CN202404524U - Pressing and sensing structure of touch control keyboard - Google Patents
Pressing and sensing structure of touch control keyboard Download PDFInfo
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- CN202404524U CN202404524U CN2011203255485U CN201120325548U CN202404524U CN 202404524 U CN202404524 U CN 202404524U CN 2011203255485 U CN2011203255485 U CN 2011203255485U CN 201120325548 U CN201120325548 U CN 201120325548U CN 202404524 U CN202404524 U CN 202404524U
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Abstract
Provided is a pressing and sensing structure of a touch control keyboard, comprising a piezoelectric type touch control plate and a piezoelectric type vibrating module. The piezoelectric type touch control plate comprises a lower substrate made from plastic materials, a second conducting layer superposed on the lower substrate and a plurality of pressing structures arranged on the second conducting layer at intervals. The pressing structures all have sensing layers, contact layers and connection layers. The sensing layer is superposed on the second conducting layer. The contact layer is superposed on the sensing layer and is made from piezoresistive materials or piezoelectric materials. The connection layer is superposed on the contact layer. The piezoelectric type touch control plate also comprises a first conducting layer arranged on the pressing structure and an upper substrate which is made from plastic materials and is superposed on the first conducting layer. The piezoelectric type vibrating module comprises a micro-control unit, a converter and at least one piezoelectric type vibrator. The piezoelectric type vibrating module is electrically connected to the piezoelectric type touch control plate. When resistance value or voltage, current value in the contact layer of the pressing structure exceeds the set threshold value, a button signal and a feedback signal are generated and a prompt function via vibration can be achieved.
Description
Technical field
The utility model relates to a kind of sensing structure of keyboard, is meant that especially a kind of sensing of pushing of touch control keyboard of tool piezoelectric type vibration module is constructed.
Background technology
In recent years, Trackpad and Touch Screen have been widely used in electronic products such as mobile phone, computer as the instruction input tool.With the Touch Screen is example, and the user can use this Touch Screen of hand contact with input instruction easily.In addition, be example with the Trackpad that is installed on the keyboard, the user can touch Trackpad or slip in the above with finger, with the mode of similar mouse action, sends operational order to computer.
Trackpad and Touch Screen have polytypes such as resistance-type, condenser type, ultrasonic formula and infrared-type usually, and wherein the product with resistor type touch control plate is maximum again, and the design of resistor type touch control plate mainly can be divided into four-wire type, five-line, eight line formulas again.And the four-wire type Trackpad is because cost and technological layer favorable factor such as maturation comparatively; Almost be the most basic production specifications of all Trackpad dealers, its basic framework is an indium tin oxide-coated glass (Indium Tin Oxide Glass, ITO Glass); One conductive film (ITO Film); Generally speaking, equal use+5V voltage after indium tin oxide-coated glass and the conductive film conducting, and clearance for insulation (Spacer) between the two; Its purpose is indium tin oxide-coated glass and conductive film are supported and separate, and produces the false touch action because of conducting causes short circuit when avoiding no touch.
And general electric resistance touch-control panel is to utilize to be separately positioned on first sensed layer of upper substrate (comprising first conductive layer) and to be arranged on contactless and unsettled structure between infrabasal plate second sensed layer of (comprising second conductive layer); When the user pushes; First sensed layer is contacted with second sensed layer, just can produce signal and carry out subsequent action for the micro-control unit, if too for a short time first sensed layer and second sensed layer of causing of the application of force of pushing do not touch; Just can't send signal and give the micro-control unit; Cause the phenomenon of attonity to take place, and do not feed back signal to Vib. producing the prompting vibration, the user may think that contact panel has problems or loose contact etc.; Can think that as far as the user product has problem, also impaired easily on goodwill as far as manufacturer.
In view of this; This case inventor with its applied for and through the novel patent of TaiWan, China that TaiWan, China Wise property office checks and approves serve as for M395206 number the basis and be engaged in for many years computor-keyboard manufacturing and the design practical experience; And the active research improvement; And through repeatedly sample making and test, and then the above-mentioned shortcoming of the existing keyboard of concrete improvement, cause completion the utility model eventually.
