CN101526869B - Touch panel with improved electrode patterns - Google Patents
Touch panel with improved electrode patterns Download PDFInfo
- Publication number
- CN101526869B CN101526869B CN2008100074599A CN200810007459A CN101526869B CN 101526869 B CN101526869 B CN 101526869B CN 2008100074599 A CN2008100074599 A CN 2008100074599A CN 200810007459 A CN200810007459 A CN 200810007459A CN 101526869 B CN101526869 B CN 101526869B
- Authority
- CN
- China
- Prior art keywords
- conductive silver
- contact panel
- electrode pattern
- silver road
- formula
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The invention relates to a touch panel with improved electrode patterns, which comprises an insulated substrate, a conducting layer formed on the surface of the insulated substrate, and electrode patterns formed on the surface of the conducting layer and arranged along the edges of the touch panel, wherein the electrode patterns comprise a plurality of rows of conductive silver circuits; and each row of conductive silver circuits are provided with a plurality of equal long electrodes arranged at equal intervals. Electrode number of each row of the conductive silver circuits, and relative positions of any two rows of the conductive silver circuits are redesigned, and the electrode number of each row of the conductive silver circuits is calculated by a formula; moreover, the electrode patterns are provided with the parallelly connected conductive silver circuits so as to eliminate printing errors possibly generated in the printing procedure of the conductive silver circuits, or the phenomena of uneven impedance distribution and electric field distribution caused by uneven resistance distribution on an ITO conductive layer.
Description
Technical field
The present invention relates to a kind of contact panel of improved electrode pattern, particularly change the contact panel of edge electrodes arranged in patterns.
Background technology
Known contact panel can be divided into resistance-type, condenser type, acoustic wave, and four kinds of optical profile types etc. according to principle of induction.Wherein electric resistance touch-control panel is the cheapest and contact panel that is widely used of cost in the market, but capacitance type touch-control panel is just obtaining more concern and employing.
Electric resistance touch-control panel is mainly by superimposed the forming of two groups of ITO (tin indium oxide) conductive layer up and down; Utilize pressure to make the upper/lower electrode conducting during use; Predict panel voltage via controller and change and calculate contacting points position, to obtain the position signalling of input, for example: U.S. Patent No. No.4; 822,957 technology promptly is widely used in 5 wire resistance type contact panels of Elo Touch company.
Capacitance type touch-control panel forms a conducting stratum (like metal oxide layer) on glass substrate, form electrode pattern in its surface again, covers layer protecting film at last on the top layer, can accomplish capacitance type touch-control panel.The principle of its induction is by four corners of screen voltage to be provided; Form an electric field through electrode pattern at glass surface again; When the finger touches screen can make electric field cause electric current and the generation pressure drop in the contact position; Through the detecting of controller,, can calculate the pressing position of finger according to the difference of four corner ratios of current distance.For example: U.S. Patent No. No.4,198,539,4,293,734,4,371,746 and 6,781,579 have just disclosed a kind of technology that is used in capacitance type touch-control panel.
Generally speaking, touch panel has the evaluation index of three keys, comprising: three of the width of the linearity of electric field (linear response), electrode structure complexity and electrode pattern etc.; Wherein the linearity of electric field is relevant with the accuracy of touch panel; The complexity of electrode pattern then is directly proportional with manufacturing cost; Electrode pattern is because be distributed in around the contact panel, so the width of electrode pattern then can directly influence the size of the scope capable of using of Touch Screen.Electrode pattern is made up of the conductive silver road of being located at the conducting stratum surface (or claiming silver slurry line); Be milder variation tendency by conductive silver road heal height and the distributing position of the transparency electrode number that forms that be staggered; Then the charge distribution density of whole contact panel also becomes milder variation; Otherwise then be more violent variation, can revise linearity near the electric field of frame region according to this principle; On the other hand, because conductive silver way order is higher, therefore can effectively improve the resistance in four corners, conductive silver road, the frame on the conductive silver road little resistance that heals is lower, but low excessively resistance also is unfavorable for the touching control panel controller running.
Therefore, how improving the linearity of contact panel electric field, reduce the complexity of electrode pattern and the width that reduces electrode pattern, is to endeavour improved target for contact panel designs with the fabricator.
Summary of the invention
The objective of the invention is to, a kind of electrode pattern that forms uniform low voltage electric field is provided.
