CN106155430A - Bar shaped self-tolerant touch pad and touch-control system - Google Patents
Bar shaped self-tolerant touch pad and touch-control system Download PDFInfo
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Abstract
The invention provides a kind of bar shaped self-tolerant touch pad and touch-control system, described touch pad includes: induction electrode, pcb board and device routing layer, wherein, described induction electrode is located at the upper surface of described pcb board, described device routing layer is located at the lower surface of described pcb board, described device routing layer is provided with touch pad controller and many first electrical interconnection lines, described touch pad controller is electrically interconnected line by described first and connects described induction electrode, the signal of telecommunication is provided for described induction electrode, and monitor finger in described induction electrode and touch or the electric capacity knots modification of electric capacity corresponding to close each region and the change order of maximum capacitor knots modification thereof.Pcb board in the present invention only need to be designed to double-layer structure, thus can significantly reduce manufacturing process complexity and the manufacturing cost of touch pad.
Description
Technical field
The present invention relates to a kind of touch pad and touch-control system, particularly relate to a kind of bar shaped self-tolerant touch pad and touch-control system
System.
Background technology
Wearable device is more and more universal, and its mode of operation is also constantly challenged by ease for use.Bar shaped capacitance touch
Plate is because having the advantages such as false triggering ability natural, anti-easy to operate, mutual is strong, and becomes the main flow in wearable device
Trackpad.Mainly being realized by mutual capacitance type technology of existing bar shaped capacitive touch control plate, i.e. by bar shaped Petting Area
The touch action of upper and lower two layers of mesh ruling finger sensing is arranged in territory, to obtain the operating gesture of user.It typically uses four
Layer PCB construction is made, respectively horizontal scanning line, column scan line, ground plane and device layer, when finger touches ranks
During scan line infall, the electric capacity of infall induction electrode changes, and can be calculated the touch location of finger with this.
But, mutual capacitance type technology is the highest to the requirement of touch pad controller, needs to select the touch pad supporting mutual tolerance scanning
Controller, and configure corresponding mutual tolerance scan control software.It addition, the more pcb board of the number of plies makes touch pad system
Cause high, manufacturing process is complicated, is difficult in the wearable device of low cost universal.
Scanning to realize high accuracy, mutual capacitance type touch pad scan line needs have higher density, and corresponding passage
Number also sharply increases, and which in turns increases the design complexities of touch pad controller, and then improves mutual capacitance type touch
The cost of plate.Additionally, the longitudinal direction operation of mutual capacitance type touch pad, owing to width dimensions is limited, at most arrange three row scannings
Line, and the longitudinal sliding motion of finger is at most represented only with three points, cause touch accuracy poor, and easily touch because of hop
Control and produce longitudinal maloperation.
The induction electrode of existing self-tolerant touch pad is generally made up of multiple wedge electrodes, and is mainly used in large scale touch
On plate or touch screen.Fig. 1 is the structural representation of the induction electrode of existing self-tolerant touch pad, as it is shown in figure 1, work as hands
When referring to touch the wider place of the wedge electrode 101 in induction electrode 100 and narrower place, in touch pad, electric capacity is non-linear
Change, under any micro state, is required to the collaborative work of two wedge electrodes 101 and could eliminate this non-linear,
So, touch pad controller controls the correction algorithm of software can be more complicated, and unit are touch pad needs
Wedge electrode quantity is the most more.
Summary of the invention
The present invention provides a kind of bar shaped self-tolerant touch pad and touch-control system, tactile to reduce bar shaped in existing wearable device
The manufacturing cost of template, improves its induction precision, and reduces its manufacturing process complexity.
The present invention provides a kind of bar shaped self-tolerant touch pad, and described touch pad includes: induction electrode, pcb board and device
Part routing layer, wherein, described induction electrode is located at the upper surface of described pcb board, and described device routing layer is located at institute
State the lower surface of pcb board, described device routing layer be provided with touch pad controller and many first electrical interconnection lines,
Described touch pad controller is electrically interconnected line by described first and connects described induction electrode, provides electricity for described induction electrode
Signal, and monitor finger in described induction electrode touch or the electric capacity knots modification of electric capacity corresponding to close each region and
The change order of maximum capacitor knots modification.