The utility model content
Therefore; In order to address the above problem; The utility model purpose is to be to provide a kind of middle layer with pressure drag material or piezoelectric to support as first conductive layer and second conductive layer are directly carried out interlayer; And push signal so as to sending, push the back and do not have the situation of touching feedback signal and do not have, to promote the result of use of touch keyboard.
To achieve these goals, the utility model proposes a kind of sensing of pushing of touch control keyboard and constructs, and it comprises a piezoelectric type Trackpad and a piezoelectric type vibration module, and wherein: this piezoelectric type Trackpad comprises an infrabasal plate, and it is that plastic material is made; One second conductive layer is stacked on this infrabasal plate; Some pressing structures; Be laid in spaced reciprocally on this second conductive layer; Respectively this pressing structure has a sensed layer, a contact layer and an articulamentum, and this sensed layer is stacked on this second conductive layer, and this contact layer is stacked on this sensed layer; And this contact layer is made by pressure drag material or piezoelectric, and this articulamentum is stacked on this contact layer; One first conductive layer is arranged on this pressing structure; And a upper substrate, it is made by plastic material, and is stacked on this first conductive layer; And this piezoelectric type vibration module comprises a micro-control unit, a converter and at least one piezoelectric vibrator, and piezoelectric type Trackpad is electric joins for this piezoelectric type vibration module and this.
As preferably, behind the electric signal of this this piezoelectric type Trackpad of micro-control unit reception, start this piezoelectric vibrator through this converter.
As preferably, this piezoelectric vibrator inside has a piezoelectric type vibrating reed.
As preferably, the sensing structure of pushing of this touch control keyboard also comprises plurality of gaps, and it is arranged on respectively between this pressing structure respectively, and is stacked on this second conductive layer, and respectively this gap is through a frame glue-line and be connected with this first conductive layer.
As preferably, the sensing structure of pushing of this touch control keyboard also has a base plate, and it is stacked in this piezoelectric type Trackpad bottom, and this base plate is used to assemble this piezoelectric type vibration module.
As preferably, the sensing structure of pushing of this touch control keyboard also comprises a printed layers, and it is arranged on this upper substrate, is printed with some keyboard symbols or numeral on this printed layers.
As preferably, respectively this symbol or the corresponding one or more pressing structure of numeral position are provided with.
As preferably, the plastic material of this upper substrate and this infrabasal plate is polyethylene terephthalate (PET).
As preferably, this sensed layer is made by the sensing material.
The utlity model has following beneficial effect:
1, the direct direct input information of the virtual key on contact panel of user need not to connect general input keyboard again, has dwindled overall volume;
2, with in the existing electric resistance touch-control panel compare for non-contacting hanging structure between two sensed layer; Pressing structure in the piezoelectric type Trackpad of pushing the sensing structure of the utility model touch control keyboard is for directly to contact and to support with first conductive layer and second conductive layer; So can not use or use a spot of gap to carry out the support between upper substrate and the infrabasal plate; So as to reducing cost; And can the person of avoiding the use of cause the situation of attonity to take place because of the application of force is too small, can also reach the effect of the vibration prompt signal of pushing touch control keyboard.
Description of drawings
Fig. 1 is the three-dimensional exploded view of pushing the sensing structure of pushing the sensing structure of the utility model touch control keyboard.
Fig. 2 is that the sensing of pushing of pushing the sensing structure of the utility model touch control keyboard is constructed along the cut-open view of the A-A hatching line of Fig. 1.
Fig. 3 is the block scheme of the micro-control cell processing feedback signal of pushing the sensing structure of the utility model touch control keyboard.
Fig. 4 is the pressed state cut-open view that the utility model presses on the corresponding pressing structure with it of single keyboard of upper substrate printed layers.
