CN205983500U - Fingerprint sensor's detection device , fingerprint sensor , electronic equipment - Google Patents
Fingerprint sensor's detection device , fingerprint sensor , electronic equipment Download PDFInfo
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- CN205983500U CN205983500U CN201620578627.XU CN201620578627U CN205983500U CN 205983500 U CN205983500 U CN 205983500U CN 201620578627 U CN201620578627 U CN 201620578627U CN 205983500 U CN205983500 U CN 205983500U
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Abstract
The utility model discloses a detection device for detect fingerprint sensor, use fingerprint sensor includes the electrode, electrode package draws together the sensor electrode. Detection device includes: detection module for with predetermined mode to the part drive signal is applyed to the electrode, and detects other the sensing signal that the electrode was coupled to is until obtaining all the sensing signal of sensor electrode, and the judge module, be used for the basis the sensing signal of sensor electrode judges whether the sensor electrode exists the defect. The utility model discloses embodiment's detection device applys drive signal through the electrode at fingerprint sensor itself to utilize the fringe field to be coupled to other electrodes with drive signal, thereby can judge whether the sensor electrode exists the defect according to the voltage variation information of sensor electrode. Consequently, need not to apply finger and electric conductor to fingerprint sensor go up alright with detection, improvement detection efficiency. Furthermore, the utility model provides a fingerprint sensor and electronic equipment.
Description
Technical field
The utility model is related to fingerprint sensor field, fills particularly to a kind of detection for detecting fingerprint sensor
Put, fingerprint sensor and electronic equipment.
Background technology
Self-tolerant fingerprint sensor includes testing circuit and the sensor electrode of two-dimensional array arrangement.During use, detection electricity
Road applies drive signal to each sensor electrode, and detects the induced signal of each sensor electrode, each sensor electrode
Constitute a pixel of fingerprint sensor.So, when finger is applied to fingerprint sensor, each sensor electrode just can be examined
Survey the voltage change that fingerprint correspondence a little causes, correspond to the depth of any such that it is able to describe fingerprint, and electric with other sensors
Pole (pixel) describes the lines of whole fingerprint jointly, forms fingerprint image.
However, sensor electrode itself and sensor electrode there may be defect with the connection of testing circuit, lead to fingerprint
There is bad point in sensor, some defects may lead to whole fingerprint sensor cannot normal work, or even in fingerprint sensor group
May lead to the whole fingerprint recognition module cannot normal work after being attached to fingerprint recognition module.Therefore, the detection of fingerprint sensor
Particularly significant.
However, (e.g., the detection of current fingerprint sensor needs to apply finger or other conductive material on fingerprint sensor
Conducting resinl), then detect the induced signal of each sensor electrode, judge whether to meet the requirements, inconvenient, and detect
Efficiency is low.
Utility model content
The utility model is intended at least solve one of technical problem present in prior art.For this reason, the utility model carries
For a kind of detection means for detecting fingerprint sensor, fingerprint sensor and electronic equipment.
The utility model provides a kind of detection means, and for detecting fingerprint sensor, described fingerprint sensor includes electrode,
Described electrode includes sensor electrode it is characterised in that described detection means includes：
Detection module, for applying drive signal to partly described electrode, and detect other described electrodes in a predefined manner
The induced signal being coupled to, until obtain the induced signal of all described sensor electrodes；And
Judge module, lacks for judging that described sensor electrode whether there is according to the induced signal of described sensor electrode
Fall into.
In some embodiments, described detection module is based on mutual capacitance type sensing principle, partly described electrode to be applied to drive
Dynamic signal simultaneously detects the induced signal that other described electrodes are coupled to.
In some embodiments, described sensor electrode is in that two-dimensional array is arranged, and described detection module is used for：
Drive signal is applied to the described sensor electrode of n*k+c row or column, wherein, k is natural number and inclusion zero, n is
Natural number and more than or equal to 2, c be natural number and include zero, c be less than n, n*k+c≤N, and c different from k when be zero, N be described
Total line number of sensor electrode or total columns；
The induced signal of described sensor electrode in addition to the described sensor electrode of n*k+c row or column for the detection；
Sensor electrode described in a row or column in addition to the described sensor electrode of n*k+c row or column is applied to drive letter
Number；And
The induced signal of the described sensor electrode of detection n*k+c row or column.
In some embodiments, described sensor electrode is in that two-dimensional array is arranged, and described detection module is used for：
Drive signal is applied to the described sensor electrode of 2*k+1 row or column, wherein, 2*k+1≤N, k are natural number and bag
Include total line number that zero, N is described sensor electrode or total columns；
The induced signal of the described sensor electrode of detection 2k row or column；
Drive signal is applied to the described sensor electrode of 2k row or column；And
The induced signal of the described sensor electrode of detection 2*k+1 row or column.
