CN201965584U - Touch device and electronic equipment with touch device - Google Patents
Touch device and electronic equipment with touch device Download PDFInfo
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- CN201965584U CN201965584U CN2011200712027U CN201120071202U CN201965584U CN 201965584 U CN201965584 U CN 201965584U CN 2011200712027 U CN2011200712027 U CN 2011200712027U CN 201120071202 U CN201120071202 U CN 201120071202U CN 201965584 U CN201965584 U CN 201965584U
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- panel
- control device
- contactor control
- receiving antenna
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Abstract
The utility model provides a touch device and electronic equipment with the touch device, belonging to the technical field of touch control. The touch device comprises a panel, a sending antenna, at least three resonance circuits and a control processing unit, wherein the sending antenna is arranged on the panel and sends out a detection wave used for detecting whether the panel is touched or not; the resonance circuits are arranged on the panel and are used for inducing the detection wave and generating a resonance wave; and the control processing unit controls and processes the resonance wave and position information of the resonance circuits to acquire corresponding touch information which at least contains touch strength and touch position. In the touch device, with the adoption of the resonance circuits, touch control of an ordinary object to the panel is realized, the technology is simple, the cost is more preponderant, and the touch device can be widely applied to the technical field of touch control.
Description
Technical field
The utility model belongs to the touch technology field, is specifically related to the electronic equipment that the general object of a kind of usefulness carries out the contactor control device of touch-control and has this contactor control device.
Background technology
The electromagnetism touch technology is because characteristics such as hi-Fix, highly sensitive pressure sensitive are that first of early stage flat panel products selected.But owing to must operate by the professional time writer of configuration, the man-machine interaction aspect is restricted, and causes dominant position to be replaced by at present popular multiple spot capacitance touching control.
Along with the widespread use of touch technology, people feel all the more and the convenience, particularly smart mobile phone of finger touch and multi-point touch and the release of panel computer promote the exploration of people to new technology especially.
What multi-point touch technology application at present was maximum is the multiple spot capacitive touch screen, yet, also there are many problems in the multiple spot capacitive touch screen: first, must be seated in screen front, directly influence the screen display effect, particularly more serious to the reflection type screen influence, such as class paper display screens such as electric ink screens, be difficult to adopt this touch technology.The second, touch control object must have electric conductivity and bigger contact area will be arranged, and touch-control could be effectively; Though use that can be ready-made finger will can not carry out touch control operation with finger as touch control object because of no longer having electric conductivity after putting on one's gloves, and is very inconvenient; And the foreign matter be infected with and the influence of sweat stain are pointed in the precision of touch-control and sensitivity easily.Because there are these problems, the mutual convenience of multiple spot capacitive touch screen will be had a greatly reduced quality.On the contrary with the placement location of multiple spot capacitive touch screen, the electromagnetism touch screen places the screen back side usually, and the advantage that just possesses capacitive touch screen and do not had can be advantageously applied to reflection type screens such as electric ink screen.
As seen, in the prior art, multiple spot capacitance touching control technology and electromagnetism touch technology respectively have shortcoming, and the multiple spot capacitive touch screen can only carry out touch-control with finger, and the electromagnetism touch screen can only carry out touch-control with time writer, all can not realize carrying out touch-control with any object.
The utility model content
In order to realize touch screen, contactor control device of the present utility model and the electronic equipment with this contactor control device have been proposed by the problem of any object touch-control.
In first aspect of the present utility model, a kind of contactor control device is provided, it comprises: panel; Transmitting antenna, whether touched it is arranged on the panel, outwards send to be used to survey panel probing wave; At least three resonant circuits, it is arranged on the panel, and the induction probing wave produces resonance wave; And controlled processing unit, the positional information of its control and treatment resonance wave and resonant circuit obtains comprising at least accordingly the information that presses that presses intensity, presses the position.
In second aspect of the present utility model, a kind of contactor control device is provided, comprising: panel; Transmitting antenna, whether touched it is arranged on the panel, outwards send to be used to survey panel probing wave; Time writer is responded to probing wave and is produced resonance when pressing panel, send first resonance wave; At least one the first receiving antennas, it is arranged on the panel, receives first resonance wave; At least one resonant circuit, it is arranged on the panel, and the induction probing wave produces second resonance wave when second object that is different from time writer presses; And controlled processing unit, the positional information of its control and treatment first resonance wave and first receiving antenna, perhaps the positional information of control and treatment second resonance wave and resonant circuit is pressed information respectively accordingly.
