CN101996013B - Touch sensing method of resistance-type touch device - Google Patents
Touch sensing method of resistance-type touch device Download PDFInfo
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- CN101996013B CN101996013B CN 200910165952 CN200910165952A CN101996013B CN 101996013 B CN101996013 B CN 101996013B CN 200910165952 CN200910165952 CN 200910165952 CN 200910165952 A CN200910165952 A CN 200910165952A CN 101996013 B CN101996013 B CN 101996013B
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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 resistance type touch control device, and be particularly the sensing method of touch control of single-point touch pattern or multi-point touch pattern relevant for a kind of map function pattern of can selecting.
Background technology
Common resistance type touch control device is to adopt four-wire type or the contact panel of five-line.Yet four-wire type or the contact panel of five-line can only detect the touch-control of single-point.If allow resistance type touch control device possess the function of multi-point touch, the layout of array type need to be adopted in the conducting wire on contact panel.But even possess the electric resistance touch-control panel of the function of multi-point touch, the type of drive of the built-in is often wherein a kind of only for the driving of cover half plan or digital drive.Like this, known resistance type 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 resistance type 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 resistance type touch control device, it makes in conjunction with analog-driven and two kinds of driving methods of digital drive the ability that this resistance type touch control device possesses multiple resolution.
According to one embodiment of the invention, a kind of sensing method of touch control that is applicable to resistance type touch control device is proposed, this resistance type 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 the first conductive patterns that extend along a first direction are disposed on the first transparency carrier, and the first adjacent conductive pattern is parallel to each other.The two ends of each the first conductive pattern are respectively equipped with one first electrode and one second electrode.A plurality of the second conductive patterns that extend along a second direction are disposed on the second transparency carrier, and the second adjacent conductive pattern is parallel to each other.The first conductive pattern and the second conductive pattern are between the first transparency carrier and the second transparency carrier.The two ends of each the second conductive pattern are respectively equipped with a third electrode and one the 4th electrode.A plurality of septs are between the first transparency carrier and the second transparency carrier.Wherein, the part that mutually overlaps of those first conductive patterns and those the 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 resistance type touch control device.This sensing method of touch control comprises: select operating mode makes resistance type 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, Drive and Control Circuit can be got back to the single-point touch pattern, then opens the first analog scanning and sensing function.
Sensing method of touch control according to one embodiment of the invention, after opening the first analog scanning and sensing function, it scans with the detecting mode as follows: at first Drive and Control Circuit inputs one first voltage simultaneously to those first electrodes, and those second electrodes are inputted a second voltage simultaneously.The first voltage is for example 5 volts (5V), and second voltage is for example 0 volt (0V), makes according to this and forms a voltage difference between the two ends of each the 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 inputted a tertiary voltage simultaneously, and those the 4th electrodes are inputted one the 4th voltage simultaneously.Purpose is also in order to form a voltage difference between the two ends that make each the second conductive pattern.Afterwards, the first electrode senses of those the 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 to determine a touch location (X, Y).Wherein, when the first electrode receives the first voltage, can the first all electrodes be electrically connected to each other selectivity.At this moment, the second all electrodes also is electrically connected to each other to receive second voltage.In like manner, when third electrode receives tertiary voltage, can selectivity all third electrodes be electrically connected to each other to receive tertiary voltage, 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 the second analog scanning and sensing function.Wherein, according to the resolution of output coordinate, can be divided into again low resolution simulation model and high resolving power simulation model.
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 first open digital scanning and sensing function, then for the induction block that is touched, open the second analog scanning and sensing function, to improve the degree of accuracy of touch location.
For above-mentioned feature and advantage of the present invention can be become apparent, embodiment cited below particularly, and coordinate accompanying drawing to be described in detail below.
Description of drawings
Fig. 1 is the schematic 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 the first simulation scans and sensing function flow process afterwards.
Fig. 5 is the contactor control device schematic diagram according to one embodiment of the invention, and it shows that the 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 the 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: resistance type touch control device
120: the second transparency carriers of 110: the first transparency carriers
211～214: first conductive pattern the 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: the first electrode
EX5～EX8: second electrode EY1～EY4: third electrode
EY5～EY8: the 4th electrode
Embodiment
Fig. 1 is the schematic 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 resistance type touch control device 20 comprises a contact panel 10 and is connected to contact panel 10.
