CN101398736B - Resistive touch panel and contact point detection method thereof - Google Patents
Resistive touch panel and contact point detection method thereof Download PDFInfo
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- CN101398736B CN101398736B CN2008101754710A CN200810175471A CN101398736B CN 101398736 B CN101398736 B CN 101398736B CN 2008101754710 A CN2008101754710 A CN 2008101754710A CN 200810175471 A CN200810175471 A CN 200810175471A CN 101398736 B CN101398736 B CN 101398736B
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- 238000001514 detection method Methods 0.000 title claims abstract description 9
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims 1
- 229910003437 indium oxide Inorganic materials 0.000 claims 1
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 16
- 239000011521 glass Substances 0.000 description 8
- 239000012528 membrane Substances 0.000 description 8
- 239000000758 substrate Substances 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000000881 depressing effect Effects 0.000 description 2
- RHZWSUVWRRXEJF-UHFFFAOYSA-N indium tin Chemical compound [In].[Sn] RHZWSUVWRRXEJF-UHFFFAOYSA-N 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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Abstract
The invention discloses a resistance-type touch panel and a contact point detection method thereof, wherein the method comprises the following steps: detecting a whole area of a touch panel and calculating a first contact point during a contact point detection program; detecting a partial area containing the first contact point in the touch panel and calculating a second contact point when a contact point verification program is executed; when the first contact point overlaps with the second contact point, confirming a single contact point; and confirming the plurality of contact points when the first contact point and the second contact point do not overlap. The resistive touch panel can detect whether a user generates a single contact point, and provides the horizontal position and the vertical position of the single contact point when the user generates the single contact point.
Description
Technical field
The present invention relates to a kind of electric resistance touch-control panel, relate in particular to a kind of electric resistance touch-control panel and contact detection method thereof that can detect a plurality of contact points simultaneously.
Background technology
Along with the fast development of computer technology, contact panel also applies to mobile phone screen, computing machine screen, PDA(Personal Digital Assistant) screen widely.Basically, contact panel can be used as computer input device and replaces mouse.Then general in the contact panel at present with the utilization of electric resistance touch-control panel.
Please refer to Figure 1A, it is shown to be the side view of known electric resistance touch-control panel when not pushing.On the surface of clear glass (glass) substrate 100, form a plurality of strip indium tin oxidation (Indium Tin Oxide is called for short ITO) layer 102; In addition, on the surface of a transparent membrane (film) 110, form a plurality of strip ITO layers 112; Wherein, the strip ITO layer on the transparent glass substrate 100 102 is orthogonal with the strip ITO layer 112 on the transparent membrane 110.In addition, strip ITO layer 102 on a plurality of transparent isolating points (spacer dot) 120 isolation transparent glass substrates and the strip ITO layer 112 on the transparent membrane 110 make it can not contact with each other.
Please refer to Figure 1B, it is shown to be the side view of known electric resistance touch-control panel when pushing.When pointer or point 130 when depressing transparent membrane 110, strip ITO layer 102 on the glass substrate can be in contact with one another and produce contact point with the strip ITO layer 112 on the transparent membrane 110, therefore, the control circuit (not shown) can be learnt pointer apace or point 130 positions of depressing.
Please refer to Fig. 2, it is shown to be known electric resistance touch-control panel vertical view.For instance, dispose four electrodes around the contact panel 10, a negative Y electrode (Y-), a positive Y electrode (Y+), a negative X electrode (X-) and a positive X electrode (X+).In addition, the strip ITO layer 102 on the glass substrate presents the arrangement of vertical direction, and two ends of all strip ITO layers 102 are connected respectively to negative Y electrode (Y-) and positive Y electrode (Y+); And the strip ITO layer 112 on the transparent membrane 110 presents the arrangement of horizontal direction, and two ends of all strip ITO layers 112 are connected respectively to a negative X electrode (X-) and a positive X electrode (X+).Wherein, all strip ITO layers 102,112 can equivalence be resistance all.
In addition, control circuit 150 utilizes Y-line, Y+ line, X-line, X+ line distinctly to be connected to negative Y electrode (Y-), positive Y electrode (Y+), negative X electrode (X-) and positive X electrode (X+).When the user produced contact point on contact panel 10, control circuit 150 can be learnt the position of contact point apace.
