CN107131982A - The touch-control pressure detection method of contact panel - Google Patents
The touch-control pressure detection method of contact panel Download PDFInfo
- Publication number
- CN107131982A CN107131982A CN201710333300.5A CN201710333300A CN107131982A CN 107131982 A CN107131982 A CN 107131982A CN 201710333300 A CN201710333300 A CN 201710333300A CN 107131982 A CN107131982 A CN 107131982A
- Authority
- CN
- China
- Prior art keywords
- touch
- pressure
- value
- control
- pressure sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 58
- 230000001939 inductive effect Effects 0.000 claims description 34
- 239000004065 semiconductor Substances 0.000 claims description 15
- 238000005259 measurement Methods 0.000 claims description 13
- 238000011161 development Methods 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 4
- 239000002210 silicon-based material Substances 0.000 claims description 4
- 229910021417 amorphous silicon Inorganic materials 0.000 claims description 2
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 2
- 230000002035 prolonged effect Effects 0.000 claims 1
- 230000035945 sensitivity Effects 0.000 abstract description 13
- 238000000034 method Methods 0.000 description 10
- 238000012360 testing method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/16—Measuring force or stress, in general using properties of piezoelectric devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/16—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force
- G01L5/167—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force using piezoelectric means
Abstract
The embodiment of the invention discloses a kind of touch-control pressure detection method of contact panel.The touch-control pressure detection method includes：Obtain pressure sensor touch-control feedback intensity S by different touch-control pressure value F at the different position of touch r of contact panel；According to touch-control feedback intensity S, the position of touch r of contact panel and the input detected value U of pressure sensor are built0Corresponding relation；With touch-control feedback intensity S increase, input detected value U0Reduce；Obtain current position of touch r；According to the position of touch r of contact panel and the input detected value U of pressure sensor0Corresponding relation, determine the input detected value U of pressure sensor0, and transmit to corresponding pressure sensor；Pressure sensor is obtained in input input detected value U0When output detection value U；According to output detection value U, it is determined that touch-control pressure value F at current position of touch r.The purpose that touch-control pressure detection method can improve the sensitivity of touch-control pressure detecting is provided using the embodiment of the present invention.
Description
Technical field
The present embodiments relate to the touch-control pressure detecting side of touch-control pressure sensing technologies, more particularly to a kind of contact panel
Method.
Background technology
At present, to be widely used in mobile phone, tablet personal computer, public place as a kind of information input tool big for contact panel
In the electronic equipments such as the information enquiry machine in the Room.So, the mark that user need to be only touched with finger on the electronic equipment just can be real
Now to the operation of the electronic equipment, dependence of the user to other input equipments (such as keyboard and mouse) is eliminated, makes man-machine friendship
It is mutually more simple.
In order to preferably meet user's request, when detection user's touch contact panel is generally provided in contact panel
The pressure sensor of touch-control pressure size, to enrich the application of touch technology.But, current electronic equipment pursues narrow frame
Change, such as touch control display apparatus, the wiring space for being used to show in the non-display area of touch-control display panel is very limited, less
The excessive pressure sensor of possible layout, this pressing that can cause pressure sensor and can sense is limited in scope, and is passed away from pressure
Sensor remote position, the sensitivity of pressure sensor is relatively low, and then make it that the pressure detecting performance of contact panel is not good.
The content of the invention
The present invention provides a kind of touch-control pressure detection method, to realize the sensitivity for improving contact panel touch-control pressure detecting
Purpose.
The embodiments of the invention provide a kind of touch-control pressure detection method of contact panel, the touch panel edge is set
There is at least one pressure sensor；
The touch-control pressure detecting side includes：
The pressure sensor is obtained at the different position of touch r of the contact panel by different touch-control pressure value F
Touch-control feedback intensity S；
According to the touch-control feedback intensity S, the defeated of the position of touch r of the contact panel and the pressure sensor is built
Enter detected value U0Corresponding relation；With the increase of the touch-control feedback intensity S, the input detected value U0Reduce；
Obtain current position of touch r；
According to the position of touch r of the contact panel and the input detected value U of the pressure sensor0Correspondence pass
System, determines the input detected value U of the pressure sensor0, and transmit to the corresponding pressure sensor；
Obtain the pressure sensor and input the input detected value U0When output detection value U；
According to the output detection value U, touch-control pressure value F at presently described position of touch r is determined.
The embodiment of the present invention before pressing by, according to touch-control feedback intensity S, building the position of touch r and pressure of contact panel
The input detected value U of force snesor0Corresponding relation；With touch-control feedback intensity S increase, input detected value U0Reduce.By
According to the position of touch r of contact panel and the input detected value U of pressure sensor after pressure0Corresponding relation, determine pressure sensing
The input detected value U of device0, and transmit to corresponding pressure sensor, solve existing contact panel touch-control pressure detecting
Sensitivity is not high, and touch-control pressure detecting process power consumption it is larger the problem of, realize improve contact panel touch-control pressure detecting spirit
Sensitivity, while reducing the effect of power consumption.
