CN107957804A - Three-dimensional touch device - Google Patents
Three-dimensional touch device Download PDFInfo
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- CN107957804A CN107957804A CN201611077961.8A CN201611077961A CN107957804A CN 107957804 A CN107957804 A CN 107957804A CN 201611077961 A CN201611077961 A CN 201611077961A CN 107957804 A CN107957804 A CN 107957804A
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- Prior art keywords
- touch
- capacitive sensing
- sensing amount
- controller
- initialization
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- 238000001514 detection method Methods 0.000 claims abstract description 14
- 230000006870 function Effects 0.000 claims description 20
- 230000008859 change Effects 0.000 claims description 12
- 238000012417 linear regression Methods 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 abstract description 11
- 230000006698 induction Effects 0.000 abstract 5
- 238000010586 diagram Methods 0.000 description 9
- 101100109978 Arabidopsis thaliana ARP3 gene Proteins 0.000 description 3
- 101100427547 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) ULS1 gene Proteins 0.000 description 3
- 239000013256 coordination polymer Substances 0.000 description 3
- 101150117607 dis1 gene Proteins 0.000 description 3
- 101000869912 Cerastes vipera Disintegrin CV-11-alpha Proteins 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- G06F3/041—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
- G06F2203/04101—2.5D-digitiser, i.e. digitiser detecting the X/Y position of the input means, finger or stylus, also when it does not touch, but is proximate to the digitiser's interaction surface and also measures the distance of the input means within a short range in the Z direction, possibly with a separate measurement setup
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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)
- Position Input By Displaying (AREA)
Abstract
The invention relates to a three-dimensional touch device which comprises a touch panel and a controller. The touch panel receives a plurality of initialization touch actions respectively performed according to a plurality of touch pressures in an initialization period, wherein each initialization touch action enables a touch medium to contact the touch panel along a moving direction according to each touch pressure. The controller is used for: in the initialization period, detecting a plurality of capacitance induction quantities respectively generated at a plurality of positions in the moving direction corresponding to each initialization touch action; performing multiple nonlinear regression operation according to the capacitance induction quantity to obtain multiple regression parameters; and during the actual detection period, receiving the actual touch action and obtaining the detected capacitance induction quantity, adjusting the detected capacitance induction quantity according to the regression parameter, and obtaining a touch area signal. According to the invention, the misjudgment phenomenon of the touch pressure judged by the compensated capacitance induction quantity can be reduced, and the accuracy of touch detection can be improved.
Description
Technical field
The present invention relates to a kind of three-dimensional touch device, and more particularly to it is a kind of can accurate judgement touch-control pressure three-dimensional touch
Device.
Background technology
With the progress of electronics technology, electronic product is into indispensable essential tool in for people's lives.Now
In electronic product, in order to lift the convenience of operation interface, accurate and sensitive operation interface is then suggested, for example, touch-control
Panel.
Contact panel is often formed using capacitive touch control plate.Wherein, when touch medium touches contact panel, pass through
The capacitive sensing amount on contact panel is detected, can know the information of touch-control.In application now, touch medium grants touch-control
The pressure of panel can also become a kind of effective manipulation information.Typically, it is applied to by touch medium on contact panel
Pressure size, can be directly proportional to caused capacitive sensing amount on contact panel.
Fig. 1 is refer to, Fig. 1 shows position of touch, touch-control pressure and the capacitive sensing in the prior art on contact panel
The graph of a relation of amount.Wherein, curve 101~105 corresponds to respectively applies different size of touch-control pressure (curve 101 on contact panel
Corresponding maximum touch-control pressure, the then corresponding minimum touch-control pressure of curve 105), and curve 101~105 represent respectively position of touch with
And the graph of a relation of capacitive sensing amount.In Fig. 1 it can be found that capacitive sensing amount TV may correspond to the more of curve 104 and 105
A position.If that is, judging touch-control pressure only in accordance with capacitive sensing amount TV, the phenomenon of erroneous judgement may be produced.
The content of the invention
The present invention provides a kind of three-dimensional touch device, can more accurately detect the pressure size of touch.