Fig. 5 is the pressed state cut-open view that the utility model presses on single keyboard corresponding a plurality of pressing structures with it in the upper substrate printed layers.
Main description of reference numerals
1 piezoelectric type Trackpad
2 infrabasal plates
3 second conductive layers
4 pressing structures
41 sensed layer
42 contact layers
43 articulamentums
5 first conductive layers
6 upper substrates
7 piezoelectric type vibration modules
71 micro-control unit
72 converters
73 piezoelectric vibrators
731 piezoelectric type vibrating reeds
80 base plates
91 gaps
92 frame glue-lines
Embodiment
Embodiment to the utility model elaborates below in conjunction with accompanying drawing:
Like Fig. 1 and shown in Figure 2, wherein, Fig. 1 is the stereo appearance figure of pushing the sensing structure of the utility model touch control keyboard, and Fig. 2 is that the sensing of pushing of the utility model touch control keyboard is constructed from the cut-open view of the A-A hatching line of Fig. 1.
The sensing structure of pushing of the touch control keyboard of the utility model comprises a piezoelectric type Trackpad 1 and a piezoelectric type vibration module 7, wherein:
This piezoelectric type Trackpad 1 comprises an infrabasal plate 2, one second conductive layer 3, some pressing structures 4, one first conductive layer 5 and a upper substrate 6.
This infrabasal plate 2 is that plastic material is made, for example the polyethylene terephthalate (Polyethylene Terephthalate, PET), but not as limit; And this second conductive layer 3 is stacked on this infrabasal plate 2.
Respectively this pressing structure 4 is laid on this second conductive layer 3 spaced reciprocally; And have a sensed layer 41, a contact layer 42 and an articulamentum 43, wherein, this sensed layer 41 is made by sensing material (like conductor, semiconductor etc.); And be stacked on this second conductive layer 3; This contact layer 42 is stacked on this sensed layer 41, and this contact layer 42 is made by pressure drag material or piezoelectric, and this articulamentum 43 is stacked on this contact layer 42.
Owing to this contact layer 42 is to be processed by pressure drag material to have piezoresistive effect; Promptly refer to when these contact layer 42 sensing components receive ambient pressure and are applied to it; Its resistance value can change thereupon, and especially when with semiconductor material during as the sensing component material, change in resistance is more remarkable than other material; In addition, when this contact layer 42 was processed by piezoelectric, the characteristic of piezoelectric belonged to the phenomenon that a kind of mechanical energy and electric energy exchange for having piezoelectric effect (piexoelectrics); And piezoelectric has piezoelectric effect is because of specific arrangement mode between atom in the lattice, makes material that the effect of stress field and field coupled arranged, and piezoelectric effect has two kinds; Be direct piezo electric effect (direct piezoelectric effect) and the contrary effect (converse piezoelectric effect) of pressing; Wherein, direct piezo electric effect is to convert mechanical energy into electric energy, when piezoelectric is imposed physical pressure; Electric dipole moment in the material bodies can shorten because of compression; This moment, piezoelectric produced positive and negative charge to maintain the original state for resisting this variation meeting at material surface, promptly produced voltage or current signal, and the utility model promptly utilizes this kind principle; And the contrary effect of pressing transfers electric energy to mechanical energy, and when apply electric field (voltage) in piezoelectric material surface, electric dipole moment can be elongated during because of electric field action, and piezoelectric extends along direction of an electric field for opposing changes.
First conductive layer 5 is arranged on all pressing structures 4, and the material of upper substrate 6 is identical with infrabasal plate 2, is made by the plastic material like PET, and is stacked on first conductive layer 5.
In addition; More can a stacked printed layers (not shown) on this upper substrate 6, be printed with some keyboard letter characters and numeral, in order to adapt to different users's finger size; Each button letter character and numeral are provided with for corresponding single pressing structure 4; Or corresponding a plurality of pressing structure 4 and being provided with, meaning is single button letter character or the corresponding pressing structure 4 with it of numeral, forms to represent its symbol or digital virtual key; Or single button letter character or numeral with it corresponding a plurality of pressing structures 4, be its symbol of representative or digital virtual key.
