CN203311372U - Touch control device - Google Patents
Touch control device Download PDFInfo
- Publication number
- CN203311372U CN203311372U CN2013203028809U CN201320302880U CN203311372U CN 203311372 U CN203311372 U CN 203311372U CN 2013203028809 U CN2013203028809 U CN 2013203028809U CN 201320302880 U CN201320302880 U CN 201320302880U CN 203311372 U CN203311372 U CN 203311372U
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- Prior art keywords
- piezoelectric sensor
- contact panel
- display screen
- piezoelectric
- touch control
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Abstract
The embodiment of the utility model provides a touch control device, which relates to the technical field of touch control, can overcome the stress function of a device shell, and reduces touch control precision error in four corner areas of a display screen, so as to reduce the generation of a touch control failure situation. The touch control device comprises a display screen, a device shell, a touch control panel and piezoelectric sensors, wherein the touch control panel is arranged at the back of the display screen, the piezoelectric sensors are arranged on the touch control panel, and the piezoelectric sensors in the four corner areas of the touch control panel are internally shrunk towards the center of the touch control panel. The embodiment of the utility model is used for manufacturing the touch control device.
Description
Technical field
The utility model relates to the touch technology field, relates in particular to a kind of contactor control device.
Background technology
Current touch technology has the electric resistance touch-control technology, piezoelectric type touch technology and capacitive touch control techniques, wherein, the piezoelectric type touch screen is comprised of the piezoelectric sensor that is arranged on the display screen back side and signal ejector, for the ease of location algorithm, calculate, existing piezoelectric type touch screen evenly is arranged in piezoelectric sensor on the substrate at the display screen back side, when External Force Acting being arranged on touch-screen the time, signal processing circuit calculates the coordinate figure of contact point by the signal power of adjacent four sensors around monitoring external force contact point to extract corresponding eigenwert according to default algorithm.
State in realization in the process of piezoelectric type touch technology, the inventor finds that in prior art, there are the following problems at least:
The edge of general display screen all can be wrapped by device housings, therefore the shell of equipment can have effect of stress to the edge of display screen, cause the display screen fringe region can't free pressurized, when External Force Acting is arranged to four angular zone of display screen, the effect of stress of shell is maximum, in practice, the electric signal numeric ratio electric signal numerical value under normal circumstances of discovery piezoelectric sensor conversion in display screen four angular zones is wanted little decades of times, can't accurately locate the position of contact point, thereby produce the phenomenon of touch-control " malfunctioning ".
The utility model content
Embodiment of the present utility model provides a kind of contactor control device, can effectively reduce the touch-control trueness error in touching display screen interior angle zone, and has improved simultaneously the touch-control sensitivity in touching display screen interior angle zone.
For achieving the above object, embodiment of the present utility model adopts following technical scheme:
A kind of contactor control device, is characterized in that, described contactor control device comprises:
Display screen, contact panel, device housings and piezoelectric sensor, described contact panel are positioned at the described display screen back side, and described piezoelectric sensor is positioned on described contact panel, and described display location is in described device housings inside;
At the back side of described display screen, comprise at least one piezoelectric sensor, the piezoelectric sensor in described contact panel four angular zones inside contracts setting to described contact panel center.
Piezoelectric sensor outside the piezoelectric sensor that described contact panel four angular zones arrange, uniformly-spaced evenly arrange on the same direction on described contact panel.
Piezoelectric sensor outside the piezoelectric sensor that described contact panel four angular zones arrange, the arrangement mode that adopts every at least two piezoelectric sensors to form a touch area on described contact panel is arranged to described piezoelectric sensor.
Described piezoelectric sensor in described contact panel four angular zones inside contracts setting to described contact panel center, comprising:
The position of piezoelectric sensor inside contracts to described display screen planar central position, the described distance inside contracted is determined according to the size that described device housings covers the display screen fringe region, and the described distance inside contracted is so that described piezoelectric sensor is positioned at described display screen internal plane.
Described contactor control device also comprises the signal ejector, and described signal ejector comprises printing board PCB plate, flexible PCB FPC soft board, high temperature resistance polyester film PET film.
Described piezoelectric sensor comprises piezoelectric ceramic piece or piezoelectric membrane.
A kind of contactor control device that the utility model embodiment provides, by the piezoelectric sensor that will be positioned at contact panel four angular zones, inside contract to the contact panel center, make when External Force Acting is arranged at display screen four angular zone, can overcome the effect of stress of device housings, reduce the touch-control trueness error in display screen four angular zones, thereby reduce the generation of touch-control " malfunctioning " phenomenon.
The accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The first structural representation of a kind of contactor control device that Fig. 1 provides for embodiment of the present utility model;
The second structural representation of a kind of contactor control device that Fig. 2 provides for embodiment of the present utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making under the creative work prerequisite the every other embodiment obtained, and all belong to the scope of the utility model protection.
The structural representation of a kind of contactor control device 01 that Fig. 1 provides for the utility model, comprise display screen 011, device housings 012, piezoelectric sensor 014 and contact panel 015 that piezoelectric sensor 013 in four angular zones and four angular zones are outer, wherein, device housings 012 wraps display screen 011, contact panel 015 is positioned at the back side of display screen, piezoelectric sensor 013 and piezoelectric sensor 014 can be positioned on contact panel 015, and can be arranged on the back side of display screen, it does not affect transmittance and other display effects of display screen 011, piezoelectric sensor 014 can evenly be arranged on contact panel 015, namely at the piezoelectric sensor 014 on contact panel 015, can equidistantly arrange on same direction, and on contact panel 015, the position of the piezoelectric sensor 013 in four angular zones can inside contract to contact panel 015De center, the size apart from distance between visual device shell 012 and display screen 011 that it inside contracts and determining, generally can its to inside contract distance can be that the planar range that makes the piezoelectric sensor 013 be in control panel 015 4 angular zones be in display screen 011 fully gets final product with interior,
Exemplary, the touch-control implementation procedure of above contactor control device 01 can be:
When in four angular zones that have External Force Acting at display screen 011, the piezoelectric sensor 013 be in contact panel 015 4 angular zones namely can this acting force of perception, and the pressure signal that will receive is converted to electric signal, the processor of equipment can calculate according to this electric signal the coordinate figure of the application point of this acting force by distance-energy match relational expression, to realize the location of touch point, wherein said distance-energy match relational expression means is the pressure experienced of the piezoelectric sensor on this contact panel and the application point corresponding relation apart from the distance of this pressure transducer, the specific descriptions of this corresponding relation are difference according to the difference of equipment Touch Screen and piezoelectric sensor and to some extent, can by correction, obtain according to concrete actual conditions.
A kind of contactor control device that the utility model embodiment provides, by the piezoelectric sensor that will be positioned at contact panel four angular zones, inside contract to the contact panel center, make when External Force Acting is arranged at display screen four angular zone, can overcome the effect of stress of device housings, reduce the touch-control trueness error in display screen four angular zones, thereby reduce the generation of touch-control " malfunctioning " phenomenon.
The structural representation of a kind of contactor control device 02 that Fig. 2 provides for the utility model, comprise display screen 021, device housings 022, piezoelectric sensor 024 and contact panel 025 that piezoelectric sensor 023 in four angular zones and four angular zones are outer, wherein, device housings 022 wraps display screen 021, contact panel 025 is positioned at the back side of display screen, piezoelectric sensor 023 and piezoelectric sensor 024 can be positioned on contact panel 025, and can be arranged on the back side of display screen, it does not affect transmittance and other display effects of display screen 021, in the arranging rule of piezoelectric sensor 024 on contact panel 025 and contactor control device 01 shown in Figure 1, the arranging rule of piezoelectric sensor 014 is different, on contact panel 025, piezoelectric sensor 024 is arranged according to every four principles that form a touch area 026, the scope of its touch area 026 can be predefined fixed value, generally area 0 26 suitably can be amplified, piezoelectric sensor 023 in contact panel 025 4 angular zones is also to arrange according to above-mentioned arranging rule, the touch area that four piezoelectric sensors in contact panel 025 4 angular zones form is the area 0 27 in Fig. 2, wherein, the position of the piezoelectric sensor 023 on contact panel 015 in four angular zones can inside contract to contact panel 025De center, the size apart from distance between visual device shell 022 and display screen 021 that it inside contracts and determining, generally its to inside contract distance can be that the planar range that makes the piezoelectric sensor 023 be in control panel 025 4 angular zones be in display screen 021 fully gets final product with interior, because the piezoelectric sensor 023 in contact panel 025 4 angular zones is also according to four piezoelectric sensors, forming a touch area 027, and processing has been carried out inside contracting in the position of the piezoelectric sensor 023 in contact panel 025 4 angular zones, and area 0 26 has been carried out to suitable amplification, therefore, touch area 027 is less than the scope of the touch area 026 that the piezoelectric sensor 024 on contact panel 025 other zones forms.
