CN105447486B - A kind of fingerprint identification device and the electronic equipment with the fingerprint identification device - Google Patents
A kind of fingerprint identification device and the electronic equipment with the fingerprint identification device Download PDFInfo
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- CN105447486B CN105447486B CN201610031175.8A CN201610031175A CN105447486B CN 105447486 B CN105447486 B CN 105447486B CN 201610031175 A CN201610031175 A CN 201610031175A CN 105447486 B CN105447486 B CN 105447486B
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- key
- identification device
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- guard member
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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
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Abstract
The present invention relates to a kind of fingerprint identification device with concealed guard member and with the electronic equipment of the fingerprint identification device.Fingerprint identification device, including a key；One fingerprint sensor is located at the lower part of the key vertical stack structure design direction；An and cover board; key hole including the receiving key and the lower part fingerprint sensor positioned at the key; the guard member for being set to the cover board lower part or the key hole side wall with one; the guard member hides the lower section for being set to the cover board upper surface, and the guard member is looped around around the fingerprint sensor to shield interference of the peripheral noise signal to the fingerprint sensor.Electronic equipment with above-mentioned fingerprint identification device, including a shell, the cover board are embedded in the shell upper plate；And a display component, the display component are display module or touch-control display module, the fingerprint sensor is located at except the display component imaging region.
Description
[technical field]
The present invention relates to fingerprint identification technology field, in particular to a kind of fingerprint identification device with concealed guard member
And the electronic equipment with the fingerprint identification device.
[background technique]
Fingerprint sensing technology has been widely used and has been frequently used for providing to sensitive electronic equipment and/or sensitive data
Secure access.In general, capacitance type fingerprint identification mould group can be used for by measuring across multiple capacitive sensor elements
Capacitor determine fingerprint image.
Key applied to the capacitance type fingerprint identification device Chang Huiyu electronic equipment in electronic equipment is combined, and key
It is the position that user often touches, so the use that installation capacitance type fingerprint identification device is best suitable for user herein is practised
It is used, it can also be relatively easy to and easily collect the finger print data of user.For capacitance type fingerprint identification device, be by
By the distance between finger and capacitance sensing array, so that the capacitance being derived from distinguishes the wrinkle ridge of finger and the line of line paddy
Reason.The finger tip of finger can be easier to residual electrostatic when touching the capacitance type fingerprint identification device at key, and the electrostatic can be done
Disturb acquisition and identification of the capacitance sensing array to fingerprint texture；Similar, electronic equipment internal has complicated electric line of walking, special
It can also not focus mostly at key, walk the generation noise signal that electric line can be more when there is electric current to flow through, can also interfere with electricity
Hold acquisition and identification of the sensing array to fingerprint texture.
For the institute's evil kept away, additional mask component is especially understood at the key of electronic equipment, citing person is a kind of guard member, is protected
Guard is arranged near key and it is made to be surrounded on capacitance sensing array to completely cut off peripheral noise, while doing grounding for finger tip
Electrostatic discharge avoid acquisition and identification of the interference capacitors sensing array to fingerprint texture.
The guard member of the citing is especially tailored element for one, often has following problem and is difficult to overcome: (one) guard member
When being assembled with the periphery of key, electronic equipment, capacitance sensing array can because of dimensional problem caused by tolerance fit be difficult to hold, drop
The assembling precision of low equipment；(2) position of guard member is more special, need to be close to key and place, and guard member expose to by
Key periphery, since finger surface is prominent, the highest face of key will can just form concave type lower than the cover board highest face of electronic equipment
Structure accommodates finger, and thus the guard member around key will flush the cover board of electronic equipment, and be higher than key and key it
Under fingerprint recognition mould group height, be finally exposed to guard member around key, very unsightly；(3) guard member exposes to
When around key, the residual soil and grease stain being infected on finger are easier to enter guard member and fingerprint identification device or electronic equipment
Between gap in, not only influence aesthetics, can also reduce indirectly the sensitivity of induction, and cause guard member oxidation corrosion or
Damage；(4) production of guard member need to individually be opened production, and the electricity with fingerprint identification device is assembled using outsourcing guard member
Sub- equipment therefore can improve product cost, be unfavorable for the popularization and use of fingerprint identification function in the electronic device.
