CN102129316A - Multipoint touch screen - Google Patents
Multipoint touch screen Download PDFInfo
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- CN102129316A CN102129316A CN2011100408549A CN201110040854A CN102129316A CN 102129316 A CN102129316 A CN 102129316A CN 2011100408549 A CN2011100408549 A CN 2011100408549A CN 201110040854 A CN201110040854 A CN 201110040854A CN 102129316 A CN102129316 A CN 102129316A
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Abstract
The invention discloses a multipoint touch screen, which relates to multipoint type touch screen; a touch panel of the multipoint touch screen comprises a first input layer, a second input layer, a third input layer and a fourth input layer, wherein the third input layer comprises a plurality of third input layer row electrode wires which are threaded between the first input layer row electrode wires; the fourth input layer comprises a plurality of fourth input layer column electrode wires which are threaded between the second input layer column electrode wires; and leads of the third input layer row electrode wires and the fourth input layer column electrode wires are all provided with isolating resistors; the multipoint touch screen has the advantages that: in the structure of the invention, the leads of the first input layer row electrode wires, the leads of the second input layer column electrode wires, the leads of the third input layer row electrode wires and the leads of the fourth input layer column electrode wires are all provided with the isolating resistors, hence, the multipoint touch screen of the invention can achieve multipoint touch accurately and inerrably without time difference.
Description
Technical field
The present invention relates to touch-screen, relate in particular to the multipoint mode touch-screen.
Background technology
Touch-screen has been widely used on the electronic equipments such as computing machine, mobile phone realizing operation to main frame making man-machine exchange more simple and direct by icon on the finger touch display screen and literal.
From the developing history of touch-screen, but touch-screen has developed into the multi-point touch panel of multiple point touching from single-point touches, and the characteristics of multi-point touch panel maximum are the operations that can a plurality of fingers realizes simultaneously screen, makes the convenient and hommization of touch-screen.
The multi-point touch panel of present stage mainly is the condenser type multi-point touch panel, and the IC manufacturing technology difficulty of condenser type multi-point touch panel is big, touch screen panel board machining process complexity and production cost height.Existing resistance four-wire system touch-screen, its production cost is low and be easy to processing, but can only carry out single-point touch.
In view of the continuous development and the application prospects of touch-screen, people need a kind of production cost multi-point touch panel low, that be easy to process to satisfy widely with touch-screen to carry out demand that main frame is controlled.
Summary of the invention
The present invention is directed to the deficiency of above-mentioned technical matters, aim to provide a kind of multi-point touch panel,, make the low and convenient and practical multipoint mode electric resistance touch screen of a kind of production cost by electric resistance touch screen is improved.
The present invention is achieved through the following technical solutions: a kind of multi-point touch panel comprises display unit, is positioned at touch panel, the touch panel master cpu that is connected with the touch panel signal on the described display unit and is attached to the scratch resistant plastic layer on touch panel surface; Described touch panel comprises first input layer, second input layer, the 3rd input layer and the 4th input layer; Described first input layer comprises some first input layer row electrode lines, interconnects between the described first input layer row electrode lines; Described second input layer comprises some second input stratose electrode wires, interconnects between the described second input stratose electrode wires; The first input layer row electrode lines and the stacked formation matrix that is provided with of the second input stratose electrode wires; The first input layer row electrode lines of described first input layer is provided with a lead-in wire jointly, and the second input stratose electrode wires of described second input layer is provided with a lead-in wire jointly; Described the 3rd input layer comprises some the 3rd input layer row electrode lines, and described the 3rd input layer row electrode lines is interspersed between the described first input layer row electrode lines; Described the 4th input layer comprises some the 4th input stratose electrode wires, and described the 4th input stratose electrode wires is interspersed between the described second input stratose electrode wires; Described the 3rd input layer row electrode lines and described the 4th input stratose electrode wires all are provided with lead-in wire; All be provided with isolation resistance on the lead-in wire of described the 3rd input layer row electrode lines and described the 4th input stratose electrode wires; The lead-in wire of the lead-in wire of the lead-in wire of the described first input layer row electrode lines, the described second input stratose electrode wires, the lead-in wire of described the 3rd input layer row electrode lines and described the 4th input stratose electrode wires all is connected with described touch panel master cpu signal.
Below above technical scheme is further elaborated:
The lead-in wire of the lead-in wire of the described first input layer row electrode lines and the described second input stratose electrode wires is provided with isolation resistance.
