CN201673483U - Finger contact-control positioning device - Google Patents
Finger contact-control positioning device Download PDFInfo
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- CN201673483U CN201673483U CN2010202062315U CN201020206231U CN201673483U CN 201673483 U CN201673483 U CN 201673483U CN 2010202062315 U CN2010202062315 U CN 2010202062315U CN 201020206231 U CN201020206231 U CN 201020206231U CN 201673483 U CN201673483 U CN 201673483U
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- vibration wave
- finger
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- state panel
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Abstract
The utility model discloses a finger contact-control positioning device, belonging to the contact control technical field. The finger contact-control positioning device comprises a solid panel, at least three vibration wave sensors and a positioning identifying and processing unit, wherein, the solid panel is used for producing and broadcasting vibration waves correspondingly after being contacted by the finger; the vibration wave sensors are respectively and closely arranged on the solid panel in order to transform the vibration produced when the finger is contacted with the solid panel into electric signals; the positioning identifying and positioning unit is used for calculating and acquiring the contact position of the finger on the solid panel by receiving the electric signals of the vibration wave sensors and integrating the physical position information of the vibration wave sensors. The utility model realizes precise finger positioning with low cost by fully using the vibration waves produced when the finger is contacted with an object.
Description
Technical field
The utility model belongs to the touch technology field, particularly a kind of finger touch positioner.
Background technology
Along with the widespread use of touch technology, people feel to point the convenience of controlling, the particularly release of U.S. Apple mobile phone and panel computer all the more, promote the exploration of people to new technology especially.
At present popular capacitive touch screen can conveniently realize singly referring to or referring to more operation, but the cost height, and easily liquid body influences bearing accuracy, and contactor control device must place the display screen front, can influence the display brightness of display screen like this.For the relatively cheap resistance touch screen of price, also can realize finger manipulation, but easily damaged, and contactor control device need be arranged on the display screen front equally and influence display brightness.
In the existing touch technology, only exist minority can place the contactor control device of display screen back.Electromagnetism touch technology for example, information such as position that can the perception time writer, pressure, angle, but this technology is insensitive to the induction of finger, is difficult to realize the finger touch location.
Therefore, need badly at present propose a kind of point controlled, cost is low and location accurate localization device.
The utility model content
The purpose of this utility model is intended to one of solve the aforementioned problems in the prior at least.
For this reason, to propose a kind of cost low and locate accurate finger touch positioner and method for embodiment of the present utility model.
According to an aspect of the present utility model, the utility model embodiment has proposed a kind of finger touch positioner, and described finger touch positioner comprises: the solid-state panel that correspondingly produces and propagate vibration wave after finger is in contact with it; At least 3 vibration wave sensors are close to respectively on the described solid-state panel, contact the vibration wave that is produced with described solid-state panel and are converted into electric signal pointing; Obtain the location identification processing unit of the contact position of finger on described solid-state panel, described location identification processing unit is by receiving the electric signal of described vibration wave sensor, and, calculate and obtain the contact position of finger on described solid-state panel in conjunction with the physical location information of described vibration wave sensor.
According to the further embodiment of the utility model, described vibration wave sensor comprises sonic sensor or piezoelectric sensor.
According to the further embodiment of the utility model, described vibration wave sensor is omnidirectional's vibration wave sensor.
According to the further embodiment of the utility model, the distance between the described vibration wave sensor is to be provided with according to the sensitivity of sensor itself and the light and heavy degree of finger touches.
According to the further embodiment of the utility model, described solid-state panel is any non-liquid state, non-gaseous material.
According to the further embodiment of the utility model, but described solid-state panel multilayer stack.Described vibration wave sensor is embedded in the inside of described solid-state panel.
According to the further embodiment of the utility model, described vibration wave sensor pastes the front or the back side that is placed on described solid-state panel, wherein points the front that surface of contact is described solid-state panel.
According to the further embodiment of the utility model, described location identification processing unit is according to the electric signal of signal intensity selective reception predetermined vibration wave sensor.
Finger touch positioner of the present utility model by quantity and the position that the vibration wave sensor rationally is set, makes full use of finger and contacts the vibration wave that is produced with object, and the low-cost mode with the vibration wave sensor has realized precise positioning of fingers.
