CN106990872A - The vibrational feedback device and driving method of a kind of pressure touch - Google Patents
The vibrational feedback device and driving method of a kind of pressure touch Download PDFInfo
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- CN106990872A CN106990872A CN201710374320.7A CN201710374320A CN106990872A CN 106990872 A CN106990872 A CN 106990872A CN 201710374320 A CN201710374320 A CN 201710374320A CN 106990872 A CN106990872 A CN 106990872A
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- pressure
- module
- vibrational feedback
- microcontroller
- touch
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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
- G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
-
- 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
- G06F3/016—Input arrangements with force or tactile feedback as computer generated output to the user
Abstract
The present invention relates to the vibrational feedback device of pressure touch, the pressure sensor module and vibrational feedback module being connected including microcontroller, with the micro-controller communications, the microcontroller includes judge module, computing module and AD conversion module, and the vibrational feedback module receives the corresponding shockproofness of instruction feedback of judge module.The vibrational feedback driving method of pressure touch of the present invention, including pressure touch operation of the user to terminal is received, pressure signal value is calculated according to the miniature deformation gauge of pressure touch device, corresponding vibrational feedback intensity is determined according to pressure signal value.Thus, the vibrating effect of the pressure touch operational feedback varying strength acted on by user in terminal, the present invention makes user have intuitively quantization cognitive to the touch-control pressure size of oneself, on the one hand it will be seen that user and improve the touch control operation of oneself, on the other hand the pressure touch Quantitative System based on user behavior can also be set up, with good man-machine interaction effect.
Description
Technical field
The invention belongs to field of terminal technology, more particularly to a kind of vibrational feedback device of pressure touch and its driving side
Method.
Background technology
Pressure touch technology refers to increase the third dimension on the basis of existing touch product plane operation, i.e., to pressing
Dynamics is perceived, dubbed, flicking, again by the action feedback of three layers of dimension.Touch-control interaction can so be allowed from long-press
" time " dimension extends to " dynamics " dimension of weight, is that man-machine interaction has opened brand-new space, realizes different applications.
Pressure touch brings the change of maximum to be exactly to make touch-control product operation more simple, passes through multiple small electrics around touch-control product
Pole, perceives user through touching, and touches again and waits operation, and different operation reactions can be achieved.
At present, the stage is just being risen in pressure touch technical office, and specific Quantitative System has not yet been formed.Usual user to by
Surging is not known about simultaneously with feedback is touched, and easily due to pressing, dynamics size is inappropriate to cause maloperation phenomenon for appearance.Also,
In practical operation, user is operated using self usual pressure size, if now and need not send pressure touch, due to
User is to the feedback result of pressure touch and does not know about, and will also result in maloperation.
In view of above-mentioned defect, the design people is actively subject to research and innovation, anti-to found a kind of new pressure touch
Device and driving method are presented, can quantify the pressure that user is perceived in oneself pressing touch control operation, make it with more in industry
Value.
The content of the invention
In order to solve the above technical problems, the purpose of the present invention is to propose to pressure touch feedback device and driving method, passing through
The pressure touch for obtaining user carrys out vibrational feedback intensity, user is had the cognition quantified, one to the touch-control pressure size of oneself
Aspect will be seen that and improve the touch control operation of oneself, on the other hand can also set up the pressure touch based on user behavior and quantify
System, optimizes user experience sense.Technical solution of the present invention is as follows：
One of the object of the invention, a kind of vibrational feedback device of pressure touch, including microcontroller and the microcontroller
The pressure sensor module and vibrational feedback module of communication connection, wherein, the microcontroller includes judge module, computing module
And AD conversion module, AD conversion module and pressure sensor module communication connection, computing module and AD conversion module communication connection,
Judge module is communicated to connect with computing module, and the corresponding vibrations of instruction feedback that the vibrational feedback module receives judge module are strong
Degree.
The vibrational feedback device of pressure touch of the present invention, further, in the pressure sensor module and microcontroller
Between be provided with amplification circuit module, the amplification circuit module is connected with pressure sensor module, micro-controller communications, puts respectively
The pressure signal of big circuit module amplification pressure sensor module collection, and the pressure signal after amplification is sent to microcontroller
AD conversion module.