Exemplary, the touch-control implementation procedure of above contactor control device 02 can be:
When the touch area 026 that has External Force Acting on display screen 021 is inner, four these acting forces of pressure transducer perception that form this zone, and the pressure signal that will receive is converted to electric signal, the processor of equipment can calculate the coordinate figure of the application point of this acting force by distance-energy match relational expression according to this electric signal, to realize the location of touch point.
When the touch area 027 in four angular zones that have External Force Acting at display screen 021 is interior, four these acting forces of pressure transducer perception that form this zone, and the pressure signal that will receive is converted to electric signal, the processor of equipment can calculate according to this electric signal the coordinate figure of the application point of this acting force by distance-energy match relational expression, to realize the location of touch point, because the scope that is in the touch area 027 in contact panel 025 4 angular zones is less, therefore when having acting force to act on this zone, electrical signal intensity and the touch-control signal to noise ratio (S/N ratio) of piezoelectric sensor have been improved, reduced the touch-control error in contact panel 025 4 angular zones.
Wherein, distance-energy match relational expression means is the pressure experienced of the piezoelectric sensor on this contact panel and the application point corresponding relation apart from the distance of this pressure transducer, the specific descriptions of this corresponding relation are difference according to the difference of equipment Touch Screen and piezoelectric sensor and to some extent, can by correction, obtain according to concrete actual conditions.
A kind of contactor control device that the utility model embodiment provides, by the piezoelectric sensor that will be positioned at contact panel four angular zones, inside contract to the contact panel center, make when External Force Acting is arranged at display screen four angular zone, can overcome the effect of stress of device housings, reduce the touch-control trueness error in display screen four angular zones, thereby reduce the generation of touch-control " malfunctioning " phenomenon.
The above; it is only embodiment of the present utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; can expect easily changing or replacing, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of described claim.
Claims (6)
1. a contactor control device, is characterized in that, described contactor control device comprises:
Display screen, contact panel, device housings and piezoelectric sensor, described contact panel are positioned at the described display screen back side, and described piezoelectric sensor is positioned on described contact panel, and described display location is in described device housings inside;
At the back side of described display screen, comprise at least one piezoelectric sensor, the piezoelectric sensor in described contact panel four angular zones inside contracts setting to described contact panel center.
2. install according to claim 1, it is characterized in that, the piezoelectric sensor outside the piezoelectric sensor that described contact panel four angular zones arrange, uniformly-spaced evenly arrange on the same direction on described contact panel.
3. install according to claim 1, it is characterized in that, piezoelectric sensor outside the piezoelectric sensor that described contact panel four angular zones arrange, the arrangement mode that adopts every at least two piezoelectric sensors to form a touch area on described contact panel is arranged to described piezoelectric sensor.
4. according to the described device of claim 1-3 any one, it is characterized in that, the piezoelectric sensor in described contact panel four angular zones inside contracts setting to described contact panel center, comprising:
The position of piezoelectric sensor inside contracts to described display screen planar central position, and the described distance inside contracted is determined according to the size that described device housings covers the display screen fringe region, so that described piezoelectric sensor is positioned at described display screen internal plane.
5. install according to claim 4, it is characterized in that, described contactor control device also comprises the signal ejector, and described signal ejector comprises printing board PCB plate, flexible PCB FPC soft board, high temperature resistance polyester film PET film.
6. install according to claim 5, it is characterized in that, described piezoelectric sensor comprises piezoelectric ceramic piece or piezoelectric membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203028809U CN203311372U (en) | 2013-05-29 | 2013-05-29 | Touch control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203028809U CN203311372U (en) | 2013-05-29 | 2013-05-29 | Touch control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203311372U true CN203311372U (en) | 2013-11-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203028809U Expired - Lifetime CN203311372U (en) | 2013-05-29 | 2013-05-29 | Touch control device |
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| CN (1) | CN203311372U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103823592A (en) * | 2014-02-26 | 2014-05-28 | 汕头超声显示器（二厂）有限公司 | Display device with mechanical sensing function |
-
2013
- 2013-05-29 CN CN2013203028809U patent/CN203311372U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103823592A (en) * | 2014-02-26 | 2014-05-28 | 汕头超声显示器（二厂）有限公司 | Display device with mechanical sensing function |
| CN103823592B (en) * | 2014-02-26 | 2017-04-26 | 汕头超声显示器技术有限公司 | Display device with mechanical sensing function |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131127 |
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| CX01 | Expiry of patent term |