CN106033015A - Pressure sensor for touch panel - Google Patents
Pressure sensor for touch panel Download PDFInfo
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- CN106033015A CN106033015A CN201510108694.5A CN201510108694A CN106033015A CN 106033015 A CN106033015 A CN 106033015A CN 201510108694 A CN201510108694 A CN 201510108694A CN 106033015 A CN106033015 A CN 106033015A
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- signal input
- pad
- input link
- touch panel
- conductor patterns
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Abstract
The invention relates to a pressure sensor for a touch panel, so that a touch input error can be prevented effectively. The pressure sensor comprises a signal input component, a gasket, and a piezoelectric film. Electric conductors are printed on a substrate of the signal input component with patterns in an interdigitated shape. The gasket is arranged at the edge, without the conductor patterns, of the substrate of the signal input component. And the piezoelectric film is arranged on the gasket and is isolated from the signal input component; and the resistance value changes based on applied pressures. An interval (D1) to the conductor pattern, adjacent to the gasket, of the signal input component is smaller than an interval (D2) to the conductor pattern, farthest away from the gasket, of the signal input component.
Description
Technical field
The present invention relates to touch panel pressure transducer, more specifically, relate to one and can effectively prevent touch input
The touch panel pressure transducer of mistake.
Background technology
It is said that in general, in the equipment such as PC or the network terminal, as the interface (interface) for equipment Yu user
Device, keyboard is widely used.
Most keyboard has mechanicalness and constitutes, and installs spring and switch, use below the button made with injection article
Person hits button with set intensity, thus overcomes the elastic force of spring, makes switching manipulation, it is achieved key inputs.
On the other hand, in addition to having the keyboard that this mechanicalness is constituted, the keyboard of touch panel mode is make use of to step on
?.The keyboard utilizing touch panel mode has a kind of technique device, the body current that perception produces because of contact, or profit
By pressure or variations in temperature etc., whether perception contacts with human body (finger) or pen, is identified.In particular with pressure
The touch panel of change and mode that whether perception contacts with human body or pen attracts tremendous attention.
On the other hand, use touch panel configuration piezoelectricity (piezo) thin film on pad of this pressure transducer, deposit
In the problem that touch input mistake occurs at adjacent pad because of described pad.
Korean Patent Room December in 2011 discloses the background of the present invention of registered patent publication 10-1094165 on the 08th
Technology.
Summary of the invention
The problem of the present invention researched and developed to solve described problem, is to provide a kind of touch panel pressure transducer, than
Conductor patterns more densely the leading the signal input link being configured at adjacent pad of farthest it is configured in pad
Electricity body pattern arranges such that it is able to effectively prevent touch input mistake.
The touch panel pressure transducer of one embodiment of the invention is characterised by, including: signal input link, its
Shape (interdigitate) pattern intersected with finger on substrate is printed with electric conductor；Pad, it is configured at described signal
The edge not forming described conductor patterns on the substrate of input link；And piezoelectricity (piezo) thin film, it is configured at described
On pad, isolating with described signal input link, resistance value changes according to the size of the pressure applied；It is configured at and institute
State the interval (D1) of the conductor patterns of the described signal input link of pad adjoiner, more farthest than being configured at from described pad
The interval (D2) of the conductor patterns of the described signal input link at place is little.
Preferably, the touch panel pressure transducer of one embodiment of the invention is characterised by, is configured at and described pad
The interval (D1) of the conductor patterns of the described signal input link of sheet adjoiner, for being configured at from described pad farthest
0.2～0.6 times of the interval (D2) of the conductor patterns of described signal input link.
Preferably, the touch panel pressure transducer of one embodiment of the invention is characterised by, the height of described pad
It is 0.08～0.15mm.
For the touch panel pressure transducer of one embodiment of the invention, ratio is configured at leading of farthest in pad
The conductor patterns of the signal input link being configured at adjacent pad is more densely arranged by electricity body pattern, it is thus possible to
Enough effectively prevent touch input mistake.
Accompanying drawing explanation
Fig. 1 is the axonometric chart of the touch panel pressure transducer of one embodiment of the invention.
