CN101556520A - Touch button device - Google Patents
Touch button device Download PDFInfo
- Publication number
- CN101556520A CN101556520A CNA2009103024473A CN200910302447A CN101556520A CN 101556520 A CN101556520 A CN 101556520A CN A2009103024473 A CNA2009103024473 A CN A2009103024473A CN 200910302447 A CN200910302447 A CN 200910302447A CN 101556520 A CN101556520 A CN 101556520A
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- circuit board
- touch
- button device
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- printed circuit
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Abstract
The invention relates to a touch button device which comprises a button panel, a printing circuit board, a plurality of touch bonding pads and a plurality of light sources. The button panel is arranged opposite to the printing circuit board which comprises a plurality of through holes; and the touch bonding pads are arranged between the button panel and the printing circuit board. The light sources are arranged on the surface of the printing circuit board, moreover, the button regional area which is lighten by each light source is between 25 square millimeter and 225 square millimeter. The light given out by the light sources is respectively irradiated on the button panel by the through holes. The detection sensitivity and stability of the touch button device are high.
Description
Technical field
The present invention relates to a kind of touch button device, especially a kind of capacitance type touch key device.
Background technology
Along with the development of touch technology, touch button device has been widely used in the fields such as plant equipment, electric equipment and household electrical appliance.In order to indicate the key-press status of button, can in touch button device, increase the key-press status pilot lamp usually.
Seeing also Fig. 1, is a kind of cross section structure synoptic diagram of prior art touch button device.This touch button device 1 comprises a key panel 11, a plurality of touch pad 12, a printed circuit board (PCB) 13 and a plurality of light source 14.This key panel 11 and these printed circuit board (PCB) 13 relative spacing settings.These a plurality of touch pads 12 and these a plurality of light sources 14 are located in this key panel 11 and this printed circuit board (PCB) 13, and wherein these a plurality of touch pads 12 close on the surface of this printed circuit board (PCB) 13 towards these key panel 11 1 sides.These a plurality of light sources 14 are located between this key panel 11 and this a plurality of touch pads 12.
Above-mentioned touch button device 1 is to utilize the capacity effect of this touch pad 12 to detect the touching of people's extraneous contacts such as finger to key panel 11.Usually, for capacitance type touch key, the influence of touch action to the capacitance size variation depended in the sensitivity of touch sensible, yet in this touch button device 1, this light source 14 is sandwiched between this touch pad 12 and this key panel 11, thereby make the distance between this touch pad 12 and this key panel 11 increase, cause this capacitance variations drop less, thereby it is relatively poor that 1 pair of this touch button device touches the detection sensitivity and the degree of stability of finger of key panel 11.
Summary of the invention
For solving the detection sensitivity and the relatively poor problem of degree of stability of prior art touch button device, be necessary to provide a kind of detection sensitivity and the higher touch button device of degree of stability.
A kind of touch button device, it comprises a key panel, a printed circuit board (PCB), a plurality of touch pad and a plurality of light source, this key panel and this printed circuit board (PCB) are oppositely arranged, this printed circuit board (PCB) comprises a plurality of through holes, these a plurality of touch pads are arranged between this key panel and this printed circuit board (PCB), these a plurality of light sources are arranged at the surface of this printed circuit board (PCB), and the key area area that each light source illuminated is between 25 square millimeters to 225 square millimeters.
Compared with prior art, the light source setting of touch button device of the present invention and this printed circuit board (PCB) deviate from a side of this key panel, therefore, there has not been the obstruct of light source between this touch pad and this key panel, make close together between this touch pad and this key panel, thereby, the easier finger that touches key panel that detects of this touch pad, therefore, the detection sensitivity of this touch button device and degree of stability are better.Simultaneously, key area area that each light source illuminates is set between 25 square millimeters to 225 square millimeters, realizes the large tracts of land uniformly light-emitting, make that the demonstration of this touch key-press is more directly perceived, hommization.