The vibrational feedback device of pressure touch of the present invention, further, in addition to carries out power management to microcontroller
Power management module, the power management module is connected with micro-controller communications.
The two of the object of the invention, the driving method of the vibrational feedback device of pressure touch, comprise the steps,
The extraneous deformation quantity of pressure sensor module sensing, exports corresponding pressure sensitive signal；
Amplification circuit module carries out the pressure sensitive signal received the enhanced processing of corresponding multiple；
Pressure signal after AD conversion module in microcontroller handles amplification circuit module is converted into 1024 rank pressure
Data signal；
Pressure on the number signal after computing module in microcontroller is changed to AD conversion module is filtered algorithm process,
Obtain steady pressure data signal.
Judge module in microcontroller judges that the steady pressure data signal correspondence that the computing module is got is residing
Preset pressure it is interval.
The preset pressure interval that vibrational feedback module judges according to the judge module determines vibrational feedback intensity.
Driving method of the present invention, further, the preset pressure are interval, are divided into light press A, flicking according to pressure size
B is pressed, A is normally pressed, normally press B, again pressing A and presses six pressure ranges of B again.
Driving method of the present invention, further, the pressure are divided into 1024 rank pressure on the number signals, set 0~100 rank
For light press A areas, 100~200 ranks are light press B areas, and 200~400 ranks are normal pressing A areas, and 400~600 ranks are normally to press
B areas are pressed, 600~800 ranks, which are attached most importance to, presses A areas, and 800~1024 ranks, which are attached most importance to, presses B areas.
Driving method of the present invention, further, vibrating mode and its driving voltage and the driving of the vibrational feedback module
The drive waveforms that time produces are corresponding.
Driving method of the present invention, further, the vibrational feedback module is according to presetting that the judge module judges
Pressure range determines vibrational feedback intensity.
Driving method of the present invention, further, the computing module is to the pressure on the number signal after AD conversion module conversion
It is filtered algorithm process.
By such scheme, the present invention at least has advantages below：
1. the shockproofness effect of pressure touch operational feedback varying strength that the present invention is acted in terminal by user,
User is had the touch-control pressure size of oneself and intuitively quantify cognition, on the one hand will be seen that user and improve oneself
Touch control operation, on the other hand can also set up the pressure touch Quantitative System based on user behavior；
2. user of the present invention sets pressure range adjustable, and then realizes the free switching of vibrational feedback intensity and effect, uses
Family experience human-computer interaction effect is good.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, below with presently preferred embodiments of the present invention and coordinate accompanying drawing describe in detail as after.
Brief description of the drawings
Fig. 1 is the schematic block diagram of the vibrational feedback device of pressure touch of the present invention；
Fig. 2 is that the touch-control pressure of the vibrational feedback device of pressure touch of the present invention shows interval diagram；
Fig. 3 is the schematic diagram of the driving method of the vibrational feedback device of pressure touch of the present invention；
Fig. 4 is the vibrating effect schematic diagram of the vibrational feedback device of pressure touch of the present invention.
The implication of each reference is as follows in figure.
The amplification circuit module of 100 microcontroller 101
The vibrational feedback module of 102 pressure sensor module 103
The judge module of 104 power management module 1001
The AD conversion module of 1002 computing module 1003
Embodiment
With reference to the accompanying drawings and examples, the embodiment to the present invention is described in further detail.Implement below
Example is used to illustrate the present invention, but is not limited to the scope of the present invention.
As shown in figure 1, the vibrational feedback device of pressure touch of the present invention, including microcontroller 100 and the microcontroller
The pressure sensor module 102 and vibrational feedback module 103 of 100 communication connections.The microcontroller 100 includes judge module
1001st, computing module 1002 and AD conversion module 1003, AD conversion module 1003 are communicated to connect with pressure sensor module 102,
Computing module 1002 is communicated to connect with AD conversion module 1003, and judge module 1001 is communicated to connect with computing module 1002, described
Vibrational feedback module 103 receives the corresponding shockproofness of instruction feedback of judge module 1001.The present invention is acted on by user
The shockproofness effect of pressure touch operational feedback varying strength in terminal, makes user have the touch-control pressure size of oneself
Intuitively quantify cognition, on the one hand will be seen that user and improve the touch control operation of oneself, on the other hand can also set up base
In the pressure touch Quantitative System of user behavior.