The three-dimensional touch device of the present invention includes contact panel and controller.Contact panel is received in initialization period to be divided
The multiple initialization touches not carried out according to multiple touch-control pressure, wherein, each touch that initializes makes touch medium
According to each touch-control pressure contact panel is contacted along moving direction.Controller couples the contact panel, and to：In initialization period
In, detect and receive the multiple capacitance senses produced respectively on the multiple positions of corresponding each initialization touch in the direction of movement
Ying Liang；In initialization period, according to each position of corresponding each touch-control pressure and each capacitive sensing amount of corresponding each position with
Multiple Non Linear Regression computing is carried out to obtain multiple regression parameters；And it is interim when actually detected, detection contact panel connects
Receive actual touch and obtain detection capacitive sensing amount, adjust the detection capacitive sensing amount according to regression parameter and compensated
Capacitive sensing amount is detected afterwards, and according to the touch-control area letter that the actual touch generation of capacitive sensing amount acquisition is detected after compensation
Number.
In one embodiment of this invention, above-mentioned controller according to each position for corresponding to each touch-control pressure and corresponds to each
Respectively capacitive sensing amount of position to establish non-linear multinomial function, wherein, regression parameter is respectively in non-linear multinomial function
Gain parameter in multiple subitems time.
In one embodiment of this invention, above-mentioned non-linear multinomial function is E '=f (x, E)=a0+a1x+a2E+a3xE
+a4x2+a5E2, E ' is detection capacitive sensing amount, a after the compensation0-a5For the multiple regression parameter, x is respectively the position, E are each
The capacitive sensing amount.
In one embodiment of this invention, above-mentioned controller calculates the capacitance change in the regional extent of each position
With with each capacitive sensing amount of the corresponding each position of acquisition.
In one embodiment of this invention, three-dimensional touch device further includes wave filter.Wave filter couples the controller, for
Touch-control area of signal is filtered reports point result to produce.
In one embodiment of this invention, above-mentioned touch medium is with bendable written stylus.
In one embodiment of this invention, three-dimensional touch device further includes memory.Memory couples controller, to store up
Deposit regression parameter.
In one embodiment of this invention, above-mentioned controller includes computing circuit and analogy digital conversion circuit.Fortune
Circuit is calculated to carry out Multiple Non Linear Regression computing to obtain regression parameter.Analogy digital conversion circuit couples contact panel,
According to the capacitance variations on contact panel to produce capacitive sensing amount.
In one embodiment of this invention, above-mentioned each capacitive sensing amount with the size of corresponding each touch-control pressure into just
Than.
In one embodiment of this invention, above-mentioned controller is more to calculate the saturation value of capacitive sensing amount, and be directed to
Capacitive sensing amount carries out regular computing according to saturation value.
, can be by controller with according to different touch-control pressure based on a kind of above-mentioned, three-dimensional touch device of present invention proposition
Caused multiple capacitive sensing values are handled on different multiple positions.By the computing of Multiple Non Linear Regression, touch
The multiple capacitive sensing values produced on control panel can clearly be differentiated, correctly be detected caused by actual touch
Touch-control area of signal.
To make the foregoing features and advantages of the present invention clearer and more comprehensible, special embodiment below, and it is detailed to coordinate attached drawing to make
Carefully it is described as follows.
Brief description of the drawings
Fig. 1 shows the graph of a relation of position of touch in the prior art on contact panel, touch-control pressure and capacitive sensing amount.
Fig. 2 shows the schematic diagram of the three-dimensional touch device of one embodiment of the invention.
Fig. 3 shows the touch-control area change schematic diagram of the embodiment of the present invention.
Fig. 4 shows the schematic diagram of the acquisition pattern of the capacitive sensing amount of the embodiment of the present invention.
Fig. 5 shows to detect the graph of a relation of capacitive sensing amount, position and touch-control pressure after the compensation of the embodiment of the present invention.
Fig. 6 shows the three-dimensional relationship figure of capacitive sensing amount and position after the capacitive sensing amount of the embodiment of the present invention, compensation.
Fig. 7 shows that the embodiment of the present invention calculates the schematic diagram of the saturation value of capacitive sensing amount.
Fig. 8 shows the schematic diagram of the three-dimensional touch device of another embodiment of the present invention.
Drawing reference numeral：
101~105,501~505：Curve；
TV：Capacitive sensing amount；
200、800：Three-dimensional touch device；
210、810：Controller；
220、820：Contact panel；
D1：Moving direction；
TP：Touch medium；
M1、M2、M3：Touch trajectory；
DIS1：Relative position relation；
P1、P5、CP：Position；
A1、A5：Touch-control area；
CV11~CV33：Capacitance change；
THP：Critical pressure value；
SV：Saturation value；
811：Computing circuit；
812：Digital circuit is changed in analogy；
813：Memory.
