CN103488358A - Touch panel - Google Patents
Touch panel Download PDFInfo
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- CN103488358A CN103488358A CN201210310119.XA CN201210310119A CN103488358A CN 103488358 A CN103488358 A CN 103488358A CN 201210310119 A CN201210310119 A CN 201210310119A CN 103488358 A CN103488358 A CN 103488358A
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Abstract
A touch panel including plural electrodes is provided. The plural electrodes form a sensing region and are disposed on the same plane. The sensing region has a first border and a second border substantially perpendicular to each other. The electrodes include one parallelogram electrode. The parallelogram electrode has two first edges parallel to the first border and two second edges parallel to neither the first border nor the second border.
Description
Technical field
The present invention is relevant to touch-control system, and especially to induction in order to promote the contact panel fringe region, the technology of correctness is relevant as a result.
Background technology
Along with science and technology is showing improvement or progress day by day, all more and more hommizations of the operation interface of various electronic products in recent years.For example, see through Touch Screen, the user can directly make formula, input message/word/pattern with finger or pointer in on-screen options, saves the trouble of input medias such as using keyboard or button.In fact, Touch Screen is comprised of an induction panel and the display that is arranged at the induction panel rear usually.The position that electronic installation is touched on induction panel according to the user, and the picture that display presents at that time, judge the meaning of this touching, and carry out corresponding operating result.
Existing capacitive touch control techniques can be divided into self-tolerant (self-capacitance) and mutual appearance formula (mutual-capacitance) two classes.With respect to mutual appearance formula contact panel, the single-layer electrodes structure that the self-tolerant contact panel can be more simple by processing procedure realizes having lower-cost advantage, therefore is widely used in the low order electronic product.Figure 1A is a known self-tolerant contact panel example.Be provided with a plurality of triangular-shaped electrodes (for example electrode E1, E3) and a plurality of rhombus electrode (for example electrode E2, E4, E5) in induction region 100 with empty wire frame representation.Each electrode in figure is connected to an inductor (not illustrating) separately.The situation that the user of take has touched electrode E2 zone is example, and the electric capacity that the inductor of connecting electrode E2 detects can change; Accordingly, follow-up control circuit can judge that the user touches the position that occurs in electrode E2 place.
Aforementioned inductor is arranged at outside induction region 100.Figure 1B has presented a kind of known distribution example.As shown in Figure 1B, for the electrode that is positioned at the induction region edge, for example electrode E1 and electrode E2, all can directly be connected to corresponding inductor in order to the connecting line 11 that electrode E1 is connected to inductor and by the connecting line 12 that electrode E2 is connected to inductor.Relatively, comprise a plurality of sections in order to the connecting line 13 that electrode E5 is connected to inductor: at first connecting line 13 passes through the gap between electrode E2, E4, then passes through the gap between electrode E2, E5, just is connected to subsequently corresponding inductor.Will be understood that, allly for example, in abutting connection with the electrode (electrode E4, E5) at the edge of induction region 100, all must not see through more complicated cabling and just can be connected to the inductor be positioned at outside induction region 100.
On practice, for promotion feeling is answered resolution, adjacent two interelectrode gaps are healed better little.It is wider that the above-mentioned connecting line that must pass one or more gaps but can force electrode gap to be designed to undoubtedly.Some gap even must hold many connecting lines and pass through.Because the connecting line that passes through close clearance often needs to utilize light shield, could make, therefore the production cost of contact panel can significantly rise.
On the other hand, because the material of connecting line normally also can be subject to the metal that the user touches impact, through the connecting line in gap, may cause control circuit erroneous judgement touching occurrence positions.For example, if the user touches, occur between electrode E2, E4, the connecting line 13 that passes the gap of electrode E2, E4 also can be affected, and then causes the inductor of connecting electrode E5 capacitance change to be detected.In the situation that the testing result of the inductor of connecting electrode E5 is also included in and considered, the touching occurrence positions that control circuit is judged obviously there will be error.
