CN101996013A - Touch sensing method of resistance-type touch device - Google Patents
Touch sensing method of resistance-type touch device Download PDFInfo
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- CN101996013A CN101996013A CN 200910165952 CN200910165952A CN101996013A CN 101996013 A CN101996013 A CN 101996013A CN 200910165952 CN200910165952 CN 200910165952 CN 200910165952 A CN200910165952 A CN 200910165952A CN 101996013 A CN101996013 A CN 101996013A
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Abstract
The invention provides a touch sensing method of a resistance-type touch device. The resistance-type touch device comprises a touch panel and a touch circuit. In the touch sensing method, a single-touch mode or a multi-touch mode can be selected as an operation mode, and an analog driving method and a digital driving method are combined, so that the resistance-type touch device has the capability of multiple resolutions.
Description
Technical field
The present invention relates to a kind of sensing method of touch control of electric resistance touch-control device, and be the sensing method of touch control of single-point touch pattern or multi-point touch pattern particularly relevant for a kind of map function pattern of can selecting.
Background technology
Common electric resistance touch-control device is to adopt the four-wire type or the contact panel of five-line.Yet the four-wire type or the contact panel of five-line can only detect the touch-control of single-point.If will allow the electric resistance touch-control device possess function of multi-spot touch, then the layout of array type need be adopted in the conducting wire on the contact panel.But even possess the electric resistance touch-control panel of function of multi-spot touch, the type of drive of The built-in is often wherein a kind of only for driving of cover half plan or digital drive.Like this, known electric resistance touch-control device allows the user lack the elasticity of selecting driving method, and the function of change detecting resolution also can't be provided.
Summary of the invention
The invention provides a kind of sensing method of touch control of electric resistance touch-control device, can select operating mode be single-point touch pattern or multi-point touch pattern.
The invention provides a kind of sensing method of touch control of electric resistance touch-control device, it makes this electric resistance touch-control device possess the ability that multiple resolution is arranged in conjunction with analog-driven and two kinds of driving methods of digital drive.
According to one embodiment of the invention, a kind of sensing method of touch control that is applicable to the electric resistance touch-control device is proposed, this electric resistance touch-control device comprises a contact panel and a Drive and Control Circuit (driving circuit).Contact panel includes one second transparency carrier that one first transparency carrier and subtend be arranged in parallel.A plurality of first conductive patterns that extend along a first direction are disposed on first transparency carrier, and the first adjacent conductive pattern is parallel to each other.The two ends of each first conductive pattern are respectively equipped with one first electrode and one second electrode.A plurality of second conductive patterns that extend along a second direction are disposed on second transparency carrier, and the second adjacent conductive pattern is parallel to each other.First conductive pattern and second conductive pattern are between first transparency carrier and second transparency carrier.The two ends of each second conductive pattern are respectively equipped with a third electrode and one the 4th electrode.A plurality of septs are between first transparency carrier and second transparency carrier.Wherein, the part that overlaps mutually of those first conductive patterns and those second conductive patterns is defined as a plurality of induction blocks (sensing blocks).Drive and Control Circuit system couples those first electrodes, those second electrodes, those third electrodes and those the 4th electrodes, operates in a figure pattern or a simulation model in order to set the electric resistance touch-control device.This sensing method of touch control comprises: select operating mode makes the electric resistance touch-control device may operate in a single-point touch pattern (single-touch mode) or a multi-point touch pattern (multi-touch mode).When operating in the single-point touch pattern, Drive and Control Circuit is opened (activate) one first analog scanning and sensing function.When operating in this multi-point touch pattern, Drive and Control Circuit can select to open one second analog scanning and sensing function or a digital scanning and sensing function.Wherein, when digital scanning and sensing function are opened, have and touched if Drive and Control Circuit only senses in those induction blocks one, then Drive and Control Circuit can be got back to the single-point touch pattern, then opens first analog scanning and sensing function.
Sensing method of touch control according to one embodiment of the invention, after opening first analog scanning and sensing function, it scans with the detecting mode as follows: Drive and Control Circuit is at first imported one first voltage simultaneously to those first electrodes, and those second electrodes are imported one second voltage simultaneously.First voltage for example is 5 volts (5V), and second voltage for example is 0 volt (0V), makes according to this and forms a voltage difference between the two ends of each first conductive pattern.Then, those third electrodes sense a voltage division signal, and are back to the coordinate X (coordinate X) of Drive and Control Circuit to define a first direction.Then, Drive and Control Circuit transfers those third electrodes are imported a tertiary voltage simultaneously, and those the 4th electrodes are imported one the 4th voltage simultaneously.Purpose also is in order to form a voltage difference between the two ends that make each second conductive pattern.Afterwards, first electrode senses of those first conductive patterns arrives another voltage division signal, and is back to the coordinate Y (coordinate Y) of Drive and Control Circuit to define a second direction.At last, in conjunction with the coordinate Y of the coordinate X of first direction and second direction with determine a touch location (X, Y).Wherein, when first electrode receives first voltage, can the first all electrodes be electrically connected to each other selectivity.At this moment, the second all electrodes also are electrically connected to each other to receive second voltage.In like manner, when third electrode receives tertiary voltage, can all third electrodes be electrically connected to each other to receive tertiary voltage selectivity, at this moment, the 4th all electrodes also is electrically connected to each other to receive the 4th voltage.
According to the sensing method of touch control of one embodiment of the invention, when operating under the multi-point touch pattern, Drive and Control Circuit can selectively unlocking second analog scanning and sensing function.Wherein, according to the resolution of output coordinate, can be divided into low resolution simulation model and high resolving power simulation model again.
