CN201429482Y - Piezoelectric sensor and piezoelectric liquid crystal display touch panel - Google Patents
Piezoelectric sensor and piezoelectric liquid crystal display touch panel Download PDFInfo
- Publication number
- CN201429482Y CN201429482Y CN2009201310512U CN200920131051U CN201429482Y CN 201429482 Y CN201429482 Y CN 201429482Y CN 2009201310512 U CN2009201310512 U CN 2009201310512U CN 200920131051 U CN200920131051 U CN 200920131051U CN 201429482 Y CN201429482 Y CN 201429482Y
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- polarizing film
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Abstract
The utility model provides a piezoelectric sensor and a piezoelectric liquid crystal display touch panel, which is adaptable to the field of mechanism design. The piezoelectric sensor comprises a piezoelectric sensing component and a touch bump. When an external force is acted on the piezoelectric sensor, the piezoelectric sensing component contacts with a pressing surface of the touch bump to obtain comparatively large deformation and electric signals, thereby the piezoelectric sensor has relatively good sensibility. The piezoelectric sensor can be integrated inside the liquid crystal displaypanel and reduce complexity of a sensing signal processing circuit.
Description
Technical field
The utility model belongs to the mechanism design field, relates in particular to a kind of piezoelectric transducer and piezoelectric type liquid crystal display contact panel.
Background technology
Touch control display panel is applied on all types of electronic products gradually, for example mobile phone, personal digital assistant and global position system etc.In addition, since on the market for the requirement of the size of electronic product towards compact development, therefore many electronic products no longer design the finger-impu system that occupies big quantity space, and attempt replacing keyboard wherein combination of touch control input and the practice of Presentation Function the most popular present especially input technology with other input mechanism.The touch-control display panel that present prior art provides is based on condenser type and inductance type, and touch-control display panel is to install a slice contact panel on a display panel in addition additional traditionally, thereby the display panel of the touch control display that provides of prior art and contact panel is independent respectively makes.Please refer to Fig. 1, the synoptic diagram of the touch control display panel that Fig. 1 provides for prior art.As shown in Figure 1, the touch control display panel that prior art provides is assembled by a display panel and a contact panel to constitute, and wherein contact panel is attached at the outside surface of display panel.Contact panel comprises upper substrate 10, infrabasal plate 11, the first touch-control electrode 12 and the second touch-control electrode 13.Display panel comprises thin film transistor base plate 14, colored filter substrate 15, and liquid crystal layer 17 is between thin film transistor base plate 14 and colored filter substrate 15.Colored filter substrate 15 is provided with a patterning black-matrix layer 16, and a plurality of colored filter R, G, B.When external force is touched the upper substrate 10 of pushing contact panel, because the crack causes the touch-control electrode between upper and lower base plate to produce input electrical signal by contacting with each other because of upper substrate deformation changes between the contact panel.Input electrical signal can and calculate position of touch by the external circuit detecting, to reach the effect of touch-control input.Therefore, the volume of the touch-control display panel after the assembling and weight will significantly increase, and cost also increases simultaneously, also cause the whole penetration of touch-control display panel to reduce.
The utility model content
The purpose of this utility model is to provide a kind of piezoelectric transducer and piezoelectric type liquid crystal display contact panel, and the volume and the weight that are intended to solve the touch-control display panel that prior art provides are big, cost height, and the low problem of the whole penetration of touch-control display panel.
The utility model is achieved in that a kind of piezoelectric transducer, and described piezoelectric transducer comprises:
First base material;
The piezoelectricity sensing component, it is arranged on described first base material;
Second base material; And
Touch lug, it is arranged on described second base material and is corresponding with described piezoelectricity sensing component;
Described piezoelectricity sensing component further comprises:
Piezoelectric material layer;
Two electrodes, its respectively with described piezoelectric material layer electrically connect.
In above-mentioned piezoelectric transducer, an electrode of described two electrodes and a reference potential electrically connect.
In above-mentioned piezoelectric transducer, described touch lug has the surface of pushing of convex configuration more than.
In above-mentioned piezoelectric transducer, described touch lug has a circular arc type and pushes the surface.
In above-mentioned piezoelectric transducer, has a cushion space between described piezoelectric material layer and described first base material.