Summary of the invention
For addressing the above problem, the present invention proposes the new electrode shape that is applied to contact panel/configuration, by adopting the suitably parallelogram electrode of configuration, connecting line passes through the situation of electrode gap and can be avoided fully or significantly reduce, thereby can solve low induction resolution problem, the high cost of manufacture problem caused because of the connecting line configuration in prior art, and the problem of erroneous judgement touching occurrence positions.
A specific embodiment according to the present invention is a kind of contact panel, wherein comprises and forms an induction region and be positioned at conplane a plurality of electrode.This induction region has mutually perpendicular one first border and a second boundary.The plurality of electrode comprises a parallelogram electrode, has two first sides parallel with this first border, and two Second Edges that are not parallel to this first border and this second boundary
A specific embodiment according to the present invention is a kind of contact panel, wherein comprises a plurality of inductors, a plurality of connecting line and a plurality of electrode.Each connecting line one end is connected in the plurality of inductor one.The plurality of electrode is connected in the plurality of connecting line, forms an induction region and is positioned at same plane, and this induction region has mutually perpendicular one first border and a second boundary, has a plurality of gaps between the plurality of electrode.The plurality of electrode comprises a parallelogram electrode, has two first sides parallel with this first border, and two Second Edges that are not parallel to this first border and this second boundary.Wherein the set-up mode of the plurality of electrode makes the quantity optimization that the plurality of connecting line of part passes through the plurality of gap.
About the advantages and spirit of the present invention, can be further understood by following detailed description and accompanying drawings.
The accompanying drawing explanation
Figure 1A has illustrated the electrode example arrangement in an existing self-tolerant contact panel; Figure 1B is corresponding connecting line distribution example.
Fig. 2 A is according to the electrode shape/configuration schematic diagram in one embodiment of the invention; Fig. 2 B is corresponding connecting line distribution example.
Fig. 3 is the electrode shape/configuration schematic diagram according to another embodiment of the present invention.
The main element symbol description
100: induction region
E1 ~ E5: diamond pattern electrode
11,12,13: connecting line
200: induction region
210: the first borders
220: the second boundary
21,22,32: electrodes series
21A ~ 21D, 22A ~ 22D, 32A ~ 32E: electrode
L1A, L1B, L1C, L1D, L2A, L2B, L2C, L2D: connecting line
Embodiment
According to one embodiment of the invention, be a contact panel, electrode shape wherein/configuration as shown in Figure 2 A.A plurality of row are positioned at conplane electrode and form induction region 200.Each row electrode in this embodiment each self-contained two parallelogram electrodes and two right-angle triangle electrodes.The first row electrode 21 that is positioned at the picture the top of take is example, wherein comprises from left to right right-angle triangle electrode 21A, parallelogram electrode 21B, parallelogram electrode 21C, right-angle triangle electrode 21D.
By Fig. 2 A, can be found out, induction region 200 has substantially vertical each other the first border 210 and the second boundary 220. Parallelogram electrode 21B, 21C have two limits parallel with the first border 210 separately, and two other limit of parallelogram electrode 21B, 21C is to be not parallel to the first border 210 also to be not parallel to the second boundary 220.The hypotenuse of right-angle triangle electrode 21A is parallel relative with one side of parallelogram electrode 21B.The hypotenuse of right-angle triangle electrode 21D is parallel relative with one side of parallelogram electrode 21C.
Below the electrode 21A ~ 21D in Fig. 2 A and 22A ~ 22D are redrawn to the B in Fig. 2, to present a kind of distribution example that is applicable to this contact panel.As shown in Fig. 2 B, almost need not pass through electrode gap in order to the connecting line that these eight electrodes are connected to corresponding inductor, make connecting line pass through in the quantity of electrode gap and be able to optimization.Electrode (for example electrode 21A, 21D, 22A, 22D) corresponding connecting line (connecting line L1A, L1D, L2A, L2D) in abutting connection with the first border 210 of induction region 200 can extend toward left side or the right side of induction region 200 separately.The parallelogram electrode (for example electrode 21B, 21C, 22B, 22C) that is positioned at induction region 200 central areas is respectively to have a wedge angle to be adjacent to left margin or the right margin 210 of induction region 200.As shown in Fig. 2 B, extend left in the upper left corner of connecting line L1B self-electrode 21B, and extend to the right in the lower right corner of connecting line L1C self-electrode 21C, and extend left in the upper left corner of connecting line L2B self-electrode 22B, and extend to the right in the lower right corner of connecting line L2C self-electrode 22C.The wiring mode that Fig. 2 B presents can be overlapped each the row electrode be used in Fig. 2 A.