Description of drawings
Fig. 1 is the cross section structure synoptic diagram of a kind of touch button device of prior art.
Fig. 2 is the cross section structure synoptic diagram of a kind of better embodiment of touch button device of the present invention.
Fig. 3 is the planar structure synoptic diagram of touch button device shown in Figure 2.
Embodiment
Please consult Fig. 2 and Fig. 3 simultaneously, Fig. 2 is the cross section structure synoptic diagram of a kind of better embodiment of touch button device of the present invention, and Fig. 3 is the planar structure synoptic diagram of touch button device shown in Figure 2.The a plurality of key areas 21 of definition on this touch button device 2.A button (figure does not show) of this touch button device 2 is represented in each key area 21.
This touch button device 2 comprises a key panel 22, a plurality of touch pad 23, a printed circuit board (PCB) 24 and a plurality of light source 25.This key panel 22 and these printed circuit board (PCB) 24 relative spacing settings.These a plurality of touch pads 23 are located between this key panel 22 and this printed circuit board (PCB) 24, are electrically connected with this printed circuit board (PCB) 24 simultaneously.Each touches the wherein key area 21 that pad 23 correspondences are arranged on this touch button device 2.These a plurality of light sources 25 are arranged at the surface of this printed circuit board (PCB) 24 away from these key panel 22 1 sides, and are electrically connected with this printed circuit board (PCB) 24.
This key panel 22 comprises a transparent substrate 221 and a light shield layer 222, and this light shield layer 222 is arranged at the surface of this substrate 221 away from these printed circuit board (PCB) 24 sides.This light shield layer 222 is provided with a plurality of openings 223, and these a plurality of openings 223 are corresponding respectively with the button of this key area 21, that is, and and each opening 223 corresponding key area 21.Wherein when this light shield layer 222 of light directive, can directly pass through light that should opening 223 places.
This printed circuit board (PCB) 24 comprises a plurality of through holes 241.These a plurality of through holes 241 are respectively to should a plurality of key areas 21, wherein when this printed circuit board (PCB) 24 of light directive, can directly pass through light that should through hole 241 places.
These a plurality of touch pads 23 are arranged at this printed circuit board (PCB) 24 contiguous these key panel 22 1 side surfaces.Each touches pad 23 corresponding through holes 241 and is provided with.Specifically, this touch pad 23 is the conducting films around this through hole 241.The material of this conducting film can be any one in copper, aluminium or other conductive materials.
Each light source 25 comprises a luminescence unit 251 and a light guide sheet 252.This light guide sheet 252 is closed on these printed circuit board (PCB) 24 surfaces and is provided with, and this luminescence unit 251 closes on this light guide sheet 252 and is provided with, that is: this light guide sheet 252 is sandwiched between this printed circuit board (PCB) 24 and this luminescence unit 251.The light that this luminescence unit 251 sends incides this light guide sheet 252, light outgoing after these light guide sheet 252 homogenising.Each light source 25 corresponding through hole 241 is provided with, an also wherein touch pad 23 settings of correspondence of this light source 25 simultaneously, and all correspondence is arranged in these a plurality of key areas 21.The light that each light source 25 sends all can be by this corresponding through hole 241 and this light shield layer 222 opening 223 outgoing to illuminate corresponding key zone 21.Wherein this opening 223 is of a size of the square of 10 millimeters of the length of sides, and the key area area that each light source illuminated is realized the large tracts of land uniformly light-emitting between 25 square millimeters to 225 square millimeters.
The principle of work of this touch button device 2 is as follows:
When the user of this touch button device 2 touches opening 223 positions of light shield layer 222 on this key panel 22 with hand or other conductors, corresponding touch pad 23 detects this touch signal because of capacity effect, thereby this touch button device 2 detects the input of a key command.Simultaneously, the input of this key command with drive and this to detect the corresponding light source 25 of the touch pad 23 of touching luminous.The light that this light source 25 sends by this printed circuit board (PCB) 24 corresponding through hole 241 and opening 223 outgoing of this light shield layer 222 illuminating corresponding key zone 21, thereby indicate the key-press status of this button.