Please refer to Fig. 3 A, it is shown for detecting the synoptic diagram that whether produces contact point on the known electric resistance touch-control panel.For the ease of explaining that Fig. 3 A～Fig. 3 C all separates the transparent membrane 110 of contact panel with clear glass machine plate 100.At first, in order to learn whether the user has the contact contact panel, the control circuit (not shown) can be connected to a voltage source (Vcc) positive X electrode (X+), earth terminal is connected to positive Y electrode (Y+), to bear X electrode (X-) and be connected to control circuit, and, do not connect (open) negative Y electrode (Y-).
Clearly, when the user did not push contact panel, strip ITO layer did not up and down contact.Therefore, control circuit can receive the voltage of Vcc in negative X electrode (X-), and, representative does not have the user to push contact panel as yet yet.
When the user utilized pointer 140 to push contact panel, strip ITO layer up and down was contacted with contact point A.Therefore, control circuit detects negative X electrode (X-) and receives voltage less than Vcc
Also promptly, can determine that the user has pushed contact panel this moment.
Please refer to Fig. 3 B, it is shown to be the synoptic diagram that calculates the contact point horizontal level on the known electric resistance touch-control panel.In order to learn the horizontal level of contact point, when control circuit detects when having point of contact A, control circuit can carry out change action, one voltage source (Vcc) is connected to positive X electrode (X+), earth terminal is connected to negative X electrode (X-), positive Y electrode (Y+) is connected to control circuit, and, (open) negative Y electrode (Y-) do not connected.
Clearly, the voltage on the positive Y electrode (Y+) is
By Fig. 3 B as can be known, when contact point A can be high more the closer to right side voltage Vx; Otherwise, when contact point A can be low more the closer to left side voltage Vx.Therefore, control circuit can carry out Vx voltage analog-to-digital conversion (analog to digitalconversion) and the horizontal level of acquisition contact point.
In like manner, please refer to Fig. 3 C, it is shown to be the synoptic diagram that calculates the contact point upright position on the known electric resistance touch-control panel.In order to learn the upright position of contact point A,
Calculate the horizontal level of contact point A when control circuit after, control circuit can carry out change action once more, one voltage source (Vcc) is connected to positive Y electrode (Y+), earth terminal is connected to negative Y electrode (Y-), positive X electrode (X+) is connected to control circuit, and, do not connect (open) negative X electrode (X-).
Clearly, the voltage on the positive X electrode (X+) is
By Fig. 3 C as can be known, when contact point A the closer to the upper end, voltage Vy can be high more; Otherwise, when contact point A the closer to the lower end, voltage Vy can be low more.Therefore, control circuit can carry out Vy voltage analog-to-digital conversion (analog todigital conversion) and the upright position of acquisition contact point.
Because known electric resistance touch-control panel is the contact panel that belongs to analog, therefore, when the user simultaneously when contact panel produces a plurality of contact point, control circuit can't be correct detects a plurality of contact points and causes misoperation.For instance, please refer to Fig. 4, it is shown to be the synoptic diagram that produces a plurality of contact points on the known electric resistance touch-control panel.When the user simultaneously produces two contact points in the A1 position of contact panel with the A2 position, suppose that the coordinate of A1 position is (x1, y1), the coordinate of A2 position be (x2, y2).Not only control circuit can't be correct detects this two contact point A1, A2, can judge out one the 3rd contact point A3 on the contrary by accident.Wherein the coordinate of A3 position be (x3, y3), and x3=(x1+x2)/2; Y3=(y1+y2)/2.
Summary of the invention
The present invention proposes a kind of contact detection method of electric resistance touch-control panel in order to solve prior art problems, comprise the following steps: when one detects the contact point program, and it is region-wide and calculate a first make contact to detect a contact panel; When a checking contact point program, comprise the subregion of first make contact in the detection contact panel, and calculate one second contact point; When first make contact and second contact point are overlapping, confirm a single contact point; And, when first make contact and second contact point are not overlapping, confirm more than one contact point.
The present invention also proposes a kind of electric resistance touch-control panel, comprising: a first direction first electrode group comprises a plurality of electrodes; One first direction, the second electrode group comprises a plurality of electrodes, and a plurality of first group of strip layer two end of this first direction are connected to first direction first electrode group and the first direction second electrode group; One second direction, the first electrode group comprises a plurality of electrodes; One second direction, the second electrode group comprises a plurality of electrodes, and a plurality of second group of strip layer two end of second direction are connected to second direction first electrode group and the second direction second electrode group; One multiplexed commutation circuit is connected to all electrodes; And, one control circuit, when one detects the contact program, it is region-wide and calculate a first make contact to detect a contact panel, when a checking contact point program, detect the subregion that comprises first make contact in the contact panel, calculate one second contact point, this control circuit is controlled multiplexed commutation circuit and optionally a first direction first connecting line is connected to part or all of electrode in the first direction first electrode group; One first direction, second connecting line is connected to part or all of electrode in the first direction second electrode group; One second direction, first connecting line is connected to part or all of electrode in the second direction first electrode group; One second direction, second connecting line is connected to part or all of electrode in the second direction second electrode group.
