CN107612538A - Touch key-press and its method for waking up screen - Google Patents

Touch key-press and its method for waking up screen Download PDF

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Publication number
CN107612538A
CN107612538A CN201710724435.4A CN201710724435A CN107612538A CN 107612538 A CN107612538 A CN 107612538A CN 201710724435 A CN201710724435 A CN 201710724435A CN 107612538 A CN107612538 A CN 107612538A
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CN
China
Prior art keywords
electrode
press
touch key
touch
variable capacitance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710724435.4A
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Chinese (zh)
Inventor
钟钢
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Pixcir Microelectronics Co Ltd
Original Assignee
Suzhou Pixcir Microelectronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Suzhou Pixcir Microelectronics Co Ltd filed Critical Suzhou Pixcir Microelectronics Co Ltd
Priority to CN201710724435.4A priority Critical patent/CN107612538A/en
Publication of CN107612538A publication Critical patent/CN107612538A/en
Pending legal-status Critical Current

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Abstract

A kind of touch key-press, it includes substrate, touch sensible electrode in the substrate, the touch key-press also includes an at least variable capacitance mechanism, the variable capacitance mechanism is located at least side of the touch sensible electrode, and the touch sensible electrode and the variable capacitance mechanism are connected to control chip.Above-mentioned touch key-press is changed by the electric capacity of variable capacitance mechanism can realize the function of waking up screen, and can prevent from operating caused by false touch, and method is simple to operation.