Brief description of the drawings
Fig. 1 a are a kind of structural representation of contact panel provided in an embodiment of the present invention；
Fig. 1 b are the structural representation of another contact panel provided in an embodiment of the present invention；
Fig. 2 is a kind of flow chart of the touch-control pressure detection method of contact panel provided in an embodiment of the present invention；
Fig. 3 a are reference input detected value U0' be equal to 3.3V when, area 10 tangible to the contact panel carries out full frame pressing
Test, the tangible position Δ U distribution schematic diagrams of area 10 of the contact panel；
Fig. 3 b are reference input detected value U0' be equal to 10V when, area 10 tangible to the contact panel carry out it is full frame pressing survey
Examination, the tangible position Δ U distribution schematic diagrams of area 10 of the contact panel；
Fig. 4 is the structural representation of another contact panel provided in an embodiment of the present invention；
Fig. 5 is a kind of structural representation of pressure sensor provided in an embodiment of the present invention；
Fig. 6 is the structural representation of another contact panel provided in an embodiment of the present invention；
Fig. 7 is the structural representation of another pressure sensor provided in an embodiment of the present invention.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention, rather than limitation of the invention.It also should be noted that, in order to just
Part related to the present invention rather than entire infrastructure are illustrate only in description, accompanying drawing.
Fig. 1 a are a kind of structural representation of contact panel provided in an embodiment of the present invention.Referring to Fig. 1 a, in the touch surface
Edges of boards edge is provided with least one pressure sensor 20 (4 pressure sensors 20 are exemplarily provided with Fig. 1 a).The touch-control
Panel includes at least one flat surfaces and the four edges line around the flat surfaces.The touch panel edge be provided with to
A few pressure sensor 20 is referred specifically to, and at least one pressure is provided with the position of four edges line on the flat surfaces
Sensor 20.
Touched it should be noted that defining for main body for touch (such as finger), to determine touch information (including touch-control
Positional information and/or touch-control pressure information) region be tangible area 10, then as shown in Figure 1a, the tangible area 10 can be all over
And the whole flat surfaces of contact panel；Or, as shown in Figure 1 b, the tangible area 10 can also be only arranged at contact panel
Part flat surfaces.
In Fig. 1 a and Fig. 1 b, the flat surfaces are shaped as rectangle, and this is only specific example of the present invention, and
Non- limitation of the present invention.In actual setting, can according to design needs, set the flat surfaces be shaped as square,
Circular or triangle etc..It should be noted that the shape of the flat surfaces is different, around the sideline of the flat surfaces bar number and
Shape may also be different, and this is not restricted.
Fig. 2 is a kind of flow for the touch-control pressure detection method for being directed to above-mentioned contact panel provided in an embodiment of the present invention
Figure.Referring to Fig. 2, the touch-control pressure detection method includes：
S110, acquisition pressure sensor 20 are at the different position of touch r of contact panel by different touch-control pressure value F's
Touch-control feedback intensity S.
The essence of this step is that the one-to-one corresponding for determining position of touch r, touch-control pressure value F and touch-control feedback intensity S is closed
System.Here, position of touch r, specific pressing position coordinate when referring to press contact panel using size for F touch-control pressure.
When touch-control feedback intensity S is that the touch-control pressure for being F using size presses a certain position r of contact panel, the institute of pressure sensor 20
The deformation quantity for the contact panel experienced.Performance parameter, each pressure of the touch-control feedback intensity S size by each pressure sensor 20
The many factors collective effects such as the hardness in the tangible area 10 of specific set location and touch panel of force snesor 20.
At the actually optional position of pressing contact panel, whole contact panel all can be deformed upon accordingly.Pressure sensing
The deformation situation of contact panel can influence the deformation situation of the pressure sensor 20 near the set location of device 20, and then influence the pressure
The value of electrical signals that force snesor 20 is exported.Research shows, is input to the reference input detected value U of pressure sensor 200' it is definite value
When, press contact panel, the big position of touch-control feedback intensity, value of electrical signals and be input to pressure biography that pressure sensor 20 feeds back
The reference input detected value U of sensor 200' difference Δ U it is bigger.Therefore, detected in the reference input for being input to pressure sensor 20
Value U0' on the premise of definite value, it is possible to use pressure sensor 20 feeds back after pressing value of electrical signals and be input to pressure sensing
The reference input detected value U of device 200' difference Δ U characterize touch-control feedback intensity S.
