CN203057505U - Piezoelectric ceramic array film - Google Patents
Piezoelectric ceramic array film Download PDFInfo
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- CN203057505U CN203057505U CN 201220686571 CN201220686571U CN203057505U CN 203057505 U CN203057505 U CN 203057505U CN 201220686571 CN201220686571 CN 201220686571 CN 201220686571 U CN201220686571 U CN 201220686571U CN 203057505 U CN203057505 U CN 203057505U
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- piezoelectric ceramic
- array film
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- ceramic array
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Abstract
The utility model provides a piezoelectric ceramic array film, comprising a base material and multiple vibration units. The multiple vibration units are arranged on the base material in a mutually independent manner; and each vibration unit comprises a piezoelectric ceramic layer and at least one pair of electrode layers, wherein the piezoelectric ceramic layer is arranged between the at least one pair of electrode layers. The piezoelectric ceramic array film of the utility model employs the mutually independent piezoelectric vibration units to realize diversified control modes; and can realize complex functions such as providing complex feedback signals and demodulating sound signals which can be heard by the ears.
Description
Technical field
The utility model relates to the diversified piezoelectric ceramic array film of a kind of control model.
Background technology
Ceramic layer in the vibration level of existing piezoelectric ceramic array film is one big complete potsherd, just the electrode layer on it has been divided into a plurality of fritters, but each fritter of electrode layer still interconnects, when utilizing inverse piezoelectric effect, whole piezoelectric ceramic array film can only receive an input signal, simultaneously also have only a vibrational state, can't realize complicated function, better tactile experience can't be provided.When utilizing piezoelectric effect, press which position of piezoelectric ceramic array film and all have only an output signal, therefore very simple feedback signal can only be provided.
Because ceramic layer is one big complete potsherd, when the input ultrasonic signal, be difficult to form the fixing junior unit in a plurality of borders, therefore be difficult in air, produce nonlinear effect, can't demodulate the voice signal that people's ear can be listened.
The utility model content
The technical problem that the utility model mainly solves is that existing piezoelectric ceramic array film can't be realized complicated function, complicated feedback signal can't be provided and can't demodulate the voice signal that people's ear can be listened.
In order to solve the problems of the technologies described above, the utility model embodiment discloses a kind of piezoelectric ceramic array film, described piezoelectric ceramic array film comprises base material and a plurality of piezoelectric vibrations unit, what described a plurality of piezoelectric vibrations unit was separate is arranged on the described base material, each described piezoelectric vibration unit comprises piezoceramics layer and at least one pair of electrode layer, and described piezoceramics layer is folded between described at least one pair of electrode layer.
In a preferred embodiment of the present utility model, the driving signal that each described piezoelectric vibration unit receives at one time is identical or different.
In a preferred embodiment of the present utility model, described piezoelectric ceramic array film comprises protective layer, and described piezoelectric vibration unit is between described base material and described protective layer.
In a preferred embodiment of the present utility model, described base material and described protective layer are toughness material.
In a preferred embodiment of the present utility model, described piezoelectric ceramic array film comprises filled media, and described filled media is between described base material and described protective layer.
In a preferred embodiment of the present utility model, each described piezoelectric vibration unit comprises drive signal line and solder joint, described solder joint and the welding of described electrode layer, and described drive signal line is connected with described solder joint.
In a preferred embodiment of the present utility model, described a plurality of piezoelectric vibrations unit is array distribution at described substrate surface.
In a preferred embodiment of the present utility model, the area of each described piezoelectric vibration unit is smaller or equal to 0.25 square centimeter.
In a preferred embodiment of the present utility model, described piezoelectric vibration unit is rectangle, circle, triangle or trapezoidal.
In a preferred embodiment of the present utility model, the thickness of described piezoelectric ceramic array film is more than or equal to 1 millimeter.
Compared to prior art, described piezoelectric ceramic array film of the present utility model adopts separate piezoelectric vibration unit, can realize diversified control model, and it can realize complicated function, complicated feedback signal can be provided, can also demodulate the voice signal that people's ear can be listened.
