CN103942537A - Liquid crystal terminal device, fingerprint image collection method and fingerprint collector - Google Patents
Liquid crystal terminal device, fingerprint image collection method and fingerprint collector Download PDFInfo
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- CN103942537A CN103942537A CN201410136810.XA CN201410136810A CN103942537A CN 103942537 A CN103942537 A CN 103942537A CN 201410136810 A CN201410136810 A CN 201410136810A CN 103942537 A CN103942537 A CN 103942537A
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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
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Abstract
The invention discloses a fingerprint collector, a liquid crystal terminal device and a fingerprint image collection method. On the basis of the principle of pin-hole imaging, an ultra-thin fingerprint collector of any size can be formed and further combined with a liquid crystal display screen to achieve the function of fingerprint collection. The liquid crystal terminal device comprises a liquid crystal display assembly which at least comprises a liquid crystal plate and a backlight module. The backlight module at least comprises a reflective piece and a back plate, one or more imaging holes are formed in the reflective piece and/or the back plate, and photovoltaic conversion sensors are arranged on the positions corresponding to the imaging holes. Structural improvement is carried out on the liquid crystal display screen according to the principle of pin-hole imaging so that the liquid crystal display screen can be used for fingerprint collection and can support the terminal device to finish screen unlocking, account number verification and other operations needing personal identify identification through fingerprint recognition.
Description
Technical field
The present invention relates to a kind of fingerprint capturer, liquid crystal terminal equipment and the fingerprint image acquisition method for 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.
Summary of the invention
For the problems referred to above, the object of the present invention is to provide a kind of fingerprint capturer, liquid crystal terminal equipment and the fingerprint collecting method for liquid crystal board, thereby size and the thickness of finger print acquisition module in reduction equipment greatly, provides great convenience to equipment profile and software interface design.
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 fingerprint capturer, and described camera assembly or fingerprint capturer see through the fingerprint of 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, comprise a LCD assembly, described LCD assembly is at least made up 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 fingerprint capturer, and described camera assembly or fingerprint capturer see through the fingerprint of 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, and described LCD assembly is at least made up 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 fingerprint capturer;
On every layer of blooming piece, at least the position at corresponding through hole is provided with transmittance section;
Described camera assembly or fingerprint capturer can see through transmittance section on described through hole, blooming piece and described liquid crystal board and gather the fingerprint of 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 made up 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 fingerprint capturer with described imaging hole;
On every layer of blooming piece, at least the position at corresponding imaging hole is provided with transmittance section;
Described fingerprint capturer 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 made up 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 multiple 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 fingerprint capturer with corresponding imaging hole;
On every layer of blooming piece, at least the position at corresponding imaging hole is provided with transmittance section;
Described fingerprint capturer 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 made up 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 multiple 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 multiple imaging holes are arranged at intervals with one or more photoelectric conversion sensors, and described photoelectric conversion sensor coordinates a fingerprint capturer of formation with described multiple imaging holes;
On every layer of blooming piece, at least the position at corresponding imaging hole is provided with transmittance section;
Described fingerprint capturer 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, photoelectric conversion sensor gathers the corresponding fingerprint image of each imaging hole one by one described in described control device control.
Preferably, also comprise a control device, liquid crystal board is opened the liquid crystal board of the corresponding fingerprint image of each imaging hole one by one described in described control device control.
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, set up correcting lens in any one or both sides of described imaging hole.
For achieving the above object, a kind of fingerprint image acquisition method of the present invention, comprises the following steps:
Responding a control signal makes liquid crystal board in light transmission state;
The fingerprint of liquid crystal board opposite side is gathered by a camera head or fingerprint capturer in liquid crystal board one side.
It is preferably, described that at liquid crystal side, by a camera head or fingerprint capturer, fingerprint or the image collection to liquid crystal board opposite side is specially:
Set up the multiple scanning areas for same fingerprint, make between adjacent scanning area overlapped;
The finger print imaging corresponding to each scanning area one by one;
Each fingerprint image that scanning is obtained splices, and obtains complete finger print image.
Preferably,
Set up the multiple scanning areas for same fingerprint, make 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 image of each scanning area obtaining one by one,
The each fingerprint image obtaining is spliced to obtain complete finger print image.
Preferably,
Set up the multiple scanning areas for same fingerprint, make 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 image of each scanning area obtaining one by one,
The each fingerprint image obtaining is spliced to obtain complete finger print image.
For achieving the above object, a kind of fingerprint capturer of the present invention, described fingerprint capturer is above-mentioned fingerprint capturer, and this fingerprint capturer 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, and compared with traditional total-reflection type optical fingerprint acquisition instrument, 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 is 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.Provide great convenience to the profile of the electronic equipments such as mobile phone and software interface design, 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.
Brief description of the drawings
Fig. 1 is the structural representation of fingerprint capturer described in the embodiment of the present invention 1;
Fig. 2 is the structural representation of fingerprint capturer described in the embodiment of the present invention 2;
Fig. 3 is the structural representation of fingerprint capturer described in the embodiment of the present invention 3;
Fig. 4 is the application schematic diagram of fingerprint capturer described in the embodiment of the present invention 4;
Fig. 5 is the application schematic diagram of fingerprint capturer 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.