Contact panel 10 comprises one first transparency carrier 110, a plurality of the first conductive pattern 211～214, one second transparency carrier 120, a plurality of the second conductive pattern 221～224 and a plurality of sept 230.The first conductive pattern 211～214 is disposed on the first transparency carrier 110.The second transparency carrier 120 subtends are arranged at a side of the first transparency carrier 110.The second conductive pattern 221～224 is disposed on the second transparency carrier 120, and the first conductive pattern 211～214 and the second conductive pattern 221～224 are between the first transparency carrier 110 and the second transparency carrier 120.230 of septs are between the first transparency carrier 210 and the second transparency carrier 220.
The first conductive pattern 211～214 is parallel to each other to a first direction D1, and an end of the first conductive pattern 211～214 couples first electrode EX1～EX4, and couples second electrode EX5～EX6 at the relative other end.Simultaneously, the second conductive pattern 221～224 is parallel to each other to a second direction D2.One end of the 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 mutually vertical.
The present embodiment is the contact panel 10 that consisted of take four the first conductive patterns 211～214 and four the second conductive patterns 221～224 as example describing, but the invention is not restricted to this.In other embodiments, contact panel 10 can be by more or still less conductive pattern intersects to arrange and forms.In the present embodiment, the overlapped part of the first conductive pattern 211～214 and the 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 pressed contact panel 10, the position that is pressed produced corresponding sensing signal because being in contact with one another conducting between the first conductive pattern and the 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 resistance type 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, as shown in step S10, carry out the selection of operator scheme, make resistance type 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 is can be before the user operates just pre-set, can be also Drive and Control Circuit 240 automatic decisions and selecting just 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 to determine 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, if Drive and Control Circuit 240 only senses in blocks one of those inductions have and touched, Drive and Control Circuit 240 can be got back to single-point touch Mode S 12, then opens the 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 in Fig. 2 is touched, represent that Drive and Control Circuit 240 can detect a sensing signal (sensing signal), and this sensing signal means to the induction block corresponding to the first conductive pattern 212 and the second conductive pattern 224 overlapping formation.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 in block at least two of induction, Drive and Control Circuit 240 can have dual mode to determine touch location.The first is directly to determine touch location with the sensing signal that detects.The second is to open further one the 3rd analog scanning and sensing function.For example the T1 point in Fig. 2 was touched with the T2 point while, represented that 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), as shown in step S148.After, then with the above-mentioned signal deciding touch location (step S149) of two.The 3rd analog scanning and sensing function as for the second way are 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 the first simulation scans and sensing function flow process afterwards.After the first analog scanning and sensing function (step S140) unlatching, first electrode EX1～EX4 of 240 pairs of the first conductive patterns of Drive and Control Circuit inputs one first voltage simultaneously, and second electrode EX5～EX8 to the first conductive pattern inputs a second voltage simultaneously, as shown in steps A 20.The first voltage can be for example 5 volts (5V), and second voltage can be for example 0 volt (0V), can make like this between the two ends of the first conductive pattern 211～214 to be formed with the voltage difference of one 5 volts.Then, third electrode EY1～the EY4 of the 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 to determine a first direction with this voltage division signal as sensing signal, as shown in steps A 30.Then, 240 couples of third electrode EY1～EY4 of Drive and Control Circuit input a tertiary voltage simultaneously, and those the 4th electrodes EY5～EY8 is inputted one the 4th voltage simultaneously, as shown in steps A 50.。Tertiary voltage can be for example 5 volts (5V), and the 4th voltage can be for example 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, as shown in steps A 60.At last, in conjunction with the coordinate Y of the coordinate X of first direction and second direction to determine a touch location (X, Y), as 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 first carry out electric pole short circuit is receiver voltage signal together again, as step 10 and step 40.In step 10, first electrode EX1～EX4 is electrically connected to each other to receive the 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 to receive tertiary voltage, and the 4th electrode EY5～EY8 is electrically connected to each other to receive the 4th voltage.The concept of above-mentioned electric pole short circuit can be with reference to figure 5, and this is the contactor control device schematic 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 Drive and Control Circuit 240, and it is only 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 by signal wire 242,244 input signals via a switching of switching switch, also can select mutual short circuit grounding Vg.In addition, also can design another change-over switch with the mutual short circuit of signal wire 242 to replace electronic circuit 240a, do not limited in the present invention, all belong in 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 the 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 the 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 (sequentially inputting) inputs respectively different voltages to the two ends of the first conductive pattern 211～214.For example, first electrode EX1～EX4 sequentially inputs the voltage of 5 volts, and second electrode EX5～EX8 sequentially inputs the voltage of 0 volt accordingly.Then in step B20, (or the 4th electrode EY5～EY8) detects at least one the 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, the 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 sequentially inputted respectively different voltages to the two ends of