Beneficial effect of the present invention is: one, multi-point touch panel of the present invention, form the rectangle square formation by the first input layer row electrode lines of first input layer and stacked setting of the second input stratose electrode wires of second input layer, wherein, the second input stratose electrode wires of the first input layer row electrode lines of first input layer and second input layer is divided into some big zones with touch panel, can roughly judge the position at place, touch point when touching on touch panel by first input layer and second input layer; In addition, the present invention also is provided with the 3rd input layer and the 4th input layer, and the 3rd input layer has the 3rd input layer row electrode lines that is interspersed in the first input layer row electrode lines, and the 4th input layer has the 4th input stratose electrode wires that is interspersed in the second input stratose electrode wires; Like this, after judging the approximate location at place, touch point by first input layer and second input layer, can judge the exact position of touch more accurately by the 3rd input layer row electrode lines and the 4th input stratose electrode wires, compare with electric resistance touch screen in the market, can determine more touch point by electrode wires still less, make that the degree of accuracy of touch-screen is higher; Two, on the lead-in wire of the lead-in wire of the lead-in wire of the lead-in wire of the first input layer row electrode lines, the second input stratose electrode wires, the 3rd input layer row electrode lines and the 4th input stratose electrode wires, all be provided with isolation resistance in the structure of the present invention, difference can make the present invention carry out multiple point touching accurately like this, when not required; Three, the present invention is simple in structure, and production cost is low, and circuitry needed is simple, and stability is strong.
Description of drawings
Fig. 1 is a structural principle synoptic diagram of the present invention.
Embodiment
The present invention will be further described below in conjunction with drawings and Examples:
Embodiment 1
With reference to shown in Figure 1, a kind of multi-point touch panel that the present invention discloses comprises display unit, be positioned at touch panel, the touch panel master cpu that is connected with the touch panel signal on the display unit and be attached to the scratch resistant plastic layer on touch panel surface; Touch panel comprises first input layer, second input layer, the 3rd input layer and the 4th input layer; The first input layer RA1, RA2, RA3 comprise four first input layer row electrode lines separately, interconnect between the first input layer row electrode lines; The second input layer CA1, CA2, CA3 comprise four second input stratose electrode wires separately, interconnect between the second input stratose electrode wires; The first input layer row electrode lines and the stacked formation matrix that is provided with of the second input stratose electrode wires; The 3rd input layer comprises 12 the 3rd input layer row electrode lines RP1, RP2, RP3, RP4, RP1 ', RP2 ', RP3 ', RP4 ', RP1 ", RP2 ", RP3 ", RP4 ", and the 3rd input layer row electrode lines RP1, RP2, RP3, RP4, RP1 ', RP2 ', RP3 ', RP4 ', RP1 ", RP2 ", RP3 ", RP4 " are interspersed between the first input layer row electrode lines; The 4th input layer comprises 12 the 4th input stratose electrode wires CP1, CP2, CP3, CP4, CP1 ', CP2 ', CP3 ', CP4 ', CP1 ", CP2 ", CP3 ", CP4 ", and the 4th input stratose electrode wires CP1, CP2, CP3, CP4, CP1 ', CP2 ', CP3 ', CP4 ', CP1 ", CP2 ", CP3 ", CP4 " are interspersed between the second input stratose electrode wires; The 3rd input layer row electrode lines RP1, RP2, RP3, RP4, RP1 ', RP2 ', RP3 ', RP4 ', RP1 ", RP2 ", RP3 ", RP4 " and the 4th input stratose electrode wires CP1, CP2, CP3, CP4, CP1 ', CP2 ', CP3 ', CP4 ', CP1 ", CP2 ", CP3 ", CP4 " are provided with lead-in wire; All be provided with isolation resistance on the lead-in wire of the lead-in wire of the lead-in wire of the first input layer row electrode lines, the second input stratose electrode wires, the 3rd input layer row electrode lines RP1, RP2, RP3, RP4, RP1 ', RP2 ', RP3 ', RP4 ', RP1 ", RP2 ", RP3 ", RP4 " and the 4th input stratose electrode wires CP1, CP2, CP3, CP4, CP1 ', CP2 ', CP3 ', CP4 ', CP1 ", CP2 ", CP3 ", CP4 "; The lead-in wire of the lead-in wire of the lead-in wire of the lead-in wire of the first input layer row electrode lines, the second input stratose electrode wires, the 3rd input layer row electrode lines RP1, RP2, RP3, RP4, RP1 ', RP2 ', RP3 ', RP4 ', RP1 ", RP2 ", RP3 ", RP4 " and the 4th input stratose electrode wires CP1, CP2, CP3, CP4, CP1 ', CP2 ', CP3 ', CP4 ', CP1 ", CP2 ", CP3 ", CP4 " all is connected with touch panel master cpu signal.