In one embodiment, described induction electrode includes: the metal electrode of at least two rectangle, and described metal electrode is arranged
Arrange at least a line；Each described metal electrode is electrically interconnected line with described touch pad controller even by one first respectively
Connect；When finger touch or close described metal electrode, corresponding to described metal electrode, the capacitance of electric capacity changes.
In one embodiment, the adjacent spacing between metal electrode is equal.
In one embodiment, the length and width dimension scale of described metal electrode is 7.2:4.3, and described spacing is 0.2～0.8mm.
In one embodiment, the number of described metal electrode is 16, lines up two row, and making described induction electrode is square
Shape structure.
In one embodiment, the length and width of described metal electrode a size of 7.2mm × 4.3mm, described spacing is 0.4mm,
And the length and width a size of 63mm × 10mm of described pcb board.
In one embodiment, described touch pad also includes: many second are electrically interconnected line, described touch pad controller draw
Going out, part described second is electrically interconnected line and connects an application processor, and described in another part, second is electrically interconnected line connection one electricity
Source control chip, described application processor is connected with described power management chip.
In one embodiment, every described second is electrically interconnected line and connects metal finger respectively, and part described second is electrically interconnected line
Described application processor is connected by connected described metal finger；Described in another part second be electrically interconnected line by with
Its described metal finger connected connects described power management chip.
The present invention also provides for a kind of touch-control system, comprising: a bar shaped self-tolerant touch pad, an application processor and
Power management chip；Wherein, described bar shaped self-tolerant touch pad includes: induction electrode, pcb board, device cabling
Layer；Described induction electrode is located at the upper surface of described pcb board, and described device routing layer is located under described pcb board
Surface, is provided with touch pad controller, many first electrical interconnection lines and many second electrical interconnections in described device routing layer
Line；Described touch pad controller is electrically interconnected line by described first and connects described induction electrode, carries for described induction electrode
Power supply signal, and monitor finger in described induction electrode and touch or the electric capacity knots modification of electric capacity corresponding to close each region
And the change order of maximum capacitor knots modification；Described touch pad controller is electrically interconnected line by part described second and connects
Described application processor, and line is electrically interconnected by described in another part second and connects described power management chip, described should
It is connected with described power management chip with processor；Described application processor is used for controlling described power management chip
Described touch pad controller is powered, and described application processor is additionally operable to initialize described touch pad controller.
In one embodiment, described induction electrode includes: the metal electrode of at least two rectangle, and described metal electrode is arranged
Arranging at least a line, the adjacent spacing between metal electrode is equal；Each described metal electrode is respectively by one piece the
One is electrically interconnected line is connected with described touch pad controller；When finger touch or close described metal electrode, described metal
The capacitance of electric capacity corresponding to electrode changes.
The touch pad of the embodiment of the present invention only with the pcb board of double-layer structure, can simplify the manufacture work of pcb board
Skill, significantly reduces manufacturing process complexity and the manufacturing cost of touch pad.Further, the embodiment of the present invention touches
The induction electrode of plate uses rectangular metal electrode, and the electric capacity corresponding to metal electrode is nonlinear change, it is not necessary to arrange height
Density electrode, it is not required that high pass number of channels, significantly reduces the design complexities of touch pad controller, and then reduces bar
The manufacturing cost of shape touch pad.The present invention program achieves a kind of self induction condenser type bar shaped touch pad with extremely low cost
Gesture identification, there is the advantages such as low cost, precision is high, be readily produced.The touch-control system of the embodiment of the present invention, because of
Bar shaped self-tolerant touch pad containing low cost, and there is relatively low equipment totle drilling cost, the more market competitiveness.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only
It is some embodiments of the present invention, for those of ordinary skill in the art, in the premise not paying creative work
Under, it is also possible to other accompanying drawing is obtained according to these accompanying drawings.In the accompanying drawings:
Fig. 1 is the structural representation of the induction electrode of existing self-tolerant touch pad；
Fig. 2 is the structural representation of the touch-control system of the embodiment of the present invention；
Fig. 3 is the structural representation of the induction electrode of the touch pad of the embodiment of the present invention；
Fig. 4 is the structural representation of the embodiment of the present invention device routing layer corresponding with induction electrode in Fig. 3.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with Fig. 2 to Fig. 4
The embodiment of the present invention is described in further detail.Here, the schematic description and description of the present invention is used for explaining
The present invention, but not as a limitation of the invention.
