitive cell 108, to realize the transmission of signal, it is preferred that Connecting line can use transparent connecting line.

In some embodiments, photo-sensitive cell 108 is the photo-sensitive cell of semiconductor photosensitive element or other suitable types, Wherein, the semiconductor photosensitive element for example include but is not limited to thin film transistor (TFT) (Thin Film Transistor, TFT), CMOS complementary metal-oxide-semiconductor (Complementary Metal Oxide Semiconductor, CMOS) crystal Pipe, any one or a few in charge coupled cell (Charge-coupled Device, CCD), or other suitable classes The semiconductor photosensitive element of type, the utility model are not limited to this.The photo-sensitive cell 108 for example can also be photosensitive two pole Pipe.

For example, so that photo-sensitive cell 108 is TFT as an example, by using TFT active area materials to light sensitive, so as to real The collection of existing light.

In this way, multiple photo-sensitive cells 108 are directly manufactured using manufacture of semiconductor so that biological identification device 100 into This is relatively low.

For example, please join Figure 10, in embodiment of the present utility model, photo-sensitive cell 108 can be arranged in array On one surface 126.For example further comprise a plurality of first scan line G1 on the first surface 126 of the biological identification device 100 It is arranged in a crossed manner with being insulated with a plurality of first data wire D1, a plurality of first scan line G1 and a plurality of first data wire D1. The multiple photo-sensitive cell 108 is, for example, light sensing transistor.Wherein, the grid of light sensing transistor 101 and the first scan line G1 connect Connect, the source electrode of light sensing transistor is connected with the first data wire D1, and the drain electrode of light sensing transistor is connected with the process circuit 110. The a plurality of first scan line G1 and a plurality of first data wire D1 are connected with first drive circuit 111.

First drive circuit 111 is used to provide the first scanning signal to light sensing transistor by the first scan line G1 Grid, to activate light sensing transistor, first drive circuit 111 further by the first data wire D1 provide drive signal to The source electrode of the light sensing transistor of activation.

It should be noted that the circuit structure of the drive circuit 111 of photo-sensitive cell 108 and first recited above itself and its Therebetween circuit relationships are the embodiment of the application, and the application is not limited thereto, the photo-sensitive cell 108 and The circuit structure of one drive circuit 111 itself and its circuit relationships therebetween are alternatively other suitable embodiments, only The light for wanting first drive circuit 111 that the executable sensing target object of photo-sensitive cell 108 can be driven to reflect, and it is right Optical signal carries out being converted to electric signal.

Fig. 6 is please referred to, the controlling switch 130 is, for example, transistor switch, and the display module 116 is further wrapped Include a plurality of second scan line G2 and a plurality of second data wire D2, a plurality of second scan line G2 and a plurality of second data wire D2 insulation is arranged in a crossed manner, wherein, the second scan line G2 is connected with the grid of the transistor switch, second data wire D2 is connected with the source electrode of the transistor switch, and the transistor switch is connected with the pixel electrode 132.

Second drive circuit 113 is connected respectively with the second scan line G2 and the second data wire D2, and further It is connected with the controller 106.The controller 106 is by controlling second drive circuit 113 to drive spot light 102 to send out Light, second drive circuit 113 are used to provide grid of second scanning signal to transistor switch by the second scan line G2, To activate transistor switch, second drive circuit 113 is further opened by the second data wire D2 and activation transistor The source electrode of pass provides drive signal to pixel electrode 132, to cause the region of pixel 118 to light.

Second drive circuit 113 can be further used for driving the execution image of pixel 118 to show.

It should be noted that the structure of display module 116 recited above is the embodiment of the application, the application is simultaneously This is not limited to, the structure of the display module 116 is alternatively other suitable embodiments, for example, OLED display module Structure just have with above-mentioned structure it is significantly different, but it is also suitable for the application.For those of ordinary skill in the art Speech, meeting the display module of the application embodiment can be readily apparent that

The a plurality of first scan line G1 and a plurality of second scan line G2 for example but does not limit to and be arranged in parallel, described more Bar the first data wire D1 and a plurality of second data wire D2 for example but does not limit to and be arranged in parallel, every one second scan line G2 and Two data wire D2 insulation infall is respectively arranged with the transistor switch and the light sensing transistor.

It is pointed out that the company of controlling switch 130 of the connecting line of connection photo-sensitive cell 108 with being connected pixel 118 Wiring is disposed on first surface 126.

In some embodiments, when controlling the timesharing of spot light 102 to light, controller 106 is used to control and contact zone The corresponding several points light source 102 in domain 112 is lighted successively, or several spot lights 102 of preset distance are lighted simultaneously.