Description of drawings
In order to be illustrated more clearly in the technical scheme among the utility model embodiment, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings, wherein:
Fig. 1 is the perspective view of the utility model piezoelectric ceramic array film one preferred embodiment;
Fig. 2 is the schematic top plan view of piezoelectric ceramic array film shown in Figure 1;
Fig. 3 is the part-structure generalized section of piezoelectric ceramic array film shown in Figure 1;
Fig. 4 is that the array distribution of piezoelectric ceramic array film shown in Figure 1 is given an example;
Fig. 5 is the schematic diagram of a plurality of piezoelectric vibrations unit vibration of the utility model piezoelectric ceramic array film;
Fig. 6 is projection and the depression control effect schematic diagram of the utility model piezoelectric ceramic array film.
Embodiment
To the technical scheme among the utility model embodiment be clearly and completely described below, obviously, described embodiment only is a part of embodiment of the present utility model, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making all other embodiment that obtain under the creative work prerequisite, all belong to the scope of the utility model protection.
The utility model embodiment discloses a kind of piezoelectric ceramic array film, see also Fig. 1 and Fig. 2, the thickness of described piezoelectric ceramic array film 1 is more than or equal to 1 millimeter, it comprises base material 10 and a plurality of piezoelectric vibrations unit 11,11 separate being arranged on the described base material 10 of described a plurality of piezoelectric vibrations unit.Wherein, described base material 10 has been one deck planar materials of carrying effect, it can be soft bent material (as flexible board), and also can be has certain degree of hardness and not bent material (as metallic plate or duroplasts plane) can also be to be laminated by multilayer material.
Described a plurality of piezoelectric vibrations unit 11 is array distribution on described base material 10 surfaces, and the shape of each described piezoelectric vibration unit 11 can be rectangle, circle, triangle, trapezoidal or polygon that other is suitable.Each described piezoelectric vibration unit 11 comprises piezoceramics layer 12 and at least one pair of electrode layer 13, and described piezoceramics layer 12 is folded between described at least one pair of electrode layer 13.Wherein, described piezoceramics layer 12 can be made up of multilayer piezoelectric ceramic, and certainly, the material of described piezoceramics layer 12 is not limited to piezoelectric ceramic, also can be other suitable piezoelectric.See also Fig. 3, have certain physical independence between each described piezoelectric vibration unit 11, fill between the adjacent piezoelectric vibration unit 11 with air or certain dielectric material 14 to adjust the body vibration characteristic of described piezoelectric ceramic array film 1.In the present embodiment, the area of each described piezoelectric vibration unit 11 that is to say that smaller or equal to 0.25 square centimeter the size of each described piezoelectric vibration unit 11 is so little, make that in touch process each time the user can touch a plurality of described piezoelectric vibrations unit 11 simultaneously.
Further, see also Fig. 3, described piezoelectric ceramic array film 1 can also comprise protective layer 15 and filled media 14, and described piezoelectric vibration unit 11 and described filled media 14 are all between described base material 10 and described protective layer 15.Described protective layer 15 and described base material 10 can all be toughness materials, both materials even can be identical.
Each described piezoelectric vibration unit 11 comprises drive signal line 16 and solder joint 17, described solder joint 17 and described electrode layer 13 welding, described drive signal line 16 is connected with described solder joint 17, relatively independent between each described piezoelectric vibration unit 11, but provide the described drive signal line 16 that drives signal can be with certain form mutual conduction to it.
The driving signal of described drive signal line 16 is provided by a signal generation module (not shown), and this drives signal and drives described piezoelectric vibration unit 11 through the power amplifier module (not shown).Wherein, the driving signal that each described piezoelectric vibration unit 11 receives at one time can be identical, also can be different.The driving signal that receives at one time when each described piezoelectric vibration unit 11 is not simultaneously, it produces various motion according to driving signal separately, thereby abundant control model can be provided, below illustrate the various control pattern of described piezoelectric ceramic array film 1.