Electric resistance touch-control panel of the present invention can detect the user and whether produce single contact point, and in confirming that the user provides the horizontal level and the upright position of this single contact point when producing single contact point.When the user produced a plurality of contact point, control circuit can utilize the zonule to detect a plurality of contact points that the user produces on contact panel in order, and the horizontal level and the upright position of a plurality of contact points can be provided.
In order further to understand feature of the present invention and technology contents, see also following about detailed description of the present invention and accompanying drawing, yet appended accompanying drawing only provide with reference to and explanation, be not to be used for the present invention is limited.
Description of drawings
Figure 1A is shown to be the side view of known electric resistance touch-control panel when not pushing.
Figure 1B is shown to be the side view of known electric resistance touch-control panel when pushing.
Shown in Figure 2ly go out to be known electric resistance touch-control panel vertical view.
Fig. 3 A is shown for detecting the synoptic diagram that whether produces contact point on the known electric resistance touch-control panel.
Fig. 3 B is shown to be the synoptic diagram that calculates the contact point horizontal level on the known electric resistance touch-control panel.
Fig. 3 C is shown to be the synoptic diagram that calculates the contact point upright position on the known electric resistance touch-control panel.
Shown in Figure 4ly go out for producing the synoptic diagram of a plurality of contact points on the known electric resistance touch-control panel.
Fig. 5 A is shown to be electric resistance touch-control panel synoptic diagram of the present invention.
The equivalent electrical circuit that Fig. 5 B is shown when detecting the contact point program for the present invention.
The equivalent electrical circuit that Fig. 5 C is shown when verifying the contact point program for the present invention.
The shown zone of Fig. 6 A for being distinguished on the contact panel.
Fig. 6 B is shown for producing the synoptic diagram of two contact points on the contact panel simultaneously.
Fig. 6 C is shown for producing another synoptic diagram of two contact points on the contact panel simultaneously.
Shown in Figure 7ly go out the method flow diagram that detects contact point for electric resistance touch-control panel of the present invention.
Wherein, description of reference numerals is as follows:
10 contact panels
100 transparent glass substrates, 102 ITO layers
110 transparent membranes, 112 ITO layers
120 transparent isolating points 130 fingers
140 pointer, 150 control circuits
200 contact panels, 230 multiplexed commutation circuits
250 control circuits
Embodiment
Please refer to Fig. 5 A, it is shown to be electric resistance touch-control panel synoptic diagram of the present invention.The present invention is partitioned into four groups of (group) electrodes with known four electrodes (X+, X-, Y+, Y-), and (X1+～X3+, X1～X3-, Y1+～Y4+, Y1-～Y4-) form the electrode on the contact panel 200 of the present invention.For instance, three electrodes of positive X group (X+group) are positive X one electrode (X1+), positive X two electrodes (X2+) and positive X three electrodes (X3+); Three electrodes of negative X group (X-group) are negative X one electrode (X1-), negative X two electrodes (X2-) and negative X three electrodes (X3-); Four electrodes of positive Y group (Y+group) are positive Y one electrode (Y1+), positive Y two electrodes (Y2+), positive Y three electrodes (Y3+) and positive Y four electrodes (Y4+); Four electrodes of negative Y group (Y-group) are negative Y one electrode (Y1-), negative Y two electrodes (Y2-), negative Y three electrodes (Y3-) and negative Y four electrodes (Y4-).
For instance, suppose that the strip ITO layer of vertical direction has 80, understand the ITO layer that be connected 20 vertical direction between then positive Y one electrode (Y1+) and negative Y one electrode (Y1-), and the rest may be inferred.In like manner, suppose that the strip ITO layer of horizontal direction has 30, understand the ITO layer that be connected ten horizontal directions between then positive X one electrode (X1+) and negative X one electrode (X1-), and the rest may be inferred.
