CN107656660A - A kind of capacitance sensing mechanism - Google Patents
A kind of capacitance sensing mechanism Download PDFInfo
- Publication number
- CN107656660A CN107656660A CN201710725111.2A CN201710725111A CN107656660A CN 107656660 A CN107656660 A CN 107656660A CN 201710725111 A CN201710725111 A CN 201710725111A CN 107656660 A CN107656660 A CN 107656660A
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- China
- Prior art keywords
- electrode
- capacitance sensing
- sensing mechanism
- substrate
- press
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- 239000000758 substrate Substances 0.000 claims abstract description 25
- 230000004888 barrier function Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 6
- 239000004020 conductor Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000002618 waking effect Effects 0.000 description 1
Classifications
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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
- G06F3/044—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
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04102—Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper
-
- 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
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
Abstract
A kind of capacitance sensing mechanism, it includes substrate, the capacitance sensing mechanism also includes first electrode and second electrode, the first electrode is arranged on substrate, the relatively described first electrode of the second electrode is set, it can be moved relative to the first electrode so that the distance between the second electrode and the first electrode change.The capacitance sensing mechanism can realize two functions simultaneously by capacitance variations, it is possible to reduce the setting of electronic equipment touch key-press.
Description
Technical field
The present invention relates to a kind of capacitance sensing mechanism, especially a kind of capacitance sensing mechanism applied to button.
Background technology
With the development of science and technology, touch-screen gradually instead of button applied among various electronic equipments, as mobile phone,
Notebook computer, digital camera etc..The user of touch-screen user operation, improve the operating experience of user.It is existing
Electronic product not only have touch-screen, the also button with difference in functionality, including physical button and touch key-press, opened for power supply
Pass, volume key, return to the operation such as desktop.The function of existing touch key-press is single, is only used for a kind of operation.
Therefore, it is necessary to provide a kind of capacitance sensing mechanism, a variety of operations can be realized, improve Consumer's Experience.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of capacitance sensing mechanism, and the capacitance sensing mechanism can be complete
Into a variety of operations.
To achieve these goals, the present invention provides a kind of capacitance sensing mechanism, and it includes substrate, the capacitance sensing machine
Structure also includes first electrode and second electrode, and the first electrode is arranged on substrate, the second electrode relatively described first
Electrode is set, and can be moved relative to the first electrode so that the distance between the second electrode and the first electrode occur
Change.
Further, the substrate includes mainboard and flexible part, and the flexible part is bent to the mainboard, relative to described
Mainboard elasticity activity, the first electrode are located at the mainboard of the substrate, and the second electrode is located at the flexible part of the substrate.
Further, a cover plate is oppositely arranged with the substrate, and the first electrode is located at the substrate, second electricity
Pole is arranged on the cover plate, and relatively described first electrode moves up and down.
Further, described cover plate one end is fixed, remainder elasticity activity.
Further, elastic mechanism or compliant mechanism are provided between the second electrode and the first electrode.
Further, compliant mechanism is provided between the second electrode and the first electrode, the second electrode is located at
On the compliant mechanism.
Further, the first electrode and the second electrode include conductor layer and insulating barrier, and the insulating barrier covers
Cover the conductor layer.
Compared with prior art, touch key-press of the invention can realize the work(for waking up screen by variable capacitance mechanism
Can, and can prevent from operating caused by false touch.
Brief description of the drawings
Fig. 1 is the schematic diagram of one embodiment of the invention.
Fig. 2 is the schematic diagram of first electrode structure.
Fig. 3 is the schematic diagram of another embodiment of the present invention.
Fig. 4 is the schematic diagram of another embodiment of the present invention.
Fig. 5 is the schematic diagram of another touch key-press comprising compliant mechanism of the present invention.
Fig. 6 is a kind of flow chart of detection method of capacitance sensing mechanism of the present invention.
Fig. 7 is the flow chart of capacitance sensing mechanism another kind detection method of the present invention.
Fig. 8 is the flow chart of another detection method of capacitance sensing mechanism of the present invention.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples.
As Figure 1-5, the capacitance sensing mechanism 1 includes substrate 10, first electrode 11 and second electrode 12, and described
One electrode 11 is arranged on substrate 10, and the relatively described first electrode 11 of the second electrode 12 is set, and the second electrode 12 can
Moved relative to the first electrode 11 so that the distance between described second electrode 12 and the first electrode 11 change.
The first electrode 11 and the second electrode 12 form two pole plates of capacitance structure, the first electrode 11 and described second
It is dielectric between electrode 12.The first electrode is connected to control chip, the electric capacity of capacitance sensing mechanism of Sohu of detection Soviet Union
Change.