Another purpose of the present utility model is to provide a kind of piezoelectric type liquid crystal display contact panel, and described piezoelectric type liquid crystal display contact panel comprises:
Last light polarizing film;
Following light polarizing film, it is parallel to described upward light polarizing film and is oppositely arranged with the described light polarizing film that goes up;
First substrate, it is arranged at the described light polarizing film that goes up with described down between the light polarizing film, and the first surface of described first substrate is in the face of light polarizing film on described;
Second substrate, it is arranged at described going up between light polarizing film and described first substrate, and described second substrate has the second surface in the face of described first surface, and in the face of described the 3rd surface of going up light polarizing film;
Liquid crystal layer, it is arranged between described first substrate and described second substrate; And
A plurality of piezoelectric transducers, it is arranged at the described light polarizing film and described down between the light polarizing film that goes up, wherein each piezoelectric transducer comprises a piezoelectricity sensing component respectively, described each piezoelectricity sensing component comprises a piezoelectric material layer and two electrodes respectively, and described two electrodes electrically connect with described piezoelectric material layer respectively.
In above-mentioned piezoelectric type liquid crystal display contact panel, an arbitrary electrode of described two electrodes and a reference potential electrically connect.
In above-mentioned piezoelectric type liquid crystal display contact panel, described piezoelectric type liquid crystal display contact panel also comprises a signal read circuits, and described signal read circuits comprises a plurality of thin film transistor switch, multi-strip scanning line and many barss read line.
In above-mentioned piezoelectric type liquid crystal display contact panel, described each thin film transistor switch comprises a gate terminal, one source pole end and a drain end, the described gate terminal electrically connect of the corresponding scanning linear system of described signal read circuits and corresponding thin film transistor switch, the described drain end electrically connect of described signal read line and corresponding thin film transistor switch, and two electrodes of the described source terminal of described thin film transistor switch and corresponding piezoelectricity sensing component one not with the electrode electrically connect of a reference potential electrically connect.
In above-mentioned piezoelectric type liquid crystal display contact panel, described piezoelectric type liquid crystal display contact panel also comprises a coverlay, and it is arranged at the described light polarizing film that goes up in the face of the described surface of light polarizing film down.
In above-mentioned piezoelectric type liquid crystal display contact panel, described coverlay also comprises a signal read circuits and described each piezoelectricity sensing component electrically connect.
In above-mentioned piezoelectric type liquid crystal display contact panel, described piezoelectric type liquid crystal display contact panel also comprises a plurality of touch lug, and it is arranged on described the 3rd surface of described second substrate, and described each touch lug and described each piezoelectricity sensing component are oppositely arranged.
The piezoelectric type liquid crystal display contact panel that the utility model embodiment provides can be integrated in display panel inside on demand with piezoelectric transducer, therefore can significantly reduce thickness, weight and the cost of display panels.The touch lug structural design of piezoelectric transducer can increase the sensitivity of the electric signal and the piezoelectric transducer of piezoelectric transducer.Therefore, the complicacy of the sensing signal treatment circuit of piezoelectric transducer can reduce.
Description of drawings
Fig. 1 is the synoptic diagram of the touch control display panel that provides of prior art;
Fig. 2 is the diagrammatic cross-section that the utility model is provided by one preferred embodiment of the piezoelectric transducer provide;
Fig. 2 a has the touch lug synoptic diagram that dissimilar circular arc types is pushed the surface;
Fig. 2 b has the touch lug synoptic diagram that dissimilar many convex configuration are pushed the surface;
Fig. 3 is the diagrammatic cross-section of the preferred embodiment of piezoelectric transducer when external force is executed that provide of the utility model embodiment;
Fig. 4 is the synoptic diagram of the piezoelectric type liquid crystal display contact panel that provides of the utility model first preferred embodiment;
Fig. 5 is the Circuits System synoptic diagram of the piezoelectric type liquid crystal display contact panel that provides of the utility model first preferred embodiment;
Fig. 6 is the Circuits System distribution side view of the piezoelectric type liquid crystal display contact panel that provides of the utility model first preferred embodiment;
Fig. 7 is the synoptic diagram of the piezoelectric type liquid crystal display contact panel that provides of the utility model second preferred embodiment;
Fig. 8 is the Circuits System synoptic diagram of the piezoelectric type liquid crystal display contact panel that provides of the utility model second preferred embodiment;
Fig. 9 is the Circuits System distribution side view of the piezoelectric type liquid crystal display contact panel that provides of the utility model second preferred embodiment.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
In the middle of instructions and follow-up claim, used some vocabulary to censure specific assembly.The person with usual knowledge in their respective areas should understand, and same assembly may be called with different nouns by manufacturer.This instructions and follow-up claim are not used as distinguishing the mode of assembly with the difference of title, but the benchmark that is used as distinguishing with the difference of assembly on function.Be an open term mentioned " comprising " in the middle of instructions and the follow-up request item in the whole text, thus should be construed to " comprise but be not limited to ", this hold chat earlier bright.