In addition, multiplexed commutation circuit 230 is connected to all electrodes, and can optionally the X+ line be connected to part or all of electrode in the X+ group according to the control signal of control circuit 250; The X-line is connected to part or all of electrode in the X-group; The Y+ line is connected to part or all of electrode in the Y+ group; The Y-line is connected to part or all of electrode in the Y-group.
Below introduce the action of contact panel of the present invention in detail.(I) please refer to Fig. 5 B, the equivalent electrical circuit that it is shown when detecting the contact point program for the present invention.Produce contact point in order to learn whether the user has on contact panel 200, control circuit 250 control X+ lines are connected to whole electrode in the X+ group; The X-line is connected to whole electrode in the X-group; The Y+ line is connected to whole electrode in the Y+ group; The Y-line is connected to whole electrode in the Y-group.In addition, control circuit 230 can carry out the change action first time, and (Vcc) is connected to the X+ line with a voltage source, and earth terminal is connected to the Y+ line, with the signal of X-line as judging signal, and, do not connect (open) Y-line.At this moment, control circuit 250 can detect whether All Ranges has the generation contact point on the contact panel 200.
For instance, after the user produced contact point in the B1 position, control circuit 250 can carry out the change action second time, (Vcc) is connected to the X+ line with voltage source, and earth terminal is connected to the X-line, the Vx signal of Y+ line is used for judging the horizontal level of contact point B1, and, do not connect (open) Y-line.Therefore, utilize the Vx signal of Y+ line can learn the horizontal level of contact point B1.
Then, control circuit can carry out change action for the third time once more, and (Vcc) is connected to the Y+ line with voltage source, and earth terminal is connected to the Y-line, and the Vy signal of X+ line is used for judging the upright position of contact point B1, and, do not connect (open) X-line.Therefore, the upright position that utilizes the Vy signal of X+ line can learn contact point B1.
By above-mentioned action as can be known, when detecting the contact point program, control circuit 250 can the multiplexed commutation circuit 230 of control be set at whole contact panels 200 zones with surveyed area, therefore, the user all can be calculated horizontal level and upright position at the contact point B1 that any position of contact panel 200 produces.
(II) please refer to Fig. 5 C, the equivalent electrical circuit that it is shown when verifying the contact point program for the present invention.After the horizontal level of contact point B1 and upright position calculated, control circuit 250 was learnt the regional A1 that is arranged in pairs or groups at positive Y one electrode (Y1+), negative Y one electrode (Y1-), positive X three electrodes (X3+), negative X three electrodes (X3-) in contact point B1 position.For whether desirable contact point B1 is positioned at regional A1 really, control circuit 250 control X+ lines are connected to positive X three electrodes (X3+) in the X+ group; The X-line is connected to negative X three electrodes (X3-) in the X-group; The Y+ line is connected to positive Y one electrode (Y1+) in the Y+ group; The Y-line is connected to negative Y one electrode (Y1-) in the Y-group.In addition, control circuit 230 can carry out the change action first time, and (Vcc) is connected to the X+ line with a voltage source, and earth terminal is connected to the Y+ line, with the signal of X-line as judging signal, and, do not connect (open) Y-line.At this moment, control circuit 250 can detect whether All Ranges has the contact point of generation B1 on the contact panel 200.
When control circuit 200 was determined to have point of contact B1 in the regional A1, control circuit 250 can carry out the change action second time, and (Vcc) is connected to the X+ line with voltage source, earth terminal is connected to the X-line, the Vx signal of Y+ line is used for judging the horizontal level of contact point B1, and, (open) Y-line do not connected.Therefore, utilize the Vx signal of Y+ line can learn the horizontal level of contact point B1.
Then, control circuit can carry out change action for the third time once more, and (Vcc) is connected to the Y+ line with voltage source, and earth terminal is connected to the Y-line, and the Vy signal of X+ line is used for judging the upright position of contact point B1, and, do not connect (open) X-line.Therefore, the upright position that utilizes the Vy signal of X+ line can learn contact point B1.
Therefore, the contact point horizontal level, the upright position that are obtained when the contact point horizontal level that control circuit 250 will be obtained in the time of will detecting the contact point program, upright position and checking contact point program compare, and determine that this two contact point is overlapping, and then can learn that the user produces single contact point B1.
By above-mentioned action as can be known, when checking contact point program, can the control multiplexed commutation circuit of control circuit 250 230 is dwindled surveyed area, and is set at contact panel 200 zones that comprise contact point B1 part, and verifies.When two contact point B1 that program produced are overlapping, can learn that the user produces single contact point B1.
