CN110045873A - The compound pressure sensitivity touch screen of capacitance resistance - Google Patents
The compound pressure sensitivity touch screen of capacitance resistance Download PDFInfo
- Publication number
- CN110045873A CN110045873A CN201910342723.2A CN201910342723A CN110045873A CN 110045873 A CN110045873 A CN 110045873A CN 201910342723 A CN201910342723 A CN 201910342723A CN 110045873 A CN110045873 A CN 110045873A
- Authority
- CN
- China
- Prior art keywords
- resistance
- capacitance
- capacitance resistance
- electrode plate
- touch screen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
Abstract
The compound pressure sensitivity touch screen of capacitance resistance of the present invention, belongs to pressure sensitivity touch screen technology field;Provide that a kind of structure is simple, the compound pressure sensitivity touch screen of capacitance resistance of high sensitivity;A kind of technical solution are as follows: compound pressure sensitivity touch screen of capacitance resistance, it is sequentially connected in series the capacitance resistance electrode plate row to be formed in the horizontal direction including n capacitance resistance electrode plate, m capacitance resistance electrode plate is vertically sequentially connected in series the capacitance resistance electrode panel to be formed, and m capacitance resistance electrode plate row and n capacitance resistance electrode panel arrange to form capacitance resistance electrode plate array;Wherein, capacitance resistance electrode plate includes capacitive electrode plates and resistance wire, resistance wire is etched in capacitive electrode plates deviously, each capacitor motor plate internal resistance wire resistance value is equal, the pattern that resistance wire is formed is consistent, when capacitance resistance electrode plate is pressurized, deformation occurs for resistance wire, and the resistance value of resistance wire changes.
Description
Technical field
The compound pressure sensitivity touch screen of capacitance resistance of the present invention, belongs to pressure sensitivity touch screen technology field.
Background technique
Since capacitance plate is even better on user experience, it is increasingly becoming the mainstream in touch screen market, is grasped on two-dimensional surface
The capacitance touch screen of work can not meet the demand that people use electronic product.More and more cell phone manufacturers are pressure sensitivity
On Technology application to mobile phone screen, by generating new function and experience to the pressing of mobile phone screen.But present pressure sensitivity screen
Technology is still in infancy, and is mainly increased stressor layer induction structure design in screen mould group, is caused electricity by pressure
The change of appearance such as detects the dynamics of finger pressing by infrared ray through the intensity of finger.Existing some pressure sensitivity technology works
Skill is complicated, and production is difficult, at high cost, and precision is relatively low, influences user experience.
Summary of the invention
The compound pressure sensitivity touch screen of capacitance resistance of the present invention, overcomes the shortcomings of the prior art, provides a kind of structure
Simply, the compound pressure sensitivity touch screen of the capacitance resistance of high sensitivity.
In order to solve the above-mentioned technical problem, a kind of the technical solution adopted by the present invention are as follows: compound pressure sensitivity touch of capacitance resistance
Screen, the capacitance resistance electrode plate row to be formed, m capacitance resistance are sequentially connected in series including n capacitance resistance electrode plate in the horizontal direction
Electrode plate is vertically sequentially connected in series the capacitance resistance electrode panel to be formed, m capacitance resistance electrode plate row and n capacitor electricity
Resistance electrode panel arranges to form capacitance resistance electrode plate array;
Wherein, capacitance resistance electrode plate includes capacitive electrode plates and resistance wire, and resistance wire is etched in capacitive electrode plates deviously,
Each capacitor motor plate internal resistance wire resistance value is equal, and the pattern that resistance wire is formed is consistent, when capacitance resistance electrode plate is pressurized, electricity
Hindering silk, deformation occurs, and the resistance value of resistance wire changes.
Further, the capacitance resistance electrode plate is the diamond shape electrode of 6mm*6mm.
It further, further include 3 reference resistance electrodes R1, R3, R4,3 reference resistance electrodes are sequentially distributed in the electricity
Hold 3 different angles of the compound pressure sensitivity touch screen of capacitance resistance where resistance electrode plate array or the edge on 3 different sides
On.
Further, the capacitance resistance electrode plate and the reference resistance electrode are etched by ITO, electrocondution slurry printing,
Conductive fiber weaving manner is constituted.