the second conductive pattern 221～224 by second electrode EX5～EX8 and the 4th electrode EY5～EY8.In step B40, (or the second electrode EX5～EX8) detects at least one the 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 to 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 X of a first direction and the coordinate Y of a second direction.Perhaps, can be also two some T1, T2, determined and got by coordinate X1, the X2 of two first directions and coordinate Y1, the Y2 of 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 the ADC1 shown in Fig. 2 (2401) and ADC2 (2402).One or more the first sensing signal S1 that detect in step B10～B40 and the second sensing signal S2 can convert one or more the first digital signal DS1 and one or more the 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 resistance type 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 resistance type 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) exports is five (5-bits) above signal, and namely in each induction block, coordinate X or the resolution of coordinate Y can be higher than 64.For example, if the first voltage V1 is 5 volts, second voltage V2 is 0 volt, can be formed with the voltage gradient of 0 volt～5 volts that distributes along first direction D1 when the first conductive pattern 211～214 sequentially scans and distribute in each first conductive pattern.4 * 4=16 the induction block of being lifted take the embodiment of the present invention is as example, and the first conductive pattern 211～214 is for example 0.6 volt～1.4 volts at the sensing signal with the second conductive pattern 221 overlapping areas; With the sensing signal of the second conductive pattern 222 overlapping areas be for example 1.6 volts～2.4 volts; With the sensing signal of the second conductive pattern 223 overlapping areas be for example 2.6 volts～3.4 volts; Be for example 3.6 volts～4.4 volts with the sensing signal of the second conductive pattern 224 overlapping regions.That some T1 in Fig. 2 is as example take touch location, the T1 position is the first conductive pattern 212 and the second conductive pattern 224 overlapping regions, the sensing signal that detects on first direction is between 0.6 volt～1.4 volts, that is to say that the scope of the sensing signal that this overlapping region detects along first direction has the 1.4-0.6=0.8 volt.If the digital signal that this moment, sensing signal was exported by ADC1 (2401) conversion is the signal of 10 (10-bits), 0.8 volt can be divided into 1024 deciles.That is to say, the resolution of the coordinate X that the T1 position detects is 1024.Therefore, the total resolution that possesses of 4 the first conductive patterns 211～214 and 4 the 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, at least one this first sensing signal S1 and at least one this second sensing signal S2 that first will detect gained by at least one first analog-digital converter ADC1 convert respectively at least one the first digital signal SD1 and at least one the second digital signal SD2 to, and this first digital signal SD1 and the second digital signal SD2 are the signal more than five.Follow in step B510, then determine the coordinate X of at least one first direction with one or more the first digital signal SD1, and the coordinate Y that determines at least one second direction with one or more the 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 to define a touch location (X, Y) or a plurality of touch location (X1, Y1) (X2, Y2) ..., as shown in step B520.Apparently, the touch location that obtains 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, 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 as 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 the 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 the first digital signal SD1, determine the coordinate Y of at least one second direction with one or more the 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 to 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 as shown in step B60, B610, B612, B614.That is first carry out analog scanning and the sensing of low resolution, then carry out again high-resolution analog scanning and sensing.The rear then execution in step B610 of step B60, respectively convert the one or more first sensing signal S1s and the one or more second sensing signal S2 that in step B60 detect 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, in step B60, resulting the first sensing signal S1 and the second sensing signal S2 can first keep in, 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 to 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 processed by the first analog-digital converter ADC1 (2401) and the second analog-digital converter ADC2 (2402).Circuit design on practice has a variety of modes, and this is only conceptual giving an example, not take given example as restriction Design of Drive and Control Circuit of the present invention.
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 the first conductive pattern 211～214 or the second electrode EX5～EX8 a plurality of the 5th voltages of input (for example 5 volts) as sweep signal to carry out scanning sequence.After entering step S143, the third electrode EY1～EY4 of the 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 in this part literary composition, the front was narrated, and 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 after it was presented at step S144, Drive and Control Circuit 240 was opened the 3rd simulation and scanned and sensing function flow process afterwards.At first execution in step C10, open one the 3rd analog scanning and sensing function.Then step C20 inputs respectively different voltage to the two ends of corresponding the first conductive pattern of induction block that touched (the first conductive pattern 211～214 wherein more than two).Then, at step C30, those ends by corresponding second conductive patterns of induction block of being touched (the second conductive pattern 221～224 wherein more than two) detect at least two the 4th sensing signal S4 and are back to Drive and Control Circuit 240 to determine the coordinate (X1, X2..) of a plurality of first directions.At step C40, different voltage is inputted respectively at the two ends of same corresponding the second conductive pattern of induction block that those are touched.At step C50, an end of corresponding the first conductive pattern of induction block that those are touched detects at least two the 5th sensing signal S5 and is back to Drive and Control Circuit 240 to determine the coordinate (Y1, Y2..) of a plurality of second directions.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 step C50, different flow processs can be arranged, as shown in step C630, C714, C722.