Electronic equipment of the present utility model has above-mentioned contactor control device.
At contactor control device of the present utility model and having in the electronic equipment of this contactor control device, by adopting above-mentioned resonant circuit, realized the touch-control of general object counter plate, solved the defective that touch screen in the prior art can not carry out touch-control with general object.
And compared with prior art, contactor control device of the present utility model and control method thereof are simple with the electronic equipment technology with this contactor control device, and cost advantage is more arranged.
Description of drawings
Fig. 1 is the synoptic diagram of the contactor control device of an embodiment of the present utility model.
Fig. 2 is the synoptic diagram of controlled processing unit of the contactor control device of an embodiment of the present utility model.
Fig. 3 is the synoptic diagram of the contactor control device of another embodiment of the present utility model.
Fig. 4 is the synoptic diagram of controlled processing unit of the contactor control device of another embodiment of the present utility model.
Fig. 5 is the process flow diagram of an embodiment of the control method of contactor control device of the present utility model.
Fig. 6 is the process flow diagram of another embodiment of the control method of contactor control device of the present utility model.
Embodiment
Below, be described with reference to the accompanying drawings embodiment of the present utility model.By the embodiment that is described with reference to the drawings is exemplary, only is used to explain the utility model, and can not be interpreted as restriction of the present utility model.
In an embodiment of the present utility model, as shown in Figure 1, contactor control device comprises: panel 1; Transmitting antenna 2; Resonant circuit is made of with the signal patch 5 that is connected with receiving antenna 4 ' receiving antenna 4 '; And controlled processing unit 6.
Wherein, transmitting antenna 2, receiving antenna 4 ' and signal patch 5 all are arranged on the panel 1, specifically can place panel 1 back side or edge, or embed panel 1 inside.
Transmitting antenna 2 is at least one, and whether touched each bar all can outwards send and be used to survey panel 1 probing wave, and probing wave can be that fundamental frequency is the square-wave signal of f ', or frequency is the sine wave signal of f1 '.Probing wave also can be other appropriate signal.
Resonant circuit is at least three, and in each resonant circuit, the signal patch 5 that is connected with receiving antenna 4 ' is at least a slice.Signal patch 5 tablet for having the pressure-sensitive capacitance characteristic has different capacitances according to the difference of pressure.Signal patch 5 can also have acoustic-electric or electroacoustic property, improves bearing accuracy and touch-control experience with this.The fundamental frequency that sends of induction transmitting antenna 2 is the square wave (perhaps responding to the frequency that transmitting antenna 2 sends is the sine wave of f1 ') of f ' when resonant circuit is touched, and the generation frequency is the resonance wave of f ' (or f1 ').
By the quantity and the position of transmitting antenna 2, receiving antenna 4 ' and signal patch 5 rationally are set, can make full use of general object and press the physical change that is produced, realize finger or general object touch-control, and do not influence display effect fully.
Controlled processing unit 6, the positional information of its control and treatment resonance wave and resonant circuit is comprised the information that presses that presses intensity, presses the position respectively accordingly.
Specifically, the signal intensity of receiving antenna 4 ' at least three resonant circuits of changes in amplitude maximum before and after controlled processing unit 6 is chosen and pressed, and the positional information of utilizing this signal intensity and receiving antenna 4 ' to carry out quafric curve as the initial parameter of quafric curve approximate, obtain comprising at least accordingly the information that presses that presses intensity, presses the position respectively.Particularly, with the positional information of receiving antenna 4 ' x axle,, draw quafric curve with the strength information of receiving antenna y axle as quafric curve as quafric curve; Obtain to press the position by calculating the vertex of a conic or end point, obtain to press intensity by calculating the quafric curve amplitude again.Here, quafric curve can be para-curve or sub-thread hyperbolic curve, perhaps other suitable quafric curves.
As shown in Figure 2, controlled processing unit 6 comprises bandpass filter 62 '.The passband of bandpass filter 62 ' just makes resonance wave pass through.
Controlled processing unit 6 also comprises multiselect one analog switch 63.Receiving antenna 4 ' in the resonant circuit directly or the input end by multiselect one analog switch 63 connecting band bandpass filters 62 '.By multiselect one analog switch 63, a certain concrete receiving antenna 4 ' of gating.
