CN103226418B - With the capacitive type touch pad of keyswitch - Google Patents
With the capacitive type touch pad of keyswitch Download PDFInfo
- Publication number
- CN103226418B CN103226418B CN201310028792.9A CN201310028792A CN103226418B CN 103226418 B CN103226418 B CN 103226418B CN 201310028792 A CN201310028792 A CN 201310028792A CN 103226418 B CN103226418 B CN 103226418B
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- China
- Prior art keywords
- metal clips
- keyswitch
- touch pad
- capacitive type
- type touch
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Abstract
The invention provides the capacitive type touch pad of band keyswitch, the specific inductive capacity between touch sheet and detecting electrode can be improved, and the distance between touch sheet and detecting electrode can be remained constant.The keyswitch of the capacitive type touch pad with keyswitch becomes to be integrated with capacitive type touch pad, capacitive type touch pad has the multilayer printed board (42) being formed with detecting electrode (44), hard dielectric plate (46) and touch sheet (40), keyswitch has the metal clips switch (52) in the region that formation is identical with the region of the multilayer printed board (42) being formed with detecting electrode (44), corresponding with metal clips switch (52) and be shown in the surface of touch sheet (40) button and to be located between touch sheet (40) and metal clips (58) and the metal clips pressing metal clips (58) when the button is pressed by lower component (74).
Description
Technical field
The present invention relates to the input media of the input operation part forming electronic equipment, particularly relate to the touch pad of the band keyswitch of the structure that metal clips switch becomes to be integrated with capacitive type touch pad.
Background technology
Receiving trap multifunction play by electronic equipment, such as Digital Television in recent years, on the telepilot of input media playing receiving trap as such Digital Television, except keyswitch, also arranges capacitive type touch pad.
Keyswitch is used for channel selection, indicator operation etc., and capacitive type touch pad is used to indicate the input of device operation, text event detection, page layout switch etc.
At the operating surface of telepilot, keyswitch and capacitive type touch pad are not arranged in different regions, but the structure that keyswitch becomes to be integrated with capacitive type touch pad, namely, in the region of touch pad keyswitch is set.
Patent Document 1 discloses an example of the telepilot of the touch pad possessing such band keyswitch.The capacitive type touch pad of this remote control appliance standby band keyswitch, the capacitive type touch pad of this band keyswitch is configured to, and plays multiple metal clips switches of function, becomes to be integrated with capacitive type touch pad as the direction key switch of indicator and decision button switch.
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, load and be fixed with metal clips switch 12.Whole of such multilayer printed board 10 is covered by rubber sheet 14.The surrounding of rubber sheet 14 is bonded in multilayer printed board 10 by double sided adhesive tape 16.
On rubber sheet 14, be provided with the touch sheet 20 of the band button with button 18.Touch sheet 20 is for when the input of capacitive type touch pad and the thin plate of finger contact.Because needs push button 18, so touch sheet 20 is not be made up of the material of hard, but form by having flexible material.
Prior art document
Patent documentation 1: Japanese Unexamined Patent Publication 2011-82713 publication
The capacitive type touch pad of band keyswitch in the past disclosed in patent documentation 1 has following problem.
(1) accuracy of detection of capacitive type touch pad
In order to improve the accuracy of detection of capacitive type touch pad, the specific inductive capacity be formed between the detecting electrode of multilayer printed board 10 and touch sheet 20 is needed to be maintained high level, further, need the distance between detecting electrode and touch sheet 20 to remain constant.
For the capacitive type touch pad of band keyswitch in the past, between detecting electrode and touch sheet 20, be provided with rubber sheet 14.As the material of rubber sheet 14, the specific inductive capacity of preferred silicon rubber is low, be 3.0 ~ 3.5, in addition, in order to push button 18 well, need between metal clips switch 12 and touch sheet 20, arrange the space larger than the diameter of metal clips switch 12, thus the specific inductive capacity between detecting electrode and touch sheet 20 cannot be maintained high level.
In addition, for the capacitive type touch pad of band keyswitch in the past, during input, according to the contact condition of finger, press rubber sheet 14, thus the distance between detecting electrode and touch sheet 20 cannot be remained constant.
Therefore, the touch pad of the band keyswitch in the past problem that has accuracy of detection low.
(2) click feel during metal clips switch 12 is pressed
In the touch pad of band keyswitch in the past, when push button 18 time, press metal clips switch 12 across rubber sheet 14.Because rubber sheet 14 has elasticity, thus when push button 18 time, compared with directly pressing the situation of metal clips switch 12, have the problem that click feel reduces.
Summary of the invention
The object of the present invention is to provide the touch pad of the band keyswitch solving above-mentioned problem.
The present invention is the capacitive type touch pad of the band keyswitch that keyswitch becomes to be integrated with capacitive type touch pad, and described capacitive type touch pad has: printed base plate, and it is formed with detecting electrode; Hard dielectric plate, it is located on described detecting electrode; And elasticity touch sheet, it is located on described hard dielectric plate, and described keyswitch has: multiple metal clips switch, and they are formed in the region identical with the region of the described printed base plate being formed with described detecting electrode; Multiple button, they are answered with described multiple metal clips Switch Controller respectively, and are presented at the surface of described elasticity touch sheet; And multiple metal clips is by lower component, they are located between described elasticity touch sheet and metal clips, press the metal clips of corresponding metal clips switch when described button is pressed.
Effect of the present invention is as follows.
According to the capacitive type touch pad of band keyswitch of the present invention, owing to using hard dielectric plate between elasticity touch sheet and detecting electrode, so the specific inductive capacity between elasticity touch sheet and detecting electrode can be improved, and the distance between elasticity touch sheet and detecting electrode can be remained constant, thus obtain good accuracy of detection.
In addition, owing to utilizing metal clips by lower component to press metal clips, so compared with the capacitive type touch pad of band keyswitch in the past, good click feel can be obtained.
Accompanying drawing explanation
Fig. 1 is the vertical view of the telepilot of the touch pad of the band keyswitch possessed as the first embodiment of the present invention.
Fig. 2 is the cut-open view of the capacitance touch plate portion comprising a metal clips switch.
Fig. 3 is the vertical view of the conductive film pattern of the electrode of the multilayer printed board representing the telepilot being formed at Fig. 1.
Fig. 4 is the figure of state when representing the metal clips switch connection making Fig. 2.
Fig. 5 is that the dielectric plate of the touch pad of the band keyswitch represented as the second embodiment of the present invention, hinge, metal clips are by the partial top view of the structure of lower component and partial sectional view.
Fig. 6 is the figure of state when representing the metal clips switch connection making Fig. 5.
Fig. 7 is the cut-open view of the touch pad of band keyswitch in the past.
In 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 component, 84-hinge.
Embodiment
[the first embodiment]
The telepilot of the capacitive type touch pad of the band keyswitch possessed as the first embodiment of the present invention is described.The capacitive type touch pad of this band keyswitch is configured to, and is provided with the keyswitch for selecting channel in the region of the capacitive type touch pad 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 and capacitive type touch pad 36 are integrated structure.
(structure of capacitive type touch pad)
First, be described with reference to the structure of Fig. 2 to capacitive type touch pad 36.As shown in Figure 2, the capacitive type touch pad 36 hard dielectric plate 46 that there is touch sheet 40, be formed at the detecting electrode 44 on the surface of the multilayer printed board 42 of telepilot 30 and be located between touch sheet 40 and detecting electrode 44.
Touch sheet 40 is the thin plates for making finger contact carry out movement thereon, is made up of resilient material.The reason of resilient material is used to be, in order to press metal clips described later by lower component 74 from touch sheet 40, must elasticity be had.As an example of resilient material, use PET(polyethylene terephthalate) thin plate.This touch sheet 40 forms elasticity touch sheet of the present invention.
Detecting electrode 44 is for utilizing the change of electric capacity to detect the electrode of the position of the finger in touch sheet 40.By detecting the position of finger, the operation of indicator can be carried out.
Detecting electrode 44 utilizes the conducting film be made up of copper on the surface of multilayer printed board 42 to be formed.Fig. 3 represents an example of the conductive film pattern of detecting electrode 44.Detecting electrode 44 is formed by along the conductive film pattern extended in X direction in orthogonal X-direction, Y-direction and the conductive film pattern extended along Y-direction.
The conductive film pattern of Y-direction is configured to, with the conductive film pattern of the such corner of the mode arrange icons of connecting, and multiple pattern will connected between the conductive film pattern of adjacent corner by wiring (not shown) side by side in a juxtaposed fashion.
The conductive film pattern of X-direction is configured to, with the conductive film pattern of the such corner of the mode arrange icons of connecting, and in a juxtaposed fashion side by side multiple via through hole by the pattern that the wiring of lower floor will connect between the conductive film pattern of adjacent corner.Fig. 2 is the partial sectional view of X-direction, and through hole is represented by symbol 48, and the wiring of lower floor is represented by symbol 50.
Hard dielectric plate 46 is for keeping the distance between touch sheet 40 and detecting electrode 44 and guaranteeing the parts of the specific inductive capacity between touch sheet 40 and detecting electrode 44.Therefore, the large material of specific inductive capacity is preferably used to be formed.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 aluminium same degree.In addition, as the material of hard dielectric plate 46, except acryl resin, also can use specific inductive capacity be 2.4 ~ 4.1 ABS(acrylonitrile-butadiene-styrene (ABS)) other the 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 region of above-mentioned capacitive type touch pad 36 comprises channel selection keyswitch 34.Keyswitch is by the switch beaing button to input connection, cut off, and substantially, is made up of button and switch.
In the present embodiment, as switch, use the metal clips switch both known.As shown in Figure 2, metal clips switch 52 possesses being formed with the contre electrode 54 that the identical surface of the multilayer printed board 42 of detecting electrode 44 is formed and the surround electrode 56 surrounding contre electrode 54, also has the metal clips 58 electrically engaged with surround electrode 56.As shown in Figure 3, these contre electrodes 54 and surround electrode 56 are formed in the region being formed with detecting electrode 44 of capacitive type touch pad 36.Therefore, in the forming section of contre electrode 54 and surround electrode 56, the conducting film of detecting electrode 44 is not formed.
As shown in Figure 2, contre electrode 54 is connected with the wiring 62 at the back side being formed at multilayer printed board 42 via the through hole 60 of through multilayer printed board 42.In addition, surround electrode 56 is connected with the wiring 66 at the back side being formed at multilayer printed board 42 via the through hole 64 of through multilayer printed board 42.
If press the top of metal clips 58, then metal clips 58 bends, and top contacts with the contre electrode 54 on multilayer printed board 42.Its result, contre electrode 54 and surround electrode 56 are via metal clips 58 conducting.If remove the pressing of top for metal clips 58, then metal clips 58 restores to original shape, thus contre electrode 54 and surround electrode 56 become nonconducting state.In the present embodiment, in order to press metal clips 58, use the metal clips as separate part described later by lower component 74.
Hard dielectric plate 46 is provided with through hole 70 on the position corresponding with metal clips 58.The bottom of through hole 70 has the recess 72 of the dome shape holding metal clips 58.The reason that the recess 72 forming such dome shape holds metal clips 58 is, in the region beyond the part that metal clips 58 exists, and cannot Existential 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 detecting electrode 44 reduce, thus does not recommend.
Above-mentioned metal clips is made up of head 74a and foot 74b by lower component 74.Metal clips is that head 74a is plectane by an example of the shape of lower component 74, and foot 74b is cylinder.Like this by lower component identical with hard dielectric plate 46, made by acryl resin.This is the specific inductive capacity in order to improve between touch sheet 40 and detecting electrode 44.
At through hole 70, insert the foot 74b of metal clips by lower component 74, the front end of foot 74b configures in the mode abutted with the top of metal clips 58.In addition, the top of through hole 70 has the recess 76 of accommodation metal clips by the head 74a of lower component 74.
Under the state that metal clips abuts with the top of metal clips 58 by the front end of the foot 74b of lower component 74, between bottom surface 76a at recess 76 and the lower surface 74c of the head 74a by lower component, guarantee following distance, namely, as shown in Figure 4, when pressing metal clips by lower component 74 with finger 78 from touch sheet 40, metal clips 58 is bending and be pressed till contacting with contre electrode 54.
In addition, under the state that metal clips abuts with the top of metal clips 58 by the front end of the foot 74b of lower component 74, as shown in Figure 2, the upper surface of hard dielectric plate 46 and metal clips are positioned on same level by the upper surface of the head 74a of lower component 74.This is due to when utilizing capacitive type touch pad 36 to input, and when finger slides in touch sheet 40, the face of touch sheet 40 is preferably smooth.
When using channel selection keyswitch 34(with reference to Fig. 1) when selecting channel, touch sheet 40 also as display button display thin plate and play function.In this situation, be positioned at the surface portion of metal clips by the touch sheet 40 on the top of the head 74a of lower component 74, printing the button comprising channel number 1 ~ 12 as illustrated in fig. 1, and form button.In Fig. 1, button is printed as the numeral impaled by the frame of corner.
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 one structure both known of capacitive type touch pad.Such as, the X-direction of detecting electrode and the electrode pattern of Y-direction also can be formed on the multilayer printed board of double-layer structural.In this situation, the contre electrode 54 of metal clips switch 52 and surround electrode 56 are formed at the upper strata of detecting electrode.
[the second embodiment]
Next, the capacitive type touch pad of the band keyswitch as the second embodiment of the present invention is described.In the present embodiment, metal clips is not as in the first embodiment as separate part by lower component, but forms as one with hard dielectric plate, and is supported in dielectric plate by hinge, can press by lower component.Hinge itself also forms as one with dielectric plate.That is, hard dielectric plate, metal clips by lower component, hinge by hard dielectric and one-body molded.In addition, hard dielectric plate also can double as the housing of telepilot.
Fig. 5 represents integrated hard dielectric plate 80, the metal clips figure by the structure of lower component 82, hinge 84.For simplifying accompanying drawing, only local expression comprises two parts by lower component, omits the diagram of touch sheet.In addition, Fig. 5 (a) is partial top view, and Fig. 5 (b) is the A-A line cut-open view of Fig. 5 (a).
Metal clips is made up of head 82a and foot 82b by lower component 82.Metal clips is that head 82a is plectane by an example of the shape of lower component 82, and foot 82b is 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 component 82.The thickness of hinge 84 is little and bending and have elastic force, thus when push button (not shown) time, can easily press downwards.
The structure of multilayer printed board 42 is identical with the first embodiment.In addition, in Fig. 5 (b), for simplifying accompanying drawing, not shown detecting electrode.
Metal clips configures in the mode abutted with the top of metal clips 58 by the front end of the foot 82b of lower component 82.
Under the state that metal clips abuts with the top of metal clips 58 by the front end of the foot 82b of lower component 82, upper surface, the metal clips of hard dielectric plate 80 are positioned on same level by the upper surface of the head 82a of lower component 82 and the upper surface of hinge 84.This is identical with the first embodiment, and when utilizing capacitive type touch pad to input, when finger slides in touch sheet, the face of touch sheet is preferably smooth.
Fig. 6 is the partial sectional view of the state being provided with touch sheet 40.As shown in Figure 6, if press the button printed in touch sheet 40 with finger 78, then press the metal clips that supported by hinge 84 by lower component 82, thus make metal clips 58 bending and make metal clips switch connection.
According to the present embodiment, owing to metal clips not being set to separate part by lower component 82, thus the advantage that parts number of packages is few is had.
Industrial application feasibility
The capacitive type touch pad of band keyswitch of the present invention can not only utilize on a remote control, can also utilize on the input media of various electronic equipment.
Claims (4)
1. the capacitive type touch pad with keyswitch, its keyswitch becomes to be integrated with capacitive type touch pad, it is characterized in that,
Described capacitive type touch pad has:
Printed base plate, it is formed with detecting electrode;
Hard dielectric plate, it is located on described detecting electrode; And
Elasticity touch sheet, it is located on described hard dielectric plate,
Described keyswitch has:
Multiple metal clips switch, they are formed in the region identical with the region of the described printed base plate being formed with described detecting electrode, the metal clips that described metal clips switch possesses contre electrode and can bend and contact with contre electrode;
Multiple button, they are answered with described multiple metal clips Switch Controller respectively, and are presented at the surface of described elasticity touch sheet; And
Multiple metal clips is by lower component, and they are located between described elasticity touch sheet and described metal clips, presses 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 inserts described through hole by lower component, and is configured to abut with the top of 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 component.
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 component by hinge,
Described metal clips forms as one by lower component, described hinge and described hard dielectric plate,
Described metal clips is configured to abut with the top of described metal clips by lower component, when described button is pressed, presses described metal clips.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012014050A JP5482807B2 (en) | 2012-01-26 | 2012-01-26 | Capacitive touchpad with key switch |
| JP2012-014050 | 2012-01-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103226418A CN103226418A (en) | 2013-07-31 |
| CN103226418B true CN103226418B (en) | 2016-02-24 |
Family
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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) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3025217A1 (en) * | 2013-08-23 | 2016-06-01 | Tiyqmat Research LLC | Remote control device |
| US10804897B2 (en) | 2014-01-10 | 2020-10-13 | Touchplus Information Corp. | Touch-sensitive keypad control device |
| CN104780406A (en) * | 2014-01-10 | 2015-07-15 | 新益先创科技股份有限公司 | Control device |
| 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 |
| JP5968955B2 (en) * | 2014-06-24 | 2016-08-10 | レノボ・シンガポール・プライベート・リミテッド | Input device and electronic device |
| 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 |
| US9612703B2 (en) * | 2014-12-31 | 2017-04-04 | Synaptics Incorporated | Top mount clickpad module |
| CN105260019B (en) * | 2015-10-08 | 2019-04-23 | 广东欧珀移动通信有限公司 | A kind of mobile terminal and information processing method |
| 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 |
| CN107295281B (en) * | 2016-03-31 | 2021-04-06 | 海信视像科技股份有限公司 | Display apparatus and control method |
| CN107565945B (en) * | 2016-06-30 | 2020-12-08 | 原相科技股份有限公司 | Input device with key input and touch input and operation method thereof |
| 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 |
| CN110554539B (en) * | 2018-06-01 | 2022-07-01 | 山力科技有限公司 | Micro-switch array module |
| 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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| CN1702609A (en) * | 2004-05-24 | 2005-11-30 | 阿尔卑斯电气株式会社 | Input device |
| CN1881153A (en) * | 2005-06-15 | 2006-12-20 | 义隆电子股份有限公司 | Touch control panel supporting double-side operation |
| WO2011122352A1 (en) * | 2010-03-29 | 2011-10-06 | シャープ株式会社 | Display device, and manufacturing method of pressure detection device and display device |
| CN102221957A (en) * | 2010-04-16 | 2011-10-19 | 联想(北京)有限公司 | Electronic equipment and operation control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US7151528B2 (en) * | 1999-06-22 | 2006-12-19 | Cirque Corporation | System for disposing a proximity sensitive touchpad behind a mobile phone keypad |
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2012
- 2012-01-26 JP JP2012014050A patent/JP5482807B2/en not_active Expired - Fee Related
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- 2013-01-25 CN CN201310028792.9A patent/CN103226418B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1702609A (en) * | 2004-05-24 | 2005-11-30 | 阿尔卑斯电气株式会社 | Input device |
| CN1881153A (en) * | 2005-06-15 | 2006-12-20 | 义隆电子股份有限公司 | Touch control panel supporting double-side operation |
| WO2011122352A1 (en) * | 2010-03-29 | 2011-10-06 | シャープ株式会社 | Display device, and manufacturing method of pressure detection device and display device |
| CN102221957A (en) * | 2010-04-16 | 2011-10-19 | 联想(北京)有限公司 | Electronic equipment and operation control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5482807B2 (en) | 2014-05-07 |
| CN103226418A (en) | 2013-07-31 |
| JP2013152904A (en) | 2013-08-08 |
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