For realizing above-mentioned purpose; The present invention is a kind of contact panel of improved electrode pattern; Include: insulated substrate, be formed at the conducting stratum on insulated substrate surface, and the electrode pattern that is formed at the conducting stratum surface and disposes along the contact panel edge; Electrode pattern comprises the conductive silver road of multiple row, and this conductive silver road of arbitrary row has a plurality of electrodes isometric and that uniformly-spaced arrange that are all; The present invention is through designing the electrode number on each row conductive silver road again, and the mode of wantonly two row adjacent conductive silver road the relative position of each other, makes the linearity of electric field be improved.
Another object of the present invention at the width that reduces electrode pattern, so that make contact panel housing minimization, increases the scope capable of using of Touch Screen and the assembling space of Touch Screen.
For realizing above-mentioned purpose, feasible pattern of the present invention is through designing the electrode number on each row conductive silver road again; And wantonly two row adjacent conductive silver road the relative position of each other; And the number of electrodes on each row conductive silver road utilizes formula to calculating, moreover the present invention sets up the conductive silver road of parallel connection in electrode pattern; To offset the conductive silver road in the issuable printing error of printing process or ITO conductive layer resistance skewness, the distribution of impedance that causes and Electric Field Distribution uneven phenomenon.
In sum, the present invention reaches the uneven problem of Electric Field Distribution of utilizing the arrangement that changes electrode pattern to reach the known contact panel of improvement.
Description of drawings
Fig. 1 is the structural map of capacitance type touch-control panel.
Fig. 2 is the conductive silver road location drawing of one embodiment of the invention.
Fig. 3 is the conductive silver road location drawing of the preferred embodiment of the present invention.
Fig. 4 is the equivalent circuit diagram of Fig. 3.
Fig. 5 is the equipotential line distribution plan of preferred embodiment electrode pattern among Fig. 3, shows the equipotential line distribution plan in one of them corner of contact panel.
Fig. 6 is U.S. Patent No. No.6,781,579 equipotential line distribution plan.
Fig. 7 is U.S. Patent No. No.4,198,539,4,293,734 and 4,371,746 equipotential line distribution plan.
Embodiment
At first see also Fig. 1, generally speaking, capacitance type touch-control panel 10 includes:
One insulated substrate 20, for example glass plate;
One conducting stratum 30 is formed at the surface of this insulated substrate 20, and common person is a kind of metal oxide layer; And
One electrode pattern; Be formed at the surface and the configuration of this conducting stratum 30 along the edge of this contact panel 10; This electrode pattern has comprised: the conductive silver road 40 that multiple row is arranged in parallel with each other, the conductive silver road 40 of any row all have a plurality of electrodes 41 isometric and that uniformly-spaced arrange.
According to first kind of preferred embodiment of the present invention, total columns on conductive silver road 40 is represented with X, is example with Fig. 2, wherein with relatively near the center person of contact panel 10 towards relatively away from contact panel 10 center persons' direction in regular turn with L
1, L
2, L
3, L
4Expression, therefore, the conductive silver road L of arbitrary row
1, L
2, L
3, L
4The number N of electrode 41 can determine by following (formula 1)～(formula 4) respectively;
L
N=1Conductive silver way order N=2
(X-n+2)+ 1... (formula 1);
L
N=2Conductive silver way order N=2
(X-n+1)+ 3... (formula 2);
L
N=3Conductive silver way order N=2
(X-n+2)-1... (formula 3);
L
N=4Conductive silver way order N=2
(X-n+2)+ 6... (formula 4).
As shown in Figure 2, total columns on the conductive silver road 40 of embodiment of the invention electrode pattern can be 4 row, and the width of electrode pattern then maintains below the 2.8mm, wherein near the center person of contact panel 10 with L
1Expression, 40 on remaining 3 row conductive silver road with towards relatively away from the direction at contact panel 10 centers in regular turn with L
2, L
3, L
4Expression; And according to each row conductive silver road L of aforementioned formula decision
1, L
2, L
3, L
4The number of electrode 41, can know following rule, wherein:
Conductive silver road L
2In wantonly 1 electrode 41, will cross-over connection conductive silver road L
1In 4 electrodes 41;
Conductive silver road L
3In wantonly 1 electrode 41, will cross-over connection conductive silver road L
2In 3 electrodes 41.