In this way, realizing the mode variation that timesharing is lighted, be advantageous to the design flexibility of controller 106.

Specifically, in one example, multiple spot lights 102 are arranged in array, if corresponding with contact area 112 Dry spot light 102 also corresponds to arranges in array, controller 106 can control several points light source 102 in array according to from Under up to, order from left to right is lighted successively.So, ground is changed, in other examples, controller 106 also can be according to other Rule or irregular sequential control several points light source 102 are lighted successively.

It please join Figure 11, Figure 11 shows a kind of arrangement side of the several points light source 102 corresponding with contact area 112 Formula.Several points light source 102 arrangement corresponding with contact area 112 arranges totally 20 spot lights 102 for 5 rows 4, for convenience of saying It is bright, 20 spot lights 102 are numbered respectively is P11, P12, P13 ..., P53, P54.

When performing biological information sensing, controller 106 controls spot light P11 to light, and controls other spot lights 102 Extinguish, the photo-sensitive cell 108 around spot light P11 receives the optical signal that target object 200 reflects.

Afterwards, controller 106 controls spot light P12 to light, and controls other spot lights 102 to extinguish, around spot light P12 Photo-sensitive cell 108 receives the optical signal that target object 200 reflects.By that analogy, controller 106 is completed and the phase of contact area 112 The timesharing of corresponding all 20 spot lights 102 is lighted, and then process circuit 110 receives the telecommunications of the output of photo-sensitive cell 108 Number to determine the biological information of target object 200.

In another example, preset distance can be array inner room every a line spot light, a few row spot lights, a row spot light Or the distance of a few row spot lights.

Specifically, Figure 12 please be join, in such example, several points light source 102 row corresponding with contact area 112 Cloth is that 6 rows 4 arrange totally 24 spot lights 102, for convenience of description, 24 spot lights 102 are numbered respectively is T11, T12, T13 ..., T63、T64.In the example shown, preset distance is two row spot lights of interval.

When performing biological information sensing, controller 106 controls spot light T11 and T41 to light simultaneously, and control is other Spot light 102 extinguishes, and the photo-sensitive cell 108 around spot light T11 and T41 receives the optical signal that target object 200 reflects.

Afterwards, controller 106 controls spot light T12 and T42 to light simultaneously, controls other spot lights 102 to extinguish, spot light The photo-sensitive cell 108 of T12 and T42 surroundings receives the optical signal that target object 200 reflects.By that analogy, controller 106 complete with The timesharing of corresponding all 24 spot lights 102 of contact area 112 is lighted, and then process circuit 110 receives photo-sensitive cell The electric signals of 108 outputs are to determine the biological information of target object 200.

It is pointed out that above-mentioned example is some examples for understanding the utility model embodiment for convenience and making Son, and should not be construed as the limitation to scope of protection of the utility model.

In some embodiments, the horizontal accuracy of the image of the target object 200 formed by biological information is The half of the horizontal width of pixel, the vertical precision of the image of target object 200 are the half of the vertical width of pixel.

In this way, the electronic installation of main flow, such as mobile phone, tablet personal computer and notebook computer etc., target object can be realized The acquisition precision of 200 image, make the application of biological identification device 100 wider.

Specifically, when the screen of electronic installation is 5 cun (such as mobile phone screens), and resolution ratio is 1920x1080, pixel 118 width about 60um, the acquisition precision of the image of target object 200 is horizontal 10um, vertical 30um.

When the screen of electronic installation is 13.3 cun (such as notebook computer screens), when resolution ratio is 1366x768, pixel The width about 220um of point 118, the acquisition precision of the image of target object 200 is horizontal 36um, vertical 110um.

When the screen of electronic installation is 22 cun (such as indicator screens of personal computer), resolution ratio 1920x1080 When, the width about 270um of pixel 118, the acquisition precision of the image of target object 200 is horizontal 45um, vertical 135um.

So that biological information is finger print information as an example, from the foregoing, it will be observed that the screen of the electronic installation of main flow can be realized Differentiate the fingerprint image acquisition of fingerprint.

In some embodiments, in 116 display image of display module, when performing biological information sensing, control Device 106 processed is additionally operable to control other regions 146 of the display module 116 outside contact area 112 to continue display image.

In this way, while biological information sensing is performed, other regions 146 of display module 116 are not interfered with Image is shown, ensure that Consumer's Experience.