Description

Touch key-press and its method for waking up screen
Technical field
The present invention relates to a kind of touch key-press, especially a kind of capacitance type touch key and its method for waking up screen.
Background technology
With the development of science and technology, touch key-press is more and more applied in handheld device, but existing hand-held Equipment still opens screen using power button, frequently using power key, easily causes the damage of power key, and be not easy to The use of user.
Therefore, it is necessary to provide a kind of touch key-press, the use for power button is reduced, while improve Consumer's Experience.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of touch key-press and its method for waking up screen, to reduce The frequent use of power button.
To achieve these goals, the present invention provides a kind of touch key-press, and it includes substrate, touching in the substrate Induction electrode is touched, the touch key-press also includes an at least variable capacitance mechanism, and the variable capacitance mechanism is located at the touch At least side of induction electrode, the touch sensible electrode and the variable capacitance mechanism are connected to control chip.
Further, the variable capacitance mechanism includes first electrode and second electrode, and the second electrode is relatively described First electrode is set, and the first electrode is connected to the control chip.
Further, the first electrode is arranged on substrate, and the relatively described first electrode of the second electrode is set, institute Stating second electrode can move relative to the first electrode so that the distance between the second electrode and the first electrode occur Change.
Further, the substrate includes mainboard and flexible part, and the flexible part is bent to the mainboard, relative to described Mainboard elasticity activity, the first electrode are located at the mainboard of the substrate, and the second electrode is located at the flexible part of the substrate.
Further, a cover plate is oppositely arranged with the substrate, and the first electrode is located at the substrate, second electricity Pole is arranged on the cover plate, and relatively described first electrode moves up and down.
Further, elastic mechanism or compliant mechanism are provided between the second electrode and the first electrode.
Further, compliant mechanism is provided between the second electrode and the first electrode, the second electrode is located at On the compliant mechanism.
Further, the first electrode and the second electrode include conductor layer and insulating barrier, and the insulating barrier covers Cover the conductor layer.
The method that above-mentioned touch key-press wakes up screen:When there is touch objects to press touch key-press, the control chip inspection The capacitance variations of the variable capacitance mechanism are surveyed, judge that the touch key-press is according to the capacitance variations of the variable capacitance mechanism It is no to be pressed, if it is determined that the touch key-press is pressed, then wake up screen.
Further, it is described judge whether the touch key-press is pressed method be:Detect the variable capacitance mechanism Whether the capacitance time that either capacitance variations value or variable capacitance mechanism electric capacity change reaches threshold value, if reaching Threshold value, then judge that the touch key-press is pressed.
Compared with prior art, touch key-press of the invention can realize the work(for waking up screen by variable capacitance mechanism Can, and can prevent from operating caused by false touch, method is simple to operation.
Brief description of the drawings
Fig. 1 is the schematic diagram of one embodiment of the invention.
Fig. 2 is the schematic diagram of touch key-press first electrode structure.
Fig. 3 is to change the obtained schematic diagram of embodiment based on Fig. 1 embodiments.
Fig. 4 is the schematic diagram of another embodiment of the present invention.
Fig. 5 is to change the obtained schematic diagram of embodiment based on Fig. 4 embodiments.
Fig. 6 is the schematic diagram of another embodiment of the present invention.
Fig. 7 is the schematic diagram of another touch key-press comprising compliant mechanism of the present invention.
Fig. 8 is the schematic flow sheet that touch key-press realizes the method for waking up screen.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples.
As shown in figs. 1-7, the touch key-press includes substrate 1, the touch sensible electrode 2 in the substrate 1 and can Become capacitor mechanism 3, the variable capacitance mechanism 3 is located at least side of the touch sensible electrode 2, the touch sensible electrode 2 and the variable capacitance mechanism 3 be electrically connected to control chip(It is not shown).The induction electrode 2 is used to sense whether user touches Touch key-press is touched, the variable capacitance mechanism 3 is used to detect whether user presses touch key-press, and the control chip is according to detection To information react.
The variable capacitance mechanism 3 includes first electrode 30 and second electrode 31, and the first electrode 30 is arranged at substrate 1 On, the relatively described first electrode 30 of the second electrode 31 is set, the second electrode 31 can relatively described first electrode 30 move It is dynamic so that the distance between described second electrode 31 and the first electrode 30 change.The first electrode 30 and described Second electrode 31 forms two pole plates of capacitance structure, is situated between the first electrode 30 and the second electrode 31 for insulation Matter.The first electrode 30 and the second electrode 31 include conductor layer 300 and insulating barrier 301, and the conductor layer 300 is located at On the substrate 1, the insulating barrier 301 is located in the conductor layer 300.
Touch key-press is further illustrated with reference to different preferred embodiments.
As shown in Figure 1-2, the touch key-press includes substrate 1, the touch sensible electrode 2 on substrate 1 and can power transformation Hold mechanism 3, the variable capacitance mechanism 3 is located at the side of the touch sensible electrode 2.The substrate 1 includes mainboard 10 and soft Property portion 11, the flexible part 11 bends to the mainboard 10, relative to the elasticity of mainboard 10 activity.The variable capacitance mechanism 3 include the first electrode 30 on the mainboard 10 and the second electrode 31 positioned at the flexible part 11, the first electrode 30 it is corresponding with the second electrode 31 on the flexible part 11 in the position of the mainboard 10.The first electrode 30 and the second electrode 31 include conductive layer 300 and insulating barrier 301, the conductive layer 300 is layed on the substrate 1, The insulating barrier 301 is layed on the conductive layer 300.When user presses touch key-press, the quilt of flexible part 11 of the substrate 1 Press, drive the second electrode 31 of the flexible part 11 to be moved towards the first electrode 30, the second electrode 31 and described The distance between first electrode 30 changes so that the capacitance of the variable capacitance mechanism changes.When user unclamps the touch During button, the flexible part rebounds be pressed before the distance between position, the second electrode 31 and the first electrode 30 The numerical value also returned to before pressing.