Embodiment
Fig. 2 is refer to, Fig. 2 shows the schematic diagram of the three-dimensional touch device of one embodiment of the invention.Three-dimensional touch device 200
Including controller 210 and contact panel 220.Contact panel 220 can be received respectively according to multiple touch-controls in an initialization period
Multiple initialization touches that pressure is carried out.Wherein, respectively initialization touch makes touch medium TP according to each touch-control pressure
Power contacts contact panel 220 along moving direction D1.It is specifically bright, in initialization period, touch medium (such as stylus)
TP can perform multiple touches respectively according to multiple and different pressure to contact panel 220 respectively.Wherein, when with opposite
The initialization touch that big touch-control pressure is carried out can form the touch-control with larger touch-control area on contact panel 220
Track (such as touch trajectory M2, M3), and when the initialization touch carried out with relatively small touch-control pressure can touch
Control and the touch trajectory (such as touch trajectory M1) with smaller touch-control area is formed on panel 220.
On the other hand, in initialization period, controller 210, which can detect and receive corresponding each initialization touch, to exist
The multiple capacitive sensing amounts produced respectively on multiple positions on the moving direction, also, according to each of each touch-control pressure of correspondence
Each capacitive sensing amount of position and corresponding each position obtains multiple regression parameters to carry out a Multiple Non Linear Regression computing.
The acquisition pattern of execution details and regression parameter below for Multiple Non Linear Regression computing is specifically described.
Below referring to Fig. 1 and Fig. 3, wherein, Fig. 3 shows the touch-control area change signal of the embodiment of the present invention
Figure.In figure 3, touch medium TP is the bendable stylus of a tool elasticity.Touch medium TP can by varying with contact panel
220 relative position relation DIS1 applies contact panel 220 different touch-control pressure.In figure 3, by varying touch-control matchmaker
Jie TP can be by varying the relative position relation DIS1 with contact panel 220, and the position of contact panel 220 is changed to position
P1 can make touch medium TP produce touch-control area A1 on contact panel 220.And by increasing touch-control pressure, make contact panel
220 position changes to position P5, then touch medium TP can be made to produce touch-control area A5 on contact panel 220, wherein, touch-control
Area A1 is less than touch-control area A5.
Then then referring to Fig. 1 and Fig. 4, wherein, Fig. 4 shows the acquisition of the capacitive sensing amount of the embodiment of the present invention
The schematic diagram of mode.Wherein, when touch medium TP touches the position CP of contact panel 220, controller 210 can be calculated and touched
Touch capacitance change (CV11~CV33) and with the corresponding each position CP of acquisition the capacitance sense in a regional extent of position CP
Ying Liang.Here, the size of regional extent can be according to the specification of touch medium TP and contact panel 220, and corresponding electronics
The demand of product is set, and the regional extent shown in Fig. 4 is merely illustrative example, not limiting scope of the invention.
Please referring again to Fig. 2, controller 210 can establish a non-linear multinomial function, this non-linear multinomial function can be used
To calculate detection capacitive sensing amount after compensation.And this non-linear multinomial function includes position and the capacitance of contact panel 220
The parameters such as sensing amount.This non-linear multinomial function can be expressed as function (1)：
E '=f (x, E)=a0+a1x+a2E+a3xE+a4x2+a5E2 (1)
Wherein, E ' is detection capacitive sensing amount, a after the compensation0-a5For the regression parameter in non-linear multinomial function, x is
Position, E are corresponding capacitive sensing amount.
It is noted that above-mentioned function (1) only demonstration example, designer can change function (1) for binary three times or
The function of four inferior different types of binary, and so as to obtaining more accurate result of calculation.
Controller 210 obtains initialization touch and divides on multiple positions of contact panel 220 in initialization period
After the multiple capacitive sensing amounts not produced, it can come according to the multiple capacitive sensing amounts obtained more to carry out by function (1)
First nonlinear regression computing, and so as to calculating the regression parameter a in non-linear multinomial function0-a5.And complete initialization period
In performed initialization action.
Obtaining regression parameter a0-a5Afterwards, three-dimensional touch device 200 can perform actual touch control detection action.Also,
Actually detected period, controller 210 can detect the actual touch that contact panel 220 is received and obtain a detection capacitance sense
Ying Liang.Also, controller 210 can come according to function (1) and the position of the detection capacitive sensing amount obtained and touch point
Capacitive sensing amount is detected after calculating compensation.