For making the spacing between this upper substrate 6 and the infrabasal plate 2 can be more firm; Therefore the piezoelectric type Trackpad 1 of pushing the sensing structure of the utility model touch control keyboard also comprises plurality of gaps (spacer) 91; It is arranged on respectively between this pressing structure 4 respectively; And be stacked on this second conductive layer 3, respectively this gap 91 is to be connected with this first conductive layer 5 through a frame glue-line 92.
And this piezoelectric type vibration module 7 comprises a micro-control unit (MCU-micro control unit) 71, one converter (inverter) 72 and at least one piezoelectric vibrator 73; This piezoelectric type vibration module 7 and this 1 electric joining of piezoelectric type Trackpad; And this piezoelectric type vibration module 7 is to receive the signal of handling this piezoelectric type Trackpad 1 through this micro-control unit 71, and via after 72 pairs of signal voltage frequency modulatings processing of this converter, and then start this piezoelectric vibrator 73; These piezoelectric vibrator 73 inside have a piezoelectric type vibrating reed 731; After receiving voltage signal, can stretch and shrink because of piezoelectric effect makes this piezoelectric type vibrating reed 731 produce mechanically deform, characteristic makes this piezoelectric type vibrating reed 731 produce vibration whereby; Make the user after pushing keyboard; With the feedback vibration of experiencing this piezoelectric vibrator 73, in addition, this piezoelectric type Trackpad 1 bottom also is stacked with a base plate 80; The appropriate position of this base plate 80 can supply 7 groups of this piezoelectric type vibration modules to establish and fixing, and can provide this piezoelectric type Trackpad 1 to support and the effect of protection.
Please refer to Fig. 3, the sensing structure of pushing of its expression the utility model touch control keyboard passes through the block scheme that feedback signals are handled in a micro-control unit 71; Sensed layer 41 in this pressing structure 4 can electrically connect a micro-control unit 71; And this micro-control unit 71 electrically connects the converter 72 of signal; This converter 72 electrically connects these piezoelectric vibrators 73, and then this micro-control unit 71 passes through these converters 72 and this piezoelectric vibrator 73 of may command startup, makes when pushing keyboard at every turn; Can vibrative effect, its detail operations will be described in detail hereinafter.
Like Fig. 4 and shown in Figure 5; Wherein, Fig. 4 is the cut-open view of the utility model when forcing in the corresponding pressing structure 4 with it of the single symbolic number keyboard of these upper substrate 6 printed layers, Fig. 5 be the utility model force in these upper substrate 6 printed layers single symbolic number keyboard with it cut-open view during corresponding a plurality of pressing structure 4.
When the user forces in the virtual key of single symbol or the corresponding pressing structure 4 with it of individual digit of these upper substrate 6 printed layers with finger presses (as shown in Figure 4); Because of this contact layer 42 is compressed by the application of force; With this contact layer 42 is that pressure drag material is an example; Then the resistance value of this contact layer 42 can change to some extent; And this sensed layer 41 can sense the state that the pressure drag of these contact layer 42 resistance values changes; Then can transmit corresponding push button signalling to a processor or a host computer (not shown) when setting threshold values when it surpasses, and the pressure drag of its resistance value changes threshold values and can be set by the software adjustment of processor, with the power sense of touch demand of the finger application of force that adapts to the user; In addition; When surpassing, it then can produce a feedback signal (as shown in Figure 3) when setting threshold values; And send a signal to this micro-control unit 71 of this piezoelectric type vibration module 7; And start this piezoelectric vibrator 73 through these converter 72 switching signals with control by this micro-control unit 71, make in this piezoelectric vibrator 73 these piezoelectric type vibrating reeds 731 vibrations and produce vibrating effect, and then reach the effect of vibration prompt transmission push button signalling.