Control model one: when the driving signal of input is AC signal, because bending change is done in each piezoelectric vibration unit 11 constantly, just produce vibration, and the frequency of its vibration and the frequency dependence of input signal, the amplitude of vibration is decided by the amplitude of signal, and a plurality of adjacent piezoelectric vibrations unit 11 also can strengthen amplitude for simultaneously identical AC signal.This control model can be used for generating virtual haptic (Haptics).
Control model two: when the driving signal of input is direct current signal, if piezoelectric vibration unit 11 can then can be implemented in projection stable on the free plane and depression effect from the free state compound bending; If piezoelectric vibration unit 11 can only bend in one direction, then can only stablize a kind of effect that realizes in projection and the depression.The amplitude that increases direct current signal can increase the relative displacement of projection and depression.In addition, a plurality of adjacent piezoelectric vibration unit 11 also can increase relative displacement for simultaneously identical direct current signal.This control model also can be used for generating virtual haptic.
Control model three: when producing deformation because of inverse piezoelectric effect, also there is piezoelectric effect simultaneously in described piezoelectric ceramic array film 1, under external stressed effect, produce deformation, and then the generation signal of telecommunication, the described piezoelectric vibration unit 11 of diverse location produces signal and just can reflect the pressure that diverse location is subjected to, and can gather the pressure signal (upper limit of counting is identical with the number of described piezoelectric vibration unit 11) of a plurality of points simultaneously, the pressure signal that produces is analyzed the control signal that just can produce various complexity.This control model can be used for touching functions such as control, hand-written control and virtual key.
Control model four: described piezoelectric ceramic array film 1 can equivalence be a burst of row of radiation-curable hyperacoustic ultrasonic parameter, if the ultrasonic signal of importing is carried out the signal processing to be sent by described piezoelectric ceramic array film 1 again, because the aerial nonlinear effect of ultrasonic wave, can demodulate the signal that people's ear can be listened, and because ultrasonic characteristic, the aerial propagation of this signal has extremely strong directive property (privacy is strong) and propagation distance (low-yield decay) extremely far away.
See also Fig. 4, when described mode of vibration is carried out array distribution in Fig. 4 mode, zone A and each self-contained at least one described piezoelectric vibration unit of regional B, when the piezoelectric vibration unit among the regional A vibrates with first frequency, piezoelectric vibration unit among the B of zone vibrates with second frequency, and the piezoelectric vibration unit among the regional C except regional A and regional B is all static.This moment, touch area A, regional B can experience different oscilloreceptions simultaneously with regional C.
See also Fig. 5, left part is zoning plan among Fig. 5, the right side be divided into time-the amplitude schematic diagram, be that circle is example with the piezoelectric vibration unit, A', B', C' are three zones that concentric circles that three radiuses increase successively surrounds, piezoelectric vibration cell input signal among the A ' is for 1., and the piezoelectric vibration cell input signal among the B ' is for 2., and the piezoelectric vibration cell input signal among the C ' is for 3..The amplitude of three input signals is identical, but phase place differs 90 ° successively.Under this type of drive, the wavy vibration mode of the common formation of A', B' and C'.
See also Fig. 6 again, left part is arranged schematic diagram for the piezoelectric vibration unit among Fig. 6, the right side be divided into time-the amplitude schematic diagram, be that circle is example with the piezoelectric vibration unit again, part piezoelectric vibration unit A " be transfused to direct current signal 1. ', another part piezoelectric vibration unit 11B " be transfused to direct current signal 2. '." from equilbrium position skew certain distance, B " from the equilbrium position with A " is offset certain distance in the other direction to A.The deviation post that A " and B " remains on separately is constant, and then the surface of described piezoelectric ceramic array film 1 just produces staggered alternate projection and depression.If signal amplitude, effect piezoelectric vibration cell position to projection and depression carry out more complicated processing, the sensation of experiencing can produce multiple different variation.