The utility model provides a kind of fingerprint sensor it is characterised in that including：
Multiple sensor electrodes, arrange in two-dimensional array；With
Detection means, including：
Drive module, is connected with the plurality of sensor electrode alternative, provides drive signal to described for timesharing
Multiple sensor electrodes；
Receiver module, is connected with the plurality of sensor electrode alternative, is derived from the plurality of sensor for receiving
The sensing signal of electrode output；With
Judge module, judges whether the sensor electricity of defect according to the sensing signal that described receiver module receives
Pole.
In some embodiments, in synchronization, described drive module is electrically connected with operative sensor electrode, described connects
Receive module to electrically connect with another part sensor electrode, between described two parts sensor electrode, form mutual capacitance.
In some embodiments, described fingerprint sensor is mutual capacitance type when detection sensor electrode whether there is defect
Fingerprint sensor.
In some embodiments, described fingerprint sensor is the chip after a nude film or an encapsulation.
In some embodiments, described fingerprint sensor further includes fingerprint sensing circuit, described fingerprint sensing electricity
Road is used for driving the plurality of sensor electrode execution fingerprint sensing, and described fingerprint sensor is from appearance when executing fingerprint sensing
Formula fingerprint sensor.
The utility model provides a kind of electronic equipment, including the fingerprint sensor described in above-mentioned middle any one.
The detection method of the utility model embodiment and detection means are passed through to apply in the electrode of fingerprint sensor itself
Drive signal, and using fringe field, drive signal is coupled to other electrodes, such that it is able to the voltage according to sensor electrode
Change information judges that sensor electrode whether there is defect.It is therefore not necessary to apply finger and electric conductor on fingerprint sensor just
Can detect, improve detection efficiency.Correspondingly, the quality of described fingerprint sensor and electronic equipment is higher.
Additional aspect of the present utility model and advantage will be set forth in part in the description, partly will be from explained below
In become obvious, or recognized by practice of the present utility model.
Brief description
Above-mentioned and/or additional aspect of the present utility model and advantage can be from retouching to embodiment with reference to accompanying drawings below
Will be apparent from stating with easy to understand, wherein：
Fig. 1 is the schematic flow sheet of the detection method of the utility model embodiment.
Fig. 2 is a kind of schematic diagram of fingerprint sensor.
Fig. 3 is the high-level schematic functional block diagram of the detection means of the utility model embodiment.
Fig. 4 is the structural representation that detection means shown in Fig. 3 is connected with partial electrode.
Fig. 5 is a schematic diagram of the detection method of the utility model embodiment.
Fig. 6 is another schematic diagram of the detection method of the utility model embodiment.
Fig. 7 is another schematic diagram of the detection method of the utility model embodiment.
Fig. 8 is the schematic diagram of the detection method of another embodiment of the utility model.
Fig. 9 is the structural representation of an embodiment of the utility model electronic equipment.
Specific embodiment
Embodiment of the present utility model is described below in detail, the example of embodiment is shown in the drawings, wherein, identical
Or the element that similar label represents same or similar element from start to finish or has same or like function.
Embodiment below with reference to Description of Drawings is exemplary, is only used for explaining the utility model, and can not
It is interpreted as to restriction of the present utility model.
Further, described feature, structure can combine in one or more embodiment party in any suitable manner
In formula.In the following description, provide many details thus being given, embodiment of the present utility model to be fully understood.
However, one of ordinary skill in the art would recognize that, there is no one of described specific detail or more, or adopt other knots
Structure, constituent element etc. are it is also possible to put into practice the technical solution of the utility model.In other cases, it is not shown in detail or describe known knot
Structure or operation are to avoid fuzzy the utility model.
Refer to Fig. 1 and Fig. 2, the detection method of the utility model embodiment is used for detecting fingerprint sensor 10, fingerprint
Sensor includes electrode 12, and electrode 12 includes sensor electrode 122.It is preferred that multiple sensor electrodes 122 are in two-dimensional array arranging
Cloth.So, change ground, multiple sensor electrodes 122 also can be in Else Rule or non-regular arrangement.Detection method include with
Lower step：
Detecting step, applies drive signal to partial electrode 12 in a predefined manner, and detects that other electrodes 12 are coupled to
Induced signal, until obtain all the sensors electrode 122 on induced signal；And
Judge step, judge that sensor electrode 122 whether there is defect according to the induced signal on sensor electrode 122.
It is preferred that the operation principle based on mutual capacitance for the detecting step, sensor electrode 122 is detected.
See also Fig. 3 and Fig. 4, the detection means 20 of the utility model embodiment includes detection module 22 and judges
Module 24.Detection module 22 is used for applying drive signal to partial electrode 12 in a predefined manner, and detects other 12 couplings of electrode
The induced signal closing, until obtain the induced signal of all the sensors electrode 122.Judge module 14 is used for according to sensor electricity
Induced signal on pole 122 come to judge sensor electrode 122 whether there is defect.
