CN203840316U - Capacitive membrane switch - Google Patents
Capacitive membrane switch Download PDFInfo
- Publication number
- CN203840316U CN203840316U CN201320892749.2U CN201320892749U CN203840316U CN 203840316 U CN203840316 U CN 203840316U CN 201320892749 U CN201320892749 U CN 201320892749U CN 203840316 U CN203840316 U CN 203840316U
- Authority
- CN
- China
- Prior art keywords
- layer
- key
- led
- line layer
- led element
- 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.)
- Expired - Fee Related
Links
- 239000012528 membrane Substances 0.000 title description 2
- 239000010408 film Substances 0.000 claims description 23
- 241000446313 Lamella Species 0.000 claims description 14
- 239000010409 thin film Substances 0.000 claims description 6
- 239000002390 adhesive tape Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Push-Button Switches (AREA)
Abstract
The utility model discloses a capacitive membrane switch which sequentially comprises a bottom glue layer, a key line layer, a surface key layer and a panel layer from bottom to top. An LED element is connected on an LED circuit layer. The key line layer is provided with a capacitive button. The membrane switch is internally provided with the LED element. An LED line layer and an LED key sheet layer are sequentially arranged from top to bottom between the key line layer and the bottom glue layer. An LGF light guide membrane and a line key sheet layer are sequentially arranged from top to bottom between the surface key layer and the key line layer. The LED element is connected with the LED line layer and an upper end of the LED element is contacted with the LGF light guide membrane. The surface key layer has light transmission openings. The capacitive membrane switch has a backlight effect, and achieves an effect that the position of a key can be clearly seen under a dark condition without an external light source.
Description
Technical field
The utility model belongs to membrane switch technology field, relates in particular to a kind of capacitive films switch.
Background technology
Conventional capacitive films switch product is under the darker environment of light, to see key position clearly not having under the environment of external light source.
Utility model content
For this reason, technical problem to be solved in the utility model is to provide a kind of capacitive films switch that can realize backlight effect, even do not having light under the environment of external light source more also can see key position clearly to realize, overcomes the deficiency that prior art exists.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of capacitive films switch, be followed successively by from top to bottom primer layer, button line layer, face key layer and face plate, described LED element is connected on described LED circuit layer, and described button line layer is provided with capacitance key, it is characterized in that: in described thin film switch, be provided with LED element; Between described button line layer and primer layer, be provided with successively from top to bottom LED line layer and LED key lamella; Between on described key layer and button line layer, be also provided with successively from top to bottom LGF light guiding film and circuit key lamella; Described LED element connects described LED line layer and upper end contacts with described LGF light guiding film, and described key layer has printing opacity vacancy.
In the utility model embodiment, the thickness of described LGF light guiding film is in 1mm.Can guarantee the sensitivity of capacitance key like this.
Described primer layer, LED key lamella, circuit key lamella, face key layer are double faced adhesive tape.
The material of described plate is PET.
The utility model, by LED element and LGF light guiding film are set in thin film switch, so just has backlight effect, thereby is not having light under the environment of external light source more also can see key position clearly even if can realize.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated:
Fig. 1 is structural representation of the present utility model.
In figure:
101-LED element, 102-primer layer, 103-LED line layer, 104-LED key lamella, 105-button line layer, 106-circuit key lamella, 107-LGF light guiding film, 108-face key layer, 109-face plate, 110-capacitance key, 111-printing opacity vacancy.
Embodiment
As shown in Figure 1, capacitive films switch of the present utility model, in it, be provided with LED element 101, this thin film switch is from lower to being followed successively by primer layer 102, LED line layer 103, LED key lamella 104, button line layer 105, circuit key lamella 106, LGF light guiding film 107, face key layer 108 and face plate 109.
Wherein primer layer 102, LED key lamella 104, circuit key lamella 106 and face key layer 108 are double faced adhesive tape.On button line layer 105, there is capacitance key 110.For guarantee not affect the sensitivity of capacitance key after increasing LGF light guiding film 107, require the THICKNESS CONTROL of LGF light guiding film in 1mm.
On face key layer 108, also offer printing opacity vacancy 111.The material of face plate 109 is PET.
It is exactly more than capacitive films switch of the present utility model; its working method is; when finger touches is to thin film switch surface; capacitance key 110 can produce induced signal and pass to the controller (not shown) outside thin film switch through button line layer 105; then controller is just lighted LED element; the light that LED element sends just also finally comes out from printing opacity vacancy 111 along the transmission of LGF light guiding film; conventionally a switch key shape can be demonstrated, thereby key position can be determined.
By foregoing detailed description, can find out, this capacitive films switch of the present utility model has backlight effect, even if can realize, is not having light under the environment of external light source more also can see key position clearly.
But; those skilled in the art will recognize that; above-mentioned embodiment is exemplary; in order better to make those skilled in the art can understand this patent; can not be interpreted as it is the restriction to this patent protection range; so long as according to spirit that this patent discloses do be anyly equal to change or modify, all fall into the scope of this patent protection.
Claims (3)
1. a capacitive films switch, is followed successively by primer layer, button line layer, face key layer and face plate from top to bottom, and described LED element is connected on described LED circuit layer, is provided with LED element in described thin film switch; Between described button line layer and primer layer, be provided with successively from top to bottom LED line layer and LED key lamella; Between on described key layer and button line layer, be also provided with successively from top to bottom LGF light guiding film and circuit key lamella; Described LED element connects described LED line layer and upper end contacts with described LGF light guiding film, and described key layer has printing opacity vacancy, it is characterized in that: described button line layer is provided with capacitance key; The thickness of described LGF light guiding film is in 1mm.
2. capacitive films switch according to claim 1, is characterized in that: described primer layer, LED key lamella, circuit key lamella, face key layer are double faced adhesive tape.
3. capacitive films switch according to claim 1, is characterized in that: the material of described plate is PET.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320892749.2U CN203840316U (en) | 2013-12-31 | 2013-12-31 | Capacitive membrane switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320892749.2U CN203840316U (en) | 2013-12-31 | 2013-12-31 | Capacitive membrane switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203840316U true CN203840316U (en) | 2014-09-17 |
Family
ID=51518109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320892749.2U Expired - Fee Related CN203840316U (en) | 2013-12-31 | 2013-12-31 | Capacitive membrane switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203840316U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105160334A (en) * | 2015-10-10 | 2015-12-16 | 江西合力泰科技有限公司 | Panel with multifunctional keys |
-
2013
- 2013-12-31 CN CN201320892749.2U patent/CN203840316U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105160334A (en) * | 2015-10-10 | 2015-12-16 | 江西合力泰科技有限公司 | Panel with multifunctional keys |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20181231 |