It refer to Fig. 5 and Fig. 6 below, wherein, Fig. 5 detects capacitive sensing amount, position after showing the compensation of the embodiment of the present invention
Put and the graph of a relation of touch-control pressure, and Fig. 6 show after the capacitive sensing amount of the embodiment of the present invention, compensation capacitive sensing amount and
The three-dimensional relationship figure of position.And by Fig. 5, Fig. 6 it can be found that capacitive sensing amount can occur on two curves after single compensation
Situation can effectively be lowered, that is to say, that by detecting the judgement for the touch-control pressure that capacitive sensing amount carries out after compensation,
It is judged possibility by accident and can significantly be lowered.
It refer to Fig. 7 below, Fig. 7 shows that the embodiment of the present invention calculates the schematic diagram of the saturation value of capacitive sensing amount.Wherein,
Controller 210 can calculate capacitive sensing amount and calculated with the variable condition of touch-control pressure the saturation value of capacitive sensing amount.In Fig. 7
In, when touch-control pressure is less than critical pressure value THP, capacitive sensing amount almost linearly changes with the change of touch-control pressure.
After touch-control pressure is more than critical pressure value THP, the intensity of variation of capacitive sensing amount is reduced slowly, and levels off to saturation value SV.
This, controller 210 can be after touch-control pressure be more than critical pressure value THP, by produced by calculating each touch-control pressure change
The change dV of corresponding capacitive sensing amount carry out saturation value SV.Wherein, controller 210 can capacitive sensing amount change dV it is small
When a preset value, capacitive sensing amount at that time is recorded with as saturation value SV.
After saturation value SV is calculated, controller 210 can make function (1) carry out regular adjustment according to saturation value SV,
And so as to producing function (2)：
E '=f (x, E)=a0+a1x+a2E/SV+a3xE/SV+a4x2+a5(E/SV)2 (2)。
By above-mentioned normalized action, the calculation amount of the Multiple Non Linear Regression computing to be carried out of controller 210 can
To be simplified.
It refer to Fig. 8 below, Fig. 8 shows the schematic diagram of the three-dimensional touch device of another embodiment of the present invention.Three-dimensional touch
Device 800 includes controller 810, contact panel 820 and memory 813.Controller 810 then include computing circuit 811 and
Digital circuit 812 is changed in analogy.Analogy conversion digital circuit 812 can receive the capacitance variations state on contact panel 820, and will
Capacitive sensing amount of the capacitance variations State Transferring of analogy pattern into digital forms.Computing circuit 811 then can be when actually detected
Phase compensates the calculating of rear capacitive sensing amount according to capacitive sensing amount, or is carried out in initialization period according to capacitive sensing amount
The calculating of regression parameter.In addition, the regression parameter calculated can be stored in memory 811 by controller 810.
Be worth mentioning, controller 810 can when necessary after start the progress of initialization action.For example, new
Contact panel when being imported into product, alternatively, when contact panel 820 produce because of long-term work or the change of environment it is tactile
Governor pressure judge on error when, controller 810 can restart the progress of initialization action according to external command.
In addition, the contact panel 820 of same type can apply identical regression parameter.Consequently, it is possible to regression parameter can be advance
It is stored in memory 813, and controller 810 can need not re-execute initialization action, and by directly reading storage
Regression parameter in device 813, and perform actual measurement action, it is possible to capacitive sensing amount after being compensated.
In conclusion the present invention calculates regression parameter by non-linear multiple regression computing, then by regression parameter with
And function is returned to calculate capacitive sensing amount after compensation.Consequently, it is possible to touched by what capacitive sensing amount after compensation was judged
The misjudgment phenomenon of governor pressure can be lowered, and can improve the accuracy of touch control detection.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe is described in detail the present invention with reference to foregoing embodiments, it will be understood by those of ordinary skill in the art that：Its according to
Can so modify to the technical solution described in foregoing embodiments, either to which part or all technical characteristic into
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. a kind of three-dimensional touch device, including：
Contact panel, the multiple initialization touches carried out respectively according to multiple touch-control pressure are received in initialization period,
Wherein each initialization touch makes touch medium contact the touch surface along moving direction according to each touch-control pressure
Plate；And
Controller, couples the contact panel, the controller to：
In the initialization period, detect and to receive corresponding each initialization touch more on the moving direction
The multiple capacitive sensing amounts produced respectively on a position；
In the initialization period, according to each position for corresponding to each touch-control pressure and each position is corresponded to
Each capacitive sensing amount obtains multiple regression parameters to carry out Multiple Non Linear Regression computing；And
It is interim when actually detected, detect the contact panel and receive actual touch and obtain and detect capacitive sensing amount, according to
Capacitive sensing amount is detected according to the multiple regression parameter adjustment detection capacitive sensing amount and after obtaining a compensation, and according to institute
The touch-control area of signal that capacitive sensing amount obtains the actual touch generation is detected after stating compensation.
