CN104866147B - Capacitive finger navigation module and manufacturing method thereof - Google Patents
Capacitive finger navigation module and manufacturing method thereof Download PDFInfo
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- CN104866147B CN104866147B CN201410315533.9A CN201410315533A CN104866147B CN 104866147 B CN104866147 B CN 104866147B CN 201410315533 A CN201410315533 A CN 201410315533A CN 104866147 B CN104866147 B CN 104866147B
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- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 238000003825 pressing Methods 0.000 claims abstract description 71
- 238000006073 displacement reaction Methods 0.000 claims abstract description 59
- 230000006698 induction Effects 0.000 claims description 77
- 230000008859 change Effects 0.000 claims description 55
- 230000005611 electricity Effects 0.000 claims description 17
- 238000005452 bending Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 238000004070 electrodeposition Methods 0.000 claims description 7
- 239000013013 elastic material Substances 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 12
- 239000010410 layer Substances 0.000 description 112
- 238000010586 diagram Methods 0.000 description 14
- 230000000875 corresponding effect Effects 0.000 description 9
- 238000009826 distribution Methods 0.000 description 7
- 230000002045 lasting effect Effects 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 239000011229 interlayer Substances 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000013536 elastomeric material Substances 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 239000012811 non-conductive material Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005057 finger movement Effects 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/0338—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of limited linear or angular displacement of an operating part of the device from a neutral position, e.g. isotonic or isometric joysticks
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04102—Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04105—Pressure sensors for measuring the pressure or force exerted on the touch surface without providing the touch position
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
- Y10T29/49155—Manufacturing circuit on or in base
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Push-Button Switches (AREA)
- Position Input By Displaying (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
Abstract
The invention provides a capacitive finger navigation module, which has two modes of pressure detection and finger displacement detection, can detect finger pressing to generate a continuous displacement signal aiming at a cursor in the pressure detection mode, and can detect the displacement of the finger to generate a disposable displacement signal aiming at the cursor in the finger displacement detection mode.
Description
Technical field
The present invention is particularly a kind of that there is pressure detecting and finger displacement to examine on a kind of capacitive finger navigation module
Survey finger navigation module of two kinds of patterns and preparation method thereof.
Background technology
Known finger navigation module is mostly carried out in a manner of finger displacement detecting, namely according to finger in the finger navigation
Displacement on the detection surface of module determines the displacement of cursor, for example, if the detection table of the finger in navigation module
The distance of three pixels is moved in face, then the cursor of controlled screen is i.e. in three unit distances of relative movement on display surface.
In recent years, finger navigation module is gradually widely used in portable electronic devices because of its convenience, such as hand
Machine etc..Therefore, finger navigation module, which preferably possesses, has the detection surface of reduced size can be applied to portable electronic devices,
But when needing significantly to move cursor position, often it is limited to the area on the detection surface of finger navigation module and must allows
Finger constantly being displaced on the detection surface back and forth, can reach the purpose of lasting mobile cursor, thus cause to use
Inconvenience when person operates.
The content of the invention
In view of this, the present invention provides a kind of condenser type hand that movable signal can be persistently detected on small size detection surface
Instruct model plane group and preparation method thereof.
The present invention provides a kind of capacitive finger navigation module that can simply make.
The present invention also provides a kind of capacitive finger navigation module, and it becomes using the inductance capacitance of different groups of inductance capacitances
Change and detect movable signal and pressing signal respectively.
The present invention provides a kind of capacitive finger navigation module, comprising contact layer, first electrode layer, the second electrode lay and
Elastomeric layer.The contact layer carries out displacement operation and pressing operation thereon with for finger.The first electrode layer bag
Containing at least one first electrode.The second electrode lay includes at least one second electrode and at least one 3rd electrode.Institute
State elastomeric layer to be arranged between the first electrode layer and the second electrode lay, to produce when the pressing operation
Deformation and change the first electrode layer and the second electrode interlayer distance, wherein described first under the pressing operation
Electrode produces pressing signal with the second electrode to change according to the first inductance capacitance, described second under the displacement operation
Electrode produces displacement signal with the 3rd electrode to change according to the second inductance capacitance.
In one embodiment, the capacitive finger navigation module coupling processing unit is to according to the pressing signal generation
Continue displacement signal.The second electrode lay includes multiple induction electrodes respectively to when first inductance capacitance change exceedes
The pressing signal is produced during change threshold.The processing unit can also determine according to the electrode number for producing the pressing signal
The velocity of displacement for continuing displacement signal, according to producing, the electrode position decision for pressing signal is described to continue displacement signal
Direction of displacement and/or produced according to the pressing signal of the induction electrode of Part I and described continue displacement signal simultaneously
Click signal is produced according to the pressing signal of the induction electrode of Part II.
The present invention a kind of capacitive finger navigation module is also provided, comprising contact layer, induction electrode layer, drive electrode layer,
Elastomeric layer and processing unit.The contact layer carries out pressing operation thereon with for finger.The induction electrode layer bag
Containing multiple induction electrodes.The drive electrode layer includes the relatively described induction electrode of at least one driving electrodes.The elastic material
The bed of material is arranged at the induction electrode layer and the driving electrodes interlayer, changes to produce deformation when the pressing operation
The distance of the induction electrode layer and the driving electrodes interlayer.The processing unit under the pressing operation according to institute
State the inductance capacitance change that induction electrode is sensed and produce strength signal and direction signal.