Please refer to Fig. 2.Fig. 2 is the diagrammatic cross-section that the utility model is provided by one preferred embodiment of the piezoelectric transducer provide.As shown in Figure 2, the piezoelectric transducer 20 of present embodiment comprises piezoelectricity sensing component 21, and it is arranged on the base material 201; And touch lug 22, it is arranged on second base material 202 and with piezoelectricity sensing component 21 and is oppositely arranged.Wherein piezoelectricity sensing component 21 comprises piezoelectric material layer 21a, cushion space 21b, and the two electrode 21d, the 21e that electrically connect with piezoelectric material layer 21a respectively, and does not electrically link between two electrode 21d, the 21e.Cushion space 21b tolerable piezoelectricity sensing component 21 produces corresponding deformation when being subjected to pressed by external force, and avoids piezoelectricity sensing component 21 impaired when being subjected to pressed by external force.Piezoelectric transducer 20 also comprises the first protective seam 21c, and it is covered in the side of piezoelectricity sensing component 21 towards touch lug 22; And the second protective seam 21f, it is arranged at the side towards cushion space 21b.Wherein the first protective seam 21c and the second protective seam 21f are electrically insulating material, for example are SiNx, but not as limit.In the present embodiment, the piezoelectric of piezoelectric material layer 21a can be monocrystal material, macromolecular material, membraneous material, stupalith, compound substance etc., for example be materials such as PbZrTiO3, BaTiO3, ZnO, PVDF and quartz, but do not can be the piezoelectric that other can produce piezoelectric signal as limit.In the present embodiment, one electrode of two electrodes for example electrode 21d can with a reference potential Vref electrically connect, another electrode for example electrode 21e can be used as a bridge with electrically connect signal read circuits and piezoelectric material layer 21a, it is sent to signal read circuits with the electric signal that piezoelectric material layer 21a is produced, and electrically connects respectively between piezoelectric material layer 21a and two electrode 21d, 21e and link position does not exceed with the position that Fig. 2 was illustrated.The shape of the shape of piezoelectric material layer 21a and two electrode 21d, 21e and piezoelectric material layer 21a contact area can be a rectangle for example, but not as limit.
The effect of touch lug 22 is can contact with the piezoelectric material layer 21a of piezoelectricity sensing component 21 when piezoelectricity sensing component 21 or touch lug 22 are subjected to pressed by external force, and increases the deformation quantity of piezoelectric material layer 21a, to enlarge input signal values.Please refer to Fig. 2 a and Fig. 2 b.Fig. 2 a illustrated has dissimilar circular arc types push the surface the touch lug synoptic diagram, and Fig. 2 b illustrated have dissimilar many convex configuration push the surface the touch lug synoptic diagram.Shown in Fig. 2 a, touch lug 22 can be to be had dissimilar circular arc types and pushes the surface, but not as limit, and can be the surface of pushing of other arc form.Shown in Fig. 2 b, touch lug 22 can be the surface of pushing with dissimilar many convex configuration, but not as limit, and can be the surface of pushing of other many convex forms.When external force puts on first base material 201 or second base material 202,22 formation of piezoelectricity sensing component 21 and touch lug fit tightly, the piezoelectric material layer 21a of piezoelectricity sensing component 21 can form electric signal so that convert mechanical energy to the electric energy form by fitting tightly the stressed deformation quantity that increases piezoelectric material layer with the surperficial whole face of pushing of touch lug 22 at this moment.Therefore the utility model piezoelectric transducer can increase the electric signal of the utility model piezoelectric transducer and improve sensitivity owing to have special touch lug of pushing the surface when touch-control, can reduce the complicacy of back segment signal processing circuit thus.