Specifically, incorporated by reference to Fig. 2, when biological information sensing is performed, finger 200 is pressed against bio-identification dress Put on 100, controller 106 identifies contact area 112 of the finger on biological identification device 100, and then determines display module 116 other regions 146 in addition to contact area 112, then controller 106 control the spot light corresponding with contact area 112 102 timesharing are lighted to complete the collection of biological information.At the same time, controller 106 controls other areas of display module 116 Continue display image in domain 146.

In some embodiments, when display module 116 is in and puts out screen state, sensed when performing biological information When, controller 106 puts out screen state for controlling other regions 146 of the display module 116 outside contact area 112 to keep.

In this way, while biological information sensing is performed, do not interfere with other regions 146 of display module 116 In putting out screen state, Consumer's Experience ensure that.

Specifically, when biological information sensing is performed, finger 200 is pressed against on biological identification device 100, control Device 106 processed identifies the contact area 112 of biological identification device 100, and then determines display module 116 in addition to contact area 112 Other regions 146, then controller 106 control spot light 102 timesharing corresponding with contact area 112 to light to complete to give birth to The collection of thing characteristic information.At the same time, other regions 146 of the control of controller 106 display module 116, which are kept, puts out screen shape State.

It please join Figure 13, a kind of display device 400 of the utility model embodiment, including the as above life of any embodiment Thing identification device 100.

In above-mentioned display device 400, because biological identification device 100 is to corresponding to the contact area of target object 200 Some spot lights 102 are lighted using timesharing, so as to which optional single-point lights when target object 200 are scanned, and also may be selected Predetermined space several spot lights 102 remote enough are luminous, and correspondingly, the light reflected by target object 200 influences each other foot It is enough small；In addition, gathering light by photo-sensitive cell 108 using mirror-reflection principle, photo-sensitive cell 108 is by reflecting light collection zone The area in domain and the thickness of medium are unrelated, so as to improve the precision of images of collection target object 200.Meanwhile timesharing point bright spot light Source 102 can form the image information of complete target object 200.

The display module 116 is, for example, the image-displaying member of display device 400, because the photo-sensitive cell 108 is set Put in the display module 116, so as to, the display device 400 can realize full frame execution biological information sensing, and then Improve the usage experience of user.In addition, it is also beneficial to have the electronic installation 500 of the display device 400 towards lightening side To development.Further, because biological identification device 100 is multiplexed the grade element of spot light 102 of display device, so as to can also save Manufacturing cost.

Specifically, display device 400 can be but be not limited to liquid crystal display device or organic LED display device.One As, display device 400 includes cover sheet 101 (medium, as shown in Figure 3), is arranged on the outermost layer of display device 400.With Family finger can be operated in 101 enterprising line slip of cover sheet, click etc. to control the display of display device 400.Performing biology When characteristic information senses, finger can be placed on cover sheet 101, and touch-screen 104 determines the contact of finger on the display apparatus Region 112, biological identification device 100 can realize the collection of biological information.

Please join Figure 13 again, a kind of electronic installation 500 of the utility model embodiment, including as above any embodiment Biological identification device 100.

In above-mentioned electronic installation 500, because biological identification device 100 is to corresponding to the contact area of target object 200 Some spot lights 102 are lighted using timesharing, so as to which optional single-point lights when target object 200 are scanned, and also may be selected Predetermined space several spot lights 102 remote enough are luminous, and correspondingly, the light reflected by target object 200 influences each other foot It is enough small；In addition, gathering light by photo-sensitive cell 108 using mirror-reflection principle, photo-sensitive cell 108 is by reflecting light collection zone The area in domain and the thickness of medium are unrelated, so as to improve the precision of images of collection target object 200.Meanwhile timesharing point bright spot light Source 102 can form the image information of complete target object 200..

Specifically, electronic installation 500 is as being consumption electronic products or household formula electronic product or vehicular electronic product. Wherein, consumption electronic products be such as mobile phone, tablet personal computer, notebook computer, tabletop display, computer all-in-one machine are all kinds of should With the electronic product of biological identification technology.Household formula electronic product is such as intelligent door lock, TV, refrigerator types of applications biology are known The electronic product of other technology.Vehicular electronic product is such as automatic navigator, vehicle-carrying DVD.

In the example in figure 13, electronic installation 500 is mobile phone, and the front of mobile phone is provided with touch-screen 104 and display dress 400 are put, in one example, when the biological information for needing to gather is finger print information, when performing finger print information collection, Target object 200 is finger, and finger is placed in touch-screen 104 and display device 400 so that touch-screen 104 can determine Contact area of the finger on biological identification device 100, biological identification device 100 carry out the collection of subsequent fingerprint information.