Controlled processing unit also comprises integrating circuit 66 ', analog to digital conversion circuit (A/D circuit) 68 ', and main control circuit 64, transtation mission circuit 69, and one select multimode to intend switch 70.
The output terminal of bandpass filter 62 ' connects the input end of integrating circuit 66 ', and the output terminal of integrating circuit 66 ' connects the input end of analog to digital conversion circuit 68 '.
By multiselect one analog switch 63, the a certain receiving antenna 4 ' that gating is concrete, thereby, main control circuit 64 can be handled the signal of analog to digital conversion circuit 68 ' output and the positional information that signal amplitude changes at least three maximum receiving antennas 4 ', is comprised the information that presses that presses intensity and press the position at least.
In another embodiment of the present utility model, as shown in Figure 3, contactor control device comprises: panel 1; Transmitting antenna 2; Time writer 7; First receiving antenna 3; Resonant circuit is made of with the signal patch 5 that is connected with second receiving antenna 4 second receiving antenna 4; And controlled processing unit 6.
Wherein, transmitting antenna 2, the first receiving antennas, 3, the second receiving antennas 4 and signal patch 5 all are arranged on the panel 1, specifically can place panel 1 back side or edge, or embed panel 1 inside.
Transmitting antenna 2 is at least one, and whether touched each bar all can outwards send and be used to survey panel 1 probing wave, and probing wave can be that fundamental frequency is the square-wave signal of f, or frequency is the sine wave signal of f1.Probing wave also can be other appropriate signal.
The induction fundamental frequency was that the square wave medium frequency of f is the harmonic wave (or frequency is the sine wave signal of f3) of 3f and produces resonance that sending frequency is 3f(or f3 when time writer pressed panel 1) first resonance wave.
First receiving antenna 3 is at least three, and it is 3f(or f3 that each bar all can receive said frequencies) first resonance wave.
Transmitting antenna 2 can dual-purpose be described first receiving antenna 3, and timesharing sends probing wave and receives first resonance wave.Like this, can reduce the quantity of antenna.
Resonant circuit is at least three, and in each resonant circuit, the signal patch 5 that is connected with second receiving antenna 4 is at least a slice.Signal patch 5 tablet for having the pressure-sensitive capacitance characteristic has different capacitances according to the difference of pressure.Signal patch 5 can also have acoustic-electric or electroacoustic property, improves bearing accuracy and touch-control experience with this.The fundamental frequency that induction transmitting antenna 2 sent when second object that is different from time writer when resonant circuit pressed is the square wave (perhaps responding to the frequency that transmitting antenna 2 sends is the sine wave of f1) of f, and producing frequency is f(or f1) second resonance wave.
By the quantity and the position of transmitting antenna 2, first receiving antenna 3, second receiving antenna 4 and signal patch 5 rationally are set, can make full use of general object and press the physical change that is produced, in conjunction with the electromagnetic location technology, realize that finger or general object are controlled, time writer is accurately write, and do not influenced display effect fully.
Controlled processing unit 6, the positional information of its control and treatment first resonance wave and first receiving antenna 3, perhaps the positional information of control and treatment second resonance wave and resonant circuit is comprised the information that presses that presses intensity, presses the position respectively accordingly.
Specifically, before and after controlled processing unit 6 is chosen and is pressed at least three first receiving antennas 3 of changes in amplitude maximum or press before and after the signal intensity of second receiving antenna 4 at least three resonant circuits of changes in amplitude maximum, and the positional information of utilizing this signal intensity and first receiving antenna 3 or second receiving antenna 4 to carry out quafric curve as the initial parameter of quafric curve approximate, obtain comprising at least accordingly the information that presses that presses intensity, presses the position respectively.Particularly, with the positional information of receiving antenna x axle,, draw quafric curve with the strength information of receiving antenna y axle as quafric curve as quafric curve; Obtain to press the position by calculating the vertex of a conic or end point, obtain to press intensity by calculating the quafric curve amplitude again.Here, quafric curve can be para-curve or sub-thread hyperbolic curve, perhaps other suitable quafric curves.
As shown in Figure 4, controlled processing unit 6 comprises first bandpass filter 61 and second bandpass filter 62.The passband of first bandpass filter 61 just makes first resonance wave pass through, and the passband of second bandpass filter 62 just makes second resonance wave pass through.