Fig. 2 is the structural representation of the touch-control system of the embodiment of the present invention.As in figure 2 it is shown, this touch-control system includes answering
With processor (Application Processor, AP), power management chip (Power Management IC, PMIC),
And touch pad (Touch Panel, TP).Wherein, touch pad TP is provided with touch pad controller (Touch Panel
Controller, TPC), touch pad controller TPC is connected with the induction electrode on touch pad TP.
Application processor AP is connected with power management chip PMIC, power management chip PMIC again with touch pad control
Device TPC processed connects, so that application processor AP makes power management chip PMIC supply electricity to touch by control command
Plate controller TPC；Application processor AP is electrically connected with touch pad controller TPC by I2C interface, to pass through
I2C interface initialization touch pad controller TPC also makes it into normal mode of operation.
In the normal mode of operation, the induction electrode that touch pad controller TPC is touch pad TP provides the telecommunications such as voltage
Number, and set initialization parameter, such as voltage threshold, noise etc.；After initialization completes, touch pad controller
TPC enters monitoring pattern；In the listen mode, touch pad controller TPC monitors or monitors the sense in touch pad TP
The capacitance answering electric capacity corresponding to electrode changes situation, judges that finger touches or close position with this, and finger
Touch gestures.
The touch pad TP of the embodiment of the present invention includes induction electrode, pcb board and device routing layer.Wherein, this sensing
Electrode is located at the upper surface of pcb board, and this device routing layer is located at the lower surface of pcb board.This device routing layer sets
It is equipped with touch pad controller TPC and connected many electrical interconnection lines.Touch pad controller TPC is by wherein one
Part is electrically interconnected line and connects this induction electrode, line is electrically interconnected by another part and connects application processor AP, passes through
Remainder is electrically interconnected line and connects power management chip PMIC, and i.e. touch pad controller TPC is by different electrical interconnections
Line is connected with induction electrode, application processor AP and power management chip PMIC respectively.This touch pad controller is
This induction electrode provides the signal of telecommunication, and monitors or monitor finger in this induction electrode and touch or corresponding to close each region
The electric capacity knots modification of electric capacity and the change order of maximum capacitor knots modification thereof.May also include ground plane in touch pad, this connects
Stratum can invest outward outside above-mentioned device routing layer, thinks that induction electrode provides electric capacity to electrode.
In the embodiment of the present invention, above-mentioned connection application processor AP and the electrical interconnection line of touch pad controller TPC,
Near one end of application processor AP, metal finger can be connected, with by inserting mode easily by application processor
AP and touch pad controller TPC couples together.Similarly, above-mentioned connection power management chip PMIC and touch pad
The electrical interconnection line of controller TPC, in the one end near power management chip PMIC, it is possible to connect metal finger, with
Easily power management chip PMIC and touch pad controller TPC is coupled together by inserting mode.
In the embodiment of the present invention, induction electrode and device routing layer are respectively arranged on two outer surfaces of above-mentioned pcb board,
I.e. upper and lower surface, and this ground plane can invest outward this device routing layer side away from this pcb board.So
One, this pcb board only need to be designed to double-layer structure, and without the PCB in being designed to such as existing self-tolerant touch pad
The four-layer structure of plate, thus the self-tolerant touch pad of the embodiment of the present invention has the manufacturing process more simplified.
In the touch pad of the embodiment of the present invention, specially designed induction electrode is to be made up of multiple metal electrode arrangements.This gold
Belong to being shaped as rectangle and can being made by sheet metal of electrode.Metal electrode is by the way of being arranged in a line or multirow
Arrange, to carry out broadside, longitudinal induction.When metal electrode is arranged by the way of multirow by being arranged in, every row metal
The number of electrode can be identical, it is also possible to different.
Each metal electrode is connected with described touch pad controller by an electrical interconnection line in device routing layer respectively.
When finger touch or close above-mentioned metal electrode, corresponding to above-mentioned metal electrode, the capacitance of electric capacity changes.
In various embodiments, each metal electrode in induction electrode can be the combination of various sizes, spacing.
In one embodiment, adjacent metal electrode (includes in metal electrode adjacent in same a line and different rows adjacent
Metal electrode) between spacing equal, and the plurality of spacing can change in the range of 0.2～0.8mm.