In sum, described piezoelectric ceramic array film of the present utility model adopts separate piezoelectric vibration unit, can realize diversified control model, and it can realize complicated function, complicated feedback signal can be provided, can also demodulate the voice signal that people's ear can be listened.
The above only is embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model description to do; or directly or indirectly be used in other relevant technical field, all in like manner be included in the scope of patent protection of the present utility model.
Claims (10)
1. piezoelectric ceramic array film, it is characterized in that, comprise base material and a plurality of piezoelectric vibrations unit, what described a plurality of piezoelectric vibrations unit was separate is arranged on the described base material, each described piezoelectric vibration unit comprises piezoceramics layer and at least one pair of electrode layer, and described piezoceramics layer is folded between described at least one pair of electrode layer.
2. piezoelectric ceramic array film according to claim 1 is characterized in that, the driving signal that each described piezoelectric vibration unit receives at one time is identical or different.
3. piezoelectric ceramic array film according to claim 1 is characterized in that, described piezoelectric ceramic array film comprises protective layer, and described piezoelectric vibration unit is between described base material and described protective layer.
4. piezoelectric ceramic array film according to claim 3 is characterized in that, described base material and described protective layer are toughness material.
5. piezoelectric ceramic array film according to claim 3 is characterized in that, described piezoelectric ceramic array film comprises filled media, and described filled media is between described base material and described protective layer.
6. piezoelectric ceramic array film according to claim 1 is characterized in that, each described piezoelectric vibration unit comprises drive signal line and solder joint, described solder joint and the welding of described electrode layer, and described drive signal line is connected with described solder joint.
7. piezoelectric ceramic array film according to claim 1 is characterized in that, described a plurality of piezoelectric vibrations unit is array distribution at described substrate surface.
8. piezoelectric ceramic array film according to claim 1 is characterized in that, the area of each described piezoelectric vibration unit is smaller or equal to 0.25 square centimeter.
9. piezoelectric ceramic array film according to claim 1 is characterized in that, described piezoelectric vibration unit is rectangle, circle, triangle or trapezoidal.
10. piezoelectric ceramic array film according to claim 1 is characterized in that, the thickness of described piezoelectric ceramic array film is more than or equal to 1 millimeter.
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| CN 201220686571 CN203057505U (en) | 2012-12-13 | 2012-12-13 | Piezoelectric ceramic array film |
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| CN 201220686571 CN203057505U (en) | 2012-12-13 | 2012-12-13 | Piezoelectric ceramic array film |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106843508A (en) * | 2017-03-29 | 2017-06-13 | 苏州攀特电陶科技股份有限公司 | Piezoelectric type haptic feedback module and terminal |
| WO2018090892A1 (en) * | 2016-11-17 | 2018-05-24 | 贵州钛方乐感科技有限公司 | Piezoelectric sensing device and application |
| CN109068249A (en) * | 2018-06-29 | 2018-12-21 | 友达光电股份有限公司 | Horn structure layer and display |
| CN110196650A (en) * | 2018-02-27 | 2019-09-03 | 深圳富泰宏精密工业有限公司 | The electronic device for touching feedback and sound output is realized by piezoelectric-array |
| CN110428597A (en) * | 2019-07-11 | 2019-11-08 | 大唐国际发电股份有限公司张家口发电厂 | The disconnected coal signalling alarm equipment of dynamic based on piezoelectric ceramics and its logical design |
