CN201576594U - Electronic membrane switch - Google Patents
Electronic membrane switch Download PDFInfo
- Publication number
- CN201576594U CN201576594U CN2009202962138U CN200920296213U CN201576594U CN 201576594 U CN201576594 U CN 201576594U CN 2009202962138 U CN2009202962138 U CN 2009202962138U CN 200920296213 U CN200920296213 U CN 200920296213U CN 201576594 U CN201576594 U CN 201576594U
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- gauze screen
- circuit
- described gauze
- grid
- electric thin
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Abstract
The utility model provides a membrane switch which can solve the electrostatic discharge phenomenon and has low cost, easy processing, light weight and stable product quality. Through printing a conductive carbon web on the reverse side of the printing surface of a circuit printing layer circuit, electrostatic discharge protection is conducted to the circuit of the membrane switch; and through reasonably setting the parameters of carbon web area, carbon web line thickness, carbon web line intervals and the like and considering the factors of cost, processing and product performance, the effect of electrostatic screening of the membrane switch is achieved.
Description
Technical field
The present invention relates to a kind of electric thin switch, relate to a kind of electric thin switch that has the electrostatic screen function specifically.
Background technology
The thin film switch line system often suffers the interference of static discharge easily.The static discharge phenomenon can cause interference voltage and electric current on the circuit of thin film switch, cause the problem in the operation of equipment.May one the electric charge that in normal operation of equipment, has on clothes or the skin of equipment operator be transmitted to electronic product inside by thin film switch, influence the operate as normal of electronic device.The operating voltage of modem semi-conductor devices is more and more lower, and semiconductor device electromagnetic interference sensitivity to external world improves greatly, therefore how to solve thin film switch and avoids the problem of static discharge interference more and more to be subjected to attention.The main thought that solves at present thin film switch electrostatic screen problem be with human body with static by screen, static is led big ground, thus protection electronic devices and components and circuit.The most frequently used method is that the thin conductive metal material of assembling one deck softness on last circuit layer carries out electrostatic screen, this mode can shield relevant switching circuit and avoid the static discharge phenomenon, but use soft thin conductive metal material can increase many layer of material, many operations of die-cut assemblings have together obviously increased the cost and the weight of thin film switch; The method of another kind of shielding is directly to print continuous conductive metal material layer on the reverse side of last line circuit printing surface, but conductive metal material price comparison height, the course of processing is numerous and diverse, increase product cost greatly, and in the course of processing, scratch easily, draw and break, cause the thin film switch product failure.
Summary of the invention
For overcoming the deficiencies in the prior art, the purpose of this invention is to provide a kind of thin film switch static discharge phenomenon, low, the handling ease of cost, in light weight, constant product quality that solves.
For realizing above purpose, the present invention is achieved in that
A kind of electric thin switch, the tack coat that comprises the tack coat of printing surface flaggy, panel and last circuit, last circuit printed layers, separator, following circuit printed layers and switch and casing, the described circuit printed layers that goes up comprises the first and second relative surfaces, be printed with the circuit-line figure on the first surface, second surface is printed with gauze screen, the web that described gauze screen forms for the carbon printing ink printing of adopting conductivity.
Also can do further perfect by the following technical programs:
The distance of the edge of described gauze screen and electric thin switching edge is greater than 4mm, and the line pattern of upper and lower circuit printed layers is included in the described gauze screen figure scope.
The grid of described gauze screen is a quadrangle.
The grid of described gauze screen is a hexagon.
The grid of described gauze screen is a triangle.
The length of side of the grid of described gauze screen is smaller or equal to 4mm, and the line weight of grid is greater than 0.5mm.
Described gauze screen edge is real frame line, and real frame line width is greater than 2mm.
Compared with prior art; the present invention is by carrying out electrostatic discharge (ESD) protection in the back face printing conductive carbon mesh of last circuit printed layers circuit printing surface to the circuit of thin film switch; parameters such as the area by appropriate design carbon net, the thickness of carbon netting twine bar, carbon netting twine stripe pitch; take into account the factor of cost, processing and properties of product, guaranteed the effect of thin film switch electrostatic screen well.
Description of drawings
Fig. 1 is an internal structure decomposing schematic representation of the present invention;
Fig. 2 for the embodiment of the invention 1 remove the printing surface flaggy and with the structural representation of the tack coat of last circuit;
Fig. 3 for the embodiment of the invention 2 remove the printing surface flaggy and with the structural representation of the tack coat of last circuit;
Fig. 4 for the embodiment of the invention 3 remove the printing surface flaggy and with the structural representation of the tack coat of last circuit.