2. three-dimensional touch device according to claim 1, wherein the controller is according to corresponding each touch-control pressure
Each capacitive sensing amount of each position and corresponding each position is to establish non-linear multinomial function, wherein described more
A regression parameter is respectively the gain parameter in multiple subitems time in the non-linear multinomial function.
3. three-dimensional touch device according to claim 2, wherein the non-linear multinomial function is：
E '=f (x, E)=a0+a1x+a2E+a3xE+a4x2+a5E2,
Wherein, E ' is detection capacitive sensing amount, a after the compensation0-a5For the multiple regression parameter, x is each position, E
For each capacitive sensing amount.
4. three-dimensional touch device according to claim 1, wherein the controller calculates the regional extent of each position
In it is capacitance change and to obtain each capacitive sensing amount of corresponding each position.
5. three-dimensional touch device according to claim 1, wherein further including：
Wave filter, couples the controller, is filtered for the touch-control area of signal and reports point result to produce.
6. three-dimensional touch device according to claim 1, wherein the touch medium is with bendable written touch-control
Pen.
7. three-dimensional touch device according to claim 1, wherein further including：
Memory, couples the controller, stores the multiple regression parameter.
8. three-dimensional touch device according to claim 1, wherein the controller includes：
Computing circuit, to carry out the Multiple Non Linear Regression computing to obtain the multiple regression parameter；And
Analogy digital conversion circuit, couples the contact panel, described to produce according to the capacitance variations on the contact panel
Multiple capacitive sensing amounts.
9. three-dimensional touch device according to claim 1, wherein each capacitive sensing amount and corresponding each touch-control
The size of pressure is directly proportional.
10. three-dimensional touch device according to claim 1, wherein the controller more to：
The saturation value of the multiple capacitive sensing amount is calculated, and is carried out for the multiple capacitive sensing amount according to the saturation value
Regular computing.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW105215607 | 2016-10-14 | ||
| TW105215607U TWM537259U (en) | 2016-10-14 | 2016-10-14 | Three dimensional touch control apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107957804A true CN107957804A (en) | 2018-04-24 |
Family
ID=58608107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611077961.8A Pending CN107957804A (en) | 2016-10-14 | 2016-11-30 | Three-dimensional touch device |
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| Country | Link |
|---|---|
| CN (1) | CN107957804A (en) |
| TW (1) | TWM537259U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021223447A1 (en) * | 2020-05-06 | 2021-11-11 | 北京集创北方科技股份有限公司 | Method and apparatus for adjusting touch capacitance data, and electronic device, and storage medium |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109117014B (en) * | 2017-06-26 | 2022-05-10 | 敦泰电子有限公司 | Pressure correction method and system for capacitive pressure sensing panel |
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| CN103092421A (en) * | 2013-01-28 | 2013-05-08 | 苏州瀚瑞微电子有限公司 | Method of touch panel linear error correcting |
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| CN105224132A (en) * | 2015-10-08 | 2016-01-06 | 广东欧珀移动通信有限公司 | A kind of calibration steps of pressure transducer and device |
| US20160070414A1 (en) * | 2014-09-05 | 2016-03-10 | Apple Inc. | Electronic Devices With Replaceable Subassemblies |
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2016
- 2016-10-14 TW TW105215607U patent/TWM537259U/en not_active IP Right Cessation
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| CN104246669A (en) * | 2012-03-13 | 2014-12-24 | 纳米技术方案公司 | Method of capacitive measurement by nonregular electrodes, and apparatus implementing such a method |
| CN103092421A (en) * | 2013-01-28 | 2013-05-08 | 苏州瀚瑞微电子有限公司 | Method of touch panel linear error correcting |
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| US20160070414A1 (en) * | 2014-09-05 | 2016-03-10 | Apple Inc. | Electronic Devices With Replaceable Subassemblies |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021223447A1 (en) * | 2020-05-06 | 2021-11-11 | 北京集创北方科技股份有限公司 | Method and apparatus for adjusting touch capacitance data, and electronic device, and storage medium |
| US11966539B2 (en) | 2020-05-06 | 2024-04-23 | Chipone Technology (Beijing) Co., Ltd. | Method and device for adjusting touch capacitance data, electronic device, and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| TWM537259U (en) | 2017-02-21 |
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Application publication date: 20180424 |