It further, further include capacitance measurement circuit, resistance measuring circuit and capacitance resistance measurement switching circuit, wherein electricity
Capacitance measuring circuits include signal transmitter unit and signal receiving unit, and capacitance resistance measurement switching circuit includes that the synchronous disconnecting link of row is opened
Chopper switch synchronous with column is closed, resistance measuring circuit includes multiway analog switch, bridge circuit and signal conditioning circuit, signal hair
It penetrates unit chopper switch synchronous with row to be connected, the synchronous chopper switch of row is connected with the side of m row capacitance resistance electrode plate row, m row
The other side of capacitance resistance electrode plate row is connected with multiway analog switch, and the side of n column capacitance resistance electrode panel is synchronous with column
Chopper switch be connected, the other side of n column capacitance resistance electrode panel is connected with bridge circuit, column synchronization chopper switch respectively with letter
Number receiving unit is connected with multiway analog switch, and multiway analog switch is connected with bridge circuit, the output end and letter of bridge circuit
Number conditioning circuit is connected.
Further, the bridge circuit is made of described 3 reference resistance electrode R1, R3, R4 and measurement resistance R2
Wheatstone bridge, wherein measurement resistance R2 is the selected a certain capacitance resistance electrode plate row of the multiway analog switch timesharing
Or the resistance of column.
Further, the signal transmitter unit gives X(or Y every time) the capacitance resistance electrode plate row in direction (or column) send
The driving pulse of a certain frequency out, the signal receiving unit is successively in Y(or X) capacitance resistance electrode plate is received on direction
The capacitance of row (or column).
The present invention has the advantages that compared with prior art.
For capacitance resistance electrode plate of the invention compared with the electrode plate of traditional capacitance screen, the electrode plate of capacitance plate is usually real
The heart without pattern, capacitance resistance electrode plate has pattern also only to change the initial value of capacitor, does not change capacitance plate positioning
Principle is in function.The principle of curved resistance wire is similar to straingauge, is under pressure of different sizes, the resistance value of resistance wire
Change, that is, have pressure sensitivity, this put it is completely different with electric resistance touch screen, electric resistance touch screen by the resistance touched there is no
Variation, only different touch locations change electric resistance partial pressure ratio.
It is good that the present invention had not only had the characteristics that capacitance plate body-sensing, but also is able to carry out highly sensitive pressure detecting.The present invention is new
Clever unique, structure is simple, and technique is easily achieved.
Detailed description of the invention
Fig. 1 is the pattern of the first capacitance resistance electrode plate provided in an embodiment of the present invention.
Fig. 2 is the pattern of second of capacitance resistance electrode plate provided in an embodiment of the present invention.
Fig. 3 is the schematic diagram of the basic touch electrode plate pair of the capacitance plate of technology before belonging to.
Fig. 4 is the schematic diagram of the basic touch electrode plate pair of capacitance resistance screen provided in an embodiment of the present invention.
Fig. 5 is that capacitance resistance provided in an embodiment of the present invention presses compound sense touch screen schematic diagram.
Fig. 6 is the circuit diagram that capacitance resistance provided in an embodiment of the present invention presses compound sense touch screen.
Specific embodiment
Following further describes the present invention with reference to the drawings.
As shown in Figure 1 and Figure 2, the embodiment of the present invention provides a kind of capacitance resistance electrode plate, it is the Rhombus of 6mm*6mm
Pole.The pattern of resistance wire is etched in electrode, Fig. 1 and Fig. 2 are the pattern effects of different resistance wires, thus it is possible to vary resistance wire it is thick
Carefully, interval, direction will form different patterns, and different patterns, resistance is different, selects suitable pattern, works as touch screen
When being arrived the pressure of several hectograms by several grams, change resistance between 1000 Europe in 100 Europe, the resistance measuring circuit of this range
It is easily achieved.As shown in figure 3, one piece of touch screen is usually by several basic touch electrode plates to forming, the electrode plate of capacitance plate
It is usually solid without pattern.As shown in figure 4, basic touch electrode plate pair provided in an embodiment of the present invention, inside has identical
Resistance wire pattern.
As shown in figure 5, the embodiment of the present invention provides a kind of compound pressure sensitivity touch screen of capacitance resistance, including n capacitance resistance
Electrode plate is sequentially connected in series the capacitance resistance electrode plate row to be formed in the horizontal direction, m capacitance resistance electrode plate vertically according to
The capacitance resistance electrode panel that secondary series connection is formed, m capacitance resistance electrode plate row and n capacitance resistance electrode panel arrange to be formed
Capacitance resistance electrode plate array;
Wherein, capacitance resistance electrode plate includes capacitive electrode plates and resistance wire, and resistance wire is etched in capacitive electrode plates deviously,
Each capacitor motor plate internal resistance wire resistance value is equal, and the pattern that resistance wire is formed is consistent, when capacitance resistance electrode plate is pressurized, electricity
Hindering silk, deformation occurs, and the resistance value of resistance wire changes.