The concrete methods of realizing of this step has a variety of, for example, performance parameter, each pressure that can be according to each pressure sensor 20
The information such as the hardness in the tangible area 10 of specific set location and touch panel of force snesor 20, which are calculated, to be obtained.Or, to pressure
The input of force snesor 20 determines the reference input detected value U of size0', using the touch-control pressure of multiple known dimensions, successively to touching
The tangible area 10 of control panel carries out full frame pressing, and detects the touch-control feedback intensity S of pressure sensor 20, so that it is determined that touch-control position
Put r, touch-control pressure value F and touch-control feedback intensity S one-to-one relationship.
Fig. 3 a are reference input detected value U0During '=3.3V, area tangible to the contact panel carries out full frame pressing test,
The tangible position Δ U distribution schematic diagrams of area 10 of the contact panel.Fig. 3 b are reference input detected value U0During '=10V, to this
The tangible area of contact panel carries out full frame pressing test, the tangible area position Δ U distribution schematic diagrams of the contact panel.Fig. 3 a
Δ U size is represented with the numerical value in Fig. 3 b, unit is mV.
Referring to Fig. 3 a and Fig. 3 b, tested by carrying out full frame pressing to the contact panel, it is found that for single pressure
Sensor 20, inputs same reference input detected value U0' in the case of, the touch-control pressure by F of size presses tangible area 10
During diverse location, the value of electrical signals that pressure sensor 20 feeds back after pressing is detected with being input to the reference input of pressure sensor 20
Value U0' difference Δ U it is of different sizes.Press the electricity that pressure sensor 20 feeds back behind the position of pressure sensor 20, pressing
Signal value and the reference input detected value U for being input to pressure sensor 200' difference Δ U it is bigger.Accordingly, it can set with tactile
Position r and the distance between pressure sensor 20 increase are controlled, touch-control feedback intensity S reduces.Here set with position of touch r
With the increase of the distance between pressure sensor 20, touch-control feedback intensity S reduces, and is substantially the touch-control position to being obtained in S110
Put a kind of correcting mode of r, touch-control pressure value F and touch-control feedback intensity S one-to-one relationship.The benefit so set is,
May insure can be rightly position of touch according to the distance between position of touch r and pressure sensor 20 in subsequent step
R selectes the input detected value U of pressure sensor 200, and then when ensuring pressing position of touch r, what pressure sensor 20 fed back
Value of electrical signals and the reference input detected value U for being input to pressure sensor 200' difference Δ U sizes it is appropriate, reach both can guarantee that it is tactile
Panel is touched with higher touch-control pressure detecting sensitivity, while touch panel has the purpose of relatively low power consumption.
Research shows that user carries out the likelihood ratio of touch control operation at the tangible edge of area 10 near contact panel central point
(position for closing on contact panel sideline) carries out big many of probability of touch control operation.Here the central point of contact panel refers to touch-control
The geometric center in the tangible area 10 of panel.Therefore, alternatively, set between position of touch r and the central point of contact panel
Distance increase, touch-control feedback intensity S reduce.Similarly, the central point with position of touch r and contact panel is set here
The distance between increase, touch-control feedback intensity S reduce, be substantially to obtained in S110 position of touch r, touch-control pressure value
A kind of correcting mode of F and touch-control feedback intensity S one-to-one relationship.The benefit of such setting is, it can be ensured that rear
Can be rightly the selected pressures of position of touch r according to the distance between central point of position of touch r and contact panel in continuous step
The input detected value U of force snesor 200, and then when ensuring pressing position of touch r, the value of electrical signals that pressure sensor 20 feeds back
Reference input detected value U with being input to pressure sensor 200' difference Δ U sizes it is appropriate, reach and both can guarantee that touch panel has
There is higher touch-control pressure detecting sensitivity, while touch panel has the purpose of relatively low power consumption.
S120, according to touch-control feedback intensity S, the position of touch r and pressure sensor 20 that build contact panel input are examined
Measured value U0Corresponding relation；With touch-control feedback intensity S increase, input detected value U0Reduce.
With continued reference to Fig. 3 a and Fig. 3 b, the same position in the tangible area 10 of contact panel is pressed using the touch-control pressure of same size
Put, different reference input detected value U0' under, pressure sensor 20 feeds back after pressing value of electrical signals and be input to pressure sensor
20 reference input detected value U0' difference Δ U it is of different sizes.If pressure sensor 20 feeds back after pressing value of electrical signals and input
Difference Δ U to the reference input detected value U0 ' of pressure sensor 20 is too small, and pressure sensor 20 is sensitive to touch-control pressure detecting
Degree is not high.
Further, comparison diagram 3a and Fig. 3 b, presses contact panel location A using the touch-control pressure of same size, works as ginseng
Examine input detected value U0During '=3.3V, pressure sensor 20 feeds back after pressing value of electrical signals and be input to pressure sensor 20
Reference input detected value U0' difference Δ U it is larger, be enough to calculate touch-control pressure according to Δ U, if now making reference input
Detected value U0During '=10V, the power consumption of contact panel can be increased.And utilize touch-control pressure pressing contact panel B of same size
Put, as reference input detected value U0During '=3.3V, pressure sensor 20 feeds back after pressing value of electrical signals and be input to pressure biography
The reference input detected value U of sensor 200' difference Δ U it is too small, the accurate size for calculating touch-control pressure is unfavorable for according to Δ U, this
Shi Ruo is referring in addition to input detected value U0During '=10V, the value of electrical signals of the feedback of pressure sensor 20 after pressing can be increased with being input to
The reference input detected value U of pressure sensor 200' difference Δ U, be so conducive to improve pressure detecting sensitivity.