Above-mentioned electrode shape/configuration and wiring mode thereof obviously can avoid connecting line to pass through electrode gap, the optimization connecting line passes through the quantity of electrode gap thereby can solve low induction resolution problem, the high cost of manufacture problem caused because of the connecting line configuration in prior art, and the problem of erroneous judgement touching occurrence positions.
Electrode shape according to another embodiment of the present invention/configuration as shown in Figure 3.The main difference of this embodiment and last embodiment is that the quantity of the parallelogram electrode in each row electrode is more than two.The secondary series electrode 32 come from the top calculation of take is example, and right-angle triangle electrode 32A wherein, the corresponding connecting line of 32E can extend toward left side or the right side of induction region 200 separately.The corresponding connecting line of parallelogram electrode 32B can extend left from the upper left corner of parallel quadrilateral electrode 32B; The corresponding connecting line of parallelogram electrode 32D can extend to the right from the lower right corner of parallel quadrilateral electrode 32D.The connecting line that only is positioned at the most central parallelogram electrode 32C need to pass through electrode gap and extend to the left or to the right.Compared to prior art (all connecting lines that directly in abutting connection with the electrode at induction region edge, does not need to pass through electrode gap), the embodiment that Fig. 3 illustrates still can considerably reduce the distribution complexity, and the reduction electrode gap.
Embodiment by Fig. 3 can find out, the parallelogram number of electrodes in each row electrode is not with two be limited (also can be one on practice).The deviser of contact panel can according to the panel size or the total quantity of inductor (closely related with the hardware cost) determines the number of electrodes in each row electrode.The benefit that makes each row electrode only comprise two parallel four limit prescribed electrodes is, each electrode has at least one corner quite to approach the border of induction region.In addition, the height of each row electrode also is not limited with person shown in scheming.
It should be noted that the electrode shape that the present invention proposes/configuration can not only be applied in the self-tolerant contact panel, also can be applicable to hold mutually the formula contact panel.
In the situation that applied environment is the self-tolerant contact panel, except electrode and connecting line, the self-tolerant contact panel also can further comprise N inductor and a controller.N is greater than 1 positive integer, namely the total quantity of the electrode in induction region.With regard to the embodiment shown in Fig. 2 A, N equals 40.Each inductor is corresponding and be connected to an electrode, the capacitance change produced in order to detect this electrode separately.This controller can calculate and touch occurrence positions according to following equation:
Wherein the x representative is for example touched occurrence positions, in the coordinate of a first direction (horizontal direction X), and y represents that this for example touches occurrence positions, in the coordinate of a second direction (vertical direction Y), and i is the integer index of scope between 1 to N, C
irepresent the capacitance change that i inductor records, X
irepresent the center of gravity coordinate of electrode on first direction that i inductor connects, Y
irepresent the center of gravity coordinate of electrode on second direction that i inductor connects.
In the situation that applied environment is mutual appearance formula contact panel, according to each electrode in contact panel of the present invention, can be switched in turn drive electrode.The electrode shape presented with Fig. 2 A/be configured to example, when electrode, 21A is set to drive electrode, with electrode 21A, has the electrode 21B on adjacent, parallel limit and electrode 22B can be set to receiving electrode.Subsequently, when electrode, 21B is set to drive electrode, and being has electrode 21A, 21C, the 22C on adjacent, parallel limit to be set to receiving electrode with electrode 21B.It is similar that its positioning principle and known rhombus electrode hold the formula contact panel mutually.
As mentioned above, the present invention proposes the new electrode shape that is applied to contact panel/configuration, by adopting the suitably parallelogram electrode of configuration, connecting line passes through the situation of electrode gap and can be avoided fully or significantly reduce, pass through the quantity in the plurality of gap with a plurality of connecting lines of optimization, thereby can solve low induction resolution problem, the high cost of manufacture problem caused because of the connecting line configuration in prior art, and the problem of erroneous judgement touching occurrence positions.