Identical ground; When the user forces in the virtual key of single symbol in the printed layers or the corresponding a plurality of pressing structures 4 with it of individual digit with finger presses (as shown in Figure 5); Because of a plurality of contact layers 42 are compressed by the application of force; With contact layer 42 is that pressure drag material is an example, and then the resistance value of contact layer 42 can change to some extent, and this sensed layer 41 can sense the state that the pressure drag of these a plurality of contact layer 42 resistance values changes; Then produce feedback signal when it surpasses when setting threshold values, and then can send the vibration prompt signal of pushing shake-up.
Therefore, by said structure, the user is the direct input information of the virtual key on contact panel directly, need not to connect general input keyboard, to dwindle overall volume again; And with compare for non-contacting hanging structure between two sensed layer in the existing electric resistance touch-control panel; Pressing structure 4 in the piezoelectric type Trackpad 1 of pushing the sensing structure of the utility model touch control keyboard is for directly to contact and to support with first conductive layer 5 and second conductive layer 3; So the support that can not use or use a spot of gap 91 to carry out between upper substrate 6 and the infrabasal plate 2; Use and reduce cost; And can the person of avoiding the use of cause the situation of attonity to take place because of the application of force is too small, can also reach the effect of the vibration prompt signal of pushing touch control keyboard.
The above embodiment is in order to explanation the utility model, be not in order to restriction the utility model, so the displacement of the change of numerical value or equivalent elements must belong to the category of the utility model.
Claims (8)
1. the sensing of pushing of a touch control keyboard is constructed, and comprises a piezoelectric type Trackpad and a piezoelectric type vibration module, it is characterized in that:
This piezoelectric type Trackpad comprises:
One infrabasal plate, for plastic material made;
One second conductive layer is stacked on this infrabasal plate;
Some pressing structures; Be laid in spaced reciprocally on this second conductive layer; Respectively this pressing structure has a sensed layer, a contact layer and an articulamentum, and this sensed layer is stacked on this second conductive layer, and this contact layer is stacked on this sensed layer; And this contact layer is made by pressure drag material or piezoelectric, and this articulamentum is stacked on this contact layer;
One first conductive layer is arranged on this pressing structure; And
One upper substrate, made by plastic material, and be stacked on this first conductive layer;
This piezoelectric type vibration module comprises: a micro-control unit, a converter and at least one piezoelectric vibrator, piezoelectric type Trackpad is electric joins for this piezoelectric type vibration module and this.
2. the sensing of pushing of touch control keyboard as claimed in claim 1 is constructed, and it is characterized in that this micro-control unit starts this piezoelectric vibrator through this converter after receiving the electric signal of this piezoelectric type Trackpad.
3. the sensing of pushing of touch control keyboard as claimed in claim 1 is constructed, and it is characterized in that this piezoelectric vibrator inside has a piezoelectric type vibrating reed.
4. the sensing of pushing of touch control keyboard as claimed in claim 1 is constructed; It is characterized in that also comprise plurality of gaps, it is arranged on respectively between this pressing structure respectively; And be stacked on this second conductive layer, respectively this gap is to be connected with this first conductive layer through a frame glue-line.
5. the sensing of pushing of touch control keyboard as claimed in claim 1 is constructed, and it is characterized in that, also have a base plate and be stacked in this piezoelectric type Trackpad bottom, and this base plate supplies this piezoelectric type vibration module of assembling.
6. the sensing of pushing of touch control keyboard as claimed in claim 1 is constructed, and it is characterized in that also comprise a printed layers, it is arranged on this upper substrate.
7. the sensing of pushing of touch control keyboard as claimed in claim 1 is constructed, and it is characterized in that the plastic material of this upper substrate and this infrabasal plate is the polyethylene terephthalate.
