CN201993740U - Touch-control screen with double touch-sensing device - Google Patents
Touch-control screen with double touch-sensing device Download PDFInfo
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- CN201993740U CN201993740U CN2011200323724U CN201120032372U CN201993740U CN 201993740 U CN201993740 U CN 201993740U CN 2011200323724 U CN2011200323724 U CN 2011200323724U CN 201120032372 U CN201120032372 U CN 201120032372U CN 201993740 U CN201993740 U CN 201993740U
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Abstract
The utility model relates to the technical field of a touch-control screen, in particular to a touch-control screen with a double touch-sensing device. The touch-control screen with a double touch-sensing device comprises resistance-type touch control as the first touch-sensing device; at least three pressure sensors are arranged at the bottom of the touch-control screen to sense the touch-control pressure on the surface of the touch-control screen so as to confirm the coordinate of a point of force application on the touch-control screen, so that the three pressure sensors serve as the second touch-sensing device. In the touch-control screen with the double touch-sensing device, a pressure sensing system is added in the present conventional resistance-type touch-control screen, and the touch-control screen with the double touch-sensing device is formed in combination with a single-contact touch-control screen device of the resistance-type touch-control screen. In addition, the touch-control screen with the double touch-sensing device is simple in structure, and since the traditional resistance-type touch-control screen is directly used to be improved and designed into the touch-control screen with the double touch-sensing device, the manufacturing cost is greatly reduced.
Description
Technical field:
The utility model relates to the touch screen technical field, refers in particular to a kind of touch screen with two feeldevices.
Background technology:
Touch screen is according to used medium and principle of work, can be divided into four kinds of resistance-type, capacitor induction type, infrared-type and surface acoustic wave types.Touch screen is progressively upgraded and is developed to top grade from low grade: move towards capacitor induction type and surface acoustic wave type from resistance-type, infrared-type.Touch screen commonly used at present is mainly resistance type touch control screen and capacitance type touch control screen.
Resistance type touch control screen is the induction type liquid crystal indicator that can receive input signal such as contact, when having contacted the graphic button on the screen, haptic feedback system on the screen can drive various hookup mechanisms according to the formula of programming in advance, can be in order to the push button panel of dessert machine tool formula, and produce lively visual and sound effects by liquid crystal display picture.Resistance type touch control screen comprises at present: four-wire ohm screen, five line resistances screen, seven line resistances screen.Wherein the four-wire ohm screen has two-layer transparent metal layer, and every layer all increases the 5V constant voltage during work: a vertical direction, a horizontal direction.Need four cables altogether.Five line resistances screen all is added in the voltage field of both direction on the conduction workplace of glass in basic unit by the precision resistance network, the voltage field time-sharing work that is both direction is added on the same workplace, and outer nickel gold conductive layer only only is used for being used as pure conductor, the position that the method that has timesharing behind the touch-control to detect internal layer contact point X-axis and Y-axis magnitude of voltage records touch point.Five line resistance touch screen internal layers need four lead-in wires, and skin is only made only one of conductor, and touch screen gets extension line and has 5.Seven line resistances screen is to design on the basis of five line resistances screen.But no matter be four-wire ohm touch screen, five line resistance touch screens or seven line resistance touch screens, they all are a kind of working environments of isolating fully to external world, are not afraid of dust and steam, and it can come touch-control with any object, can be used for the drawing of writing.
The deficiency of resistance type touch control screen maximum can only realize single contact exactly, and promptly touch-control, the click of a contact can only be discerned and support at every turn to resistance type touch control screen.
No matter be resistance type touch control screen or capacitance type touch control screen, the multi-point touch technology is the developing direction of touch technology, and present known multiconductor touch screen mostly is the double-contact touch screen, for example the employed touch screen of iPhone.But it is higher to have multifinger control flow cost of manufacture at present.
The utility model content:
Technical problem to be solved in the utility model is to overcome the existing existing deficiency of resistance type touch control screen, and a kind of touch screen with two feeldevices is provided.
For solving the problems of the technologies described above, the utility model has adopted following technical scheme: the utility model comprises the electric resistance touch-control as first feeldevice, at least be provided with three pressure transducers in the bottom of this touch screen, utilize the next touch-control pressure of pressure sensor senses to the touch screen surface, determine the coordinate of the point of application on touch screen, with it as second feeldevice.
In the technique scheme, described touch screen bottom is provided with four pressure transducers, and these four pressure transducers lay respectively at four jiaos of touch screen.
In the technique scheme, four rectangular arrangements of pressure transducer that described touch screen bottom is provided with.
The utility model is to increase a pressure sensing system in conventional at present resistance type touch control screen, and the single contact touch screen device in conjunction with resistance type touch control screen itself has has just formed the touch screen with two feeldevices.Pressure sensing system described in the utility model particularly is provided with a plurality of pressure transducers exactly below resistance type touch control screen, regard whole resistance type touch control screen as an arm of force, when the user touches touch screen, the touch pressure of its generation affacts touch-screen, this pressure will be received by pressure transducer, the touch point is positioned at the different position of touch screen, the pressure size of each pressure sensor senses is also different, so just can determine the coordinate of the point of application on touch screen according to the pressure of each pressure sensor senses.
The utility model adopts and to make after the technique scheme the electric resistance touch-control device that resistance type touch control screen has except itself, also forms second pressure contactor control device by pressure transducer.Can make touch screen of the present utility model have the double-contact recognition function like this.During use, second feeldevice that can utilize pressure transducer to form the contact that at first acts on the touch screen carries out sensing, calculates its coordinate on touch screen.And with after act on the feeldevice that the contact on the touch screen utilizes resistance type touch control screen itself to have and carry out sensing, calculate its coordinate on touch screen.Same like this touch screen just can be discerned double-contact simultaneously, strengthens the range of application of touch screen greatly.
In addition, the utility model is simple in structure, and it directly utilizes traditional resistance type touch control screen to improve design, and manufacturing cost reduces greatly.
Description of drawings:
Fig. 1 is the structural representation of the utility model embodiment one;
Fig. 2 is a single contact force diagram among the utility model embodiment one;
Fig. 3 is the stressed synoptic diagram of double-contact among the utility model embodiment one;
Fig. 4 is the synoptic diagram of the utility model embodiment two.
Embodiment:
Below in conjunction with specific embodiments and the drawings the utility model is further specified.
See Fig. 1,2, the present embodiment main body is a resistance type touch control screen 1, is provided with four pressure transducers 2 in the bottom of this resistance type touch control screen 1, utilizes the next pressure to the touch screen surface of pressure transducer 2 impressions, determines the coordinate of the point of application on resistance type touch control screen 1.Certainly, the utility model screen touch-control system that can also directly utilize resistance type touch control screen 1 to have itself is determined the coordinate of contact.
In the present embodiment, described four pressure transducers 2 lay respectively at four jiaos of resistance type touch control screen 1, and rectangular arrangement.Adopt this rectangular arranged to be convenient to calculate the coordinate of contact.
In the utility model, utilize pressure transducer 2 to determine that the principle of contact coordinate is: as shown in Figure 1, touch screen 1 is after receiving outside touch-control power F, and four sensors 2 will record four anchorage force N1, N2, N3, N4 respectively.According to newton's theorem, touch-control pressure F should four anchorage force N1, N2, N3, N4 identical with joint efforts.Simultaneously, see Fig. 2, set up plane coordinate system, set the rectangle length and width that four fulcrums constitute and be respectively a, b with four pressure inductors 2 of touch screen 1, the coordinate of touch-control pressure F be F (x, y), according to arm of force equilibrium principle:
In coordinate system, the moment of X-direction is closed and should be equaled 0, i.e. ∑ Mx (F)=0;
In coordinate system, the moment of Y direction is closed and should be equaled 0, i.e. ∑ My (F)=0;
We can obtain following equation:
By ∑ Mx (F)=0, obtain equation (1): N1b+N2b-Fy=0
By ∑ My (F)=0, obtain equation (2): N2b+N3b-Fx=0
N1, N2, N3 and F all can measure the described numerical value that can obtain down x, y by pressure inductor in above-mentioned equation (1), (2).
So just known the coordinate position of pressure F at touch screen upward pressure point.
According to principle of moment balance, we also can draw other equations, obtain coordinate F (x, y).
Determine the coordinate of contact as for the electric resistance touch-control system that itself has by touch screen 1, the utility model just repeats no more.
By top as can be seen described, make in the utility model the electric resistance touch-control device that resistance type touch control screen 1 has except itself, also form second pressure contactor control device by pressure transducer 2.Can make touch screen 1 of the present utility model have the double-contact recognition function like this.In conjunction with Fig. 3, the user will form two contacts on touch screen 1, its corresponding touch-control pressure is respectively F1, F2, wherein F1 at first forms, F2 forms after a while, and its principle of work is: will at first act on the pressure F1 of the contact on the touch screen 1, second feeldevice that forms by pressure transducer 2 carries out sensing, calculate its coordinate on touch screen of F1, this moment, the electric resistance touch-control system of touch screen 1 did not participate in work.After F2 acted on the touch screen 1, pressure transducer 2 was not worked, and the electric resistance touch-control system works of touch screen 1, the feeldevice that utilizes resistance type touch control screen itself to have carries out sensing, calculates the coordinate of F2 on touch screen 1.Same like this touch screen just can be discerned double-contact simultaneously, strengthens the range of application of touch screen greatly.
The quantity of the pressure inductor 2 in the utility model should be at least three, and is stable to support touch screen 1, can certainly be five, six etc. most.See Fig. 4, this is embodiment two of the present utility model, can adopt six pressure inductors 2 in the present embodiment.
The above only is the utility model example, be not to limit the utility model practical range, all equivalences of doing according to the described structure of the utility model claim, feature and principle change or modify, and all should be included in the utility model claim.
Claims (3)
1. touch screen with two feeldevices, comprise: as the resistance type touch control screen (1) of first feeldevice, it is characterized in that: be provided with three pressure transducers (2) at least in the bottom of this touch screen (1), utilize pressure transducer (2) sensing to come to the touch-control pressure on touch screen (1) surface, determine the coordinate of the point of application on touch screen (1), with it as second feeldevice.
2. a kind of touch screen with two feeldevices according to claim 1 is characterized in that: described touch screen (1) bottom is provided with four pressure transducers (2), and these four pressure transducers (2) lay respectively at four jiaos of touch screen (1).
3. a kind of touch screen with two feeldevices according to claim 2 is characterized in that: the rectangular arrangement of four pressure transducers (2) that described touch screen (1) bottom is provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200323724U CN201993740U (en) | 2011-01-30 | 2011-01-30 | Touch-control screen with double touch-sensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200323724U CN201993740U (en) | 2011-01-30 | 2011-01-30 | Touch-control screen with double touch-sensing device |
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| Publication Number | Publication Date |
|---|---|
| CN201993740U true CN201993740U (en) | 2011-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200323724U Expired - Fee Related CN201993740U (en) | 2011-01-30 | 2011-01-30 | Touch-control screen with double touch-sensing device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105022544A (en) * | 2015-07-28 | 2015-11-04 | Tcl移动通信科技（宁波）有限公司 | Capacitive touch screen, mobile terminal and control method |
| CN106257375A (en) * | 2015-06-17 | 2016-12-28 | 和硕联合科技股份有限公司 | FORCE SENSING ELECTRONIC device |
| CN113760127A (en) * | 2021-08-25 | 2021-12-07 | 西安闻泰信息技术有限公司 | Touch pad, touch feedback method and terminal equipment |
-
2011
- 2011-01-30 CN CN2011200323724U patent/CN201993740U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106257375A (en) * | 2015-06-17 | 2016-12-28 | 和硕联合科技股份有限公司 | FORCE SENSING ELECTRONIC device |
| CN106257375B (en) * | 2015-06-17 | 2019-05-17 | 和硕联合科技股份有限公司 | Force sensing electronic device |
| CN105022544A (en) * | 2015-07-28 | 2015-11-04 | Tcl移动通信科技（宁波）有限公司 | Capacitive touch screen, mobile terminal and control method |
| CN113760127A (en) * | 2021-08-25 | 2021-12-07 | 西安闻泰信息技术有限公司 | Touch pad, touch feedback method and terminal equipment |
| CN113760127B (en) * | 2021-08-25 | 2024-04-09 | 西安闻泰信息技术有限公司 | Touch pad, touch feedback method and terminal equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20110928 Termination date: 20170130 |
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| CF01 | Termination of patent right due to non-payment of annual fee |