The capacitance sensing mechanism is further illustrated with reference to different preferred embodiments.
As shown in Figure 1-2, the substrate 10 includes mainboard 100 and flexible part 101, and the flexible part 101 is to the mainboard
100 bendings, relative to the elasticity of mainboard 100 activity.The capacitance sensing mechanism 3 includes the on the mainboard 100
One electrode 11 and the second electrode 12 positioned at the flexible part 101, the first electrode 11 the position of the mainboard 100 with
The second electrode 12 on the flexible part 101 is corresponding.The first electrode 11 and the second electrode 12 are wrapped
Conductive layer 110 and insulating barrier 111 are included, the conductive layer 110 is layed on the substrate 10, and the insulating barrier 111 is layed in institute
State on conductive layer 110.When user presses the capacitance sensing mechanism, the flexible part 101 of the substrate 10 is pressed, and drives institute
The second electrode 12 for stating flexible part 101 moves towards the first electrode 11, the second electrode 12 and the first electrode 11
The distance between change so that the capacitance of the capacitance sensing mechanism changes.When user unclamps the capacitance sensing mechanism,
The flexible part 101 the distance between the position before being pressed, the second electrode 12 and the first electrode 11 of rebounding also is returned
Numerical value before to pressing.
As shown in figure 3, it is another embodiment of the capacitance sensing mechanism, the capacitance sensing mechanism includes substrate
10th, positioned at the induction electrode (shown in phantom) 12 of first electrode 11 and second of the substrate 10, the phase of the second induction electrode 12
It is arranged at for the first electrode 11 on cover plate 13, the cover plate 13 is set relative to the substrate 10, the cover plate 13 1
End is fixed, remainder elasticity activity.When pressing the capacitance sensing mechanism, the cover plate 13 can be pressed, described in drive
Second electrode 12 moves towards the first electrode 11, the second electrode 12 can relatively described first electrode about 11 distance change
Become, the electric capacity of the capacitance sensing mechanism changes.When unclamping the capacitance sensing mechanism, the cover plate 13 rebounds, and returns
Position before to pressing.
The capacitance sensing mechanism is not limited only to said structure, as shown in figure 4, the second electrode 12 is arranged at cover plate
On 13, the cover plate 13 is oppositely arranged with substrate 10, and flexible machine is provided between the second electrode 12 and the first electrode 11
Structure 14, such as：Rubber etc..When pressing the capacitance sensing mechanism, the cover plate 13 can be pressed, and cover plate 13 extrudes the flexibility
Mechanism 14, the cover plate 13 drive the second electrode 12 to be moved towards the first electrode 11, and the second electrode 12 can phase
To the first electrode about 11 distance change, the electric capacity of the capacitance sensing mechanism 3 changes.When the release electric capacity sense
When surveying mechanism, the compliant mechanism 14 rebounds, the position that the cover plate 13 is returned to before pressing.The compliant mechanism 14 also can be by bullet
Property mechanism replace, such as：Spring etc..
Fig. 5 shows another embodiment for including compliant mechanism 14 of the present invention, the first electrode 11 and second electricity
Pole 12 is separated by compliant mechanism 14, and the second electrode 12 is located on the end face of compliant mechanism 14, presses the capacitance sensing
During mechanism, the compliant mechanism 14 is extruded, and drives the second electrode 12 to be moved to the first electrode 11, second electricity
The distance between pole 12 and the first electrode 11 change, and then the electric capacity formed changes.Unclamp the electric capacity sense
When surveying mechanism, the compliant mechanism 14 rebounds the state before being pressed.
As shown in fig. 6, when operator touches capacitance sensing mechanism, the control chip detects the electric capacity at least twice
Sensing mechanism, if the detected value is close, judge that the capacitance sensing mechanism is touched, perform the corresponding work(of touch operation
Energy；If the detected value of the capacitance sensing mechanism changes, judge that the capacitance sensing mechanism is pressed, perform pressing behaviour
Make corresponding function.The detected value can be capacitance or magnitude of voltage.
Specifically, first threshold of the setting on detecting data, the control chip detect the capacitance sensing mechanism, obtained
Data must be detected.The numerical value that second of detection obtains is obtained into the first difference compared with the numerical value that the first detection obtains, will
First difference is compared with the threshold value, if being less than the threshold value, judges that the capacitance sensing mechanism is touched, and performs and touches
The function of operation is touched, if being more than the threshold value, judges that the capacitance sensing mechanism is pressed, performs the function of pressing operation.