According to the sensing method of touch control of one embodiment of the invention, when operating under the multi-point touch pattern, Drive and Control Circuit can select only to open digital scanning and sensing function, and the touch location of corresponding induction block output low resolution of being touched.Or, can open digital scanning and sensing function earlier, then, open second analog scanning and sensing function, to improve the degree of accuracy of touch location at the induction block that is touched.
For above-mentioned feature and advantage of the present invention can be become apparent, embodiment cited below particularly, and conjunction with figs. is described in detail below.
Description of drawings
Fig. 1 is the synoptic diagram of the contact panel of one embodiment of the invention.
Fig. 2 is the schematic top plan view of contactor control device of the contact panel of application drawing 1.
Fig. 3 is the sensing method of touch control process flow diagram according to one embodiment of the invention.
Fig. 4 is the sensing method of touch control process flow diagram according to one embodiment of the invention, and it shows that opening first simulation scans and sensing function flow process afterwards.
Fig. 5 is the contactor control device synoptic diagram according to one embodiment of the invention, and it shows that second electrode and the 4th electrode can selectivity short circuit and ground connection.
Fig. 6 is the sensing method of touch control process flow diagram according to one embodiment of the invention, and it shows that opening second simulation scans and sensing function flow process afterwards.
Fig. 7 is the sensing method of touch control process flow diagram according to one embodiment of the invention, and it shows that opening numeral scans and sensing function flow process afterwards.
Fig. 8 is the sensing method of touch control process flow diagram according to one embodiment of the invention, and it shows that opening the 3rd simulation scans and sensing function flow process afterwards.
Symbol description
10: contact panel 20: the electric resistance touch-control device
120: the second transparency carriers of 110: the first transparency carriers
211～214: first conductive pattern, 221～224: second conductive pattern
230: sept 240: Drive and Control Circuit
240a, 240b: electronic circuit 241～244: signal wire
2401,2402: analog-digital converter 2403: switching switch circuit
D1: first direction D2: second direction
Vg: ground signalling EX1～EX4: first electrode
EX5～EX8: second electrode EY1～EY4: third electrode
EY5～EY8: the 4th electrode
Embodiment
Fig. 1 is the synoptic diagram of the contact panel of one embodiment of the invention, and Fig. 2 is the schematic top plan view of contactor control device of the contact panel of application drawing 1.Please be simultaneously with reference to Fig. 1 and Fig. 2, the Drive and Control Circuit (drivingcircuit) 240 that electric resistance touch-control device 20 comprises a contact panel 10 and is connected to contact panel 10.
First conductive pattern 211～214 is parallel to each other to a first direction D1, and an end of first conductive pattern 211～214 couples first electrode EX1～EX4, and couples second electrode EX5～EX6 at the relative other end.Simultaneously, second conductive pattern 221～224 is parallel to each other to a second direction D2.One end of second conductive pattern 221～224 couples third electrode EY1～EY4, and couples the 4th electrode EY5～EY6 at the relative other end.Wherein, first direction D1 and second direction D2 intersect, and are preferably vertical mutually.
Present embodiment is to be example describing with the contact panel 10 that four first conductive patterns 211～214 and four second conductive patterns 221～224 are constituted, but the invention is not restricted to this.In other embodiments, contact panel 10 can be formed by crossing arrangement of more a plurality of or still less individual conductive pattern.In the present embodiment, the overlapped part of first conductive pattern 211～214 and second conductive pattern 221～224 is formed with most induction blocks (sensing blocks).From the schematic top plan view of Fig. 2, always have 4 * 4=16 induction block.When the user pushed contact panel 10, the position that is pressed then produced corresponding sense signals because of being in contact with one another conducting between first conductive pattern and second conductive pattern.
Drive and Control Circuit 240 is to couple first electrode EX1～EX4, second electrode EX5～EX6, third electrode EY1～EY4 and the 4th electrode EY5～EY6 with signal wire 241～244.Coupling mode by this, Drive and Control Circuit 240 can selectivity be set electric resistance touch-control device 20 operate in a figure pattern or a simulation model.
Please refer to Fig. 3, it shows the sensing method of touch control process flow diagram according to one embodiment of the invention.This sensing method of touch control comprises: at first, shown in step S10, carry out the selection of operator scheme, make electric resistance touch-control device 20 may operate in a single-point touch pattern (single-touch mode) (step S12) or a multi-point touch pattern (multi-touch mode) (step S14).Select operating mode can be just pre-set before the user operates, and also can be that Drive and Control Circuit 240 is just judged automatically and selected after beginning operation.When operating in single-point touch Mode S 12, Drive and Control Circuit 240 is then opened (activate) one first analog scanning and sensing function with decision position of touch (touchedposition).Otherwise when operating in multi-point touch Mode S 14, Drive and Control Circuit 240 can be selected to open one second analog scanning and sensing function (step S140) or be opened a digital scanning and sensing function (step S141).
Further, when digital scanning and sensing function S141 unlatching, have and touched if Drive and Control Circuit 240 only senses those inductions in blocks, then Drive and Control Circuit 240 can be got back to single-point touch Mode S 12, then opens first analog scanning and sensing function S120 to determine final position of touch.Like this, when the user only operates with single only finger or single object, can improve the accuracy of position of touch.For instance, when the point of the T1 among Fig. 2 is touched, represent Drive and Control Circuit 240 can detect a sensing signal (sensing signal), and this sensing signal mean to the induction block corresponding to first conductive pattern 212 and the 224 overlapping formation of second conductive pattern.At this moment, Drive and Control Circuit 240 can switch to single-point touch Mode S 12 and determine touch location in the mode of analog-driven.