Please refer to Fig. 6 A, its shown zone for being distinguished on the contact panel.By Fig. 6 A as can be known, control circuit 250 can be controlled the zone arbitrarily that multiplexed commutation circuit 230 is limited to contact panel 200 A1～A12.Certainly, control circuit 250 also can be controlled multiplexed commutation circuit 230 the X+ line is connected to positive X two electrodes (X2+) in the X+ group, positive X three electrodes (X3+); The X-line is connected to negative X two electrodes (X2-) in the X-group, negative X three electrodes (X3-); The Y+ line is connected to positive Y one electrode (Y1+) in the Y+ group; The Y-line is connected to negative Y one electrode (Y1-) in the Y-group, therefore, can be limited to two zones of A1 and A5.
Please refer to Fig. 6 B, it is shown for producing the synoptic diagram of two contact points on the contact panel simultaneously.When the user produces two contact point B1, B2 simultaneously on contact panel 200, the coordinate of supposing the B1 position for (x1, y1), the coordinate of B2 position be (x2, y2).Therefore, when detecting the contact point program, control circuit 250 can calculate wrong contact point B3, and to go out horizontal level be x3=(x1+x2)/the 2 and upright position is y3=(y1+y2)/2.
Then, when checking contact point program, control circuit 250 can the multiplexed commutation circuit 230 of control be limited to the A6 zone with surveyed area, and detects in the A6 zone whether any contact point is arranged, very apparently, control circuit 250 can't detect the contact point overlapping with contact point B3 in the A6 zone.Therefore, control circuit 250 can determine that the user produces a plurality of contact points.
When control circuit 250 determined that the user produces a plurality of contact point, control circuit 250 was that the multiplexed commutation circuit 230 of may command changes surveyed area in regular turn, and hunts out the physical location of a plurality of contact point B1, B2.
Please refer to Fig. 6 C, it is shown for producing another synoptic diagram of two contact points on the contact panel simultaneously.When the user produces two contact point C1, C2 simultaneously on contact panel 200, the coordinate of supposing the C1 position for (x4, y4), the coordinate of C2 position be (x5, y5).Therefore, when detecting the contact point program, control circuit 250 can calculate wrong contact point C3, and to go out horizontal level be x6=(x4+x5)/the 2 and upright position is y6=(y4+y5)/2.
Then, when checking contact point program, control circuit 250 can the multiplexed commutation circuit 230 of control be limited to the A6 zone with surveyed area, and detect in the A6 zone whether any contact point is arranged, very apparently, but control circuit 250 can detect contact point C1 in the A6 zone not have overlappingly with contact point C3, and therefore, control circuit 250 can determine that the user produces a plurality of contact points.
When control circuit 250 determined that the user produces a plurality of contact point, control circuit 250 was that the multiplexed commutation circuit 230 of may command changes surveyed area in regular turn, and hunts out the physical location of another contact point C2.
Please refer to Fig. 7, its shown method flow diagram that detects contact point for electric resistance touch-control panel of the present invention.At first, when detecting the contact point program, the detection contact panel is region-wide and calculate a first make contact, as step S10.Afterwards, when checking contact point program, detect contact panel and comprise the subregion of first make contact, and calculate one second contact point, as step S12.Overlapping when first make contact and second contact point, during as step S14, confirm that the user produces single contact point, as step S16; Otherwise, confirm that the user produces a plurality of contact points, as step S18.
From the above, use electric resistance touch-control panel of the present invention can detect the user and whether produce single contact point, and in confirming that the user provides the horizontal level and the upright position of this single contact point when producing single contact point.When the user produced a plurality of contact point, control circuit can utilize the zonule to detect a plurality of contact points that the user produces on contact panel in order, and the horizontal level and the upright position of a plurality of contact points can be provided.
In sum; though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; any those of ordinary skills; without departing from the spirit and scope of the present invention; still can do various changes and modification, so protection scope of the present invention is as the criterion when looking the scope that appending claims defines.
Claims (8)
1. the contact detection method of an electric resistance touch-control panel comprises the following steps:
When one detected the contact point program, it was region-wide and calculate a first make contact to detect a contact panel;
When a checking contact point program, detect the subregion that comprises this first make contact in this contact panel, and calculate one second contact point;
When this first make contact and this second contact point are overlapping, confirm a single contact point; And
When this first make contact and this second contact point are not overlapping, confirm more than one contact point.
