CN101882039A - Capacitive touch screen with electrode chains arranged in folding way - Google Patents
Capacitive touch screen with electrode chains arranged in folding way Download PDFInfo
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Abstract
The invention discloses a capacitive touch screen with electrode chains arranged in a folding way. The capacitive touch screen comprises a first electrode cluster and a second electrode cluster, wherein the electrode clusters comprise respective electrode chains; each electrode chain consists of plate electrodes which are connected in series; in the first electrode cluster, a first electrode group is formed in a way that each two neighboring first electrode chains are of a group; in the second electrode cluster, a second electrode group is formed in the way that each two neighboring second electrode chains are of a group; and the two electrode chains of each electrode group are both electrically connected to ports of a signal generating/processing module arranged outside of a touch screen so that each electrode group is electrically connected with the corresponding port of the signal generating/processing module respectively. In the capacitive touch screen, under the situation of maintaining the number of leading-out wires unchanged, the number of the electrode chains is doubled, and the space between the electrode chains are reduced, so that detection data volume and detection sensitivity of a touch action is improved; and simultaneously the effective permittivity of the touch screen is improved.
Description
Technical field
The present invention relates to touch action is changed the input media of capable telecommunications number, particularly relate to the input media that the detecting touch action causes capacitance variations, i.e. capacitive touch screen.
Background technology
The prior art capacitive touch screen forms capacitor array by the electric field between the conductive material surface in touch screen surface, when touch-screen is had touch action, the electric capacity in touched zone changes in the described capacitor array, just can accurately judge touch position by the amplitude of detecting capacitance variations and the zone of capacitance variations, and these touch position centre coordinate data are inputed to relevant data processing equipment, thereby will be converted to the input data mode to the touch action of screen.Form principle according to capacitor array, described capacitive touch screen is divided into self-capacitance touch-screen and mutual capacitance touchscreens.Shown in Fig. 6-1, described self-capacitance touch-screen comprise the strip shaped electric poles 211 of the horizontal expansion of mutually orthogonal ' and the strip shaped electric poles 111 of longitudinal extension ', and equipotential battery lead plate 300 '.The strip shaped electric poles 211 of described horizontal expansion ' can also be the electrode chains that is in series by a plurality of battery lead plates, same, the strip shaped electric poles 111 of described longitudinal extension ' also can be the electrode chains that is in series by a plurality of battery lead plates.Described transverse electrode 211 ' and longitudinal electrode 111 ' all by the signal generation/processing module 900 of extension line electrical connection touch-screen peripheral hardware, the port of a signal generation/processing module 900 of every strip electrode correspondence.Electrode 111 ' and 211 ' and equipotential battery lead plate 300 ' between form self-capacitance.The capacitance that described signal generation/processing module 900 is used to send pumping signal and detects the equivalent capacity array that produces under the pumping signal effect is to detect the zone that self-capacitance changes.Shown in Fig. 6-2, described mutual capacitance touchscreens comprise the strip shaped electric poles 211 of horizontal expansion ' and the strip shaped electric poles 111 of longitudinal extension ', strip shaped electric poles 111 ', 211 ' between form mutual capacitance.For mutual capacitance touchscreens, described signal generation/processing module 900 comprises and is used to produce the pumping signal module 910 of signal and is used to detect the sensing detecting processing module 920 that capacitor array changes.Usually, the electrode that is electrically connected pumping signal module 910 is called drive electrode, the electrode that is electrically connected sensing detecting processing module 910 is called sensing electrode, therefore, in this example, transverse electrode 211 ' be sensing electrode, longitudinal electrode 111 ' be drive electrode.Described transverse electrode 211 ' be electrically connected described longitudinal electrode 111 ' be electrically connected one to one one to one with the port of sensing detecting processing module 920 by the port of extension line with pumping signal module 910 by extension line.