On the other hand, have and touched if Drive and Control Circuit 240 senses induction at least two in the block, then Drive and Control Circuit 240 can have dual mode decision touch location.First kind is directly to determine touch location with the sensing signal that detects.Second kind is to open one the 3rd analog scanning and sensing function further.For example the T1 point in Fig. 2 was touched with the T2 point while, then represented Drive and Control Circuit 240 can detect two sensing signals, and these two sensing signals mean to two that order corresponding to T1 point and T2 and respond to blocks.At this moment, Drive and Control Circuit 240 can be corresponding to the signal of above-mentioned two sensing signals outputs two (1-bit), shown in step S148.After, again with two one above-mentioned signal deciding touch location (step S149).The 3rd analog scanning and sensing function as for the second way are then waited until the back detailed description.
Please also refer to Fig. 1～Fig. 4, Fig. 4 is the sensing method of touch control process flow diagram according to one embodiment of the invention, and it shows that opening first simulation scans and sensing function flow process afterwards.After first analog scanning and sensing function (step S140) unlatching, first electrode EX1～EX4 of 240 pairs first conductive patterns of Drive and Control Circuit imports one first voltage simultaneously, and second electrode EX5～EX8 to first conductive pattern imports one second voltage simultaneously, shown in steps A 20.First voltage can for example be 5 volts (5V), and second voltage can for example be 0 volt (0V), can make like this between the two ends of first conductive pattern 211～214 to be formed with one 5 volts voltage difference.Then, third electrode EY1～the EY4 of second conductive pattern or the 4th electrode EY5～EY8 can sense a voltage division signal, and be back to the coordinate X (coordinate X) of Drive and Control Circuit 240 as sensing signal to determine a first direction with this voltage division signal, shown in steps A 30.Then, 240 couples of third electrode EY1～EY4 of Drive and Control Circuit import a tertiary voltage simultaneously, and those the 4th electrodes EY5～EY8 is imported one the 4th voltage simultaneously, shown in steps A 50.。Tertiary voltage can for example be 5 volts (5V), and the 4th voltage can for example be 0 volt (0V).Then, first electrode EX1～EX4 senses another voltage division signal, and is back to the coordinate Y (coordinate Y) of Drive and Control Circuit 240 to determine a second direction with this voltage division signal as sensing signal, shown in steps A 60.At last, in conjunction with the coordinate Y of the coordinate X of first direction and second direction with determine a touch location (X, Y), shown in steps A 70.
In above-mentioned sensing method of touch control flow process, before execution in step 20 and step 50, the step that can carry out electric pole short circuit earlier receives voltage signal more together, as step 10 and step 40.In step 10, first electrode EX1～EX4 is electrically connected to each other receiving first voltage, and second electrode EX5～EX8 is electrically connected to each other to receive second voltage.In step 40, third electrode EY1～EY4 is electrically connected to each other with the reception tertiary voltage, and the 4th electrode EY5～EY8 is electrically connected to each other to receive the 4th voltage.The notion of above-mentioned electric pole short circuit can be with reference to figure 5, and this is the contactor control device synoptic diagram according to one embodiment of the invention, and it shows that second electrode EX5～EX8 and the 4th electrode EY5～EY8 can selectivity short circuit and ground connection.Electronic circuit 240a and 240b represent a part of circuit in the Drive and Control Circuit 240, and it only is a functional schematic diagram, not in order to limit the circuit of the present invention design that it can't be otherwise.Electronic circuit 240a and 240b function to be expressed is that each second electrode EX5～EX8 and the 4th electrode EY5～EY8 can select also can select mutual short circuit ground connection Vg by signal wire 242,244 input signals via a switching of switching switch.In addition, also can design another change-over switch with signal wire 242 mutual short circuits to replace electronic circuit 240a, do not limited in the present invention, all belong in the category of the present invention as long as can reach the circuit design of identical function.In like manner, also go for being connected to the circuit design of other electrode EX1～EX4, EY1～EY8.
Under the multi-point touch pattern, can select to open second simulation and scan with sensing function or opening numeral scans and sensing function.In other words, under the multi-point touch pattern, can detect the position of touch of single-point or the position of touch of multiple spot.Otherwise, under the single-point touch pattern, only can detect the position of touch of single-point, this is and multi-point touch pattern difference.Please refer to Fig. 6, this is the sensing method of touch control process flow diagram according to one embodiment of the invention, and it shows that opening second simulation scans and sensing function flow process afterwards.At first in step B10, Drive and Control Circuit 240 is via first electrode EX1～EX4 and second electrode EX5～EX8, and (sequentially inputting) imports different voltages respectively to the two ends of first conductive pattern 211～214 in regular turn.For example, first electrode EX1～EX4 imports 5 volts voltage in regular turn, and second electrode EX5～EX8 imports 0 volt voltage accordingly in regular turn.Then in step B20, (or the 4th electrode EY5～EY8) detects at least one first sensing signal (sensingsignal) S1 and is back to Drive and Control Circuit 240 to determine the coordinate X of at least one first direction second electrode EY1～EY4.That is to say that second simulation scans with sensing function can determine a coordinate X or a plurality of coordinate X1, X2, X3....In step B30, Drive and Control Circuit 240 is imported different voltages respectively to the two ends of second conductive pattern 221～224 in regular turn by second electrode EX5～EX8 and the 4th electrode EY5～EY8.In step B40, (or the second electrode EX5～EX8) detects at least one second sensing signal S2 and is back to Drive and Control Circuit 240 to determine the coordinate Y of at least one second direction first electrode EX1～EX4.At last, in conjunction with the coordinate Y of the coordinate X of at least one above-mentioned first direction and at least one second direction with define at least one touch location (X, Y).As shown in step B520, B614, B622, the touch location that obtains at last can be one (X, Y) or a plurality of (X1, Y1) (X2, Y2) (X3, Y3) ...For example, later with reference to figure 2, touch location can be a some T1, is determined and is got by the coordinate Y of the coordinate X of a first direction and a second direction.Perhaps, also can be two some T1, T2, determined and got by coordinate Y1, the Y2 of coordinate X1, the X2 of two first directions and two second directions.Wherein, according to final needed resolution (resolution) just, can be divided into several different methods again, will be in being described in further detail after a while.
