CN105242805A - Pressure sensor - Google Patents
Pressure sensor Download PDFInfo
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- CN105242805A CN105242805A CN201510653109.XA CN201510653109A CN105242805A CN 105242805 A CN105242805 A CN 105242805A CN 201510653109 A CN201510653109 A CN 201510653109A CN 105242805 A CN105242805 A CN 105242805A
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- pressure transducer
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- flexible circuit
- circuit board
- transducer according
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Abstract
The present invention provides a pressure sensor. The pressure sensor comprises a sensing sheet and a flexible circuit board, wherein the sensing sheet comprises an upper protection layer, an electrode layer, a base material, a shielding layer and a lower protection layer which are sequentially arranged from top to bottom; and two binding positions are formed on the flexible circuit board, one binding position is connected with the electrode layer and the other binding position is connected with the shielding layer. The pressure sensor can provide a pressure monitoring function for devices on the premise of using simple materials and a simple production process. Meanwhile, the sensing sheet also can be made transparent according to usage requirements.
Description
Technical field
A kind of pressure transducer of the present invention, belongs to technical field of touch control.
Background technology
At present, touch-screen is used widely on the electronic products such as mobile phone, and existing touch-screen can only provide the monitoring function of two-dimensional coordinate, and along with the applicable expansion of electronic product merit such as development and mobile phone of technology, pressure monitoring also becomes the market demand gradually.
Summary of the invention
The object of the invention is to overcome above-mentioned the deficiencies in the prior art, a kind of pressure transducer is provided, can under the prerequisite adopting simple material and simple production technique, for equipment provides pressure monitoring function.Meanwhile, transparent pressure sensor solution can also be provided.
The present invention is achieved in that a kind of pressure transducer, it is characterized in that, comprises sensing chip and flexible circuit board, and sensing chip comprises the up-protective layer, electrode layer, base material, screen layer and the lower protective layer that set gradually from top to bottom; Flexible circuit board is provided with Liang Chu nation location, and a place is connected with electrode layer, and another place is connected with screen layer.
Preferably, the material of described upper and lower protective seam is dielectric ink or diaphragm.
Preferably, the material of described electrode layer and screen layer is tin indium oxide, elargol, photosensitive silver, Nano Silver, nano-sized carbon, conductive ink or electrically conductive ink.
Particularly, when sensing chip needs transparent, the material preferential oxidation indium tin of electrode layer and screen layer, Nano Silver or nano-sized carbon.
Preferably, the material of described base material is PET.
Preferably, described sensing chip and the general ACF of flexible circuit board carry out nation calmly.
Beneficial effect of the present invention: under the prerequisite adopting simple material and simple production technique, for equipment provides pressure monitoring function.Meanwhile, transparent pressure sensor solution can also be provided.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention.
1. sensing chip 11. up-protective layer 12. electrode layer 13. base material 14. screen layer 15. lower protective layer 2. flexible circuit boards in figure.
Embodiment
Below in conjunction with accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described.
As shown in Figure 1, a kind of pressure transducer, is characterized in that, comprise sensing chip 1 and flexible circuit board 2, sensing chip 1 comprises the up-protective layer 11, one deck electrode layer 12, one deck base material 13, one deck screen layer 14 and the lower protective layer 15 that set gradually from top to bottom; Flexible circuit board 2 is provided with Liang Chu nation location, and a place is connected with electrode layer 12, and another place is connected with screen layer 14.
As better embodiment, the material of described up-protective layer 11 and lower protective layer 15 is dielectric ink or diaphragm (such as PET film).
As better embodiment, described electrode layer 12 is tin indium oxide, elargol, photosensitive silver, Nano Silver, nano-sized carbon, conductive ink or electrically conductive ink with the material of screen layer 14, when sensing chip needs transparent, the material preferential oxidation indium tin of electrode layer 12 and screen layer 14, Nano Silver or nano-sized carbon.
The material of described base material 13 is PET; It is fixed that described sensing chip 1 and the general ACF of flexible circuit board carry out nation.The Liang Chu nation location of flexible circuit board 2, is so conveniently bound in " Y " type with flexible circuit board 2.
In actual applications, this pressure transducer reference electrode of need arranging in pairs or groups uses, and reference electrode can be a certain electrode on application apparatus, and also can be the reference electrode of another increase, reference electrode be parallel with sensing chip 1.The electrode layer 12 of sensing chip 1 is towards reference electrode, and screen layer 14 is for shielding other electromagnetic interference (EMI) for electrode layer.In the use of equipment, require that between reference electrode and sensing chip 1, one maintains static, another one generation deformation, thus the electric capacity between reference electrode and electrode layer 12 is changed, then follow and calculate pressure according to certain algorithm by capacitance variations.As this pressure transducer be used for mobile phone time, a certain electrode paying the utmost attention to a certain electrode of selecting contact panel or display module is as with reference to electrode.For a certain electrode of contact panel as reference electrode, sensing chip 1 is fixed on a certain position on mobile phone, and the outside pressing force in requiring mobile phone to use does not make sensing chip 1 that deformation occurs, and sensing chip 1 is parallel with contact panel.-user is when pressing mobile phone touch panel, due to the effect of power, can cause touch panel that small shape face occurs, distance between electrode layer 12 on reference electrode then on contact panel and sensing chip 1 can change, thus cause both capacitance variations, again by certain algorithm, the push action of finger can be extrapolated.In the present invention, the described electrode layer 12 of pressure transducer is all that the capacitance plate used produces material with screen layer 14, base material 13 etc., the production technology of capacitance plate and production equipment can produce pressure transducer, compared to traditional pressure transducer, production technology simplifies greatly, and pressure transducer of the present invention is layer structure, is more suitable for touch-screen.Meanwhile, because sensing chip 1 can adopt transparent material, make it can be positioned in actual applications between mobile phone faceplate and display module, this feature allows the structural design of complete machine can have more various selection, meets the different demands on handset structure.