Summarize drawback as described above (i.e. assembling tolerance fit problem, guard member it is exposed with damage problem, take off bring in the past
Corresponding cost problem), a kind of more excellent fingerprint identification device and the electronic equipment with the fingerprint identification device are for institute
Ji.
[summary of the invention]
For many defects for overcoming existing fingerprint identification device, the present invention provides a kind of fingers with concealed guard member
Line identification device and electronic equipment with the fingerprint identification device.
The scheme that the present invention solves technical problem is to provide a kind of fingerprint identification device, including a key；One fingerprint sensing
Device is located at the lower part of the key vertical stack structure design direction；And a cover board, including the receiving key and it is located at institute
State the key hole of the lower part fingerprint sensor of key and guarantor that one is set to the cover board lower part and is contained in the key hole
Guard, the guard member hides the lower section for being set to the cover board upper surface, and the fingerprint sensor and the guard member are equal
Positioned at the lower section of the vertical stack structure of the key, the guard member is looped around around the fingerprint sensor to shield periphery
Interference of the noise signal to the fingerprint sensor, the fingerprint identification device further comprise a supporting element, and the fingerprint passes
Sensor and the guard member are carried on the supporting element.
Preferably, the guard member is an electrostatic protection circle and ground connection is connected.
Preferably, the fingerprint sensor and the supporting element are conductively connected.
Preferably, the key includes a hardening coat and an ink layer, and the hardening coat and the ink layer are located at
In different vertical stack height, the ink layer is opaque.
Preferably, the fingerprint sensor starts finger print identification function in a manner of scanning wake-up.
The present invention also provides a kind of electronic equipment with above-mentioned fingerprint identification device, including a shell, the cover board is embedding
Enter plate on the housing；And a display component, the display component are display module or touch-control display module, the fingerprint
Sensor is located at except the display component imaging region.
Compared with prior art, fingerprint identification device provided by the invention is by guard member (silver slurry layer, sputtered layer or metal
Ring) it is hidden under cover board upper surface and is configured, it specifically can be set inside the key hole of cover board lower part or cover board,
Also or the lower part of key, the upper surface of cover board is made to be easier to the effect for keeping flushing and reaching flat appearance with the upper surface of key
Fruit, and guard member will not expose to the upper surface of cover board, can provide preferable aesthetics.
It can substantially be kept away since guard member system is hidden in the lower part of cover board when finger operates fingerprint identification device
It is sensitive when exempting from grease stain on finger or dirt is infected in the gap between guard member and key, and then reducing induction indirectly
Degree, and cause the oxidation corrosion or damage of guard member.
Fingerprint identification device includes a cover board with electrostatic screen function, by such cover board and fingerprint sensor and branch
Without the problem of considering further that fit tolerance when support member assembles to form fingerprint identification device, the cooperation accuracy of assembling and simple is improved
Degree.Meanwhile electrostatic screen function is realized by the way that guard member is arranged in the lower part of cover board or key hole sidewall locations, these techniques
It is synchronously completed in cover board production, with the cover board of a combination thereof formula come mould group structure when being matched with other assemblies, in addition to cover board
Part can be adjusted flexibly according to the needs of position, without individually considering the size requirement of guard member.Furthermore guard member is in cover board system
As when synchronously complete, manufacture craft merges among the production process of cover board, saves and electrostatic screen is fabricated separately
Multiple processing steps of building blocks of function, save Production Time and cost of manufacture.
Also, the printing pattern layer with specific function can be printed in guard member of the invention, has both it as above just
The text citing beauty and publicity special efficacy.