The quantity of the variable capacitance mechanism 3 is not limited to one, as shown in figure 3, the substrate 1 includes mainboard 10 and is located at Two flexible parts 11 of the homonymy of mainboard 10, each include a second electrode 31, the first electrode on the flexible part 11 30 are arranged at relative to the second electrode 31 on the mainboard 10 of the substrate 1.
The quantity of the flexible part 11 is not limited to two or greater number, and the flexible part 11 is also not necessarily limited to Positioned at the homonymy of the mainboard 10, the offside of the mainboard 10 can also be located at, any the two of the mainboard 10 can also be located at Side.When the quantity of flexible part 11 for it is multiple when, the flexible part 11 can be located at any side of the mainboard 10, both sides, Or more sides.The quantity of second electrode 31 is also not necessarily limited to one or multiple second electrodes 31 on the flexible part 11 In on same flexible part 11.
As shown in figure 4, it is another embodiment of the touch key-press, the touch key-press 10 includes substrate 1, positioned at base Touch sensible electrode 2 and variable capacitance mechanism 3 on plate 1, the variable capacitance mechanism 3 include first positioned at the substrate 1 Electrode 30 and second electrode (shown in phantom) 31, the second electrode 31 are arranged on cover plate 4 relative to the first electrode 30, The cover plate 4 is set relative to the substrate 1, and described one end of cover plate 4 is fixed, remainder elasticity activity.It is described tactile when pressing When touching button, the cover plate 4 can be pressed, and drive the second electrode 31 to be moved towards the first electrode 30, and described second Electrode 31 can relatively described first electrode about 30 distance change, the electric capacity of the variable capacitance mechanism changes.Work as release During the touch key-press, the cover plate 4 rebounds, the position returned to before pressing.
The variable capacitance mechanism of the touch key-press can also be multiple, as shown in figure 5, the first electricity of the touch key-press Pole 30 and second electrode 31 are two, and the first electrode 30 is respectively arranged at the both sides of the touch sensible electrode 2.
The touch key-press is not limited only to said structure, as shown in fig. 6, the second electrode is arranged on cover plate 4, institute State cover plate 4 to be oppositely arranged with substrate 1, compliant mechanism 32 is provided between the second electrode 31 and the first electrode 30, such as:Rubber Glue etc..When pressing the touch key-press, the cover plate 4 can be pressed, and cover plate 4 extrudes the compliant mechanism 32, the cover plate 4 The second electrode 31 is driven to be moved towards the first electrode 30, the second electrode 31 can be in relatively described first electrode 30 Lower distance changes, and the electric capacity of the variable capacitance mechanism changes.When unclamping the touch key-press, the compliant mechanism bullet Return, the position that the cover plate 4 is returned to before pressing.The compliant mechanism 32 can also be replaced by elastic mechanism, such as:Spring etc..
Fig. 7 shows another embodiment for including compliant mechanism 32 of the present invention, the first electrode 30 and second electricity Pole 31 is separated by compliant mechanism 32, and the second electrode 31 is located on the end face of compliant mechanism 32, presses the touch key-press When, the compliant mechanism 32 is extruded, and drives the second electrode 31 to be moved to the first electrode 30, the second electrode 31 The distance between described first electrode 30 changes, and then the electric capacity formed changes.When unclamping the touch key-press, The compliant mechanism 32 rebounds the state before being pressed.
Lower mask body place of matchmakers states touch key-press and realizes the method for waking up screen.As shown in figure 8, touched when there are touch objects to press When touching button, the second electrode opposite first pole of the touch key-press is subjected to displacement, close to the first electrode so that first The distance between electrode and second electrode change, and then the electric capacity of the variable capacitance mechanism of the touch key-press becomes Change, the control chip detects the capacitance variations, judges that the touch key-press is pressed, if it is determined that the touch key-press by by Pressure, then wake up screen.
The control chip judges that the method that the touch key-press is pressed can be by setting a threshold value, and the threshold value can To be capacitance threshold value, when the threshold value is capacitance threshold value, judge whether the capacitance of the variable capacitance mechanism reaches threshold value, Or judge whether the capacitance variations value of the variable capacitance mechanism reaches threshold value, when the capacitance that control chip detects reaches During threshold value, assert that the touch key-press is pressed.The threshold value can also be time threshold, when the electricity of the variable capacitance mechanism When the time of appearance change reaches threshold value, judge that the touch key-press is pressed.
Only when touch objects touch touch key-press, the variable capacitance mechanism forms circuit loop by touch objects, The control chip can detect the electric capacity of the variable capacitance mechanism, and when insulating bodies touches the touch key-press, The variable capacitance mechanism can not form capacitor loop, and the control chip can not detect the electric capacity of variable capacitance mechanism, because This, only when touch objects touch the touch key-press, the touch key-press just can make phase according to the corresponding operating of touch objects The reaction answered, the touch key-press have the function of preventing false touch.
The touch key-press can be applied not only to wake up screen, can be also used for realizing the second operation of touch key-press, It is a kind of operation such as to touch touch key-press, and pressing touch key-press can realize another operation, and a touch key-press realizes two kinds Operation, can also reduce the setting of electronic equipment touch key-press.