Controlled processing unit 6 also comprises multiselect one analog switch 63.First receiving antenna 3 directly or connect the input end of first bandpass filter 61 by multiselect one analog switch 63.Second receiving antenna 4 in the resonant circuit directly or connect the input end of second bandpass filter 62 by multiselect one analog switch 63.By multiselect one analog switch 63, a certain first concrete receiving antenna 3 of gating or second receiving antenna 4.
Controlled processing unit also comprises first integral circuit 65, second integral circuit 66, the first analog to digital conversion circuits (an A/D circuit) 67, second analog to digital conversion circuit (the 2nd A/D circuit) 68, main control circuit 64, transtation mission circuit 69, and one select multimode to intend switch 70.
The output terminal of first bandpass filter 61 connects the input end of first integral circuit 65, and the output terminal of first integral circuit 65 connects the input end of first analog to digital conversion circuit 67.
The output terminal of second bandpass filter 62 connects the input end of second integral circuit 66, and the output terminal of second integral circuit 66 connects the input end of second analog to digital conversion circuit 68.
By multiselect one analog switch 63, a certain first receiving antenna 3 that gating is concrete or second receiving antenna 4, thereby, main control circuit 64 can be handled the signal of first analog to digital conversion circuit, 67 outputs and the positional information that signal amplitude changes at least three first maximum receiving antennas 3, perhaps handle the signal of second analog to digital conversion circuit, 68 outputs and the positional information that signal amplitude changes at least three second maximum receiving antennas 4, comprised the information that presses that presses intensity and press the position at least.
Electronic equipment of the present utility model can have the contactor control device in the above-mentioned embodiment.Specifically, electronic equipment of the present utility model can be electronic reader with above-mentioned contactor control device, panel computer, flat-panel monitor, mobile phone etc.
Below, with transmitting antenna 2 m bar (m is the natural number more than or equal to 1) is arranged, first receiving antenna has n bar (n for greater than 2 natural number), and second receiving antenna has k bar (k for greater than 2 natural number) to be example, and the example of control method of the contactor control device of present embodiment is described.
In example as shown in Figure 5, control method comprises following several concrete steps:
Step S1: it is the square-wave signal of f that a transmitting antenna 2 sends fundamental frequency.
Step S2: whole second receiving antenna, 4 receive frequencies are the harmonic signal of f; The square-wave signal medium frequency that whole first receiving antennas, 3 reception fundamental frequencies are f is the harmonic signal of 3f; Controlled processing unit 6 obtains the signal intensity of whole second receiving antennas 4 and first receiving antenna 3, will place table 1 from the data of second receiving antenna 4, places table 2 from the data of first receiving antenna 3.
Step S3: change transmitting antenna 2, return step S1, up to all transmitting antennas 2 all repeating query arrive.
Step S4: data of the m*n in the table 2 and the contrast of initial table II if there is not significant change (promptly in tolerable noise scope), enter step S6; Otherwise, enter step S5.Wherein, the initial table II is, not having under any contact and the time writer situation, repeatedly repeats above-mentioned steps S1 ~ S3, is averaged m*n the signal intensity table from whole first receiving antennas 3 of acquisition then.
Step S5: the adjacent 2 group of first receiving antenna 3(that chooses the amplitude of variation maximum wherein 1 group for as shown in Figure 3 horizontal direction; Another group is for as shown in Figure 3 vertical direction, and every group comprises at least 3 of antenna amounts) signal intensity, it is approximate to carry out quafric curve in conjunction with the positional information of this first receiving antenna 3, obtains time writer and presses position, pressure etc.; Dispose and enter step S1 once more.
Step S6: m*k data and initial table I contrast in the table 1, if there is not significant change (promptly in tolerable noise scope), return step S1; Otherwise, enter step S7.Wherein, the initial table I is, do not having under any contact and the time writer situation, and repeating step S1 ~ S3 repeatedly is averaged m*k the signal intensity table from whole second receiving antennas 4 of acquisition then.
Step S7: the adjacent 2 group of second receiving antenna 4(that chooses the amplitude of variation maximum wherein 1 group for as shown in Figure 3 horizontal direction; Another group is for as shown in Figure 3 vertical direction, and every group comprises at least 3 of antenna amounts) signal intensity, it is approximate to carry out quafric curve in conjunction with the positional information of this second receiving antenna 4, obtains object and presses position, pressure etc.Dispose and enter step S1 once more.