Embodiment
Below in conjunction with Figure of description, the present invention will be further described.
Below in conjunction with embodiment, fingerprint capturer of the present invention is set forth to explanation:
Embodiment 1:
As shown in Figure 1, described fingerprint capturer 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 cell 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, fingerprint capturer 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 fingerprint capturer can be applicable to various terminal devices.In application, described fingerprint capturer 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 best imaging effect and the shorter factor such as 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 fingerprint capturer 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 fingerprint capturer has is simple in structure, thinner thickness.
Embodiment 5:
As shown in Figure 5, the present embodiment place different from embodiment 3 is: described fingerprint capturer 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 fingerprint capturer 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 fingerprint capturer 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 fingerprint capturer 5 in parallel, and described camera assembly or fingerprint capturer see through the fingerprint of liquid crystal board collection liquid crystal board opposite side under liquid crystal board light transmission state.
Embodiment 7:
A kind of liquid crystal terminal equipment described in the present embodiment, comprise a LCD assembly, described LCD assembly is at least made up 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 fingerprint capturer.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, be at least provided with transmittance section in the position of corresponding camera assembly or fingerprint capturer.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 an arbitrary blooming piece is the full impregnated light time, this blooming piece is transmittance section.When an arbitrary 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 fingerprint capturer 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 fingerprint capturer can be the arbitrary described fingerprint capturer of above-described embodiment 1-5.As shown in Figure 7, common described backlight module at least comprise in reflector plate 8 and backboard 7(figure omit blooming piece), therefore, as shown in the figure, described camera assembly or fingerprint capturer 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 fingerprint capturer 5.Described camera assembly or fingerprint capturer see through transmittance section on through hole, blooming piece and liquid crystal board and gather the fingerprint of 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 that reflector plate 8, backboard 7 and other blooming pieces of polaroid 16(do not draw), on described polaroid, be provided with transmittance section.On described reflector plate and backboard, be provided with a through hole 10.After camera assembly or fingerprint capturer 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 fingerprint capturer size wants large.Described camera assembly or fingerprint capturer see through transmittance section on through hole, blooming piece and liquid crystal board and gather the fingerprint of 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 transmittance section on imaging hole, blooming piece and liquid crystal board and gathers the fingerprint of 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 transmittance section on imaging hole, blooming piece and liquid crystal board and gathers the fingerprint of liquid crystal board opposite side under liquid crystal board light transmission state.
A common deficiency of pinhole imaging system is, conventionally has higher brightness and sharpness facing to the central area of aperture, 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 multiple 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 fingerprint capturer.
When execution, the control device control photoelectric conversion sensor in equipment gathers the corresponding fingerprint image of each imaging hole one by one, 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 multiple imaging holes 2, the corresponding multiple imaging holes in backboard below are provided with a photoelectric conversion sensor.
When execution, the open and close of the liquid crystal region A on the control module control liquid crystal board 9 in equipment, to realize the open and close of each imaging hole, have 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 fingerprint images are cut out to the zones of different that obtains corresponding actual 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.Taking four fingerprint images of four aperture collections as example, Figure 15 shows that four fingerprint image A, the B, C, the D that gather separately by four apertures.These four fingerprint images 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 multiple imaging holes 2, below backboard, corresponding each imaging hole is equipped with a photoelectric conversion sensor.
When execution, the open and close of the control module control photoelectric conversion sensor in equipment, 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 fingerprint images are cut out to the zones of different that obtains corresponding actual fingerprint image, be spliced into complete fingerprint image.
Under normal circumstances, utilize pinhole imaging system principle collection fingerprint can also improve by following many kinds of measures 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.
3,, when 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 in the time that 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;
The fingerprint of liquid crystal board opposite side is gathered by a camera head or fingerprint capturer in liquid crystal board one side.
Wherein, described fingerprint capturer is above-mentioned fingerprint capturer.
Wherein, above-mentioned response one control signal, Ke Yishi, the control signals that the control signal that the control signal that touch display screen obtains or shake-up button obtain or response remote signal obtain etc., do not enumerate at this.
Taking the liquid crystal terminal equipment that is made based on above-mentioned fingerprint capturer as 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, camera head or fingerprint capturer gather fingerprint light signal.
Embodiment 16:
The present embodiment, by setting up the multiple 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 splices.As shown in figure 12, the open and close of the liquid crystal region A on the control module control liquid crystal board 9 in equipment, to realize the open and close of each imaging hole, have influence on the fingerprint collecting work of each imaging hole to implementation.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 fingerprint images are cut out to the zones of different that obtains corresponding actual 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.Taking four fingerprint images of four aperture collections as example, Figure 15 shows that four fingerprint image A, the B, C, the D that gather separately by four apertures.These four fingerprint images 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 the multiple 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 splices.When execution, closing and folding of the each photoelectric conversion sensor of control device control in equipment, gathers the corresponding fingerprint image of each imaging hole one by one, and is spliced to form complete fingerprint image.