In order to further optimize the technology of the present invention effect, in one embodiment of the invention, in foregoing teachings
On the basis of, amplification circuit module 101, the amplification electricity are provided between the pressure sensor module 102 and microcontroller 100
Road module 101 is communicated to connect with pressure sensor module 102, microcontroller 100 respectively, the amplification pressure of amplification circuit module 101
The pressure signal that sensor assembly 102 is gathered, and the pressure signal after amplification is sent to the AD conversion module of microcontroller 100
1003.The setting of amplification circuit module 101, by weaker small-signal through triode, FET etc., obtains waveform similar but not
Distortion, but the big signal of the much larger exchange of amplitude.Client can adjust amplifying circuit multiple by upper computer software, be conducive to
Subsequent microcontroller 100 obtains steady pressure data signal and divides preset pressure interval.
In order to ensure the steady operation of microcontroller 100, in addition to the power supply pipe of power management is carried out to microcontroller 100
Module 104 is managed, the power management module 104 is communicated to connect with microcontroller 100.The power management module 104 be used for pair
Microcontroller 100 carry out power management, power supply is effectively distributed to the different components of system, be responsible for the conversion of electric energy, distribution,
Detection and the responsibility of other electric energy managements.
The above-mentioned computing module 1002 of the present invention is used for the pressure on the number signal after being changed to AD conversion module 1003, carries out special
Fixed filtering algorithm processing, obtains reliable and stable pressure on the number signal.Above-mentioned judge module 1001 is used to judge the calculating
The preset pressure residing for pressure value correspondence that module 1002 is got is interval.The vibrational feedback module 103 judges according to described
The preset pressure interval that module 1001 judges determines vibrational feedback intensity.According to the strong of preset pressure interval feedback vibrations
It is weak.Pressure size is divided into light press A, light press B, normally presses A, normally presses B, again pressing A and press six pressure areas of B again
Between.0~100 rank is set as light press A areas, 100~200 ranks are light press B areas, 200~400 ranks are normal pressing A areas, 400
~600 ranks are normal pressing B areas, and 600~800 ranks, which are attached most importance to, presses A areas.I.e. in 0~100 rank light press A area's internal feedbacks to user
Faint vibratory sensation, gives user lighter vibratory sensation, A is normally pressed in 200~400 ranks in 100~200 rank light press B area's internal feedbacks
Area feeds back to the light vibratory sensation of user, and normally pressing B areas in 400~600 ranks feeds back to the moderate vibratory sensation of user, in 600~800 ranks
Pressing A areas feed back to user's exacerbation vibratory sensation again, and pressing B areas again in 800~1024 ranks feeds back to user compared with macroseism innervation.
As collection user's operating pressure information pressure sensor module 102, the pressure sensor module 102 according to
The deformation quantity that family is acted on vibrational feedback device 1 exports corresponding pressure sensitive signal.The output pressure of pressure sensor module 102
The magnitude of voltage or current value of power induced signal increase with the increase of the deformation quantity, or pressure sensor module 102 is exported
Pressure sensitive signal magnitude of voltage or current value reduce with the reduction of the deformation quantity, realize that vibrational feedback intensity follows use
The dynamics of family pressure touch operation increases and strengthened, and the dynamics for following user's pressure touch to operate is reduced and reduced.Therefore, this hair
The shockproofness effect of the bright pressure touch operational feedback varying strength acted on by user in terminal, make user to oneself
Touch-control pressure size, which has, intuitively quantifies cognition.
As shown in figure 3, following vibrational feedback device operation principles to pressure touch of the present invention are illustrated, i.e., pressure is touched
The driving method of the vibrational feedback device of control：
S300, pressure sensor module 102 senses extraneous deformation quantity, exports corresponding pressure sensitive signal.
S301, amplification circuit module 101 carries out the pressure sensitive signal received the enhanced processing of corresponding multiple.