For instance, please refer to Fig. 2, the corresponding induction block of touch location T1 is the zone that the first conductive pattern 212 and the second conductive pattern 224 overlap to form.The corresponding induction block of touch location T2 is the zone that the first conductive pattern 213 and the second conductive pattern 221 overlap to form.In step S144, Drive and Control Circuit 240 senses touch location T1 and corresponding 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 first conductive pattern 212,213 two ends input to carry out scanning sequence.Then, detected two the 4th sensing signal S4 and be back to Drive and Control Circuit 240 to determine the coordinate (X1, X2) of two first directions by an end of corresponding the second conductive patterns of induction block (the second conductive pattern 221 and 224) that touched (third electrode EY1, EY4, the 4th electrode EY5, EY8 wherein two) with those.In like manner, Drive and Control Circuit 240 then directly to the different voltage of the second conductive pattern 221,224 two ends input to carry out scanning sequence.Then, detected two the 5th sensing signal S5 and be back to Drive and Control Circuit 240 to determine the coordinate (Y1, Y2) of two second directions by an end of corresponding the first conductive patterns of induction block (the first conductive pattern 212 and 213) that touched (the first electrode EX2, EX3, the second electrode EX6, EX7 wherein two) with those.At last, obtain touch location T1 (X1, Y1) and T2 (X2, Y2) in conjunction with the coordinate (X1, X2) of two first directions and the coordinate (Y1, Y2) of two second directions.Last step can have according to the demand of resolution different flow processs, 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 the digital signal of 2～4.After step C50, if high-resolution demand is arranged, 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, determine the coordinate (X1, X2..) of a plurality of first directions, and determine the coordinate (Y1, Y2..) of a plurality of second directions with those the 6th digital signals SD6 with those the 5th digital signals SD5.At last in conjunction with the coordinate (Y1, Y2..) of the coordinate (X1, X2..) of a plurality of first directions and a plurality of second directions to define a plurality of touch location (X1, Y1), (X2, Y2) ..., as shown in step C630.
In addition, flow process that also can execution in step C50～step C714 is to meet high-resolution requirement.In 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 respectively a plurality of the 5th digital signal SD5 and a plurality of the 6th digital signal SD6 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, the function of the 4th analog-digital converter is analog signal conversion to be become the digital signal of two to four.
In step C710, convert respectively 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 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.In step C712, determine the coordinate (X1, X2..) of a plurality of first directions with those the 7th digital signals SD7, determine the coordinate (Y1, Y2..) of a plurality of these second directions with those the 8th digital signals SD8.At last at step C714, at last in conjunction with the coordinate (Y1, Y2..) of the coordinate (X1, X2..) of a plurality of first directions and a plurality of second directions to 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 determine the coordinate (X1, X2..) of a plurality of first directions with those the 5th digital signals SD5, determine the coordinate (Y1, Y2..) of a plurality of these second directions with those the 6th digital signals SD6, as shown in step C720.At last, in step C722, in conjunction with the coordinate (Y1, Y2..) of the coordinate (X1, X2..) of a plurality of first directions and a plurality of second directions to define a plurality of touch location (X1, Y1), (X2, Y2) ....
In sum, a plurality of the first conductive patterns and a plurality of the second conductive pattern that the present invention utilizes array to arrange mix and use analog-driven or the type of drive of digital drive.Thus, contactor control device of the present invention can correctly carry out single-point or the touch-control sensing of multiple spot.Especially, contactor control device of the present invention can be exported according to the demand adjustment resolution height of touch location, thereby can adjust according to circumstances the burden of Drive and Control Circuit (driving chip), also increases deviser's elastic space.
Although the present invention discloses as above with embodiment; so it is not to limit the present invention; have in technical field under any and usually know the knowledgeable; without departing from the spirit and scope of the present invention; when doing a little change and retouching, therefore working as the content that defines according to claim, protection scope of the present invention is as the criterion.