Please also refer to Fig. 2 and Fig. 6, Drive and Control Circuit 240 has at least one analog-digital converter ADC (analog-to-digital converter), for example ADC1 shown in Fig. 2 (2401) and ADC2 (2402).The one or more first sensing signal S1 that detected in step B10～B40 and the second sensing signal S2 can convert one or more first digital signal DS1 and one or more second digital signal DS2 to by analog-digital converter ADC.Determine the coordinate X of a first direction or coordinate X1, the X2 of a plurality of first directions according to the first digital signal DS1 again, X3.. and determine the coordinate Y of a second direction or coordinate Y1, Y2, the Y3.. of a plurality of second directions according to the second digital signal DS2.When the first digital signal DS1 and the second digital signal DS2 are that (during the signal of 2-bits～4-bits), definition electric resistance touch-control device 20 is to operate in the low resolution simulation model between two to four.When the first digital signal DS1 and the second digital signal DS2 were five signals more than (5-bits), definition electric resistance touch-control device 20 was to operate in the high resolving power simulation model.
Specifically, please refer to Fig. 2.Hypothesis driven control circuit 240 has at least one analog-digital converter ADC1 (2401), and the digital signal that ADC1 (2401) is exported is five (5-bits) above signal, just coordinate X or the resolution of coordinate Y can be higher than 64 in each induction block.For example, if the first voltage V1 is 5 volts, the second voltage V2 is 0 volt, can be formed with 0 volt～5 volts the voltage gradient that distributes along first direction D1 when then first conductive pattern 211～214 scans in regular turn and distribute in each first conductive pattern.4 * 4=16 the induction block of being lifted with the embodiment of the invention is example, and first conductive pattern 211～214 for example is 0.6 volt～1.4 volts at the sensing signal with second conductive pattern, 221 overlapping zones; The sensing signal that overlap the zone with second conductive pattern 222 for example is 1.6 volts～2.4 volts; The sensing signal that overlap the zone with second conductive pattern 223 for example is 2.6 volts～3.4 volts; Then for example be 3.6 volts～4.4 volts with the sensing signal of second conductive pattern, 224 overlapping regions.With touch location is that some T1 among Fig. 2 is an example, the T1 position is first conductive pattern 212 and second conductive pattern, 224 overlapping regions, the sensing signal that is detected on first direction that is to say that between 0.6 volt～1.4 volts there is the 1.4-0.6=0.8 volt this overlapping region along the scope of the sensing signal that first direction detected.If the digital signal that this moment, sensing signal was exported by ADC1 (2401) conversion is the signal of 10 (10-bits), then 0.8 volt can be divided into 1024 five equilibriums.That is to say that the resolution of the coordinate X that the T1 position is detected is 1024.Therefore, the total resolution that possessed of 4 first conductive patterns 211～214 and 4 second conductive patterns 221～224 is 1024 * 4=4096 (first direction) and 1024 * 4=4096 (second direction).
Please refer to Fig. 6, in step B50, elder generation converts at least one first digital signal SD1 and at least one second digital signal SD2 respectively to by at least one this first sensing signal S1 and at least one this second sensing signal S2 that at least one first analog-digital converter ADC 1 will detect gained, and this first digital signal SD1 and the second digital signal SD2 are the signal more than five.Then in step B510, determine the coordinate X of at least one first direction again with one or more first digital signal SD1, and the coordinate Y that determines at least one second direction with one or more second digital signal SD2.At last, in conjunction with the coordinate of the coordinate of one or more first directions and one or more second directions with define a touch location (X, Y) or a plurality of touch location (X1, Y1) (X2, Y2) ..., shown in step B520.Apparently, the touch location that is obtained according to above-mentioned steps B50, B510, B520 is to belong to the high resolving power simulation model.
On the other hand, if want to make Drive and Control Circuit 240 execution to scan with the speed of sensing quicker, then can select the flow process of low resolution simulation model, the working load when carrying out calculating to reduce Drive and Control Circuit 240 is shown in step B60, B620, B622.In step B60, at least one first sensing signal S1 that will detect gained by at least one second analog-digital converter ADC2 (2402) (shown in Figure 2) and at least one second sensing signal S2 corresponding conversion respectively become at least one first digital signal SD1 and at least one second digital signal SD2, and the first digital signal SD1 of this moment and the second digital signal SD2 are between two to the four (signals of 2-bits～4-bits).In step B620, determine the coordinate X of at least one first direction with one or more first digital signal SD1, determine the coordinate Y of at least one second direction with one or more second digital signal SD2.At last, in step B622, in conjunction with the coordinate of the coordinate of one or more first directions and one or more second directions with define a touch location (X, Y) or a plurality of touch location (X1, Y1) (X2, Y2) ...