And the conductive silver road location drawing of the preferred embodiment of the present invention sees also Fig. 3, wherein L
1, L
2, L
3, L
4The number N of electrode 41 still can be respectively by (formula 1)～(formula 4) decision, and L wherein
3Each electrode 41 between increase by a conductive silver road 40 and connect L
2With L
4Form the state of parallel connection, its parallelly connected equivalent circuit diagram sees also Fig. 4 resistor symbols R wherein when representing in arbitrary row conductive silver road 40 that 41 at any two adjacent electrodes are via these conducting stratum 30 conductings, by these conducting stratum 30 formed impedances, L
2With L
4The state that forms parallel connection can reduce voltage difference, makes equipotential line 51 (the being shown in Fig. 5) distribution uniform of this contact panel 10, offsets this conductive silver road 40 issuable printing error or ito surface resistance skewness in printing process.
Seeing also Fig. 5 at last, is to be the equipotential line distribution plan according to the electrode pattern of preferred embodiment among Fig. 3, shows equipotential line 51 distribution plans in these contact panel 10 one of them corners; Wherein each bar line is represented the equipotential line 51 in the electric field, more evenly (more straight) of its distribution, and then the performance of the linearity of contact panel 10 is better; In Fig. 5, be marginarium 50 with enclosed with dashed lines person, generally speaking, distinguish more evenly (more straight) that the equipotential line 51 in 50 distributes on the edge of, then contact panel 10 linear performances also can be better; With known technology U.S. Patent No. No.6 for example, 781,579 equipotential line distribution plan (see figure 6), and U.S. Patent No. No.4; 198,539,4; 293,734 and 4,371; 746 equipotential line distribution plan (see figure 7) can find that relatively Fig. 6 and Fig. 7 are poor than the present invention all in the linearity performance of this marginarium.
In addition, if the equipotential line of the lower right-hand corner in Fig. 5 51 is more represented this equipotential line 51 comparatively near ideal position near 60 of the reference lines of wherein representing with center line, otherwise if the right side of this reference line 60 representes that then error is bigger more partially; Likewise, with the known art of the present invention and Fig. 6 and Fig. 7, the equipotential line 51 that can find the lower right-hand corner of the present invention in Fig. 5 is near this reference line 60, and therefore, linear performance of the present invention is superior to the known technology of Fig. 6 and Fig. 7.
In sum, the present invention is through changing arrangement formula and this conductive silver road L on this conductive silver road 40
2With L
4Between set up the state that a conductive silver road 40 forms parallel connection; And then improve the linearity performance of its equipotential line 51, reach that the Electric Field Distribution of improving this contact panel 10 is linear more, this contact panel 10 housing minimizations and offset this conductive silver road 40 purpose such as issuable printing error or ito surface resistance skewness in printing process, though the present invention discloses as above with preferred embodiment; Right its is not in order to limit the present invention; Any those skilled in the art are not breaking away from the spirit and scope of the present invention, and a little change and the retouching done; All should be covered by among the present invention, so protection scope of the present invention is as the criterion when looking the claim person of defining.
Claims (3)
1. the contact panel of an improved electrode pattern is characterized in that, said contact panel (10) comprising:
Insulated substrate (20);
Conducting stratum (30) is formed at the surface of said insulated substrate (20); And
Electrode pattern; Be formed at conducting stratum (30) surface and along the edge configuration of said contact panel (10); Said electrode pattern comprises: the conductive silver road (40) of multiple row; The said conductive silver road (40) of arbitrary row has a plurality of electrodes (41) isometric and that uniformly-spaced arrange that are all, and total columns on said conductive silver road (40) is X, and by relatively near said contact panel (10) center person towards relatively away from said contact panel (10) center person's direction called after L in regular turn
n(n=1～4), and electrode (41) number N on the said conductive silver road (40) of arbitrary row can be by 4 decisions of following formula 1 to formula;
L
N=1Conductive silver road (40) number N=2
(4-n+2)+ 1.. formula 1;
L
N=2Conductive silver road (40) number N=2
(4-n+1)+ 3.. formula 2;
L
N=3Conductive silver road (40) number N=2
(4-n+2)-1.. formula 3;
L
N=4Conductive silver road (40) number N=2
(4-n+2)+ 6.. formula 4.