Based on the above, the implementation method of this step is, according to touch-control feedback intensity S, to build the touch-control of contact panel
Position r and pressure sensor 20 input detected value U0Corresponding relation, be that each pressure sensor 20 is determined on contact panel
The detected value U of its required input0.Exemplarily, position of touch r and pressure sensor 20 distance are more remote, during pressing, the pressure
The input detected value U of sensor 200It is bigger.Or, position of touch r and contact panel central point distance are more remote, during pressing,
The input detected value U of the pressure sensor 200It is bigger.
Typically, if touch panel edge is provided with two or more pressure sensors 20；Different pressures sensor
The 20 touch-control feedback intensity S by identical touch-control pressure value F at same position of touch r is different；And sensed for different pressures
Device 20, the position of touch r of the contact panel and input detected value U of pressure sensor 200Corresponding relation it is different.So set
Benefit is, according to position of touch r and each pressure sensor 20 distance, targetedly determines to input for each pressure sensor 20
Detected value U0, to ensure that each pressure sensor 20 can be operated under optimal working condition, so that contact panel has simultaneously
There are the sensitivity and lower power consumption of higher pressure detecting.
It should be noted that S110 and S120 can be performed before dispatching from the factory, it is possible to by the position of touch determined in S110
R, touch-control pressure value F and touch-control feedback intensity S one-to-one relationship, and the position of touch r determined in S120 are passed with pressure
The input detected value U of sensor 200Corresponding relation be stored in register.
S130, the current position of touch r of acquisition.
Here pressing position when current position of touch r refers to user's current press contact panel.
The implementation method of this step can have a variety of, for example can be according to the testing result meter of touch control electrode on contact panel
Calculation obtains position of touch r, can also be obtained according to other hardware or software program.It is not restricted herein.
Typically, obtained if being calculated according to the testing result of touch control electrode on contact panel on position of touch r, contact panel
Touch control electrode can be self-tolerant touch control electrode, or mutual capacitance type touch control electrode.Exemplarily, if touch control electrode is certainly
Appearance formula touch control electrode, alternatively, as shown in figure 4, being provided with multiple self-tolerant touch control electrodes 13, the touch control electrode on contact panel
13 be block type electrode, and each touch control electrode 13 corresponds to the coordinate position of a determination, and these touch control electrodes 13 are distinguished
Electric capacity is constituted with ground.When finger touches the contact panel, the electric capacity of finger will be added in the touch control electrode 13 of its touch,
The direct-to-ground capacitance of its touch control electrode 13 touched is set to change.Due to the reacting condition touch-control of the signal of each touch control electrode 13
The change of the direct-to-ground capacitance of electrode 13.By detecting the signal intensity situation of each touch control electrode 13, it is determined which specific touch-control electricity
The signal of pole 13 changes, and then the corresponding coordinate value of touch control electrode 13 that can be changed according to signal, determines finger
Touch location.
S140, the position of touch r according to contact panel and pressure sensor 20 input detected value U0Corresponding relation, really
The input detected value U of level pressure force snesor 200, and transmit to corresponding pressure sensor 20.
The implementation method of this step can be to consult the position of touch r and pressure sensing of the contact panel determined in S130
The input detected value U of device 200Corresponding relation, and then obtain the input of the corresponding each pressure sensors 20 of current position of touch r
Detected value U0Size, and by input detected value U0It is transmitted separately to corresponding pressure sensor 20.
S150, acquisition pressure sensor 20 are in input input detected value U0When output detection value U.
The implementation method of this step can be to input detected value U to the input of each pressure sensor 200Afterwards, detect respectively
The output detection value U of each pressure sensor 20.
S160, according to output detection value U, it is determined that touch-control pressure value F at current position of touch r.
The concrete methods of realizing of this step has a variety of.For example：Obtain different touch-controls of the pressure sensor 20 in contact panel
While at the r of position by different touch-control pressure value F touch-control feedback intensity S, touch-control feedback intensity S and touch-control pressure value are built
F and position of touch r functional relation S (F, r).According to output detection value U, it is determined that touch-control pressure value F at current position of touch r,
Including：According to output detection value U and it is input to the input detected value U of pressure sensor 200, calculate change in detection signal amount Δ
U；According to change in detection signal amount Δ U and touch-control feedback intensity S and input detected value U0Functional relation Δ U (S, U0) and touch
(F, r), calculating obtain touching at current position of touch r control feedback intensity S and touch-control pressure value F and position of touch r functional relation S
Pressure control force value F.