Fig. 2 is the profile of the touch panel pressure transducer of one embodiment of the invention.
Detailed description of the invention
The details of other embodiments are contained in detailed description and accompanying drawing.
With reference to the embodiment described the most in detail with accompanying drawing below, advantages of the present invention and feature and the method reaching it
Will be clear and definite.But, the present invention is not limited to embodiments disclosed below, can be by mutually different variform body
Existing, the present embodiment is merely provided for making disclosure of the invention more complete, makes those skilled in the art complete
The full category understanding invention, the present invention is only defined by the scope of claim.Description in the whole text in, same reference notation
Number censure same element.
As shown in Figures 1 and 2, the touch panel pressure transducer of one embodiment of the invention includes signal input link
(1300), pad (1200) and piezoelectric membrane (1100) are constituted.
Signal input link (1300) as it is shown in figure 1, on substrate, shape (interdigitate) pattern intersected with finger
It is printed with electric conductor.
Wherein, a conductor patterns (1310) is formed parallel to comb shape, connects in bottom, another electric conductor
Pattern (1320) is formed parallel to comb shape, connects on top, intersects one with a conductor patterns (1310) as finger
Sample arranges.
What pad (1200) was configured on the substrate of described signal input link (1300) do not formed described conductor patterns (1310,
1320) edge.
On the other hand, piezoelectric membrane (1100) is configured on described pad (1200), with described signal input link (1300) every
From, if the size of the pressure applied becomes big, resistance value then diminishes, if the size of the pressure applied diminishes, and resistance value
Then become big.
If applying to touch to described piezoelectric membrane (1100), resistance value then changes according to the size of touch pressure, as above
Described, if touch pressure becomes big, resistance value then diminishes, and the supply voltage of access reduces, it is thus possible to perception key inputs.
Wherein, for the touch panel pressure transducer of one embodiment of the invention, it is configured at and described pad (1200)
The interval (D1) of the conductor patterns (1310,1320) of the described signal input link (1300) of adjoiner, ratio is configured at from institute
The interval (D2) of the conductor patterns (1310,1320) stating the described signal input link (1300) of pad (1200) farthest is little.
Specifically, the conductor patterns of described signal input link (1300) with described pad (1200) adjoiner it is configured at
The interval (D1) of (1310,1320), for being configured at the described signal input link (1300) from described pad (1200) farthest
0.2～0.6 times of interval (D2) of conductor patterns (1310,1320).
The described signal input link (1300) being configured at described pad (1200) adjoiner conductor patterns (1310,
1320) interval (D1) and be configured at the electric conductor of the described signal input link (1300) from described pad (1200) farthest
In the case of the interval (D2) of pattern (1310,1320) is identical, due to described pad (1200), touch pressure is to being configured at
Fully transmit with the conductor patterns (1310,1320) of described pad (1200) adjoiner, thus touch input mistake can occur.
But, the touch panel pressure transducer of one embodiment of the invention is as it has been described above, ratio is configured at from described pad
(1200) conductor patterns (1310,1320) of the described signal input link (1300) of farthest more densely to be configured at
The conductor patterns (1310,1320) of the described signal input link (1300) of described pad (1200) adjoiner arranges, from
And due to described pad (1200), even if to the conductor patterns (1310,1320) being configured at described pad (1200) adjoiner
Transmit less pressure, it is also possible to effectively suppression touch input mistake.
On the other hand, for the touch panel pressure transducer of one embodiment of the invention, by described pad
(1200) height (H) is adjusted to 0.08～about 0.15mm, thus the pressure of touch input is effectively being passed to conduction
While body pattern (1310,1320), it is possible to pressure transducer is made to the thinnest.
Those skilled in the art are appreciated that the present invention is not changing its technological thought or required feature
On the premise of, it is possible to implement with other concrete form.Therefore, the embodiment of above description is only interpreted as in all respects
It is example, and non-limiting.Comparing to described detailed description, the scope of the present invention should be interpreted that by claims described later
Representative, all wrap from the meaning of claims and the form of scope and all changes of its equalization concept derivation or deformation
It is contained in the scope of the present invention.