Guard member and fingerprint sensor are more particularly arranged under key by the fingerprint identification device of fourth embodiment,
So that guard member is not only exposed to lid surface, due to being provided with ink layer on key lamination, guard member can also be made to be in
Not visible state, overall aesthetics is more preferably.In this structure, guard member is looped around around entire fingerprint sensor, and conducting connects
Ground setting makes shielding and electrostatic exclude better effect.
[Detailed description of the invention]
Figure 1A is the exploded perspective structural schematic diagram of first embodiment of the invention fingerprint identification device.
Figure 1B is the exploded perspective structural schematic diagram of another structure of first embodiment of the invention fingerprint identification device.
Fig. 2A is the schematic diagram of the section structure of first embodiment of the invention fingerprint identification device shown in Figure 1A.
Fig. 2 B is the schematic diagram of the section structure of the cover board of first embodiment of the invention fingerprint identification device.
Fig. 3 is the schematic diagram of the section structure of second embodiment of the invention fingerprint identification device.
Fig. 4 A is the schematic diagram of the section structure of third embodiment of the invention fingerprint identification device.
Fig. 4 B is a kind of deformation the schematic diagram of the section structure of third embodiment of the invention fingerprint identification device.
Fig. 5 is the schematic diagram of the section structure of fourth embodiment of the invention fingerprint identification device.
Fig. 6 is the stereoscopic schematic diagram for the electronic equipment that fifth embodiment of the invention has above-mentioned fingerprint identification device.
[specific embodiment]
In order to make the purpose of the present invention, technical solution and advantage are more clearly understood, below in conjunction with attached drawing and embodiment,
The present invention will be described in further detail.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention,
It is not intended to limit the present invention.
Figure 1A is please referred to, the present invention provides a kind of fingerprint identification device 10 that can be applied to electronic equipment, can apply
But be not limited to smart phone, tablet computer, media player, PC, mobile phone, mobile phone, microtelephone and other
Portable electronic device or running gear.Fingerprint identification device 10 includes a cover board 103 and one is embedded at key on cover board 103
101, the fingerprint sensor 105 of a supporting element 107 and a carrying thereon.Fingerprint sensor 105 is located at 101 vertical stack of key
The lower section of structure design direction, so that fingerprint identification device 10 executes fingerprint in user's finger manipulation key 101
Acquisition and identification.
In operating mechanism, fingerprint identification device 10 selectively wakes up starting finger print identification function with scanning, and fingerprint passes
Sensor 105 can keep low frequency long period persistently scans the information for whether having finger touch on key 101, if finger is touched or leaned on
Nearly key 101 then changes scan frequency and is switched to high frequency short cycle information in fingerprint acquisition mode, executes the acquisition to fingerprint
Or identification.After finger is far from key 101, then modulation frequency is restored to the macrocyclic hand of low frequency to fingerprint sensor 105 again
Refer to touch detection mode, select this fingerprint identification device that can save one and start switch (as shown in Figure 1A), reduces fingerprint and know
The cost of other mould group, can also make product be easier to realize it is lightening.
Figure 1B is please referred to, as a kind of deformation, fingerprint identification device 10 ' starts switch 109 ' (such as push type touchings including one
Hair switch), the lower section for the vertical stack structure design direction that 109 ' are located at supporting element 107 ' is started switch, in operating mechanism,
After finger touch key-press 101 ', touches fingerprint identification device 10 ' and generate deformation on vertical stack structure design direction, touch
It sends out this and starts switch acquisition or identification that 109 ' conducting fingerprint Identification sensors 105 ' start fingerprint, be one when starting switch 109 '
Flexibility can resetting structure when, can also give finger one tactile feedback signal.