In some embodiments, detection method can be implemented by detection means 20, and for example detecting step can be by detecting
Module 22 is implemented, and judges that step can be implemented by judge module 24.
The detection method of the utility model embodiment and detection means 20 are passed through in fingerprint sensor 10 electrode of itself
12 applying drive signals, and using fringe field, drive signal is coupled to other electrodes 12, such that it is able to according to sensor electricity
The induced signal being coupled on pole 122 to judge sensor electrode 122 whether there is defect.For example, drive signal, sensing letter
Number it is voltage signal.During detection, sensor electrode 122 can be obtained in fringe field coupling by theoretical or experiment
Under induced signal scheduled voltage, then the magnitude of voltage of the sensor electrode detecting 122 is compared with scheduled voltage,
If equal to or be approximately equal to scheduled voltage, then prove sensor electrode 122 also can carry out in normal work normally
Detection, therefore may determine that not existing defects.On the contrary, then may determine that sensor electrode 122 there may be defect.Therefore,
Finger and electric conductor need not be applied just can detect to fingerprint sensor 10, improve detection efficiency.
Electrode 12 can be Copper Foil, and is formed at substrate (not shown) by semiconductor technology, thus constituting fingerprint sensing
The part-structure of device 10.In some embodiments, electrode 12 can be entirely sensor electrode 122.Each sensor electrode
122 pixels that may be constructed fingerprint sensor 10.So, can be by arranging number and the arrangement of sensor electrode 122
Control the parameters such as sensing region and the resolution of fingerprint sensor 10.
Further, described detection module 22 includes drive module 221 and receiver module 223.Described drive module 221 with
The plurality of sensor electrode 122 is alternative to be connected, and provides drive signal to the plurality of sensor electrode for timesharing
122.Described receiver module 223 is connected with the plurality of sensor electrode 122 alternative, is derived from the plurality of biography for receiving
The sensing signal of sensor electrode 122 output.Described judge module 24 connects described receiver module 223, for according to described reception
The sensing signal that module 223 receives is judging whether the sensor electrode 122 of defect.
Described drive module 211 is for example passed through to switch (not shown) with the plurality of sensor electrode 122 alternative even
Connect.Described receiver module 223 is for example passed through switch (not shown) and is connected with the plurality of sensor electrode 122 alternative.
In synchronization, described drive module 211 is electrically connected with operative sensor electrode 122, described receiver module 223 with
Another part sensor electrode 122 electrically connects, and forms mutual capacitance between described two parts sensor electrode 122.
Citing ground, described drive module 221 is electrically connected by switch with the sensor electrode 122 of the first row, provides driving
Signal is to the sensor electrode 122 of the first row.The sensor electrode 122 of described receiver module 223 and the second row passes through switch electricity
Connect, receive the sensing signal of the sensor electrode 122 from the second row.Described judge module 24 is according to described receiver module
223 sensing signals receiving are judging the electrode with the presence or absence of defect in the sensor electrode 122 of the second row.For example, if institute
State the sensor electrode 122 of the second row not existing defects, the sensing signal that described receiver module 223 receives should be all identical
Or approximately the same.If having sensor electrode 122 existing defects, existing defects in the sensor electrode 122 of described second row
The sensing signal that exports to receiver module 223 of sensor electrode 122 be different or differ markedly from other normal sensors
The sensing signal that electrode 122 is exported.
In detection, described detection means 20 is to be detected using mutual capacitance type sensing principle, wherein, the sensing of the first row
The sensor electrode 122 of device electrode 122 and the second row forms mutual capacitance.
Similarly, using mutual capacitance type Cleaning Principle, defects detection is carried out to the sensor electrode 122 of other even number lines, when
The sensor electrode 122 of all even number lines detect qualified after, then defects detection is carried out to the sensor electrode 122 of odd-numbered line,
Until having detected all of sensor electrode 122.
So, the application does not limit to above-mentioned detection ordering, changes ground, can be other suitable detection modes yet yet, example
As the sensor electrode 122 of the second row is detected qualified after, next just defect is carried out to the sensor electrode 122 of the first row
Detection is also possible.
It is preferred that described detection means 20 is arranged in described fingerprint sensor 10, described fingerprint sensor 10 is a core
Piece.So, change ground, described detection means 20 is alternatively independent of the device outside described fingerprint sensor 10.
In addition, fingerprint sensor 10 further includes fingerprint sensing circuit (not shown).Described fingerprint sensing circuit is used for
Drive the plurality of sensor electrode 122 execution fingerprint sensing.Described fingerprint sensing circuit provides pumping signal to sensor electricity
Pole 122 simultaneously receives the fingerprint sensing signal exporting from sensor electrode 122, thus obtaining finger print information.
