CN104063704A - Image collection device, liquid crystal terminal device and fingerprint and image collection method - Google Patents
Image collection device, liquid crystal terminal device and fingerprint and image collection method Download PDFInfo
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- CN104063704A CN104063704A CN201410281377.9A CN201410281377A CN104063704A CN 104063704 A CN104063704 A CN 104063704A CN 201410281377 A CN201410281377 A CN 201410281377A CN 104063704 A CN104063704 A CN 104063704A
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 199
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000003384 imaging method Methods 0.000 claims abstract description 154
- 238000006243 chemical reaction Methods 0.000 claims abstract description 63
- 238000002834 transmittance Methods 0.000 claims description 32
- 230000005540 biological transmission Effects 0.000 claims description 26
- 230000015572 biosynthetic process Effects 0.000 claims description 8
- 230000003287 optical effect Effects 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 3
- 230000005693 optoelectronics Effects 0.000 claims description 3
- 230000001678 irradiating effect Effects 0.000 claims 2
- 238000012795 verification Methods 0.000 abstract 1
- 238000005520 cutting process Methods 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 5
- 238000007639 printing Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 241001061260 Emmelichthys struhsakeri Species 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1318—Sensors therefor using electro-optical elements or layers, e.g. electroluminescent sensing
Abstract
The invention discloses an image collection device, a collector, a liquid crystal terminal device and a fingerprint and image collection method. On the basis of the pin-hole imaging principle, an ultrathin fingerprint collection instrument in any size can be formed, and the ultrathin fingerprint collection instrument can be further combined with a liquid crystal display screen to achieve the function of fingerprint collection; or, the ultrathin image collection device can be formed so as to collect images of universal targets. The liquid crystal terminal device comprises a liquid crystal display assembly. The liquid crystal display assembly is at least composed of a liquid crystal plate and a backlight module. The backlight module at least comprises a reflecting piece and a back plate. One or more imaging holes are formed in the reflecting piece and/or the back plate. Photovoltaic conversion sensors are arranged in the positions corresponding to the imaging holes. By conducting the structure improvement on the liquid crystal display screen according to the pin-hole imaging principle, the liquid crystal display screen can collect fingerprints and support the terminal device to complete screen unlocking, account verification and other operation needing personal identity authentication through fingerprint identification.
Description
Technical field
The present invention relates to a kind of image collecting device, collector, liquid crystal terminal equipment and for fingerprint, the image-pickup method of liquid crystal board.
Background technology
The collection of fingerprint, image at present mainly contains two kinds of methods.A kind of is that based semiconductor chip directly gathers fingerprint; A kind of is optically detecting method based on total reflection principle.These two kinds of methods respectively have its relative merits.Traditional optical finger print collecting device size is larger, is difficult to meet the requirement of mobile device to thickness, size etc.; And the shortcoming such as that semi-conductor chip fingerprint collecting method exists is antistatic, resistance to corrosion is not enough.
Camera is a kind of common device, at industry-by-industry, has important application.Camera is generally comprised of optical lens group, shutter device, photosensitive-member (as the imageing sensor of film, numeral etc.) etc.In a lot of occasions, need to have that size is less, the camera of thin thickness, for example the internal state at pipeline detection, complex apparatus or production line monitors.And traditional camera size is larger, can not meet these requirements.
Summary of the invention
For the problems referred to above, the object of the present invention is to provide a kind of image collecting device, collector, liquid crystal terminal equipment and for the fingerprint collecting method of liquid crystal board, thereby size and the thickness of finger print acquisition module in reduction equipment, provide great convenience to equipment profile and software interface design greatly.
For achieving the above object, a kind of liquid crystal terminal equipment of the present invention, comprise a LCD assembly, described LCD assembly at least comprises liquid crystal board, in liquid crystal terminal equipment, the position of corresponding liquid crystal board is provided with camera assembly or collector, and described camera assembly or collector see through the fingerprint that liquid crystal board gathers liquid crystal board opposite side under liquid crystal board light transmission state.
For achieving the above object, a kind of liquid crystal terminal equipment of the present invention, comprise a LCD assembly, described LCD assembly is at least comprised of liquid crystal board and backlight module, wherein, in described backlight module, the position of corresponding liquid crystal board is provided with camera assembly or collector, and described camera assembly or collector see through the fingerprint that liquid crystal board gathers liquid crystal board opposite side under liquid crystal board light transmission state.
For achieving the above object, a kind of liquid crystal terminal equipment of the present invention, comprises a LCD assembly, and described LCD assembly is at least comprised of liquid crystal board and backlight module;
Described backlight module at least comprises reflector plate and/or backboard, and is placed in the one or more layers of blooming piece between reflector plate and/or backboard and described liquid crystal board;
On described reflector plate and/or backboard, be provided with a through hole, after this through hole, be provided with camera assembly or collector;
On every layer of blooming piece, at least the position at corresponding through hole is provided with transmittance section;
Described camera assembly or collector can see through the fingerprint that transmittance section on described through hole, blooming piece and described liquid crystal board gather liquid crystal board opposite side under liquid crystal board light transmission state.
For achieving the above object, a kind of liquid crystal terminal equipment of the present invention, comprises a LCD assembly,
Described LCD assembly is at least comprised of liquid crystal board and backlight module;
Described backlight module at least comprises reflector plate and/or backboard, and is placed in the one or more layers of blooming piece between reflector plate and/or backboard and described liquid crystal board;
On described reflector plate and/or backboard, to being provided with an imaging hole in transmittance section, after described backlight module, to being arranged at intervals with photoelectric conversion sensor by imaging hole, described photoelectric conversion sensor coordinates formation collector with described imaging hole;
On every layer of blooming piece, at least the position at corresponding imaging hole is provided with transmittance section;
Described collector can be through the fingerprint of the transmittance section on blooming piece and liquid crystal board collection liquid crystal board opposite side under liquid crystal board light transmission state.