Self-capacitance touch-screen and mutual capacitance touchscreens all exist following defective and deficiency:
1. in order to obtain more contact screen information amount, increase the electric capacity quantity that the touching zone covers, need dwindle as far as possible strip shaped electric poles 111 ', 211 ' or electrode chains between spacing, but, in order to reduce data processing amount, save cost, need reduce as far as possible described strip shaped electric poles 111 ', 211 ' or the quantity of electrode chains, this arrangement of electrodes structural design that has limited touch-screen;
2. because the restriction of above-mentioned arrangement of electrodes structure causes the effective capacitance rate of prior art touch-screen also to be difficult to significantly improve.
Summary of the invention
The technical problem to be solved in the present invention is to avoid the deficiencies in the prior art part and proposes a kind ofly under the situation of keeping touch-screen extension line quantity, increases electrode chains quantity, and improves the capacitive touch screen of effective capacitance rate.
The present invention solve the technical problem can be by realizing by the following technical solutions:
Design, make a kind of capacitive touch screen of electrode chains arranged in folding way, be included in the same plane or adhere to first electrode group and second electrode group in the plane separately separately; Described first electrode group comprises 2 * M bar, first electrode chains that center line is parallel to each other, and described second electrode group comprises 2 * N bar, second electrode chains that center line is parallel to each other; Arbitrary first electrode chains and arbitrary second electrode chains are orthogonal, and M and N are the natural numbers greater than 1; Described first electrode chains comprises first battery lead plate of at least one series connection, and described second electrode chains comprises second battery lead plate of at least two series connection.Especially, in described first electrode group, by per two adjacent first electrode chains is that one group mode is divided into groups to form M and organized the first electrode group, two first electrode chains of each first electrode group all are electrically connected to the port of the signal generation/processing module of touch-screen peripheral hardware, make M organize M the port electrical connection of respective signal generation/processing module respectively of the first electrode group; In described second electrode group, by per two adjacent second electrode chains is that one group mode is divided into groups to form N and organized the second electrode group, two second electrode chains of each second electrode group all are electrically connected to the port of the signal generation/processing module of touch-screen peripheral hardware, make N organize N the port electrical connection of respective signal generation/processing module respectively of the second electrode group.
Especially, when described capacitive touch screen was mutual capacitance touchscreens, described signal generation/processing module comprised pumping signal module and sensing detecting processing module.
Described first battery lead plate is made with transparent conductive material.Described second battery lead plate also can be to make with transparent conductive material.Described transparent conductive material is tin indium oxide Indium Tin Oxide, is called for short ITO, or antimony-doped tin oxide Antimony TinOxide, is called for short ATO.
Described first battery lead plate is rectangular, rhombus or hexagon shape.Described second battery lead plate also can be rectangular, rhombus or hexagon shape.
Compare with prior art, the present invention's's " capacitive touch screen of electrode chains arranged in folding way " technique effect is:
For touch-screen of the same area, the present invention is keeping under the constant situation of extension line quantity, promptly keeps data processing amount and does not become under the situation, and electrode chains quantity is doubled, spacing between the electrode chains is dwindled, thereby has improved detecting data amount and detecting sensitivity to touch action; In addition, the capacitive electrode plates area that the present invention forms touch screen surface reduces, and has improved the effective capacitance rate of touch-screen.
Description of drawings
Fig. 1 is the arrangement of electrodes synoptic diagram of the present invention's " capacitive touch screen of electrode chains arranged in folding way " first embodiment,
Fig. 2 is that described first embodiment arranges corresponding relatively synoptic diagram with the prior art touch screen electrode;
Fig. 3 is the arrangement of electrodes synoptic diagram of second embodiment of the invention;
Fig. 4 is the arrangement of electrodes synoptic diagram of third embodiment of the invention;
Fig. 5 is the arrangement of electrodes synoptic diagram of fourth embodiment of the invention;
Fig. 6 is the synoptic diagram of prior art capacitive touch screen, comprises
Fig. 6-the 1st, the synoptic diagram of prior art self-capacitance touch-screen;
Fig. 6-the 2nd, the synoptic diagram of prior art mutual capacitance touchscreens.
Embodiment
Be described in further detail below in conjunction with each embodiment shown in the accompanying drawing.