Different from the matching relationship of sensor electrode 122 according to testing circuit, fingerprint sensor 10 can be that self-tolerant refers to
Line sensor or mutual capacitance type fingerprint sensor, self-tolerant fingerprint sensor refers mainly to encourage and detects all by same sensing
Device electrode is carried out, and mutual capacitance type fingerprint sensor then refers mainly to some specific sensor electrodes are encouraged, and detect right therewith
The voltage change of the sensor electrode answered.
The fingerprint sensor 10 of the utility model embodiment is self-tolerant fingerprint sensor when executing fingerprint sensing,
When detection sensor electrode 122 whether there is defect, then for mutual capacitance type fingerprint sensor.
It should be noted that detection sensor electrode 122 is fingerprint module factory in fingerprint sensor 10 with the presence or absence of defect
The detection carrying out before dispatching from the factory.Fingerprint sensor 10 execution fingerprint sensing is when fingerprint sensor 10 is assembled into electronic equipment
The work carrying out afterwards on 100 (for example, mobile phones, see below).
Citing ground, described fingerprint sensing circuit is two different circuit from described detection means 20, or, described fingerprint
The circuit of sensing circuit multiplexing part detection means 20, for example, multiplexing reception module 223.Described fingerprint sensor 10 can enter one
Step includes control unit (not shown), and described control unit is used for corresponding to control fingerprint detection circuit according to the instruction receiving
Work with described detection means 20.When carrying out defects detection, described instruction is for example derived from testing equipment.When execution fingerprint sensing
When, described instruction for example carrys out the main control chip of electronic equipment 100 (seeing below) described in self-application.
As previously described, when detection sensor electrode 122 whether there is defect, for example, it is possible to by controlling detection electricity
Road applies drive signal to operative sensor electrode 122, then detects the sensing letter that remaining sensor electrode 122 is coupled to
Number come to judge sensor electrode 122 whether there is defect.
In the electrode 12 entirely embodiment of sensor electrode 122, detecting step includes following sub-step：
Drive signal is applied to the sensor electrode 122 of n*k+c row or column, wherein, for natural number and inclusion zero, n is certainly to k
So number and more than or equal to 2, c be natural number and include zero, c be less than n, n*k+c≤N, and k different from c when be zero, N be described biography
Total line number of sensor electrode or total columns；
Induced signal on sensor electrode 122 in addition to the sensor electrode 122 of n*k+c row or column for the detection；
Drive signal is applied to a line in addition to the sensor electrode 122 of n*k+c row or column or sensor electrode 122；
And
The induced signal of the sensor electrode 122 of detection n*k+c row or column.
In some embodiments, above-mentioned sub-step can be realized by detection module 12, that is to say, detection module 12 can
For applying drive signal to the sensor electrode 122 of n*k+c row or column, wherein, k is natural number and includes zero, n for nature
Count and for natural number and include zero, c less than n, the biography detecting in addition to the sensor electrode 122 of n*k+c row or column more than or equal to 2, c
The induced signal of sensor electrode 122, a line sensor electrode 122 in addition to the sensor electrode 122 of n*k+c row or column is applied
The induced signal of the sensor electrode 122 of drive signal and detection n*k+c row or column.
In these embodiments, the sensing principle based on mutual capacitance, indeed through to embarking on journey or sensing in column
Device electrode 122 applies drive signal to obtain the induced signal of all the sensors electrode 122.So, the applying of drive signal and
The detection of induced signal is more regular, can simplify the control of testing circuit, in addition, the process to the induced signal detecting
Also it is easy to become.
It is appreciated that n, k and c are constant, and non-variables is it is possible to arrange according to demand.
It is appreciated that n than larger when, drive signal will be applied to the sensor electrode 122 being spaced distant row or column,
So, it is understood that there may be from sensor electrode 122 sensor electrode 122 farther out applying drive signal, lead to induced signal relatively
Weak, even if it should also be recognized, however, that such embodiment, ratio does not apply during drive signal by force, therefore induced signal yet yet
Can realize detecting.For example, work as n=10, c=1, drive signal is applied to the sensor electrode 122 of 10k+1 row or column, then
The sensor electrode 122 of 5k+1 row or column is from sensor electrode 5 row or column applying drive signal, distant, accordingly, it is possible to lead
Cause the sensing letter signal that the sensor electrode 122 of 5k+1 row or column produces weaker.But, such induced signal still can be used
In detection sensor electrode 122.And in such embodiment, can be to the sensor electrode 122 of fewer row or column
Apply drive signal and can achieve detection, therefore, it can reduce the power consumption of detection.