Pressure signal after AD conversion module 1003 in S302, microcontroller 100 handles amplification circuit module 101 turns
Change 1024 rank pressure on the number signals into.
Computing module 1002 in S303, microcontroller 100 is to the pressure on the number signal after the conversion of AD conversion module 1003
Algorithm process is filtered, steady pressure data signal is obtained.
Judge module 1001 in S304, microcontroller 100 judges the steady pressure that the computing module 1002 is got
The residing preset pressure of data signal correspondence is interval.The corresponding pressure pre-set interval of pressure value is obtained, is realized to preset pressure
The acquisition of interval corresponding vibrational feedback intensity, makes pressure touch operation of the user to oneself have the understanding quantified, so as to have
Helping user improves operating habit.
S305, the preset pressure interval that vibrational feedback module 103 judges according to the judge module 1001 determines that vibrations are anti-
Present intensity.
In order that user has to the touch-control pressure size of oneself, the quantization more refined is cognitive, and the preset pressure is interval,
Light press A, light press B are divided into according to pressure size, A is normally pressed, normally press B, again pressing A and presses six pressure of B again
It is interval.Preset pressure is interval, can be by terminal client according to the use habit collected with most of user of investigation, before dispatching from the factory
Default pressure range in system.It can also be the pressure range that user oneself is set before the use, can also be terminal system
It is, with custom, pressure touch operating habit of the user within a period of time to be collected, according to user's to unite according to user itself
It is interval with the preset pressure of custom that the generation of pressure touch information, which meets user oneself, and a use for meeting different user is needed
Ask, six intervals of preferably above-mentioned setting.Certainly, the interval setting of preset pressure can be than flicking, normal pressing, again by drawing
Divide and more refine, further to lift the experience of user.
The touch-control pressure of the vibrational feedback device of Fig. 2 pressure touchs of the present invention shows interval diagram.As shown in Fig. 2 Y side
To for vibrational feedback intensity, X-direction is pressure touch signal.The pressure is divided into 1024 rank pressure on the number signals, touch-control pressure
It will be parsed according to corresponding critical value.0~100 rank of preferred settings is light press A areas, and 100~200 ranks are light press B areas,
200~400 ranks are normally pressing A areas, and 400~600 ranks are normal pressing B areas, and 600~800 ranks, which are attached most importance to, presses A areas, 800~
1024 ranks, which are attached most importance to, presses B areas.1024 be the maximum touch-control pressure value that pressure touch vibrational feedback device can bear.In addition, working as
When pressure is normal pressing interval critical value, corresponding feedback information can be shown by normal pressing is interval.User can lead to
The maximum touch-control pressure that upper computer software sets the vibrational feedback device of pressure touch to recognize is crossed, maximum touch-control pressure can be solved
1024 rank data signals are analysed into, the sensitivity of the vibrational feedback device of pressure touch is greatly improved.
As shown in figure 4, the vibrating effect schematic diagram of the vibrational feedback device of pressure touch of the present invention.Y-direction is anti-for vibrations
The driving voltage of device is presented, X-direction is the driving time of vibrational feedback device.The vibrational feedback module 103 is sentenced according to described
The preset pressure interval that disconnected module 1001 judges determines that computing module 1002 is to AD conversion module 1003 described in vibrational feedback intensity
Pressure on the number signal after conversion is filtered algorithm process.Filtering algorithm is that the N (N spans 1~6) continuously obtained is individual
Sampled value is fixed as N (N spans 1~6), a new data is sampled every time and is put into as a queue, the length of queue
Tail of the queue, and a data (first in first out) of original head of the queue is thrown away, N in queue (N spans 1~6) individual data are entered
Row arithmetic average computing, obtains new filter result.Algorithm process is filtered to the pressure on the number signal after conversion, to the cycle
Property interference there is good inhibitory action, smoothness is high.Driving voltage waveform includes three parts：Over-drive voltage, driving keeps electricity
Pressure, brake voltage.The corresponding period is referred to as：The drive time is spent, driving retention time and braking time.Different driving voltages
And driving time, different drive waveforms, i.e., vibrating mode and its driving voltage of described vibrational feedback module 103 can be produced
Corresponding with the drive waveforms that driving time is produced, different drive waveforms bring different vibrational feedback effects to client.Fig. 4
Show the drive waveforms of the vibrational feedback effect of click.6 shock waves built in the vibrational feedback device of pressure touch of the present invention
Shocking waveshape in including 123 in shape storehouse, each storehouse, can meet the scene demand of client's different scenes.