8. the sensing of pushing of touch control keyboard as claimed in claim 1 is constructed, and it is characterized in that this sensed layer is made by the sensing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203255485U CN202404524U (en) | 2011-08-31 | 2011-08-31 | Pressing and sensing structure of touch control keyboard |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203255485U CN202404524U (en) | 2011-08-31 | 2011-08-31 | Pressing and sensing structure of touch control keyboard |
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| Publication Number | Publication Date |
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| CN202404524U true CN202404524U (en) | 2012-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011203255485U Expired - Fee Related CN202404524U (en) | 2011-08-31 | 2011-08-31 | Pressing and sensing structure of touch control keyboard |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103354185A (en) * | 2013-07-16 | 2013-10-16 | 苏州达方电子有限公司 | Button structure |
| CN103793068A (en) * | 2014-01-29 | 2014-05-14 | 苏州达方电子有限公司 | Keyboard with key conduction force adjusted according to requirements of user and adjusting method thereof |
| CN104079284A (en) * | 2014-06-25 | 2014-10-01 | 上海斐讯数据通信技术有限公司 | Key module based on piezoresistive sensor and control method of key module |
| CN105874407A (en) * | 2013-12-31 | 2016-08-17 | 微软技术许可有限责任公司 | Haptic feedback for thin user interfaces |
| CN107422867A (en) * | 2017-04-13 | 2017-12-01 | 苏州攀特电陶科技股份有限公司 | Touch feedback keyboard, method and terminal |
| CN107943304A (en) * | 2017-10-26 | 2018-04-20 | 捷开通讯(深圳)有限公司 | Keyboard and the intelligent mobile terminal for being provided with keyboard |
| US10359848B2 (en) | 2013-12-31 | 2019-07-23 | Microsoft Technology Licensing, Llc | Input device haptics and pressure sensing |
| US10580596B2 (en) | 2016-12-27 | 2020-03-03 | Asustek Computer Inc. | Key structure |
| CN111726029A (en) * | 2019-03-22 | 2020-09-29 | 北京小米移动软件有限公司 | Terminal device and ceramic structural member |
-
2011
- 2011-08-31 CN CN2011203255485U patent/CN202404524U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103354185A (en) * | 2013-07-16 | 2013-10-16 | 苏州达方电子有限公司 | Button structure |
| CN103354185B (en) * | 2013-07-16 | 2015-10-21 | 苏州达方电子有限公司 | Press-key structure |
| CN105874407A (en) * | 2013-12-31 | 2016-08-17 | 微软技术许可有限责任公司 | Haptic feedback for thin user interfaces |
| US10359848B2 (en) | 2013-12-31 | 2019-07-23 | Microsoft Technology Licensing, Llc | Input device haptics and pressure sensing |
| CN103793068A (en) * | 2014-01-29 | 2014-05-14 | 苏州达方电子有限公司 | Keyboard with key conduction force adjusted according to requirements of user and adjusting method thereof |
| CN103793068B (en) * | 2014-01-29 | 2016-09-07 | 苏州达方电子有限公司 | Keyboard, the keyboard adjusting button conducting strength according to user and method of adjustment thereof |
| CN104079284A (en) * | 2014-06-25 | 2014-10-01 | 上海斐讯数据通信技术有限公司 | Key module based on piezoresistive sensor and control method of key module |
| US10580596B2 (en) | 2016-12-27 | 2020-03-03 | Asustek Computer Inc. | Key structure |
| CN107422867A (en) * | 2017-04-13 | 2017-12-01 | 苏州攀特电陶科技股份有限公司 | Touch feedback keyboard, method and terminal |
| CN107943304A (en) * | 2017-10-26 | 2018-04-20 | 捷开通讯(深圳)有限公司 | Keyboard and the intelligent mobile terminal for being provided with keyboard |
| CN107943304B (en) * | 2017-10-26 | 2020-07-10 | 捷开通讯(深圳)有限公司 | Keyboard and intelligent mobile terminal provided with same |
| CN111726029A (en) * | 2019-03-22 | 2020-09-29 | 北京小米移动软件有限公司 | Terminal device and ceramic structural member |
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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 |
Granted publication date: 20120829 Termination date: 20180831 |
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| CF01 | Termination of patent right due to non-payment of annual fee |