In addition, make the vibration wave sensor fit in the back side of display screen, also solved simultaneously prior art the influence that can not avoid to display performance.Additional aspect and the advantage of the utility model will provide in the following description, will become from the following description obviously, or recognize by practice of the present utility model.
Description of drawings
Above-mentioned and/or additional aspect of the present utility model and advantage are from obviously and easily understanding becoming the description of embodiment below in conjunction with accompanying drawing, wherein:
Fig. 1 is the synoptic diagram according to the finger touch positioner of an embodiment of the utility model;
Fig. 2 is the finger touch positioner synoptic diagram according to another embodiment of the utility model;
Fig. 3 is the circuit diagram according to the location identification processing unit of the utility model embodiment.
Embodiment
Describe embodiment of the present utility model below in detail, the example of described embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Below 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.
The utility model discloses a kind of finger touch positioner, contact vibration wave and the vibration wave sensor that is produced with object by making full use of finger, in mode cheaply, the accurate location of having realized finger touch.Here, the utility model relates to finger touch positioner and method is to refer at one hand.
Finger touch positioner of the present utility model comprises solid-state panel, at least 3 vibration wave sensors and locatees the identification processing unit.Solid-state panel can be the material of any non-liquid state, on-gaseous, for example comprises plank, force fit plate, sheet metal, injection molding plates, tempered glass, acrylic plate, LCDs, electronic-paper display screen, organic EL display panel (OLED) etc.The front of solid-state panel is used for contacting with finger, receives touch action such as finger click, friction, thereby correspondingly produce and propagate vibration wave after finger is in contact with it.
The vibration wave sensor of predetermined quantity is close to respectively on the solid-state panel, contacts the vibration wave that is produced with solid-state panel and is converted into electric signal in order to pointing.Minimum 3 vibration wave sensors are set, to respond to single finger when contacting the surface of contact of solid-state panel to being applied to respectively, with the finger is the center, points to the vibration wave on their all directions, thereby realizes the location, accurate contact of single finger from a plurality of directions.
And, linear between vibration wave energy that the solid-state panel of finger touches is produced and the transmission range, it is nearest from the finger contact point promptly to respond to the strongest sensor, and it is remote from the finger contact point to respond to sensor on the weak side, and therefore minimum 3 sensors can be realized the finger contact location.
In the vibration wave number of sensors that is provided with during more than 3, location identification processing unit can be according to electrical signal intensity, therefrom selection correspondence is carried out accurate localization processing, 3 promptly common point locations than the electric signal of 3 vibration wave sensor transmissions of hard intensity electric signal.
Here, the vibration wave sensor can be sonic sensor, piezoelectric sensor.
The vibration wave sensor can paste and be placed on solid-state panel front, the edge position of keeping to the side, and wherein finger is the front of solid-state panel with the surface of contact of solid-state panel.
Perhaps, in order not affect the appearance, perhaps do not influence the display brightness that for example LCDs, electronic-paper display screen or organic EL display panel etc. have the solid-state panel of display screen, the vibration wave sensor can paste the back side that is placed on solid-state panel, promptly relative with surface of contact face.Place the back side of solid-state panel also can effectively weaken simultaneously the interference that the external world (except that its front) vibrates in a jumble of vibration wave sensor.
Perhaps, but for the solid-state panel that comprises the stack of multilayers such as LCDs, tempered glass, current-carrying plate or reflector, the vibration wave sensor can be embedded in the inside of solid-state panel.Like this, the vibration wave sensor can seal, and the interference of the inner mixed and disorderly vibration of system platform of this finger touch positioner is used in reduction equally effectively.
The quantity of vibration wave sensor can be adjusted according to actual needs, for example for saving cost or space, removes one of them vibration wave sensor; Perhaps increase more vibration wave sensor for improving precision.Vibration wave sensor response frequency requires: below the general recommendations 500hz.
About the requirement of vibration wave sensor orientation, preferably adopt omni-directional vibration wave sensor, i.e. the induction of the vibration wave of sensor can not be subjected to the influence of direction of vibration propagation.Under the more situation of number of sensors, orientation also can be considered.
The vibration wave size sensor that is adopted, preferred thickness are controlled at below the 1mm, and length and width or diameter are controlled at below the 3mm.And, when adopting a plurality of vibration wave sensor, required distance between each vibration wave sensor is: will be controlled at certain limit according to the light and heavy degree and the cost consideration of the required finger touches of the sensitivity of sensor itself, solid-state panel, and advise between 10mm～200mm usually.