The invention is characterized in that using the fingerprint identification device with concealed guard member and there is the fingerprint identification device
Electronic equipment；Also therefore, the operating mechanism of fingerprint Identification sensor is selected and is not limited.Fingerprint identification device 10 and with
Under fingerprint sensor in the other embodiments can choose above-mentioned scanning and wake up starting finger print identification function, or using opening
Dynamic switch 109 ' starts finger print identification function.But for the laminated thickness and cost consideration of product, it is preferred to use scanning wakes up and opens
The structure of dynamic finger print identification function, and be illustrated below also will mainly be released with the structure work for scanning wake-up starting finger print identification function
Example.
It will first illustrate first embodiment of the invention fingerprint identification device 10 (ginseng Figure 1A, 2A, 2B) below, please refer to Fig. 2A,
The best citing person of key 101 is the function button of electronic equipment, is herein the frequent touch location of finger 50, most convenient for finger
The acquisition process of line, such as the function button of the existing mobile phone for carrying fingerprint identification device 10 are such.
Key 101 is selected by transparent or semitransparent glass, sapphire, aluminium oxide, plastic cement, resin and its similar material system
It forms；Selectively, key 101 also can directly be formed that (including hardening coat and ink coating is compound by composite coating layer
Coating layer, hardening coat and ink layer are located in different vertical stack height).
It note that in the design of key 101 that non-composite coating layer is directly formed, it can be in its vertical stack structure design side
To any stack height in inside at or bottom be coated with an ink layer 1011, ink layer 1011 is printable or is vapor-deposited in key
At 101 position, otherwise transparent or translucent key 101 are become opaque, therefore 101 vertical stack structure of key
The component of the bottom of design direction will not be visual by user.The setting position of ink layer 1011 can adjust according to need to be set to
About 101 either side of key and do not limited to.
Cover board 103 can be assembled on the glass cover-plate of electronic equipment, on Trackpad, in input mould group, the key of keyboard
On the shell of upper, input unit or output device, it is such on the display screen of touch etc., and 103 lotus root of cover board is connected to institute
On the frame for stating any component.Cover board 103 can be made of glass, plastic cement and its similar material, can be through radium-shine cutting or CNC
Cutting cooperation polishing technology is to be precisely controlled its size.As shown in Figure 2 A, the bottom of cover board 103 is coated with one layer of decorative layer
1032, the component that the decorative layer 1032 cover 103 bottom institute structure of cover board is set is so that its person of being not used is visual.
Cover board 103 includes a key hole 1031 (A refering to fig. 1), is placed in cover board 103 and corresponds to the position that key 101 is distributed
Set place.Key hole 1031 is the through-hole of the shapes such as a perforative round, oval, rectangular, irregular polygon.Key 101 is embedding
Enter in the key hole 1031 and positioned, the top surface of key 101 keeps flushing, protrude with the upper surface of cover board 103
Or recess, and be not limited.Also that is, as deformation, key 101 can also be in 1031 convex of key hole on cover board 103
Surface and design, deep in key hole 1031 recessed can also be designed under 103 upper surface of cover board.
Supporting element 107 can be the semiconductor board comprising a silicon materials, a pcb board, a flexible circuit board, a soft or hard combination
Plate or comprising at least one of aforementioned composite support fagging, is not limited to, is loaded on the supporting element in 105 structure of fingerprint sensor
After on 107, fingerprint sensor 105 and supporting element 107 can be conductively connected by bonding wire or PIN foot, connect bonding wire or PIN
After foot, it can further fill curable insulating materials (such as epoxy resin plastic material or resin) and bonding pad and fingerprint are passed
Sensor 105 is packaged processing, the fingerprint sensor 105 and bonding wire or PIN foot that packaging protection is coated by an insulating material；So, preceding
A kind of selection that revealed resinous plastic material is only the encapsulation in the present embodiment is stated, office is not subject to encapsulation technology selection
Limit.