For achieving the above object, a kind of liquid crystal terminal equipment of the present invention, comprises a LCD assembly,
Described LCD assembly is at least comprised of liquid crystal board and backlight module;
Described backlight module at least comprises reflector plate and/or backboard, and is placed in the one or more layers of blooming piece between reflector plate and/or backboard and described liquid crystal board;
On described reflector plate and/or backboard, be provided with a plurality of imaging holes, after described backlight module, corresponding each imaging hole is equipped with a photoelectric conversion sensor, and each photoelectric conversion sensor arranges with corresponding imaging hole interval, and described photoelectric conversion sensor coordinates formation collector with corresponding imaging hole;
On every layer of blooming piece, at least the position at corresponding imaging hole is provided with transmittance section;
Described collector can be through the fingerprint of the transmittance section on blooming piece and liquid crystal board collection liquid crystal board opposite side under liquid crystal board light transmission state.
For achieving the above object, a kind of liquid crystal terminal equipment of the present invention, comprises a LCD assembly,
Described LCD assembly is at least comprised of liquid crystal board and backlight module;
Described backlight module at least comprises reflector plate and/or backboard, and is placed in the one or more layers of blooming piece between reflector plate and/or backboard and described liquid crystal board;
On described reflector plate and/or backboard, be provided with a plurality of imaging holes, the zones of different of the corresponding same fingerprint of each imaging hole, two the corresponding finger-print region phase of imaging hole mutuals of arbitrary neighborhood are overlapping; After described backlight module, corresponding described a plurality of imaging holes are arranged at intervals with one or more photoelectric conversion sensors, and described photoelectric conversion sensor coordinates a collector of formation with described a plurality of imaging holes;
On every layer of blooming piece, at least the position at corresponding imaging hole is provided with transmittance section;
Described collector can be through the fingerprint of the transmittance section on blooming piece and liquid crystal board collection liquid crystal board opposite side under liquid crystal board light transmission state.
Preferably, also comprise a control device, described control device is controlled described photoelectric conversion sensor and is gathered one by one the corresponding fingerprint of each imaging hole, image.
Preferably, also comprise a control device, described control device is controlled the liquid crystal board that described liquid crystal board is opened the corresponding fingerprint of each imaging hole, image one by one.
Preferably, the aperture of described imaging hole is 0.001-1mm.
Preferably, between described imaging hole and described opto-electronic conversion sensing unit or between described imaging hole and described liquid crystal board, setting up optical filter.
Preferably, in any one or both sides of described imaging hole, set up correcting lens.
For achieving the above object, a kind of fingerprint of the present invention, image-pickup method, comprise the following steps:
Responding a control signal makes liquid crystal board in light transmission state;
In liquid crystal board one side, by a camera head or collector, the fingerprint of liquid crystal board opposite side is gathered.
Preferably, describedly at liquid crystal side, by a camera head or collector, the fingerprint of liquid crystal board opposite side or image collection are specially:
Foundation, for a plurality of scanning areas of same fingerprint, makes between adjacent scanning area overlapped;
The finger print imaging corresponding to each scanning area one by one;
Each fingerprint, image that scanning is obtained splice, and obtain complete finger print, image.
Preferably,
Foundation, for a plurality of scanning areas of same fingerprint, makes between adjacent scanning area overlapped;
Responding a control signal makes the liquid crystal board of corresponding each scanning area one by one in light transmission state;
The corresponding fingerprint of each scanning area, the image that obtain one by one,
Each fingerprint, the image that obtain are spliced to obtain complete finger print, image.
Preferably,
Foundation, for a plurality of scanning areas of same fingerprint, makes between adjacent scanning area overlapped;
Responding a control signal makes the liquid crystal board with regard to fingerprint in light transmission state;
The corresponding fingerprint of each scanning area, the image that obtain one by one,
Each fingerprint, the image that obtain are spliced to obtain complete finger print, image.
For achieving the above object, a kind of collector of the present invention, described collector is above-mentioned collector, and this collector comprises the panel with one or more imaging holes, and the location interval of corresponding imaging hole is provided with photoelectric conversion sensor.
Preferably, described collector comprises a box body, and described imaging hole is arranged on the front panel of box body, and described photoelectric conversion sensor is arranged on box body bottom that should imaging hole.
Beneficial effect of the present invention is:
1, the present invention utilizes pinhole imaging system principle to carry out imaging collection to fingerprint, compares with traditional total-reflection type optical fingerprint acquisition instrument, and its thickness can greatly reduce, thereby be conveniently integrated into, thickness is had in the harsh mobile terminal device requiring.In fingerprint imaging gatherer process, can be to the disposable collection of the effective collecting part of whole fingerprint, also multi collect one by one, and then convenient fingerprint, image are gathered clearly.
2, this method can be carried out architecture advances according to pinhole imaging system principle in LCDs, and LCDs can be gathered fingerprint, supports the operations such as Xie Ping.To the profile of the electronic equipments such as mobile phone and software interface design, provide great convenience, met the exquisite requirement of electronic equipment on aspect thickness and size simultaneously.In addition, the method also can be in the required fingerprint identification device in any field.
3, the present invention can be used on any type of liquid crystal display terminal, so that a kind of new fingerprint collecting and recognition function to be provided.Here, liquid crystal display terminal comprises the products such as panel computer, notebook, mobile phone, advertisement liquid crystal board, MP3 player.