Claims (10)

1. a kind of touch key-press, it includes substrate, the touch sensible electrode in the substrate, it is characterised in that:It is described to touch Touching button also includes an at least variable capacitance mechanism, and the variable capacitance mechanism is located at least the one of the touch sensible electrode Side, the touch sensible electrode and the variable capacitance mechanism are connected to control chip.
2. touch key-press as claimed in claim 1, it is characterised in that:The variable capacitance mechanism includes first electrode and second Electrode, the relatively described first electrode of the second electrode are set, and the first electrode is connected to the control chip.
3. touch key-press as claimed in claim 2, it is characterised in that:The first electrode is arranged on substrate, and described second The relatively described first electrode of electrode is set, and the second electrode can move relative to the first electrode so that the second electrode The distance between described first electrode changes.
4. touch key-press as claimed in claim 2, it is characterised in that:The substrate includes mainboard and flexible part, the flexibility Portion is bent to the mainboard, and relative to mainboard elasticity activity, the first electrode is located at the mainboard of the substrate, and described the Two electrodes are located at the flexible part of the substrate.
5. touch key-press as claimed in claim 2, it is characterised in that:One cover plate is oppositely arranged with the substrate, and described first Electrode is located at the substrate, and the second electrode is arranged on the cover plate, and relatively described first electrode moves up and down.
6. the touch key-press as described in claim 2 or 5, it is characterised in that:Between the second electrode and the first electrode Provided with elastic mechanism or compliant mechanism.
7. touch key-press as claimed in claim 2, it is characterised in that:It is provided between the second electrode and the first electrode Compliant mechanism, the second electrode are located on the compliant mechanism.
8. touch key-press as claimed in claim 2, it is characterised in that:The first electrode and the second electrode include leading Body layer and insulating barrier, the insulating barrier cover the conductor layer.
9. the method that touch key-press as claimed in claim 1 wakes up screen:When there is touch objects to press touch key-press, the control Coremaking piece detects the capacitance variations of the variable capacitance mechanism, judges described touch according to the capacitance variations of the variable capacitance mechanism Touch whether button is pressed, if it is determined that the touch key-press is pressed, then wake up screen.
10. the method that touch key-press as claimed in claim 9 wakes up screen, it is characterised in that:It is described to judge that the touch is pressed The method whether key is pressed is:Detect variable capacitance mechanism capacitance either capacitance variations value or the variable capacitance Whether the time that mechanism electric capacity changes reaches threshold value, if reaching threshold value, judges that the touch key-press is pressed.
CN201710724435.4A 2017-08-22 2017-08-22 Touch key-press and its method for waking up screen Pending CN107612538A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710724435.4A CN107612538A (en) 2017-08-22 2017-08-22 Touch key-press and its method for waking up screen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710724435.4A CN107612538A (en) 2017-08-22 2017-08-22 Touch key-press and its method for waking up screen

Publications (1)

Publication Number Publication Date
CN107612538A true CN107612538A (en) 2018-01-19

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110932709A (en) * 2018-09-20 2020-03-27 上汽通用汽车有限公司 Capacitive touch switch and method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201467098U (en) * 2009-05-08 2010-05-12 深圳市汇顶科技有限公司 Touch-key sensing equipment, electronic device, rainfall amount sensor and vehicle
CN102427357A (en) * 2011-12-07 2012-04-25 江苏惠通集团有限责任公司 Capacitor touch key system
CN102495681A (en) * 2011-11-23 2012-06-13 江苏惠通集团有限责任公司 Control equipment with touch buttons
CN104363012A (en) * 2014-10-16 2015-02-18 北京集创北方科技有限公司 Portable terminal and implementing method for pressing key of side of capacitor type touch screen by touching
CN207588830U (en) * 2017-08-22 2018-07-06 苏州瀚瑞微电子有限公司 A kind of touch key-press

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201467098U (en) * 2009-05-08 2010-05-12 深圳市汇顶科技有限公司 Touch-key sensing equipment, electronic device, rainfall amount sensor and vehicle
CN102495681A (en) * 2011-11-23 2012-06-13 江苏惠通集团有限责任公司 Control equipment with touch buttons
CN102427357A (en) * 2011-12-07 2012-04-25 江苏惠通集团有限责任公司 Capacitor touch key system
CN104363012A (en) * 2014-10-16 2015-02-18 北京集创北方科技有限公司 Portable terminal and implementing method for pressing key of side of capacitor type touch screen by touching
CN207588830U (en) * 2017-08-22 2018-07-06 苏州瀚瑞微电子有限公司 A kind of touch key-press

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110932709A (en) * 2018-09-20 2020-03-27 上汽通用汽车有限公司 Capacitive touch switch and method

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