Certainly, in other implementations, in order to more efficient, more accurately detection sensor electrode 122 it is also possible to close
Reason setting n, thus avoid induced signal weaker.It is appreciated that n is less, the induced signal that same drive signal can produce
Stronger.Refer to Fig. 5, n=2, c=1, in other words the sub-step of detecting step is：
Drive signal is applied to the sensor electrode 122 of odd number (2k+1) row；
The induced signal of the sensor electrode 122 of detection even number line (in addition to odd-numbered line)；
The sensor electrode 122 of antithesis several rows (in addition to odd-numbered line) applies drive signal；And
The induced signal of the sensor electrode 122 of detection odd-numbered line (2k+1).
Refer to Fig. 6, another example of embodiment above can be that sensor electrode 122 in column is applied to drive
Signal, and n=2, c=1, in other words the sub-step of detecting step be：
The sensor electrode 122 that odd number (2k+1) is arranged applies drive signal；
The induced signal of the sensor electrode 122 of detection even column (in addition to odd column)；
The sensor electrode 122 of dual sequence (in addition to odd column) applies drive signal；And
The induced signal of the sensor electrode 122 of detection odd column (2k+1).
The benefit of both the above example is, due to being applied in the sensor electrode 122 of drive signal and examined sensing
Device electrode 122 is interlacing, and the coupling effect of fringe field is strong, and the voltage signal therefore detecting is strong, beneficial to judgement below.
Refer to Fig. 6, in other example, can be that drive signal is applied to rows of sensor electrode 122, and n
=3, c=1, in other words the sub-step of detecting step be：
Drive signal is applied to the sensor electrode 122 of 3k+1 row；
The induced signal of sensor electrode 122 in addition to 3k+1 row for the detection；
A line (such as 3k+2 row) sensor electrode 122 to the sensor electrode 122 in addition to 3k+1 row applies to drive letter
Number；And
The induced signal of the sensor electrode 122 of detection 3k+1 row.
It is appreciated that in such example, being applied in the row of the sensor electrode 122 of drive signal by reasonable selection
Number, it is possible to reduce be applied in sensor electrode 122 sum of detection, such that it is able to reduce energy consumption.
Certainly, above example is only to embarking on journey or embark on journey in column or sensor electrode 122 in column applies drive signal
Or drive signal change signal, to obtain the explanation of the induced signal of all the sensors electrode 122, should not limit this practicality new
The scope of type.
Refer to Fig. 8, in the fingerprint sensor 10 of the utility model further embodiments, electrode 12 is except sensor electrode
Conductive protection element 124 is also included outside 122.Multiple void region 127 are arranged on described conductive protection element 124, the plurality of
Sensor electrode 122 is separately positioned among described void region 127, and and described conductive protection element 124 between presence
Gap, to allow the two to insulate.
It is preferred that described conductive protection element 124 is structure as a whole, and it is located at same layer with described sensor electrode 122.
Described conductive protection element 124 is alternatively multiple protection rings, and the plurality of protection ring is respectively around the plurality of biography
Sensor electrode 122 is arranged.The plurality of protection ring can be single circulus, is alternatively interconnected with one another the knot being integrated
Structure.So, the structure of described conductive protection element 124 does not limit to structure described here, alternatively other suitable structures.
Detecting step includes following sub-step：
Drive signal is applied to conductive protection element 124；And
The induced signal of detection sensor electrode 122.
In some embodiments, above-mentioned sub-step can be realized by detection module 22, that is to say, detection module 22 can
For conductive protection element 124 is applied with the induced signal of drive signal and detection sensor electrode 122.
Please refer to Fig. 3 and Fig. 4 in the lump again, specifically, described drive module 221 connects described conductive protection element 124, carries
Give described conductive protection element 124 for described drive signal.Described receiver module 223 connects the plurality of sensor electrode 122,
Receive the sensing signal from sensor electrode 122 output.
Described judge module 24 determines whether sensor electrode according to the sensing signal that described receiver module 223 receives
122 existing defects.
When in the present embodiment, to sensor electrode 122 execution defects detection, described conductive protection element 124 and institute
State multiple sensor electrodes 122 and form mutual capacitance.
Similar aforementioned, described detection means 20 can be integrated in the fingerprint sensor 10 of present embodiment, alternatively independently
Device outside described fingerprint sensor 10.
Described fingerprint sensor 10 further includes aforesaid fingerprint sensing circuit.Described fingerprint sensing circuit is used for driving
The plurality of sensor electrode 122 executes self-tolerant fingerprint sensing.Described fingerprint sensing circuit provides pumping signal to sensor
Electrode 122 simultaneously receives the fingerprint sensing signal exporting from sensor electrode 122, thus obtaining finger print information.
