CN102645997B - Touch control panel and touch point distinguishing method of touch control panel - Google Patents
Touch control panel and touch point distinguishing method of touch control panel Download PDFInfo
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- CN102645997B CN102645997B CN201210049648.9A CN201210049648A CN102645997B CN 102645997 B CN102645997 B CN 102645997B CN 201210049648 A CN201210049648 A CN 201210049648A CN 102645997 B CN102645997 B CN 102645997B
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Abstract
The invention relates to a touch control panel, which comprises a transparent base plate, a plurality of electrode wires and a plurality of sensing region blocks, wherein the electrode wires are formed on the transparent base plate, each sensing region block is electrically connected with each corresponding electrode wire and comprises a first electrode pattern and a second electrode pattern, and the area of the first electrode pattern is greater than the area of the second electrode pattern. In addition, a touch point distinguishing method of the touch control panel comprises the following steps that when one position of the touch control panel is touched, the first electrode pattern and/or the second electrode pattern of the corresponding the sensing region sense(s) a touch signal, and then, the touch point is judged according to the signal intensity and the position of the sensing region block sensing the touch signal.
Description
Technical field
The invention relates to a kind of contact panel, relate to especially a kind of can single-point or the contact panel of multi-point touch.
Background technology
The relevant rapid technological improvement of contact panel in recent years, for example electric resistance touch-control panel, capacitance type touch-control panel, acoustic wave contact panel and optical touch control panel, be widely used on communication product, computer installation and consumption electronic products, so as to the convenience that significantly increases the usefulness of applied electronic product and use.
Capacitance type touch-control panel is generally electrode and the diaphragm at clear glass plated surface last layer indium tin oxide films.In the time that finger does not contact with contact panel, various electrodes are idiostatic, and contact panel does not have electric current to pass through; When finger is while contacting with contact panel, the static inflow contact panel in human body and produce weak current and pass through, then detecting electrode changes according to current value, can calculate the position of touching.Therefore, capacitance type touch-control panel can be inputted with finger, there is the facility of input operation, and its input operation does not need through pressing, can not allow panel have to bear repetitiousness touching stress, distortion and cause the shortcoming of infringement, and the composition simple structure of this kind of contact panel, assembly are few, and product yield is high, be applicable to producing to reduce costs in a large number.
TaiWan, China letters patent book number I344615 has disclosed a kind of condenser type individual layer touch-control sensing structure 100, as shown in Figure 1, above a conductive layer 110, form a plurality of induction blocks 120, in each induction block 120, there is the groove (not shown) of plural number section, so that induction block 120 is divided into plurality of electrodes, the feasible one-tenth one plane capacitance structure of electrode of wantonly two adjacent, these induction block 120 its two ends are electrically connected telecommunication connection module 130, and sensing signal transmission is gone out.This conductive layer 110 is conducting polymer composite or transparent conductive oxide.Can, according to the capacitance variations on this induction block 120, judge position of touch, but can only be used for single-point touch, once there be plural touch points, cannot distinguish out.Therefore, just have a kind of contact panel need to be provided, can solve aforesaid problem
Summary of the invention
An object of the present invention is that to utilize small one and large one electrode pattern be one group, taking the group electrode wires corresponding as unit is connected to, reaches the effect of the multi-point touch on contact panel.
The invention provides a kind of contact panel, comprising: a transparency carrier; A plurality of electrode wires are formed on transparency carrier; And a plurality of induction blocks, each this induction block is electrically connected corresponding each this electrode wires, and each this induction block comprises one first electrode pattern and one second electrode pattern, and the area of this first electrode pattern is greater than the area of this second electrode pattern.
The invention provides a kind of touch points resolution method of contact panel, this contact panel comprises a plurality of electrode wires and a plurality of induction block, each this induction block is electrically connected corresponding each this electrode wires, and each this induction block comprises one first electrode pattern and one second electrode pattern, the area of this first electrode pattern is greater than the area of this second electrode pattern, this touch points resolution method comprises the following steps: have a position then touched when this contact panel, this first electrode pattern of this corresponding induction block and/or the second electrode pattern sense a touching signal, judge touch points according to position and the signal magnitude of this induction block that senses this touching signal again.