Also have another to improve the mode of the resolution of touch location, its flow process is shown in step B60, B610, B612, B614.That is the analog scanning and the sensing of elder generation's execution low resolution, then carry out high-resolution analog scanning and sensing again.The back then execution in step B610 of step B60, respectively convert one or more first sensing signal Ss 1 and the one or more second sensing signal S2s of in step B60 detecting gained at least one three digital signal SD3 and at least one four digital signal SD4 by at least one first analog-digital converter ADC1 (2401) this moment, and three digital signal SD3 and the 4th digital signal SD4 are the signal more than five.Wherein, the resulting first sensing signal S1 and the second sensing signal S2 can keep in earlier among the step B60, therefore scanning and sensing be can not need to re-execute during execution in step B610, directly the first sensing signal S1 and the second sensing signal S2 converted to three digital signal SD3 and the 4th digital signal SD4 with the first analog-digital converter ADC1 (2401).Follow execution in step B612, Drive and Control Circuit 240 determines the coordinate X of at least one first direction with one or more these three digital signal SD3, and determines the coordinate Y of at least one second direction with one or more the 4th digital signal SD4.Last execution in step B614, in conjunction with the coordinate of the coordinate of aforesaid one or more first directions and one or more second directions with determine a touch location (X, Y) or a plurality of touch location (X1, Y1) (X2, Y2) ...On circuit design, for instance, the first analog-digital converter ADC1 (2401) can couple one with the second analog-digital converter ADC2 (2402) and switch on-off circuit (switch circuit) 2403, so that sensing signal can selectivity be handled by the first analog-digital converter ADC1 (2401) and the second analog-digital converter ADC2 (2402).Circuit design on the practice has a variety of modes, and this only is conceptual giving an example, and is not restriction Design of Drive and Control Circuit of the present invention with the given example.
Please also refer to Fig. 3 and Fig. 7, Fig. 7 is the sensing method of touch control process flow diagram according to one embodiment of the invention, its show to open numeral scan with sensing function after flow process.After step S141, then execution in step S142, this moment Drive and Control Circuit 240 from first electrode EX1～EX4 of first conductive pattern 211～214 or second electrode EX5～EX8 import a plurality of the 5th voltages (for example 5 volts) as sweep signal to carry out scanning sequence.After entering step S143, the third electrode EY1～EY4 of second conductive pattern 221～224 or the 4th electrode EY5～EY8 can detect at least one the 3rd sensing signal S3, and the 3rd sensing signal S3 is back to Drive and Control Circuit 240.Afterwards, Drive and Control Circuit 240 can selectivity enter step S144 or step S146, and the front was narrated in this part literary composition, was no longer given unnecessary details.
Please also refer to Fig. 3 and Fig. 8, Fig. 8 is the sensing method of touch control process flow diagram according to one embodiment of the invention, and it is presented at after the step S144, and Drive and Control Circuit 240 is opened the 3rd simulation and scanned and sensing function flow process afterwards.At first execution in step C10 opens one the 3rd analog scanning and sensing function.Then step C20 imports different voltage respectively to the two ends of pairing first conductive pattern of induction block that touched (first conductive pattern 211～214 wherein more than two).Then, at step C30, those ends by pairing second conductive patterns of induction block of being touched (second conductive pattern 221～224 wherein more than two) detect at least two the 4th sensing signal S4 and be back to Drive and Control Circuit 240 with the coordinate that determines a plurality of first directions (X1, X2..).At step C40, different voltage is imported at the two ends of same pairing second conductive pattern of induction block that those are touched respectively.At step C50, those ends by pairing first conductive pattern of induction block that touched detect at least two the 5th sensing signal S5 and be back to Drive and Control Circuit 240 with the coordinate that determines a plurality of second directions (Y1, Y2..).At last, coordinate (X1 in conjunction with those first directions, X2..) with the coordinate (Y1 of those second directions, Y2..) to determine a plurality of touch location (X1, Y1), (X2, Y2) ..., again according to needed resolution height, after the step C50 different flow processs can be arranged, shown in step C630, C714, C722.
For instance, please refer to Fig. 2, the pairing induction block of touch location T1 is the zone that first conductive pattern 212 and second conductive pattern 224 are overlapped to form.The pairing induction block of touch location T2 is the zone that first conductive pattern 213 and second conductive pattern 221 are overlapped to form.In step S144, Drive and Control Circuit 240 senses touch location T1 and pairing two the induction blocks of T2 in the mode of digital scanning and sensing to be had and is touched, Drive and Control Circuit 240 then directly to the different voltage of the two ends input of first conductive pattern 212,213 to carry out scanning sequence.Then, with those detected two the 4th sensing signal S4 by an end of pairing second conductive patterns of induction block (second conductive pattern 221 and 224) that touched (third electrode EY1, EY4, the 4th electrode EY5, EY8 wherein two) and be back to Drive and Control Circuit 240 with the coordinate that determines two first directions (X1, X2).In like manner, Drive and Control Circuit 240 is then directly imported different voltage to carry out scanning sequence to the two ends of second conductive pattern 221,224.Then, with those detected two the 5th sensing signal S5 by an end of pairing first conductive patterns of induction block (first conductive pattern 212 and 213) that touched (the first electrode EX2, EX3, the second electrode EX6, EX7 wherein two) and be back to Drive and Control Circuit 240 with the coordinate that determines two second directions (Y1, Y2).At last, in conjunction with the coordinate of two first directions (X1, X2) with the coordinate of two second directions (Y1, Y2) obtain touch location T1 (X1, Y1) with T2 (X2, Y2).Last step can have different flow processs according to the demand of resolution, is specified in hereinafter.
