CN203799351U - Paper-base flexible touch sensor - Google Patents
Paper-base flexible touch sensor Download PDFInfo
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- CN203799351U CN203799351U CN201420203849.4U CN201420203849U CN203799351U CN 203799351 U CN203799351 U CN 203799351U CN 201420203849 U CN201420203849 U CN 201420203849U CN 203799351 U CN203799351 U CN 203799351U
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- 230000015572 biosynthetic process Effects 0.000 claims description 5
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- -1 polypropylene Polymers 0.000 description 6
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 2
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- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
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- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- HGAZMNJKRQFZKS-UHFFFAOYSA-N chloroethene;ethenyl acetate Chemical compound ClC=C.CC(=O)OC=C HGAZMNJKRQFZKS-UHFFFAOYSA-N 0.000 description 2
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- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 2
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
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Abstract
The utility model discloses a paper-base flexible touch sensor comprising a first component, a second component and a third component. The first component is composed of a paper-base insulation layer and a first metal conductive layer deposited on the paper-base insulation layer, the second component is composed of a paper-base insulation layer, a second metal conductive layer deposited on the paper-base insulation layer, and electrets coating the surface of the second metal conductive layer, and the third component is connected between the first component and the second component and is formed in an isolation layer with a plurality of holes. The paper-base flexible touch sensor as an active sensor can acquire higher power and flexibility and is integrally easy to fold and bend and convenient to be integrated with other flexible electronic devices, thereby being applicable to integration with other flexible electronic devices and application in daily life.
Description
Technical field
The utility model belongs to touch sensing device technology field, more specifically, relates to the flexible touch sensing of a kind of paper substrate.
Background technology
Touch sensing, as a kind of data input device, obtains a wide range of applications at present in the electronic equipments such as smart mobile phone, panel computer, notebook computer and Ipad.Existing touch sensing mainly can be divided into capacitance touching control sensor, electric resistance touch-control sensor, surface wave touch sensing and infrared-type touch sensor according to principle of work.Along with to electronic product gentlier, thinner, performance requirement faster, rigidity touch sensing is replaced by flexible touch sensing more and more, to meet more attractive touch-control design.
Yet the substrate of existing flexible touch sensing is mainly the flexible material based on high molecular polymer, and be prepared from according to capacitive sensing, pressure drag or piezoelectric effect etc.In manufacture process, often there is more problem in the flexible touch sensing of this class: the first, and on high molecular polymer, preparing electrode is an industrial problem, its cost and cost are all the resistances of its development of restriction; The second, high molecular polymer is unfavorable for recycling, and for device recycling, cost is larger, and processing procedure is easily to environment; The 3rd, due to the restriction of its principle of work and basic structure, output power, resistance to bending, processing convenience and with other flexible electronic devices integrated aspect still remain to be further improved.
Utility model content
Above defect and Improvement requirement for prior art, the purpose of this utility model is to provide a kind of paper substrate flexible touch sensing, wherein by the basic structure to flexible touch sensing, design, the aspects such as structure of substrate material, key job element are studied simultaneously, corresponding obtain cost more cheap, be convenient to processing, possess high sensitivity, and be particularly useful for the touch sensing product mutually integrated with other flexible electronic devices.
According to the utility model, provide a kind of paper substrate flexible touch sensing, it is characterized in that, the flexible touch sensing of this paper substrate comprises:
The first assembly, described the first assembly consists of jointly paper substrate insulation course and the first metal conducting layer, wherein the first metal conducting layer comprises and is a plurality of pixel cells that planar array formula is arranged, these pixel cells are deposited on the whole lower surface of paper substrate insulation course, and from the side of each pixel cell separately extraction electrode with integrated formation the first electrode;
The second assembly, described the second assembly consists of jointly paper substrate insulation course, the second metal conducting layer and electret layer, wherein the second metal conducting layer comprises equally and is a plurality of pixel cells that planar array formula is arranged, these pixel cells are deposited on the whole upper surface of paper substrate insulation course and mutually opposed with a plurality of pixel cells of the first metal conducting layer, and from the side of each pixel cell separately extraction electrode with integrated formation the second electrode; Described electret layer is formed on the whole upper surface of the second metal conducting layer;
The 3rd assembly, described the 3rd assembly is connected between the first assembly and the second assembly, and be rendered as the separation layer form that possesses a plurality of holes, wherein each hole correspondence is arranged between both mutual opposed pixel cells of first, second metal conducting layer, and its shape matches with size and pixel cell.
As further preferably, the material of described paper substrate insulation course is selected from kraft, plotting paper, cover paper or art paper etc.