The invention provides the touch points resolution method of another kind of contact panel, this contact panel comprises a plurality of electrode wires and a plurality of induction block, each this induction block is electrically connected corresponding each this electrode wires, and each this induction block comprises one first electrode pattern and one second electrode pattern, this first electrode pattern is greater than this second electrode pattern, this touch points resolution method comprises the following steps: have a position then touched when this contact panel, this first electrode pattern of this corresponding induction block or this second electrode pattern sense a touching signal, and this first electrode pattern of other these adjacent induction blocks and the second electrode pattern do not sense a touching signal, judge touch points according to position and the signal magnitude of this induction block that senses this touching signal again.
The invention provides the touch points resolution method of another kind of contact panel, this contact panel comprises a plurality of electrode wires and a plurality of induction block, each this induction block is electrically connected corresponding each this electrode wires, and each this induction block comprises one first electrode pattern and one second electrode pattern, this first electrode pattern is greater than this second electrode pattern, this touch points resolution method comprises the following steps: there is touched arriving in position when this contact panel, and the first electrode pattern of the wherein one of two adjacent induction blocks senses a touching signal, and the second electrode patterns of the wherein another one of adjacent two induction blocks are while also sensing a touching signal, the position between these two adjacent induction blocks is touch points.The invention provides the touch points resolution method of another kind of contact panel, this contact panel comprises a plurality of electrode wires and a plurality of induction block, each this induction block is electrically connected corresponding each this electrode wires, and each this induction block comprises one first electrode pattern and one second electrode pattern, this first electrode pattern is greater than this second electrode pattern, this touch points resolution method comprises the following steps: have two positions above then touched when this contact panel, this first electrode pattern and/or second electrode pattern of those corresponding induction blocks sense that two are touched signal above, judge touch points according to position and the signal magnitude of those induction blocks that sense those touching signals again.
Therefore, it is one group that contact panel of the present invention utilizes small one and large one electrode pattern, taking the group electrode wires corresponding as unit is connected to, area coverage when finger touches contact panel, the area of the electrode pattern projecting to produces corresponding signal intensity, so can point the touch position on contact panel by the judgement of signal intensity ratio.Then, recycling algorithm calculates touch coordinate, is just very easy to reach the effect of multi-point touch.
In addition, each electrode pattern of the contact panel of prior art is all connected to corresponding electrode wires, is one group, taking the group electrode wires corresponding as unit is connected to and contact panel of the present invention utilizes small one and large one electrode pattern.Compared to prior art, the electrode wires of contact panel of the present invention can reduce the quantity of half, still can reach the multi-point touch position of judgement finger on contact panel.
In order to allow above and other object of the present invention, feature and the advantage can be more obvious, below will coordinate appended diagram, be described in detail below.
Brief description of the drawings
Fig. 1 is the condenser type individual layer touch-control sensing structural plan figure of prior art;
Fig. 2 is electrode wires and the induction block distribution plan of the contact panel of one embodiment of the invention; And
Schematic diagram when Fig. 3 is user's finger touch contact panel.
Embodiment
As shown in Figure 2, be electrode wires 220 and induction block 310 distribution plans of the contact panel of one embodiment of the invention.This contact panel 200 comprises a transparency carrier 210 and a plurality of electrode wires 220 that form on transparency carrier 210.This electrode wires 220, for transmitting the wire of electronic signal, comprises the combination of plain conductor 222, transparent wire 221 or above-mentioned bi-material.Plain conductor 222 has preferably signal transport properties but the light transmission of not having, transparent wire 221 has light transmission but signal conduction is poor, therefore in embodiments of the present invention contact panel 200 is divided into viewing area and non-display area, 221, transparent wire is in viewing area; 222 of plain conductors are in non-display area, but not as limit.The formation method of the plain conductor 222 of this electrode wires 220 can adopt lithography method, ink jet printing method and woodburytype.
This contact panel 200 is also included in a plurality of induction blocks 310 that form on transparency carrier 210, and the area coverage when area of each induction block 310 can only hold 2 finger touch contact panels 200, therefore easy differentiation singly refers to or two finger on signal is processed.Each induction block 310 has a corresponding electrode wires 220, and is electrically connected with this electrode wires 220.Each induction block 310 comprises one first electrode pattern 320, one second electrode pattern 330 and a wire 340.Wire 340 is in order to the first electrode pattern 320 is electrically connected to the second electrode pattern 330, and the area of the first electrode pattern 320 is greater than the area of this second electrode pattern 330.Preferably, the area coverage when area of the first electrode pattern 320 can approximate user's finger touch contact panel 200, and the area of the second electrode pattern 330 can approximate the first electrode pattern 320 area 1/5th.