In one embodiment, the strength signal is controlling cursor moving speed and the direction signal is controlling cursor
Moving direction.The processing unit number of electrodes of inductance capacitance change more than change threshold according to the induction electrode
Mesh determines the strength signal and can changed according to the inductance capacitance more than described in the electrode position decision of the change threshold
Direction signal.
In one embodiment, the processing unit can become according to the inductance capacitance that the induction electrode of Part I is sensed
Change the sense that produces the strength signal and the direction signal and can be sensed according to the induction electrode of Part II
Capacitance variations are answered to produce click signal.
The present invention also provides a kind of preparation method of capacitive finger navigation module, comprises the steps of：Soft board is provided；In
First electrode layer and the second electrode lay are formed respectively on the soft board；In being formed on the soft board described in multiple cablings are electrically connected with
First electrode layer and the second electrode lay；Cover elastomeric layer in the soft board, the cabling, the first electrode layer and
The second electrode lay is at least in some；And the bending soft board is so that the first electrode layer passes through the elastomeric material
Aspect is to the second electrode lay.
In one embodiment, the second electrode is driving electrodes, and the first electrode and the 3rd electrode are induced electricity
Pole.In one embodiment, the second electrode is induction electrode, and the first electrode and the 3rd electrode are driving electrodes.
In one embodiment, the second electrode lay includes multiple second electrodes and multiple 3rd electrodes, part described
Two electrodes are to each other with different area and part the 3rd electrode to each other with different area.
In the capacitive finger navigation module of the embodiment of the present invention, soft board is setting the first electrode layer and described
Two electrode layers, and by bending the soft board so that the first electrode layer and the second electrode lay pass through the elastomeric material
Layer is relative, you can easily completes.In addition, by Different electrodes group, the pressing of detection finger and finger movement can be reached simultaneously
Function.
For features described above of the invention and advantage can be become apparent, special embodiment below, and coordinate institute's accompanying drawings
It is described in detail below.
Brief description of the drawings
Fig. 1 is the modular architecture figure of one embodiment of the invention；
Fig. 2A is the schematic diagram that one embodiment of the invention is used for easy making finger navigation module；
Fig. 2 B are the finger navigation modular architecture figure that one embodiment of the invention uses easy making；
Fig. 2 C are schematic diagram when one embodiment of the invention is pressurized using the module of easy making；
Fig. 2 D are flow chart of the one embodiment of the invention using the finger navigation module of easy making；
Fig. 3 A are the distribution of electrodes schematic diagram of one embodiment of the invention；
Fig. 3 B are the distribution of electrodes schematic diagram of another embodiment of the present invention；
Fig. 4 is the modular architecture figure of another embodiment of the present invention；
Fig. 4 A are the distribution of electrodes schematic diagram of one embodiment of the invention；
Fig. 4 B are the distribution of electrodes schematic diagram of another embodiment of the present invention；
Fig. 5 A are the schematic diagram of induction electrode before adjustment in one embodiment of the invention；
Fig. 5 B are the schematic diagram of induction electrode after the adjustment in one embodiment of the invention；
Fig. 6 A-6C are the modular architecture figure of another embodiment of the present invention；
Fig. 7 A-7C are the modular architecture figure of another embodiment of the present invention；And
Fig. 8 is the distribution of electrodes schematic diagram of another embodiment of the present invention.
Description of reference numerals
1000th, 1000 ' finger navigation module
1100 first electrode layers
1200 elastomeric layers
1200 ' flexible members
1300th, 1310 the second electrode lay
1311 second electrodes
1312 the 3rd electrodes
1400 contact layers
1500 soft boards
1510 bending regions
1600 processing units
1700 support members
SC0-SC3 sensing regions
R1-R3 envelop of function
Δ C1, the change of Δ C2 inductance capacitances
S21-S25 steps
Embodiment
In order to which the above and other objects, features and advantages of the present invention can be become apparent from, it will hereafter coordinate appended diagram, make
Describe in detail as follows.In addition, in the explanation of the present invention, identical component is represented with identical symbol, is first chatted in this conjunction bright.
The present invention provides a kind of capacitive finger navigation module, has：Contact layer, displacement or pressing are carried out with for finger
Operation；First electrode layer, there is at least one first electrode；The second electrode lay, with least one second electrode and at least
One the 3rd electrode；And elastomeric layer, it is arranged between the first electrode layer and the second electrode lay, when finger is pressed
During pressure, deformation is produced, and then change the distance between the first electrode layer and the second electrode lay；Wherein, described first
Inductance capacitance be present in electrode and the second electrode, to sensing finger presses and produces pressing signal, the second electrode with
There is inductance capacitance in the 3rd electrode, the displacement to sensing finger simultaneously produces displacement signal.
The modular architecture figure of one embodiment of the invention is shown with reference to figure 1, capacitive finger navigation module 1000 has first
Electrode layer 1100, elastomeric layer 1200, the second electrode lay 1300 and contact layer 1400；Wherein, the contact layer 1400 compared with
Good is an electrically non-conductive material, and pressing operation is carried out thereon with for finger.