The compound pressure sensitivity touch screen of capacitance resistance further includes 3 reference resistance electrodes R1, R3, R4,3 reference resistance electrodes according to
It is secondary be distributed in capacitance resistance electrode plate array where the compound pressure sensitivity touch screen of capacitance resistance 3 different angles or 3 differences
Side edge on these be not easy the region being touched.This 3 reference resistance electrodes and capacitance resistance electrod-array are located at same
The external environment of sample has temperature compensation function, the interference for effectivelying prevent temperature change to generate circuit.
Capacitance resistance electrode plate and reference resistance electrode are etched by ITO, electrocondution slurry printing, conductive fiber weaving manner
It constitutes.
As shown in fig. 6, the compound pressure sensitivity touch screen of capacitance resistance further includes capacitance measurement circuit, resistance measuring circuit and capacitor
Resistance measurement switching circuit, wherein capacitance measurement circuit includes signal transmitter unit and signal receiving unit, capacitance resistance measurement
Switching circuit includes the synchronous chopper switch of row chopper switch synchronous with column, and resistance measuring circuit includes multiway analog switch, electric bridge
Circuit and signal conditioning circuit, signal transmitter unit chopper switch synchronous with row are connected, the synchronous chopper switch of row and m row capacitor electricity
The side of resistance electrode plate row is connected, and the other side of m row capacitance resistance electrode plate row is connected with multiway analog switch, n column capacitance electricity
The side of resistance electrode panel chopper switch synchronous with column is connected, the other side of n column capacitance resistance electrode panel and bridge circuit phase
Even, it arranges synchronous chopper switch to be connected with signal receiving unit and multiway analog switch respectively, multiway analog switch and bridge circuit
It is connected, the output end of bridge circuit is connected with signal conditioning circuit.There is X in the synchronous chopper switch of row chopper switch synchronous with column
End and the end Y constitute capacitance measurement circuit when the end X is synchronous to be connected at this time;When the end Y is synchronous to be connected, resistance measurement is constituted at this time
Circuit.
In resistance measuring circuit, bridge circuit is by described 3 reference resistance electrode R1, R3, R4 and measurement resistance R2 group
At Wheatstone bridge, wherein measurement resistance R2 be the selected a certain capacitance resistance electrode plate row of multiway analog switch timesharing
Or the resistance of column.Other 3 fixed resistances of 3 reference resistance electrodes as bridge circuit.Signal conditioning circuit will measure electricity
The voltage of resistance R2 is converted to standardized digital signal for reading.When capacitive electrode plates do not press, the output of initial bridge circuit
Voltage is 0.It is of different sizes when forcing when pressing, it changes similar to the resistance of straingauge, on electric resistance array
Different changes equally occur for resistance value, measurement resistance of the resistance of a certain capacitance resistance electrode plate battle array or column as bridge-type, resistance value
Difference, the voltage difference for causing bridge-type to export is different, by measuring the size of voltage difference, perceives the dynamics of pressure sensitivity.
In capacitance measurement circuit, signal transmitter unit gives X(or Y every time) the capacitance resistance electrode plate row in direction (or
Column) driving pulse of a certain frequency is sent out, signal receiving unit is successively in Y(or X) capacitance resistance electrode is received on direction
The capacitance of plate row (or column).Specifically, signal transmitter unit gives X(or Y every time) the capacitor string in direction sends out one
The driving pulse of certain frequency, meanwhile, signal receiving unit is successively in Y(or X) it reads on direction, when there is no touch event
When, there are an initial capacitances on the crosspoint of Xi and YjC 0, the drive pulse signal on Xi is capacitively coupled on Yj by this,
Collected voltage is initial voltage on Yj at this timeV 0, when having finger or other conductive bodies touch this, Xi and Yj
Crosspoint on capacitor becomeC 0+△C, collected voltage is on YjV 0+△V, with this voltage change, by certain
It calculates, that is, can determine the coordinate of touch point.
Capacitance resistance electrode plate provided in an embodiment of the present invention is compared with the electrode plate of traditional capacitance screen, the electrode of capacitance plate
Plate is usually solid without pattern, and capacitance resistance electrode plate has pattern also only to change the initial value of capacitor, does not change electricity
The principle of Rong Ping positioning is in function.The principle of curved resistance wire is similar to straingauge, is under pressure of different sizes, resistance
The resistance value of silk changes, that is, has pressure sensitivity, this point is completely different with electric resistance touch screen, and electric resistance touch screen is by the electricity touched
Resistance is there is no variation, and only different touch locations change electric resistance partial pressure ratio.