Transparent wire 221, the first electrode pattern 320, the second electrode pattern 330 and wire 340 can be transparent conductive oxide (Transparent Conductive Oxides; TCO), antimony tin (Antinomy Tin Oxide; ATO), zinc paste (Zinc Oxide; Or tin indium oxide (Indium Tin Oxide ZnO); ITO) made, and form by same processing procedure, but not as limit.In the present embodiment, transparent wire 221, the first electrode pattern 320, the second electrode pattern 330 and wire 340 are that tin indium oxide material is made.
In the present embodiment, at the adjacent electrode pattern all around of the first electrode pattern 320, be the second electrode pattern 330 of same induction block 310 and the second electrode pattern 330 of other adjacent induction block 310.In other words, the surrounding of the first electrode pattern 320 is surrounded by the second electrode pattern 330, and the surrounding of the second electrode pattern 330 is surrounded by the first electrode pattern 320.
In the present embodiment, as shown in Figure 3, the schematic diagram during for user's finger touch contact panel.The first electrode pattern 320 can be cruciform pattern, area coverage when the about user's of its pattern area finger 410 touches contact panel 200.The second electrode pattern 330 is a rectangular patterns, and its pattern area is about 1/5th of the first electrode pattern 320 areas.In another embodiment, the first electrode pattern can be large circular pattern (not shown), and the second electrode pattern can be small circular pattern (not shown).
Touching signal (for example capacitance) size that area coverage size while touching contact panel 200 due to user's finger 410 senses to this electrode pattern is directly proportional, therefore according to the signal magnitude on Different electrodes line 220, just can judge different touch points.In other words, when this contact panel 200 has a position then touched, this first electrode pattern 320 of this corresponding induction block 310 and/or the second electrode pattern 330 sense a touching signal, then judge touch points according to position and the signal magnitude of this induction block 310 that senses this touching signal.
In the time of the single-point touch of contact panel 200, there are following four kinds of situations and resolution method thereof:
The first situation: in the time that user's finger 410 is touched this contact panel 200, if only sense a touching signal at the first corresponding electrode pattern 320, and other these adjacent induction blocks 310 do not sense touching signal, represent that user's finger 410 covers the area of contact panel 200, the electrode pattern projecting to only has the first electrode pattern 320, therefore this induction block 310 can produce first signal intensity, and pass to corresponding electrode wires 220, just can learn that touch points is the position of the first electrode pattern 320.
The second situation: in the time that user's finger 410 is touched this contact panel 200, if sense a touching signal at corresponding the second electrode pattern 330, and other these adjacent induction blocks 310 do not sense a touching signal, represent that user's finger 410 covers the area of contact panel 200, the electrode pattern projecting to only has the second electrode pattern 330, therefore this induction block 310 produces secondary signal intensity (secondary signal intensity is less than first signal intensity), and pass to corresponding electrode wires 220, just can learn that touch points is the position of the second electrode pattern 330.
The 3rd situation: in the time that user's finger 410 is touched this contact panel 200, if sense a touching signal at corresponding the second electrode pattern 330, and the first electrode pattern 320 of same induction block 310 senses a touching signal, represent that user's finger 410 covers the area of contact panel 200, the electrode pattern projecting to comprises the first electrode pattern 320 and the second electrode pattern 330, therefore the 3rd corresponding signal intensity (the 3rd signal intensity is between first and second signal intensity) that this induction block 310 produces, and pass to corresponding electrode wires 220, just can learn that touch points is first and second electrode pattern 320 of same induction block 310, position between 330.
The 4th situation: in the time that user's finger 410 is touched this contact panel 200, if the first electrode pattern 320 of the wherein one of two adjacent induction blocks 310 senses a touching signal, and the second electrode pattern 330 of the wherein another one of two adjacent induction blocks 310 also senses a touching signal, represent that user's finger 410 covers the area of contact panel 200, the electrode pattern projecting to comprises the first electrode pattern 320 and second electrode pattern 330 of these two adjacent induction blocks 310, therefore the 4th corresponding signal intensity that this first electrode pattern 320 produces, and second the 5th corresponding signal intensity that produces of electrode pattern 330, can pass to corresponding electrode wires 220, again according to sensing that induction block 310 positions of touching signal and the size of touching signal judge touch points, just can learn that touch points is the position between these two adjacent induction blocks 310.
