Fingerprint recognition component and its electronic device
Technical field
The present invention relates to fingerprint recognition field, especially a kind of fingerprint recognition component and with the fingerprint recognition component
Electronic device.
Background technique
With the extensive use of portable terminal in people's daily life, the function of present portable terminal is increasingly
It is powerful, and this diversified function facilitates user.But portable terminal is providing the same of more conveniences for user
When, too many personal information is carried, if this portable terminal is once losing or being stolen, these information are not due to having
Relevant protection is carried out, therefore is easy to let out, is made troubles to user.Therefore, some guarantors are on portable terminal
The setting of close aspect is very necessary.
The function of keeping secret of traditional portable terminal for having touch screen is setting such as keyboard on portable terminal nothing but
The software functions such as lock, and secrecy is realized by input password.This traditional portable terminal for having touch screen, usual key
Disk lock is protrusively provided edge side in portable terminal in the form of key, thus user grab pinch portable terminal when or be not intended to
Between can press keypad lock, to drive portable terminal, consume the electricity of portable terminal.Also, due in portable terminal
Edge side be provided with keypad lock and to give unsmooth, irregular feeling reduce the exterior quality of portable terminal.
Meanwhile when by input password to realize secrecy, password is inputted every time, therefore seem more troublesome, and password holds
Easily being cracked causes function of keeping secret to fail.
Summary of the invention
The purpose of the present invention is to provide a kind of fingerprint recognition component and the electronic device with the fingerprint recognition component,
Fingerprint recognition and its switch control are realized on the electronic devices such as such as portable terminal.
According to an aspect of the present invention, a kind of fingerprint recognition component is provided characterized by comprising shell has one
Pedestal, the pedestal have one first opening;Flexible substrate, is set to the top of the pedestal and can be above and below the relatively described pedestal
It is mobile;Fingerprint detection element is set in the flexible substrate;First electric guide portion, is set in the flexible substrate, one
End connects the fingerprint detection element;Second electric guide portion, is set in the flexible substrate;Third electricity guide portion, is set to
In the flexible substrate;Support frame is arranged at intervals at the lower section of the pedestal, has one to protrude and correspond to the metal clips
Ground is located at the lug boss below the third lead;Switching device is set between the flexible substrate and the lug boss, when
User presses after the fingerprint detection element moves down the flexible substrate, by supporting for the lug boss, makes described the
Pass through the switching means into conduction between two leads and the third lead.
Preferably, the switching device include a metal dome, the metal dome be set to the lower section of the flexible substrate and
It is electrically connected to the first opening protrusion, and with the described second electric guide portion, makes when user presses the fingerprint detection element
After the metal dome moves down, the top of the lug boss resists the metal clips, and it is extremely electric with the third to bring it about deformation
Guide portion electrical connection.
Preferably, the metal dome is protruded in cheese to first opening.
Preferably, the boss of support frame as described above is on the metal dome center line of the cheese.
Preferably, when user does not press the fingerprint detection element, the lug boss is in contact with the metal dome.
Preferably, the outer surface of the metal dome is covered with insulating layer.
Preferably, the switching device further includes one first hard contact, and first hard contact is set to described scratch
Property substrate lower surface, and be electrically connected with the third electricity guide portion, the metal dome passes through first gold medal after deformation occurs
Belong to contact to be electrically connected with the third electricity guide portion.
Preferably, the third electricity guide portion is third metal lead wire, and the flexible substrate is equipped with a via hole, described the
One end of three metal lead wires passes through the via hole and is electrically connected with first hard contact.
Preferably, the switching device further includes a becket, and the becket is set to the metal dome and scratches with described
Between property substrate.
Preferably, the third electricity guide portion is third metal lead wire, and the third metal lead wire is set to the flexibility
It is electrically connected on the lower surface of substrate and with first hard contact;The switching device further includes a becket, the metal
Ring is set between the metal dome and the flexible substrate, and the becket has avoid the third metal lead wire second
Notch.