The first electrode layer 1100 has at least one first electrode (not shown) and the second electrode lay 1300 has
There is at least one second electrode (not shown), wherein having between the first electrode layer 1100 and the second electrode lay 1300
Certain altitude, it is by the institute of elastomeric layer 1200 that is located between the first electrode layer 1100 and the second electrode lay 1300
Define.When finger carries out pressing operation by the contact layer 1400, the elastomeric layer 1200 can be made to produce deformation, and
Change the distance between the first electrode layer 1100 and the second electrode lay 1300, and then influence first electrode and the second electricity
Induced electricity capacitance between pole.Such as when finger presses the specific region of the finger navigation module 1000, then the given zone
The distance between first electrode below domain and second electrode can change, and change the part first electrode and second electrode it
Between inductance capacitance, and the region of finger pressing can be calculated by capacitance variation caused by these inductance capacitances, it is and right
A pressing signal should be produced.
The pressing signal can be a cursor control signal, there is provided the cursor move of a continuation, such as
When finger presses the left side block of the contact layer 1400, then the pressing signal can be one and persistently drive cursor toward left
Mobile instruction, and then stop the output of the instruction when finger stopping pressing block or produce a stopping shifting in addition
The instruction of dynamic cursor, for example, when capacitance variation exceedes change threshold generation cursor move and when capacitance variation is less than
Stop exporting the cursor move during change threshold or produce cursor halt instruction in addition.Wherein, pressed by finger
The first electrode or second electrode quantity influenceed during pressure can determine whether the degree of finger pressing, when the first electrode being affected
Or second electrode quantity compared with most represent finger press pressure it is larger, when the first electrode or second electrode quantity being affected compared with
Represent that the pressure of finger pressing is smaller at least.Be therefore, according to from the sensing signal detected between first electrode or second electrode
Change the direction that situation is the press pressure and pressing that can determine whether current finger.
In one embodiment, multiple conductive regions further can be set in the contact layer 1400, and make these conductive regions
It is electrically connected with respectively with the electrode of lower section the second electrode lay 1300, such as when being driving electrodes set by the second electrode lay 1300
When, whole the second electrode lay 1300 can be configured to 4 driving electrodes (please note 4 it is only as citing and not restricted
The meaning of creation spirit of the present invention), and one or more conductive regions of contact layer 1400 are electrically connected in 4 driving electrodes.Enter
Conductive region described in one step can be projection, there is provided the preferable operating experience of finger.
The finger navigation module 1000 can be completed by easy making mode, show that one embodiment of the invention is used with reference to figure 2A
In the schematic diagram of easy making finger navigation module；Wherein, the first electrode layer 1100 and the second electrode lay 1300 are straight
It is connected on a soft board 1500 and is formed, and is directly set in the first electrode layer 1100 and/or the second electrode lay 1300
After putting the elastomeric layer 1200, you can bend the soft board 1500, to be formed such as Fig. 2 B structure.Wherein, institute
State soft board 1500 and further may replace the contact layer 1400 with the 1300 corresponding block of the second electrode lay, make to provide
User's operating of contacts.In other words, the contact layer 1400 can (such as be now phase directly for a part for the soft board 1500
To a part for the second electrode lay 1300) or can be to set in addition.Shown with reference to figure 2C when finger pressing finger navigation mould
When at wherein the one of group 1000, the second electrode lay 1300 can tilt because of compression, cause part first electrode or second electrode sense
The induced electricity capacitance increase that should be arrived.
Fig. 2 D show flow chart of the one embodiment of the invention using the finger navigation module of easy making, include following step
Suddenly：Soft board (step S21) is provided；In first electrode layer and the second electrode lay (step S22) are formed on the soft board respectively；In institute
State and multiple cablings electric connections first electrode layer and the second electrode lay (step S23) are formed on soft board；Covering elasticity
Material layer is at least a part of upper (step of the soft board, the cabling, the first electrode layer and the second electrode lay
S24)；And the soft board is bent so that the first electrode layer faces the second electrode lay by the elastomeric layer
(step S25).
In step S22, the first electrode layer 1100 and the second electrode lay 1300 are respectively formed in the soft board
The both sides in region 1510 are bent, as shown in Figure 2 A；Wherein, the first electrode layer 1100 can be described comprising multiple induction electrodes
The second electrode lay 1300 can include at least one driving electrodes (as shown in figs.3 a and 3b).It will be appreciated that first electricity
Pole layer 1100 may also set up driving electrodes and the second electrode lay 1300 may also set up induction electrode.
In step S24, the elastomeric layer for example only can first be covered in the left side or right side in the bending region 1510
After enter back into step S25, enter back into step S25 after being also covered in the bending region 1510 and its left side and right side simultaneously,
Have no specific limitation.
The a variety of distribution of electrodes schematic diagrames of Fig. 3 A and Fig. 3 B display present invention.As shown in Fig. 3 A and Fig. 3 B, in soft board 1500
The first electrode layer 1100 is induction electrode set by side, and is the matrix-style arrangement with 4X4, and in soft board 1500
The second electrode lay 1300 is driving electrodes set by opposite side, wherein being to use single driving electrodes in Fig. 3 A, and is being schemed
3B driving electrodes are arranged using 4X4 matrix-style.Bending region 1510 in Fig. 3 A and Fig. 3 B is provided for soft
Plate 1500 is directly bent and forms the modular structure shown in Fig. 2 B.