By setting the haptic effect of vibrational feedback, to show the pressing situation of pressure touch, make user anti-according to vibrations
Feedback intensity has to the dynamics size of the touch control operation of oneself clearly to be quantified to understand, and user the very first time is obtained pressure touch
The feedback result of operation.On the one hand it will be seen that user and improve the touch control operation of oneself, on the other hand can also set up base
In the pressure touch Quantitative System of user behavior.Also, user of the present invention sets pressure range adjustable, and then realizes vibrational feedback
The free switching of intensity and effect, has the advantages that Consumer's Experience human-computer interaction effect is good.
Described above is only the preferred embodiment of the present invention, is not intended to limit the invention, it is noted that for this skill
For the those of ordinary skill in art field, without departing from the technical principles of the invention, can also make it is some improvement and
Modification, these improvement and modification also should be regarded as protection scope of the present invention.
Claims (9)
1. a kind of vibrational feedback device of pressure touch, it is characterised in that：Including microcontroller (100) and the microcontroller
(100) pressure sensor module (102) and vibrational feedback module (103) of communication connection, wherein, the microcontroller (100)
Including judge module (1001), computing module (1002) and AD conversion module (1003), AD conversion module (1003) is passed with pressure
Sensor module (102) is communicated to connect, and computing module (1002) is communicated to connect with AD conversion module (1003), judge module (1001)
Communicated to connect with computing module (1002), the vibrational feedback module (103) receives the instruction feedback phase of judge module (1001)
The shockproofness answered.
2. a kind of vibrational feedback device of pressure touch according to claim 1, it is characterised in that：In the pressure sensing
Amplification circuit module (101) is provided between device module (102) and microcontroller (100), the amplification circuit module (101) is respectively
Communicated to connect with pressure sensor module (102), microcontroller (100), amplification circuit module (101) amplification pressure sensor mould
The pressure signal of block (102) collection, and the pressure signal after amplification is sent to the AD conversion module of microcontroller (100)
(1003)。
3. a kind of vibrational feedback device of pressure touch according to claim 1, it is characterised in that：Also include to microcontroller
Device (100) carries out the power management module (104) of power management, and the power management module (104) is led to microcontroller (100)
Letter connection.
4. a kind of driving method of the vibrational feedback device of pressure touch, it is characterised in that：Comprise the steps,
The extraneous deformation quantity of pressure sensor module (102) sensing, exports corresponding pressure sensitive signal；
Amplification circuit module (101) carries out the pressure sensitive signal received the enhanced processing of corresponding multiple；
AD conversion module (1003) in microcontroller (100) changes the pressure signal after amplification circuit module (101) processing
Into 1024 rank pressure on the number signals；
Pressure on the number signal after computing module (1002) in microcontroller (100) is changed to AD conversion module (1003) is carried out
Filtering algorithm processing, obtains steady pressure data signal；
Judge module (1001) in microcontroller (100) judges the steady pressure numeral that the computing module (1002) is got
The residing preset pressure of signal correspondence is interval；
The preset pressure interval that vibrational feedback module (103) judges according to the judge module (1001) determines that vibrational feedback is strong
Degree.
5. a kind of driving method of the vibrational feedback device of pressure touch according to claim 4, it is characterised in that：It is described
Preset pressure is interval, is divided into light press A, normally light press B, pressing A, normally pressing B, again pressing A and again according to pressure size
Press six pressure ranges of B.
6. a kind of driving method of the vibrational feedback device of pressure touch according to claim 5, it is characterised in that：It is described
Pressure is divided into 1024 rank pressure on the number signals, sets 0~100 rank as light press A areas, and 100~200 ranks are light press B areas, 200
~400 ranks are normally pressing A areas, and 400~600 ranks are normal pressing B areas, and 600~800 ranks, which are attached most importance to, presses A areas, 800~1024
Rank, which is attached most importance to, presses B areas.