In one embodiment, the adjacent spacing between metal electrode is equal, and all metal electrodes can have identical
Length and width size or its ratio, length and width dimension scale can be 7.2:4.3, and the present invention is not limited.
Total number of above-mentioned metal electrode also can have multiple choices, such as 8,16 or more, concrete number
Depending on the demand of visual bar shaped self-tolerant touch pad.
The longitudinal direction of the induction electrode of existing bar shaped self-tolerant touch pad at most arranges three row, and the touch of the embodiment of the present invention
The induction electrode of plate can pass through at longitudinally disposed multirow or adjust the longitudinally wide of metal electrode, regulates the vertical of touch pad
To sensing width, thus its induction electrode is longitudinally disposed more flexible, is suitable for the various of bar shaped self-tolerant touch pad
Change demand.
In one embodiment, when the metal electrode of rectangle is arranged by the way of multirow by being arranged in, every row metal electrode
Can have the spacing between same number, and adjacent metal electrode equal so that the rectangular knot of whole induction electrode
Structure.The number of metal electrode, size, arrangement etc. all can make adjustment in various degree, and concrete visual touch-control system needs
Depending on.
Certainly, for adapting to the shape requirements of bar shaped self-tolerant touch pad, or in order to reach other purposes, in induction electrode
Part metals electrode can be other shapes, such as triangle or parallelogram.In other words, induction electrode is not by
The metal electrode arrangements of similar shape forms.
In the embodiment of the present invention, finger determines electric capacity corresponding to metal electrode with the relative position of each metal electrode
Electric capacity knots modification.When finger touching or certain metal electrode close, each metal electrode and the constituted electric capacity of ground plane
Capacitance all change, and apart from touched or electric capacity knots modification near the nearest metal electrode of metal electrode more
Greatly.Application processor is by analyzing the knots modification and of electric capacity corresponding to each metal electrode of being recorded of touch pad controller
The change order of bulky capacitor knots modification, can learn the finger touching in induction electrode or close position and the touch of finger
Posture.
The advantage that the bar shaped self-tolerant touch pad of the present invention will be described with a specific embodiment below.It is embodied as at this
In example, induction electrode and device routing layer are respectively arranged on the upper and lower surface of pcb board.Gold in induction electrode
Genus electrode is of similar shape, size, and rectangle is lined up in alignment.The length and width size of metal electrode than for 7.2:4.3,
The spacing of adjacent metal electrode changes in the range of 0.2～0.8mm, and touch pad has and induction electrode matching size
The size closed.For making touch pad have bigger touch sensitivity and induction precision, it is preferred that be embodied as following
In example, the length and width of pcb board a size of 63mm × 10mm, the length and width of metal electrode a size of 7.2mm × 4.3mm,
The spacing of each adjacent metal electrode is 0.4mm.
Fig. 3 is the structural representation of the induction electrode of the touch pad of the embodiment of the present invention.As it is shown on figure 3, be located at PCB
The induction electrode 200 of plate upper surface includes 16 rectangular metal electrodes 201, and each metal electrode 201 has identical
Length and width size, 16 metal electrodes 201 are lined up two row, are made induction electrode 200 in elongated rectangular shape.
Fig. 4 is the structural representation of the embodiment of the present invention device routing layer corresponding with induction electrode in Fig. 3.Such as Fig. 4
Shown in, the device routing layer 300 being located at pcb board lower surface includes line 302 and touch pad controller 301 are electrically interconnected,
Wherein, 16 are electrically interconnected line 302 and respectively 16 metal electrodes 201 are electrically connected to touch pad controller 301, also
Have 8 line 302 is electrically interconnected to be drawn by touch pad controller 301 and extend respectively to be located at device routing layer 300 side
8 metal fingers 303, wherein, at least 4 metal fingers 303 are used for accessing application processor and (can connect and answer use
The I2C interface of reason device AP), at least 2 metal fingers 303 are used for accessing power management chip.In other embodiments
In, the number that line 302 and metal finger 303 are electrically interconnected can adjust, and the number of such as metal finger is at least 6
Individual.
It will be obvious to one with ordinary skill in the art that above-mentioned each electrical interconnection line, metal finger, the quantity of device, kind and position etc.
The description being not limited in above-described embodiment.