Pressure transducer of the prior art adopts pure flexible circuit board to make, and consumable quantity is large, and cost is high, and large to the pollution of environment, flatness is low, and in pressure transducer production run of the present invention, cost is low, and low to the pollution of environment, flatness is high
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (8)
1. a pressure transducer, is characterized in that, comprises sensing chip and flexible circuit board, and sensing chip comprises the up-protective layer, electrode layer, base material, screen layer and the lower protective layer that set gradually from top to bottom; Flexible circuit board is provided with Liang Chu nation location, and a place is connected with electrode layer, and another place is connected with screen layer.
2. a kind of pressure transducer according to claim 1, is characterized in that, the material of described up-protective layer and lower protective layer is dielectric ink or diaphragm.
3. a kind of pressure transducer according to claim 1, is characterized in that, the material of described electrode layer and screen layer is tin indium oxide, elargol, photosensitive silver, Nano Silver, nano-sized carbon, conductive ink or electrically conductive ink.
4. a kind of pressure transducer according to claim 1, is characterized in that, the material of electrode layer and screen layer is tin indium oxide, Nano Silver or nano-sized carbon.
5. a kind of pressure transducer according to claim 1, is characterized in that, the material of described base material is PET.
6. a kind of pressure transducer according to claim 1, is characterized in that, it is fixed that described sensing chip and the general ACF of flexible circuit board carry out nation.
7. a kind of pressure transducer according to claim 1, is characterized in that, the nation location of described flexible circuit board is in " Y " type.
8. a kind of pressure transducer according to claim 2, is characterized in that, described diaphragm is PET film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510653109.XA CN105242805B (en) | 2015-10-10 | 2015-10-10 | A kind of pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510653109.XA CN105242805B (en) | 2015-10-10 | 2015-10-10 | A kind of pressure sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105242805A true CN105242805A (en) | 2016-01-13 |
| CN105242805B CN105242805B (en) | 2019-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510653109.XA Active CN105242805B (en) | 2015-10-10 | 2015-10-10 | A kind of pressure sensor |
Country Status (1)
| Country | Link |
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| CN (1) | CN105242805B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106163103A (en) * | 2016-07-01 | 2016-11-23 | 业成光电（深圳）有限公司 | Circuit filling perforation bridging arrangement and method |
| CN106249958A (en) * | 2016-08-15 | 2016-12-21 | 深圳市骏达光电股份有限公司 | GF2 structure touch screen and manufacturing process thereof |
| CN109254468A (en) * | 2018-11-09 | 2019-01-22 | 广东彩乐智能包装科技有限公司 | Have both electrochromism and the flexible device of electroluminescent function and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101458133A (en) * | 2007-12-13 | 2009-06-17 | 雅马哈株式会社 | Pressure sensor and data input apparatus |
| CN103677366A (en) * | 2012-09-20 | 2014-03-26 | 宸鸿科技(厦门)有限公司 | Touch panel module, touch device and manufacturing method thereof |
| CN104516595A (en) * | 2013-09-27 | 2015-04-15 | 天津富纳源创科技有限公司 | Touch device |
| CN204990248U (en) * | 2015-10-10 | 2016-01-20 | 江西合力泰科技有限公司 | Pressure sensor |
-
2015
- 2015-10-10 CN CN201510653109.XA patent/CN105242805B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101458133A (en) * | 2007-12-13 | 2009-06-17 | 雅马哈株式会社 | Pressure sensor and data input apparatus |
| CN103677366A (en) * | 2012-09-20 | 2014-03-26 | 宸鸿科技(厦门)有限公司 | Touch panel module, touch device and manufacturing method thereof |
| CN104516595A (en) * | 2013-09-27 | 2015-04-15 | 天津富纳源创科技有限公司 | Touch device |
| CN204990248U (en) * | 2015-10-10 | 2016-01-20 | 江西合力泰科技有限公司 | Pressure sensor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106163103A (en) * | 2016-07-01 | 2016-11-23 | 业成光电（深圳）有限公司 | Circuit filling perforation bridging arrangement and method |
| CN106249958A (en) * | 2016-08-15 | 2016-12-21 | 深圳市骏达光电股份有限公司 | GF2 structure touch screen and manufacturing process thereof |
| CN109254468A (en) * | 2018-11-09 | 2019-01-22 | 广东彩乐智能包装科技有限公司 | Have both electrochromism and the flexible device of electroluminescent function and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN105242805B (en) | 2019-03-15 |
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