CN105607790A - Resistance-capacitance hybrid pressure sensor and use method thereof - Google Patents
Resistance-capacitance hybrid pressure sensor and use method thereof Download PDFInfo
- Publication number
- CN105607790A CN105607790A CN201610074781.8A CN201610074781A CN105607790A CN 105607790 A CN105607790 A CN 105607790A CN 201610074781 A CN201610074781 A CN 201610074781A CN 105607790 A CN105607790 A CN 105607790A
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- pressure
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- resistance
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/045—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
Abstract
The invention discloses a resistance-capacitance hybrid pressure sensor and a use method thereof. The resistance-capacitance hybrid pressure sensor comprises a piezoresistive material layer, a conductive electrode layer and substrate layers, wherein the piezoresistive material layer is made of a resistance pressure sensitive material; the conductive electrode layer is divided into an upper layer and a lower layer which are respectively located on the upper surface and lower surface of the piezoresistive material layer; the substrate layers are respectively arranged on the upper surface and lower surface of the conductive electrode layer. The pressure sensor is prepared into an array applied to electronic equipment, such as, a touch screen, and the like and is used for respectively measuring capacitance and resistance under different application environments, so that the pressure sensor has the advantages of high sensitivity, strong durability, mature technique, and the like of a capacitive touch screen as well as the advantages of capability of detecting pressure, strong water resistance, and the like, of a resistance-type touch screen. The resistance-capacitance hybrid pressure sensor has a sensor structure with two functions, is simple in structure and principle, is capable of utilizing the technique and equipment of the present capacitive touch screen, is low in cost and is fit for wide popularization.
Description
Technical field
The present invention relates to a kind of pressure type sensor, relate in particular to the hybrid pressure sensor of a kind of resistance capacitance and makeUse method.
Background technology
In recent years, projected capacitive touch technology had been widely used among various consumption electronic products, itsSupport that multi-point touch, highly sensitive, durability are strong, technology maturation. But capacitive touch control techniques is endured to the fullest extent anti-alwaysThe puzzlement that water-based is poor. Meanwhile, can detection pressure, as a kind of new additional function, also become in various brands highThe indispensability of end smart mobile phone (as iPhone6s). Touch function and pressure detecting function be independently module of conduct respectively,Be integrated in terminal device, complex structure, with high costs.
Therefore, those skilled in the art is devoted to develop the hybrid pressure sensor of a kind of resistance capacitance and user thereofMethod, simple in structure, easy to use, with low cost.
Summary of the invention
In view of the defect of prior art, the invention provides the hybrid pressure sensor of a kind of resistance capacitance, comprise pressure resistance typeMaterial layer, conductive electrode layer and substrate layer, described pressure resistance type material layer is made up of pressure-sensitive material resistance; InstituteState conductive electrode layer and be divided into conductive electrode layer and lower conductive electrode layer, lay respectively at the upper and lower of described pressure resistance type material layerSurface; Described substrate layer is positioned at the upper surface of conductive electrode layer and the lower surface of lower conductive electrode layer.
Further, described pressure resistance type material layer is the elasticity non-conducting material that conductive particle is filled.
Further, described pressure resistance type material layer is elastic conducting material.
Further, described conductive electrode layer is transparent conductive metal oxide, as ITO (indium tin oxide) etc.
Further, described conductive electrode layer is electrically conducting transparent high-molecular organic material, as PEDOT (polyethylene dioxyThiophene) etc.
Further, described conductive electrode layer is inorganic material.
Further, described inorganic material is nano silver wire, Graphene or CNT.
Further, described substrate layer is PET flexible material or glass.
Further, the pattern of described conductive electrode layer is strip or rhombus; On described conductive electrode layer and described underThe described pattern of conductive electrode layer is mutually vertical.
The present invention also provides the using method of the hybrid pressure sensor of a kind of resistance capacitance, comprises the following steps:
(1) provide above-mentioned any described hybrid pressure sensor of resistance capacitance;
(2), under without detection pressure and dry water-less environment, measure the upper and lower two-layer conduction electricity of described pressure sensorElectric capacity between the each crosspoint of utmost point layer, obtains the capacitor array with position change, calculates touch point position.
(3), under needs detection pressure or water environment, measure the upper and lower two-layer conductive electrode of described pressure sensorResistance between the each crosspoint of layer, obtains the electric resistance array with position change, according to the pressure drag characteristic of pressure resistance type material layerObtain the pressure array changing with position, obtain touch point position and pressure size by front and back pressure array comparing calculation.