4, the present invention utilizes pinhole imaging system principle to gather image, has replaced complicated optical lens, makes the thickness of image collecting device less, and volume is also less.
5, the present invention utilizes pinhole imaging system principle to carry out image acquisition, can be by the thickness reduction of image collecting device to several millimeters of demands that once met image collecting device ultrathin.
Accompanying drawing explanation
Fig. 1 is the structural representation of collector described in the embodiment of the present invention 1;
Fig. 2 is the structural representation of collector described in the embodiment of the present invention 2;
Fig. 3 is the structural representation of collector described in the embodiment of the present invention 3;
Fig. 4 is the application schematic diagram of collector described in the embodiment of the present invention 4;
Fig. 5 is the application schematic diagram of collector described in the embodiment of the present invention 5;
Fig. 6 is the structural representation of liquid crystal terminal equipment described in the embodiment of the present invention 6;
Fig. 7 is the structural representation of liquid crystal terminal equipment described in the embodiment of the present invention 7;
Fig. 8 is the structural representation of liquid crystal terminal equipment described in the embodiment of the present invention 8;
Fig. 9 is the structural representation of liquid crystal terminal equipment described in the embodiment of the present invention 9;
Figure 10 is the structural representation of liquid crystal terminal equipment described in the embodiment of the present invention 10;
Figure 11 is the structural representation of liquid crystal terminal equipment described in the embodiment of the present invention 11;
Figure 12 is the structural representation of liquid crystal terminal equipment described in the embodiment of the present invention 12;
Figure 13 is the structural representation of liquid crystal terminal equipment described in the embodiment of the present invention 13;
Figure 14 is the structural representation of liquid crystal terminal equipment described in the embodiment of the present invention 14.
When Figure 15 is porous imaging, the fingerprint image schematic diagram gathering by different apertures;
Figure 16 is the complete finger print image after Image Mosaics shown in Figure 15.
Figure 17 is the structural representation of image collecting device described in the embodiment of the present invention 18;
The structural representation of image collecting device described in Figure 18 embodiment of the present invention 19;
Figure 19 is the structural representation of image collecting device described in the embodiment of the present invention 20.
Embodiment
Below in conjunction with Figure of description, the present invention will be further described.
Below in conjunction with embodiment, collector of the present invention is set forth to explanation:
Embodiment 1:
As shown in Figure 1, described collector comprises the panel 1 with at least one imaging hole 2, and the location interval of corresponding imaging hole is provided with photoelectric conversion sensor 3.As shown in the figure, utilize pinhole imaging system principle, fingerprint can be by imaging hole imaging on photoelectric conversion sensor, thereby completes the collection of the fingerprint of corresponding imaging hole.Wherein, described photoelectric conversion sensor can adopt the photo-sensitive cells such as CMOS or CCD, for gathering fingerprint.Fig. 1 has shown the ultimate principle of institute of the present invention foundation.
Embodiment 2:
The present embodiment is on embodiment 1 basis: increased by a transparent panel.
As shown in Figure 2, for some specific equipment, can be by a transparent panel 4 in order to offer touching plane of finger, the resolution of being convenient to fix is carried out fingerprint collecting.
Embodiment 3:
As shown in Figure 3, collector comprises a box body 13, and described imaging hole is arranged on the front panel 14 of box body, and described photoelectric conversion sensor 3 is arranged on box body bottom that should imaging hole 2.
Above-mentioned collector can be applicable to various terminal devices.In application, described collector can be used as standalone module fingerprint is gathered.In the various embodiments described above, the aperture of described imaging hole can be 0.001-1mm; Consider the factors such as best imaging effect and shorter image-forming range and processing, the aperture of described imaging hole should be chosen between 0.01-0.2mm, as better in 0.1mm.
Embodiment 4:
As shown in Figure 4, described in the present embodiment equipment by collector 5 for terminal device 6 marginal positions, as mobile phone, can be on HOME key.The features such as that the more common camera assembly of this collector has is simple in structure, thinner thickness.
Embodiment 5:
As shown in Figure 5, the present embodiment place different from embodiment 3 is: described collector 5 is individual devices, is connected to each other by wire and interface with terminal device 6.
Liquid crystal terminal equipment of the present invention be by above-mentioned collector or camera assembly under liquid crystal board light transmission state, see through liquid crystal board and remove to gather fingerprint, image.Described liquid crystal board is the panel body that the liquid crystal molecule between upper and lower two face glasss and two panels forms.Liquid crystal board is transparent under particular state, can be regarded as a transparent panel.While gathering fingerprint, finger stamp is on the surface of LCD Panel, and collector or camera assembly are placed on the other one side (back side) of LCD Panel.
Below in conjunction with embodiment, liquid crystal terminal equipment of the present invention is set forth to explanation:
Liquid crystal terminal equipment described in the present invention comprises that panel computer, notebook, mobile phone, advertisement liquid crystal board, MP3 player, liquid crystal display, LCD TV and other have the terminal device of liquid crystal board.
Embodiment 6:
A kind of liquid crystal terminal equipment described in the present embodiment, comprise a LCD assembly, as shown in Figure 6, described LCD assembly at least comprises liquid crystal board 9, in liquid crystal terminal equipment, the position of corresponding liquid crystal board is arranged with camera assembly or collector 5 in parallel, and described camera assembly or collector see through the fingerprint that liquid crystal board gathers liquid crystal board opposite side under liquid crystal board light transmission state.