Except above-mentioned disclosed single-point contact point resolution method, the present invention also comprises multi-point touch point resolution function.When this contact panel 200 have two more than position then touched, this first electrode pattern 320 and/or second electrode pattern 330 of those corresponding induction blocks 310 sense that two are touched signal above, then judge touch points according to position and the signal magnitude of those induction blocks 310 that sense those touching signals.In other words,, in the time that this contact panel 200 has plural position touched, four kinds of situations when each position has above-mentioned single-point touch, do not repeat them here.Therefore, produce touching signal at corresponding induction block 310, and pass to corresponding electrode wires 220.According to induction block 310 positions and the signal magnitude that sense touching signal, just can judge plural touch points by one kind of resolution method or more than one the resolution method of four kinds of above-mentioned situations again.
Therefore, it is one group that contact panel of the present invention utilizes small one and large one electrode pattern, taking the group electrode wires corresponding as unit is connected to, the area of the electrode pattern that area coverage when finger touches contact panel projects to, can produce corresponding signal intensity, so can point the touch position on contact panel by the judgement of signal intensity ratio.Then, recycling algorithm calculates touch coordinate, is just very easy to reach the effect of multi-point touch.
In addition, each electrode pattern of the contact panel of prior art is all connected to corresponding electrode wires, is one group, taking the group electrode wires corresponding as unit is connected to and contact panel of the present invention utilizes small one and large one electrode pattern.Compared to prior art, the electrode wires of contact panel of the present invention can reduce the quantity of half, still can reach the multi-point touch position of judgement finger on contact panel.
In sum, be that only notebook is invented as presenting embodiment or the embodiment of the adopted technological means of dealing with problems, be not used for limiting the scope of patent working of the present invention.Be that patent claim context all and of the present invention conforms to, or the equalization of doing according to the scope of the claims of the present invention change and modification, is all the scope of the claims of the present invention and contains.
Claims (11)
1. a contact panel, is characterized in that, comprising:
One transparency carrier;
A plurality of electrode wires, are formed on this transparency carrier; And
A plurality of induction blocks, each this induction block is electrically connected corresponding each this electrode wires, and each this induction block comprises one first electrode pattern and one second electrode pattern, and the area of this first electrode pattern is greater than the area of this second electrode pattern; This induction block comprises a wire, in order to this first electrode pattern is electrically connected to this second electrode pattern.
2. contact panel as claimed in claim 1, is characterized in that, the electrode pattern all around that each this first electrode pattern is adjacent is this second electrode pattern of this second electrode pattern of same this induction block and adjacent induction block.
3. contact panel as claimed in claim 1, is characterized in that, this first electrode pattern is cruciform pattern, and this second electrode pattern is rectangular patterns.
4. contact panel as claimed in claim 1, is characterized in that, the area coverage when area of this first electrode pattern equals finger touch contact panel, the area of this second electrode pattern equal this first electrode pattern area 1/5th.
5. the touch points resolution method of a contact panel, it is characterized in that, this contact panel comprises a plurality of electrode wires and a plurality of induction block, each this induction block is electrically connected corresponding each this electrode wires, and each this induction block comprises one first electrode pattern and one second electrode pattern, the area of this first electrode pattern is greater than the area of this second electrode pattern, this induction block comprises a wire, in order to this first electrode pattern is electrically connected to this second electrode pattern, this touch points resolution method comprises the following steps:
When this contact panel has a position then touched, this first electrode pattern of this corresponding induction block and/or the second electrode pattern sense a touching signal, then judge touch points according to position and the signal magnitude of this induction block that senses this touching signal.
6. the touch points resolution method of contact panel as claimed in claim 5, is characterized in that, this touch points resolution method also comprises the following steps:
When this second electrode pattern senses a touching signal, and the first electrode pattern of same induction block senses a touching signal, this first electrode pattern and this second electrode pattern between be touch points.
7. the touch points resolution method of a contact panel, it is characterized in that, this contact panel comprises a plurality of electrode wires and a plurality of induction block, each this induction block is electrically connected corresponding each this electrode wires, and each this induction block comprises one first electrode pattern and one second electrode pattern, the area of this first electrode pattern is greater than the area of this second electrode pattern, this induction block comprises a wire, in order to this first electrode pattern is electrically connected to this second electrode pattern, this touch points resolution method comprises the following steps:
When this contact panel has a position then touched, this first electrode pattern of this corresponding induction block or this second electrode pattern sense a touching signal, and this first electrode pattern of other these adjacent induction blocks and the second electrode pattern do not sense a touching signal, then judge touch points according to position and the signal magnitude of this induction block that senses this touching signal.