Preferably, the metal dome is equipped with first notch for corresponding to the third metal lead wire.
Preferably, the described second electric guide portion is the second metal lead wire, and second metal lead wire passes through the becket
It is electrically connected with the metal dome.
Preferably, the becket is circular rings or Q-RING;First hard contact is round or rectangular.
Preferably, the thickness of first hard contact is greater than or equal to the thickness of the becket.
Preferably, the switching device includes a metal clips, and one end of the metal clips is fixed and with described second
Electric guide portion electrical connection, the other end of the metal clips is the elastic extension arm moved up and down, when user presses the finger
When line detecting element moves down the flexible substrate, the elastic extension arm is supported at the top of the lug boss, makes the elasticity
Adjutage is moved to be electrically connected with the third electricity guide portion.
Preferably, the described second electric guide portion is second pin, and the third electricity guide portion is for prolonging with the elasticity
The third conducting bridge and third pin of semi-girder electrical connection.
Preferably, the switching device includes a metal clips, and one end of the metal clips is fixed, the metal clips
The other end be the elastic extension arm moved up and down, move down the flexible substrate when user presses the fingerprint detection element
When, the elastic extension arm is supported at the top of the lug boss, makes that the elastic extension arm is moved to and second electricity guides
Portion and third electricity guide portion electrical connection.
Preferably, the described second electric guide portion is the second conducting bridge and second for being electrically connected with the elastic extension arm
Pin, the third electricity guide portion are the third conducting bridge and third pin for being electrically connected with the elastic extension arm.
Preferably, the switching device includes: the second hard contact, is set in the flexible substrate, and at least partly
Protrude from the lower surface of the flexible substrate, second hard contact and the second lead electricity as the described second electric guide portion
Connection;Third hard contact is set in the flexible substrate, and at least partly protrudes from the lower surface of the flexible substrate,
The third hard contact is electrically connected with the third lead as the third electricity guide portion;4th hard contact is set to institute
The top of lug boss is stated, and is correspondingly located at the lower section of second hard contact and third hard contact;When user presses
After pressing the fingerprint detection element to move down the flexible substrate, second hard contact and the third hard contact are moved down
To being electrically connected with the 4th hard contact, second lead is connected with the third lead.
Preferably, the described first electric guide portion, the second electric guide portion and the third electricity guide portion also connect jointly
One processing element.
Preferably, the shell also has a corresponding upper cover being located above the pedestal, and the upper cover covers at described
Above fingerprint detection element and there is one second opening, the fingerprint detection element is revealed in second opening.
Preferably, further include a protective layer, at least cover the surface for being revealed in the fingerprint detection element of second opening,
The protective layer is that class bores carbon plated film or high anti-fingerprint AF film thoroughly.
According to another aspect of the present invention, a kind of electronic device with fingerprint recognition detection function is also provided, including
The fingerprint recognition component.
Disclosed technical solution according to the present invention can realize fingerprint simultaneously on the electronic devices such as such as portable terminal
Identification and two functions of switch control, extend the practical application of fingerprint recognition.
Detailed description of the invention
Its example embodiment is described in detail by referring to accompanying drawing, above and other feature of the invention and advantage will become
It is more obvious.