Cover board 103 includes the key hole 1031 of a receiving key 101 and the lower part fingerprint sensor 105 positioned at key 101,
The guard member 1033 for being set to 1031 side wall of 103 lower part of cover board or key hole with one, guard member 1033, which is hidden, is set to cover board 103
The lower section of upper surface, guard member 1033 are looped around around fingerprint sensor 105 to shield peripheral noise signal to fingerprint sensor
105 interference.In production, guard member 1033 can pass through the processing methods such as printing, coating, plating, sputter, vapor deposition or assembling
A kind of key hole 1031 for being fixed on cover board 103 side wall on；Silver slurry layer, quoit or sputtered layer are formed (with sputter
Processing procedure is formed by conductive metal layer) etc..
Specifically, 1031 surrounding of key hole for being placed in 103 lower surface of cover board coats a silver slurry layer 1033, the silver slurry layer 1033
Thickness to be maintained at 0.1-3mm not equal to be enough to be formed the lamination with metallic shield function.It, can also be with applying implenent as deformation
There are the suchlike metal liquid phase such as copper, aluminium, nano silver of similar functions or semi-solid phase material.When specific production, after forming
Cover board 103 on, using continuous coating or other existing coating process key hole 1031 lateral wall circumference and/or bottom surface
After coating silver paste solution, it is formed by curing the silver slurry layer 1033 of 1031 side wall of a surrounding key hole, to the finger in key hole 1031
Line sensor 105 constructs closed shielding space, and external noise interference is isolated.The thickness of the silver slurry layer 1033 can be with decoration
The thickness of layer 1032 is suitable, so that the lower surface of cover board 103 keeps flushing, can first be coated with silver paste in cover board 103 in production
Bottom surface is formed by curing after the silver slurry layer 1033 of shielding protection effect, comparable in silk-screen brushing and 1033 thickness of silver slurry layer
Ornament materials forms the decorative layer 1032 that design is flushed with silver slurry layer 1033, lower part decorative layer 1032 of the user to cover board 103
The component in region is not visible, but visual to silver slurry layer 1032, can be by visual silver paste in user's operation button 101
It is fingerprint identification region that layer 1032, which prompts where,.
It is with conductive property by the silver slurry layer 1033 of metal material, the remaining electric signal of 50 finger tip of finger can be led
It is excluded with connecting, further avoids influence of the residual electrostatic to fingerprint sensor 105, the mode of the ground connection of conducting can be
Silver slurry layer 1033 is directly electrically connected to the ground pin of supporting element 107, or is electrically connected to the IC earthing contact of electronic equipment,
Perhaps it is electrically connected to the ground terminal of circuit main board also or is electrically connected on the frame ground end of electronic equipment.When finger 50 refers to
It can be entered by the gap of key hole 1031 in 105 region of fingerprint sensor when sharp remaining static discharge, in the original of electricity
It is found that remaining electrostatic can walk shortest path in reason, due to being equipped with metal inside the key hole 1031 of 103 lower surface of cover board
Silver slurry layer 1033 is the encapsulation of nonmetal object relative to 105 surface of fingerprint sensor, and residual electrostatic can be directly by the silver paste of metal
Layer 1033 guides and goes out, without being corrupted to fingerprint sensor 105.
It is the structural schematic diagram of 10 cover plate 103 of Fig. 2A fingerprint identification device further referring to Fig. 2 B, it is main herein to be situated between
Continue the guard member 1033 of cover board 103 and the setting of 103 bottom of cover board, decorative layer 1032 and is contained in key hole 1031 so omitting
Other components to be more advantageous to the understanding to the following contents.Cover board 103 is a transparent cover plate 103, though silver slurry layer 1033 is coated with
In the bottom surface of cover board 103.As optimization design, design processing can be done on the silver slurry layer 1033 of bottom level and be formed
With beautiful or the functions such as instruction or stealth printing pattern layers 1035.For example, it can be produced in print electronic devices herein
The mark of quotient identifies the manufacturer of product convenient for user；The identifier that can be identified in printing fingerprint herein, informs user herein
For the function button area with fingerprint recognition；It can also be matched with the apparent design of electronic equipment in printing beautiful pattern herein,
The excellent electronic equipment of a whole design is constructed, the inherent subjective value (referring mainly to appearance value) of product is promoted.