As further preferably, described first, second metal conducting layer is made by gold, silver, copper, aluminium or their materials such as oxide.
As further preferably, on described electret layer and the opposed surface of the first metal conducting layer, be processed with the concaveconvex structure of a plurality of micro-nano magnitudes.
As further preferably, described paper substrate insulation course, electret layer are transparent configuration.
In general, according to the flexible touch sensing of paper substrate of the present utility model compared with prior art, mainly possess following technological merit:
1, by the flexible principle of work of touch sensing of paper substrate and the structure of critical component are studied and are improved, test shows to obtain higher output power and sensitivity, and this sensor is active sensor array, and its integral body is easy to folding crooked, be convenient to other flexible electronic devices carry out integrated, therefore applicable to the integrated and daily life application with other flexible electronic devices;
2, by adopting the good paper base material of all kinds of pliabilities directly as the substrate of touch sensing, corresponding acquisition is easy to bending fold, with low cost, pollution-free and be convenient to the effect of processing and manufacturing in enormous quantities; In addition, can also pass through to select suitable paper substrate and electret, and then form transparent touch sensing product; The performance that above-mentioned selected electret possesses good absorption and preserves electric charge, can produce high-output power, the feature that has wear-resisting, resistance to bending simultaneously and be convenient to process.
Accompanying drawing explanation
Fig. 1 is according to the structural representation of the pixel cell of the flexible touch sensing of paper substrate of the present utility model;
Fig. 2 is the Voltage-output strength signal producing when reality is tested according to the flexible touch sensing of prepared 3 * 3 array paper substrates of preferred embodiment of the utility model for showing;
Fig. 3 is for showing the test curve figure when electric capacity of 2.2 μ F is charged according to the flexible touch sensings of prepared 3 * 3 array paper substrates of the utility model above-described embodiment;
In institute's drawings attached, identical Reference numeral is used for representing identical element or structure, wherein:
1-first assembly 2-second assembly 3-the 3rd assembly 11-paper substrate insulation course 12-first metal conducting layer 21-paper substrate insulation course 22-the second metal conducting layer 23-electret layer 31-separation layer
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Fig. 1 is according to the structural representation of the pixel cell of the flexible touch sensing of paper substrate of the present utility model.As shown in fig. 1, according to the flexible touch sensing of paper substrate of the present utility model, mainly comprise the first assembly 1, the second assembly 2 and the 3rd assembly, wherein the first assembly 1 by paper substrate insulation course 11 (for example, its material can directly be taken from kraft, plotting paper, the good paper of this class pliability such as cover paper or art paper or transparency paper) and be deposited on the first metal conducting layer 12 compositions on 11 1 surfaces of paper substrate insulation course (being illustrated as lower surface), this metal conducting layer 12 comprises and is a plurality of pixel cells that planar array formula is arranged, these pixel cells preferably pass through magnetron sputtering, the mode of hot evaporation or inkjet printing is deposited on the surface of paper substrate insulation course, and the side of each pixel cell is extraction electrode be integrated into the first electrode separately, be connected with external circuit thus, similarly, the second assembly 2 is by paper substrate insulation course 21, be deposited on second metal conducting layer 22 on these paper substrate insulation course 21 surfaces (being illustrated as upper surface) and be bonded in these conductive layer 22 another surperficial electret layers 23 and jointly form, this second metal conducting layer 22 comprises equally and is a plurality of pixel cells that planar array formula is arranged, these pixel cells pass through magnetron sputtering, the mode of hot evaporation or inkjet printing is deposited on the whole surface of paper substrate insulation course, and the side of each pixel cell is extraction electrode be integrated into the second electrode separately, be connected with the first electrode and external circuit thus.In addition, the 3rd assembly 3 is comprised of separation layer 31, and it is connected between the first assembly and the second assembly, and has a plurality of holes, wherein each hole correspondence is arranged between both mutual opposed pixel cells of first, second metal conducting layer, and its shape matches with size and pixel cell.In following case study on implementation, according to above technique, prepared 3 * 3 the flexible touch sensing array of paper substrate.
When using the flexible touch sensing of this paper substrate, by pressing the first assembly, the gap between itself and the second assembly electret layer is changed, in this crooked process with recovering, electric capacity also can be along with changing, and cause electronics externally in circuit, to vibrate, form alternating current detection signal and exported.Testing experiment shows, when a certain pixel cell of the flexible touch sensing array of touch-control paper substrate, the signal of unit output can have larger signal to noise ratio (S/N ratio).In addition,, when the flexible touch sensing array of this paper substrate is connected with LCDs, this sensor array of touch-control can drive this LCDs gently, shows corresponding data.This proves that it not only can obtain higher output power and sensitivity, and is convenient to carry out integrated with other electron devices.Because this flexibility touch sensing device is based on paper substrate, can fold bending, be convenient to processing, with low cost, pollution-free, sensing sensitivity good stability, is therefore particularly useful for flexible electronic and learns research field, also can be widely used in daily life.