The induction electrode of embodiment of the present invention touch pad can only arrange a small amount of metal electrode, thus can save to walk in a large number
Line, and then a large amount of cabling space can be saved.
For comprising the bar shaped self-tolerant touch pad of device routing layer shown in induction electrode shown in Fig. 3 and Fig. 4, when it touches
When template controller is monitoring pattern, application processor is by receiving and analyzing the touch pad that touch pad controller is monitored
In capacitance change situation can get finger touch location and touch posture.
Specifically, such as, finger touching or a close metal electrode 201, during such as finger touches Fig. 3
No. 3 metal electrodes (numbering 3 in Fig. 3), 16 metal electrodes 201 and the capacitance of the constituted electric capacity of ground plane
All changing, wherein, the capacitance of No. 3 metal electrodes changes maximum, No. 3 metal electrodes of distance farthest 16
The capacitance of number metal electrode changes minimum, then application processor receives the above-mentioned electric capacity that touch pad controller is monitored
Amount change situation, can analyze and learn that finger has touched No. 3 metal electrodes.
The most such as, finger is touched simultaneously or near multiple metal electrodes 201, touches No. 3 in Fig. 3 the most simultaneously
With No. 4 metal electrodes, the contact area of finger and No. 3 and No. 4 metal electrodes is different, No. 3 and No. 4 metal electrodes
The electric capacity knots modification of corresponding electric capacity is the most different, and the electric capacity knots modification of such as No. 3 metal electrodes is relatively big, then application processes
Device touches No. 3 metal electrodes the position near No. 4 metal electrodes by analyzing finger knowable to electric capacity knots modification.
The most such as, finger touching or near induction electrode 200, and when slipping over a segment distance, such as finger linearly from
No. 3 metal electrodes in Fig. 3 slide to No. 7 metal electrodes, No. 3, No. 5, No. 7 metal electrodes there is maximum successively
Electric capacity knots modification, then application processor is by analyzing the change order of maximum capacitor knots modification, it is known that finger is from No. 3 gold
Belong to electrode and slide into No. 7 metal electrodes through No. 5 metal electrodes.In addition, other various touch gestures, such as
Double-click, long press, the most all can be changed by the electric capacity knots modification of metal electrode that touch pad controller is monitored and maximum capacitor
The change order analysis of variable is learnt.
The touch pad of the embodiment of the present invention only needs the pcb board of double-layer structure so that touch pad manufacturing cost significantly reduces,
It is applicable to the low cost requirement of wearable touch control device.Further, the touch pad of the embodiment of the present invention, because comprising especially
The induction electrode of design, when the diverse location of finger touching or close rectangular metal electrode therein, metal electrode institute
Corresponding electric capacity has identical electric capacity knots modification, capacitance linear change, can simplify the design of touch pad controller with this
Complexity, it is possible to decrease touch pad manufacturing cost and touch pad controller technology requirement, and this induction electrode is applicable to respectively
Plant self-tolerant touch pad, be particularly suited for bar shaped self-tolerant touch pad, bar shaped self-tolerant touch pad can be made to have various horizontal stroke
To, longitudinal size.Additionally, the induction electrode in existing bar shaped mutual capacitance type touch pad is by the cross point of rank scanning line
Constitute, and the induction electrode of the embodiment of the present invention is to be made up of the metal electrode of face structure, so the embodiment of the present invention can
To increase the contact area of finger and induction electrode, thus touch sensitivity and the precision of touch pad can be dramatically increased.
The touch-control system of the embodiment of the present invention can be various wearable touch control devices, because of the bar shaped containing low cost certainly
Appearance formula touch pad, and there is relatively low equipment totle drilling cost, the more market competitiveness.
Particular embodiments described above, has been carried out the purpose of the present invention, technical scheme and beneficial effect the most in detail
Describe in detail bright, be it should be understood that the specific embodiment that the foregoing is only the present invention, be not used to limit this
Bright protection domain, all within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. done,
Should be included within the scope of the present invention.