7. a kind of driving method of the vibrational feedback device of pressure touch according to claim 4, it is characterised in that：It is described
The vibrating mode of vibrational feedback module (103) is corresponding with the drive waveforms that its driving voltage and driving time are produced.
8. a kind of driving method of the vibrational feedback device of pressure touch according to claim 7, it is characterised in that：It is described
The preset pressure interval that vibrational feedback module (103) judges according to the judge module (1001) determines vibrational feedback intensity.
9. a kind of driving method of the vibrational feedback device of pressure touch according to claim 4, it is characterised in that：It is described
Pressure on the number signal after computing module (1002) is changed to AD conversion module (1003) is filtered algorithm process, the filtering
Algorithm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710374320.7A CN106990872A (en) | 2017-05-24 | 2017-05-24 | The vibrational feedback device and driving method of a kind of pressure touch |
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| CN201710374320.7A CN106990872A (en) | 2017-05-24 | 2017-05-24 | The vibrational feedback device and driving method of a kind of pressure touch |
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| CN201710374320.7A Pending CN106990872A (en) | 2017-05-24 | 2017-05-24 | The vibrational feedback device and driving method of a kind of pressure touch |
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Cited By (7)
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| CN107515675A (en) * | 2017-08-23 | 2017-12-26 | 业成科技（成都）有限公司 | Pressure feedback method and device, computer equipment and storage medium |
| CN107741787A (en) * | 2017-11-01 | 2018-02-27 | 珠海市魅族科技有限公司 | tactile feedback method, terminal and storage medium |
| CN108509079A (en) * | 2018-03-29 | 2018-09-07 | 北京小米移动软件有限公司 | Touch control component and electronic equipment including the touch control component |
| CN108741493A (en) * | 2018-05-06 | 2018-11-06 | 苏州蓝色弹珠智能科技有限公司 | Umbrella |
| CN108874138A (en) * | 2018-06-20 | 2018-11-23 | 珠海市魅族科技有限公司 | A kind of pressure feedback system, electronic equipment and pressure feedback method |
| CN110241547A (en) * | 2018-03-07 | 2019-09-17 | 青岛海尔滚筒洗衣机有限公司 | A kind of washing machine and control method with vibration function |
| CN113377241A (en) * | 2021-07-08 | 2021-09-10 | 深圳市优奕视界有限公司 | Display touch integrated chip for realizing human-computer interaction function |
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| CN107515675A (en) * | 2017-08-23 | 2017-12-26 | 业成科技（成都）有限公司 | Pressure feedback method and device, computer equipment and storage medium |
| CN107515675B (en) * | 2017-08-23 | 2020-09-15 | 业成科技（成都）有限公司 | Pressure feedback method and device, computer equipment and storage medium |
| CN107741787A (en) * | 2017-11-01 | 2018-02-27 | 珠海市魅族科技有限公司 | tactile feedback method, terminal and storage medium |
| CN110241547A (en) * | 2018-03-07 | 2019-09-17 | 青岛海尔滚筒洗衣机有限公司 | A kind of washing machine and control method with vibration function |
| CN110241547B (en) * | 2018-03-07 | 2023-08-08 | 青岛海尔洗涤电器有限公司 | Washing machine with vibration function and control method |
| CN108509079A (en) * | 2018-03-29 | 2018-09-07 | 北京小米移动软件有限公司 | Touch control component and electronic equipment including the touch control component |
| CN108741493A (en) * | 2018-05-06 | 2018-11-06 | 苏州蓝色弹珠智能科技有限公司 | Umbrella |
| CN108874138A (en) * | 2018-06-20 | 2018-11-23 | 珠海市魅族科技有限公司 | A kind of pressure feedback system, electronic equipment and pressure feedback method |
| CN113377241A (en) * | 2021-07-08 | 2021-09-10 | 深圳市优奕视界有限公司 | Display touch integrated chip for realizing human-computer interaction function |
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Application publication date: 20170728 |
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