Conductive protection element 14 is grounded in fingerprint sensor 10 fingerprint sensing, be sensor electrode 122 play electrostatic prevent
The effect of shield.The ground signalling voltage of described ground is usually 0 volt or 0 volt about, generally applies described fingerprint sensor 10
Electronic equipment 100 (seeing below) equipment ground.It should be noted that described conductive protection element 14 can directly or indirectly connect
Ground.
When described conductive protection element 14 is indirect earthed, described conductive protection element 14 is for example directly connected to a reference
Ground (not shown), described reference ground is connected to described equipment ground by a modulation circuit (not shown).Letter in described reference ground
Number for change signal, for example, be derived from described modulation circuit modulated signal.Described modulation circuit is according to described equipment on the ground
Ground signalling corresponding with voltage drive signals produce described modulated signal.
It is appreciated that in these embodiments, detected using protection ring 124, deduplication can be saved and apply to drive
The step of signal, thus improve detection efficiency.
Refer to Fig. 9, Fig. 9 is the structural representation of an embodiment of the utility model electronic equipment.Described electronics sets
Standby 100 fingerprint sensors 10 including any of the above-described embodiment.
Specifically, electronic equipment 100 is such as portable electronic product or household formula electronic product or vehicle electronics product.
However, described electronic equipment does not limit to listed electronic product, can also be other suitable electronic products.Described portable electricity
Sub- product is, for example, mobile terminal, and described mobile terminal is, for example, mobile phone, panel computer, notebook computer, Wearable product etc.
Suitable mobile terminal.Described household formula electronic product is, for example, the suitable family such as intelligent door lock, TV, refrigerator, desktop computer
Occupy formula electronic product.Described vehicle electronics product is, for example, that Vehicular display device, drive recorder, navigator, car refrigerator etc. close
Suitable vehicle electronics product.
In some embodiments, electronic equipment 100 includes housing 104, and fingerprint sensor 10 is located in housing 104, shell
Body 104 offers through hole 106, and through hole 106 exposes fingerprint sensor 10.
Therefore, through hole 106 can help to finger and the positioning of fingerprint sensor 10 during user's typing fingerprint, facilitates user to grasp
Make.In the utility model example, through hole 106 be manhole it will be understood that through hole 106 alternatively square, oval etc. its
The through hole of its shape.Through hole 106 can be opened in the back position of housing 104.
Described fingerprint sensor 10 may also be arranged on the suitable position such as front or side of electronic equipment 100.Further
Ground, described fingerprint sensor 10 may also be arranged on the inside of electronic equipment 100, and not necessarily exposes fingerprint sensing by through hole
Device 10.
In the description of embodiment of the present utility model it is to be understood that term " " center ", " longitudinal ", " horizontal ",
" length ", " width ", " thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ",
The orientation of instruction such as " interior ", " outward ", " clockwise ", " counterclockwise " or position relationship are to be closed based on orientation shown in the drawings or position
System, is for only for ease of description embodiment of the present utility model and simplifies description, rather than the device of instruction or hint indication
Or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to of the present utility model
The restriction of embodiment.Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or hint phase
To importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", " second " feature permissible
Express or implicitly include one or more described feature.In the description of embodiment of the present utility model, " many
Individual " it is meant that two or more, unless otherwise expressly limited specifically.
In the description of embodiment of the present utility model, it should be noted that unless otherwise clearly defined and limited,
Term " installation ", " being connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected,
Or be integrally connected；Can be to be mechanically connected or electrically connect or can mutually communicate；Can be to be joined directly together, also may be used
To be indirectly connected to by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For
For those of ordinary skill in the art, can understand above-mentioned term as the case may be in embodiment of the present utility model
Concrete meaning.
In embodiment of the present utility model, unless otherwise clearly defined and limited, fisrt feature is in second feature
It " on " or D score can include the first and second feature directly contacts it is also possible to include the first and second features be not direct
Contact but by the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and
" above " include fisrt feature directly over second feature and oblique upper, or to be merely representative of fisrt feature level height be higher than second
Feature.Fisrt feature second feature " under ", " lower section " and " below " include fisrt feature directly over second feature and tiltedly
Top, or it is merely representative of fisrt feature level height less than second feature.
Following disclosure provides many different embodiments or example for realizing embodiment of the present utility model
Different structure.In order to simplify the disclosure of embodiment of the present utility model, hereinafter to the part of specific examples and arrange into
Row description.Certainly, they are only merely illustrative, and purpose does not lie in restriction the utility model.Additionally, enforcement of the present utility model
Mode can in different examples repeat reference numerals and/or reference letter, this repeat to be for purposes of simplicity and clarity,
Itself do not indicate the relation between discussed various embodiment and/or setting.Additionally, embodiment of the present utility model carries
The various specific technique having supplied and the example of material, but those of ordinary skill in the art can be appreciated that answering of other techniques
With and/or other materials use.