Claims (14)
1. a resistance type touch control device, is characterized in that, this resistance type touch control device comprises a contact panel and a Drive and Control Circuit:
A described contact panel comprises:
One first transparency carrier;
A plurality of the 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 the first electrodes and the second electrode are located at respectively the two ends of those the first conductive patterns;
One second transparency carrier, subtend are arranged at a side of this first transparency carrier;
A plurality of the second conductive patterns, be disposed on this second transparency carrier, those first conductive patterns and those the 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 respectively the two ends of those the second conductive patterns; And
A plurality of septs are between this first transparency carrier and this second transparency carrier; And
A described 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. a sensing method of touch control that is used for resistance type touch control device claimed in claim 1, is characterized in that, the part that those first conductive patterns and those the 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 resistance type touch control device operate in a single-point touch pattern and a multi-point touch pattern one of them;
When this resistance type 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 resistance type 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, 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 inputted one first voltage simultaneously to those first electrodes, and those second electrodes are inputted a 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 inputted a tertiary voltage simultaneously to those third electrodes, and those the 4th electrodes are inputted 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 to 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 to receive 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 to receive 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 sequentially inputted respectively different voltages to the two ends of those the first conductive patterns by those first electrodes and those the second electrodes;
Those third electrodes detect at least one the 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 sequentially inputted respectively different voltages to the two ends of those the second conductive patterns by those third electrodes and those the 4th electrodes;
Those first electrodes detect at least one the 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 to 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 the signal of two to four, define this resistance type 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 resistance type 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 the first analog-digital converter and one second analog-digital converter, and this sensing method of touch control also comprises:
This resistance type touch control device first operates in this low resolution simulation model;
This first sensing signal and this second sensing signal that to detect gained by this first analog-digital converter convert respectively this first digital signal and this second digital signal to, and wherein this first digital signal and this second digital signal are the signal between two to four;
Then, this resistance type 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 respectively a three digital signal and one the 4th digital signal 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 inputted a plurality of the 5th voltages to scan from a plurality of first electrodes of those the first conductive patterns;
Those third electrodes of those the second conductive patterns detect 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 in blocks at least two of those inductions to be had and is touched, the signal of a plurality of one of corresponding induction blocks that those the are touched output of this Drive and Control Circuit.
10. sensing method of touch control according to claim 8, is characterized in that, also comprises:
This Drive and Control Circuit senses in blocks at least two of those inductions to be had and is touched, and this Drive and Control Circuit is opened one the 3rd analog scanning and sensing function;
Different voltage is inputted respectively at two ends to those corresponding the first conductive patterns of induction block that touched;
One end of corresponding the 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 inputted respectively at two ends to those corresponding the second conductive patterns of induction block that touched;
One end of corresponding the 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 the signal of two to four, define this resistance type 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 resistance type 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 respectively those the 5th digital signals and those the 6th digital signals to, and wherein those the 5th digital signals and those the 6th digital signals are the signal between two to four;
Then, those the 4th sensing signals and those the 5th sensing signals that to detect gained by the 4th analog-digital converter convert respectively a plurality of the 7th digital signals and a plurality of the 8th digital signal 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 2 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 2 is characterized in that, this Drive and Control Circuit comprises at least one first analog-digital converter and 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 by this first analog-digital converter to export a signal as the signal more than five; And
If when operating in a low resolution simulation model, this Drive and Control Circuit by this second analog-digital converter to export a signal as the signal between two to four.
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| CN 200910165952 CN101996013B (en) | 2009-08-18 | 2009-08-18 | Touch sensing method of resistance-type touch device |
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| CN 200910165952 CN101996013B (en) | 2009-08-18 | 2009-08-18 | Touch sensing method of resistance-type touch device |
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| CN101996013A CN101996013A (en) | 2011-03-30 |
| CN101996013B true CN101996013B (en) | 2013-06-12 |
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| 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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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102650915B (en) * | 2011-11-14 | 2014-10-22 | 北京京东方光电科技有限公司 | Digital touch screen and touch positioning method thereof |
| CN102890616B (en) * | 2012-09-26 | 2016-03-30 | 杨生虎 | The shortcut input method of touch-screen and system |
| CN103902328B (en) * | 2012-12-28 | 2018-10-12 | 联想(北京)有限公司 | A kind of information processing method and electronic equipment |
| 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 |
| JP2020160712A (en) * | 2019-03-26 | 2020-10-01 | 株式会社デンソー | Touch position detection system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101038525A (en) * | 2006-03-15 | 2007-09-19 | 胜华科技股份有限公司 | Method for manufacturing electric resistance touch-control panel |
| CN101075169A (en) * | 2006-05-16 | 2007-11-21 | 松下电器产业株式会社 | Touch panel |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101038525A (en) * | 2006-03-15 | 2007-09-19 | 胜华科技股份有限公司 | Method for manufacturing electric resistance touch-control panel |
| CN101075169A (en) * | 2006-05-16 | 2007-11-21 | 松下电器产业株式会社 | Touch panel |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2003-58319A 2003.02.28 |
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