Further, the flow process of execution in step C50～step C714 is in response to high-resolution requirement.Suppose that one the 3rd digital analog converter can become analog signal conversion the digital signal more than 5, and digital analog converter can become analog signal conversion 2～4 digital signal.After the step C50, if high-resolution demand will be arranged, then direct execution in step C60, respectively convert a plurality of four sensing signal S4s of step C30 detecting gained and five sensing signal S5 of step C50 detecting gained to a plurality of five digital signal SD5s and a plurality of six digital signal SD6 by at least one the 3rd analog-digital converter this moment, and wherein the 5th digital signal SD5 and the 6th digital signal SD6 are the signal more than five.Then step C620, with those the 5th digital signals SD5 determine a plurality of first directions coordinate (X1, X2..), and with those the 6th digital signals SD6 determine a plurality of second directions coordinate (Y1, Y2..).At last in conjunction with the coordinate of a plurality of first directions (X1, X2..) with the coordinate of a plurality of second directions (Y1, Y2..) with define a plurality of touch location (X1, Y1), (X2, Y2) ..., shown in step C630.
In addition, flow process that also can execution in step C50～step C714 is to meet high-resolution requirement.Among the step C70, to detect those the 4th sensing signals S4 of gained by at least one the 4th analog-digital converter in step C30 and convert a plurality of the 5th digital signal SD5 and a plurality of the 6th digital signal SD6 respectively to those the 5th sensing signals S5 that detects gained in step C50, wherein those the 5th digital signal SD5 and the 6th digital signal SD6 are the signal between two to four.That is to say that the function of the 4th analog-digital converter is analog signal conversion to be become two to four digital signal.
Among the step C710, convert the 4th sensing signal S4 and the 5th sensing signal S5 to one the 7th digital signal SD7 and one the 8th digital signal SD8 respectively by at least one the 3rd analog-digital converter, wherein the 7th digital signal SD7 and the 8th digital signal SD8 are the signal more than five.Among the step C712, with those the 7th digital signals SD7 determine a plurality of first directions coordinate (X1, X2..), with those the 8th digital signals SD8 determine a plurality of these second directions coordinate (Y1, Y2..).At last at step C714, at last in conjunction with the coordinate of a plurality of first directions (X1, X2..) with the coordinate of a plurality of second directions (Y1, Y2..) with define a plurality of touch location (X1, Y1), (X2, Y2) ....
Moreover, if do not need high-resolution requirement, flow process that also can execution in step C50～step C722.After step C70, directly with those the 5th digital signals SD5 determine a plurality of first directions coordinate (X1, X2..), with those the 6th digital signals SD6 determine a plurality of these second directions coordinate (Y1, Y2..), shown in step C720.At last, in step C722, in conjunction with the coordinate of a plurality of first directions (X1, X2..) with the coordinate of a plurality of second directions (Y1, Y2..) with define a plurality of touch location (X1, Y1), (X2, Y2) ....
In sum, a plurality of first conductive patterns and a plurality of second conductive pattern that the present invention utilizes array to arrange mix and use the analog-driven or the type of drive of digital drive.Thus, contactor control device of the present invention can correctly carry out the single-point or the touch-control sensing of multiple spot.Especially, contactor control device of the present invention can be exported the resolution height of touch location according to the demand adjustment, thereby can adjust the burden of Drive and Control Circuit (chip for driving) according to circumstances, also increases deviser's elastic space.
Though the present invention discloses as above with embodiment; right its is not in order to limit the present invention; have in the technical field under any and know the knowledgeable usually; without departing from the spirit and scope of the present invention; when doing a little change and retouching, so protection scope of the present invention is when being as the criterion according to the content that claim defined.
Claims (14)
1. a sensing method of touch control is suitable for being applied in an electric resistance touch-control device, it is characterized in that, this electric resistance touch-control device comprises:
One contact panel, it comprises:
One first transparency carrier;
A plurality of first conductive patterns are disposed on this first transparency carrier, and respectively this first conductive pattern is parallel to each other to a first direction;
A plurality of first electrodes and second electrode are located at the two ends of those first conductive patterns respectively;
One second transparency carrier, subtend are arranged at a side of this first transparency carrier;
A plurality of second conductive patterns, be disposed on this second transparency carrier, those first conductive patterns and those second conductive patterns are between this first transparency carrier and this second transparency carrier, respectively this second conductive pattern is parallel to each other to a second direction, and wherein this first direction and this second direction intersect;
A plurality of third electrodes and the 4th electrode are located at the two ends of those second conductive patterns respectively; And
A plurality of septs are between this first transparency carrier and this second transparency carrier; And
One Drive and Control Circuit operates in a figure pattern or a simulation model in order to set this contactor control device, and this Drive and Control Circuit couples those first electrodes, those second electrodes, those third electrodes and those the 4th electrodes.