Fig. 1 is the structural schematic diagram of fingerprint recognizer component in the first embodiment of the present invention;
Fig. 2 is the structural schematic diagram that the fingerprint recognition component after fingerprint detection element is pressed in Fig. 1;
Fig. 3 a is the structure enlargement diagram of the switching device of fingerprint recognizer component in the first embodiment of the present invention;
Fig. 3 b is the schematic top plan view of the switching device of fingerprint recognizer component in the first embodiment of the present invention;
Fig. 4 is the bottom view of the switching device of fingerprint recognizer component in the second embodiment of the present invention;
Fig. 5 is that the switching device of fingerprint recognizer component in the second embodiment of the present invention removes the bottom view after metal dome;
Fig. 6 is the bottom view of the metal dome of the switching device of fingerprint recognizer component in the second embodiment of the present invention;
Fig. 7 is the bottom view in the third embodiment of the present invention under the assembled state of the switching device of fingerprint recognizer component;
Fig. 8 is the bottom view in the third embodiment of the present invention under the decomposing state of the switching device of fingerprint recognizer component;
Fig. 9 is the bottom view of the switching device of fingerprint recognizer component in the fourth embodiment of the present invention;
Figure 10 is the structural schematic diagram of fingerprint recognizer component in the fifth embodiment of the present invention;And
Figure 11 is the electronic device in the embodiment of the present invention for fingerprint recognition detection.
Specific embodiment
Example embodiment is described more fully with reference to the drawings.However, example embodiment can be with a variety of shapes
Formula is implemented, and is not understood as limited to embodiment set forth herein;On the contrary, thesing embodiments are provided so that the present invention will
Fully and completely, and by the design of example embodiment comprehensively it is communicated to those skilled in the art.It is identical attached in figure
Icon note indicates same or similar structure, thus will omit repetition thereof.
Described feature, structure or characteristic can be incorporated in one or more embodiments in any suitable manner
In.In the following description, many details are provided to provide and fully understand to embodiments of the present invention.However,
One of ordinary skill in the art would recognize that without one or more in the specific detail, or using other methods, group
Member, material etc. can also practice technical solution of the present invention.In some cases, it is not shown in detail or describes known features, material
Material operates to avoid the fuzzy present invention.
Attached drawing of the invention is only used for signal relative positional relationship and electrical connection, and the thickness at certain positions, which uses, to be overstated
For the plotting mode shown in order to understand, the thickness in attached drawing does not represent the proportionate relationship of practical thickness.
Embodiment one
As shown in Figure 1 and Figure 2, fingerprint recognition component of the invention includes shell 1, flexible substrate 2, fingerprint detection element
3, as the first lead 4 of the first electric guide portion, switching device, as the second lead 6 of the second electric guide portion, as third electricity
Third lead 7, support frame 8 and the protective layer 9 of guide portion.
Shell 1 has a upper cover 11 and pedestal 12 corresponding with upper cover 11.Wherein, upper cover 11 has one second opening
111, which has one first opening 121.
Flexible substrate 2 is set to the top of pedestal 12, and the opposite pedestal 12 of energy moves up and down, and part is placed in shell 1
In, positioned at the top of pedestal 12.Flexible substrate 2 in the present embodiment is flexible circuit board or polyethylene terephthalate
(PET, Polyethylene terephthalate), but not limited to this.
Fingerprint detection element 3 is arranged in flexible substrate 2.(do not show in figure for example, flexible substrate 2 is equipped with embossed layer
Out), coining layer surface is formed with groove, and fingerprint detection element 3 is set in the groove of flexible substrate 2.Fingerprint detection element 3 can
It is formed in a manner of through sputter or silk-screen in flexible substrate 2.Fingerprint detection element 3 is also placed in shell 1, is located at upper
The lower section of lid 11, and be revealed at the second opening 111.
First lead 4 is set in flexible substrate 2, and one end connects fingerprint detection element 3, and the other end connects a processing elements
Part.The processing element can be a fingerprint recognition chip, and but not limited to this.First lead 4 is by the signal of fingerprint detection element 3
It is transmitted to the processing element.First lead 4 can also be formed in flexible substrate 2 by way of sputter or silk-screen.
Support frame 8 is arranged at intervals at the lower section of pedestal 12, protrudes with one to the first opening 121 of flexible substrate 2
Lug boss 81.