In step S5 and S7, being used to obtain to press the quafric curve that position and intensity is similar to can be para-curve or sub-thread hyperbolic curve, perhaps other suitable quafric curves.
In example as shown in Figure 6, control method comprises following several concrete steps:
Step S1: transmitting antenna 2 alternately transmission frequency is that sine wave signal and the frequency of f1 is the sine wave signal of f3.
Step S2: whole second receiving antenna, 4 receive frequencies are the harmonic signal of f1; Whole first receiving antenna, 3 receive frequencies are the harmonic signal of f3; Controlled processing unit 6 obtains the signal intensity of whole second receiving antennas 4 and first receiving antenna 3, will place table 1 from the data of second receiving antenna 4, places table 2 from the data of first receiving antenna 3.
Step S3: change transmitting antenna 2, return step S1, up to all transmitting antennas 2 all repeating query arrive.
Step S4: data of the m*n in the table 2 and the contrast of initial table II if there is not significant change (promptly in tolerable noise scope), enter step S6; Otherwise, enter step S5.Wherein, the initial table II is, not having under any contact and the time writer situation, repeatedly repeats above-mentioned steps S1 ~ S3, is averaged m*n the signal intensity table from whole first receiving antennas 3 of acquisition then.
Step S5: the adjacent 2 group of first receiving antenna 3(that chooses the amplitude of variation maximum wherein 1 group for as shown in Figure 3 horizontal direction; Another group is for as shown in Figure 3 vertical direction, and every group comprises at least 3 of antenna amounts) signal intensity, it is approximate to carry out quafric curve in conjunction with the positional information of this first receiving antenna 3, obtains time writer and presses position, pressure etc.; Dispose and enter step S1 once more.
Step S6: m*k data and initial table I contrast in the table 1, if there is not significant change (promptly in tolerable noise scope), return step S1; Otherwise, enter step S7.Wherein, the initial table I is, do not having under any contact and the time writer situation, and repeating step S1 ~ S3 repeatedly is averaged m*k the signal intensity table from whole second receiving antennas 4 of acquisition then.
Step S7: the adjacent 2 group of second receiving antenna 4(that chooses the amplitude of variation maximum wherein 1 group for as shown in Figure 3 horizontal direction; Another group is for as shown in Figure 3 vertical direction, and every group comprises at least 3 of antenna amounts) signal intensity, it is approximate to carry out quafric curve in conjunction with the positional information of this second receiving antenna 4, obtains object and presses position, pressure etc.Dispose and enter step S1 once more.
In step S5 and S7, being used to obtain to press the quafric curve that position and intensity is similar to can be para-curve or sub-thread hyperbolic curve, perhaps other suitable quafric curves.
Although illustrated and described embodiment of the present utility model, for the ordinary skill in the art, be appreciated that under the situation that does not break away from principle of the present utility model and spirit and can carry out multiple variation, modification, replacement and modification that scope of the present utility model is by claims and be equal to and limit to these embodiment.
Claims (21)
1. a contactor control device is characterized in that, comprising:
Panel;
Transmitting antenna, whether touched it is arranged on the described panel, outwards send to be used to survey described panel probing wave;
At least three resonant circuits, it is arranged on the described panel, responds to described probing wave, produces resonance wave; And
Controlled processing unit, the positional information of described resonance wave of its control and treatment and described resonant circuit obtains comprising at least accordingly the information that presses that presses intensity, presses the position.
2. contactor control device according to claim 1 is characterized in that, described resonant circuit comprises:
Receiving antenna; And
At least one signal patch is connected with described receiving antenna.
3. contactor control device according to claim 2 is characterized in that, described signal patch is the tablet with pressure-sensitive capacitance characteristic.
4. contactor control device according to claim 2 is characterized in that, described signal patch is the tablet with acoustic-electric or electroacoustic property.
5. contactor control device according to claim 1 is characterized in that,
Described transmitting antenna and resonant circuit all place described back side of panel or edge, or embed described panel inside.
6. contactor control device according to claim 1 is characterized in that, described controlled processing unit comprises:
The bandpass filter that described resonance wave is passed through;
Resonant circuit directly or connect the input end of described bandpass filter by multiselect one analog switch that described controlled processing unit comprises.