It should be noted that change in detection signal amount Δ U and touch-control feedback intensity S and input detected value U0Functional relation
Δ U (S, U0) acquisition modes have a variety of, can for example be obtained by artificially setting, can also be right before contact panel dispatches from the factory
The tangible area 10 of contact panel carries out full frame pressing test and obtained.
The embodiment of the present invention before pressing by, according to touch-control feedback intensity S, building the position of touch r and pressure of contact panel
The input detected value U of force snesor 200Corresponding relation；With touch-control feedback intensity S increase, input detected value U0Reduce.
According to the position of touch r of contact panel and the input detected value U of pressure sensor 20 after pressing0Corresponding relation, determine pressure
The input detected value U of sensor 200, and transmit to corresponding pressure sensor 20, solve existing contact panel touch-control pressure
The sensitivity of detection is not high, and touch-control pressure detecting process power consumption it is larger the problem of, realize and improve the inspection of contact panel touch-control pressure
The sensitivity of survey, while reducing the effect of power consumption.
Alternatively, it is contemplated that, in practice in the case of in the absence of touch-control pressure, due to being connected with pressure sensor 20
Connecting wire, pressure sensor 20 etc. there is resistance so that the output detection value U and input detected value of pressure sensor 20
U0And it is unequal, this can cause the output detection value U and input detected value U using pressure sensor 200Calculate obtained detection
Change amount signal Δ U includes partial noise, reduces sensitivity and the accuracy of contact panel touch-control pressure detecting.Can for this
Selection of land, before current position of touch r is obtained, in addition to：Pressure sensor 20 is obtained in no pressure touch-control, difference input inspection
Measured value U0Corresponding output bias U '；According to output detection value U, it is determined that touch-control pressure value F at current position of touch r, including：
According to the corresponding input detected value U of output detection value U and output detection value U0Obtained output bias U ', it is determined that current touch
Control touch-control pressure value F at the r of position.The benefit so set is can further to improve the spirit of contact panel touch-control pressure detecting
Sensitivity and accuracy.
According to the corresponding input detected value U of output detection value U and output detection value U0Obtained output bias U ', really
Touch-control pressure value F concrete methods of realizing has a variety of at settled preceding position of touch r, alternatively, according to output detection value U and defeated
Go out bias U ', calculate change in detection signal amount Δ U；Examined according to change in detection signal amount Δ U and touch-control feedback intensity S and input
Measured value U0Functional relation Δ U (S, U0) and touch-control feedback intensity S and touch-control pressure value F and position of touch r functional relation S
(F, r), calculating obtain touch-control pressure value F at current position of touch r.
In above-mentioned technical side, the pressure sensor 20 on contact panel can include pressure sensitive bridge sensor or half
Conductor piezoresistance sensor etc..The classification to pressure sensor 20 is not restricted herein.
Fig. 5 is a kind of structural representation of pressure sensor 20 provided in an embodiment of the present invention.Referring to Fig. 5, the pressure is passed
Sensor 20 is pressure sensitive bridge sensor.The pressure sensor 20 includes the first inductive reactance R1, the second inductive reactance R2, the
Three inductive reactance R3 and the 4th inductive reactance R4；The pressure sensitive electric bridge 30 also includes the first bearing of trend 100 and the second extension
Direction 200, the first bearing of trend 100 and the second bearing of trend 200 are arranged in a crossed manner.
First inductive reactance R1 first end a and the 4th inductive reactance R4 first end a ' and the first power input
Vin1 electrical connection, the first inductive reactance R1 the second end b and the second inductive reactance R2 first end b ' and the first induced signal are surveyed
Measure end Vout1 electrical connection, the 4th inductive reactance R4 the second end d and the 3rd inductive reactance R3 first end d ' and the second sensing
Signal measurement end Vout2 electrical connections, the second inductive reactance R2 the second end c and the 3rd inductive reactance R3 the second end c ' and the
Two power input Vin2 electrical connections.
Components of the first inductive reactance R1 by first end a to the second end b development length on the first bearing of trend 100 is big
In the component on the second bearing of trend 200, the second inductive reactance R2 is by first end b ' to the second end c development length second
Component on bearing of trend 200 is more than the component on the first bearing of trend 100, and the 3rd inductive reactance R3 is by first end d ' to the
Component of the two end c ' development length on the first bearing of trend 100 is more than the component on the second bearing of trend 200, the 4th sense
Resistance R4 is answered to be more than by component of first end a ' to the second end d development length on the second bearing of trend 200 in the first extension
Component on direction 100.
First power input Vin1 and second source input Vin2 are used to input to pressure sensitive bridge sensor
Detected value U0；First induced signal measurement end VoutThe 1 and second induced signal measurement end Vout2 are used for from pressure sensitive electric bridge sensing
The output detection value U of device output.