Although being particularly shown and describing the present invention, those skilled in the art referring to its exemplary embodiment
It should be understood that in the case where not departing from the spirit and scope of the present invention defined by claim form can be carried out to it
With the various changes in details.
Claims (7)
1. a kind of compound pressure sensitivity touch screen of capacitance resistance, it is characterised in that including n capacitance resistance electrode plate in the horizontal direction according to
The capacitance resistance electrode plate row that secondary series connection is formed, m capacitance resistance electrode plate are vertically sequentially connected in series the capacitor to be formed electricity
Resistance electrode panel, m capacitance resistance electrode plate row and n capacitance resistance electrode panel arrange to form capacitance resistance electrode plate battle array
Column;
Wherein, capacitance resistance electrode plate includes capacitive electrode plates and resistance wire, and resistance wire is etched in capacitive electrode plates deviously,
Each capacitor motor plate internal resistance wire resistance value is equal, and the pattern that resistance wire is formed is consistent, when capacitance resistance electrode plate is pressurized, electricity
Hindering silk, deformation occurs, and the resistance value of resistance wire changes.
2. the compound pressure sensitivity touch screen of capacitance resistance according to claim 1, it is characterised in that: the capacitance resistance electrode plate
For the diamond shape electrode of 6mm*6mm.
3. the compound pressure sensitivity touch screen of capacitance resistance according to claim 1, it is characterised in that: further include 3 reference resistances
Electrode R1, R3, R4,3 reference resistance electrodes are sequentially distributed multiple in the capacitance resistance where the capacitance resistance electrode plate array
On 3 different angles of combined pressure sense touch screen or the edge on 3 different sides.
4. the compound pressure sensitivity touch screen of capacitance resistance according to claim 1 or 3, it is characterised in that: the capacitance resistance electricity
Pole plate and the reference resistance electrode are etched by ITO, and electrocondution slurry printing, conductive fiber weaving manner is constituted.
5. the compound pressure sensitivity touch screen of capacitance resistance according to claim 4, it is characterised in that: further include capacitance measurement electricity
Road, resistance measuring circuit and capacitance resistance measurement switching circuit, wherein capacitance measurement circuit includes signal transmitter unit and signal
Receiving unit, capacitance resistance measurement switching circuit include the synchronous chopper switch of row chopper switch synchronous with column, resistance measuring circuit
Including multiway analog switch, bridge circuit and signal conditioning circuit, signal transmitter unit chopper switch synchronous with row is connected, and row is same
Step chopper switch is connected with the side of m row capacitance resistance electrode plate row, the other side of m row capacitance resistance electrode plate row and multichannel mould
Quasi- switch is connected, and the side of n column capacitance resistance electrode panel chopper switch synchronous with column is connected, n column capacitance resistance electrode panel
The other side be connected with bridge circuit, arrange synchronous chopper switch and be connected respectively with signal receiving unit and multiway analog switch, it is more
Path analoging switch is connected with bridge circuit, and the output end of bridge circuit is connected with signal conditioning circuit.
6. the compound pressure sensitivity touch screen of capacitance resistance according to claim 5, it is characterised in that: the bridge circuit is by institute
It states 3 reference resistance electrode R1, R3, R4 and measures the Wheatstone bridge of resistance R2 composition, wherein measurement resistance R2 is described more
The resistance of the selected a certain capacitance resistance electrode plate row or column of path analoging switch timesharing.