Embodiment 7:
Described in the present embodiment, a kind of liquid crystal terminal equipment, comprises a LCD assembly, and described LCD assembly is at least comprised of liquid crystal board and backlight module, and wherein, in described backboard module, the position of corresponding liquid crystal board is provided with camera assembly or collector.Conventionally, described backlight module comprises the one or more layers of blooming piece between backboard, reflector plate and reflector plate and liquid crystal board.Therefore, on each blooming piece, at least in the position of corresponding camera assembly or collector, be provided with transmittance section.The setting of this transmittance section is in order to prevent that blooming piece is difficult for printing opacity or fingerprint collecting process is impacted when light tight.When any blooming piece is the full impregnated light time, this blooming piece is transmittance section.When any blooming piece is difficult for printing opacity or when light tight, the transmittance section on this blooming piece can be a light hole or light transmission piece.
Camera assembly described in the present embodiment or collector can be all the individual devices that can gather fingerprint.For example, described camera assembly can be the various camera assemblies on existing mobile phone, panel computer.Described collector can be the arbitrary described collector of above-described embodiment 1-5.As shown in Figure 7, common described backlight module at least comprises reflector plate 8 and backboard 7 (omitting blooming piece in figure), and therefore, as shown in the figure, described camera assembly or collector are placed on a certain position, top of reflector plate 4.
Embodiment 8:
The difference of the present embodiment and embodiment 7 is: as shown in Figure 8, described backlight module at least comprises reflector plate 8 and backboard 7, and is placed in the one or more layers of blooming piece between reflector plate and liquid crystal board, and described reflector plate and backboard are close to mutually.On described reflector plate, be provided with a through hole 10, on described backboard and the position of corresponding through hole be provided with a recess, in recess, fix camera assembly or collector 5.Described camera assembly or collector see through the fingerprint that transmittance section on through hole, blooming piece and liquid crystal board gather liquid crystal board opposite side under liquid crystal board light transmission state.
Embodiment 9:
The difference of the present embodiment and embodiment 8 is: as shown in Figure 9, described backlight module at least comprises reflector plate 8, backboard 7 and polaroid 16 (other blooming pieces do not draw), on described polaroid, is provided with transmittance section.On described reflector plate and backboard, be provided with a through hole 10.After camera assembly or collector 5 are arranged on to backboard and corresponding through hole.The size of described through hole is than the camera lens of camera assembly, and the imaging hole of collector size wants large.Described camera assembly or collector see through the fingerprint that transmittance section on through hole, blooming piece and liquid crystal board gather liquid crystal board opposite side under liquid crystal board light transmission state.
Embodiment 10:
Liquid crystal terminal equipment described in the present embodiment; comprise a LCD assembly; as shown in figure 10, this LCD assembly is disposed with glassivation 12, touch-screen 11, liquid crystal board 9, one deck and blooming piece more than one deck 15, reflector plate 8 and photoelectric conversion sensor 3 and backboard 7 at least from top to bottom.On each blooming piece, be provided with transmittance section.This structure can be made existing most of terminal device, as touched mobile phone, panel computer etc.
In the present embodiment, photoelectric conversion sensor 3 is arranged between reflector plate and backboard, has an imaging hole 2 on described reflector plate, imaging hole and the corresponding setting in transmittance section on blooming piece.Actually add man-hour, a recess can be set on backboard, make photoelectric conversion sensor be positioned at this recess.Described photoelectric conversion sensor sees through the fingerprint that transmittance section on imaging hole, blooming piece and liquid crystal board gather liquid crystal board opposite side under liquid crystal board light transmission state.
Embodiment 11:
A kind of liquid crystal terminal equipment described in the present embodiment; comprise a LCD assembly; as shown in figure 11, this LCD assembly is disposed with glassivation 12, touch-screen 11, liquid crystal board 9, one deck and blooming piece more than one deck 15, reflector plate 8, backboard 7 and photoelectric conversion sensor 3 at least from top to bottom.On each blooming piece, be provided with transmittance section.Conventionally, reflector plate 8 fits together with backboard 7.Therefore, need to together offer imaging hole 2 to reflector plate and backboard, imaging hole and the corresponding setting in transmittance section on blooming piece.So design, shown in photoelectric conversion sensor 3 be just arranged on the below of backboard 7, setting corresponding to imaging hole.Described photoelectric conversion sensor sees through the fingerprint that transmittance section on imaging hole, blooming piece and liquid crystal board gather liquid crystal board opposite side under liquid crystal board light transmission state.
A common deficiency of pinhole imaging system is, facing to the central area of aperture, conventionally has higher brightness and sharpness, and poor away from brightness and the sharpness of the surrounding area of aperture.Therefore, the present invention makes up this defect by the method for porous imaging, improves image quality.Concrete grammar is shown in following embodiment.
Embodiment 12:
A kind of liquid crystal terminal equipment described in the present embodiment; comprise a LCD assembly; as shown in figure 12, this LCD assembly is disposed with glassivation 13, touch-screen 12, liquid crystal board 9, reflector plate 8, backboard 7 and photoelectric conversion sensor 3 at least from top to bottom.On described reflector plate and backboard, have a plurality of imaging holes 2, corresponding each imaging hole is provided with photoelectric conversion sensor.As shown in the figure, each imaging hole and photoelectric conversion sensor all form a collector.
During execution, the control device in equipment is controlled photoelectric conversion sensor and is gathered one by one the corresponding fingerprint of each imaging hole, image, and is spliced to form complete fingerprint, image.