Answering for the first bearing of trend 100 can be detected using the first inductive reactance R1 and the 3rd inductive reactance R3 by so setting
Become, the strain of the second bearing of trend 200 is detected using the second inductive reactance R2 and the 4th inductive reactance R4.Main body will be touched to exist
The pressure conversion applied on contact panel is the adaptability to changes along the first bearing of trend 100 and the second bearing of trend 200, realizes touch-control
Pressure detecting.
The first bearing of trend 100 is defined for principal strain directions.Further, it is contemplated that be in actual setting, pressure sensitive
Bridge sensor principal strain directions is different from the angle in the contact panel sideline nearest apart from pressure sensitive bridge sensor, touch-control
The particular location that check frequency occurs on panel is different.Here check frequency refers to, when to contact panel can Touch Zone carry out
During full frame pressing test, there are some regions, when pressing any position in the region, detected two of the pressure sensitive electric bridge
Difference very little, even 0 so that the pressure sensitive electric bridge can not detect the size of the touch-control pressure in the area are strained on direction.
The region is the inspection blind area of the pressure sensitive electric bridge.Alternatively, the principal strain directions of pressure sensitive bridge sensor is set
With apart from pressure sensitive bridge sensor it is nearest can the angle α in the sideline of Touch Zone 10 be more than or equal to 20 °, and be less than or equal to
70°.The benefit so set is, it is possible to prevente effectively from occurring larger touch-control blind area in contact panel.Further, such as Fig. 6
It is shown, set the principal strain directions of pressure sensitive bridge sensor with apart from pressure sensitive bridge sensor it is nearest can Touch Zone
The size of the angle α in 10 sidelines is 45 °.The benefit so set is can to reduce the touch-control in contact panel to greatest extent
Blind area.
Fig. 7 is the structural representation of another pressure sensor 20 provided in an embodiment of the present invention.Referring to Fig. 7, the pressure
Sensor 20 is semiconductor pressure sensor 20.Semiconductor pressure sensor 20 is amorphous silicon material film or polycrystalline silicon material film；
Semiconductor pressure sensor 20 includes the first power input Vin1 and second source input Vin2, for semiconductor pressure
The input input detected value of sensor 20 U0, semiconductor pressure sensor 20 is also including the first induced signal measurement end Vout1 and second
Induced signal measurement end Vout2, for exporting output detection value U from semiconductor pressure sensor 20.
With continued reference to Fig. 7, the semiconductor pressure sensor 20 is quadrangle pressure sensor 20, the first power input
Vin1st, second source input Vin2nd, the first induced signal measurement end VoutThe 1 and second induced signal measurement end Vout2 respectively with half
Four sides of conductor pressure sensor 20 are connected.It is semiconductor that the pressure conversion that main body applies on contact panel, which will be touched,
Adaptability to changes on the place plane bearing of trend of pressure sensor 20, realizes touch-control pressure detecting.
Note, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art it is various it is obvious change,
Readjust, be combined with each other and substitute without departing from protection scope of the present invention.Therefore, although by above example to this
Invention is described in further detail, but the present invention is not limited only to above example, is not departing from present inventive concept
In the case of, other more equivalent embodiments can also be included, and the scope of the present invention is determined by scope of the appended claims.
Claims (10)
1. the touch-control pressure detection method of a kind of contact panel, it is characterised in that the touch panel edge is provided with least one
Individual pressure sensor；
The pressure sensor is obtained to be touched by different touch-control pressure value F at the different position of touch r of the contact panel
Control feedback intensity S；
According to the touch-control feedback intensity S, the position of touch r and the pressure sensor that build the contact panel input are examined
Measured value U0Corresponding relation；With the increase of the touch-control feedback intensity S, the input detected value U0Reduce；
Obtain current position of touch r；
According to the position of touch r of the contact panel and the input detected value U of the pressure sensor0Corresponding relation, really
The input detected value U of the fixed pressure sensor0, and transmit to the corresponding pressure sensor；
Obtain the pressure sensor and input the input detected value U0When output detection value U；
According to the output detection value U, touch-control pressure value F at presently described position of touch r is determined.
2. touch-control pressure detection method according to claim 1, it is characterised in that with the position of touch r with it is described
The increase of the distance between pressure sensor, the touch-control feedback intensity S reduces.
3. touch-control pressure detection method according to claim 1, it is characterised in that with the position of touch r with it is described
The increase of the distance between the central point of contact panel, the touch-control feedback intensity S reduces.
4. touch-control pressure detection method according to claim 1, it is characterised in that the touch panel edge is provided with two
Pressure sensor described in individual or two or more；
The different pressure sensors at same position of touch r by identical touch-control pressure value F touch-control feedback intensity S not
Together；And for the different pressure sensors, the position of touch r of the contact panel and the input of the pressure sensor
Detected value U0Corresponding relation it is different.