To further explain according to the basic functional principle of the flexible touch sensing array of paper substrate of the present utility model below.
Do not considering under edge effect, the mechanism explain of the flexible touch sensing array of the utility model paper substrate can be equivalent to the mechanism explain of parallel flat electric capacity.According to Maxwell equation group correlation formula, derive, the open-circuit voltage of upper and lower metal conducting layer has:
Wherein, U
bE, U
tEbe respectively the electromotive force of first, second metal conducting layer; σ
1, σ
2with σ be respectively the surperficial surface density of first, second metal conducting layer and electret layer; d
1and d
2respectively the thickness of electret layer and the distance in described gap; ε
0for permittivity of vacuum, ε
rprelative dielectric constant for electret layer.
Wherein according to charge conservation, have:
-σ=σ
1+ σ
2(formula 2)
According to above-mentioned formula and inference result, can find out, when the 3rd assembly clearance of the first assembly and the second inter-module changes, variation due to upper and lower metal conducting layer electromotive force, electrons is vibration back and forth in the external circuit at electrode two ends, and then formation alternating voltage current detection signal is exported.Correspondingly, in the utility model, utilize above-mentioned principle to change functional module and the structure of the flexible touch sensing array of paper substrate, can obtain thus the compared with prior art more reliable and more stable flexible touch sensing device of performance.
In a preferred embodiment, paper substrate insulation course 11 and 21 material can be selected from kraft, plotting paper, the good paper of the pliability such as cover paper or art paper or transparency paper, the material of electret layer 23 can be selected from teflon, tygon, polypropylene, polyvinylidene fluoride, poly-ethylene-propylene copolymers, polychlorotrifluoroethylene, ethylene tetrafluoroethylene copolymer, vinylidene trifluoro-ethylene copolymer, polyimide, polyethylene terephthalate, a kind of or its combination in the materials such as dimethyl silicone polymer, first and second metal conducting layer 12 and 22 can be by gold, silver, copper, a kind of making in the materials such as aluminium or its oxide.
In addition, in another preferred embodiment, in order further to increase the whole surface area of electret layer and to improve its absorption and the ability that keeps electric charge, surface working is formed with many micro-nano rank concaveconvex structures thereon, such as average-size is that tens nanometers are to the concaveconvex structure between several microns.Test shows to make the flexible touch sensing array apparatus of this paper substrate to have high performance output, meets the demand of most of practice occasions.In addition, further paper substrate insulation course, electret layer are set to transparent configuration, to improve the convenience of operation.
The technological process for the manufacture of the flexible touch sensing device of paper substrate according to the utility model will be specifically described below.
First, the paper cutting that is selected from the materials such as kraft, plotting paper, cover paper or art paper is slit into the schistose texture of required size, and pass through magnetron sputtering, the mode of hot evaporation or inkjet printing deposits in its surface and forms first metal conducting layer with pixel cell, and the pixel cell of this metal conducting layer is drawn separately external electrode; Then, the paper cutting that is selected from equally the materials such as kraft, plotting paper, cover paper or art paper is slit into the schistose texture (or the sheet paper substrate that directly utilizes previous step to obtain) of required size, and forming second metal conducting layer with pixel cell by magnetron sputtering, hot evaporation, inkjet printing or additive method deposition, the pixel cell of this metal conducting layer is drawn separately external electrode; Then by spin coating, spraying, bonding or additive method, by the suspending liquid of electret or thin film deposition or be bonded in the second metal conducting layer surface of conductive paper.Electret is optional from teflon, tygon, polypropylene, polyvinylidene fluoride, poly-ethylene-propylene copolymers, polychlorotrifluoroethylene, ethylene tetrafluoroethylene copolymer, vinylidene trifluoro-ethylene copolymer, polyimide, polyethylene terephthalate, a kind of or its combination in the materials such as dimethyl silicone polymer; Then to the processing that polarizes of electret layer.The 3rd assembly is according to the corresponding cavity of size preparation of the metal pixel unit of the first assembly and the second assembly.Finally, the first and second assemblies are assembled to processing by the 3rd assembly.Completed thus the manufacture process of the flexible touch sensing array of paper substrate.
According to above technological process, make after touch sensing array apparatus, will carry out a series of performance test to it below.