Embodiment 13:
A kind of liquid crystal terminal equipment described in the present embodiment; comprise a LCD assembly; as shown in figure 13, this LCD assembly is disposed with glassivation 13, touch-screen 12, liquid crystal board 9, reflector plate 8, backboard 7 and photoelectric conversion sensor 3 at least from top to bottom.On described reflector plate and backboard, have a plurality of imaging holes 2, the corresponding a plurality of imaging holes in backboard below are provided with a photoelectric conversion sensor.
During execution, the control module in equipment is controlled the open and close of the liquid crystal region A on liquid crystal board 9, to realize the open and close of each imaging hole, has influence on the fingerprint collecting work of each imaging hole.For example, as shown in the figure, when the t1 moment, open liquid crystal region A1, to realize the collecting work of the first imaging hole; Close other liquid crystal regions, to suspend the collecting work of other imaging holes.Photoelectric conversion sensor obtains fingerprint, image Y1; When the t2 moment, open liquid crystal region A2, to realize the collecting work of the second imaging hole; Close other liquid crystal regions, to suspend the collecting work of other imaging holes.Photoelectric conversion sensor obtains fingerprint, image Y2; The like, finally obtain fingerprint, image Y1, Y2, Y3 ... .Y9.Then all fingerprints, image cutting-out are obtained the zones of different of corresponding true fingerprint, image, be spliced into complete fingerprint, image.
Control the open and close of liquid crystal region, can be by show different contents to liquid crystal region, so that this region printing opacity or light tight realization.For example, this region is shown as white, is printing opacity or open mode; Be shown as black, be light tight or closed condition.
The explanatory implication of describing " being spliced into complete fingerprint, image " of Figure 15 and Figure 16.Take four fingerprints of four aperture collections, image is example, Figure 15 shows that four fingerprints, image A, B, C, the D that by four apertures, gather separately.These four fingerprints, image all only comprise the part effective coverage of whole fingerprint, image.These four images are carried out to cutting, by the effective coverage cutting out mutually splicing can obtain complete finger print, image as shown in figure 16.
Embodiment 14
A kind of liquid crystal terminal equipment described in the present embodiment; comprise a LCD assembly; as shown in figure 14, this LCD assembly is disposed with glassivation 13, touch-screen 12, liquid crystal board 9, reflector plate 8, backboard 7 and photoelectric conversion sensor 3 at least from top to bottom.On described reflector plate and backboard, have a plurality of imaging holes 2, below backboard, corresponding each imaging hole is equipped with a photoelectric conversion sensor.
During execution, the control module in equipment is controlled the open and close of photoelectric conversion sensor, to realize the fingerprint collecting work that each imaging hole is corresponding.For example, as shown in the figure, when the t1 moment, open the first photoelectric conversion sensor, to realize the collecting work of the first imaging hole; Close other photoelectric conversion sensors, to suspend the collecting work of other imaging holes.Photoelectric conversion sensor obtains fingerprint, image Y1; When the t2 moment, open the second photoelectric conversion sensor, to realize the collecting work of the second imaging hole; Close other photoelectric conversion sensors, to suspend the collecting work of other imaging holes.Photoelectric conversion sensor obtains fingerprint, image Y2; The like, finally obtain fingerprint, image Y1, Y2, Y3 ... .Y9.Then all fingerprints, image cutting-out are obtained the zones of different of corresponding true fingerprint, image, be spliced into complete fingerprint, image.
Generally, utilize pinhole imaging system principle to gather fingerprint and can also by following many kinds of measures, improve the quality of pinhole imaging system, reach and better carry out fingerprint recognition:
1, can plated film or processes especially (as plating part reflective semitransparent film, atomization processing etc.) in the glassivation surface of liquid crystal board, and the object of these processing is the contrasts that strengthen fingerprint ridge and background, makes the imaging of fingerprint ridge comparatively clear.
2, pinhole imaging system has the irregular shortcoming of illumination, brighter in the middle of showing as, and periphery is darker.Can between imaging hole and described opto-electronic conversion sensing unit, set up optical filter, for the homogeneity of regulating illumination.
When 3, the size of imaging hole is larger, image will thicken; Hour, image is excessively dark for the size of imaging hole.Therefore, can set up at imaging hole place one group of very little lens, light be regulated, thereby still obtain imaging clearly when orifice size is larger.
Below in conjunction with embodiment, the fingerprint identification method for liquid crystal board of the present invention is further described.
Embodiment 15:
The fingerprint identification method for liquid crystal board of the present embodiment, comprises the following steps:
Responding a control signal makes liquid crystal board in light transmission state;
In liquid crystal board one side, by a camera head or collector, the fingerprint of liquid crystal board opposite side is gathered.
Wherein, described collector is above-mentioned collector.
Wherein, above-mentioned response one control signal, can be that the resulting control signal of touch display screen or the shake-up resulting control signal of button or the resulting control signal of response remote signal etc., do not enumerate at this.
The liquid crystal terminal equipment being made based on above-mentioned collector of take is example, first, liquid crystal board is powered up and makes liquid crystal board all or local transparent, then people's finger print face is affixed to liquid crystal board transmittance section, and camera head or collector gather fingerprint light signal.