5. touch-control pressure detection method according to claim 1, it is characterised in that
It is described to obtain the pressure sensor at the different position of touch r of the contact panel by different touch-control pressure value F
Touch-control feedback intensity S while, build the touch-control feedback intensity S and touch-control pressure value F and position of touch r functional relation
S (F, r)；
It is described that touch-control pressure value F at presently described position of touch r is determined according to the output detection value U, including：
According to the output detection value U and it is input to the input detected value U of the pressure sensor0, calculate detection signal
Variation delta U；According to change in detection signal amount Δ U and the touch-control feedback intensity S and input detected value U0Function close
It is Δ U (S, U0) and the touch-control feedback intensity S and touch-control pressure value F and position of touch r functional relation S (F r), is calculated
Obtain touch-control pressure value F at presently described position of touch r.
6. touch-control pressure detection method according to claim 1, it is characterised in that obtain current position of touch r described
Before, in addition to：
The pressure sensor is obtained in no pressure touch-control, the different input detected value U0Corresponding output bias U '；
It is described that touch-control pressure value F at presently described position of touch r is determined according to the output detection value U, including：
According to the corresponding input detected value U of the output detection value U and the output detection value U0The obtained output
Bias U ', determines touch-control pressure value F at presently described position of touch r.
7. touch-control pressure detection method according to claim 1, it is characterised in that the pressure sensor includes feeling of stress
Answer bridge sensor or semiconductor pressure resistance sensor.
8. touch-control pressure detection method according to claim 7, it is characterised in that the pressure sensor is pressure sensitive
Bridge sensor,
The pressure sensitive bridge sensor includes the first inductive reactance, the second inductive reactance, the 3rd inductive reactance and the 4th sense
Answer resistance；The pressure sensitive bridge sensor also includes the first bearing of trend and the second bearing of trend, the first extension side
To arranged in a crossed manner with second bearing of trend；
The first end of first inductive reactance and the first end of the 4th inductive reactance are electrically connected with the first power input
Connect, the first end of the second end of first inductive reactance and second inductive reactance and the first induced signal measurement end electricity
Connection, the second end of the 4th inductive reactance and the first end of the 3rd inductive reactance and the second induced signal measurement end
Second end of electrical connection, the second end of second inductive reactance and the 3rd inductive reactance and second source input electricity
Connection；
First inductive reactance is more than by component of the development length of first end to the second end on first bearing of trend
Component on second bearing of trend, second inductive reactance is prolonged by the development length of first end to the second end second
The component stretched on direction is more than the component on the first bearing of trend, the 3rd inductive reactance prolonging to the second end by first end
Component of the elongation on the first bearing of trend is more than the component on the second bearing of trend, and the 4th inductive reactance is by first
Component of the development length to the second end on the second bearing of trend is held to be more than the component on the first bearing of trend；
First power input and the second source input are used to input institute to the pressure sensitive bridge sensor
State input detected value U0；The first induced signal measurement end and the second induced signal measurement end are used for from the feeling of stress
Bridge sensor is answered to export the output detection value U.
9. touch-control pressure detection method according to claim 8, it is characterised in that including：
The principal strain directions of the pressure sensitive bridge sensor with apart from the pressure sensitive bridge sensor recently described in
The size of the angle in contact panel sideline is 45 °.
10. touch-control pressure detection method according to claim 8, it is characterised in that the pressure sensor is semiconductor
Pressure sensor；
The semiconductor pressure sensor is amorphous silicon material film or polycrystalline silicon material film；
The semiconductor pressure sensor includes the first power input and second source input, for the semiconductor pressure
The force snesor input input detected value U0, the semiconductor pressure sensor also includes the first induced signal measurement end and the
Two induced signal measurement ends, for exporting the output detection value U from the semiconductor pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710333300.5A CN107131982B (en) | 2017-05-12 | 2017-05-12 | The touch-control pressure detection method of touch panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710333300.5A CN107131982B (en) | 2017-05-12 | 2017-05-12 | The touch-control pressure detection method of touch panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107131982A true CN107131982A (en) | 2017-09-05 |
| CN107131982B CN107131982B (en) | 2019-09-13 |
Family