The present invention proposes a kind of capacitive touch screen of electrode chains arranged in folding way,, is included in the same plane or adheres to first electrode group 100 and second electrode group 200 in the plane separately separately to shown in Figure 5 as Fig. 1, Fig. 3; Described first electrode group 100 comprises center line 2 * M bar parallel to each other first electrode chains 110, and described second electrode group comprises center line 2 * N bar parallel to each other second electrode chains 210; Arbitrary first electrode chains 110 is orthogonal with arbitrary second electrode chains 210, and M and N are the natural numbers greater than 1; Described first electrode chains 110 comprises first battery lead plate 111 of at least one series connection, and described second electrode chains comprises second battery lead plate 211 of at least two series connection.Described first electrode group 100 and second electrode group 200 are when same plane, need between them, do necessary insulation processing, for example, cross section between electrode chains 110,210 is provided with insulating material, perhaps between them, directly lay the very thin insulation diaphragm of one deck, to prevent to adhere to separately the battery lead plate of two electrode groups or the line short circuit between them.
The present invention is in described first electrode group 100, by per two adjacent first electrode chains 110 is that one group mode is divided into groups to form M and organized the first electrode group 112, two first electrode chains 110 of each first electrode group 112 all are electrically connected to the port of the signal generation/processing module of touch-screen peripheral hardware, make M organize M the port electrical connection of respective signal generation/processing module respectively of the first electrode group 112; In described second electrode group 200, by per two adjacent second electrode chains 210 is that one group mode is divided into groups to form N and organized the second electrode group 212, two second electrode chains 210 of each second electrode group 212 all are electrically connected to the port of the signal generation/processing module of touch-screen peripheral hardware, make N organize N the port electrical connection of respective signal generation/processing module respectively of the second electrode group 210.
The arrangement of electrodes frame mode of mentioning for the present invention, both be applicable to that the self-capacitance touch-screen also was applicable to mutual capacitance touchscreens, according to following examples, those of ordinary skills rely on basic electricity general knowledge promptly such scheme can be applied to self-capacitance touch-screen or mutual capacitance touchscreens, and conversion arbitrarily between them.Following examples of the present invention are that example describes with mutual capacitance touchscreens only.When described capacitive touch screen was mutual capacitance touchscreens, described signal generation/processing module comprised pumping signal module and sensing detecting processing module.
Be electrically connected signal generation/processing module with described first electrode chains 110 and second electrode chains 210 and arrangement of electrodes do not produced any influence, therefore, in embodiment of the invention accompanying drawing, do not relate to signal generation/processing module, just with X1, X2, X3 ..., and Y1, Y2, Y3 ... the port numbers of representation signal generation/processing module.
Generally, described first battery lead plate, 111 usefulness transparent conductive materials are made, and described second battery lead plate 211 also can be made with transparent conductive material.Described transparent conductive material is tin indium oxide Indium Tin Oxide, is called for short ITO, or antimony-doped tin oxide Antimony Tin Oxide, is called for short ATO.In addition, between described first battery lead plate 111, between second battery lead plate 211, connecting line and the extension line between first electrode chains 110, second electrode chains 210 can be made with above-mentioned transparent conductive material.