The switching device is set between flexible substrate 2 and lug boss 81.In this embodiment, the switching device is
Metal dome 51 as shown in Figure 1 and Figure 2.Metal dome 51 is projectedly set under flexible substrate 2 towards the first opening 121
Side.Such as the middle part of metal dome 51, to 121 protrusion of the first opening, edge is connected with the bottom surface of flexible substrate 2.Metal dome 51
It can be round metal dome, ellipse (oval) metal dome, triangle metal dome or cross metal dome, can also be single layer structure
, double-layer structure or metal dome with salient point, be not limited to structure shown in the drawings.Preferably, metal dome 51 is convex in cheese
Out.The outer surface of metal dome 51 is also provided with an insulating layer 54.
Second lead 6 is set in flexible substrate 2, and one end connects the processing element, and the other end can be with metal dome 51
Edge on either end electrical connection.Second lead 6 can also be formed in flexible substrate 2 by way of sputter or silk-screen
In.
Third lead 7 is set in flexible substrate 2, and one end connects the processing element, and the other end is exposed to (such as downwards
Extend) bottom surface of flexible substrate 2, and be located in the edge area defined of metal dome 51.Third lead 7 can also pass through
The mode of sputter or silk-screen is formed in flexible substrate 2.
Further, in conjunction with above structure, in the original state that fingerprint detection element 3 is not pressed, lug boss 81 can
To be in contact with metal dome 51, the fingerprint recognition detecting element 3 being positioned above, flexible substrate 2 and metal dome 51 are supported;When
So lug boss 81 can not also be in contact with metal dome 51 in the initial state, by other elastic element support bases 12, fingerprint
Recognition detection element 3, flexible substrate 2 etc..
It is convex when user presses fingerprint detection element 3 and moves down flexible substrate 2 and metal dome connected to it 51
Rise portion 81 top resist metal dome 51, bring it about deformation, when the middle part of metal clips 51 it is concave up to third lead 7
When another end in contact forms electrical connection (as shown in Figure 2), the circuit formation between fingerprint detection element 3 and the processing element is led
It is logical.At this point, fingerprint detection element 3 starts to identify the fingerprint image of user's finger, and then identification information is sent to place
Element is managed, with this for the registration or certification to user.
Protective layer 9 is set on fingerprint detection element 3, and size is roughly the same with the second opening 111, and position and second
It is open 111 corresponding, covering is revealed in the surface of the fingerprint detection element 3 at the second opening 111, adequately protects and is revealed in second
The fingerprint detection element 3 easy to wear being open at 111.The thickness of protective layer 9 can be 50um, and but not limited to this.Protective layer 9
Material be that class bores carbon plated film (Diamond Like Carbon Coating) or high anti-fingerprint AF film etc. thoroughly, but not as
Limit.It is understood that protective layer 3 may be set to be the entire upper surface of covering fingerprint detection element 3, equally reach guarantor
Finger shield line detecting element 3, the effect for avoiding it from wearing.
Further, above-mentioned fingerprint detection element 3 can be any one fingerprint detection element, such as active condenser type
Fingerprint detection element, passive capacitance type fingerprint detecting element, pressure sensitive fingerprint detection element or swiping formula fingerprint detection element etc..
For example, 3 at least part of fingerprint detection element is by conductive grid when fingerprint detection element 3 is swiping formula fingerprint detection element
It constitutes.Fingerprint detection element 3 includes multiple driving electrodes and induction electrode.A plurality of driving electrodes are arranged side by side and are spaced each other
It opens, a plurality of driving electrodes are opposite to form multiple detector gaps at interval with induction electrode respectively.A plurality of driving electrodes are each other
In parallel, and it is connected to one drive circuit.It is arranged on induction electrode perpendicular to driving electrodes.Each driving electrodes pass through detection
Gap is separated with induction electrode.