Compared with prior art, the light source 25 of touch button device 2 of the present invention is arranged at the side that this printed circuit board (PCB) 24 deviates from this key panel 22, therefore, this touches and omits the space of using this light source 25 between pad 23 and this key panel 22, make the distance between this touch pad 23 and this key panel 22 reduce, thereby, these touch pad 23 easier fingers that touch key panel 22 that detect, the detection sensitivity and the degree of stability that improve this touch button device 2 greatly are better.Simultaneously, when touch pad 23 detected touch signal, this light source 25 illuminated this key area 21 to indicate the key-press status of this key area 21.When a certain key area 21 is touched, corresponding light source 25 illuminates this key area 21, wherein key area 21 areas that illuminated of each light source 25 are between 25 square millimeters to 225 square millimeters, thereby key area 21 overlaps with the key-press status indication, thereby makes that the indication of key-press status is very directly perceived.
Yet, the present invention and to be limited to above-mentioned embodiment described, for example in the first embodiment, this this light source 25 can corresponding be embedded in the through hole 241 of this button circuit board 24; This touch button device 2 can also only define a key area 21, includes only 223, one of openings and touches 23, one through holes 241 of pad and a light source 25; These a plurality of touch pads 23 also can be made by transparent conductive material, it is arranged at the surface of these key panel 22 contiguous these printed circuit board (PCB)s 24, and this touch pad 23 covers the zone of this key area 21 in the surface projection of these key panel 22 contiguous these printed circuit board (PCB)s 24 fully.
Claims (10)
1. touch button device, it comprises a key panel, a printed circuit board (PCB), a plurality of touch pad and a plurality of light source, this key panel and this printed circuit board (PCB) are oppositely arranged, it is characterized in that: this printed circuit board (PCB) comprises a plurality of through holes, these a plurality of touch pads are arranged between this key panel and this printed circuit board (PCB), these a plurality of light sources are arranged at the side of this printed circuit board (PCB) away from this key panel, and each light source institute irradiated area is between 25 square millimeters to 225 square millimeters.
2. touch button device as claimed in claim 1 is characterized in that: a plurality of key areas of definition on this touch button device, these a plurality of touch pads correspondence respectively are arranged at this a plurality of key areas.
3. touch button device as claimed in claim 1 is characterized in that: these a plurality of light source correspondences are arranged at that this printed circuit board (PCB) deviates from the surface of this key panel and to should the through hole.
4. touch button device as claimed in claim 1 is characterized in that: these a plurality of light sources are embedded in the corresponding with it through hole.
5. as each described touch button device in the claim 1 to 4, it is characterized in that: each light source comprises a light guide sheet and a luminescence unit, and this light guide sheet is sandwiched between this printed circuit board (PCB) and this luminescence unit.
6. as each described touch button device in the claim 1 to 4, it is characterized in that: these a plurality of touch pads are arranged at this printed circuit board (PCB) surface of this key panel relatively.
7. touch button device as claimed in claim 6 is characterized in that: each touches pad around corresponding through hole setting.
8. as each described touch button device in the claim 1 to 4, it is characterized in that: this touch pad is to be made by transparent conductive material.
9. the touch button device described in claim 8 is characterized in that: this transparent conductive material is that in copper or the aluminium any one made.