Embodiment 16:
The present embodiment, by setting up a plurality of scanning areas for same fingerprint, makes between adjacent scanning area overlapped; The finger print imaging corresponding to each scanning area one by one; Each fingerprint, image that scanning is obtained splice.As shown in figure 12, the control module in equipment is controlled the open and close of the liquid crystal region A on liquid crystal board 9 to implementation, to realize the open and close of each imaging hole, has influence on the fingerprint collecting work of each imaging hole.For example, as shown in the figure, when the t1 moment, open liquid crystal region A1, to realize the collecting work of the first imaging hole; Close other liquid crystal regions, to suspend the collecting work of other imaging holes.Photoelectric conversion sensor obtains fingerprint, image Y1; When the t2 moment, open liquid crystal region A2, to realize the collecting work of the second imaging hole; Close other liquid crystal regions, to suspend the collecting work of other imaging holes.Photoelectric conversion sensor obtains fingerprint, image Y2; The like, finally obtain fingerprint, image Y1, Y2, Y3 ... .Y9.Then all fingerprints, image cutting-out are obtained the zones of different of corresponding true fingerprint, image, be spliced into complete fingerprint, image.
The explanatory implication of describing " being spliced into complete fingerprint, image " of Figure 15 and Figure 16.Take four fingerprints of four aperture collections, image is example, Figure 15 shows that four fingerprints, image A, B, C, the D that by four apertures, gather separately.These four fingerprints, image all only comprise the part effective coverage of whole fingerprint, image.These four images are carried out to cutting, by the effective coverage cutting out mutually splicing can obtain complete finger print, image as shown in figure 16.
Embodiment 17:
The present embodiment, by setting up a plurality of scanning areas for same fingerprint, makes between adjacent scanning area overlapped; The finger print imaging corresponding to each scanning area one by one; Each fingerprint, image that scanning is obtained splice.During execution, the control device in equipment controls cutting out of each photoelectric conversion sensor and folding, gathers one by one the corresponding fingerprint of each imaging hole, image, and is spliced to form complete fingerprint, image.
Illustrate: above-described embodiment 6 to 17 is all the embodiment to liquid crystal terminal equipment, introduced a kind of liquid crystal terminal that can gather fingerprint, the liquid crystal terminal of embodiment 6 to 17 also can be applied to the image acquisition to common target equally, the image of target comprises fingerprint image, and the image of other solids or plane target, to the image acquisition of common target and implement identical with to fingerprint collecting of principle, do not repeat them here.
It should be noted that in addition: fingerprint collecting method of the present invention, applicable to above-mentioned liquid crystal terminal equipment, does not gather fingerprint but above-mentioned liquid crystal terminal equipment does not limit to dependence fingerprint collecting method of the present invention.
Embodiment 18
As shown in figure 17, the image collecting device of the common target of the present embodiment, the panel 1 of at least one imaging hole 2, the location interval of corresponding imaging hole is provided with photoelectric conversion sensor 3.As shown in the figure, utilize pinhole imaging system principle, object can be by imaging hole imaging on photoelectric conversion sensor, thereby completes the collection of the common object image of corresponding imaging hole.Wherein, described photoelectric conversion sensor can adopt the photo-sensitive cells such as CMOS or CCD, for gathering fingerprint.Fig. 1 has shown the ultimate principle of institute of the present invention foundation.
Embodiment 19:
The present embodiment is on embodiment 18 bases: increased by a transparent panel.
As shown in figure 18, for some specific equipment, can play protective effect by the inside of 4 pairs of image collecting devices of a transparent panel.
Above-mentioned two embodiment utilize an imaging hole to gather target image, target image forms the collectable images of the photo-sensitive cells such as photo-sensitive cell such as CMOS or CCD by imaging hole, must there is light to be radiated on object, and object is all to utilize object to be placed in a kind of embodiment of the environment of certain brightness in above-mentioned two embodiment.On the basis of above-described embodiment 18 and embodiment 19, can expand embodiment, above or below transparent panel, light source emitter is set, this light source emitter is to object emission of light, after being irradiated, object exhales the scattered light of different directions, wherein a part of scattered light projects imaging on sensor devices through transparent panel, and the light of this light source emitter output does not affect the light path of imaging hole imaging.
Embodiment 20:
The present embodiment is on embodiment 19 bases: improve further a plurality of imaging holes are set on an imaging plate, can reach and expand the object of visual field or realize multi-view stereo vision.Interval between adjacent imaging hole meets following formula in the present embodiment:
Wherein, D is hole diameter, L
ifor the distance of aperture plate center to sensor devices upper surface, L
hthickness for aperture plate.For so arranging, can make the independent imaging of each imaging hole, not interfere with each other.
Image collecting device described in the various embodiments described above, also comprises wired or/and wireless communication device and power supply and controller.Light source module provides needed illumination, can be placed on protection panel above or below, requirement can not affect the light path of pinhole imaging system; Wire/wireless communicator provides and outside communication function, transmits data and control command; The power supply that power supply provides, can external power supply or use battery; Controller is responsible for controlling the duty of ultra-thin imageing sensor.
The ultra-thin image collecting device of the present invention simple in structure, so cost is also cheap, can lay in a large number.A plurality of sensors can be coupled together by wire/wireless communicator, form vision monitoring network, for image acquisition and monitoring on a large scale.As forest is cut down steathily, fire protection etc. just has this demand.
In sum, the thickness of this image collecting device can be accomplished very thin, has volume little with respect to conventional image sensor, outstanding advantage with low cost.
Can be widely applied to the every field such as vision monitoring in industrial production line, the supervision detection in complex apparatus, three-dimensional measurement.A plurality of sensors can also be formed to wired or wireless network by mixed-media network modules mixed-media, be arranged in the more difficult place of manpower monitoring rate, as forest protection, mine are inner, inner, the large-scale remote equipment of underground utilities (as lunar rover, spaceship) is inner etc., is used for Real-Time Monitoring emergency situations, disaster generation etc.
Above; be only preferred embodiment of the present invention, but protection scope of the present invention is not limited to this, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claim was defined.