So, ground is changed, in other embodiments, the biological identification device 100 can also be not arranged in the display On device 400, the IMAQ part of the biological identification device 100 can be integrated into bio-identification chip, be correspondingly arranged at electricity The correct positions such as front, the back side and the side of sub-device 500, and, the outer surface of electronic installation 500 can be both exposed, also may be used It is arranged on inside electronic installation 500, adjacent housings.

In the description of this specification, reference term " embodiment ", " some embodiments ", " schematically implementation The description of mode ", " example ", " specific example " or " some examples " etc. means with reference to the embodiment or example description Specific features, structure, material or feature are contained at least one embodiment or example of the present utility model.In this explanation In book, identical embodiment or example are not necessarily referring to the schematic representation of above-mentioned term.Moreover, the specific spy of description Sign, structure, material or feature can combine in an appropriate manner in any one or more embodiments or example.

In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or Implicitly include at least one this feature.In description of the present utility model, " multiple " are meant that at least two, such as two It is individual, three etc., unless otherwise specifically defined.

Although embodiment of the present utility model has been shown and described above, it is to be understood that above-mentioned embodiment party Formula is exemplary, it is impossible to is interpreted as to limitation of the present utility model, one of ordinary skill in the art is of the present utility model In the range of above-mentioned embodiment can be changed, change, replace and modification.

Claims

A kind of 1. biological identification device, it is characterised in that including：

Multiple spot lights；

Touch-screen, for determining contact area of the target object on the biological identification device；

Controller, for controlling several described spot light timesharing corresponding with the contact area to light to launch optical signal To the target object；

Multiple photo-sensitive cells, for receiving the optical signal reflected by the target object, and the optical signal received are changed as phase The electric signal answered；With