In the description of this specification, reference term " embodiment ", " some embodiments ", " schematically enforcement
The description of mode ", " example ", " specific example " or " some examples " etc. means the tool with reference to described embodiment or example description
Body characteristicses, structure, material or feature are contained at least one embodiment of the present utility model or example.In this specification
In, identical embodiment or example are not necessarily referring to the schematic representation of above-mentioned term.And, the concrete spy of description
Levy, structure, material or feature can combine in any one or more embodiments or example in an appropriate manner.
In flow chart or any process of otherwise describing of here or method description are construed as, represent and include
The module of the code of executable instruction of one or more steps for realizing specific logical function or process, fragment or portion
Point, and the scope of preferred embodiment of the present utility model includes other realization, wherein can not press shown or discuss
Order, including according to involved function by substantially simultaneously in the way of or in the opposite order, carry out perform function, this should by this
The embodiment person of ordinary skill in the field of utility model is understood.
Represent in flow charts or the logic that otherwise describes of here and/or step, for example, it is possible to be considered as to use
In the order list of the executable instruction realizing logic function, may be embodied in any computer-readable medium, for
(system as computer based system, including processing module or other can be from instructions for instruction execution system, device or equipment
Execution system, device or equipment instruction fetch the system of execute instruction) use, or combine these instruction execution systems, device or
Equipment and use.For the purpose of this specification, " computer-readable medium " can be any can comprise, store, communicating, propagating or
Transmission procedure uses for instruction execution system, device or equipment or with reference to these instruction execution systems, device or equipment
Device.The more specifically example (non-exhaustive list) of computer-readable medium includes following：There are one or more wirings
Electrical connection section (electronic installation), portable computer diskette box (magnetic device), random access memory (RAM), read-only storage
(ROM), erasable edit read-only storage (EPROM or flash memory), fiber device, and portable optic disk is read-only deposits
Reservoir (CDROM).In addition, computer-readable medium can even is that the paper that can print described program thereon or other suitable
Medium, because edlin, interpretation or if necessary with it can then be entered for example by carrying out optical scanner to paper or other medium
Its suitable method is processed to electronically obtain described program, is then stored in computer storage.
It should be appreciated that each several part of embodiment of the present utility model can be with hardware, software, firmware or combinations thereof
To realize.In the above-described embodiment, multiple steps or method can be with storage in memory and by suitable instruction execution
The software of system execution or firmware are realizing.For example, if realized with hardware, and the same in another embodiment, can use
Any one of following technology well known in the art or their combination are realizing：Have for data-signal is realized with logic work(
The discrete logic of the logic gates of energy, has the special IC of suitable combinational logic gate circuit, programmable gate
Array (PGA), field programmable gate array (FPGA) etc..
Those skilled in the art are appreciated that to realize all or part step that above-described embodiment method carries
Suddenly the program that can be by completes come the hardware to instruct correlation, and described program can be stored in a kind of computer-readable storage medium
In matter, this program upon execution, including one or a combination set of the step of embodiment of the method.
Additionally, can be integrated in a processing module in each functional unit in each embodiment of the present utility model,
Can also be that unit is individually physically present it is also possible to two or more units are integrated in a module.Above-mentioned collection
The module becoming both can be to be realized in the form of hardware, it would however also be possible to employ the form of software function module is realized.Described integrated
If module realized using in the form of software function module and as independent production marketing or use when it is also possible to be stored in one
In computer read/write memory medium.
Storage medium mentioned above can be read-only storage, disk or CD etc..
Although of the present utility model embodiment has been shown and described above it is to be understood that above-mentioned embodiment party
Formula is exemplary it is impossible to be interpreted as that those of ordinary skill in the art is of the present utility model to restriction of the present utility model
In the range of can to above-mentioned enforcement implement be changed, change, replace and modification.
Claims (10)
1. a kind of detection means, for detecting fingerprint sensor, described fingerprint sensor includes electrode, and described electrode includes sensing
Device electrode is it is characterised in that described detection means includes：
Detection module, for applying drive signal to partly described electrode, and detect other described electrode institutes coupling in a predefined manner
The induced signal closing, until obtain the induced signal of all described sensor electrodes；And
According to the induced signal of described sensor electrode, judge module, for judging that described sensor electrode whether there is defect.
2. detection means as claimed in claim 1 is it is characterised in that described detection module is to sense principle pair based on mutual capacitance type
Partly described electrode applies drive signal and detects the induced signal that other described electrodes are coupled to.