Claims (24)
1. an image collecting device, it is characterized in that: at least comprise protection panel, spacing is arranged on the imaging plate of described protection panel below, imaging plate is provided with an imaging hole, after described imaging plate, to being arranged at intervals with photoelectric conversion sensor by imaging hole, described photoelectric conversion sensor coordinates formation collector with described imaging hole;
Under irradiating state at the image of protection panel opposite side in light, described collector sees through the image of described protection panel collection protection panel opposite side.
2. an image collecting device, it is characterized in that: at least comprise protection panel, spacing is arranged on the imaging plate of described protection panel below, described imaging plate is provided with at least two imaging holes, the zones of different of the corresponding same image of each imaging hole, two the corresponding finger-print region phase of imaging hole mutuals of arbitrary neighborhood are overlapping; After described imaging plate, corresponding described a plurality of imaging holes are arranged at intervals with one or more photoelectric conversion sensors, and described photoelectric conversion sensor coordinates a collector of formation with described a plurality of imaging holes;
Under irradiating state at the image of protection panel opposite side in light, described collector sees through the image of described protection panel collection protection panel opposite side.
3. image collecting device according to claim 2, is characterized in that: the interval between adjacent imaging hole meets following formula:
Wherein, D is hole diameter, L
ifor the distance of aperture plate center to sensor devices upper surface, L
hthickness for aperture plate.
4. image collecting device according to claim 2, is characterized in that: described collector also comprises and also comprise a control device, and described control device is controlled described photoelectric conversion sensor and gathered one by one the corresponding image of each imaging hole.
5. image collecting device according to claim 1 and 2, is characterized in that: also comprise light source emitter, wherein said light source emitter is arranged on above or below described protection panel.
6. image collecting device according to claim 1 and 2, is characterized in that: also comprise wired or/and wireless communication device.
7. image collecting device according to claim 1 and 2, is characterized in that: also comprise power supply and controller.
8. a liquid crystal terminal equipment, comprise a LCD assembly, it is characterized in that, described LCD assembly at least comprises liquid crystal board, in liquid crystal terminal equipment, the position of corresponding liquid crystal board is provided with camera assembly or collector, and described camera assembly or collector see through fingerprint or the image that liquid crystal board gathers liquid crystal board opposite side under liquid crystal board light transmission state.
9. a liquid crystal terminal equipment, comprise a LCD assembly, it is characterized in that, described LCD assembly is at least comprised of liquid crystal board and backlight module, wherein, in described backlight module, the position of corresponding liquid crystal board is provided with camera assembly or collector, and described camera assembly or collector see through fingerprint or the image that liquid crystal board gathers liquid crystal board opposite side under liquid crystal board light transmission state.
10. a liquid crystal terminal equipment, comprises a LCD assembly, it is characterized in that,
Described LCD assembly is at least comprised of liquid crystal board and backlight module;
Described backlight module at least comprises reflector plate and/or backboard, and is placed in the one or more layers of blooming piece between reflector plate and/or backboard and described liquid crystal board;
On described reflector plate and/or backboard, be provided with a through hole, after this through hole, be provided with camera assembly or collector;
On every layer of blooming piece, at least the position at corresponding through hole is provided with transmittance section;
Described camera assembly or collector can see through fingerprint or the image that transmittance section on described through hole, blooming piece and described liquid crystal board gather liquid crystal board opposite side under liquid crystal board light transmission state.
11. 1 kinds of liquid crystal terminal equipment, comprise a LCD assembly, it is characterized in that,
Described LCD assembly is at least comprised of liquid crystal board and backlight module;
Described backlight module at least comprises reflector plate and/or backboard, and is placed in the one or more layers of blooming piece between reflector plate and/or backboard and described liquid crystal board;
On described reflector plate and/or backboard, to being provided with an imaging hole in transmittance section, after described backlight module, to being arranged at intervals with photoelectric conversion sensor by imaging hole, described photoelectric conversion sensor coordinates formation collector with described imaging hole;
On every layer of blooming piece, at least the position at corresponding imaging hole is provided with transmittance section;
Described collector can be through fingerprint or the image of the transmittance section on blooming piece and liquid crystal board collection liquid crystal board opposite side under liquid crystal board light transmission state.
12. 1 kinds of liquid crystal terminal equipment, comprise a LCD assembly, it is characterized in that,
Described LCD assembly is at least comprised of liquid crystal board and backlight module;
Described backlight module at least comprises reflector plate and/or backboard, and is placed in the one or more layers of blooming piece between reflector plate and/or backboard and described liquid crystal board;
On described reflector plate and/or backboard, be provided with a plurality of imaging holes, after described backlight module, corresponding each imaging hole is equipped with a photoelectric conversion sensor, and each photoelectric conversion sensor arranges with corresponding imaging hole interval, and described photoelectric conversion sensor coordinates formation collector with corresponding imaging hole;
On every layer of blooming piece, at least the position at corresponding imaging hole is provided with transmittance section;
Described collector can be through fingerprint or the image of the transmittance section on blooming piece and liquid crystal board collection liquid crystal board opposite side under liquid crystal board light transmission state.