By the above detailed description of preferred embodiments, hope can be known description feature of the present invention and spirit more, and not with the above-mentioned preferred embodiment disclosed, category of the present invention is limited.On the contrary, its objective is that hope can contain in the category of the scope of the claims of being arranged in of various changes and tool equality institute of the present invention wish application.
Claims (14)
1. a contact panel comprises:
A plurality of electrodes, form an induction region and be positioned at same plane, and this induction region has mutually perpendicular one first border and a second boundary, and the plurality of electrode comprises:
One parallelogram electrode, have two first sides parallel with this first border, and two Second Edges that are not parallel to this first border and this second boundary.
2. contact panel as claimed in claim 1, is characterized in that, the plurality of electrode further comprises:
One right angle triangular-shaped electrodes, have a hypotenuse and a right-angle side, and this hypotenuse is parallel with this two Second Edge of this parallelogram electrode, and this first right-angle side is parallel to this second boundary.
3. contact panel as claimed in claim 2, is characterized in that, each the row electrode in the plurality of electrode each self-contained parallelogram electrode and two right-angle triangle electrodes.
4. contact panel as claimed in claim 2, is characterized in that, each the row electrode in the plurality of electrode each self-contained two parallelogram electrodes and two right-angle triangle electrodes.
5. contact panel as claimed in claim 1, it is characterized in that, further comprise N inductor and a controller, N is greater than a positive integer of 1, the capacitance change that this N inductor produces in order to detect the plurality of electrode, this controller calculates one according to following equation and touches occurrence positions:
Wherein x represents that this touches occurrence positions in the coordinate of a first direction, and y represents that this touches occurrence positions in the coordinate of a second direction, and i is the integer index of scope between 1 to N, C
irepresent the capacitance change that i inductor records, X
irepresent the center of gravity coordinate of electrode on this first direction that i inductor connects, Y
irepresent the center of gravity coordinate of electrode on this second direction that i inductor connects.
6. contact panel as claimed in claim 1, is characterized in that, locator meams is self-tolerant or is mutual appearance formula.
7. contact panel as claimed in claim 1, it is characterized in that, further comprise a plurality of inductors and a controller, each the plurality of electrode is a drive electrode in a time point, a plurality of electrodes that are adjacent are a plurality of receiving electrodes, the mutual capacitance variable quantity that the plurality of inductor produces in order to detect the plurality of receiving electrode.
8. a contact panel comprises:
A plurality of inductors;
A plurality of connecting lines, each connecting line one end is connected in the plurality of inductor one;
A plurality of electrodes, be connected in the plurality of connecting line, and the plurality of electrode forms an induction region and is positioned at same plane, and this induction region has mutually perpendicular one first border and a second boundary, has a plurality of gaps between the plurality of electrode, and the plurality of electrode comprises:
One parallelogram electrode, have two first sides parallel with this first border, and two Second Edges that are not parallel to this first border and this second boundary,
Wherein the set-up mode of the plurality of electrode makes the quantity optimization that the plurality of connecting line of part passes through the plurality of gap.
9. contact panel as claimed in claim 8, is characterized in that, the plurality of electrode further comprises:
One right angle triangular-shaped electrodes, have a hypotenuse and a right-angle side, and this hypotenuse is parallel with this two Second Edge of this parallelogram electrode, and this first right-angle side is parallel to this second boundary.
10. contact panel as claimed in claim 9, is characterized in that, each the row electrode in the plurality of electrode each self-contained parallelogram electrode and two right-angle triangle electrodes.
11. contact panel as claimed in claim 9, is characterized in that, each the row electrode in the plurality of electrode each self-contained two parallelogram electrodes and two right-angle triangle electrodes.
12. contact panel as claimed in claim 8, it is characterized in that, the quantity of the plurality of inductor is N, and N is greater than a positive integer of 1, the capacitance change that this N inductor produces in order to detect the plurality of electrode, this controller calculates one according to following equation and touches occurrence positions:
Wherein x represents that this touches occurrence positions in the coordinate of a first direction, and y represents that this touches occurrence positions in the coordinate of a second direction, and i is the integer index of scope between 1 to N, C
irepresent the capacitance change that i inductor records, X
irepresent the center of gravity coordinate of electrode on this first direction that i inductor connects, Y
irepresent the center of gravity coordinate of electrode on this second direction that i inductor connects.
13. contact panel as claimed in claim 8, is characterized in that, locator meams is self-tolerant or is mutual appearance formula.
14. contact panel as claimed in claim 8, it is characterized in that, each the plurality of electrode is a drive electrode in a time point, and a plurality of electrodes that are adjacent are a plurality of receiving electrodes, the mutual capacitance variable quantity that the plurality of inductor produces in order to detect the plurality of receiving electrode.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201261657003P | 2012-06-07 | 2012-06-07 | |
| US61/657,003 | 2012-06-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103488358A true CN103488358A (en) | 2014-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210310119.XA Pending CN103488358A (en) | 2012-06-07 | 2012-08-28 | Touch panel |
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|---|---|
| CN (1) | CN103488358A (en) |
| TW (1) | TWI467456B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110262704A (en) * | 2019-05-13 | 2019-09-20 | 深圳大学 | A kind of the spatial position tracking and system of target |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI628567B (en) * | 2015-05-28 | 2018-07-01 | 鴻海精密工業股份有限公司 | Touch device |
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| CN104636016B (en) * | 2008-02-28 | 2018-12-18 | 3M创新有限公司 | Touch screen sensor |
| US8941595B2 (en) * | 2008-10-01 | 2015-01-27 | Integrated Device Technology, Inc. | Alternating, complementary conductive element pattern for multi-touch sensor |
| CN201425740Y (en) * | 2009-05-05 | 2010-03-17 | 天马微电子股份有限公司 | Capacitor touch-control display screen |
| CN101996007A (en) * | 2009-08-18 | 2011-03-30 | 深圳欧菲光科技股份有限公司 | Wiring method for capacitive touch screen electric conductive circuit |
| US9652089B2 (en) * | 2010-11-09 | 2017-05-16 | Tpk Touch Solutions Inc. | Touch panel stackup |
| CN202049468U (en) * | 2011-03-03 | 2011-11-23 | 禾威科技股份有限公司 | Touch panel device with double sensing interface |
| CN202120244U (en) * | 2011-06-29 | 2012-01-18 | 余仁杰 | Single-layer capacitive touch sensing component for parallel sawtooth |
| CN202120243U (en) * | 2011-06-29 | 2012-01-18 | 余仁杰 | Parallel square single-layer capacitive touch sensing element |
| CN102279680A (en) * | 2011-08-25 | 2011-12-14 | 黄山市中显微电子有限公司 | Light, thin and low-cost capacitive touch screen touch panel and manufacturing method thereof |
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2012
- 2012-08-03 TW TW101128046A patent/TWI467456B/en not_active IP Right Cessation
- 2012-08-28 CN CN201210310119.XA patent/CN103488358A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102203698A (en) * | 2008-08-14 | 2011-09-28 | 麦孚斯公司 | Touch sensing panel including bidirectional adjacent electrodes, and touch sensing apparatus |
| CN102439550A (en) * | 2009-05-22 | 2012-05-02 | 泰科电子公司 | System and method for a projected capacitive touchscreen having grouped electrodes |
| CN101840295A (en) * | 2010-03-10 | 2010-09-22 | 敦泰科技(深圳)有限公司 | Multipoint touch detection method of capacitance touch screen |
| US20110279406A1 (en) * | 2010-05-13 | 2011-11-17 | Sony Corporation | Capacitance sensor and information input apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110262704A (en) * | 2019-05-13 | 2019-09-20 | 深圳大学 | A kind of the spatial position tracking and system of target |
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| Publication number | Publication date |
|---|---|
| TW201351248A (en) | 2013-12-16 |
| TWI467456B (en) | 2015-01-01 |
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Application publication date: 20140101 |