7. the compound pressure sensitivity touch screen of capacitance resistance according to claim 5, it is characterised in that: the signal transmitter unit is every
A secondary capacitance resistance electrode plate row (or column) to the direction X(or Y) sends out the driving pulse an of certain frequency, the signal
Receiving unit is successively in Y(or X) capacitance of capacitance resistance electrode plate row (or column) is received on direction.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910342723.2A CN110045873A (en) | 2019-04-26 | 2019-04-26 | The compound pressure sensitivity touch screen of capacitance resistance |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910342723.2A CN110045873A (en) | 2019-04-26 | 2019-04-26 | The compound pressure sensitivity touch screen of capacitance resistance |
Publications (1)
Publication Number | Publication Date |
---|---|
CN110045873A true CN110045873A (en) | 2019-07-23 |
Family
ID=67279520
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910342723.2A Pending CN110045873A (en) | 2019-04-26 | 2019-04-26 | The compound pressure sensitivity touch screen of capacitance resistance |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN110045873A (en) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101261552A (en) * | 2007-03-09 | 2008-09-10 | 洋华光电股份有限公司 | Combined touch control induction device |
US20120218221A1 (en) * | 2011-02-28 | 2012-08-30 | Hitachi Displays, Ltd. | Touch panel device |
CN105426005A (en) * | 2015-09-30 | 2016-03-23 | 宸鸿科技(厦门)有限公司 | Three-dimensional touch panel |
CN106325578A (en) * | 2015-07-10 | 2017-01-11 | 宸鸿科技(厦门)有限公司 | Pressure sensing touch panel |
US20170371471A1 (en) * | 2016-06-22 | 2017-12-28 | Samsung Display Co., Ltd. | Touch sensor |
CN108037844A (en) * | 2017-11-09 | 2018-05-15 | 厦门天马微电子有限公司 | Touch-control display panel and touch control display apparatus |
CN207557905U (en) * | 2017-12-13 | 2018-06-29 | 南昌欧菲显示科技有限公司 | Integrated touch control component, touching display screen and touch-controlled electronic devices |
-
2019
- 2019-04-26 CN CN201910342723.2A patent/CN110045873A/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101261552A (en) * | 2007-03-09 | 2008-09-10 | 洋华光电股份有限公司 | Combined touch control induction device |
US20120218221A1 (en) * | 2011-02-28 | 2012-08-30 | Hitachi Displays, Ltd. | Touch panel device |
CN106325578A (en) * | 2015-07-10 | 2017-01-11 | 宸鸿科技(厦门)有限公司 | Pressure sensing touch panel |
CN105426005A (en) * | 2015-09-30 | 2016-03-23 | 宸鸿科技(厦门)有限公司 | Three-dimensional touch panel |
US20170371471A1 (en) * | 2016-06-22 | 2017-12-28 | Samsung Display Co., Ltd. | Touch sensor |
CN108037844A (en) * | 2017-11-09 | 2018-05-15 | 厦门天马微电子有限公司 | Touch-control display panel and touch control display apparatus |
CN207557905U (en) * | 2017-12-13 | 2018-06-29 | 南昌欧菲显示科技有限公司 | Integrated touch control component, touching display screen and touch-controlled electronic devices |
Non-Patent Citations (2)
Title |
---|
YOUNG-TAE KIM ET AL.: "Force Sensing Model of Capacitive Hybrid Touch Sensor using Thin-Film Force Sensor and Its Evaluation", 《INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING》 * |
龙小翠 等: "基于触摸按键的手写板设计", 《电子设计工程》 * |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN103279244B (en) | A kind of capacitive touch screen | |
CN101009158B (en) | A capacitance-changing device | |
CN103593099B (en) | Input system and the method using input system detection touch | |
CN104205025B (en) | Mutual capacitance touch screen device and the method being used for creating mutual capacitance touch screen device | |
EP2811380A2 (en) | Capacitive touch screen | |
CN108279814A (en) | Method for detecting, touch-control processing unit and the touch-control system of sender unit | |
CN108362427B (en) | Touch sensor with multifunctional layer, electronic skin and intelligent robot | |
CN103279246B (en) | Capacitive type touch pad | |
CN106775055A (en) | Flexible touch screen and flexible touch display screen | |
CN105117058A (en) | Touch panel, touch display panel and electronic device | |
CN103633984B (en) | A kind of touch key-press chip and its sensitivity correction method and electronic equipment | |
CN206523863U (en) | Piezoresistive transducer, pressure-detecting device, electronic equipment | |
CN106055158A (en) | Touch display panel and driving method thereof | |
CN102081487B (en) | Detection method and device of resistance touch screen | |
CN204883660U (en) | Enhancement mode 3D detection module | |
CN203457140U (en) | A circuit structure using a single IO port to expand a plurality of buttons | |
CN207557906U (en) | Pressure sensitive module, touching display screen and touch-controlled electronic devices | |
CN110045873A (en) | The compound pressure sensitivity touch screen of capacitance resistance | |
CN105677125B (en) | The modification method and display panel of a kind of display panel and its touching signals amount | |
CN204303629U (en) | A kind of inductive type thin film switch | |
CN2870113Y (en) | Capacitance changing apparatus | |
CN109714475A (en) | A kind of piezoresistive transducer realizes the device and method of new function using new fitting | |
CN206132278U (en) | Can realize three -dimensional deflection and three -dimensional pressure high -precision synchronization measuring sensing array | |
CN216623225U (en) | Circular touch device and watch | |
CN203376723U (en) | Capacitive touch screen |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190723 |
|
RJ01 | Rejection of invention patent application after publication |