When user moves on the direction perpendicular to induction electrode or brandishes finger, driving circuit is with driving signal sequence
Motivate driving electrodes in ground.When the ridge peak of fingerprint and ridge paddy skim over detector gap, it is applied to the driving signal of driving electrodes
Induction electrode is capacitively coupled to according to the capacitor of single detector gap.Capacitor is according to the ridge of the fingerprint for skimming over detector gap
Line peak and ridge paddy and change.Capacitively coupled driving signal is coupled to induction electrode, and by a sensor circuit detect Lai
A line fingerprint image is provided.Complete fingerprint image can be formed by combining multi-slice fingerprint figure.
As shown in Figure 3a and Figure 3b shows, it illustrates the switching devices of fingerprint recognizer component in the first embodiment of the present invention
Structure enlargement diagram.In a preferred embodiment of the invention, the switching device further includes one first hard contact 52.First
Hard contact 52 is set to the lower surface of flexible substrate 2, and is electrically connected with third lead 7, and metal dome 51 is after deformation occurs with the
One hard contact 52 is in contact, and then is electrically connected by the first hard contact 52 with third lead 7.The cross of first hard contact 52
Section can be any one of round or square.
In the first embodiment of the invention, the arrangement of third lead is: a via hole is provided preferably in flexible substrate 2
21, third lead 7 is set to the inside of flexible substrate 2, and one end passes through via hole 21 and is electrically connected with the first hard contact 52.
The switching device further includes a becket 53.Becket 53 is set between metal clips 51 and flexible substrate 2,
Second lead 6 is electrically connected by becket 53 with metal clips 51.In this embodiment, becket 53 is a circular rings, and golden
The thickness for belonging to ring 53 is less than or equal to the thickness of the first hard contact 52.
Embodiment two
As shown in Figures 4 to 6, Fig. 4 shows the switching device of fingerprint recognizer component in the second embodiment of the present invention
Bottom view;Fig. 5 show fingerprint recognizer component in the second embodiment of the present invention switching device removal metal dome after look up
Figure;Fig. 6 shows the bottom view of the metal dome of the switching device of fingerprint recognizer component in the second embodiment of the present invention.With it is above-mentioned
Unlike first embodiment shown in Fig. 1, the structure of the arrangement and becket of third lead, metal dome.Specifically,
Third lead 7 is set to the lower surface of flexible substrate 2 and is electrically connected with the first hard contact 52.It is corresponding that metal dome 51 ' is equipped with one
In the first notch 511 of the third lead.Becket 53 ' is a not closed Q-RING (being also possible to circular rings), is set
There is the second notch 531 of an evacuation third lead 7, the second notch 531 is corresponding with the position of the first notch 511.
Embodiment three
As shown in Figure 7 and Figure 8, which respectively show the switching devices of fingerprint recognizer component in the third embodiment of the present invention
Combination and decomposing state under bottom view.Unlike above-mentioned first embodiment: the switching device includes a metal elastic
Piece 58, one end of the metal clips 58 fix (such as being fixed on pedestal) and are electrically connected (figure with the described second electric guide portion
Show summary), the other end of the metal clips 58 is the elastic extension arm 581 moved up and down, when user presses the fingerprint inspection
When surveying element 3 moves down the pedestal 12, the top of the lug boss 81 resists the elastic extension arm 581, makes the elasticity
Adjutage 581 is moved to be electrically connected with the third electricity guide portion.Wherein, the described second electric guide portion is second pin 61, institute
Stating third electricity guide portion is the third conducting bridge 71 and third pin 72 for being electrically connected with the elastic extension arm.
Example IV
As shown in figure 9, it illustrates the bottom views of the switching device of fingerprint recognizer component in the fourth embodiment of the present invention.