8. the touch points resolution method of contact panel as claimed in claim 7, is characterized in that, this touch points resolution method also comprises the following steps:
When this first electrode pattern senses a touching signal, and the electrode pattern of other these adjacent induction blocks is not while sensing this touching signal, and this first electrode pattern is touch points.
9. the touch points resolution method of contact panel as claimed in claim 7, is characterized in that, this touch points resolution method also comprises the following steps:
When this second electrode pattern senses a touching signal, and the electrode pattern of other this adjacent induction block is not while sensing this touching signal, and this second electrode pattern is touch points.
10. the touch points resolution method of a contact panel, it is characterized in that, this contact panel comprises a plurality of electrode wires and a plurality of induction block, each this induction block is electrically connected corresponding each this electrode wires, and each this induction block comprises one first electrode pattern and one second electrode pattern, the area of this first electrode pattern is greater than the area of this second electrode pattern, this induction block comprises a wire, in order to this first electrode pattern is electrically connected to this second electrode pattern, this touch points resolution method comprises the following steps:
When this contact panel has touched arriving in position, and the first electrode pattern of the wherein one of two adjacent induction blocks senses a touching signal, and the second electrode patterns of the wherein another one of adjacent two induction blocks are while also sensing a touching signal, the positions between these two adjacent induction blocks are touch points.
The touch points resolution method of 11. 1 kinds of contact panels, it is characterized in that, this contact panel comprises a plurality of electrode wires and a plurality of induction block, each this induction block is electrically connected corresponding each this electrode wires, and each this induction block comprises one first electrode pattern and one second electrode pattern, the area of this first electrode pattern is greater than the area of this second electrode pattern, this induction block comprises a wire, in order to this first electrode pattern is electrically connected to this second electrode pattern, this touch points resolution method comprises the following steps:
When this contact panel have two more than position then touched, this first electrode pattern and/or second electrode pattern of those corresponding induction blocks sense that two are touched signal above, then judge touch points according to position and the signal magnitude of those induction blocks that sense those touching signals.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210049648.9A CN102645997B (en) | 2012-02-29 | 2012-02-29 | Touch control panel and touch point distinguishing method of touch control panel |
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| CN201210049648.9A CN102645997B (en) | 2012-02-29 | 2012-02-29 | Touch control panel and touch point distinguishing method of touch control panel |
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| CN102645997A CN102645997A (en) | 2012-08-22 |
| CN102645997B true CN102645997B (en) | 2014-11-26 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR102142855B1 (en) * | 2013-08-29 | 2020-08-31 | 미래나노텍(주) | Wired electrode for touchscreen panel, touchscreen panel using the same and manufacturing method of the same |
| CN103455206B (en) * | 2013-09-13 | 2017-01-04 | 江苏恺之电子模塑有限公司 | Sensing touch-control diaphragm and automobile-used sensing touch-control control panel |
| CN104375735B (en) | 2014-12-05 | 2018-04-10 | 合肥鑫晟光电科技有限公司 | Contact panel and display device |
| CN204808275U (en) * | 2015-06-10 | 2015-11-25 | 宸鸿科技(厦门)有限公司 | Pressure sensing means |
| CN114721554B (en) * | 2022-06-09 | 2023-03-31 | 惠科股份有限公司 | Touch panel, touch display assembly and touch display device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2113828A2 (en) * | 2008-04-30 | 2009-11-04 | TPO Displays Corp. | Display device with touch screen |
| CN101937278A (en) * | 2009-06-30 | 2011-01-05 | 宏达国际电子股份有限公司 | Touch panel for asymmetric conductive patterns, related device and method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2010191797A (en) * | 2009-02-19 | 2010-09-02 | Fujitsu Ltd | Touch panel and mobile terminal device |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2113828A2 (en) * | 2008-04-30 | 2009-11-04 | TPO Displays Corp. | Display device with touch screen |
| CN101937278A (en) * | 2009-06-30 | 2011-01-05 | 宏达国际电子股份有限公司 | Touch panel for asymmetric conductive patterns, related device and method thereof |
Non-Patent Citations (1)
| Title |
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| JP特开2010-191797A 2010.09.02 * |
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