| CN110868670A (en) * | 2019-11-22 | 2020-03-06 | 常州元晶电子科技有限公司 | High-directivity ultrasonic transducer array |
| US20210048842A1 (en) * | 2019-08-16 | 2021-02-18 | Samsung Display Co., Ltd. | Circuit board having sound generator and display device including the same |
| CN112484902A (en) * | 2020-12-15 | 2021-03-12 | 吉林大学 | Capacitive pressure sensor and temperature drift solution |
| CN113132874A (en) * | 2019-12-31 | 2021-07-16 | 乐金显示有限公司 | Flexible diaphragm and display device having the same |
| JP2021164165A (en) * | 2020-03-31 | 2021-10-11 | エルジー ディスプレイ カンパニー リミテッド | Vibration device and display apparatus including the same |
-
2012
- 2012-12-13 CN CN 201220686571 patent/CN203057505U/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018090892A1 (en) * | 2016-11-17 | 2018-05-24 | 贵州钛方乐感科技有限公司 | Piezoelectric sensing device and application |
| CN106843508B (en) * | 2017-03-29 | 2023-10-20 | 苏州攀特电陶科技股份有限公司 | Piezoelectric type tactile feedback module and terminal |
| CN106843508A (en) * | 2017-03-29 | 2017-06-13 | 苏州攀特电陶科技股份有限公司 | Piezoelectric type haptic feedback module and terminal |
| CN110196650A (en) * | 2018-02-27 | 2019-09-03 | 深圳富泰宏精密工业有限公司 | The electronic device for touching feedback and sound output is realized by piezoelectric-array |
| CN109068249A (en) * | 2018-06-29 | 2018-12-21 | 友达光电股份有限公司 | Horn structure layer and display |
| CN110428597A (en) * | 2019-07-11 | 2019-11-08 | 大唐国际发电股份有限公司张家口发电厂 | The disconnected coal signalling alarm equipment of dynamic based on piezoelectric ceramics and its logical design |
| US11650621B2 (en) * | 2019-08-16 | 2023-05-16 | Samsung Display Co., Ltd. | Circuit board having sound generator and display device including the same |
| US20210048842A1 (en) * | 2019-08-16 | 2021-02-18 | Samsung Display Co., Ltd. | Circuit board having sound generator and display device including the same |
| CN110868670A (en) * | 2019-11-22 | 2020-03-06 | 常州元晶电子科技有限公司 | High-directivity ultrasonic transducer array |
| CN113132874A (en) * | 2019-12-31 | 2021-07-16 | 乐金显示有限公司 | Flexible diaphragm and display device having the same |
| US11669126B2 (en) * | 2019-12-31 | 2023-06-06 | Lg Display Co., Ltd. | Flexible vibration film and display having the same |
| CN113132874B (en) * | 2019-12-31 | 2024-04-02 | 乐金显示有限公司 | Flexible vibration film and display device having the same |
| JP7148668B2 (en) | 2020-03-31 | 2022-10-05 | エルジー ディスプレイ カンパニー リミテッド | Vibration device and display device including the same |
| JP2021164165A (en) * | 2020-03-31 | 2021-10-11 | エルジー ディスプレイ カンパニー リミテッド | Vibration device and display apparatus including the same |
| US11671750B2 (en) | 2020-03-31 | 2023-06-06 | Lg Display Co., Ltd. | Vibration device and display apparatus including the same |
| JP7499814B2 (en) | 2020-03-31 | 2024-06-14 | エルジー ディスプレイ カンパニー リミテッド | Vibration device and display device including the same |
| CN112484902A (en) * | 2020-12-15 | 2021-03-12 | 吉林大学 | Capacitive pressure sensor and temperature drift solution |
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Legal Events
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| C14 | Grant of patent or utility model | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20170505 Address after: Singapore Ang Mo Kio 65 Street No. 10 techpoint Building 1 floor, No. 8 Co-patentee after: AAC Acoustic Technologies (Changzhou) Co.,Ltd. Patentee after: AAC TECHNOLOGIES Pte. Ltd. Co-patentee after: AAC TECHNOLOGIES (NANJING) Co.,Ltd. Address before: Wujin Nanxiashu town Jiangsu city Changzhou province 213167 Co-patentee before: AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) Co.,Ltd. Patentee before: AAC Acoustic Technologies (Changzhou) Co.,Ltd. Co-patentee before: AAC TECHNOLOGIES (NANJING) Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20211213 |
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| CF01 | Termination of patent right due to non-payment of annual fee |