Unlike above-mentioned first embodiment: the switching device includes a metal clips 58 ', one end of the metal clips 58 '
Fixed (such as being fixed on pedestal), the other end of the metal clips 58 ' is the elastic extension arm 581 ' moved up and down, when making
When user's pressing fingerprint detection element 3 moves down the flexible substrate 2, the top of the lug boss 81 resists the elasticity
Adjutage 581 ' is moved to the elastic extension arm 581 ' and is electrically connected with the described second electric guide portion and the third electricity guide portion
It connects.Wherein, the described second electric guide portion is the second conducting bridge 61 ' and second for being electrically connected with the elastic extension arm 581 '
Pin 62 ', the third electricity guide portion are the third conducting bridge 71 ' and third pin for being electrically connected with the elastic extension arm
72 ' (before elastic extension arm 581 ' is non-depressed, not being electrically connected between the second conducting bridge 61 ' and third conducting bridge 71 ').
Embodiment five
As shown in Figure 10, it illustrates the structural schematic diagrams of fingerprint recognizer component in the fifth embodiment of the present invention.With it is upper
It states unlike first embodiment, the switching device includes the second hard contact 55, third hard contact 56 and the 4th gold medal
Belong to contact 57.More specifically, the second hard contact 55 is set in flexible substrate 2 and part protrudes from the following table of flexible substrate 2
Face is electrically connected with the second lead 6.Third hard contact 56 is set in flexible substrate 2 and part protrudes from flexible substrate 2
Lower surface is electrically connected with third lead 7.4th hard contact 57 is set to the top of lug boss 81, and is correspondingly located at
The lower section of 56 contact of two hard contacts 55 and third metal.Make the flexible substrate 2 when user presses fingerprint detection element 3
After moving down, the second hard contact 55 and third hard contact 56 are displaced downwardly to and are electrically connected with the 4th hard contact 57, make the second lead 6
It is connected with third lead 7, and then the circuit between fingerprint detection element 3 and the processing element is made to form conducting.At this point, fingerprint is examined
It surveys element 3 to start to identify the fingerprint image of user's finger, and then identification information is sent to processing element, be used for this
Registration or certification to user.
Further, fingerprint recognition component of the invention can be set in an electronic device (such as mobile phone etc.).Its
In, which has a non-display area, which is equipped with an aperture, and fingerprint recognition component is set to this and opens
Kong Zhong, and its position is corresponding with key (such as the HOME key of mobile phone etc.) of the electronic device.
With reference to Figure 11, according to another aspect of the present invention, a kind of electronic device for fingerprint recognition detection is also provided
(such as the portable terminals such as mobile phone, ipad or entrance guard device), including above-mentioned fingerprint recognition component.The fingerprint recognition component is logical
The components such as flexible substrate 2 and substrate, mainboard, touch element in the electronic device are crossed to be connected.Such as: the substrate can be
The transparent cover plate of touch display screen, the fingerprint recognition component are set to the non-display area S of touch display screen.Touch element setting
In the display area of the transparent cover plate.The touch element can be capacitance plate, touch screens, piezoelectric type touch screen, infrared-type touching
One of screen, surface acoustic wave touch screen etc. are touched, but not limited to this.Touch element can pass through the techniques shape such as etching, lamination
At in (but not limited to this) in flexible substrate 2.The mainboard is separately connected the touch element and flexible substrate 2.The mainboard can be with
Flexible substrate 2 is connected by Anisotropically conductive material (ACF).Certainly, those skilled in the art can be according to the reality of electronic device
Needs in structure and connection relationship are adjusted the fingerprint recognition component is corresponding with the progress of the connection type of the electronic device
It is whole.It is understood that can also realize after the fingerprint recognition component is connect with electronic device while control the electronic device
Mainboard circuit connection, used using the switch as the electronic device.
In summary, fingerprint recognition component of the invention can be realized simultaneously on the electronic devices such as such as portable terminal
Fingerprint recognition and two functions of switch control, extend the practical application of fingerprint recognition.
It is particularly shown and described exemplary embodiments of the present invention above.It should be understood that the present invention is not limited to institute
Disclosed embodiment, on the contrary, it is intended to cover comprising various modifications within the scope of the appended claims and equivalent set
It changes.