The above figure is only reaction entity structure, should not be to illustrate the size relationship for understanding element.For example, printing pattern layer
1035 is very small compared to its thickness for cover board 103, but can do pattern processing thereon to characterize, and diagram is slightly illustrated
Property exaggerates processing, but should not be as limit for the understanding of size.
As deformation, cover board 103 may be arranged as including a becket being fixed in 1031 bottom surface of key hole
1033 (or quoits), becket 1033 and the function and structure of above-mentioned silver slurry layer are equivalent, therefore use the mark of silver slurry layer herein
Note illustrates 1033 specific structure of becket with diagram.
Becket 1033 can be pasted and fixed on around the key hole 1031 of 103 bottom surface of cover board by colloid；Or
It is tightened by attachment, welds, be riveted to around the key hole 1031 of 103 bottom surface of cover board.Due to becket 1033 itself
Both have the function of shielding external signal interference, so need to only connect in bottom to earthed circuit can protect internal fingerprint to pass
Interference of the sensor 105 from 50 electrostatic of outer signals and finger.Since becket 1033 is directly installed on cover board 103, making
When making cover board 103 while the becket 1033 being installed；Therefore an installation is saved when setting up fingerprint identification device 10 of the invention
Step, also without the concern for location tolerance the problem of.
Referring to Fig. 3, the fingerprint recognition of fingerprint identification device 20 and first embodiment that second embodiment of the invention provides
Device 10 is roughly the same, also includes a cover board 203 and one is embedded at key 201 on cover board 203, a supporting element 207, a carrying
Fingerprint sensor 205 thereon.The difference is that a guard member 2033 and decorative layer is arranged in the bottom surface of cover board 203
2032, decorative layer 2032 is coated in the bottom surface of cover board 203, and guard member 2033 is then attached to the bottom of decorative layer 2032 again
On surface, the guard member 2033 can be silver slurry layer, quoit or sputtered layer described in first embodiment (with sputter process
It is formed by conductive metal layer).In production, in order to make the component (including guard member 2033) of 203 bottom surface of cover board not
Visually, one layer of decorative layer 2032 is coated in its bottom surface whole face, then at the bottom surface of decorative layer 2032, key after solidification
The metal ring that the lateral wall circumference installation in hole 2031 is described is formed by curing guard member 2033 at guard member 2033 or brushing silver paste.
In this way, which not only some components of 2032 lower part of decorative layer are not visible, guard member 2033 also becomes not visible state, user
It is only capable of seeing decorative layer 2032, overall aesthetics is more preferably.
Fig. 4 A is please referred to, the fingerprint recognition of fingerprint identification device 30 and first embodiment that third embodiment of the invention provides
Device 10 is roughly the same, also includes a cover board 303 and one is embedded at key 301 on cover board 303, a supporting element 307, a carrying
The bottom surface of fingerprint sensor 305 thereon, cover board 303 coats a decorative layer 3032.The difference is that in cover board
One guard member 3033 is set on the 303 vertical cutting plane of 3031 peripheral side wall of key hole, and the guard member 3033 can be first
Silver slurry layer described in embodiment, quoit or sputtered layer, the height of guard member 3033 is not more than the thickness of cover board 303, and protects
The top surface of guard 3033 is lower than the top surface of cover board 303 and has concealment effect.Similarly, in production, guard member
3033 can be fixed on the key of cover board 303 by one kind of the processing methods such as printing, coating, plating, sputter, vapor deposition or assembling
On the side wall in hole 3031.