3. detection means as claimed in claim 1 is it is characterised in that described sensor electrode is in two-dimensional array arrangement, described
Detection module is used for：
Drive signal is applied to the described sensor electrode of n*k+c row or column, wherein, k is natural number and includes zero, n for nature
Number and more than or equal to 2, c be natural number and include zero, c be less than n, n*k+c≤N, and c different from k when be zero, N be described sensing
Total line number of device electrode or total columns；
The induced signal of described sensor electrode in addition to the described sensor electrode of n*k+c row or column for the detection；
Drive signal is applied to the sensor electrode described in a row or column in addition to the described sensor electrode of n*k+c row or column；And
The induced signal of the described sensor electrode of detection n*k+c row or column.
4. detection means as claimed in claim 1 is it is characterised in that described sensor electrode is in two-dimensional array arrangement, described
Detection module is used for：
Drive signal is applied to the described sensor electrode of 2*k+1 row or column, wherein, 2*k+1≤N, k are natural number and inclusion
Zero, N are total line number of described sensor electrode or total columns；
The induced signal of the described sensor electrode of detection 2k row or column；
Drive signal is applied to the described sensor electrode of 2k row or column；And
The induced signal of the described sensor electrode of detection 2*k+1 row or column.
5. a kind of fingerprint sensor is it is characterised in that include：
Multiple sensor electrodes, arrange in two-dimensional array；With
Detection means, including：
Drive module, is connected with the plurality of sensor electrode alternative, provides drive signal to the plurality of for timesharing
Sensor electrode；
Receiver module, is connected with the plurality of sensor electrode alternative, is derived from the plurality of sensor electrode for receiving
The sensing signal of output；With
Judge module, judges whether the sensor electrode of defect according to the sensing signal that described receiver module receives.
6. fingerprint sensor as claimed in claim 5 is it is characterised in that in synchronization, described drive module is passed with part
Sensor electrode electrically connects, and described receiver module electrically connected with another part sensor electrode, described two parts sensor electrode it
Between formed mutual capacitance.
7. fingerprint sensor as claimed in claim 5 is it is characterised in that described fingerprint sensor in detection sensor electrode is
It is mutual capacitance type fingerprint sensor during no existing defects.
8. fingerprint sensor as claimed in claim 5 it is characterised in that described fingerprint sensor be a nude film or one encapsulation after
Chip.
9. the fingerprint sensor as described in any one in claim 5-8 is it is characterised in that described fingerprint sensor is further
Including fingerprint sensing circuit, described fingerprint sensing circuit is used for driving the plurality of sensor electrode execution fingerprint sensing, described
Fingerprint sensor is self-tolerant fingerprint sensor when executing fingerprint sensing.
10. a kind of electronic equipment, including the fingerprint sensor described in any one in claim 5-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620578627.XU CN205983500U (en) | 2016-06-15 | 2016-06-15 | Fingerprint sensor's detection device , fingerprint sensor , electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620578627.XU CN205983500U (en) | 2016-06-15 | 2016-06-15 | Fingerprint sensor's detection device , fingerprint sensor , electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205983500U true CN205983500U (en) | 2017-02-22 |
Family
ID=58021866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620578627.XU Withdrawn - After Issue CN205983500U (en) | 2016-06-15 | 2016-06-15 | Fingerprint sensor's detection device , fingerprint sensor , electronic equipment |
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| Country | Link |
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| CN (1) | CN205983500U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106529383A (en) * | 2016-06-15 | 2017-03-22 | 深圳信炜科技有限公司 | Fingerprint sensor detection method and device, fingerprint sensor and electronic equipment |
| WO2017215496A1 (en) * | 2016-06-15 | 2017-12-21 | 深圳信炜科技有限公司 | Fingerprint-sensor testing apparatus, fingerprint sensor, and electronic device |
| CN107644220A (en) * | 2017-09-30 | 2018-01-30 | 上海摩软通讯技术有限公司 | the fingerprint identification method and system of mobile terminal |
-
2016
- 2016-06-15 CN CN201620578627.XU patent/CN205983500U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106529383A (en) * | 2016-06-15 | 2017-03-22 | 深圳信炜科技有限公司 | Fingerprint sensor detection method and device, fingerprint sensor and electronic equipment |
| WO2017215496A1 (en) * | 2016-06-15 | 2017-12-21 | 深圳信炜科技有限公司 | Fingerprint-sensor testing apparatus, fingerprint sensor, and electronic device |
| WO2017215562A1 (en) * | 2016-06-15 | 2017-12-21 | 深圳信炜科技有限公司 | Fingerprint sensor detection method and device, fingerprint sensor, electronic device |
| CN106529383B (en) * | 2016-06-15 | 2023-12-05 | 柳州梓博科技有限公司 | Fingerprint sensor detection method and device, fingerprint sensor and electronic equipment |
| CN107644220A (en) * | 2017-09-30 | 2018-01-30 | 上海摩软通讯技术有限公司 | the fingerprint identification method and system of mobile terminal |
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