Please refer to Fig. 3.Fig. 3 is the diagrammatic cross-section of the preferred embodiment of the utility model piezoelectric transducer when external force applies.Wherein touch lug 22 can contact with 21 whole of piezoelectricity sensing components to increase the deformation quantity of piezoelectricity sensing component 21.
Please refer to Fig. 4.The synoptic diagram of the piezoelectric type liquid crystal display contact panel that Fig. 4 provides for the utility model first preferred embodiment.As shown in Figure 4, piezoelectric type liquid crystal display contact panel comprises light polarizing film 41, following light polarizing film 42, first substrate 43, second substrate 44, the 3rd substrate 45, liquid crystal layer 46, and a plurality of piezoelectric transducer 20.Following light polarizing film 42 is parallel to light polarizing film 41 and is oppositely arranged with last light polarizing film 41.First substrate 43 can be a for example thin film transistor base plate, is arranged at down the surface of light polarizing film 42 in the face of last polarisation 41 films, and it has first surface 43a in the face of going up light polarizing film 41.Second substrate 44 is arranged between the light polarizing film 41 and first substrate 43, and has a second surface 44a in the face of first surface 43a, and the 3rd a surperficial 44b in the face of last light polarizing film 41.Second substrate 44 can comprise that also patterning black-matrix layer 44c and selectivity comprise that colored filter 44R, 44G, 44B are arranged at second surface 44a.In addition, be provided with separation material 47 between first substrate 43 and second substrate 44, in order to keep the gap of first substrate 43 and second substrate 44.The 3rd substrate 45 can be a for example coverlay, and the 3rd substrate 45 comprises a signal read circuits 48.Each piezoelectric transducer 20, comprise that a piezoelectricity sensing component 21 is arranged at the 3rd surperficial 44b that the 3rd substrate 45 is arranged at second substrate 44 in the face of the 3rd substrate 45 in the face of a surface and the touch lug 22 of the 3rd surperficial 44b of second substrate 44, but not as limit.For instance, piezoelectricity sensing component 21 also can be arranged at the 3rd surperficial 44b of second substrate 44, and touch lug 22 also can be arranged at the surface of the 3rd substrate 45 in the face of the 3rd surperficial 44b of second substrate 44.Each piezoelectric transducer 20, preferable system corresponding pattern black-matrix layer 44c respectively is provided with, so that do not influence aperture ratio of pixels, but not as limit.
Please refer to Fig. 5 and Fig. 6.The Circuits System synoptic diagram of the piezoelectric type liquid crystal display contact panel that Fig. 5 provides for the utility model shown in Figure 4 first preferred embodiment.The Circuits System distribution side view of the piezoelectric type liquid crystal display contact panel that Fig. 6 provides for the utility model shown in Figure 4 first preferred embodiment.As shown in Figure 5, the Circuits System of piezoelectric type liquid crystal display contact panel comprises a panel pixel drive subsystem and a sensing signal processing subsystem.The panel pixel driver sub-system comprises pixel gate pole driver 52 and pixel source driver 53, wherein pixel gate pole driver 52 is responsible for providing the gate voltage signal of the thin film transistor (TFT) that drives panel pixel, and pixel source driver 53 is responsible for providing the source voltage signal of the thin film transistor (TFT) that drives panel pixel.The sensing signal processing subsystem comprises signal read circuits 48, signal reader 54 and sweep circuit device 55, wherein signal read circuits 48 directly receives the electric signal that is sensed from piezoelectric transducer (figure does not show), and signal reader 54 is responsible for processing signals and is read the electric signal that circuit 48 is detected, and sweep circuit device 55 is responsible for providing the signal of the thin film transistor switch 49 of signal read circuits 48.As shown in Figure 6, in the present embodiment, pixel gate pole driver 52 and pixel source driver 53 are arranged on first substrate 43.Signal read circuits 48, signal reader 54 and sweep circuit device 55 are arranged on the 3rd substrate 45.As shown in Figure 5, signal read circuits 48 comprises a plurality of thin film transistor switch 49, multi-strip scanning line 50 and many barss read line 51.Each thin film transistor switch 49 comprises gate terminal 49a, source terminal 49b and drain end 49c.The sweep trace 50 of signal read circuits 48 is the gate terminal 49a electrically connect with thin film transistor switch 49; And signal read line 51 is the drain end 49c electrically connect with thin film transistor switch 49; Two electrodes of the source terminal 49b of thin film transistor switch 49 and piezoelectricity sensing component 21 one not with the electrode of reference potential electrically connect electrode 21e electrically connect for example.In addition, signal read circuits 48 has the function of supporting the input of panel multi-point touch.Signal reader 54 receives and amplifies electric signal from the thin film transistor switch 49 source terminal 49b of signal read circuits 48, and sweep circuit device 55 is responsible for providing the trigger voltage signal of gate terminal 49a of the thin film transistor switch 49 of signal read circuits 48.