Identification processing unit in location is used to receive and handle the electric signal that a plurality of vibration wave sensors send, and in conjunction with the physical location information of vibration wave sensor, calculates and obtain the contact position of finger on solid-state panel.
The position of location identification processing unit is random, and it is inner or outside to be arranged on solid face, as long as be connected with the vibration wave sensor electrical.
Location identification processing unit can be PC system platform or system-on-a-chip, and the location recognition principle about location identification processing unit hereinafter will provide detailed description after a while.
With reference now to Fig. 1,, this figure is the synoptic diagram according to the finger touch positioner of an embodiment of the utility model.
Fig. 1 is the finger touch positioner structural representation according to an embodiment of the utility model.As shown in the figure, vibration wave sensor 21～24 is close to four jiaos of places, the back side of putting at solid-state panel 10, and 4 vibration wave sensors are connected with location identification processing unit 30 by lead.
In the illustrated embodiment, solid-state panel 10 is a rectangle, but the utility model is not limited to this shape, and in actual applications, solid-state panel can be set to arbitrary shape according to the actual requirements.
As indicated above, the position of vibration wave sensor 21～24 and quantity can be adjusted according to actual needs, as are close to and put in center, four limits, solid-state panel 10 back sides.
Fig. 2 is the finger touch positioner structural representation according to another embodiment of the utility model, and in this embodiment, solid-state panel 10 is the Electronic Paper screen, and the vibration wave sensor that is provided with is 9.
As shown in the figure, Electronic Paper screen 10 is connected on the system platform 50, and system platform 50 is used for controlling Electronic Paper screen 10 and shows.Vibration wave sensor 41～49 is close to the back side of Electronic Paper screen 10 by equidirectional equidistant triplex row three row modes, and all vibration wave sensors 41～49 all are wired on the location identification processing unit 30 simultaneously.Identification processing unit 30 in location is passed to system platform 50 with the finger contact positional information after the electric signal according to 41～49 transmission of vibration wave sensor carries out the finger contact location.Thereby system platform 50 by control Electronic Paper screen 10, is presented at the contact on the Electronic Paper screen 10 after obtaining the finger contact position.Like this, this device touches from finger and shows feedback, can accurately verify the touch-control effect.
Click Electronic Paper screen 10 or finger on Electronic Paper screen 10 during frictional movement at finger, 9 vibration wave sensors can both be received the signal of varying strength, location identification processing unit 30 preferably choose wherein 3 signals the strongest come location Calculation.
About the principle of work of location identification processing unit 30, can discern the circuit diagram of processing unit with reference to the location of the utility model embodiment shown in Figure 3.
As shown in Figure 3, in this embodiment, location identification processing unit 30 is connected with N the vibration wave sensor 60 of 1～N, thereby according to the electric signal that a plurality of vibration wave sensors 60 that are provided with on the solid-state panel provide, the finger contact position is positioned.
In this embodiment, vibration wave sensor 60 is converted to voltage signal with vibration wave.Those skilled in the art by using the vibration wave sensor of concrete dissimilar or model, can change vibration wave and obtain for example electric signal of strength of current, resistance or other digital forms obviously as can be known, and the utility model is not limited to this specific embodiment.
Wherein, identification processing unit 30 in location comprises that respectively N the signal amplifier 32 of the 1～N that connects one to one with N vibration wave sensor 60, N the integrating circuit 33 of 1～N, 34,1 N of N voltage comparator of 1～N select 35,1 analog to digital converter (A/D) 36 of 1 analog switch and processor (CPU) 37.
Usually and since the signal of vibration wave sensor 60 a little less than, about tens millivolts, therefore need amplify through signal amplifier 32, generally amplify 30～100 times.Signal after the amplification is connected on voltage comparator 34 and the integrating circuit 33, and the effect of voltage comparator 34 is the reference voltages that whether surpass certain setting by the signal after relatively amplifying, and as 500 millivolts, occurrence will be seen signal to noise ratio (S/N ratio).If surpass, export high level or low level notification processor 37 immediately, after there is signal on processor 37 certain road of acquisition, close response to all voltage comparators 34, calculate up to processor 37 and finish one-time positioning.The amplifying signal that processor 37 starts synchronously to this road and near 2～4 vibration wave sensors 60 thereof carries out integration, and the integration certain hour stops integration after for example about 100 microseconds.By analog switch 35 and analog to digital converter 36, processor 37 successively obtains the amplifying signal integrated value of this road and near 2～4 vibration wave sensors thereof again.