10. touch button device as claimed in claim 2, it is characterized in that: this touch pad is to be made by transparent conductive material, it is arranged at the surface of contiguous this printed circuit board (PCB) of this key panel, and this touch pad covers the zone of this key area in the projection on the surface of contiguous this printed circuit board (PCB) of this key panel fully.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009103024473A CN101556520A (en) | 2009-05-19 | 2009-05-19 | Touch button device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009103024473A CN101556520A (en) | 2009-05-19 | 2009-05-19 | Touch button device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101556520A true CN101556520A (en) | 2009-10-14 |
Family
ID=41174647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009103024473A Pending CN101556520A (en) | 2009-05-19 | 2009-05-19 | Touch button device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101556520A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793369A (en) * | 2010-03-26 | 2010-08-04 | 四川长虹电器股份有限公司 | Backlight device of touch remote controller |
| CN102098036A (en) * | 2010-12-24 | 2011-06-15 | 深圳和而泰智能控制股份有限公司 | Capacitive touch key device and manufacturing method thereof |
| CN102281049A (en) * | 2010-06-10 | 2011-12-14 | 博西华电器（江苏）有限公司 | Calibration system and method of touch key |
| 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 |
| CN105320357A (en) * | 2015-11-25 | 2016-02-10 | 小米科技有限责任公司 | Touch panel as well as control method and device thereof |
| CN106814926A (en) * | 2015-11-30 | 2017-06-09 | 株式会社东海理化电机制作所 | Panel and touch pad |
| CN108852263A (en) * | 2017-05-10 | 2018-11-23 | 因德斯马特有限公司 | The electrostatic touch component of light source device for endoscope and the endoscopic system including it |
| CN110247649A (en) * | 2018-03-08 | 2019-09-17 | 佛山市顺德区美的电热电器制造有限公司 | Touch key-press structure and electric appliance |
| CN113778260A (en) * | 2021-03-30 | 2021-12-10 | 达运精密工业股份有限公司 | Touch indication cover plate and electronic device applying same |
-
2009
- 2009-05-19 CN CNA2009103024473A patent/CN101556520A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793369A (en) * | 2010-03-26 | 2010-08-04 | 四川长虹电器股份有限公司 | Backlight device of touch remote controller |
| CN102281049B (en) * | 2010-06-10 | 2016-07-13 | 博西华电器（江苏）有限公司 | The calibration system of touch-key and calibration steps |
| CN102281049A (en) * | 2010-06-10 | 2011-12-14 | 博西华电器（江苏）有限公司 | Calibration system and method of touch key |
| CN102098036A (en) * | 2010-12-24 | 2011-06-15 | 深圳和而泰智能控制股份有限公司 | Capacitive touch key device and manufacturing method thereof |
| 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 |
| WO2014090181A1 (en) * | 2012-12-12 | 2014-06-19 | 厦门松霖科技有限公司 | Infrared touch button device for use in water discharging mechanism |
| CN105320357A (en) * | 2015-11-25 | 2016-02-10 | 小米科技有限责任公司 | Touch panel as well as control method and device thereof |
| CN105320357B (en) * | 2015-11-25 | 2018-09-04 | 小米科技有限责任公司 | Touch panel and its control method, device |
| CN106814926A (en) * | 2015-11-30 | 2017-06-09 | 株式会社东海理化电机制作所 | Panel and touch pad |
| CN106814926B (en) * | 2015-11-30 | 2019-10-22 | 株式会社东海理化电机制作所 | Panel and touch tablet |
| CN108852263A (en) * | 2017-05-10 | 2018-11-23 | 因德斯马特有限公司 | The electrostatic touch component of light source device for endoscope and the endoscopic system including it |
| CN108852263B (en) * | 2017-05-10 | 2020-09-01 | 因德斯马特有限公司 | Electrostatic touch module of light source device for endoscope and endoscope system including the same |
| CN110247649A (en) * | 2018-03-08 | 2019-09-17 | 佛山市顺德区美的电热电器制造有限公司 | Touch key-press structure and electric appliance |
| CN113778260A (en) * | 2021-03-30 | 2021-12-10 | 达运精密工业股份有限公司 | Touch indication cover plate and electronic device applying same |
| CN113778260B (en) * | 2021-03-30 | 2024-05-10 | 达运精密工业股份有限公司 | Touch indication cover plate and electronic device using same |
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| PB01 | Publication | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20091014 |