The liquid crystal display contact panel of present embodiment has advantages such as thin thickness, in light weight, high penetration, low cost and high sensing sensitivity compared to traditional external hanging type contact panel.
Please refer to Fig. 7.As shown in Figure 7, the synoptic diagram of the piezoelectric type liquid crystal display contact panel that provides for the utility model second preferred embodiment of Fig. 7.As shown in Figure 7, piezoelectric type liquid crystal display contact panel comprises light polarizing film 41, following light polarizing film 42, first substrate 43, second substrate 44, liquid crystal layer 46, and a plurality of piezoelectric transducer 20.Following light polarizing film 42 is parallel to light polarizing film 41 and is oppositely arranged with last light polarizing film 41.First substrate 43 can be a for example thin film transistor base plate, is arranged at down the surface of light polarizing film 42 in the face of last light polarizing film 41, and it has a first surface 43a in the face of going up light polarizing film 41.Second substrate 44, be arranged at the surface of light polarizing film 41 in the face of first substrate 43, and has a second surface 44a in the face of first surface 43a, and one in the face of the 3rd surperficial 44b of last light polarizing film 41, and second substrate 44 can comprise that also patterning black-matrix layer 44c and selectivity comprise that chromatic filter layer 44d is arranged at second surface 44a.In addition, be provided with separation material 47 between first substrate 43 and second substrate 44, in order to keep the gap of first substrate 43 and second substrate 44.Last light polarizing film 41 is arranged at the 3rd surperficial 44b of second substrate 44.Second substrate 44 also can comprise signal read circuits 48.Each piezoelectric transducer 20 comprises that piezoelectricity sensing component 21 is arranged at the second surface 44a of second substrate 44 and the first surface 43a that touch lug 22 is arranged at first substrate 43, but not as limit.For instance, the piezoelectricity sensing component also can be arranged at the first surface 43a of first substrate 43 and the second surface 44a that touch lug 22 also can be arranged at second substrate 44.Each piezoelectric transducer 20, preferable, be corresponding pattern black-matrix layer 44c setting respectively, so that do not influence aperture ratio of pixels, but not as limit.