Real data proves that " size of integrated value " approaches linear relationship with " finger contacts solid-state positions of panels to distance between each vibration wave sensor ", therefore after having obtained 3 integrated values and physical location, promptly can obtain to point the contact position on solid-state panel than the strong vibration wave sensor.
Finger touch positioner of the present utility model by quantity and the position that the vibration wave sensor rationally is set, makes full use of finger and contacts the vibration wave that is produced with object, and the low-cost mode with the vibration wave sensor has realized precise positioning of fingers.
In addition, make the vibration wave sensor fit in the back side of display screen, also solved simultaneously prior art the influence that can not avoid to display performance.
Finger touch positioner of the present utility model and method, technology is simple compared to existing technology, and cost more has superiority.
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 (9)
1. a finger touch positioner is characterized in that, described finger touch positioner comprises:
After being in contact with it, finger correspondingly produces and propagates the solid-state panel of vibration wave;
At least 3 vibration wave sensors are close to respectively on the described solid-state panel, contact the vibration wave that is produced with described solid-state panel and are converted into electric signal pointing;
Obtain the location identification processing unit of the contact position of finger on described solid-state panel, described location identification processing unit is by receiving the electric signal of described vibration wave sensor, and, calculate and obtain the contact position of finger on described solid-state panel in conjunction with the physical location information of described vibration wave sensor.
2. finger touch positioner according to claim 1 is characterized in that, described vibration wave sensor comprises sonic sensor or piezoelectric sensor.
3. finger touch positioner according to claim 1 is characterized in that, described vibration wave sensor is omnidirectional's vibration wave sensor.
4. finger touch positioner according to claim 1 is characterized in that, the distance between the described vibration wave sensor is to be provided with according to the sensitivity of sensor itself and the light and heavy degree of finger touches.
5. finger touch positioner according to claim 1 is characterized in that, described solid-state panel is any non-liquid state, non-gaseous material.
6. finger touch positioner according to claim 1 is characterized in that, but described solid-state panel multilayer stack.
7. according to claim 5 or 6 described finger touch positioners, it is characterized in that described vibration wave sensor pastes the front or the back side that is placed on described solid-state panel, wherein points the front that surface of contact is described solid-state panel.
8. finger touch positioner according to claim 6 is characterized in that described vibration wave sensor is embedded in the inside of described solid-state panel.
9. finger touch positioner according to claim 1 is characterized in that, described location identification processing unit is according to the electric signal of signal intensity selective reception predetermined vibration wave sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202062315U CN201673483U (en) | 2010-05-21 | 2010-05-21 | Finger contact-control positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202062315U CN201673483U (en) | 2010-05-21 | 2010-05-21 | Finger contact-control positioning device |
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| Publication Number | Publication Date |
|---|---|
| CN201673483U true CN201673483U (en) | 2010-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010202062315U Expired - Fee Related CN201673483U (en) | 2010-05-21 | 2010-05-21 | Finger contact-control positioning device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101859211A (en) * | 2010-05-21 | 2010-10-13 | 汉王科技股份有限公司 | Finger touch positioner and method |
| CN104267842A (en) * | 2014-09-11 | 2015-01-07 | 惠州Tcl移动通信有限公司 | Touch display panel and touch feedback method thereof |
-
2010
- 2010-05-21 CN CN2010202062315U patent/CN201673483U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101859211A (en) * | 2010-05-21 | 2010-10-13 | 汉王科技股份有限公司 | Finger touch positioner and method |
| CN101859211B (en) * | 2010-05-21 | 2013-05-29 | 汉王科技股份有限公司 | Finger touch positioner and method |
| CN104267842A (en) * | 2014-09-11 | 2015-01-07 | 惠州Tcl移动通信有限公司 | Touch display panel and touch feedback method thereof |
| CN104267842B (en) * | 2014-09-11 | 2020-07-10 | 惠州Tcl移动通信有限公司 | Touch display panel and touch feedback method thereof |
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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: 20101215 Termination date: 20180521 |
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| CF01 | Termination of patent right due to non-payment of annual fee |