Fig. 4 B is please referred to, as a kind of deformation of fingerprint identification device 30 that third embodiment of the invention provides, guard member
3033 ' cross sectional shape may be L shape, and the highest point in the section of vertical direction extension is located at the upper surface with cover board 303 '
Lower part, section fitting and the lower surface of cover board 303 ' of the extension of bottom level direction.It is equal in this way, can have both
The protection effect that the guard member 1033 of one embodiment and the guard member 3033 of 3rd embodiment are integrated.
Referring to Fig. 5, fourth embodiment of the invention provides a fingerprint identification device 40, including a cover board 403 and a coating
Decorative layer 4032 in 403 lower surface of cover board, keeps the lower element of cover board 403 not visible, and one is embedded at the key on cover board 403
401, a supporting element 407, the fingerprint sensor 405 of a carrying thereon.Cover board 403 includes a key hole 4031, is placed in lid
Plate 403 corresponds at the position that key 401 is distributed.Key hole 4031 is one perforative round, oval, rectangular, irregular more
The through-hole of the shapes such as side shape.Key 401 is embedded in the key hole 4031 and is positioned, the top surface of key 401 and lid
The upper surface of plate 403 keeps flushing, protrude or being recessed, and is not limited.
Guard member 4033 of the setting one around the fingerprint sensor 405, guard member 4033 around fingerprint sensor 405
It is encapsulated on supporting element 407 with fingerprint sensor 405.Guard member 4033 and the equal structure of fingerprint sensor 405 are set to key 401
The lower part of vertical stack structure direction, to hide the guard member 4033, so that user can not touch guard member 4033.
Be additionally provided with ink layer 4011 in the bottom surface of key 401 so that user can not only touch even it is not visible be located at press
The guard member 4033 of the lower part of key 401.The conducting of the guard member 4033 ground connection setting, its structure and function and second
The guard member 2033 of embodiment and the guard member 3033 of 3rd embodiment are all the same.
Referring to Fig. 6, fifth embodiment of the invention provide it is a kind of using fingerprint recognition described in above-mentioned first embodiment fill
The electronic equipment 700 set and constructed, the electronic equipment 700 are a portable mobile phone, including a shell 706 and one
A key 701 and one is arranged on cover board 703 and is placed in finger under key 701 for the cover board 703 being embedded on the shell 706
Line sensor 705.
Electronic equipment 700 further includes a display component 702, which can be the display for imaging of developing
Mould group or touch-control display module, fingerprint sensor 705 are located at except 702 imaging region of display component, it is contemplated that user couple
The use habit of mobile phone, preferably, the lower part that fingerprint sensor 705 is set to display component 702 is (hand-held with mobile phone
Relatively upper and lower orientation when use).Particularly, display component 702 is displayed for fingerprint sensor 705 to fingerprint image letter
The acquisition process of breath, so that user can know that its finger in currently collected fingerprint image process, is convenient for user couple
The adjustment of finger placement location.When display component 702 is a touch-control display module, touching signals and the scanning signal for showing signal
705 position of fingerprint sensor can be coupled to, it at this time can be by the touching signals and display signal screen by guard member (not shown)
It covers and it is avoided (to make an uproar the periphery for shielding the guard member interference of information in fingerprint scanning except fingerprint sensor 705
Interference of the sound signal to the fingerprint sensor 705).
The label illustrated with the fingerprint identification device 10 of first embodiment is described into beneficial effects of the present invention below, this
Place is only illustrated with the label of first embodiment diagram in order to the understanding to beneficial effect, not to have described in the numerical limitation
Beneficial effect only shows in the first embodiment.
Compared with prior art, fingerprint identification device 10 provided by the invention by guard member 1033 (silver slurry layer, sputtered layer or
Becket) it is hidden under 103 upper surface of cover board and is configured, it specifically can be set in 103 lower part of cover board or cover board 103
Key hole 1031 inside, also or the lower part of key 103, the upper surface of the upper surface of cover board 103 and key 101 is made to be easier to protect
Hold and flush and achieve the effect that flat appearance, and guard member 1033 will not expose to the upper surface of cover board 103, can provide compared with
Good aesthetics.