Embodiment
Below in conjunction with drawings and Examples the present invention is described in further detail.
Embodiment 1
As shown in Figure 1, 2, a kind of electric thin switch, the tack coat 6 that comprises the tack coat 2 of printing surface flaggy 1, panel and last circuit, last circuit printed layers 3, separator 4, following circuit printed layers 5 and switch and casing, the described circuit printed layers 3 that goes up comprises opposite first 301 and second surface 302, be printed with circuit-line figure 303 on the first surface 301, second surface 302 is printed with gauze screen 7, the web that described gauze screen 7 forms for the carbon printing ink printing of adopting conductivity.
As shown in Figure 1, 2, the edge 701 of described gauze screen 7 and the distance of electric thin switching edge 8 are greater than 4mm, and the line pattern 501 of the line pattern 303 of last circuit printed layers 3, following circuit printed layers 5 is included in the described gauze screen 7 figure scopes.
As shown in Figure 2, the grid of described gauze screen 7 is a quadrangle.
As shown in Figure 2, the length of side of the grid of described gauze screen 7 is smaller or equal to 4mm, and the line weight of grid is greater than 0.5mm.
As shown in Figure 2, described gauze screen 7 edges are real frame line, and real frame line width is greater than 2mm.
As shown in Figure 3, the difference of present embodiment and embodiment 1 is that the grid of described gauze screen 7 is a hexagon.
As shown in Figure 4, the difference of present embodiment and embodiment 1,2 is that the grid of described gauze screen is a triangle.
Claims (7)
1. electric thin switch, the tack coat that comprises the tack coat of printing surface flaggy, panel and last circuit, last circuit printed layers, separator, following circuit printed layers and switch and casing, it is characterized in that the described circuit printed layers that goes up comprises the first and second relative surfaces, be printed with the circuit-line figure on the first surface, second surface is printed with gauze screen, the web that described gauze screen forms for the carbon printing ink printing of adopting conductivity.
2. electric thin switch according to claim 1, the distance that it is characterized in that the edge of described gauze screen and electric thin switching edge is greater than 4mm, and the line pattern of upper and lower circuit printed layers is included in the described gauze screen figure scope.
3. electric thin switch according to claim 1, the grid that it is characterized in that described gauze screen is a quadrangle.
4. electric thin switch according to claim 1, the grid that it is characterized in that described gauze screen is a hexagon.
5. electric thin switch according to claim 1, the grid that it is characterized in that described gauze screen is a triangle.
6. according to the described electric thin switch of one of claim 3～5, the length of side of grid that it is characterized in that described gauze screen is smaller or equal to 4mm, and the line weight of grid is greater than 0.5mm.
7. according to the described electric thin switch of one of claim 1～5, it is characterized in that described gauze screen edge is real frame line, real frame line width is greater than 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202962138U CN201576594U (en) | 2009-12-31 | 2009-12-31 | Electronic membrane switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202962138U CN201576594U (en) | 2009-12-31 | 2009-12-31 | Electronic membrane switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201576594U true CN201576594U (en) | 2010-09-08 |
Family
ID=42696469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202962138U Expired - Fee Related CN201576594U (en) | 2009-12-31 | 2009-12-31 | Electronic membrane switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201576594U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105590775A (en) * | 2015-12-22 | 2016-05-18 | 上海意力寰宇电路世界有限公司 | Membrane switch with window antistatic function |
| CN110544595A (en) * | 2019-09-07 | 2019-12-06 | 厦门铭彩电子科技有限公司 | Anti-static membrane switch and manufacturing method thereof |
| CN113948328A (en) * | 2021-10-20 | 2022-01-18 | 郑州启晨装潢包装科技有限责任公司 | Thin film switch and preparation method thereof |
-
2009
- 2009-12-31 CN CN2009202962138U patent/CN201576594U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105590775A (en) * | 2015-12-22 | 2016-05-18 | 上海意力寰宇电路世界有限公司 | Membrane switch with window antistatic function |
| CN105590775B (en) * | 2015-12-22 | 2018-12-14 | 上海意力寰宇电路世界有限公司 | Thin film switch with window anti-static function |
| CN110544595A (en) * | 2019-09-07 | 2019-12-06 | 厦门铭彩电子科技有限公司 | Anti-static membrane switch and manufacturing method thereof |
| CN110544595B (en) * | 2019-09-07 | 2024-02-27 | 厦门铭彩电子科技有限公司 | Antistatic membrane switch and manufacturing method thereof |
| CN113948328A (en) * | 2021-10-20 | 2022-01-18 | 郑州启晨装潢包装科技有限责任公司 | Thin film switch and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100908 Termination date: 20131231 |