Claims (10)
1. a bar shaped self-tolerant touch pad, it is characterised in that described touch pad includes: induction electrode, pcb board
And device routing layer, wherein, described induction electrode is located at the upper surface of described pcb board, and described device routing layer sets
Touch pad controller and many first electrical interconnections it are provided with in the lower surface of described pcb board, described device routing layer
Line, described touch pad controller is electrically interconnected line by described first and connects described induction electrode, carries for described induction electrode
Power supply signal, and monitor finger in described induction electrode and touch or the electric capacity knots modification of electric capacity corresponding to close each region
And the change order of maximum capacitor knots modification.
2. bar shaped self-tolerant touch pad as claimed in claim 1, it is characterised in that described induction electrode includes:
The metal electrode of at least two rectangle, described metal electrode arrangements becomes at least a line；Each described metal electrode leads to respectively
Cross one first electrical interconnection line to be connected with described touch pad controller；When finger touch or close described metal electrode,
Corresponding to described metal electrode, the capacitance of electric capacity changes.
3. bar shaped self-tolerant touch pad as claimed in claim 2, it is characterised in that between adjacent metal electrode
Spacing equal.
4. bar shaped self-tolerant touch pad as claimed in claim 3, it is characterised in that the length and width of described metal electrode
Dimension scale is 7.2:4.3, and described spacing is 0.2～0.8mm.
5. bar shaped self-tolerant touch pad as claimed in claim 4, it is characterised in that the number of described metal electrode
It is 16, lines up two row, make described induction electrode in rectangular configuration.
6. bar shaped self-tolerant touch pad as claimed in claim 5, it is characterised in that the length and width of described metal electrode
A size of 7.2mm × 4.3mm, described spacing is 0.4mm, and the length and width of described pcb board a size of 63mm
×10mm。
7. the bar shaped self-tolerant touch pad as described in any one of claim 1 to 6, it is characterised in that described touch
Plate also includes: many second are electrically interconnected line, described touch pad controller draw, and part described second is electrically interconnected line even
Connecing an application processor, described in another part, the second electrical interconnection line connects a power management chip, described application processor
It is connected with described power management chip.
8. bar shaped self-tolerant touch pad as claimed in claim 7, it is characterised in that every described second is electrically interconnected
Line connects metal finger respectively, and part described second is electrically interconnected line and connects described application by connected described metal finger
Processor；Described in another part, second is electrically interconnected line by the connected described metal finger described power management core of connection
Sheet.
9. a touch-control system, it is characterised in that including: a bar shaped self-tolerant touch pad, an application processor and
One power management chip；Wherein,
Described bar shaped self-tolerant touch pad includes: induction electrode, pcb board, device routing layer；Described induction electrode
Being located at the upper surface of described pcb board, described device routing layer is located at the lower surface of described pcb board, and described device is walked
Line layer is provided with touch pad controller, many first electrical interconnection lines and many second lines are electrically interconnected；Described touch pad control
Device processed is electrically interconnected line by described first and connects described induction electrode, provides the signal of telecommunication for described induction electrode, and monitors
In described induction electrode, finger touches or electric capacity knots modification and the maximum capacitor thereof of electric capacity corresponding to close each region change
The change order of variable；
Described touch pad controller is electrically interconnected line by part described second and connects described application processor, and by another
Part described second is electrically interconnected line and connects described power management chip, described application processor and described power management chip
It is connected；It is that described touch pad controller is powered that described application processor is used for controlling described power management chip, described
Application processor is additionally operable to initialize described touch pad controller.
10. touch-control system as claimed in claim 9, it is characterised in that described induction electrode includes: at least two
The metal electrode of rectangle, described metal electrode arrangements becomes at least a line, and the adjacent spacing between metal electrode is equal；
Each described metal electrode is electrically interconnected line by one first respectively and is connected with described touch pad controller；When finger touches
Or when described metal electrode, corresponding to described metal electrode, the capacitance of electric capacity changes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510148576.7A CN106155430A (en) | 2015-03-31 | 2015-03-31 | Bar shaped self-tolerant touch pad and touch-control system |
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| CN201510148576.7A CN106155430A (en) | 2015-03-31 | 2015-03-31 | Bar shaped self-tolerant touch pad and touch-control system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108768373A (en) * | 2018-07-03 | 2018-11-06 | 珠海进田电子科技有限公司 | A kind of novel line control machine of gesture control |
| WO2020056600A1 (en) * | 2018-09-18 | 2020-03-26 | 深圳市汇顶科技股份有限公司 | Touch assembly, apparatus, and touch method |
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