Please refer to Fig. 8 and Fig. 9.The Circuits System synoptic diagram of the piezoelectric type liquid crystal display contact panel that Fig. 8 provides for the utility model shown in Figure 7 second preferred embodiment.The Circuits System distribution side view of the piezoelectric type liquid crystal display contact panel that Fig. 9 provides for the utility model shown in Figure 7 second preferred embodiment.As shown in Figure 8, the Circuits System of piezoelectric type liquid crystal display contact panel comprises a panel pixel drive subsystem and a sensing signal processing subsystem.The panel pixel driver sub-system comprises pixel gate pole driver 52 and pixel source driver 53, wherein pixel gate pole driver 52 is responsible for providing the gate voltage signal of the thin film transistor (TFT) that drives panel pixel, and pixel source driver 53 is responsible for providing the source voltage signal of the thin film transistor (TFT) that drives panel pixel.The sensing signal processing subsystem comprises signal read circuits 48, signal reader 54 and sweep circuit device 55, wherein signal read circuits 48 directly receives the electric signal from piezoelectric transducer sensed, and signal reader 54 is responsible for the electric signal of being detected that processing signals reads circuit 48, and sweep circuit device 55 is responsible for providing the touching signals of thin film transistor switch.As shown in Figure 9, pixel gate pole driver 52 and pixel source driver 53 are arranged on first substrate 43.Signal read circuits 48, signal reader 54 and sweep circuit device 5 are arranged on second substrate 45.As shown in Figure 8, signal read circuits 48 comprises a plurality of thin film transistor switch 49, multi-strip scanning line 50 and many barss read line 51.Each thin film transistor switch 49 comprises gate terminal 49a, source terminal 49b and drain end 49c.The sweep trace 50 of signal read circuits 48 is the gate terminal 49a electrically connect with thin film transistor switch 49, and signal read line 51 is the drain end 49c electrically connect with thin film transistor switch 49, and two electrodes of the source terminal 49b of thin film transistor switch 49 and piezoelectricity sensing component 21 one not with the electrode of reference potential electrically connect electrode 21e electrically connect for example.In addition, signal read circuits 48 has the function of supporting the input of panel multi-point touch.Signal reader 54 receives and amplifies electric signal from the thin film transistor switch 49 source terminal 49b of signal read circuits 48, and sweep circuit device 55 is responsible for providing the trigger voltage signal of gate terminal 49a of the thin film transistor switch 49 of signal read circuits 48.
The liquid crystal display contact panel of present embodiment can further reduce thickness and weight compared to last embodiment, and has the more advantage of high penetration.
From the above, the piezoelectric type liquid crystal display contact panel that the utility model embodiment provides can be integrated in display panel inside on demand with piezoelectric transducer, therefore can significantly reduce thickness, weight and the cost of display panels.The touch lug structural design of piezoelectric transducer can increase the sensitivity of the electric signal and the piezoelectric transducer of piezoelectric transducer.Therefore, the complicacy of the sensing signal treatment circuit of piezoelectric transducer can reduce.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (12)
1, a kind of piezoelectric transducer is characterized in that, described piezoelectric transducer comprises:
First base material;
The piezoelectricity sensing component, it is arranged on described first base material;
Second base material; And
Touch lug, it is arranged on described second base material and is corresponding with described piezoelectricity sensing component;
Described piezoelectricity sensing component further comprises:
Piezoelectric material layer;
Two electrodes, its respectively with described piezoelectric material layer electrically connect.
2, piezoelectric transducer as claimed in claim 1 is characterized in that, an electrode of described two electrodes and a reference potential electrically connect.
3, piezoelectric transducer as claimed in claim 1 is characterized in that, described touch lug has the surface of pushing of convex configuration more than.
4, piezoelectric transducer as claimed in claim 1 is characterized in that, described touch lug has a circular arc type and pushes the surface.
5, piezoelectric transducer as claimed in claim 1 is characterized in that, has a cushion space between described piezoelectric material layer and described first base material.
6, a kind of piezoelectric type liquid crystal display contact panel is characterized in that, described piezoelectric type liquid crystal display contact panel comprises:
Last light polarizing film;
Following light polarizing film, it is parallel to described upward light polarizing film and is oppositely arranged with the described light polarizing film that goes up;
First substrate, it is arranged at the described light polarizing film that goes up with described down between the light polarizing film, and the first surface of described first substrate is in the face of light polarizing film on described;
Second substrate, it is arranged at described going up between light polarizing film and described first substrate, and described second substrate has the second surface in the face of described first surface, and in the face of described the 3rd surface of going up light polarizing film;
Liquid crystal layer, it is arranged between described first substrate and described second substrate; And
A plurality of piezoelectric transducers, it is arranged at the described light polarizing film and described down between the light polarizing film that goes up, wherein each piezoelectric transducer comprises a piezoelectricity sensing component respectively, described each piezoelectricity sensing component comprises a piezoelectric material layer and two electrodes respectively, and described two electrodes electrically connect with described piezoelectric material layer respectively.
7, piezoelectric type liquid crystal display contact panel as claimed in claim 6 is characterized in that, an arbitrary electrode of described two electrodes and a reference potential electrically connect.
8, piezoelectric type liquid crystal display contact panel as claimed in claim 6, it is characterized in that, described piezoelectric type liquid crystal display contact panel also comprises a signal read circuits, and described signal read circuits comprises a plurality of thin film transistor switch, multi-strip scanning line and many barss read line.