The pressure type sensor resistance-type that the present invention proposes and two kinds of functions of condenser type share same sensor construction, structureSimple with principle, and can utilize existing capacitive touch screen technology and equipment, pressure sensor is made to array for touchingTouch in the electronic equipments such as screen, can make that it not only possesses that capacitive touch screen is highly sensitive, durability is strong, technology maturation etc.Advantage, and possess the advantages such as the detectable pressure of resistive touch screen, water-resistance are strong, with low cost, be applicable to extensivePromote.
Below with reference to accompanying drawing, the technique effect of design of the present invention, concrete structure and generation is described further, withUnderstand fully object of the present invention, feature and effect.
Brief description of the drawings
Fig. 1 is pressure type sensor structure and the array of figure of a preferred embodiment of the present invention;
Fig. 2 is the pressure type sensor structure partial enlarged drawing of a preferred embodiment of the present invention.
Detailed description of the invention
Fig. 1 is pressure type sensor structure and the array of figure of a preferred embodiment of the present invention, can from figureFind out, the present invention propose the hybrid array of pressure sensors 1 of a kind of resistance capacitance, comprise pressure resistance type material layer 10,Conductive electrode layer 110 and 111, substrate layer. Pressure resistance type material layer 10 is resistance, pressure-sensitive material to be made up of,Conductive electrode layer 110 and 111 is divided into two-layer up and down, lays respectively at the upper and lower surface of pressure resistance type material layer 10, in conductionElectrode layer 110 upper surfaces and 111 lower surface have respectively one deck substrate layer (not shown), conductive electrode layer 110With 111 in conductive electrode number and pattern determine as required. Conductive electrode layer 110 and 111 can be same materialMaterial, can be also respectively different materials, can be flexible material, can be also hard material. Two layers of substrate layer canBeing commaterial, can be also respectively different materials, and upper strata substrate layer should be flexible material, and underlying substrate layer canBeing flexible material, can be also hard material. In the present embodiment, the material of pressure resistance type material layer 10 is elected conductive particle asThe elasticity non-conducting material of filling, the material of conductive electrode layer 110 and 111 is all elected transparent metal oxide ITO as,The material of upper strata substrate layer is elected PET as, and the material of underlying substrate layer is elected glass as, conductive electrode layer 110 and 111 figureCase is mutual vertical strip shaped electric poles up and down.
As shown in Figure 2, by pressure type sensor array 1 for electronic equipments such as touch-screens, without detection pressure andUnder dry water-less environment, the touch controller of touch-screen is adjusted into the upper and lower two-layer conductive electrode 110 and 111 of measurement and respectively hands overElectric capacity between crunode, obtains the capacitor array with position change, realizes the touch merit of existing projected capacitive touch screenEnergy. Under needs detection pressure or water environment, the touch controller of touch-screen is adjusted into measures upper and lower two-layer conductionResistance between electrode 110 and 111 each crosspoints, obtains the electric resistance array with position change, according to pressure resistance type materialThe pressure drag characteristic of layer 10 can obtain impressed pressure 12 arrays that change with position, by front and back impressed pressure 12 arrays pairRatio, thus touch location and impressed pressure 12 sizes obtained. Therefore, this pressure sensor is made to array for touchingIn the electronic equipments such as screen, can make that it not only possesses that capacitive touch screen is highly sensitive, durability is strong, technology maturation etc. is excellentPoint, and possess the advantages such as the detectable pressure of resistive touch screen, water-resistance is strong.
It should be appreciated by those skilled in the art that the present invention is not limited only to the setting of this preferred specific embodiment, separatelyIn outer preferred embodiments, the material of pressure resistance type material layer 10 can be elected elastic conducting material as, conductive electrode layer 110Can elect other transparent conductive metal oxides or the organic high score of electrically conducting transparent except ITO as with 111 materialSub-material, as PEDOT (polyethylene dioxythiophene) etc., can also be inorganic material, as metal grill, Yin NaRice noodles, Graphene and CNT etc., the pattern of conductive electrode layer 110 and 111 can elect as rhombus electrode etc. otherElectrode pattern, the material of upper strata substrate layer can be elected other flexible materials except PET, the material of underlying substrate layer asMaterial can be elected the flexible materials such as the PET except glass as.
The pressure type sensor resistance-type that the present invention proposes and two kinds of functions of condenser type share same sensor construction, structureSimple with principle, and can utilize existing capacitive touch screen technology and equipment, with low cost, be applicable to large-scale promotion.