2. sensing method of touch control according to claim 1 is characterized in that, the part that those first conductive patterns and those second conductive patterns overlap mutually is defined as a plurality of induction blocks, and this sensing method of touch control also comprises:
Select operating mode, make this electric resistance touch-control device operate in a single-point touch pattern and a multi-point touch pattern one of them;
When this electric resistance touch-control device operated in this single-point touch pattern, this Drive and Control Circuit was opened one first analog scanning and sensing function;
When this electric resistance touch-control device operates in this multi-point touch pattern, this Drive and Control Circuit select to open one second analog scanning and sensing function and a digital scanning and sensing function one of them; And
When this digital scanning and sensing function are opened, have and touched if this Drive and Control Circuit only senses in those induction blocks one, then this Drive and Control Circuit is then opened this first analog scanning and sensing function.
3. sensing method of touch control according to claim 2 is characterized in that, after this Drive and Control Circuit was opened this first analog scanning and sensing function, this sensing method of touch control also comprised:
This Drive and Control Circuit is imported one first voltage simultaneously to those first electrodes, and those second electrodes are imported one second voltage simultaneously;
Those third electrodes sense a voltage division signal, and are back to this Drive and Control Circuit to define the coordinate X of this first direction;
This Drive and Control Circuit is imported a tertiary voltage simultaneously to those third electrodes, and those the 4th electrodes are imported one the 4th voltage simultaneously; And
Those first electrode senses arrive another voltage division signal, and are back to this Drive and Control Circuit to define the coordinate Y of this second direction; And
In conjunction with the coordinate Y of the coordinate X of this first direction and this second direction with determine a touch location (X, Y).
4. sensing method of touch control according to claim 3 is characterized in that, comprising:
Those first electrodes are electrically connected to each other receiving this first voltage, and those second electrodes are electrically connected to each other to receive this second voltage; And
Those third electrodes are electrically connected to each other receiving this tertiary voltage, and those the 4th electrodes are electrically connected to each other to receive the 4th voltage.
5. sensing method of touch control according to claim 2 is characterized in that, after this Drive and Control Circuit was opened this second analog scanning and sensing function, this sensing method of touch control also comprised:
This Drive and Control Circuit is imported different voltages respectively to the two ends of those first conductive patterns in regular turn by those first electrodes and those second electrodes;
Those third electrodes detect at least one first sensing signal and are back to this Drive and Control Circuit to determine the coordinate X of at least one this first direction;
This Drive and Control Circuit is imported different voltages respectively to the two ends of those second conductive patterns in regular turn by those third electrodes and the 4th electrode;
Those first electrodes detect at least one second sensing signal and are back to this Drive and Control Circuit to determine the coordinate Y of at least one this second direction; And
In conjunction with the coordinate Y of the coordinate X of at least one this first direction and at least one this second direction with define at least one touch location (X, Y).
6. sensing method of touch control according to claim 5 is characterized in that this Drive and Control Circuit comprises at least one analog-digital converter, and this sensing method of touch control comprises:
This first sensing signal and this second sensing signal convert one first digital signal and one second digital signal to by this analog-digital converter; And
Determine the coordinate X of a first direction with this first digital signal, determine the coordinate Y of a second direction with this second digital signal;
Wherein this first digital signal and this second digital signal are when two to four signal, define this electric resistance touch-control device system and operate in a low resolution simulation model;
When wherein this first digital signal and this second digital signal are signal more than five, define this electric resistance touch-control device system and operate in a high resolving power simulation model.
7. sensing method of touch control according to claim 6 is characterized in that, this Drive and Control Circuit comprises at least one first analog-digital converter and one second analog-digital converter, and this sensing method of touch control also comprises:
This electric resistance touch-control device operates in this low resolution simulation model earlier;
This first sensing signal and this second sensing signal that to detect gained by this first analog-digital converter convert this first digital signal and this second digital signal respectively to, and wherein this first digital signal and this second digital signal are the signal between two to four;
Then, this electric resistance touch-control device operates in this high resolving power simulation model again;
This first sensing signal and this second sensing signal that to detect gained by this second analog-digital converter convert a three digital signal and one the 4th digital signal respectively to, and wherein this three digital signal and the 4th digital signal are the signal more than five; And
Determine the coordinate X of this first direction with this three digital signal, determine the coordinate Y of this second direction with the 4th digital signal.
8. sensing method of touch control according to claim 2 is characterized in that, after this Drive and Control Circuit was opened this digital scanning and sensing function, this sensing method of touch control also comprised:
This Drive and Control Circuit is imported a plurality of the 5th voltages to scan from first electrode of those first conductive patterns;
The third electrode of those second conductive patterns detects at least one the 3rd sensing signal, and the 3rd sensing signal is back to this Drive and Control Circuit, to determine at least one induction block of being touched by a user.
9. sensing method of touch control according to claim 8 is characterized in that, this sensing method of touch control also comprises:
This Drive and Control Circuit senses those inductions at least two in blocks to be had and is touched, and then the corresponding induction blocks that those are touched of this Drive and Control Circuit are exported a plurality of one signals.
10. sensing method of touch control according to claim 8 is characterized in that, also comprises:
This Drive and Control Circuit senses those inductions at least two in blocks to be had and is touched, and then this Drive and Control Circuit is opened one the 3rd analog scanning and sensing function;
Different voltage is imported at two ends to those pairing first conductive patterns of induction block that touched respectively;
One end of pairing second conductive pattern of induction block that those are touched detects at least two the 4th sensing signals and is back to this Drive and Control Circuit to determine the coordinate of a plurality of these first directions;
Different voltage is imported at two ends to those pairing second conductive patterns of induction block that touched respectively;
One end of pairing first conductive pattern of induction block that those are touched detects at least two the 5th sensing signals and is back to this Drive and Control Circuit to determine the coordinate of a plurality of these second directions; And
In conjunction with the coordinate of the coordinate of those first directions and those second directions to determine a plurality of touch location.