In one embodiment, when first electrode layer 1100 is induction electrode and the second electrode lay 1300 is driving electrodes,
And the distribution of the induction electrode such as Fig. 3 A or Fig. 3 B matrix arrangement, then when finger is pressed in contact layer 1400,
Indivedual induction electrodes can induce the inductance capacitance value changes caused by distance change between driving electrodes alone in matrix, because
This finger navigation module can judge the pressing of finger according to the induction electrode quantity that inductance capacitance value changes occur with position
Direction and pressure.
Furthermore, in the capacitive finger navigation module 1000 of the present embodiment, the first electrode layer 1100
Can include multiple induction electrodes, the second electrode lay 1300 can include at least one driving electrodes (such as Fig. 3 A include it is single
Driving electrodes and Fig. 3 B include multiple driving electrodes) relatively described induction electrode.It should be noted that driven shown in Fig. 3 A and Fig. 3 B
The configuration of moving electrode and induction electrode is only exemplary, is not limited to the present invention.
In addition, the capacitive finger navigation module 1000 can also pass through multiple electrical cablings comprising processing unit 1600
(traces) first electrode layer 1100 and the second electrode lay 1300 are electrically connected with, is more specifically electrically connected with sensing
Electrode and driving electrodes.In one embodiment, the processing unit 1600 can be used under the pressing operation according to the sensing
The inductance capacitance change that electrode is sensed produces strength signal and direction signal to be used as cursor control signal；Wherein, the light
Mark control signal can be used to the cursor on relation control display screen (not illustrating).For example, the strength signal represents finger pressing
Degree and can be used to control cursor moving speed and the direction signal to control moving direction of cursor.
In one embodiment, the processing unit 1600 inductance capacitance change according to the induction electrode, which exceedes, to be become
The electrode number for changing threshold value determines the strength signal and according to electrode of the inductance capacitance change more than the change threshold
Position determines the direction signal；Wherein, when inductance capacitance change is more than 1 more than the electrode number of change threshold, such as can
Calculated according to the maximum induction electrode of the geometric center position of multiple induction electrodes, inductance capacitance change or using internal difference method
Position is not limited thereto as the electrode position.
In another embodiment, the function of multiple induction electrodes can be cut, such as the processing unit 1600 can basis
The inductance capacitance change that the induction electrode of Part I is sensed produces the strength signal and the direction signal and can
The inductance capacitance change sensed according to the induction electrode of Part II produces click signal.A such as embodiment
In, the Part I can be the second electrode lay 1300 marginal portion (as shown in Fig. 6 B R3) and the Part II
It can be the middle body (as shown in Fig. 6 B R1) of the second electrode lay 1300, but be not limited thereto.In addition, when progress work(
When can split, the induction electrode interregional between difference in functionality can not correspond to any function (as shown in Fig. 6 B R2), Yi Liqu
Divide difference in functionality.
In above-described embodiment, the first electrode layer and the second electrode lay can be described as driving when only including driving electrodes
Moving electrode layer and can be described as induction electrode layer when only including induction electrode.
Fig. 4 shows the modular architecture figure of another embodiment of the present invention, unlike Fig. 1 embodiment showns, this implementation
The second electrode lay 1310 has at least one second electrode 1311 and at least one 3rd electrode 1312 in example.Second electricity
It is not turned on each other (electrically isolated) between pole 1311 and the 3rd electrode 1312, and mutually there is inductance capacitance.When finger leans on
During the near or contact contact layer 1400, the induced electricity between the second electrode 1311 and the 3rd electrode 1312 can be influenceed
Hold, and and then influence capacitance caused by these inductance capacitances, be by capacitance variation caused by these inductance capacitances
The region of finger process, and one finger displacement signal of corresponding generation can be calculated.
In one embodiment, Fig. 4 first electrode layer 1100 preferably can be driving electrodes, and the second electrode lay 1310
Second electrode 1311 can be induction electrode, and the 3rd electrode 1312 can be driving electrodes.When finger is in contact surface 1400
When top is moved, can influence arround electric field between the electrode 1312 of second electrode 1311 and the 3rd, and then change corresponding second
Induced electricity capacitance size detected by electrode 1311, it so can determine whether the glide direction, speed and sliding trace of finger.
When finger presses above contact surface 1400, you can the driving of second electrode 1311 corresponding to change and first electrode layer 1100
The distance between electrode, and then influence the electric field between two electrodes and change the induced electricity capacitance detected by second electrode 1311
Size.
In more detail, in the present embodiment, the contact layer 1400 can be used to for finger thereon carry out displacement operation and
Pressing operation.The elastomeric layer 1200 is similarly provided at the first electrode layer 1100 and the second electrode lay 1310
Between, change to produce deformation when the pressing operation between the first electrode layer 1100 and the second electrode lay 1310
Distance.Therefore, in the capacitive finger navigation module 1000' of the present embodiment, the first electrode under the pressing operation
1100 press signal with the second electrode 1311 to be produced according to the first inductance capacitance changes delta C1, under the displacement operation
The second electrode 1311 is with the 3rd electrode 1312 to according to the second inductance capacitance changes delta C2 generation displacement signals.