ID=59731819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710333300.5A Active CN107131982B (en) | 2017-05-12 | 2017-05-12 | The touch-control pressure detection method of touch panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107131982B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107632732A (en) * | 2017-09-20 | 2018-01-26 | 厦门天马微电子有限公司 | Display panel, display device and touch control operation moving direction recognition methods |
| CN110908542A (en) * | 2019-11-29 | 2020-03-24 | 上海众链科技有限公司 | Screen assembly of intelligent terminal, screen pressure detection method and computer readable storage medium |
| CN112817478A (en) * | 2021-01-22 | 2021-05-18 | 维沃移动通信有限公司 | Pressure-sensitive signal processing method and device, electronic equipment and readable storage medium |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1086012A (en) * | 1992-10-01 | 1994-04-27 | 莫托罗拉公司 | Pulsed pressure sensor circuit and using method thereof |
| US8564559B2 (en) * | 2010-12-22 | 2013-10-22 | Universal Cement Corporation | Cover glass button for display of mobile device |
| CN105511679A (en) * | 2015-12-25 | 2016-04-20 | 上海天马微电子有限公司 | Glass substrate, touch control display screen and touch control pressure calculation method |
| CN105607784A (en) * | 2016-03-31 | 2016-05-25 | 宇龙计算机通信科技(深圳)有限公司 | Method for adjusting sensitivity of touch screen, adjusting device and terminal |
| CN105867699A (en) * | 2016-06-20 | 2016-08-17 | 上海天马微电子有限公司 | Display panel and touch-control pressure detection method |
| CN105975137A (en) * | 2016-07-07 | 2016-09-28 | 上海天马微电子有限公司 | Touch display panel and touch display device |
| CN106371647A (en) * | 2015-07-24 | 2017-02-01 | 高深公司 | Touch pressure sensitivity correction method and computer-readable recording medium |
-
2017
- 2017-05-12 CN CN201710333300.5A patent/CN107131982B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1086012A (en) * | 1992-10-01 | 1994-04-27 | 莫托罗拉公司 | Pulsed pressure sensor circuit and using method thereof |
| US8564559B2 (en) * | 2010-12-22 | 2013-10-22 | Universal Cement Corporation | Cover glass button for display of mobile device |
| CN106371647A (en) * | 2015-07-24 | 2017-02-01 | 高深公司 | Touch pressure sensitivity correction method and computer-readable recording medium |
| CN105511679A (en) * | 2015-12-25 | 2016-04-20 | 上海天马微电子有限公司 | Glass substrate, touch control display screen and touch control pressure calculation method |
| CN105607784A (en) * | 2016-03-31 | 2016-05-25 | 宇龙计算机通信科技(深圳)有限公司 | Method for adjusting sensitivity of touch screen, adjusting device and terminal |
| CN105867699A (en) * | 2016-06-20 | 2016-08-17 | 上海天马微电子有限公司 | Display panel and touch-control pressure detection method |
| CN105975137A (en) * | 2016-07-07 | 2016-09-28 | 上海天马微电子有限公司 | Touch display panel and touch display device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107632732A (en) * | 2017-09-20 | 2018-01-26 | 厦门天马微电子有限公司 | Display panel, display device and touch control operation moving direction recognition methods |
| CN110908542A (en) * | 2019-11-29 | 2020-03-24 | 上海众链科技有限公司 | Screen assembly of intelligent terminal, screen pressure detection method and computer readable storage medium |
| CN112817478A (en) * | 2021-01-22 | 2021-05-18 | 维沃移动通信有限公司 | Pressure-sensitive signal processing method and device, electronic equipment and readable storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107131982B (en) | 2019-09-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106020559B (en) | Pressure sensitive detection device, electronic equipment and touch display screen | |
| CN110192172B (en) | Pressure induction type structure and electronic product | |
| CN102341773B (en) | Coordinate input display apparatus | |
| CN104685455B (en) | Input unit and the control method for having used the input unit | |
| CN100489474C (en) | Method and device for measuring vector pressure taking advantage of capacitance change | |
| CN107278285B (en) | Pressure detection method and its device and electric terminal | |
| CN107340912A (en) | Contact panel, touch control display apparatus, touch-control pressure detection method | |
| US20130207934A1 (en) | Input device and touch position detecting method thereof | |
| CN206133514U (en) | Touch display panel and touch display device | |
| US20150070297A1 (en) | Control method for touch panel | |
| CN106873814A (en) | A kind of control method and electronic equipment | |
| CN107131982B (en) | The touch-control pressure detection method of touch panel | |
| CN102880338A (en) | Touch panel device | |
| CN105549791B (en) | A kind of display panel with pressure sensitive and touch function | |
| TW201329815A (en) | Force sensitive interface device and methods of using same | |
| CN107315505A (en) | Display panel, touch control display apparatus and touch-control pressure detection method | |
| KR101353509B1 (en) | Apparatus for measuring capacity of touch screen panel | |
| US11243633B2 (en) | Pressure sensing module, touch panel and method of detecting two-point touch pressure of touch panel | |
| CN104199579A (en) | Capacitive touch display device, touch detection method and integrated circuit IC | |
| CN108108061B (en) | Display panel and display device | |
| TWI628417B (en) | Sensor device and method for detecting a number of objects and electrical handheld device having sensor device | |
| CN104345928B (en) | The detection means and its detection method of contact panel | |
| CN104615326B (en) | Method and device for detecting resistance type touch screen | |
| CN107526473B (en) | Array substrate, display panel and display device | |
| CN105930009A (en) | Capacitive pressure transducer and electronic equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |