CN103226418A - A capacitance touch panel equipped with a button switch - Google Patents
A capacitance touch panel equipped with a button switch Download PDFInfo
- Publication number
- CN103226418A CN103226418A CN2013100287929A CN201310028792A CN103226418A CN 103226418 A CN103226418 A CN 103226418A CN 2013100287929 A CN2013100287929 A CN 2013100287929A CN 201310028792 A CN201310028792 A CN 201310028792A CN 103226418 A CN103226418 A CN 103226418A
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- Prior art keywords
- metal clips
- keyswitch
- touch pad
- capacitive type
- detecting electrode
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Abstract
The invention provides a capacitance touch panel equipped with a button switch. The capacitance touch panel is capable of increasing the dielectric constant between a touch thin panel and a detecting electrode and is capable of maintaining the distance between the touch thin panel and the detecting electrode constant. A button switch and a capacitance touch panel of the capacitance touch panel equipped with a button switch are integrated into one body. The capacitance touch panel comprises a multilayer printing substrate (42) equipped with the detecting electrode (44), a hard dielectric board (46), and the touch thin panel (40). The button switch comprises a metallic spring switch (52) formed in an area where the multilayer printing substrate (42) equipped with the detecting electrode (44) is formed, a button which corresponds to the metallic spring switch (52) and which displays on the surface of the touch thin panel (40), and a metallic spring pressing component (74) which is arranged between the touch thin panel (40) and a metallic spring (58) and which presses down the metallic spring (58) when the button is pressed down.
Description
Technical field
The present invention relates to constitute the input media of the input operation part of electronic equipment, relate in particular to the touch pad of the band keyswitch of the structure that metal clips switch and capacitive type touch pad become one.
Background technology
Electronic equipment, for example in recent years Digital Television is play the receiving trap multifunction, on the telepilot of the input media of playing receiving trap as such Digital Television, except keyswitch, capacitive type touch pad is set also.
Keyswitch is used for channel selection, indicator operation etc., and capacitive type touch pad is used for the input of indicator operation, literal input, page switching etc.
At the operating surface of telepilot, keyswitch and capacitive type touch pad are not provided with in different zones, but the structure that keyswitch and capacitive type touch pad become one, promptly, in the zone of touch pad keyswitch is set.
An example of the telepilot of the touch pad that possesses such band keyswitch is disclosed in the patent documentation 1.This telepilot possesses the capacitive type touch pad of band keyswitch, the capacitive type touch pad of this band keyswitch constitutes, bring into play as the direction keyswitch of indicator and decision keyswitch function a plurality of metal clips switches, become one with capacitive type touch pad.
For the capacitive type touch pad of this band keyswitch, as shown in Figure 7, on multilayer printed board 10, be formed with touch pad detecting electrode (not shown), and on multilayer printed board 10, mounting also is fixed with metal clips switch 12.Whole of such multilayer printed board 10 covered by rubber sheet 14.Be bonded in multilayer printed board 10 by double sided adhesive tape 16 around the rubber sheet 14.
On rubber sheet 14, be provided with the touch sheet 20 of band button with button 18.Touch sheet 20 is to be used for when the input of capacitive type touch pad the thin plate that contacts with finger.Owing to need push button 18, do not constitute so touch sheet 20 is not a material by hard, but constitute by the rubber-like material.
The prior art document
Patent documentation 1: TOHKEMY 2011-82713 communique
The capacitive type touch pad of disclosed band keyswitch in the past has following problem in the patent documentation 1.
(1) accuracy of detection of capacitive type touch pad
In order to improve the accuracy of detection of capacitive type touch pad, needs will be formed at the detecting electrode of multilayer printed board 10 and the specific inductive capacity between the touch sheet 20 is maintained high level, and, need remain the distance between detecting electrode and the touch sheet 20 constant.
For the capacitive type touch pad of in the past band keyswitch, between detecting electrode and touch sheet 20, be provided with rubber sheet 14.As the material of rubber sheet 14 and the specific inductive capacity of preferred silicon rubber is low, be 3.0～3.5, in addition, in order to push button 18 well, the space bigger than the diameter of metal clips switch 12 need be set between metal clips switch 12 and touch sheet 20, thereby the specific inductive capacity between detecting electrode and the touch sheet 20 can't be maintained high level.
In addition, for the capacitive type touch pad of in the past band keyswitch, during input,, push rubber sheet 14, thereby can't remain the distance between detecting electrode and the touch sheet 20 constant according to the contact condition of finger.
Therefore, the touch pad of band keyswitch in the past has the low problem of accuracy of detection.
Click feel when (2) pressing metal clips switch 12
In the touch pad of band keyswitch in the past,, press metal clips switch 12 across rubber sheet 14 when pushing button 18 the time.Because rubber sheet 14 has elasticity,, the problem of click feel reduction is arranged so, compare with the situation of directly pressing metal clips switch 12 when pushing button 18 the time.
Summary of the invention
The object of the present invention is to provide the touch pad of the band keyswitch that solves above-mentioned problem.
The present invention is the capacitive type touch pad of the band keyswitch that becomes one of keyswitch and capacitive type touch pad, and described capacitive type touch pad has: printed base plate, and it is formed with detecting electrode; The hard dielectric plate, it is located on the described detecting electrode; And the elasticity touch sheet, it is located on the described hard dielectric plate, and described keyswitch has: a plurality of metal clips switches, they are formed in the regional identical zone with the described printed base plate that is formed with described detecting electrode; A plurality of buttons, they are corresponding with described a plurality of metal clips switches respectively, and are presented at the surface of described elasticity touch sheet; And a plurality of metal clips are by lower member, and they are located between described elasticity touch sheet and the metal clips, press the metal clips of corresponding metal clips switch when described button is pressed.
Effect of the present invention is as follows.
Capacitive type touch pad according to band keyswitch of the present invention, owing between elasticity touch sheet and detecting electrode, use the hard dielectric plate, so can improve the specific inductive capacity between elasticity touch sheet and the detecting electrode, and the distance between elasticity touch sheet and the detecting electrode can be remained constant, thereby obtain the good detection precision.
In addition, owing to utilize metal clips to press metal clips,, can access good click feel so compare with the capacitive type touch pad of in the past band keyswitch by lower member.
Description of drawings
Fig. 1 is the vertical view that possesses as the telepilot of the touch pad of the band keyswitch of first embodiment of the present invention.
Fig. 2 is the cut-open view that comprises the capacitance touch plate portion of a metal clips switch.
Fig. 3 is the vertical view of conductive film pattern of electrode of the multilayer printed board of the expression telepilot that is formed at Fig. 1.
Fig. 4 is the figure of the state of expression when making the metal clips switch connection of Fig. 2.
Fig. 5 is expression as the dielectric plate of the touch pad of the band keyswitch of second embodiment of the present invention, hinge, metal clips partial top view and the partial sectional view by the structure of lower member.
Fig. 6 is the figure of the state of expression when making the metal clips switch connection of Fig. 5.
Fig. 7 is the cut-open view of the touch pad of band keyswitch in the past.
Among the figure:
30-telepilot, the capacitive type touch pad of 32-band keyswitch, 34-channel selection keyswitch, 36-capacitive type touch pad, 40-touch sheet (elasticity touch sheet), 42-multilayer printed board, 44-detecting electrode, 46,80-hard dielectric plate, 52-metal clips switch, 54-contre electrode, 56-surround electrode, 58-metal clips, 70-through hole, 74,82-metal clips is by lower member, 84-hinge.
Embodiment
[first embodiment]
The telepilot that possesses as the capacitive type touch pad of the band keyswitch of first embodiment of the present invention is described.The capacitive type touch pad of this band keyswitch constitutes, and is provided with the keyswitch that is used to select channel in the zone of the capacitive type touch pad that is used for pilot guide.
As shown in Figure 1, this telepilot 30 has the capacitive type touch pad 32 of band keyswitch.In the capacitive type touch pad 32 of this band keyswitch, channel selection keyswitch 34 is a Construction integration with capacitive type touch pad 36.
(structure of capacitive type touch pad)
At first, with reference to Fig. 2 the structure of capacitive type touch pad 36 is described.As shown in Figure 2, capacitive type touch pad 36 have touch sheet 40, be formed at telepilot 30 multilayer printed board 42 the surface detecting electrode 44 and be located at touch sheet 40 and detecting electrode 44 between hard dielectric plate 46.
Detecting electrode 44 is to be used to utilize changes in capacitance to come the electrode of the position of the finger on the senses touch thin plate 40.By detecting the position of finger, can carry out the operation of indicator.
Detecting electrode 44 is to utilize the conducting film that is made of copper on the surface of multilayer printed board 42 to form.Fig. 3 represents an example of the conductive film pattern of detecting electrode 44.Detecting electrode 44 is by constituting with the conductive film pattern that extends along the Y direction along the directions X of quadrature, the conductive film pattern along the directions X extension in the Y direction.
The conductive film pattern of Y direction constitutes, with the four jiaos such conductive film pattern of mode arrange icons of series connection, and with mode arranged side by side side by side a plurality of by connect up (not shown) with the pattern that connects between four jiaos adjacent conductive film pattern.
The conductive film pattern of directions X constitutes, with the four jiaos such conductive film pattern of mode arrange icons of series connection, and with mode arranged side by side side by side a plurality of via through hole the wiring by lower floor with the pattern that connects between adjacent four jiaos conductive film pattern.Fig. 2 is the partial sectional view of directions X, and through hole is by symbol 48 expressions, and the wiring of lower floor is by symbol 50 expressions.
Hard dielectric plate 46 be used to keep the distance between touch sheet 40 and the detecting electrode 44 and guarantee touch sheet 40 and detecting electrode 44 between the parts of specific inductive capacity.Therefore, preferably use the big material of specific inductive capacity to form.As an example of such hard dielectric plate 46, use acrylic resin board.The specific inductive capacity of acryl resin is 2.7～4.5, and it has the hardness with the aluminium same degree.In addition, as the material of hard dielectric plate 46, except acryl resin, also can use specific inductive capacity is 2.4～4.1 ABS(acrylonitrile-butadiene-styrene (ABS)) other resin such as resin.
Such hard dielectric plate 46 is bonded in multilayer printed board 42 by double sided adhesive tape, but not shown to this.
(structure of channel selection keyswitch)
As shown in Figure 1, the zone of above-mentioned capacitive type touch pad 36 comprises channel selection keyswitch 34.Keyswitch is by beaing the switch that button is imported connection, cut off, basically, being made of button and switch.
In the present embodiment, as switch, use the metal clips switch of both having known.As shown in Figure 2, metal clips switch 52 possesses the contre electrode 54 that forms and surrounds the surround electrode 56 of contre electrode 54 on the identical surface of the multilayer printed board 42 that is formed with detecting electrode 44, also have with surround electrode 56 electric conductivity the metal clips 58 that engages.As shown in Figure 3, these contre electrodes 54 and surround electrode 56 form in the zone that is formed with detecting electrode 44 of capacitive type touch pad 36.Therefore, in the formation part of contre electrode 54 and surround electrode 56, do not form the conducting film of detecting electrode 44.
As shown in Figure 2, contre electrode 54 is connected with the wiring 62 at the back side that is formed at multilayer printed board 42 via the through hole 60 that connects multilayer printed board 42.In addition, surround electrode 56 is connected with the wiring 66 at the back side that is formed at multilayer printed board 42 via the through hole 64 that connects multilayer printed board 42.
If the top of pressing metal clips 58, then metal clips 58 bendings, and the top contacts with contre electrode 54 on the multilayer printed board 42.Its result, contre electrode 54 and surround electrode 56 are via metal clips 58 conductings.If remove at the pressing of the top of metal clips 58, then metal clips 58 restores to original shape, thereby contre electrode 54 becomes nonconducting state with surround electrode 56.In the present embodiment, in order to press metal clips 58, use the metal clips as separate part described later to press lower member 74.
Be provided with through hole 70 on the hard dielectric plate 46 and on the position corresponding with metal clips 58.The bottom of through hole 70 has the recess 72 of the dome shape that holds metal clips 58.The reason that the recess 72 that forms such dome shape holds metal clips 58 is, in the zone beyond the part that metal clips 58 exists, can't have the space between touch sheet 40 and detecting electrode 44.The existence in such space can make the specific inductive capacity between touch sheet 40 and the detecting electrode 44 reduce, thereby does not recommend.
Above-mentioned metal clips is made of head 74a and the 74b of foot by lower member 74.Metal clips by an example of the shape of lower member 74 is, head 74a is a plectane, and the 74b of foot is a cylinder.Like this by lower member identical with hard dielectric plate 46, make by acryl resin.This is in order to improve the specific inductive capacity between touch sheet 40 and the detecting electrode 44.
At through hole 70, insert the foot 74b of logical metal clips by lower member 74, the front end of the 74b of foot disposes in the mode with the top butt of metal clips 58.In addition, the top of through hole 70 has and holds the recess 76 of metal clips by the head 74a of lower member 74.
Under the state of metal clips by the top butt of the front end of the 74b of foot of lower member 74 and metal clips 58, between the bottom surface of recess 76 76a and lower surface 74c by the head 74a of lower member, guarantee following distance, promptly, as shown in Figure 4, when with finger 78 when touch sheet 40 is pressed metal clips by lower member 74, metal clips 58 is crooked and be pressed until with till contre electrode 54 contacts.
In addition, under the state of metal clips by the top butt of the front end of the 74b of foot of lower member 74 and metal clips 58, as shown in Figure 2, the upper surface of hard dielectric plate 46 and metal clips are positioned on the same level by the upper surface of the head 74a of lower member 74.This is because when utilizing capacitive type touch pad 36 to import, when finger slided on touch sheet 40, the face of touch sheet 40 was preferably smooth.
Using channel selection keyswitch 34(with reference to Fig. 1) to select under the situation of channel, touch sheet 40 is also brought into play function as the demonstration thin plate of display button.Under this situation, be positioned at the surface portion of metal clips, printing the button that comprises channel number 1～12 as illustrated in fig. 1, and constitute button by the touch sheet 40 on the top of the head 74a of lower member 74.Among Fig. 1, button is as the numeral that is impaled by four jiaos frame and print.
In addition, the structure of the detecting electrode 44 of above-mentioned present embodiment is an example, also can use the detecting electrode of any structure of both having known of capacitive type touch pad.For example, the electrode pattern of the directions X of detecting electrode and Y direction also can form on the multilayer printed board of double-layer structural.Under this situation, the contre electrode 54 of metal clips switch 52 and surround electrode 56 are formed at the upper strata of detecting electrode.
[second embodiment]
Next, the capacitive type touch pad as the band keyswitch of second embodiment of the present invention is described.In the present embodiment, metal clips by lower member be not as first embodiment as separate part, but form as one, and be supported in dielectric plate, so that can will press by lower member by hinge with the hard dielectric plate.Hinge itself also forms as one with dielectric plate.That is, hard dielectric plate, metal clips by lower member, hinge by the hard dielectric and one-body molded.In addition, the housing that the hard dielectric plate also can the double as telepilot.
Fig. 5 is expression integrated hard dielectric plate 80, the metal clips figure by the structure of lower member 82, hinge 84.For simplifying accompanying drawing, only local expression comprises two parts by lower member, omits the diagram of touch sheet.In addition, Fig. 5 (a) is a partial top view, and Fig. 5 (b) is the A-A line cut-open view of Fig. 5 (a).
Metal clips is made of head 82a and the 82b of foot by lower member 82.Metal clips by an example of the shape of lower member 82 is, head 82a is a plectane, and the 82b of foot is a cylinder.
As shown in Figure 5, metal clips is supported in hard dielectric plate 80 in both sides by hinge 84 by the head 82a of lower member 82.The thickness of hinge 84 is little and crooked and have elastic force, thereby when pushing button (not shown), can easily press downwards.
The structure of multilayer printed board 42 is identical with first embodiment.In addition, among Fig. 5 (b), for simplifying accompanying drawing, not shown detecting electrode.
Metal clips disposes in the mode with the top butt of metal clips 58 by the front end of the 82b of foot of lower member 82.
Under the state of metal clips by the top butt of the front end of the 82b of foot of lower member 82 and metal clips 58, the upper surface of hard dielectric plate 80, metal clips are positioned on the same level by the upper surface of the head 82a of lower member 82 and the upper surface of hinge 84.This is identical with first embodiment, and when utilizing capacitive type touch pad to import, when finger slided on touch sheet, the face of touch sheet was preferably smooth.
Fig. 6 is the partial sectional view that is provided with the state of touch sheet 40.As shown in Figure 6,, then press the metal clips that supported by hinge 84, thereby make metal clips 58 bendings and make the metal clips switch connection by lower member 82 if press on touch sheet 40 button of printing with finger 78.
According to present embodiment, owing to metal clips is not made as separate part by lower member 82, thus the few advantage of parts number of packages is arranged.
Industrial application feasibility
The capacitive type touch pad of band keyswitch of the present invention not only can utilize on telepilot, can also utilize on the input media of various electronic equipments.
Claims (4)
1. capacitive type touch pad with keyswitch, its keyswitch and capacitive type touch pad become one, it is characterized in that,
Described capacitive type touch pad has:
Printed base plate, it is formed with detecting electrode;
The hard dielectric plate, it is located on the described detecting electrode; And
The elasticity touch sheet, it is located on the described hard dielectric plate,
Described keyswitch has:
A plurality of metal clips switches, they are formed in the regional identical zone with the described printed base plate that is formed with described detecting electrode;
A plurality of buttons, they are corresponding with described a plurality of metal clips switches respectively, and are presented at the surface of described elasticity touch sheet; And
A plurality of metal clips are by lower member, and they are located between described elasticity touch sheet and the metal clips, press the metal clips of corresponding described metal clips switch when pressing described button.
2. the capacitive type touch pad of band keyswitch according to claim 1 is characterized in that,
Described hard dielectric plate has through hole,
Described metal clips is inserted logical described through hole by lower member, and is configured to the top butt with described metal clips, when described button is pressed, presses described metal clips.
3. the capacitive type touch pad of band keyswitch according to claim 2 is characterized in that,
Described hard dielectric plate and described metal clips are formed by acryl resin by lower member.
4. the capacitive type touch pad of band keyswitch according to claim 1 is characterized in that,
Described metal clips is supported in described hard dielectric plate by lower member by hinge,
Described metal clips forms as one by lower member, described hinge and described hard dielectric plate,
It is and the top butt of described metal clips when described button is pressed, to press described metal clips that described metal clips is pressed component configuration.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012-014050 | 2012-01-26 | ||
| JP2012014050A JP5482807B2 (en) | 2012-01-26 | 2012-01-26 | Capacitive touchpad with key switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103226418A true CN103226418A (en) | 2013-07-31 |
| CN103226418B CN103226418B (en) | 2016-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310028792.9A Expired - Fee Related CN103226418B (en) | 2012-01-26 | 2013-01-25 | With the capacitive type touch pad of keyswitch |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5482807B2 (en) |
| CN (1) | CN103226418B (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104217882A (en) * | 2014-09-26 | 2014-12-17 | 德清东胜电子有限公司 | Large button confirmation function structure of remote control |
| CN104777929A (en) * | 2014-01-10 | 2015-07-15 | 新益先创科技股份有限公司 | Control device |
| CN105260019A (en) * | 2015-10-08 | 2016-01-20 | 广东欧珀移动通信有限公司 | Mobile terminal and information processing method |
| CN105302356A (en) * | 2014-06-24 | 2016-02-03 | 联想（新加坡）私人有限公司 | Input device and electronic instrument thereof |
| CN105610424A (en) * | 2016-03-07 | 2016-05-25 | 广东美的厨房电器制造有限公司 | Capacitive button structure for household appliance and household appliance |
| CN105739752A (en) * | 2014-12-31 | 2016-07-06 | 辛纳普蒂克斯公司 | Top mount clickpad module |
| CN107295281A (en) * | 2016-03-31 | 2017-10-24 | 青岛海信电器股份有限公司 | Display device and control method |
| CN107565945A (en) * | 2016-06-30 | 2018-01-09 | 原相科技股份有限公司 | Input unit and its operation method with key-press input and touching input |
| CN107608552A (en) * | 2017-09-15 | 2018-01-19 | 信利光电股份有限公司 | A kind of touch-screen |
| CN108493025A (en) * | 2018-05-21 | 2018-09-04 | 深圳市志金电子有限公司 | A kind of touch base plate and preparation method thereof |
| CN109389816A (en) * | 2013-08-23 | 2019-02-26 | 苹果公司 | Remote control equipment |
| CN110554539A (en) * | 2018-06-01 | 2019-12-10 | 山力科技有限公司 | Micro-switch array module |
| US10804897B2 (en) | 2014-01-10 | 2020-10-13 | Touchplus Information Corp. | Touch-sensitive keypad control device |
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| JP6546778B2 (en) * | 2014-05-08 | 2019-07-17 | 新益先創科技股▲分▼有限公司 | Touch detection keypad control device |
| CN110401436A (en) * | 2019-07-25 | 2019-11-01 | 南京华睿川电子科技有限公司 | A kind of touch key-press plate and preparation method thereof |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109389816A (en) * | 2013-08-23 | 2019-02-26 | 苹果公司 | Remote control equipment |
| CN104777929A (en) * | 2014-01-10 | 2015-07-15 | 新益先创科技股份有限公司 | Control device |
| CN104780406A (en) * | 2014-01-10 | 2015-07-15 | 新益先创科技股份有限公司 | Control device |
| US10804897B2 (en) | 2014-01-10 | 2020-10-13 | Touchplus Information Corp. | Touch-sensitive keypad control device |
| CN105302356A (en) * | 2014-06-24 | 2016-02-03 | 联想（新加坡）私人有限公司 | Input device and electronic instrument thereof |
| CN105302356B (en) * | 2014-06-24 | 2018-11-02 | 联想（新加坡）私人有限公司 | Input unit and electronic equipment |
| CN104217882A (en) * | 2014-09-26 | 2014-12-17 | 德清东胜电子有限公司 | Large button confirmation function structure of remote control |
| CN105739752A (en) * | 2014-12-31 | 2016-07-06 | 辛纳普蒂克斯公司 | Top mount clickpad module |
| CN105739752B (en) * | 2014-12-31 | 2020-08-28 | 辛纳普蒂克斯公司 | Top mount clickplate module |
| CN105260019A (en) * | 2015-10-08 | 2016-01-20 | 广东欧珀移动通信有限公司 | Mobile terminal and information processing method |
| CN105610424A (en) * | 2016-03-07 | 2016-05-25 | 广东美的厨房电器制造有限公司 | Capacitive button structure for household appliance and household appliance |
| CN105610424B (en) * | 2016-03-07 | 2020-10-30 | 广东美的厨房电器制造有限公司 | Capacitive key structure of household appliance and household appliance |
| CN107295281A (en) * | 2016-03-31 | 2017-10-24 | 青岛海信电器股份有限公司 | Display device and control method |
| CN107565945A (en) * | 2016-06-30 | 2018-01-09 | 原相科技股份有限公司 | Input unit and its operation method with key-press input and touching input |
| CN107608552A (en) * | 2017-09-15 | 2018-01-19 | 信利光电股份有限公司 | A kind of touch-screen |
| CN108493025A (en) * | 2018-05-21 | 2018-09-04 | 深圳市志金电子有限公司 | A kind of touch base plate and preparation method thereof |
| CN110554539A (en) * | 2018-06-01 | 2019-12-10 | 山力科技有限公司 | Micro-switch array module |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5482807B2 (en) | 2014-05-07 |
| JP2013152904A (en) | 2013-08-08 |
| CN103226418B (en) | 2016-02-24 |
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