Induced electricity capacitance detected by second electrode 1311 is presented increased trend, and compared to not there is any inductance capacitance
The height that the data of value changes are come, it can be determined that be that finger pressing causes first electrode layer 1100 and the second electrode lay 1300/1310
Distance reduce and cause induced electricity capacitance increase；Reduced in addition when the induced electricity capacitance detected by second electrode 1311 is presented
Trend, it is and low compared to what the data for not having any inductance capacitance value changes were come, it can be determined that to be finger contact or close to connecing
Contact layer 1400 and cause the electrode 1312 of second electrode 1311 and the 3rd between inductance capacitance reduce, and cause second electrode 1311
Detected induced electricity capacitance is reduced.
In another embodiment, Fig. 4 first electrode layer 1100 may be alternatively provided as induction electrode, therefore the first electrode
The induced signal of layer 1100 can directly judge the degree and position or orientation of finger pressing, and the second electrode lay 1310
The induced signal of second electrode 1311 is then judging position that finger comes close to or in contact with.
For example, the finger navigation module 1000 of the present embodiment can also couple processing unit 1600 to believe according to the pressing
Number produce continue displacement signal；Wherein, the processing unit 1600 may be included in the finger navigation module 1000 or comprising
External device (ED), such as main frame (host).
As shown in Figure 4 A and 4 B shown in FIG., the second electrode lay 1310 includes multiple induction electrodes (such as second electrode 1311)
Respectively producing the pressing signal, the processing unit when the first inductance capacitance changes delta C1 exceedes change threshold
1600 can also determine the velocity of displacement for continuing displacement signal according to the electrode number for producing the pressing signal.For example, work as
When the pressing signal is to relation control cursor action or output intensity, the higher pressure for representing finger pressing of the electrode number
Power is bigger, and the translational speed of the cursor is faster or the output intensity is stronger；Conversely, the lower expression finger of the electrode number
The pressure of pressing is smaller, and the translational speed of the cursor is slower or the output intensity is weaker.In addition, the processing unit 1600
Can also the direction of displacement that displacement signal continued be determined according to the electrode position for producing the pressing signal.For example, when described
When pressing signal to relation control cursor action, the direction of displacement can determine moving direction of cursor.The change threshold is then
It can be set in advance.
As it was previously stated, the function corresponding to multiple induction electrodes can be split, such as the processing unit 1600 can be used
The lasting displacement signal is produced and according to second with the pressing signal of the second electrode 1311 according to Part I
The pressing signal of partial second electrode 1311 produces click signal.Similarly, the Part I can be described
The marginal portion of the second electrode lay 1310 and the Part II can be the middle body of the second electrode lay 1310, but unlimited
In this.
The modular architecture provided by Fig. 4, can in single individual finger navigation module simultaneously provide pressing sensing and
Sliding position senses, can coupled system mobile cursor/slide-mouse left button/slide-mouse right button or other hands are produced to cursor or related software
Gesture, and multiple parameters are arranged in pairs or groups and can also be used for providing more polynary user's experience, such as user is while finger is slided
Pressed, it is possible to provide in interface simultaneously control role movement and attack, and strengthen or reduce pressing power and
It may correspond to attack the size of power or the conversion of weapon etc..
In addition, to enable the finger navigation module 1000 of the present embodiment to be applied to portable electronic devices, the finger
Navigate module 1000 may be also smaller (such as in the range of 8 millimeters × 8 millimeters) than finger area, therefore the contact layer 1400 compared with
It is good to be designed to curved surface (such as convex surface or concave surface) so as to be unlikely to contact the second electrode lay simultaneously when finger is placed thereon
1310 electrode 1312 of all second electrodes 1311 and the 3rd, it is easier to realize detection finger in the displacement of the contact layer 1400
Operation.
As described above, the finger navigation module 1000 of the present embodiment equally using Fig. 2 D manufacture method make, with
The both sides of bending region 1510 on soft board 1500' form first electrode layer 1100 and the second electrode lay 1310 respectively, such as Fig. 4 A and
Shown in 4B.Similarly, the part or set in addition that the contact layer 1400 can be directly for the soft board 1500'.
In the present embodiment, the first electrode layer 1100 includes at least one first electrode and the second electrode lay includes
At least one second electrode 1311 and at least one 3rd electrode 1312, and the second electrode 1311 and the 3rd electrode
1312 is electrically isolated to be respectively connecting to different potentials.In one embodiment, the second electrode 1311 can be driving electrodes, described
First electrode 1100 and the 3rd electrode 1312 can be induction electrode.In another embodiment, the second electrode 1311 can be
Induction electrode, the first electrode 1100 and the 3rd electrode 1312 can be driving electrodes.Further, since driving electrodes to
Send drive signal and induction electrode is to export induced signal, the electrode number of the driving electrodes can only set 1 i.e.
Can, but multiple driving electrodes can be also set according to different application；The electrode number of the induction electrode is preferably more than 1, with energy
Enough detect the inductance capacitance change of multiple positions.
In addition, in the present embodiment, continue displacement letter because the processing unit 1600 can produce according to the pressing signal
Number and displacement signal can be produced according to the second inductance capacitance changes delta C2, therefore the processing unit 1600 can be according only to institute
State one of lasting displacement signal and displacement signal and carry out controlling cursor action, such as when the processing unit 1600 detects institute
Institute's displacement signal then can be neglected when stating lasting displacement signal, also can reversely for it.However, when the pressing signal is used for other
Function, such as can be held simultaneously according to the pressing signal and institute's displacement signal as click signal, the processing unit 1600
The corresponding action of row.Institute's displacement signal instigates user person produced by mobile on the contact layer 1400.
In one embodiment, the displacement signal that continues is, for example, that user is produced when pressing on the contact layer 1400
Raw, now user with translational speed in shift position on the contact layer 1400 without still can persistently move cursor pre-determined distance
Or preset time；Wherein, the translational speed can determine according to finger pressure size, and the displacement of cursor moves with finger
Distance can have preset ratio relation.
Fig. 5 A show the schematic diagram of induction electrode and driving electrodes before adjustment in one embodiment of the invention；And Fig. 5 B show
Show the schematic diagram of induction electrode and driving electrodes after the adjustment in one embodiment of the invention.Because in general finger navigation module is
It is easy to use, its contact layer is designed as domed shape, but with reference to figure 5A, when induction electrode and driving electrodes are arranged for matrix
Row, then can not be completely corresponding between induction electrode and driving electrodes and contact layer.Therefore, when induction electrode and driving electrodes are made
When being NXN arrangement, referring to Fig. 5 B designs, to form the induction electrode closer to edge irregular so that finger exists
When any position of the contact layer of domed shape is contacted, corresponding induction electrode can all produce identical induced electricity capacitance
Change.In details of the words, the second electrode lay 1310 includes the part second electrode of multiple second electrodes 1311 each other
Between can part the 3rd electrode with different area (shape) and/or multiple 3rd electrodes 1312 to each other can with difference
Area (shape), and the electrode 1312 of second electrode 1311 and the 3rd of center section can then have roughly the same area (shape
Shape).Thereby, because most of display is rectangular, as Fig. 5 B circular electrode be distributed the less electrode of periphery usable floor area,
The finger of user can be allowed to move a sensing unit (cell), such as one group of driving electricity in periphery movement small distance can
Pole and the scope of sensing electrode, periphery is caused to slide with rectangular-shaped mismatch because circular when corresponding to display with compensation
The problem of multiple.
It refer to shown in Fig. 6 A-6C, it shows the capacitive finger navigation module of another embodiment of the present invention.Fig. 6 A-6C
Be with the difference of Fig. 1,2B and 4, in the elastomeric layer 1200 also include to be supported in the first electrode layer and
Support member 1700 between 1100 the second electrode lays 1300.In one embodiment, the support member 1700 is located at the elastic material
The middle body of the bed of material 1200.In some embodiments, the set location of the support member 1700 can be depending on different application.This
Outside, in the capacitive finger navigation module of the present embodiment, the contact layer 1400 can be plane (figure for the surface of user's contact
6A), convex surface (Fig. 6 B) or concave surface (Fig. 6 C), has no specific limitation.
In one embodiment, the electrode configuration of the first electrode layer 1100 and the second electrode lay 1300 can be same as
Each embodiment (such as Fig. 3 A-3B, 4,4A-4B and 5B) is stated, to detect pressing operation and/or displacement operation.
In the present embodiment, due to being provided with the support member 1700, the first electrode layer 1100 and the second electrode
Layer 1300 only can be close to each other in the part at edge, and produces the capacitance variations in small range region, in favor of calculating touch point.
Therefore in some embodiments, the electrode in the first electrode layer 1100 and the second electrode lay 1300 can be only arranged at close
Edge and be not provided with driving electrodes or induction electrode in the near its circumference of support member 1700.Such as Fig. 3 A-3B and 4A-4B
Only form the electrode of marginal portion.In another embodiment, the electrode in the first electrode layer 1100 can be also formed such as Fig. 8 institutes
Show, wherein, Ed be, for example, driving electrodes, Es be, for example, induction electrode, 1700 set locations for representing support members；Wherein, in Fig. 8
The ratio of element only to illustrate, is not limited to the present invention.
In another embodiment, the second electrode lay 1300 can be not provided with electrode and the first electrode layer 1100 simultaneously
Induction electrode and driving electrodes (such as Fig. 8) are provided with, and the second electrode lay 1300 and support member 1700 are conduction material
Matter.Therefore, when the edge of the second electrode lay 1300 is pressed and close to the first electrode layer 1100 when, can be in described
First electrode layer 1100 induces capacitance variations；Wherein, the support member 1700 is arranged at the one of the first electrode layer 1100
End is electrically isolated with the first electrode layer 1100.
When Fig. 6 A-6C capacitive finger navigation module is made, it is only necessary to increased newly in Fig. 2 D and the support member is set
1700 the step of, this step for example can be between step S22 and S23 or between step S23 and S24, therefore still is able to
Make in a straightforward manner.
In another embodiment, the elastomeric layer 1200 can be substituted with other flexible members 1200 ', such as Fig. 7 A-7C institutes
Show；Wherein, the flexible member 1200 ' is non-conductive material and is connected to first electrode layer 1100 and the second electrode lay
Between 1300, reinstatement when external force eliminates as long as it deformation can be produced when depressed, specific limitation is had no.
The flexible member 1200 ' for example can be made by rubber or sponge.To maintain balance in some embodiments, can be equally spaced
Multiple flexible members 1200 ' are around the support member 1700.In addition to the flexible member 1200 ', the electricity of the present embodiment
The operation of appearance formula finger navigation module and electrode configuration are identical with the various embodiments described above, for example, in some embodiments, Fig. 7 A-7C
The first electrode layer 1100 and the second electrode lay 1300 in settable electrode, as shown in Fig. 3 A, 3B, 4A and 4B,
But it is not limited thereto；In other embodiment, any electrode is not provided with Fig. 7 A-7C the second electrode lay 1300 and in institute
State in first electrode layer 1100 while be provided with induction electrode and driving electrodes (such as Fig. 8), but be not limited thereto.Similarly,
In some embodiments, the first electrode layer 1100 described in the second electrode lay 1300 around support member 1700 with that can not set
Put electrode and driving electrodes and induction electrode only are set in electrode layer adjacent peripheral edges.
Although the present invention is disclosed by previous embodiment, it is not limited to the present invention, any institute of the present invention
Belonging to has the technical staff of usual knowledge in technical field, without departing from the spirit and scope of the present invention, various when that can make
Change and change.Therefore protection scope of the present invention is worked as and is defined depending on the scope that appended claims are defined.
Claims (23)
1. a kind of capacitive finger navigation module, the navigation module includes：
Contact layer, displacement operation and pressing operation are carried out thereon with for finger；
First electrode layer, include at least one first electrode；
The second electrode lay, comprising multiple second electrodes and multiple 3rd electrodes, the part second electrode has difference to each other
Area and part the 3rd electrode have different area to each other；And
Elastomeric layer, it is arranged between the first electrode layer and the second electrode lay, to when the pressing operation
Produce deformation and change the distance between the first electrode layer and the second electrode lay；
Wherein, the first electrode produces with the second electrode to be changed according to the first inductance capacitance under the pressing operation
Signal is pressed, the second electrode produces with the 3rd electrode to change according to the second inductance capacitance under the displacement operation
Displacement signal.
2. capacitive finger navigation module according to claim 1, wherein
The second electrode is driving electrodes, and the first electrode and the 3rd electrode are induction electrode；Or
The second electrode is induction electrode, and the first electrode and the 3rd electrode are driving electrodes.
3. capacitive finger navigation module according to claim 2, wherein the electrode number of the driving electrodes is more than etc.
In 1, the electrode number of the induction electrode is more than 1.
4. capacitive finger navigation module according to claim 1, wherein at the capacitive finger navigation module coupling
Unit is managed, the processing unit continues displacement signal to be produced according to the pressing signal.
5. capacitive finger navigation module according to claim 4, wherein the multiple second electrode or the multiple
Three electrodes are induction electrode, are believed respectively to produce the pressing when first inductance capacitance change exceedes change threshold
Number, the processing unit determines the displacement speed for continuing displacement signal always according to the electrode number for producing the pressing signal
Degree.
6. capacitive finger navigation module according to claim 4, wherein the multiple second electrode or the multiple
Three electrodes are induction electrode, are believed respectively to produce the pressing when first inductance capacitance change exceedes change threshold
Number, the processing unit determines the displacement side for continuing displacement signal always according to the electrode position for producing the pressing signal
To.
7. capacitive finger navigation module according to claim 1, the navigation module also includes and is arranged at the elastic material
In the bed of material and the support member that is supported between the first electrode layer and the second electrode lay.
8. capacitive finger navigation module according to claim 1, the navigation module is also included to set described first
The soft board of electrode layer and the second electrode lay, wherein the contact layer is a part for the soft board.
9. a kind of capacitive finger navigation module, the navigation module includes：
Contact layer, pressing operation is carried out thereon with for finger；
Induction electrode layer, include multiple induction electrodes；
Drive electrode layer, include the relatively described induction electrode of at least one driving electrodes；
Elastomeric layer, it is arranged between the induction electrode layer and the drive electrode layer, to when the pressing operation
Produce deformation and change the distance between the induction electrode layer and the drive electrode layer；And
Processing unit, the inductance capacitance change to be sensed under the pressing operation according to the induction electrode produce intensity
Signal and direction signal, wherein processing unit inductance capacitance change according to the induction electrode exceedes change threshold
Electrode number determine the strength signal and determined according to inductance capacitance change more than the electrode position of the change threshold
The fixed direction signal.
10. capacitive finger navigation module according to claim 9, wherein the strength signal is controlling cursor to move
Speed and the direction signal are controlling moving direction of cursor.
11. capacitive finger navigation module according to claim 9, the navigation module also includes and is arranged at the elastic material
In the bed of material and the support member that is supported between the induction electrode layer and the drive electrode layer.
12. capacitive finger navigation module according to claim 9, the navigation module is also included to set the sensing
The soft board of electrode layer and the drive electrode layer, wherein the contact layer is a part for the soft board.
13. capacitive finger navigation module according to claim 9, wherein the contact layer also includes multiple conductive regions
Multiple driving electrodes of the drive electrode layer are electrically connected.
14. a kind of manufacture method of capacitive finger navigation module, the manufacture method include：
Soft board is provided；
First electrode layer and the second electrode lay are formed respectively on the soft board, wherein the first electrode layer and second electricity
Pole layer is respectively formed in the both sides in the bending region of the soft board；
Multiple cablings of the first electrode layer and the second electrode lay are electrically connected on the soft board；
At least elastic material is covered in the soft board, the cabling, the first electrode layer and the second electrode lay in some
The bed of material；And
The soft board is bent so that the first electrode layer faces the second electrode lay by the elastomeric layer.
15. manufacture method according to claim 14, wherein the first electrode layer include at least one first electrode and
The second electrode lay includes at least one second electrode and at least one 3rd electrode, and the second electrode and the described 3rd
Electrode is electrically isolated.
16. manufacture method according to claim 15, wherein
The second electrode is driving electrodes, and the first electrode and the 3rd electrode are induction electrode；Or
The second electrode is induction electrode, and the first electrode and the 3rd electrode are driving electrodes.
17. manufacture method according to claim 14, wherein the first electrode layer is described comprising multiple induction electrodes
The second electrode lay includes at least one driving electrodes, or the first electrode layer include at least one driving electrodes and described second
Electrode layer includes multiple induction electrodes.
18. a kind of capacitive finger navigation module, the navigation module includes：
Contact layer, displacement operation and pressing operation are carried out thereon with for finger；
First electrode layer, include at least one first electrode；
The second electrode lay, comprising multiple second electrodes and multiple 3rd electrodes, wherein the multiple second electrode or the multiple
3rd electrode is induction electrode；And
Elastomeric layer, it is arranged between the first electrode layer and the second electrode lay, to when the pressing operation
Produce deformation and change the distance between the first electrode layer and the second electrode lay；
Wherein, the first electrode produces with the second electrode to be changed according to the first inductance capacitance under the pressing operation
Signal is pressed, the second electrode produces with the 3rd electrode to change according to the second inductance capacitance under the displacement operation
Displacement signal,
Wherein, the capacitive finger navigation module coupling processing unit, the processing unit is to according to the pressing signal
Produce and continue displacement signal,
Wherein, the multiple induction electrode is respectively to described in the generation when first inductance capacitance change exceedes change threshold
Signal is pressed, the processing unit determines the position for continuing displacement signal always according to the electrode number for producing the pressing signal
Move speed.
19. capacitive finger navigation module according to claim 18, wherein
The second electrode is driving electrodes, and the first electrode and the 3rd electrode are induction electrode；Or
The second electrode is induction electrode, and the first electrode and the 3rd electrode are driving electrodes.
20. capacitive finger navigation module according to claim 19, wherein the electrode number of the driving electrodes is more than
Equal to 1, the electrode number of the induction electrode is more than 1.
21. capacitive finger navigation module according to claim 18, wherein the processing unit is always according to described in generation
The electrode position for pressing signal determines the direction of displacement for continuing displacement signal.
22. capacitive finger navigation module according to claim 18, the navigation module also includes and is arranged at the elasticity
In material layer and the support member that is supported between the first electrode layer and the second electrode lay.
23. capacitive finger navigation module according to claim 18, the navigation module is also included to set described the
The soft board of one electrode layer and the second electrode lay, wherein the contact layer is a part for the soft board.
Priority Applications (1)
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| CN201710645960.7A CN107479775A (en) | 2014-02-24 | 2014-07-03 | Capacitive finger navigation module |
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| TW103106202 | 2014-02-24 | ||
| TW103106202 | 2014-02-24 |
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|---|---|---|---|
| CN201710645960.7A Division CN107479775A (en) | 2014-02-24 | 2014-07-03 | Capacitive finger navigation module |
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| CN104866147A CN104866147A (en) | 2015-08-26 |
| CN104866147B true CN104866147B (en) | 2018-01-23 |
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| CN201410315533.9A Active CN104866147B (en) | 2014-02-24 | 2014-07-03 | Capacitive finger navigation module and manufacturing method thereof |
| CN201710645960.7A Pending CN107479775A (en) | 2014-02-24 | 2014-07-03 | Capacitive finger navigation module |
| CN201810954585.9A Active CN108845724B (en) | 2014-02-24 | 2015-01-20 | Capacitive key module with function of preventing mistaken touch |
| CN201510027460.8A Active CN104866149B (en) | 2014-02-24 | 2015-01-20 | Intelligent device with function of preventing false touch |
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| CN201710645960.7A Pending CN107479775A (en) | 2014-02-24 | 2014-07-03 | Capacitive finger navigation module |
| CN201810954585.9A Active CN108845724B (en) | 2014-02-24 | 2015-01-20 | Capacitive key module with function of preventing mistaken touch |
| CN201510027460.8A Active CN104866149B (en) | 2014-02-24 | 2015-01-20 | Intelligent device with function of preventing false touch |
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| TW (1) | TW201533644A (en) |
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| CN110134254B (en) * | 2019-05-16 | 2021-08-17 | 上海艾为电子技术股份有限公司 | Terminal control system and method |
| CN112130002A (en) * | 2020-09-01 | 2020-12-25 | 珠海普林芯驰科技有限公司 | Capacitance sensing device, working method thereof and electronic equipment |
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| TWI815784B (en) * | 2022-01-13 | 2023-09-11 | 大陸商宸鴻科技（廈門）有限公司 | Flexible display input device |
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Also Published As
| Publication number | Publication date |
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| CN108845724A (en) | 2018-11-20 |
| CN104866149B (en) | 2018-09-18 |
| CN104866149A (en) | 2015-08-26 |
| CN104866147A (en) | 2015-08-26 |
| CN107479775A (en) | 2017-12-15 |
| TW201533644A (en) | 2015-09-01 |
| CN108845724B (en) | 2021-11-26 |
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