CN202395748U - Touch key device - Google Patents
Touch key device Download PDFInfo
- Publication number
- CN202395748U CN202395748U CN2012200230902U CN201220023090U CN202395748U CN 202395748 U CN202395748 U CN 202395748U CN 2012200230902 U CN2012200230902 U CN 2012200230902U CN 201220023090 U CN201220023090 U CN 201220023090U CN 202395748 U CN202395748 U CN 202395748U
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- China
- Prior art keywords
- light
- panel
- circuit board
- touch key
- key device
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- 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
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Abstract
The utility model discloses a touch key device, which comprises a panel and a circuit board arranged behind the panel. The panel is made of a light-transmitting material, a light-proof layer is silk-screened, and gaps are reserved at positions in the light-proof layer corresponding to keys. Light guiding holes are arranged at positions on the circuit board corresponding to the keys, and a light scattering backlight board is arranged behind the circuit board. The novel touch key device is light and thin, sensitive and stable in induction, gentle and even in display light, and low in cost.
Description
Technical field
The utility model belongs to the electronic control technology field, especially relates to a kind of touch button device.
Background technology
Touch button device is widely used in electric control fields such as household, electrical equipment, and the user triggers control signal corresponding through touching specific regions such as this numeral of installing, pattern.Touch button device generally comprises panel, circuit board (being pcb board) and light-emitting device; Existing touch button device, its light-emitting device use usually and are welded in the LED direct lighting on the pcb board, because LED is a point-source of light; Obtain uniform light on the panel in order to make; Must draw back certain distance to induction panel and pcb board, use conducting medium (like conductive rubber, metal spring line etc.) to couple together the copper film on induction panel and the pcb board again.So just seriously hindered the development of the lightening direction of electronic product, simultaneously, needed to add conducting medium, and all needed a LED below each button, not only increased cost, also be unfavorable for energy-conserving and environment-protective simultaneously as light source.In addition because conducting medium in the middle of existing has the failure risk that loose contact occurs between middle conducting medium and the key induced copper film, for example, when will cause behind the copper film surface oxidation and medium between loose contact.
The utility model content
The purpose of the utility model provides a kind of lightening, and induction is sensitive stable, shows that light is soft evenly, cheaply the novel touch key device.
For this reason; The technical scheme that the utility model adopts is such: touch button device, and the circuit board after comprising panel and being arranged on panel is characterized in that: panel adopts light transmissive material to process; And silk-screen has light non-transmittable layers, and leave a blank in the position corresponding with button in light non-transmittable layers; Position corresponding with button on the circuit board offers light-conductive hole, is provided with an astigmatic type backlight behind the circuit board.
As light-emitting device, its light is comparatively even with astigmatic type backlight for the utility model; In use, the light-conductive hole of the light transmission circuit board that astigmatic type backlight is sent and the position of leaving a blank of panel present a contrast between hyaline layer and opaque layer, thereby can form luminous literal and pattern.
The utility model has reduced intermediate link owing to directly be close to induction panel to the induction pcb board, thereby sensitive more stable aspect induction; And, since light source needn't and panel between space out, its integral thickness is significantly reduced, for obtaining important breakthrough in the lightening aspect of product; Simultaneously, used the use of astigmatic type backlight, can make as key panel light source led lamp and significantly reduce, not only provided cost savings, and made product energy-conserving and environment-protective more; In addition, this touch key-press with compare as the touch key-press of light source with LED, light is softer evenly.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is done further detailed description.
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model front view.
Fig. 3 is the utility model end view.
Embodiment
Referring to accompanying drawing.Circuit board 2 after present embodiment comprises panel 1 and is arranged on panel 1, and be arranged on the astigmatic type backlight 4 behind the circuit board 2.Said panel 1 adopts light transmissive material to process, and its surperficial silk-screen has light non-transmittable layers 5, and in light non-transmittable layers, 5 leaves a blank with button 3 corresponding positions.Offer second light-conductive hole 6 with button 3 corresponding positions on the said circuit board 2; Circuit board 2 fronts are provided with key induced district 8 around being positioned at second light-conductive hole 6.
As light-emitting device, its light is comparatively even with astigmatic type backlight 4 for present embodiment; In use, second light-conductive hole 6 of the light transmission circuit board 2 that astigmatic type backlight 4 is sent and the position of leaving a blank of panel 1 present a contrast between the hyaline layer 7 of panel 1 and opaque layer 5, thereby can on panel 1, form luminous button 3.
Claims (1)
1. touch button device, the circuit board after comprising panel and being arranged on panel is characterized in that: panel adopts light transmissive material to process, and silk-screen has light non-transmittable layers, and leave a blank in the position corresponding with button in light non-transmittable layers; Position corresponding with button on the circuit board offers light-conductive hole, is provided with an astigmatic type backlight behind the circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200230902U CN202395748U (en) | 2012-01-18 | 2012-01-18 | Touch key device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200230902U CN202395748U (en) | 2012-01-18 | 2012-01-18 | Touch key device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202395748U true CN202395748U (en) | 2012-08-22 |
Family
ID=46670647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200230902U Expired - Fee Related CN202395748U (en) | 2012-01-18 | 2012-01-18 | Touch key device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202395748U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865513A (en) * | 2012-09-18 | 2013-01-09 | 上海华勤通讯技术有限公司 | Touch key lighting device |
| CN103051318A (en) * | 2012-12-12 | 2013-04-17 | 厦门松霖卫厨有限公司 | Infrared touch key device for water outlet mechanism |
| CN105679581A (en) * | 2016-01-05 | 2016-06-15 | 中山市卓梅尼控制技术有限公司 | Touch key device |
-
2012
- 2012-01-18 CN CN2012200230902U patent/CN202395748U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865513A (en) * | 2012-09-18 | 2013-01-09 | 上海华勤通讯技术有限公司 | Touch key lighting device |
| CN102865513B (en) * | 2012-09-18 | 2015-09-09 | 上海华勤通讯技术有限公司 | Touch controlled key lighting device |
| CN103051318A (en) * | 2012-12-12 | 2013-04-17 | 厦门松霖卫厨有限公司 | Infrared touch key device for water outlet mechanism |
| CN105679581A (en) * | 2016-01-05 | 2016-06-15 | 中山市卓梅尼控制技术有限公司 | Touch key device |
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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: 20120822 Termination date: 20180118 |