Fig. 2 is for showing according to preferred embodiment of the utility model flexible touch sensing array apparatus of prepared 3 * 3 paper substrates Voltage-output strength signal when hand touches this device.For example, during to a certain pixel cell touch-control of the flexible touch sensing array apparatus of paper substrate, this element output signal is stronger, presses other unit simultaneously, can find that their undesired signal is very weak.Visible this sensor array has good signal to noise ratio (S/N ratio).
Fig. 3 is for showing the curve map to the capacitor charging of 2.2 μ F according to the flexible touch sensing array apparatus of prepared 3 * 3 paper substrates of the utility model above-described embodiment; Show that the flexible touch sensing array of paper substrate of utility model is except can, directly for electron device provides energy, charging to energy storage device.Illustration in figure is the local enlarged diagram of this charging curve.
As can be seen here, the flexible touch sensing of paper substrate that the utility model relates to, it is charged based on electret, and frictional electrification and capacitance variations generating effect are carried out work, and with low cost, simple in structure, easy to use and large-scale production manufacture.Compare with existing other miniature collection of energy method, the flexible touch sensing device of paper substrate in the utility model has the feature of performance output, simultaneously can also be as rotor machine.Its one-piece construction adopts flexible material, collapsible bending, and easily processing, good stability, long service life, is also conducive to other flexible electronic products integrated in addition.The flexible touch sensing array apparatus of this paper substrate has shown its good application prospect, and is possessing equally huge application potential aspect the sensitive elements such as power, pressure transducer.
Those skilled in the art will readily understand; the foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (3)
1. the flexible touch sensing of paper substrate, is characterized in that, the flexible touch sensing of this paper substrate comprises:
The first assembly, described the first assembly consists of jointly paper substrate insulation course and the first metal conducting layer, wherein the first metal conducting layer comprises and is a plurality of pixel cells that planar array formula is arranged, these pixel cells are deposited on the whole lower surface of paper substrate insulation course, and from the side of each pixel cell separately extraction electrode with integrated formation the first electrode;
The second assembly, described the second assembly consists of jointly paper substrate insulation course, the second metal conducting layer and electret layer, wherein the second metal conducting layer comprises equally and is a plurality of pixel cells that planar array formula is arranged, these pixel cells are deposited on the whole upper surface of paper substrate insulation course and mutually opposed with a plurality of pixel cells of the first metal conducting layer, and from the side of each pixel cell separately extraction electrode with integrated formation the second electrode; Described electret layer is formed on the whole upper surface of the second metal conducting layer;
The 3rd assembly, described the 3rd assembly is connected between the first assembly and the second assembly, and be rendered as the separation layer form that possesses a plurality of holes, wherein each hole correspondence is arranged between both mutual opposed pixel cells of first, second metal conducting layer, and its shape matches with size and pixel cell.
2. the flexible touch sensing of paper substrate as claimed in claim 1, is characterized in that, on described electret layer and the opposed surface of the first metal conducting layer, is processed with the concaveconvex structure of a plurality of micro-nano magnitudes.
3. the flexible touch sensing of paper substrate as claimed in claim 2, is characterized in that, described paper substrate insulation course and electret layer are transparent configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420203849.4U CN203799351U (en) | 2014-04-24 | 2014-04-24 | Paper-base flexible touch sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420203849.4U CN203799351U (en) | 2014-04-24 | 2014-04-24 | Paper-base flexible touch sensor |
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| Publication Number | Publication Date |
|---|---|
| CN203799351U true CN203799351U (en) | 2014-08-27 |
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ID=51381551
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420203849.4U Expired - Lifetime CN203799351U (en) | 2014-04-24 | 2014-04-24 | Paper-base flexible touch sensor |
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| Country | Link |
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| CN (1) | CN203799351U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105071684A (en) * | 2015-07-31 | 2015-11-18 | 北京微能高芯科技有限公司 | Miniaturized electrostatic generator |
| CN110310470A (en) * | 2019-06-24 | 2019-10-08 | 北京科技大学 | It is a kind of to slide the netted integrated control device of electrostatic ripple and preparation method |
-
2014
- 2014-04-24 CN CN201420203849.4U patent/CN203799351U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105071684A (en) * | 2015-07-31 | 2015-11-18 | 北京微能高芯科技有限公司 | Miniaturized electrostatic generator |
| CN105071684B (en) * | 2015-07-31 | 2017-10-03 | 北京微能高芯科技有限公司 | A kind of miniature electrostatic generator |
| CN110310470A (en) * | 2019-06-24 | 2019-10-08 | 北京科技大学 | It is a kind of to slide the netted integrated control device of electrostatic ripple and preparation method |
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