More preferably, as shown in Figure 7 and Figure 8, the first threshold on detecting data is set, sets second on quantity
Threshold value, the control chip detect the capacitance sensing mechanism, obtain detection data.Numerical value that second detection is obtained and the
The numerical value that one detection obtains, which is compared, obtains the first difference, and the numerical value and the numerical value of first time detection of third time detection are compared
Compared with the second difference is obtained, by that analogy, the numerical value for obtaining last time detection obtains compared with the numerical value of first time detection
N-th of difference.By the first difference, the second difference to n-th of difference compared with the first threshold, record is more than described
The quantity of first threshold, and compared with the Second Threshold, if being less than the Second Threshold, judge the capacitance sensing
Mechanism is touched, and performs the function of touch operation, if being more than the Second Threshold, judge the capacitance sensing mechanism by by
Pressure, perform the function of pressing operation.Or record is less than the quantity of first threshold, and compared with the Second Threshold, if
More than the Second Threshold, then judge that the capacitance sensing mechanism is touched, perform the function of touch operation, if less than described the
Two threshold values, then judge that the capacitance sensing mechanism is pressed, perform the function of pressing operation.Pass through first threshold and Second Threshold
Setting, avoid false touch.
The capacitance sensing mechanism can realize two functions simultaneously, it is possible to reduce the setting of electronic equipment touch key-press.
Claims (7)
1. a kind of capacitance sensing mechanism, it includes substrate, it is characterised in that：The capacitance sensing mechanism also include first electrode and
Second electrode, the first electrode are arranged on substrate, and the relatively described first electrode of the second electrode is set, can be relatively described
First electrode moves so that the distance between the second electrode and the first electrode change.
2. capacitance sensing mechanism as claimed in claim 1, it is characterised in that：The substrate includes mainboard and flexible part, described
Flexible part is bent to the mainboard, and relative to mainboard elasticity activity, the first electrode is located at the mainboard of the substrate, institute
State the flexible part that second electrode is located at the substrate.
3. touch key-press as claimed in claim 1, it is characterised in that：One cover plate is oppositely arranged with the substrate, and described first
Electrode is located at the substrate, and the second electrode is arranged on the cover plate, and relatively described first electrode moves up and down.
4. touch key-press as claimed in claim 3, it is characterised in that：Described cover plate one end is fixed, remainder elasticity activity.
5. the touch key-press as described in claim 1 or 3, it is characterised in that：Between the second electrode and the first electrode
Provided with elastic mechanism or compliant mechanism.
6. touch key-press as claimed in claim 1, it is characterised in that：It is provided between the second electrode and the first electrode
Compliant mechanism, the second electrode are located on the compliant mechanism.
7. touch key-press as claimed in claim 1, it is characterised in that：The first electrode and the second electrode include leading
Body layer and insulating barrier, the insulating barrier cover the conductor layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710725111.2A CN107656660A (en) | 2017-08-22 | 2017-08-22 | A kind of capacitance sensing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710725111.2A CN107656660A (en) | 2017-08-22 | 2017-08-22 | A kind of capacitance sensing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107656660A true CN107656660A (en) | 2018-02-02 |
Family
ID=61128444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710725111.2A Pending CN107656660A (en) | 2017-08-22 | 2017-08-22 | A kind of capacitance sensing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107656660A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101882038A (en) * | 2009-03-13 | 2010-11-10 | 阿尔卑斯电气株式会社 | Input media |
| CN102508588A (en) * | 2011-11-22 | 2012-06-20 | 汕头超声显示器（二厂）有限公司 | Dielectric-filled capacitive touch panel and manufacturing method thereof |
| CN105278792A (en) * | 2015-04-13 | 2016-01-27 | 希迪普公司 | Pressure detecting module and touch input device including the same |
| CN106527786A (en) * | 2015-09-09 | 2017-03-22 | 希迪普公司 | Touch pressure detectable touch input device including display module |
| CN207676314U (en) * | 2017-08-22 | 2018-07-31 | 苏州瀚瑞微电子有限公司 | A kind of capacitance sensing mechanism |
-
2017
- 2017-08-22 CN CN201710725111.2A patent/CN107656660A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101882038A (en) * | 2009-03-13 | 2010-11-10 | 阿尔卑斯电气株式会社 | Input media |
| CN102508588A (en) * | 2011-11-22 | 2012-06-20 | 汕头超声显示器（二厂）有限公司 | Dielectric-filled capacitive touch panel and manufacturing method thereof |
| CN105278792A (en) * | 2015-04-13 | 2016-01-27 | 希迪普公司 | Pressure detecting module and touch input device including the same |
| CN106527786A (en) * | 2015-09-09 | 2017-03-22 | 希迪普公司 | Touch pressure detectable touch input device including display module |
| CN207676314U (en) * | 2017-08-22 | 2018-07-31 | 苏州瀚瑞微电子有限公司 | A kind of capacitance sensing mechanism |
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