More than describe preferred embodiment of the present invention in detail. Should be appreciated that the ordinary skill of this area is without woundThe property made work just can design according to the present invention be made many modifications and variations. Therefore, all technology in the artPersonnel can obtain by logical analysis, reasoning, or a limited experiment under this invention's idea on the basis of existing technologyThe technical scheme arriving, all should be in by the determined protection domain of claims.
Claims (10)
1. the hybrid pressure sensor of resistance capacitance, is characterized in that, comprises pressure resistance type material layer, conductive electrodeLayer and substrate layer, described pressure resistance type material layer is made up of pressure-sensitive material resistance; Described conductive electrode layer is divided intoUpper conductive electrode layer and lower conductive electrode layer, lay respectively at the upper and lower surface of described pressure resistance type material layer; Described substrate layerBe positioned at the upper surface of conductive electrode layer and the lower surface of lower conductive electrode layer.
2. as claimed in claim 1, it is characterized in that, described pressure resistance type material layer is the elasticity that conductive particle is filledNon-conducting material.
3. as claimed in claim 1, it is characterized in that, described pressure resistance type material layer is elastic conducting material.
4. as claimed in claim 1, it is characterized in that, described conductive electrode layer is transparent conductive metal oxide.
5. as claimed in claim 1, it is characterized in that, described conductive electrode layer is electrically conducting transparent organic polymer materialMaterial.
6. as claimed in claim 1, it is characterized in that, described conductive electrode layer is inorganic material.
7. as claimed in claim 6, it is characterized in that, described inorganic material is nano silver wire, Graphene or carbonNanotube.
8. as claimed in claim 1, it is characterized in that, described substrate layer is PET flexible material or glass.
9. as claimed in claim 1, it is characterized in that, the pattern of described conductive electrode layer is strip or rhombus; ?The described pattern of described upper conductive electrode layer and described lower conductive electrode layer is mutually vertical.
10. a using method for the hybrid pressure sensor of resistance capacitance, is characterized in that, comprises the following steps:
(1) provide the hybrid pressure sensor of resistance capacitance as described in any in claim 1-9;
(2), under without detection pressure and dry water-less environment, measure the upper and lower two-layer conduction electricity of described pressure sensorElectric capacity between the each crosspoint of utmost point layer, obtains the capacitor array with position change, calculates touch point position;
(3), under needs detection pressure or water environment, measure the upper and lower two-layer conductive electrode of described pressure sensorResistance between the each crosspoint of layer, obtains the electric resistance array with position change, according to the pressure drag characteristic of pressure resistance type material layerObtain the pressure array changing with position, obtain touch point position and pressure size by front and back pressure array comparing calculation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610074781.8A CN105607790B (en) | 2016-02-02 | 2016-02-02 | A kind of hybrid pressure sensor of resistance capacitance and its application method |
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| CN201610074781.8A CN105607790B (en) | 2016-02-02 | 2016-02-02 | A kind of hybrid pressure sensor of resistance capacitance and its application method |
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| CN105607790A true CN105607790A (en) | 2016-05-25 |
| CN105607790B CN105607790B (en) | 2018-10-19 |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106289594A (en) * | 2016-11-02 | 2017-01-04 | 吉林大学 | Three-dimension deformation-quantity and the sensor array of three-dimensional pressure high-precise synchronization measurement can be realized |
| CN106441649A (en) * | 2016-08-25 | 2017-02-22 | 中南大学 | Pressure locating and measuring method used for connected piezoresistive sensor array |
| CN106648226A (en) * | 2016-12-08 | 2017-05-10 | 上海交通大学 | Transparent pressure sensor and manufacturing method of piezoresistive material thereof |