9, piezoelectric type liquid crystal display contact panel as claimed in claim 8, it is characterized in that, described each thin film transistor switch comprises a gate terminal, one source pole end and a drain end, the described gate terminal electrically connect of the corresponding sweep trace of described signal read circuits and corresponding thin film transistor switch, the described drain end electrically connect of described signal read line and corresponding thin film transistor switch, and two electrodes of the described source terminal of described thin film transistor switch and corresponding piezoelectricity sensing component one not with the electrode electrically connect of a reference potential electrically connect.
10, piezoelectric type liquid crystal display contact panel as claimed in claim 6 is characterized in that, described piezoelectric type liquid crystal display contact panel also comprises a coverlay, and it is arranged at the described light polarizing film that goes up in the face of the described surface of light polarizing film down.
11, piezoelectric type liquid crystal display contact panel as claimed in claim 10 is characterized in that, described coverlay also comprises a signal read circuits and described each piezoelectricity sensing component electrically connect.
12, want 10 described piezoelectric type liquid crystal display contact panels as right, it is characterized in that, described piezoelectric type liquid crystal display contact panel also comprises a plurality of touch lug, it is arranged on described the 3rd surface of described second substrate, and described each touch lug and described each piezoelectricity sensing component are oppositely arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201310512U CN201429482Y (en) | 2009-04-22 | 2009-04-22 | Piezoelectric sensor and piezoelectric liquid crystal display touch panel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009201310512U CN201429482Y (en) | 2009-04-22 | 2009-04-22 | Piezoelectric sensor and piezoelectric liquid crystal display touch panel |
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| CN201429482Y true CN201429482Y (en) | 2010-03-24 |
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| CN2009201310512U Expired - Fee Related CN201429482Y (en) | 2009-04-22 | 2009-04-22 | Piezoelectric sensor and piezoelectric liquid crystal display touch panel |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102402336A (en) * | 2011-11-15 | 2012-04-04 | 深圳市华星光电技术有限公司 | Energy-saving LCD (liquid crystal display) device |
| CN105651429A (en) * | 2016-01-04 | 2016-06-08 | 京东方科技集团股份有限公司 | Piezoelectric element, manufacturing method thereof, and piezoelectric sensor |
| CN109459068A (en) * | 2018-10-09 | 2019-03-12 | 佛山市卓膜科技有限公司 | A kind of precision piezoelectric sensor |
-
2009
- 2009-04-22 CN CN2009201310512U patent/CN201429482Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102402336A (en) * | 2011-11-15 | 2012-04-04 | 深圳市华星光电技术有限公司 | Energy-saving LCD (liquid crystal display) device |
| CN105651429A (en) * | 2016-01-04 | 2016-06-08 | 京东方科技集团股份有限公司 | Piezoelectric element, manufacturing method thereof, and piezoelectric sensor |
| WO2017118032A1 (en) * | 2016-01-04 | 2017-07-13 | 京东方科技集团股份有限公司 | Piezoelectric element and manufacturing method therefor, piezoelectric sensor |
| US10545059B2 (en) | 2016-01-04 | 2020-01-28 | Boe Technology Group Co., Ltd. | Piezoelectric element having improved sensitivity, method for manufacturing the same and piezoelectric sensor |
| CN109459068A (en) * | 2018-10-09 | 2019-03-12 | 佛山市卓膜科技有限公司 | A kind of precision piezoelectric sensor |
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Owner name: CPT TECHNOLOGY (GROUP) CO., LTD. Free format text: FORMER OWNER: CPT DISPLAY TECHNOLOGY SHENZHEN LTD. Effective date: 20130704 |
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Effective date of registration: 20130704 Address after: 350000, No. 6 West Road, Mawei District, Fujian, Fuzhou Patentee after: CPT DISPLAY TECHNOLOGY (SHENZHEN)CO., LTD. Patentee after: Chunghwa Picture Tubes Ltd. Address before: 518000, Guangming hi tech Industrial Park, Shenzhen, Guangdong, No. 9, Ming Tong Road, Baoan District Patentee before: CPT Display Technology Shenzhen Ltd. Patentee before: Chunghwa Picture Tubes Ltd. |
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