First embodiment of the invention, as shown in Figure 1, described touch-screen comprises six first electrode chains 110 and six second electrode chains 210, i.e. M=N=3.This touch-screen has six extension lines so.The structure of electrode group 112,212 of the present invention can be understood as, and a strip electrode chain is drawn from the middle part, and this strip electrode chain folding is formed, and therefore, the present invention is a kind of structure of folding electrode chain.The electrode chains 110,210 of described touch-screen all is only to comprise a strip rectangular electrode plate 111,211.As shown in Figure 2, first embodiment of the invention compared with the prior art, if adopt all man-to-man outer mode of touch-screen of drawing of the every strip electrode chain of prior art, same area touch-screen, show as dotted line among Fig. 2, it is constant to keep extension line quantity, the prior art touch-screen will be provided with three longitudinal electrode chains 111 ' and three transverse electrode chains 211 '.For make electrode chains 111 ', 211 ' evenly distribute, longitudinal electrode chain 111 ' spacing be that Dy ' should be the twice of described first embodiment, first electrode chains, 110 space D y, i.e. Dy '=2 * Dy; Transverse electrode chain 211 ' spacing be that Dx ' should be the twice of described first embodiment, second electrode chains, 110 space D x, i.e. Dx '=2 * Dx.Among Fig. 2, C ' indicating section and to adopt identical dashed area with this part be exactly each electric capacity that adopts the prior art capacitive touch screen to form; And C1 to C4 indicating section and to adopt identical hatched part with them be exactly each electric capacity that first embodiment of the invention forms.Clearly, compared with the prior art, arrangement of electrodes scheme of the present invention has increased electrode chains quantity keeping under the constant situation of extension line quantity, has dwindled the spacing between the electrode chains, simultaneously, also increased the quantity that forms electric capacity between the battery lead plate, caused the touch action of identical area coverage, the affected electric capacity quantity of the described touch-screen of first embodiment of the invention is more than prior art, the quantity of information of obtaining is more, has improved the sensitivity to the touch action detecting; Simultaneously, the present invention reduces the battery lead plate area that forms electric capacity, especially reduced between the battery lead plate over against area, make the coverage expansion of outer bound pair capacitance, thereby improved the effective capacitance rate of touch-screen.
Second embodiment of the invention, as shown in Figure 3, described touch-screen comprises four first electrode chains 110 and six second electrode chains 210, i.e. M=2, N=3.Every first electrode chains 110 all is that the battery lead plate 111 by rhombus is in series, and per two adjacent electrode chains 111 all are electrically connected to same port, form the first electrode group 112.Every second electrode chains 210 all is that the battery lead plate 211 by rhombus is in series, and per two adjacent electrode chains 211 all are electrically connected to same port, form the second electrode group 212.This structure makes between first electrode 111 and second electrode 211 does not have pole plate over against part, promptly first electrode 111 is over against the space between second electrode 211, second electrode 211 is over against the space between first electrode 111, thereby further improved the effective capacitance rate of electric capacity.
Third embodiment of the invention, as shown in Figure 4, described touch-screen comprises six first electrode chains 110 and six second electrode chains 210, i.e. M=N=3.Every first electrode chains 110 all is that the battery lead plate 111 by the strip rectangle is in series, and per two adjacent electrode chains 111 all are electrically connected to same port.Every second electrode chains 210 all is to be in series by foursquare battery lead plate 211, and per two adjacent electrode chains 211 all are electrically connected to same port, form the second electrode group 212.
Fourth embodiment of the invention, as shown in Figure 5, described touch-screen comprises four first electrode chains 110 and four second electrode chains 210, i.e. M=N=2.Every first electrode chains 110 all is that the battery lead plate 111 by rhombus is in series, and per two adjacent electrode chains 111 all are electrically connected to same port.Every second electrode chains 210 all is to be in series by hexagonal battery lead plate 211, and per two adjacent electrode chains 211 all are electrically connected to same port, form the second electrode group 212.
Identical reason with first embodiment of the invention, above-mentioned second to the 4th embodiment obviously can both reach technique effect of the present invention, promptly keeping under the constant situation of extension line quantity, increased electrode chains quantity, dwindled the spacing between the electrode chains, simultaneously, also increased the quantity that forms electric capacity between the battery lead plate, cause the touch action of identical area coverage, the affected electric capacity quantity of described touch-screen is more than prior art, the quantity of information of obtaining is more, has improved the sensitivity to the touch action detecting; Simultaneously, the present invention reduces the battery lead plate area that forms electric capacity, especially reduced between the battery lead plate over against area, make the coverage expansion of outer bound pair capacitance, thereby improved the effective capacitance rate of touch-screen.