2. contact detection method as claimed in claim 1 also comprises: when confirming described a plurality of contact point, this contact panel is divided into a plurality of zones and decided described a plurality of contact point in regular turn.
3. electric resistance touch-control panel comprises:
One first direction, the first electrode group comprises a plurality of electrodes;
One first direction, the second electrode group comprises a plurality of electrodes, and a plurality of first group of strip layer two end of this first direction are connected to this first direction first electrode group and this first direction second electrode group;
One second direction, the first electrode group comprises a plurality of electrodes;
One second direction, the second electrode group comprises a plurality of electrodes, and a plurality of second group of strip layer two end of this second direction are connected to this second direction first electrode group and this second direction second electrode group;
One multiplexed commutation circuit is connected to all electrodes; And
One control circuit, when one detects the contact program, it is region-wide and calculate a first make contact to detect a contact panel, when a checking contact point program, detect the subregion that comprises first make contact in the contact panel, calculate one second contact point, this control circuit is controlled this multiplexed commutation circuit and optionally a first direction first connecting line is connected to part or all of electrode in this first direction first electrode group; One first direction, second connecting line is connected to part or all of electrode in this first direction second electrode group; One second direction, first connecting line is connected to part or all of electrode in this second direction first electrode group; One second direction, second connecting line is connected to part or all of electrode in this second direction second electrode group.
4. electric resistance touch-control panel as claimed in claim 3, wherein this control circuit is when this detects the contact point program, and this control circuit is controlled this multiplexed commutation circuit this first direction first connecting line is connected to whole electrode in this first direction first electrode group; This first direction second connecting line is connected to whole electrode in this first direction second electrode group; This second direction first connecting line is connected to whole electrode in this second direction first electrode group; This second direction second connecting line is connected to whole electrode in this second direction second electrode group, determines a first make contact.
5. electric resistance touch-control panel as claimed in claim 4, wherein this control circuit is when this checking contact point program, and this control circuit determines a first contact panel zone, and this first make contact is contained in this first contact panel zone.
6. electric resistance touch-control panel as claimed in claim 5, wherein this control circuit is when this checking contact point program, this control circuit determines this first contact panel zone, controls the electrode that this multiplexed commutation circuit is connected to this first direction first connecting line part in this first direction first electrode group; This first direction second connecting line is connected to the electrode of part in this first direction second electrode group; This second direction first connecting line is connected to the electrode of part in this second direction first electrode group; This second direction second connecting line is connected in this second direction second electrode group the electrode of part, determines one second contact point.
7. electric resistance touch-control panel as claimed in claim 6 wherein, when this first make contact and this second contact point are overlapping, is confirmed a single contact point; And, when this first make contact and this second contact point are not overlapping, confirm that the user produces a plurality of contact points.
8. electric resistance touch-control panel as claimed in claim 3, wherein said a plurality of first group is that an indium oxide layer of tin constitutes with second group of strip layer.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI466004B (en) * | 2009-04-17 | 2014-12-21 | Egalax Empia Technology Inc | Method and device for resistive multi-point touch |
| JP5554517B2 (en) * | 2009-04-22 | 2014-07-23 | 富士通コンポーネント株式会社 | Touch panel position detection method and touch panel device |
| CN101593068B (en) * | 2009-06-29 | 2011-07-13 | 华硕电脑股份有限公司 | Resistive touch panel and detection method for its contact point type |
| TWI407360B (en) * | 2009-09-23 | 2013-09-01 | Egalax Empia Technology Inc | Method and device for position detection |
| WO2011065011A1 (en) * | 2009-11-26 | 2011-06-03 | 旭化成エレクトロニクス株式会社 | Touch panel device and touch input point spacing distance detection method of touch panel |
| CN109917187B (en) * | 2019-03-19 | 2021-03-02 | 京东方科技集团股份有限公司 | Resistance detection method and device of touch panel |
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| CN1815424A (en) * | 2005-02-02 | 2006-08-09 | 乐金电子（惠州）有限公司 | Dynamic correcting method for touch coutrol panel |
| CN101286107A (en) * | 2008-05-27 | 2008-10-15 | 张文 | Multi-point electric resistance touch screen |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1815424A (en) * | 2005-02-02 | 2006-08-09 | 乐金电子（惠州）有限公司 | Dynamic correcting method for touch coutrol panel |
| CN101286107A (en) * | 2008-05-27 | 2008-10-15 | 张文 | Multi-point electric resistance touch screen |
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