11. sensing method of touch control according to claim 10 is characterized in that, this Drive and Control Circuit comprises at least one analog-digital converter, and this sensing method of touch control also comprises:
Those the 4th sensing signals and those the 5th sensing signals convert a plurality of the 5th digital signals and a plurality of the 6th digital signal to the coordinate that determines those first directions and the coordinate of those second directions by this analog-digital converter;
Wherein those the 5th digital signals and those the 6th digital signals are when two to four signal, define this electric resistance touch-control device system and operate in a low resolution simulation model;
When wherein those the 5th digital signals and those the 6th digital signals are signal more than five, define this electric resistance touch-control device system and operate in a high resolving power simulation model.
12. sensing method of touch control according to claim 11 is characterized in that, this Drive and Control Circuit comprises at least one the 3rd analog-digital converter and one the 4th analog-digital converter, and this sensing method of touch control also comprises:
Those the 4th sensing signals and those the 5th sensing signals that to detect gained by the 3rd analog-digital converter convert those the 5th digital signals and those the 6th digital signals respectively to, and wherein those the 5th digital signals and those the 6th digital signals are the signal between two to four;
Then, those the 5th sensing signals and those 6th senses survey signal that to detect gained by the 4th analog-digital converter convert a plurality of the 7th digital signals and a plurality of the 8th digital signal respectively to, and wherein those the 7th digital signals and those the 8th digital signals are the signal more than five; And
Determine the coordinate of a plurality of these first directions with those the 7th digital signals, determine the coordinate of a plurality of these second directions with those the 8th digital signals.
13. sensing method of touch control according to claim 1 is characterized in that, this Drive and Control Circuit comprises at least one commutation circuit, and this sensing method of touch control comprises:
This commutation circuit operates in this figure pattern or this simulation model according to a control signal to switch this contactor control device of setting.
14. sensing method of touch control according to claim 1 is characterized in that, this Drive and Control Circuit comprises at least one first analog-digital converter and one second analog-digital converter, and this sensing method of touch control comprises:
Set this contactor control device operate in a low resolution simulation model and a high resolving power simulation model one of them;
If when operating in a high resolving power simulation model, this Drive and Control Circuit is signal more than five by this first analog-digital converter to export a signal; And
If when operating in a low resolution simulation model, this Drive and Control Circuit is the signal between two to four by this second analog-digital converter to export a signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910165952 CN101996013B (en) | 2009-08-18 | 2009-08-18 | Touch sensing method of resistance-type touch device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910165952 CN101996013B (en) | 2009-08-18 | 2009-08-18 | Touch sensing method of resistance-type touch device |
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| Publication Number | Publication Date |
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| CN101996013A true CN101996013A (en) | 2011-03-30 |
| CN101996013B CN101996013B (en) | 2013-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910165952 Expired - Fee Related CN101996013B (en) | 2009-08-18 | 2009-08-18 | Touch sensing method of resistance-type touch device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102650915A (en) * | 2011-11-14 | 2012-08-29 | 北京京东方光电科技有限公司 | Digital touch screen and touch positioning method thereof |
| CN102890616A (en) * | 2012-09-26 | 2013-01-23 | 杨生虎 | Shortcut input method and shortcut input system of touch screen |
| CN103902328A (en) * | 2012-12-28 | 2014-07-02 | 联想(北京)有限公司 | Information processing method and electronic device |
| CN104423768A (en) * | 2013-09-10 | 2015-03-18 | 宸鸿科技(厦门)有限公司 | Touch control system and control method thereof |
| WO2020195835A1 (en) * | 2019-03-26 | 2020-10-01 | 株式会社デンソー | Touch position detection system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100435080C (en) * | 2006-03-15 | 2008-11-19 | 胜华科技股份有限公司 | Method for manufacturing electric resistance touch-control panel |
| JP4687559B2 (en) * | 2006-05-16 | 2011-05-25 | パナソニック株式会社 | Touch panel |
-
2009
- 2009-08-18 CN CN 200910165952 patent/CN101996013B/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102650915A (en) * | 2011-11-14 | 2012-08-29 | 北京京东方光电科技有限公司 | Digital touch screen and touch positioning method thereof |
| CN102890616A (en) * | 2012-09-26 | 2013-01-23 | 杨生虎 | Shortcut input method and shortcut input system of touch screen |
| CN102890616B (en) * | 2012-09-26 | 2016-03-30 | 杨生虎 | The shortcut input method of touch-screen and system |
| CN103902328A (en) * | 2012-12-28 | 2014-07-02 | 联想(北京)有限公司 | Information processing method and electronic device |
| CN104423768A (en) * | 2013-09-10 | 2015-03-18 | 宸鸿科技(厦门)有限公司 | Touch control system and control method thereof |
| CN104423768B (en) * | 2013-09-10 | 2018-04-17 | 宸鸿科技(厦门)有限公司 | Touch-control system and its control method |
| WO2020195835A1 (en) * | 2019-03-26 | 2020-10-01 | 株式会社デンソー | Touch position detection system |
| JP2020160712A (en) * | 2019-03-26 | 2020-10-01 | 株式会社デンソー | Touch position detection system |
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| Publication number | Publication date |
|---|---|
| CN101996013B (en) | 2013-06-12 |
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