13. 1 kinds of liquid crystal terminal equipment, comprise a LCD assembly, it is characterized in that,
Described LCD assembly is at least comprised of liquid crystal board and backlight module;
Described backlight module at least comprises reflector plate and/or backboard, and is placed in the one or more layers of blooming piece between reflector plate and/or backboard and described liquid crystal board;
On described reflector plate and/or backboard, be provided with a plurality of imaging holes, the zones of different of the corresponding same fingerprint of each imaging hole, two the corresponding finger-print region phase of imaging hole mutuals of arbitrary neighborhood are overlapping; After described backlight module, corresponding described a plurality of imaging holes are arranged at intervals with one or more photoelectric conversion sensors, and described photoelectric conversion sensor coordinates a collector of formation with described a plurality of imaging holes;
On every layer of blooming piece, at least the position at corresponding imaging hole is provided with transmittance section;
Described collector can be through fingerprint or the image of the transmittance section on blooming piece and liquid crystal board collection liquid crystal board opposite side under liquid crystal board light transmission state.
14. liquid crystal terminal equipment according to claim 13, is characterized in that, also comprise a control device, and described control device is controlled described photoelectric conversion sensor and gathered one by one the corresponding fingerprint of each imaging hole or image.
15. liquid crystal terminal equipment according to claim 13, is characterized in that, also comprise a control device, and described control device is controlled the liquid crystal board that described liquid crystal board is opened the corresponding fingerprint of each imaging hole, image one by one.
16. according to claim 11 to 15 arbitrary described liquid crystal terminal equipment, it is characterized in that, the aperture of described imaging hole is 0.001-1mm.
17. according to claim 11 to 15 arbitrary described liquid crystal terminal equipment, it is characterized in that, between described imaging hole and described opto-electronic conversion sensing unit or between described imaging hole and described liquid crystal board, are setting up optical filter.
18. according to claim 11 to 15 arbitrary described liquid crystal terminal equipment, it is characterized in that, in any one or both sides of described imaging hole, set up correcting lens.
19. 1 kinds of fingerprints, image-pickup method, is characterized in that, comprises the following steps:
Responding a control signal makes liquid crystal board in light transmission state;
In liquid crystal board one side, by a camera head or collector, the fingerprint of liquid crystal board opposite side is gathered.
20. fingerprints according to claim 12, image-pickup method, is characterized in that, describedly at liquid crystal side, by a camera head or collector, the fingerprint of liquid crystal board opposite side or image collection is specially:
Foundation, for a plurality of scanning areas of same fingerprint, makes between adjacent scanning area overlapped;
The finger print imaging corresponding to each scanning area one by one;
Each fingerprint, image that scanning is obtained splice, and obtain complete finger print, image.
21. fingerprints according to claim 12, image-pickup method, is characterized in that,
Foundation, for a plurality of scanning areas of same fingerprint, makes between adjacent scanning area overlapped;
Responding a control signal makes the liquid crystal board of corresponding each scanning area one by one in light transmission state;
The corresponding fingerprint of each scanning area, the image that obtain one by one,
Each fingerprint, the image that obtain are spliced to obtain complete finger print, image.
22. fingerprints according to claim 12, image-pickup method, is characterized in that,
Foundation, for a plurality of scanning areas of same fingerprint, makes between adjacent scanning area overlapped;
Responding a control signal makes the liquid crystal board with regard to fingerprint in light transmission state;
The corresponding fingerprint of each scanning area, the image that obtain one by one,
Each fingerprint, the image that obtain are spliced to obtain complete finger print, image.
23. 1 kinds of collectors, it is characterized in that, described collector is the collector described in the arbitrary claim of the claims 8-23, and this collector comprises the panel with one or more imaging holes, and the location interval of corresponding imaging hole is provided with photoelectric conversion sensor.
24. collectors according to claim 23, is characterized in that, described collector comprises a box body, and described imaging hole is arranged on the front panel of box body, and described photoelectric conversion sensor is arranged on box body bottom that should imaging hole.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410281377.9A CN104063704B (en) | 2014-04-04 | 2014-06-20 | Image acquisition device, liquid crystal terminal equipment, fingerprint and image acquisition method |
| PCT/CN2014/094342 WO2015149545A1 (en) | 2014-04-04 | 2014-12-19 | Image collection apparatus, terminal device, liquid crystal terminal device and image collection method |
| US15/328,874 US10360430B2 (en) | 2014-04-04 | 2014-12-19 | Image acquisition apparatus, terminal device, liquid crystal terminal device and image acquisition method |
| EP14888165.9A EP3147824A4 (en) | 2014-04-04 | 2014-12-19 | Image collection apparatus, terminal device, liquid crystal terminal device and image collection method |
| TW104107727A TWI536274B (en) | 2014-04-04 | 2015-03-11 | Image acquisition device, terminal equipment, liquid crystal terminal equipment and image acquisition method |
| US16/384,773 US20190236329A1 (en) | 2014-04-04 | 2019-04-15 | Image Acquisition Apparatus, Terminal Device, Liquid Crystal Terminal Device and Image Acquisition Method |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410136810.X | 2014-04-04 | ||
| CN201410136810X | 2014-04-04 | ||
| CN201410136810.XA CN103942537A (en) | 2014-04-04 | 2014-04-04 | Liquid crystal terminal device, fingerprint image collection method and fingerprint collector |
| CN201410281377.9A CN104063704B (en) | 2014-04-04 | 2014-06-20 | Image acquisition device, liquid crystal terminal equipment, fingerprint and image acquisition method |
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| Publication Number | Publication Date |
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| CN104063704A true CN104063704A (en) | 2014-09-24 |
| CN104063704B CN104063704B (en) | 2020-11-10 |
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| CN201410136810.XA Pending CN103942537A (en) | 2014-04-04 | 2014-04-04 | Liquid crystal terminal device, fingerprint image collection method and fingerprint collector |
| CN201410281377.9A Active CN104063704B (en) | 2014-04-04 | 2014-06-20 | Image acquisition device, liquid crystal terminal equipment, fingerprint and image acquisition method |
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