It should be noted that in addition: fingerprint collecting method of the present invention, applicable to above-mentioned liquid crystal terminal equipment, gathers fingerprint but above-mentioned liquid crystal terminal equipment does not limit to dependence fingerprint collecting method of the present invention.
Above; be only preferred embodiment of the present invention, but protection scope of the present invention is not limited to this, any be familiar with those skilled in the art the present invention disclose technical scope in; 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 (17)
1. 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 fingerprint capturer, and described camera assembly or fingerprint capturer see through the fingerprint of liquid crystal board collection liquid crystal board opposite side under liquid crystal board light transmission state.
2. a liquid crystal terminal equipment, comprise a LCD assembly, it is characterized in that, described LCD assembly is at least made up 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 fingerprint capturer, and described camera assembly or fingerprint capturer see through the fingerprint of liquid crystal board collection liquid crystal board opposite side under liquid crystal board light transmission state.
3. a liquid crystal terminal equipment, comprises a LCD assembly, it is characterized in that,
Described LCD assembly is at least made up 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 fingerprint capturer;
On every layer of blooming piece, at least the position at corresponding through hole is provided with transmittance section;
Described camera assembly or fingerprint capturer can see through transmittance section on described through hole, blooming piece and described liquid crystal board and gather the fingerprint of liquid crystal board opposite side under liquid crystal board light transmission state.
4. a liquid crystal terminal equipment, comprises a LCD assembly, it is characterized in that,
Described LCD assembly is at least made up 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 fingerprint capturer with described imaging hole;
On every layer of blooming piece, at least the position at corresponding imaging hole is provided with transmittance section;
Described fingerprint capturer 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.
5. a liquid crystal terminal equipment, comprises a LCD assembly, it is characterized in that,
Described LCD assembly is at least made up 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 multiple 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 fingerprint capturer with corresponding imaging hole;
On every layer of blooming piece, at least the position at corresponding imaging hole is provided with transmittance section;
Described fingerprint capturer 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.
6. a liquid crystal terminal equipment, comprises a LCD assembly, it is characterized in that,
Described LCD assembly is at least made up 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 multiple 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 multiple imaging holes are arranged at intervals with one or more photoelectric conversion sensors, and described photoelectric conversion sensor coordinates a fingerprint capturer of formation with described multiple imaging holes;
On every layer of blooming piece, at least the position at corresponding imaging hole is provided with transmittance section;
Described fingerprint capturer 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.
7. liquid crystal terminal equipment according to claim 6, is characterized in that, also comprises a control device, and photoelectric conversion sensor gathers the corresponding fingerprint image of each imaging hole one by one described in described control device control.
8. liquid crystal terminal equipment according to claim 6, is characterized in that, also comprises a control device, and liquid crystal board is opened the liquid crystal board of the corresponding fingerprint image of each imaging hole one by one described in described control device control.
9. according to the liquid crystal terminal equipment described in claim 4,5,6,7 or 8, it is characterized in that, the aperture of described imaging hole is 0.001-1mm.
10. according to the liquid crystal terminal equipment described in claim 4,5,6,7 or 8, 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, setting up optical filter.
11. according to the liquid crystal terminal equipment described in claim 4,5,6,7 or 8, it is characterized in that, sets up correcting lens in any one or both sides of described imaging hole.
12. 1 kinds of fingerprint image acquisition methods, is characterized in that, comprise the following steps:
Responding a control signal makes liquid crystal board in light transmission state;
The fingerprint of liquid crystal board opposite side is gathered by a camera head or fingerprint capturer in liquid crystal board one side.
13. fingerprint image acquisition methods according to claim 12, is characterized in that, described at liquid crystal side, by a camera head or fingerprint capturer, fingerprint or the image collection to liquid crystal board opposite side is specially:
Set up the multiple scanning areas for same fingerprint, make between adjacent scanning area overlapped;
The finger print imaging corresponding to each scanning area one by one;
Each fingerprint image that scanning is obtained splices, and obtains complete finger print image.
14. fingerprint image acquisition methods according to claim 12, is characterized in that,
Set up the multiple scanning areas for same fingerprint, make 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 image of each scanning area obtaining one by one,
The each fingerprint image obtaining is spliced to obtain complete finger print image.
15. fingerprint image acquisition methods according to claim 12, is characterized in that,
Set up the multiple scanning areas for same fingerprint, make 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 image of each scanning area obtaining one by one,
The each fingerprint image obtaining is spliced to obtain complete finger print image.
16. 1 kinds of fingerprint capturers, it is characterized in that, described fingerprint capturer is the fingerprint capturer described in the arbitrary claim of the claims 1-15, and this fingerprint capturer comprises the panel with one or more imaging holes, and the location interval of corresponding imaging hole is provided with photoelectric conversion sensor.
17. fingerprint capturers according to claim 16, 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 (2)
| Application Number | Priority Date | Filing Date | Title |
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| 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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| CN201410136810.XA CN103942537A (en) | 2014-04-04 | 2014-04-04 | Liquid crystal terminal device, fingerprint image collection method and fingerprint collector |
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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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