Since 1033 system of guard member is hidden in the lower part of cover board 103, when finger 50 operates fingerprint identification device 10,
Grease stain or dirt on finger 50 can be substantially avoided to be infected in the gap between guard member 1033 and key 101, and then
Sensitivity when reducing induction is connect, and causes the oxidation corrosion or damage of guard member 1033.
Fingerprint identification device 10 includes a cover board 103 with electrostatic screen function, and such cover board 103 is passed with fingerprint
Without the problem of considering further that fit tolerance when sensor 105 and the assembling of supporting element 107 form fingerprint identification device 10, assembling is improved
Cooperate accuracy and ease.Meanwhile by the way that guard member 1033 is arranged in the lower part of cover board 103 or 1031 sidewall locations of key hole
Realize electrostatic screen function, these techniques are synchronously completed when cover board 103 makes, with cover board 103 and its of a combination thereof formula
When his component matches, the mould group component in addition to cover board 103 can be adjusted flexibly according to the needs of position, protect without individually considering
The size requirement of guard 1033.Furthermore guard member 1033 is synchronously completed when cover board 103 makes, manufacture craft
Fusion saves multiple processing steps that electrostatic screen building blocks of function is fabricated separately among the production process of cover board 103, saves
Production Time and cost of manufacture.
Also, the printing pattern layer 1035 with specific function can be printed in guard member 1033 of the invention, keeps its simultaneous
Have text the citing as above beauty and publicity special efficacy.
Guard member 4033 and fingerprint sensor 405 are more particularly arranged at by the fingerprint identification device 40 of fourth embodiment
Under key 401,403 surface of cover board will not be exposed to by making guard member 4033 not only, due to being provided with ink on 401 lamination of key
Layer 4011, can also make guard member 4033 be in not visible state, overall aesthetics is more preferably.In this structure, guard member 4033
It is looped around around entire fingerprint sensor 405, and ground connection setting is connected, shielding and electrostatic is made to exclude better effect.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in original of the invention
Made any modification within then, equivalent replacement and improvement etc. should all be comprising within protection scope of the present invention.
Claims (6)
1. a kind of fingerprint identification device characterized by comprising
One key；
One fingerprint sensor is located at the lower part of the key vertical stack structure design direction；And
The key hole and one of one cover board, the lower part fingerprint sensor including the receiving key and positioned at the key is arranged
In the cover board lower part and the guard member that is contained in the key hole, the guard member, which is hidden, is set to the cover board upper surface
Lower section, and the fingerprint sensor and the guard member are respectively positioned on the lower section of the vertical stack structure of the key, the guarantor
Guard is looped around around the fingerprint sensor to shield interference of the peripheral noise signal to the fingerprint sensor；
The fingerprint identification device further comprises a supporting element, and the fingerprint sensor and the guard member are carried on described
On supporting element.
2. fingerprint identification device as described in claim 1, it is characterised in that: the guard member is an electrostatic protection circle and is connected
Ground connection.
3. fingerprint identification device as described in claim 1, it is characterised in that: the fingerprint sensor and the supporting element are conductive
Connection.
4. fingerprint identification device as described in claim 1, it is characterised in that: the key includes a hardening coat and an ink
Layer, the hardening coat and the ink layer are located in different vertical stack height, and the ink layer is opaque.
5. fingerprint identification device as described in claim 1, it is characterised in that: the fingerprint sensor is in a manner of scanning wake-up
To start finger print identification function.
6. a kind of electronic equipment with fingerprint identification device as described in claim 1 characterized by comprising
One shell, the cover board are embedded in the shell upper plate；And
One display component, the display component are display module or touch-control display module, and the fingerprint sensor is located at described
Except display component imaging region.
Priority Applications (1)
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