When concrete the application, by the first input layer RA1, RA2, the first input layer row electrode lines of RA3 and the second input layer CA1, CA2, the stacked setting of the second input stratose electrode wires of CA3 formed the rectangle square formation, wherein, the first input layer RA1, RA2, the first input layer row electrode lines of RA3 and the second input layer CA1, CA2, the second input stratose electrode wires of CA3 is divided into several big zones with touch panel, can pass through the first input layer RA1 when on touch panel, touching, RA2, the RA3 and the second input layer CA1, CA2, CA3 roughly judges the position at place, touch point, in addition, the 3rd input layer has the 3rd input layer row electrode lines RP1 that is interspersed in the first input layer row electrode lines, RP2, RP3, RP4, RP1 ', RP2 ', RP3 ', RP4 ', RP1 "; RP2 ", RP3 "; RP4 ", the 4th input layer has the 4th input stratose electrode wires CP1 that is interspersed in the second input stratose electrode wires, CP2, CP3, CP4, CP1 ', CP2 ', CP3 ', CP4 ', CP1 "; CP2 ", CP3 "; CP4 ", like this, when passing through the first input layer RA1, RA2, the RA3 and the second input layer CA1, CA2, after CA3 judges the approximate location at place, touch point, again by the 3rd input layer row electrode lines RP1, RP2, RP3, RP4, RP1 ', RP2 ', RP3 ', RP4 ', RP1 "; RP2 ", RP3 "; RP4 " and the 4th input stratose electrode wires RP1, RP2, RP3, RP4, RP1 ', RP2 ', RP3 ', RP4 ', RP1 "; RP2 ", RP3 "; RP4 " can judge the exact position of touch accurately.
In addition, on the lead-in wire of the lead-in wire of the lead-in wire of the lead-in wire of the first input layer row electrode lines, the second input stratose electrode wires, the 3rd input layer row electrode lines RP1, RP2, RP3, RP4, RP1 ', RP2 ', RP3 ', RP4 ', RP1 ", RP2 ", RP3 ", RP4 " and the 4th input stratose electrode wires CP1, CP2, CP3, CP4, CP1 ', CP2 ', CP3 ', CP4 ', CP1 ", CP2 ", CP3 ", CP4 ", all be provided with isolation resistance in the structure of the present invention, difference can make the present invention carry out multiple point touching accurately like this, when not required.As the circled positions that touches among Fig. 1, if the level of RA3 is 0 level, the level of other lead-in wire is 1 level, the level of CP1 is 0 level, owing to added isolation resistance now, so CP1 ', CP1 " level be not 0 level; because the level of CP1 is 0 level; because when touching, CP1 and CA1 contact short circuit are so the level of CA1 is 0 level; At this moment read RA3, RA2, RA1, CA3 when CA2, the level value of CA1, has only RA3=0, CA1=0, other the level of reading are 1 level, thus detect this moment the touch point coordinate be exactly (RA3, CP1); In like manner, when the level of RA2 is made as 0 level, read RA3, RA2, RA1, CA3, when CA2, the level value of CA1, has only RA2=0, CP1 '=0, during owing to touch, CP1 ' and CA2 contact short circuit, so CA2=0 level, other the level of reading all is 1 level, thus this moment detect the touch point coordinate be exactly (RA2, CA2=0); In like manner, scan successively, can detect other contact point on the touch-screen respectively in top mode.
Embodiment 2
In the embodiments of the invention 2, the 3rd input stratose electrode wires RP1, RP1 ', RP1 " lead-in wire be connected on the output line back and be connected with the touch panel master cpu; the 3rd imports stratose electrode wires RP2; RP2 '; RP2 " lead-in wire be connected and afterwards on the output line be connected with the touch panel master cpu, the 3rd input stratose electrode wires RP3, RP3 ', the lead-in wire of RP3 " lead-in wire be connected on the output line back and be connected with the touch panel master cpu, the 3rd imports stratose electrode wires RP4; RP4 '; RP4 " is connected and afterwards on the output line is connected with the touch panel master cpu; Equally, after being connected on the output line, the lead-in wire of the 4th input stratose electrode wires CP1, CP1 ', CP1 ' ' is connected with the touch panel master cpu, the 4th input stratose electrode wires CP2, CP2 ', CP2 " lead-in wire be connected that the back is connected with the touch panel master cpu on the output line; be connected with the touch panel master cpu after the lead-in wire of the 4th input stratose electrode wires CP3, CP3 ', CP3 " lead-in wire be connected that the back is connected with the touch panel master cpu on the output line, the 4th imports stratose electrode wires CP4, CP4 ', CP4 " is connected on the output line; Other structure is identical with embodiment 1.
The announcement of book and instruction according to the above description, those skilled in the art in the invention can also carry out suitable change and modification to above-mentioned embodiment.Therefore, the embodiment that discloses and describe above the present invention is not limited to also should fall in the protection domain of claim of the present invention modifications and changes more of the present invention.In addition, although used some specific terms in this instructions, these terms do not constitute any restriction to the present invention just for convenience of description.
Claims (2)
1. multi-point touch panel is characterized in that: comprise display unit, be positioned at touch panel, the touch panel master cpu that is connected with the touch panel signal on the described display unit and be attached to the scratch resistant plastic layer on touch panel surface;
Described touch panel comprises first input layer, second input layer, the 3rd input layer and the 4th input layer;
Described first input layer comprises some first input layer row electrode lines, interconnects between the described first input layer row electrode lines;
Described second input layer comprises some second input stratose electrode wires, interconnects between the described second input stratose electrode wires;
The first input layer row electrode lines and the stacked formation matrix that is provided with of the second input stratose electrode wires;
The first input layer row electrode lines of described first input layer is provided with a lead-in wire jointly, and the second input stratose electrode wires of described second input layer is provided with a lead-in wire jointly;
Described the 3rd input layer comprises some the 3rd input layer row electrode lines, and described the 3rd input layer row electrode lines is interspersed between the described first input layer row electrode lines;
Described the 4th input layer comprises some the 4th input stratose electrode wires, and described the 4th input stratose electrode wires is interspersed between the described second input stratose electrode wires;
Described the 3rd input layer row electrode lines and described the 4th input stratose electrode wires all are provided with lead-in wire;
All be provided with isolation resistance on the lead-in wire of described the 3rd input layer row electrode lines and described the 4th input stratose electrode wires;
The lead-in wire of the lead-in wire of the lead-in wire of the described first input layer row electrode lines, the described second input stratose electrode wires, the lead-in wire of described the 3rd input layer row electrode lines and described the 4th input stratose electrode wires all is connected with described touch panel master cpu signal.
2. multi-point touch panel according to claim 1 is characterized in that: the lead-in wire of the lead-in wire of the described first input layer row electrode lines and the described second input stratose electrode wires is provided with isolation resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100408549A CN102129316A (en) | 2011-02-18 | 2011-02-18 | Multipoint touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100408549A CN102129316A (en) | 2011-02-18 | 2011-02-18 | Multipoint touch screen |
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| CN102129316A true CN102129316A (en) | 2011-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011100408549A Pending CN102129316A (en) | 2011-02-18 | 2011-02-18 | Multipoint touch screen |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62125946U (en) * | 1986-01-28 | 1987-08-10 | ||
| JPH05250085A (en) * | 1992-03-04 | 1993-09-28 | Mitsubishi Electric Corp | Coordinate input device |
| CN101034331A (en) * | 2006-02-13 | 2007-09-12 | 陈其良 | Touch screen |
| US20100060602A1 (en) * | 2008-09-05 | 2010-03-11 | Mitsubishi Electric Corporation | Touch screen, touch panel and display device |
| CN101907941A (en) * | 2009-06-03 | 2010-12-08 | 万达光电科技股份有限公司 | Matrix type parallel electrode array touch panel and touch detection method thereof |
-
2011
- 2011-02-18 CN CN2011100408549A patent/CN102129316A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62125946U (en) * | 1986-01-28 | 1987-08-10 | ||
| JPH05250085A (en) * | 1992-03-04 | 1993-09-28 | Mitsubishi Electric Corp | Coordinate input device |
| CN101034331A (en) * | 2006-02-13 | 2007-09-12 | 陈其良 | Touch screen |
| US20100060602A1 (en) * | 2008-09-05 | 2010-03-11 | Mitsubishi Electric Corporation | Touch screen, touch panel and display device |
| CN101907941A (en) * | 2009-06-03 | 2010-12-08 | 万达光电科技股份有限公司 | Matrix type parallel electrode array touch panel and touch detection method thereof |
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Application publication date: 20110720 |