CN202889322U - Capacitive touch switch - Google Patents
Capacitive touch switch Download PDFInfo
- Publication number
- CN202889322U CN202889322U CN2012205882279U CN201220588227U CN202889322U CN 202889322 U CN202889322 U CN 202889322U CN 2012205882279 U CN2012205882279 U CN 2012205882279U CN 201220588227 U CN201220588227 U CN 201220588227U CN 202889322 U CN202889322 U CN 202889322U
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- CN
- China
- Prior art keywords
- layer
- touch switch
- surface insulation
- protective layer
- insulation protective
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- Expired - Lifetime
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Abstract
The utility model discloses a capacitive touch switch. The capacitive touch switch comprises a surface insulation protection layer and an induction layer, wherein a light-penetrable character region is arranged on the surface insulation protection layer; a touch inductive function region is arranged on the induction layer corresponding to the character region; a gray coating is integrally arranged on the outer surface of the surface insulation layer; and a diffuser film layer is arranged on the back side of the induction layer. The capacitive touch switch provided by the utility model has the advantages of good appearance, stable and reliable structure connection and on the like.
Description
Technical field
The utility model relates to a kind of soft-touch control, refers to especially a kind of capacitor type touch switch.
Background technology
Capacitor type touch switch is a kind of main product in the soft-touch control, be widely used on present mobile phone, panel computer and high-grade automobile and the household electrical appliance, its operation principle is: utilize the capacitive sensing layer, equivalence becomes a constantly relaxation oscillator of charging and discharging, if soft-touch control not, relaxation oscillator has a fixing charging discharging cycle, and frequency can be measured.If we will increase the dielectric constant of capacitor with pointing or the felt pen contact-making switch, charging discharging cycle is just elongated, and frequency will correspondingly reduce.Therefore, according to the variation of measuring period, just can detect touch action, and then carry out corresponding circuit and carry out function.
The structure of traditional capacitor type touch switch has generally comprised insulating protective layer and capacitive sensing layer; then integral body places on the pcb board; wherein be provided with the transparent area of character shape on the insulating protective layer; the position of the upper corresponding character shape transparent area of PCB is provided with backlight LED light; the operator starts the indication backlight that the LED lamp carries out character simultaneously when touch operation.Yet; this traditional capacitor type touch switch; when not operating; visually phenomenon is out for the transparent area of the character shape on its insulating protective layer; the operator is not when operating; still can see character, visually aesthetics is not good to cause insulating protective layer with cleaning, is difficult to be subject to consumer's favor.
Summary of the invention
The purpose of this utility model is the shortcoming and defect that exists in order to overcome prior art, and provides a kind of visual appearance degree good capacitor type touch switch.
For achieving the above object; the technical solution of the utility model is to include surface insulation protective layer and inductive layer; be provided with the character area of printing opacity on the described surface insulation protective layer; the position of corresponding character area is provided with the touch sensing function district on the described inductive layer; whole installation has the grey coating on the outer surface of described surface insulation protective layer, and the back of described inductive layer is provided with astigmatic rete.
By this setting, can effectively control the light transmittance of the character area of printing opacity, when product is not worked; can not see the character pattern of surface insulation protective layer, so that whole component parts outward appearance is more attractive in appearance, the eyeball that is more vulnerable to the client is looked at; promote the article market value, reach client's requirement.
It is bonding by the optics adhesive between described surface insulation protective layer and the inductive layer further arranging.
It is bonding by the optics adhesive between inductive layer and the astigmatic rete further arranging.
Further arranging is also to be provided with the liquid crystal display district on the described surface insulation protective layer, and the position in corresponding liquid crystal display district is provided with vacancy section on described inductive layer and the astigmatic rete.
The utility model effectively reduces the cost of this capacitor type touch switch owing to adopt above-mentioned technical combinations, and it is fitted has closely also increased touch sensitivity.
In sum, it is good to the utlity model has the product aesthetics, the advantage such as the structure stable connection is reliable.
Below in conjunction with specification drawings and specific embodiments the utility model is done further introduction.
Description of drawings
Fig. 1 the utility model embodiment STRUCTURE DECOMPOSITION figure.
Embodiment
Below by embodiment the utility model is carried out concrete description; only be used for the utility model is further specified; can not be interpreted as the restriction to the utility model protection range, the technician in this field can make some nonessential improvement and adjustment to the utility model according to the content of above-mentioned utility model.
Embodiment of the present utility model as shown in Figure 1; include surface insulation protective layer 1 and inductive layer 2; be provided with the character area 11 of printing opacity on the described surface insulation protective layer 1; the position of corresponding character area is provided with touch sensing function district 21 on the described inductive layer 2; whole installation has grey coating 12 on the outer surface of described surface insulation protective layer 1; the back of described inductive layer is provided with astigmatic rete 3; bonding by optics adhesive 4 between the described surface insulation protective layer 1 of present embodiment and the inductive layer 2, bonding by optics adhesive 4 between described inductive layer 2 and the astigmatic rete 3.
In addition, also be provided with liquid crystal display district 13 on the described surface insulation protective layer 1 of present embodiment, the position in corresponding liquid crystal display district is provided with vacancy section 22,31 on described inductive layer 2 and the astigmatic rete 3.
The PC resin that the described surface insulation protective layer 1 preferred employing model of present embodiment is LEXAN DMX245 GY 4G069T is made.Present embodiment astigmatism rete preferably adopts the film material of KIMOTO 38NSH rev.A to make.Can effectively control whole light transmittance, when realizing work, demonstration analysed clearly in the transparent area character, the visual appearance effect that character does not show when not working.
Claims (4)
1. capacitor type touch switch; include surface insulation protective layer and inductive layer; be provided with the character area of printing opacity on the described surface insulation protective layer; the position of corresponding character area is provided with the touch sensing function district on the described inductive layer; it is characterized in that: whole installation has the grey coating on the outer surface of described surface insulation protective layer, and the back of described inductive layer is provided with astigmatic rete.
2. a kind of capacitor type touch switch according to claim 1 is characterized in that: bonding by the optics adhesive between described surface insulation protective layer and the inductive layer.
3. a kind of capacitor type touch switch according to claim 1 is characterized in that: bonding by the optics adhesive between inductive layer and the astigmatic rete.
4. according to claim 1 and 2 or 3 described a kind of capacitor type touch switch, it is characterized in that: also be provided with the liquid crystal display district on the described surface insulation protective layer, the position in corresponding liquid crystal display district is provided with vacancy section on described inductive layer and the astigmatic rete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205882279U CN202889322U (en) | 2012-11-08 | 2012-11-08 | Capacitive touch switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205882279U CN202889322U (en) | 2012-11-08 | 2012-11-08 | Capacitive touch switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202889322U true CN202889322U (en) | 2013-04-17 |
Family
ID=48080708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012205882279U Expired - Lifetime CN202889322U (en) | 2012-11-08 | 2012-11-08 | Capacitive touch switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202889322U (en) |
-
2012
- 2012-11-08 CN CN2012205882279U patent/CN202889322U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130417 |
|
| CX01 | Expiry of patent term |