Claims (7)
1. the capacitive touch screen of an electrode chains arranged in folding way is included in the same plane or adheres to first electrode group (100) and second electrode group (200) in the plane separately separately; Described first electrode group (100) comprises 2 * M bar, first electrode chains (110) that center line is parallel to each other, and described second electrode group comprises 2 * N bar, second electrode chains (210) that center line is parallel to each other; Arbitrary first electrode chains (110) is orthogonal with arbitrary second electrode chains (210), and M and N are the natural numbers greater than 1; Described first electrode chains (110) comprises first battery lead plate (111) of at least one series connection, and described second electrode chains comprises second battery lead plate (211) of at least two series connection; It is characterized in that:
In described first electrode group (100), by per two adjacent first electrode chains (110) is that one group mode is divided into groups to form M and organized the first electrode group (112), two first electrode chains (110) of each first electrode group (112) all are electrically connected to the port of the signal generation/processing module of touch-screen peripheral hardware, make M organize M the port electrical connection of respective signal generation/processing module respectively of the first electrode group (112);
In described second electrode group (200), by per two adjacent second electrode chains (210) is that one group mode is divided into groups to form N and organized the second electrode group (212), two second electrode chains (210) of each second electrode group (212) all are electrically connected to the port of the signal generation/processing module of touch-screen peripheral hardware, make N organize N the port electrical connection of respective signal generation/processing module respectively of the second electrode group (210).
2. the capacitive touch screen of electrode chains arranged in folding way according to claim 1 is characterized in that:
Described capacitive touch screen is a mutual capacitance touchscreens, and described signal generation/processing module comprises pumping signal module and sensing detecting processing module.
3. the capacitive touch screen of electrode chains arranged in folding way according to claim 1 is characterized in that:
Described first battery lead plate (111) is made with transparent conductive material.
4. described according to claim, it is characterized in that:
Described second battery lead plate (211) is made with transparent conductive material.
5. according to the capacitive touch screen of claim 3 or 4 described electrode chains arranged in folding way, it is characterized in that:
Described transparent conductive material is tin indium oxide Indium Tin Oxide, is called for short ITO, or antimony-doped tin oxide Antimony Tin Oxide, is called for short ATO.
6. the capacitive touch screen of electrode chains arranged in folding way according to claim 1 is characterized in that:
Described first battery lead plate (111) is rectangular, rhombus or hexagon shape.
7. the capacitive touch screen of electrode chains arranged in folding way according to claim 1 is characterized in that:
Described second battery lead plate (211) is rectangular, rhombus or hexagon shape.
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| CN 201010148913 CN101882039A (en) | 2010-03-16 | 2010-03-16 | Capacitive touch screen with electrode chains arranged in folding way |
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| CN 201010148913 CN101882039A (en) | 2010-03-16 | 2010-03-16 | Capacitive touch screen with electrode chains arranged in folding way |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102622151A (en) * | 2012-04-27 | 2012-08-01 | 苏州瀚瑞微电子有限公司 | Wiring structure of double-layer information technology outsourcing (ITO) |
| CN102750056A (en) * | 2011-04-19 | 2012-10-24 | 赛普拉斯半导体公司 | Capacitive panel scanning with reduced number of sensing circuits |
| CN102968216A (en) * | 2012-11-30 | 2013-03-13 | 信利光电(汕尾)有限公司 | Touch screen and manufacturing method thereof |
| CN103034352A (en) * | 2011-09-28 | 2013-04-10 | 晨星软件研发(深圳)有限公司 | Touch control sensing device and electronic system provided with touch control sensing device |
| CN103246384A (en) * | 2012-02-14 | 2013-08-14 | 三星显示有限公司 | Touch panel |
| CN103513832A (en) * | 2012-06-20 | 2014-01-15 | 彩优微电子(昆山)有限公司 | Mutual capacitance detecting method based on mutual capacitance touch screen module |
| CN104635973A (en) * | 2013-11-14 | 2015-05-20 | 胜华科技股份有限公司 | touch panel and driving method thereof |
| CN105474332A (en) * | 2013-07-05 | 2016-04-06 | 印可得株式会社 | Conductive transparent substrate manufacturing method, and conductive transparent substrate |
| WO2016082373A1 (en) * | 2014-11-27 | 2016-06-02 | 京东方科技集团股份有限公司 | In cell touch screen and touch control detection method thereof, and display device |
| CN107390914A (en) * | 2017-06-13 | 2017-11-24 | 深圳欧菲光科技股份有限公司 | Contact panel and display device |
| CN103970373B (en) * | 2013-01-25 | 2018-05-08 | 北京京东方光电科技有限公司 | The panel of capacitive touch screen and the capacitive touch screen comprising the panel |
| CN108563373A (en) * | 2018-04-04 | 2018-09-21 | 华勤通讯技术有限公司 | Mutual capacitance touch sensing and touch control terminal |
| US20190339813A1 (en) * | 2015-04-24 | 2019-11-07 | Apple Inc. | Merged floating pixels in a touch screen |
| CN110914792A (en) * | 2017-11-24 | 2020-03-24 | 华为技术有限公司 | Touch display panel, flexible display device and manufacturing method thereof |
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| CN102750056A (en) * | 2011-04-19 | 2012-10-24 | 赛普拉斯半导体公司 | Capacitive panel scanning with reduced number of sensing circuits |
| CN102750056B (en) * | 2011-04-19 | 2017-09-22 | 谱瑞科技股份有限公司 | The capacitive panels scanning of sensing circuit quantity reduction |
| CN103034352A (en) * | 2011-09-28 | 2013-04-10 | 晨星软件研发(深圳)有限公司 | Touch control sensing device and electronic system provided with touch control sensing device |
| CN103034352B (en) * | 2011-09-28 | 2015-10-07 | 晨星软件研发(深圳)有限公司 | The electronic system of touch induction installation and utilization touch induction installation |
| CN103246384B (en) * | 2012-02-14 | 2017-08-04 | 三星显示有限公司 | Touch panel |
| CN103246384A (en) * | 2012-02-14 | 2013-08-14 | 三星显示有限公司 | Touch panel |
| CN102622151A (en) * | 2012-04-27 | 2012-08-01 | 苏州瀚瑞微电子有限公司 | Wiring structure of double-layer information technology outsourcing (ITO) |
| CN103513832A (en) * | 2012-06-20 | 2014-01-15 | 彩优微电子(昆山)有限公司 | Mutual capacitance detecting method based on mutual capacitance touch screen module |
| CN102968216A (en) * | 2012-11-30 | 2013-03-13 | 信利光电(汕尾)有限公司 | Touch screen and manufacturing method thereof |
| CN103970373B (en) * | 2013-01-25 | 2018-05-08 | 北京京东方光电科技有限公司 | The panel of capacitive touch screen and the capacitive touch screen comprising the panel |
| CN105474332A (en) * | 2013-07-05 | 2016-04-06 | 印可得株式会社 | Conductive transparent substrate manufacturing method, and conductive transparent substrate |
| CN105474332B (en) * | 2013-07-05 | 2018-02-16 | 印可得株式会社 | The manufacture method and conductive clear substrate of conductive clear substrate |
| CN104635973A (en) * | 2013-11-14 | 2015-05-20 | 胜华科技股份有限公司 | touch panel and driving method thereof |
| US9626055B2 (en) | 2014-11-27 | 2017-04-18 | Boe Technology Group Co., Ltd. | In-cell touch screen, touch detection method thereof and display device |
| WO2016082373A1 (en) * | 2014-11-27 | 2016-06-02 | 京东方科技集团股份有限公司 | In cell touch screen and touch control detection method thereof, and display device |
| US20190339813A1 (en) * | 2015-04-24 | 2019-11-07 | Apple Inc. | Merged floating pixels in a touch screen |
| US11893183B2 (en) * | 2015-04-24 | 2024-02-06 | Apple Inc. | Merged floating pixels in a touch screen |
| CN107390914A (en) * | 2017-06-13 | 2017-11-24 | 深圳欧菲光科技股份有限公司 | Contact panel and display device |
| CN110914792A (en) * | 2017-11-24 | 2020-03-24 | 华为技术有限公司 | Touch display panel, flexible display device and manufacturing method thereof |
| CN108563373A (en) * | 2018-04-04 | 2018-09-21 | 华勤通讯技术有限公司 | Mutual capacitance touch sensing and touch control terminal |
| CN108563373B (en) * | 2018-04-04 | 2021-02-23 | 华勤技术股份有限公司 | Mutual capacitance touch sensor and touch terminal |
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Application publication date: 20101110 |