2. the contact panel of improved electrode pattern according to claim 1 is characterized in that, the width of said electrode pattern is less than 2.8mm.
3. the contact panel of improved electrode pattern according to claim 1 is characterized in that, L
N=2With L
N=4Between set up said conductive silver road (40) and be connected to each other and form parallel connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100074599A CN101526869B (en) | 2008-03-07 | 2008-03-07 | Touch panel with improved electrode patterns |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100074599A CN101526869B (en) | 2008-03-07 | 2008-03-07 | Touch panel with improved electrode patterns |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101526869A CN101526869A (en) | 2009-09-09 |
| CN101526869B true CN101526869B (en) | 2012-05-02 |
Family
ID=41094748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100074599A Expired - Fee Related CN101526869B (en) | 2008-03-07 | 2008-03-07 | Touch panel with improved electrode patterns |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101526869B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109918B (en) * | 2009-12-23 | 2013-01-09 | 谊达光电科技股份有限公司 | Touch panel with tuning fork electrode pattern |
| CN102109919B (en) * | 2009-12-23 | 2013-03-13 | 谊达光电科技股份有限公司 | Touch panel with I-type electrode pattern |
| TWI407341B (en) * | 2009-12-23 | 2013-09-01 | Edamak Corp | Touch panel with tonometer-shaped electrode pattern |
| CN101950230B (en) * | 2010-09-21 | 2012-02-22 | 友达光电股份有限公司 | Capacitive touch sensor and capacitive touch device |
| CN103049144A (en) | 2011-10-14 | 2013-04-17 | 宸鸿科技(厦门)有限公司 | Touch control device figure and manufacture method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6781579B2 (en) * | 1998-10-09 | 2004-08-24 | 3M Innovative Properties Company | Touch panel with improved linear response and minimal border width electrode pattern |
| CN101051255A (en) * | 2006-04-06 | 2007-10-10 | 达诺光电股份有限公司 | Capacitance type touch-control panel with improved electrode pattern |
-
2008
- 2008-03-07 CN CN2008100074599A patent/CN101526869B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6781579B2 (en) * | 1998-10-09 | 2004-08-24 | 3M Innovative Properties Company | Touch panel with improved linear response and minimal border width electrode pattern |
| CN101051255A (en) * | 2006-04-06 | 2007-10-10 | 达诺光电股份有限公司 | Capacitance type touch-control panel with improved electrode pattern |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101526869A (en) | 2009-09-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10222919B2 (en) | Capacitive touch screen and single layer wiring electrode array | |
| EP2725463B1 (en) | Metal mesh type touch screen panel | |
| CN102109940B (en) | Capacitive sensing device and method for manufacturing same and capacitive sensing system | |
| TWI426436B (en) | Capacitive touch panel with multiple zones | |
| EP3751401B1 (en) | Touch screen panel | |
| KR101323004B1 (en) | Capacity type touch screen panel | |
| EP2530565B1 (en) | Electrode structure of the touch panel, method thereof and touch panel | |
| CN106201145B (en) | A kind of touch screen, its production method and display device | |
| US20090213082A1 (en) | Touch panel with improved electrode pattern | |
| CN100462908C (en) | Capacitance type touch-control panel with improved electrode pattern | |
| KR101101053B1 (en) | Touch Screen Panel and fabrication method thereof | |
| US20100328248A1 (en) | Capacitive touch screen with reduced electrode trace resistance | |
| US9395854B2 (en) | Touch sensing panel | |
| US20100156811A1 (en) | New pattern design for a capacitive touch screen | |
| US20100073310A1 (en) | Light transmission touch panel | |
| CN104956297A (en) | Projected capacitive touch panel with a silver-inclusive transparent conducting layer(s) | |
| US8797290B2 (en) | Sense electrode spine interpolation | |
| CN102654806A (en) | Touch control panel and manufacturing method thereof | |
| CN103713785A (en) | Touch screen panel | |
| CN102799332B (en) | A kind of embedded single layer capacitance touch-screen | |
| CN101526869B (en) | Touch panel with improved electrode patterns | |
| CN103135831B (en) | Contact panel | |
| CN201489506U (en) | Capacitor type touch control panel | |
| CN212624007U (en) | Touch electrode layer and touch display device | |
| US20130265279A1 (en) | Position measuring apparatus and driving method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120502 Termination date: 20160307 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |