CN102609122B - There is two contactor control device and the method for piezoelectricity touch-control and electromagnetic touch - Google Patents
There is two contactor control device and the method for piezoelectricity touch-control and electromagnetic touch Download PDFInfo
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- CN102609122B CN102609122B CN201110024212.XA CN201110024212A CN102609122B CN 102609122 B CN102609122 B CN 102609122B CN 201110024212 A CN201110024212 A CN 201110024212A CN 102609122 B CN102609122 B CN 102609122B
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Abstract
The invention discloses a kind of two contactor control device and the touch control method with piezoelectricity touch-control and electromagnetic touch, belong to digital processing field.Described pair of contactor control device comprises: contact panel, is arranged at the electromagnetic induction plate below described contact panel, is pasted on the piezoelectricity touch-control module on contact panel surface, and the control module be electrically connected with electromagnetic induction plate and piezoelectricity touch-control module respectively.In said apparatus, if produce electromagnetic induction signal and piezoelectric signal simultaneously, then according to predefined priority, the signal of priority processing is processed, thus obtains touch information; If only produce piezoelectric signal, then described piezoelectric signal is processed, thus obtain touch information; If only produce electromagnetic induction signal, then described electromagnetic induction signal is processed, obtain touch information.Device and method of the present invention can reduce production cost, improve touch accuracy and anti-interference, and increases the service life.
Description
Technical field
The present invention relates to data processing field, particularly relate to a kind of two contactor control device and the method with piezoelectricity touch-control and electromagnetic touch.
Background technology
At present, Touch Screen is mainly divided into the types such as resistance-type, condenser type, electromagnetic type and piezoelectric type.Resistance-type screen price is very low, but have that precision is low, poor stability and easily produce the shortcomings such as cut; Capacitive screen precision is very high, but Costco Wholesale is higher, can only by pointing or have the medium operation of electric conductivity; Electromagnetic type resolution of screen is high, it is sensitive to reflect, in handwriting recognition, drawing etc., effect is fine, but adopts changes of magnetic field to differentiate position of touch due to it, and the pen with function of electromagnetic induction thus can only be used to operate; Comparatively capacitance touching control screen is low for piezoelectric type Touch Screen price, and its anti-interference is comparatively strong, really can reach ten finger multiple spots even tens touch control operations.
Chinese patent 200810189518.9 discloses a kind of position detecting device, and this device makes the test section of capacitive way overlapping with the test section of way of electromagnetic induction, can detect the information position that time writer and human body (finger) indicate.But in such scheme, because capacitive screen cost is too high, therefore adopt the position detecting device high cost of electric capacity and the two touch-control of electromagnetism, and oversize capacitance plate is difficult to realize technically; In addition, also there is the electromagnetic interference problem to capacitive screen.
Chinese patent 200310113710.7 discloses a kind of Touch Screen of display device, and this Touch Screen is integrated with the function of resistance-type and electromagnetic type screen, comprises the resistance-type screen be positioned at above display device and the electromagnetic type screen be positioned at below display device.But resistance-type screen life is low, precision is low, only appear at present on low-end electronic equipment, therefore, adopt two Touch Screens of resistance and electromagnetism at precision and Shortcomings in serviceable life.
Summary of the invention
The object of the present invention is to provide two contactor control device and the method for a kind of piezoelectricity touch-control and electromagnetic touch, with solve that two touch control manner is higher at cost, precision is low and serviceable life low in Problems existing.
For solving the problem, the technical solution adopted in the present invention is as follows:
The invention provides a kind of two contactor control devices with piezoelectricity touch-control and electromagnetic touch, this device comprises:
Contact panel;
Electromagnetic induction plate, is arranged at below described contact panel, and when time writer is near described electromagnetic induction plate, electromagnetic induction plate receives the electromagnetic induction signal of time writer generation and exports;
Piezoelectricity touch-control module, is pasted on the surface of contact panel, produces piezoelectric signal for the vibration according to contact panel surface and exports; And,
Control module, being electrically connected with electromagnetic induction plate and piezoelectricity touch-control module respectively, for processing to the received signal, and obtaining touch information.
In such scheme, described control module processes to the received signal, comprising: if control module receives electromagnetic induction signal and piezoelectric signal simultaneously, then according to predefined priority, the signal of priority processing is processed, thus obtains touch information; If control module receives only piezoelectric signal, then described piezoelectric signal is processed, thus obtain touch information; If control module receives only electromagnetic induction signal, then described electromagnetic induction signal is processed.Thus obtain touch information.
In such scheme, described touch information comprises: position of touch coordinate, touch-control pressure sensitivity information.
In such scheme, described piezoelectricity touch-control module is one or more piezoelectric sensor.
In such scheme, described piezoelectric sensor is pasted on the edge of described contact panel.
In such scheme, described piezoelectric sensor is pasted on the top surface edge of described contact panel; Or,
Described piezoelectric sensor is pasted on the lower surface edge of described contact panel, and is positioned at above electromagnetic induction plate.
In such scheme, described contact panel is liquid crystal display or electronic-paper display screen or non-display class contact panel.
Present invention also offers a kind of two touch control methods with piezoelectricity touch-control and electromagnetic touch, the method comprises:
Electromagnetic induction plate is set below contact panel, and at the surface mount piezoelectricity touch-control module of contact panel;
The touching signals produced is processed, obtains corresponding touch information.
In such scheme, the described touching signals to producing processes, and comprising: if produce electromagnetic induction signal and piezoelectric signal simultaneously, then according to predefined priority, process, thus obtain touch information to the signal of priority processing; If only produce piezoelectric signal, then described piezoelectric signal is processed, thus obtain touch information; If only produce electromagnetic induction signal, then described electromagnetic induction signal is processed, thus obtain touch information.
Two contactor control device of piezoelectricity touch-control provided by the invention and electromagnetic touch and method, combine the advantage of piezoelectricity touch-control and electromagnetic touch, achieve the combination of piezoelectricity touch-control and the two touch control operation of electromagnetic touch: the advantage that can utilize electromagnetic touch on the one hand, the precision of the touch-controls such as raising is write, drawing; On the other hand, the cost ratio capacitance formula screen of piezoelectricity touch-control module is low, effectively reduces the production cost of two contactor control device, and strong interference immunity, long service life high compared with the precision of resistance-type screen.
Accompanying drawing explanation
Fig. 1 is the structural representation with two contactor control devices of piezoelectricity touch-control and electromagnetic touch that the embodiment of the present invention one provides;
Fig. 2 is the structural representation with two contactor control devices of piezoelectricity touch-control and electromagnetic touch that the embodiment of the present invention two provides;
Fig. 3 is a kind of two tactile method flow diagram with piezoelectricity touch-control and electromagnetic touch provided by the invention.
Embodiment
The present invention is disclosed herein is a kind of two contactor control device and touch control method with piezoelectricity touch-control and electromagnetic touch.In order to thoroughly the present invention can be understood, by following description, detailed process steps or structural detail are proposed.On the other hand, well-known element is not described in details, to avoid the restriction causing the present invention unnecessary.The present invention can also implement in other examples widely, and scope of the present invention not circumscribed, be as the criterion with claim limited range.
As shown in Figure 1, first embodiment of the invention provides a kind of two touch control device structure schematic diagram with piezoelectricity touch-control and electromagnetic touch, comprising:
Contact panel 1, electromagnetic induction plate 2, piezoelectricity touch-control module 3, control module 4 and housing 5; Contact panel 1, electromagnetic induction plate 2, piezoelectricity touch-control module 3, control module 4 are fixed as an entirety by housing 5; Case top is provided with the groove consistent with contact panel shape.
Contact panel 1, is arranged at the groove of described case top.Contact panel 1 can be liquid crystal display or electronic-paper display screen, also can be non-display class contact panel.
Electromagnetic induction plate 2, is arranged at below contact panel 1.Electromagnetic induction plate 2 comprises mutual vertically disposed transmission coil groups and receiving coil group.Time writer inside has resonant circuit, when time writer is near electromagnetic induction plate, can receives the driving pulse that described transmission coil sends, and produce the electromagnetic induction signal of fixed frequency; Receiving coil on electromagnetic induction plate receives the electromagnetic induction signal of time writer generation and exports to control module 4, is processed, obtain the touch information of time writer by control module 4 to described electromagnetic induction signal.Described touch information comprises: the coordinate of position of touch, the pressure sensitivity information etc. of touch-control.
Piezoelectricity touch-control module 3, is pasted on the upper surface of contact panel 1, produces piezoelectric signal for the vibration according to contact panel surface.In the present embodiment, piezoelectricity touch-control module 3 is pasted onto contact panel 1 top surface edge.Described piezoelectricity touch-control module 3 comprises one or more piezoelectric sensor.When clicking contact panel surface, the vibration wave that contact panel surface produces is delivered to piezoelectric sensor from click location, and piezoelectric sensor, after receiving described vibration wave, deformation occurs, and produces electric signal and export to control module 4; The electric signal that control module 4 pairs of piezoelectric sensors produce processes, and obtains the touch information on contact panel.
Control module 4, is electrically connected with electromagnetic induction plate and piezoelectricity touch-control module respectively, for processing to the received signal, and obtains the information of position of touch.
In the present embodiment, control module 4 is arranged on below electromagnetic induction plate 2, and certainly, described electromagnetic induction plate 2 can be arranged on same wiring board, to save the space in housing 5 with control module 4.
Described control module processes to the received signal, comprising: if control module receives electromagnetic induction signal and piezoelectric signal simultaneously, then according to predefined priority, process, thus obtain touch information to the signal of priority processing; If control module receives only piezoelectric signal, then described piezoelectric signal is processed, thus obtain touch information; If control module receives only electromagnetic induction signal, then described electromagnetic induction signal is processed, thus obtain touch information.
As shown in Figure 2, the structural representation of what the embodiment of the present invention two provided have two contactor control devices of piezoelectricity touch-control and electromagnetic touch.The difference of the two contactor control device shown in Fig. 2 and embodiment one is, in the present embodiment, piezoelectricity touch-control module 3 is pasted on contact panel 1 lower surface, and is positioned at above electromagnetic induction plate; Preferably, piezoelectricity touch-control module 3 is pasted onto the edge of contact panel 1 lower surface.
Based on said apparatus, when clicking contact panel by time writer, the electromagnetic induction plate generation electromagnetic induction after the resonant circuit of time writer inside is excited and below contact panel, and produce electromagnetic induction signal; Meanwhile, when by time writer click contact panel time, also can cause the vibration on contact panel surface and make to be pasted onto contact panel surface piezoelectric sensor produce piezoelectric signal; Therefore click contact panel by time writer and can produce two kinds of touching signals, i.e. electromagnetic induction signal and piezoelectric signal simultaneously.But, when by other means, during as clicked contact panel by finger, due to can not with electromagnetic induction plate generation electromagnetic induction, thus can only produce piezoelectric signal by piezoelectric sensor.In addition, when electromagnetic pen near and do not click contact panel time, also can produce electromagnetic induction signal, due to now do not occur click touch-control, thus only produce a kind of electromagnetic induction signal.Based on above-mentioned analysis, two contactor control device may produce two kinds of touching signals simultaneously, also may only produce a kind of touching signals.
Based on said apparatus, the invention provides a kind of two touch control methods with piezoelectricity touch-control and electromagnetic touch, as shown in Figure 3, the method comprises:
Step 301: judge whether simultaneously to produce two kinds of touching signals; If produce two kinds of touching signals simultaneously, then perform step 302; Otherwise, perform step 303;
Step 302: according to predefined priority, processes the touching signals of priority processing, thus obtains touch information; Terminate current process.
In this step, control module receives two kinds of touching signals simultaneously, respectively: electromagnetic induction signal and piezoelectric signal, according to predefined priority, the touching signals of priority processing is amplified, rectifying and wave-filtering, the process such as sampling, and calculate by corresponding thus obtain touch information; Described touch information comprises: the coordinate of position of touch and the pressure sensitivity information etc. of touch-control.Here, owing to no matter processing which kind of touching signals, the position of touch information obtained is all identical, thus can arrange priority processing electromagnetic induction signal, also can priority processing piezoelectric signal.
Step 303: the touching signals according to producing obtains corresponding touch information.
In this step, if control module receives only piezoelectricity touching signals, then described piezoelectricity touching signals is processed accordingly, thus obtain touch information; If control module receives only electromagnetic induction signal, then respective handling is carried out to described electromagnetic induction signal, and obtain touch information.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (10)
1. have two contactor control devices for piezoelectricity touch-control and electromagnetic touch, it is characterized in that, this device comprises:
Piezoelectricity contact panel;
Electromagnetic induction plate, is arranged at below described piezoelectricity contact panel, and when time writer is near described electromagnetic induction plate, electromagnetic induction plate receives the electromagnetic induction signal of time writer generation and exports;
Piezoelectricity touch-control module, is pasted on the surface of piezoelectricity contact panel, produces piezoelectric signal for the vibration according to piezoelectricity contact panel surface and exports; And,
Control module, is arranged on same wiring board with electromagnetic induction plate, and described control module is electrically connected with electromagnetic induction plate and piezoelectricity touch-control module respectively, for processing to the received signal, and obtains touch information.
2. according to claim 1 pair of contactor control device, it is characterized in that, described control module processes to the received signal, comprise: if control module receives electromagnetic induction signal and piezoelectric signal simultaneously, then according to predefined priority, the signal of priority processing is processed, thus obtains touch information; If control module receives only piezoelectric signal, then described piezoelectric signal is processed, thus obtain touch information; If control module receives only electromagnetic induction signal, then described electromagnetic induction signal is processed, thus obtain touch information.
3. according to claim 2 pair of contactor control device, is characterized in that, described touch information comprises: position of touch coordinate, touch-control pressure sensitivity information.
4. the two contactor control devices according to Claims 2 or 3, is characterized in that, described piezoelectricity touch-control module is one or more piezoelectric sensor.
5. according to claim 4 pair of contactor control device, is characterized in that, described piezoelectric sensor is pasted on the top surface edge of described contact panel; Or,
Described piezoelectric sensor is pasted on the lower surface edge of described contact panel, and is positioned at above electromagnetic induction plate.
6. according to claim 5 pair of contactor control device, is characterized in that, described contact panel is liquid crystal display or electronic-paper display screen or non-display class contact panel.
7. have two touch control methods for piezoelectricity touch-control and electromagnetic touch, it is characterized in that, the method comprises:
Below piezoelectricity contact panel, arrange electromagnetic induction plate, when time writer is near described electromagnetic induction plate, electromagnetic induction plate receives the electromagnetic induction signal of time writer generation and exports;
And at the surface mount piezoelectricity touch-control module of piezoelectricity contact panel, described piezoelectricity touch-control module is used for producing piezoelectric signal according to the vibration on piezoelectricity contact panel surface and exporting;
The same wiring board at described electromagnetic induction plate place arranges control module, and described control module is electrically connected with electromagnetic induction plate and piezoelectricity touch-control module respectively, for processing the touching signals produced, obtains corresponding touch information.
8. according to claim 7 pair of touch control method, is characterized in that, the described touching signals to producing processes, comprise: if produce electromagnetic induction signal and piezoelectric signal simultaneously, then according to predefined priority, the signal of priority processing is processed, thus obtains touch information; If only produce piezoelectric signal, then described piezoelectric signal is processed, thus obtain touch information; If only produce electromagnetic induction signal, then described electromagnetic induction signal is processed, thus obtain touch information.
9. according to claim 8 pair of touch control method, is characterized in that, described piezoelectricity touch-control module is one or more piezoelectric sensor.
10. according to claim 9 pair of touch control method, is characterized in that, described piezoelectric sensor is pasted on the top surface edge of described contact panel; Or,
Described piezoelectric sensor is pasted on the lower surface edge of described contact panel, and is positioned at above electromagnetic induction plate.
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| CN103577084A (en) * | 2012-08-01 | 2014-02-12 | 深圳市经纬科技有限公司 | Multimode touch control input method and system |
| CN103412678B (en) * | 2013-08-12 | 2016-04-06 | 北京京东方光电科技有限公司 | A kind of display device |
| CN103558946A (en) | 2013-11-15 | 2014-02-05 | 京东方科技集团股份有限公司 | Touch-control structure, LCD panel and display device |
| CN108733258B (en) * | 2018-04-18 | 2021-08-20 | 广州视源电子科技股份有限公司 | Touch positioning system and method |
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| CN101667085A (en) * | 2008-09-04 | 2010-03-10 | 汉王科技股份有限公司 | Dual-mode input device |
| CN101770304A (en) * | 2008-12-29 | 2010-07-07 | 元太科技工业股份有限公司 | Touch control display device and manufacturing method thereof |
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| KR100480823B1 (en) * | 2002-11-14 | 2005-04-07 | 엘지.필립스 엘시디 주식회사 | touch panel for display device |
| US20100201652A1 (en) * | 2009-02-12 | 2010-08-12 | Sony Ericsson Mobile Communications Ab | Embedded piezoelectric elements in touch panels |
| CN101539815A (en) * | 2009-02-25 | 2009-09-23 | 韩鼎楠 | Multi-point touch screen operating tool |
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| CN101809527A (en) * | 2007-09-28 | 2010-08-18 | 摩托罗拉公司 | Electronic equipment with rigidity input surface of piezoelectricity sense of touch |
| CN101667085A (en) * | 2008-09-04 | 2010-03-10 | 汉王科技股份有限公司 | Dual-mode input device |
| CN101770304A (en) * | 2008-12-29 | 2010-07-07 | 元太科技工业股份有限公司 | Touch control display device and manufacturing method thereof |
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