| CN106940603A (en) * | 2017-03-15 | 2017-07-11 | 上海大学 | A kind of touch sensing and preparation method |
| WO2018039939A1 (en) * | 2016-08-30 | 2018-03-08 | 华为技术有限公司 | Capacitive pressure sensor and fabrication method thereof |
| US10254894B2 (en) | 2015-12-23 | 2019-04-09 | Cambridge Touch Technologies Ltd. | Pressure-sensitive touch panel |
| US10282046B2 (en) | 2015-12-23 | 2019-05-07 | Cambridge Touch Technologies Ltd. | Pressure-sensitive touch panel |
| US10323996B2 (en) | 2017-01-23 | 2019-06-18 | Winbond Electronics Corp. | Pressure sensor and manufacturing method thereof |
| WO2019214418A1 (en) * | 2018-05-10 | 2019-11-14 | 京东方科技集团股份有限公司 | Three-dimensional force recognition sensor, driving method therefor and display device |
| CN111625109A (en) * | 2019-02-27 | 2020-09-04 | 昆山工研院新型平板显示技术中心有限公司 | Resistance type sensor and manufacturing method thereof, display screen and touch screen |
| CN111671393A (en) * | 2019-03-11 | 2020-09-18 | 郑庆生 | High-precision sensor and application thereof in force-measuring insoles |
| US10817116B2 (en) | 2017-08-08 | 2020-10-27 | Cambridge Touch Technologies Ltd. | Device for processing signals from a pressure-sensing touch panel |
| US11093088B2 (en) | 2017-08-08 | 2021-08-17 | Cambridge Touch Technologies Ltd. | Device for processing signals from a pressure-sensing touch panel |
| US11435844B2 (en) | 2019-08-29 | 2022-09-06 | Asustek Computer Inc. | Electronic device and force sensing touch assembly thereof |
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| WO2002035461A1 (en) * | 2000-10-27 | 2002-05-02 | Elo Touchsystems, Inc. | Dual sensor touchscreen utilizing projective-capacitive and force touch sensors |
| CN102640093A (en) * | 2009-08-12 | 2012-08-15 | 摩托罗拉移动公司 | Printed force sensor within a touch screen |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10282046B2 (en) | 2015-12-23 | 2019-05-07 | Cambridge Touch Technologies Ltd. | Pressure-sensitive touch panel |
| US10254894B2 (en) | 2015-12-23 | 2019-04-09 | Cambridge Touch Technologies Ltd. | Pressure-sensitive touch panel |
| CN106441649A (en) * | 2016-08-25 | 2017-02-22 | 中南大学 | Pressure locating and measuring method used for connected piezoresistive sensor array |
| WO2018039939A1 (en) * | 2016-08-30 | 2018-03-08 | 华为技术有限公司 | Capacitive pressure sensor and fabrication method thereof |
| CN108291845A (en) * | 2016-08-30 | 2018-07-17 | 华为技术有限公司 | Capacitance pressure transducer, and preparation method thereof |
| CN106289594A (en) * | 2016-11-02 | 2017-01-04 | 吉林大学 | Three-dimension deformation-quantity and the sensor array of three-dimensional pressure high-precise synchronization measurement can be realized |
| CN106648226A (en) * | 2016-12-08 | 2017-05-10 | 上海交通大学 | Transparent pressure sensor and manufacturing method of piezoresistive material thereof |
| US10323996B2 (en) | 2017-01-23 | 2019-06-18 | Winbond Electronics Corp. | Pressure sensor and manufacturing method thereof |
| CN106940603A (en) * | 2017-03-15 | 2017-07-11 | 上海大学 | A kind of touch sensing and preparation method |
| CN106940603B (en) * | 2017-03-15 | 2019-08-13 | 上海大学 | A kind of touch sensing and preparation method |
| US10817116B2 (en) | 2017-08-08 | 2020-10-27 | Cambridge Touch Technologies Ltd. | Device for processing signals from a pressure-sensing touch panel |
| US11093088B2 (en) | 2017-08-08 | 2021-08-17 | Cambridge Touch Technologies Ltd. | Device for processing signals from a pressure-sensing touch panel |
| WO2019214418A1 (en) * | 2018-05-10 | 2019-11-14 | 京东方科技集团股份有限公司 | Three-dimensional force recognition sensor, driving method therefor and display device |
| US11010010B2 (en) | 2018-05-10 | 2021-05-18 | Boe Technology Group Co., Ltd. | Three-dimensional force recognition sensor, driving method therefor and display device |
| CN111625109A (en) * | 2019-02-27 | 2020-09-04 | 昆山工研院新型平板显示技术中心有限公司 | Resistance type sensor and manufacturing method thereof, display screen and touch screen |
| CN111625109B (en) * | 2019-02-27 | 2022-07-12 | 昆山工研院新型平板显示技术中心有限公司 | Resistance type sensor and manufacturing method thereof, display screen and touch screen |
| CN111671393A (en) * | 2019-03-11 | 2020-09-18 | 郑庆生 | High-precision sensor and application thereof in force-measuring insoles |
| US11435844B2 (en) | 2019-08-29 | 2022-09-06 | Asustek Computer Inc. | Electronic device and force sensing touch assembly thereof |
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| CN105607790B (en) | 2018-10-19 |
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