Process circuit, for determining the biological information of the target object according to the electric signal.
2. biological identification device as claimed in claim 1, it is characterised in that the biological identification device includes display module, The display module shows that the display module includes multiple pixels, the multiple pixel for lighting and performing image For being for respectively forming the spot light as the region where the multiple spot light, or each pixel.
3. biological identification device as claimed in claim 2, it is characterised in that the multiple pixel is self luminous light Source, or, the display module further comprise backlight, and the backlight is area source, and the controller passes through described in control Multiple pixels control whether the light from the backlight is emitted from the multiple pixel with corresponding, each pixel The region of the corresponding backlight of point forms a spot light respectively.
4. biological identification device as claimed in claim 3, it is characterised in that when the multiple pixel is self luminous light During source, the display module is organic light-emitting diode display module；It is described when the display module includes the backlight Display module is liquid crystal display die set.
5. biological identification device as claimed in claim 2, it is characterised in that the touch-screen includes touch sensitive layer and touch Circuit is detected, the touch detection circuit is used to drive the touch sensitive layer to perform touch-sensing to determine the contact zone Domain, wherein, the touch sensitive layer is arranged on above the display module, or is arranged on inside the display module.
6. biological identification device as claimed in claim 2, it is characterised in that the display module includes relative first substrate And second substrate, the first substrate include the first surface towards the second substrate, the second substrate is included towards institute The second surface of first substrate is stated, the multiple pixel is arranged between the first substrate and the second substrate, each The pixel includes controlling switch, pixel electrode and public electrode.
7. biological identification device as claimed in claim 6, it is characterised in that the multiple photo-sensitive cell, the multiple pixel The controlling switch and the pixel electrode of point are respectively provided with the first surface.
8. biological identification device as claimed in claim 7, it is characterised in that the display module further comprises in latticed Black-matrix layer, the photo-sensitive cell correspond to the black-matrix layer net region in set, and for reception through The optical signal of the target object reflection of the net region.
9. biological identification device as claimed in claim 8, it is characterised in that the black-matrix layer is arranged on second table On face.
10. biological identification device as claimed in claim 8 or 9, it is characterised in that the display module further comprises colour Filter layer, the chromatic filter layer are formed in the net region of the black-matrix layer, the photo-sensitive cell be used to receiving through The optical signal of the target object reflection of the chromatic filter layer.
11. biological identification device as claimed in claim 8 or 9, it is characterised in that the multiple pixel is self luminous coloured silk Color dot light source.
12. biological identification device as claimed in claim 6, it is characterised in that the controlling switch of the multiple pixel And the pixel electrode is respectively provided with the first surface, the multiple photo-sensitive cell is arranged on the second surface.
13. biological identification device as claimed in claim 12, it is characterised in that the display module further comprises black square Battle array layer, the black-matrix layer are arranged on the second surface, and the black-matrix layer offers perforate, and the perforate houses The photo-sensitive cell simultaneously can make the photo-sensitive cell receive the optical signal that the target object reflects.
14. biological identification device as claimed in claim 1, it is characterised in that the photo-sensitive cell include thin film transistor (TFT), mutually One or more in apotype metal oxide semiconductor transistor, charge coupled cell.
15. biological identification device as claimed in claim 1, it is characterised in that the multiple photo-sensitive cell is arranged in array.
16. biological identification device as claimed in claim 1 or 2, it is characterised in that described in each photo-sensitive cell corresponding one Spot light is set, or the region where each spot light is correspondingly arranged a photo-sensitive cell.
17. biological identification device as claimed in claim 6, it is characterised in that the biological identification device further comprises more The scan line of bar first and a plurality of first data wire, a plurality of first scan line is intersected with a plurality of first data wire insulation to be set To put, the multiple photo-sensitive cell is light sensing transistor, wherein, the grid of the light sensing transistor connects with first scan line Connect, the source electrode of the light sensing transistor is connected with first data wire, the drain electrode of the light sensing transistor and the processing electricity Road connects.
18. biological identification device as claimed in claim 17, it is characterised in that the biological identification device further comprises One drive circuit, it is connected with a plurality of first scan line and a plurality of first data wire, for being scanned by described first Line provides grid of first scanning signal to the light sensing transistor, to activate the light sensing transistor, the first driving electricity Road is further used for providing source electrode of the drive signal to the light sensing transistor of activation by first data wire.
19. biological identification device as claimed in claim 18, it is characterised in that first drive circuit further with it is described Controller connect, when perform biological information sensing when, first drive circuit under the control of the controller, for driving The multiple photo-sensitive cell work.
20. biological identification device as claimed in claim 18, it is characterised in that the controlling switch is transistor switch, institute State display module and further comprise a plurality of second scan line and a plurality of second data wire, a plurality of second scan line with it is described more The insulation of the data wire of bar second is arranged in a crossed manner, wherein, second scan line is connected with the grid of the transistor switch, and described the Two data wires are connected with the source electrode of the transistor switch, and the transistor switch is connected with the pixel electrode.
21. biological identification device as claimed in claim 20, it is characterised in that a plurality of first scan line with it is described a plurality of Second scan line be arranged in parallel, and a plurality of first data wire be arranged in parallel with a plurality of second data wire, and every 1 second sweeps The insulation infall for retouching line and the second data wire is respectively arranged with the transistor switch and the light sensing transistor.
22. biological identification device as claimed in claim 20, it is characterised in that the biological identification device further comprises Two drive circuits, it is connected with second scan line and second data wire, and is further connected with the controller respectively, The controller is used to drive the point light source light-emitting by controlling second drive circuit, and second drive circuit is used In providing grid of second scanning signal to the transistor switch by second scan line, opened with activating the transistor Close, second drive circuit is further used for the source electrode of the transistor switch by second data wire and activation Drive signal is provided to the pixel electrode, to cause the region where the pixel to light.
23. the biological identification device as described in claim 20 or 21, it is characterised in that the transistor switch with it is described photosensitive Transistor is thin film transistor (TFT), and the processing procedure of the transistor switch is identical with the processing procedure of the light sensing transistor.
24. biological identification device as claimed in claim 1, it is characterised in that when controlling the spot light timesharing to light, institute State controller be used for control several described spot lights corresponding with the contact area light successively, or preset distance is several The individual spot light is lighted simultaneously.
25. biological identification device as claimed in claim 2, it is characterised in that the biological information includes finger print information, The horizontal accuracy of the fingerprint image formed by the finger print information for the pixel horizontal width half, the fingerprint The vertical precision of image is the half of the vertical width of the pixel.
26. biological identification device as claimed in claim 2, it is characterised in that in the display module display image, when holding When the row biological information senses, the controller is additionally operable to control its of the display module outside the contact area Continue display image in its region.
27. biological identification device as claimed in claim 2, it is characterised in that when the display module is in and puts out screen state, When performing the biological information sensing, the controller is used to control the display module outside the contact area Other regions, which are kept, puts out screen state.
28. biological identification device as claimed in claim 2, it is characterised in that the multiple photo-sensitive cell is arranged on described aobvious Show in module.
29. biological identification device as claimed in claim 1, it is characterised in that the biological identification device includes or is integrated into Bio-identification chip.
30. biological identification device as claimed in claim 1, it is characterised in that the biological information include finger print information, Any one or a few in palmprint information, ear line information.
31. biological identification device as claimed in claim 1, it is characterised in that the biological identification device fills for fingerprint recognition Put.
32. a kind of electronic installation, it is characterised in that including the biological identification device as described in claim any one of 1-31.