Symbol description
1100: piezoelectric membrane 1200: pad
1300: signal input link 1310: conductor patterns
1320: conductor patterns
Claims (3)
1. a touch panel pressure transducer, it is characterised in that including:
Signal input link, its shape (interdigitate) pattern intersected with finger on substrate is printed with electric conductor；
Pad, it is configured at the edge not forming described conductor patterns on the substrate of described signal input link；And
Piezoelectricity (piezo) thin film, it is configured on described pad, isolates with described signal input link, and resistance value is according to applying
The size of pressure and change；
Being configured at and the interval (D1) of conductor patterns of described signal input link of described pad adjoiner, ratio is configured at from institute
The interval (D2) of the conductor patterns stating the described signal input link of pad farthest is little.
Touch panel pressure transducer the most according to claim 1, it is characterised in that
It is configured at and the interval (D1) of conductor patterns of described signal input link of described pad adjoiner, for being configured at from institute
State 0.2～0.6 times of interval (D2) of the conductor patterns of the described signal input link of pad farthest.
Touch panel pressure transducer the most according to claim 1, it is characterised in that
The height of described pad is 0.08～0.15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510108694.5A CN106033015A (en) | 2015-03-12 | 2015-03-12 | Pressure sensor for touch panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510108694.5A CN106033015A (en) | 2015-03-12 | 2015-03-12 | Pressure sensor for touch panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106033015A true CN106033015A (en) | 2016-10-19 |
Family
ID=57149870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510108694.5A Pending CN106033015A (en) | 2015-03-12 | 2015-03-12 | Pressure sensor for touch panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106033015A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090021354A1 (en) * | 2004-08-25 | 2009-01-22 | Hidetaka Furusho | Input device |
| CN101387929A (en) * | 2007-09-11 | 2009-03-18 | 阿尔卑斯电气株式会社 | Input apparatus |
| CN101840283A (en) * | 2009-01-28 | 2010-09-22 | 索尼公司 | Display/input device |
| CN102262488A (en) * | 2010-05-24 | 2011-11-30 | 欧姆龙株式会社 | Static Capacity Type Input Device |
| CN102446043A (en) * | 2010-09-17 | 2012-05-09 | 索尼公司 | Sensor apparatus and information processing apparatus |
| US20130206568A1 (en) * | 2012-02-14 | 2013-08-15 | Wintek Corporation | Touch panel |
| CN203746046U (en) * | 2013-03-04 | 2014-07-30 | 阿尔卑斯电气株式会社 | Electrostatic capacitor type touch panel and handheld electronic device using same |
| CN105260047A (en) * | 2014-07-14 | 2016-01-20 | 韩国科亚电子股份有限公司 | Pressure sensor for touch panel |
-
2015
- 2015-03-12 CN CN201510108694.5A patent/CN106033015A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090021354A1 (en) * | 2004-08-25 | 2009-01-22 | Hidetaka Furusho | Input device |
| CN101387929A (en) * | 2007-09-11 | 2009-03-18 | 阿尔卑斯电气株式会社 | Input apparatus |
| CN101840283A (en) * | 2009-01-28 | 2010-09-22 | 索尼公司 | Display/input device |
| CN102262488A (en) * | 2010-05-24 | 2011-11-30 | 欧姆龙株式会社 | Static Capacity Type Input Device |
| CN102446043A (en) * | 2010-09-17 | 2012-05-09 | 索尼公司 | Sensor apparatus and information processing apparatus |
| US20130206568A1 (en) * | 2012-02-14 | 2013-08-15 | Wintek Corporation | Touch panel |
| CN203746046U (en) * | 2013-03-04 | 2014-07-30 | 阿尔卑斯电气株式会社 | Electrostatic capacitor type touch panel and handheld electronic device using same |
| CN105260047A (en) * | 2014-07-14 | 2016-01-20 | 韩国科亚电子股份有限公司 | Pressure sensor for touch panel |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161019 |
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| WD01 | Invention patent application deemed withdrawn after publication |