7. contactor control device according to claim 6 is characterized in that, described controlled processing unit also comprises:
Integrating circuit, its input end is connected with the output terminal of bandpass filter;
Analog to digital conversion circuit, its input end is connected with the output terminal of described integrating circuit; And
Main control circuit, it handles the signal of analog to digital conversion circuit output and the positional information of resonant circuit, obtains the described information that presses.
8. contactor control device according to claim 1 is characterized in that, described panel is display screen or transparent panel.
9. a contactor control device is characterized in that, comprising:
Panel;
Transmitting antenna, whether touched it is arranged on the described panel, outwards send to be used to survey described panel probing wave;
Time writer, near or respond to described probing wave and produce resonance when pressing described panel, send first resonance wave;
Article at least three, first receiving antenna, it is arranged on the described panel, receives described first resonance wave;
At least three resonant circuits, it is arranged on the described panel, responds to described probing wave when second object that is different from described time writer presses, and produces second resonance wave; And
Controlled processing unit, the positional information of described first resonance wave of its control and treatment and described first receiving antenna, perhaps the positional information of described second resonance wave of control and treatment and described resonant circuit is pressed information respectively accordingly.
10. contactor control device according to claim 9 is characterized in that, described resonant circuit comprises:
Second receiving antenna; And
At least one signal patch is connected with described second receiving antenna.
11. contactor control device according to claim 10 is characterized in that, described signal patch is the tablet with pressure-sensitive capacitance characteristic.
12. contactor control device according to claim 10 is characterized in that, described signal patch is the tablet with acoustic-electric or electroacoustic property.
13. contactor control device according to claim 9 is characterized in that:
Described transmitting antenna, first receiving antenna and resonant circuit all place described back side of panel or edge, or embed described panel inside.
14. contactor control device according to claim 9 is characterized in that:
Described transmitting antenna dual-purpose is described first receiving antenna, and timesharing sends described probing wave and receives described first resonance wave under the control of described controlled processing unit.
15. contactor control device according to claim 9 is characterized in that, described controlled processing unit comprises:
First bandpass filter that described first resonance wave is passed through; And
Second bandpass filter that described second resonance wave is passed through.
16. contactor control device according to claim 15 is characterized in that:
Described first receiving antenna directly or connect the input end of described first bandpass filter by multiselect one analog switch that described controlled processing unit comprises.
17. contactor control device according to claim 15 is characterized in that:
Described resonant circuit directly or connect the input end of described second bandpass filter by multiselect one analog switch that described controlled processing unit comprises.
18. contactor control device according to claim 15 is characterized in that, described controlled processing unit also comprises:
The first integral circuit, its input end is connected with the output terminal of described first bandpass filter;
First analog to digital conversion circuit, its input end is connected with the output terminal of described first integral circuit;
The second integral circuit, its input end is connected with the output terminal of described second bandpass filter;
Second analog to digital conversion circuit, its input end is connected with the output terminal of described second integral circuit; And
Main control circuit, it handles the signal of described first analog to digital conversion circuit output and the positional information of first receiving antenna, perhaps handles the signal of described second analog to digital conversion circuit output and the positional information of resonant circuit, obtains the described information that presses.
19. contactor control device according to claim 9 is characterized in that, described panel is display screen or transparent panel.
20. an electronic equipment is characterized in that, comprises each described contactor control device among the claim 1-19.
21. electronic equipment according to claim 20 is characterized in that, described electronic equipment is any in electronic reader, panel computer, flat-panel monitor, the mobile phone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200712027U CN201965584U (en) | 2011-03-17 | 2011-03-17 | Touch device and electronic equipment with touch device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200712027U CN201965584U (en) | 2011-03-17 | 2011-03-17 | Touch device and electronic equipment with touch device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201965584U true CN201965584U (en) | 2011-09-07 |
Family
ID=44528131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200712027U Expired - Lifetime CN201965584U (en) | 2011-03-17 | 2011-03-17 | Touch device and electronic equipment with touch device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201965584U (en) |
-
2011
- 2011-03-17 CN CN2011200712027U patent/CN201965584U/en not_active Expired - Lifetime
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CX01 | Expiry of patent term |
Granted publication date: 20110907 |