CN107037930A - Touch screen drive circuit and electronic equipment - Google Patents
Touch screen drive circuit and electronic equipment Download PDFInfo
- Publication number
- CN107037930A CN107037930A CN201710322123.0A CN201710322123A CN107037930A CN 107037930 A CN107037930 A CN 107037930A CN 201710322123 A CN201710322123 A CN 201710322123A CN 107037930 A CN107037930 A CN 107037930A
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- switch unit
- drive circuit
- charge pump
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transceivers (AREA)
- Telephone Function (AREA)
Abstract
The embodiment of the present invention provides a kind of touch screen drive circuit and electronic equipment.The electronic equipment has antenna modules and touch module, and the touch screen drive circuit includes charge pump, current limiting unit and switch unit；The switch unit is connected with charge pump and current limiting unit respectively, and the current limiting unit and charge pump are connected with touch module respectively；The switch unit accesses supply voltage, and switch unit is used to connect with charge pump when the range value that antenna modules receive signal is more than the first predeterminated voltage so that charge pump is supplied to touch module after supply voltage is boosted；And connected for being received in antenna modules when the range value of signal is less than the first predeterminated voltage with current limiting unit, to be powered by the current limiting unit to touch module.The present invention has the beneficial effect for the interference for reducing the signal that touch module is received to antenna modules.
Description
Technical field
The present invention relates to the communications field, more particularly to a kind of touch screen drive circuit and electronic equipment.
Background technology
Intelligent terminal is received by antenna modules after the signal sent of base station, can return the amplitude of a signal
Value X is to base station.And the signal intensity of return value and intelligent terminal for reception to base station is one-to-one.If intelligent terminal is present
After interference, Base Transmitter still keeps constant to terminal signaling intensity, but interference signal can arrive intelligent terminal for reception
Signal weaker, so that causing terminal to be returned can change to the range value of the signal of base station.When intelligent terminal be interfered with
Afterwards, its actual reception signal it is too low it is even lower in the case of, will arise a problem that；First is exactly that signal is too low,
Receiving signal and can not demodulating causes communication invalid.Second be terminal return to base station signal strength be less than be actually reached it is strong
Degree, can cause base station to continue to increase transmission power so that the signal intensity for obtaining incoming terminal reaches the requirement of terminal, here it is going out
The problem of existing wasting of resources.
In existing intelligent terminal, touch-screen is mainly concerned with the switching process of charge pump for the interference of radio communication.
The use of charge pump can improve the interference that signal is received for antenna modules, cause the signal received to weaken.
The content of the invention
The embodiment of the present invention provides a kind of touch screen drive circuit and electronic equipment, with reduction touch module to antenna mould
The beneficial effect of the interference for the signal that group is received.
The embodiment of the present invention provides a kind of touch screen drive circuit, in electronic equipment, the electronic equipment to have antenna
Module and touch module, the touch screen drive circuit include charge pump, current limiting unit and switch unit；
The switch unit accesses supply voltage, and the range value that switch unit is used to receive signal in antenna modules is more than
Connected during the first predeterminated voltage with charge pump so that charge pump is supplied to touch module after supply voltage is boosted；And be used for
The range value for receiving signal in antenna modules is connected when being less than the first predeterminated voltage with current limiting unit, to pass through the current limiting unit
Powered to touch module.
The embodiment of the present invention provides a kind of electronic equipment, including the touch screen drive circuit described in any of the above-described.
From the foregoing, it will be observed that touch module drive circuit provided in an embodiment of the present invention is by receiving detecting antenna modules
Signal intensity be less than the first preset voltage value when, driving voltage is not boosted by the charge pump and directly passed by current limiting unit
The touch module is defeated by, so as to reduce the interference for the signal that the touch module is received for antenna modules.
Brief description of the drawings
Fig. 1 is the first structural representation of the electronic equipment in one embodiment of the present invention.
Fig. 2 is second of structural representation of the electronic equipment in one embodiment of the present invention.
Fig. 3 is the third structural representation of the electronic equipment in one embodiment of the present invention.
Fig. 4 is the first structural representation of the touch screen drive circuit of the electronic equipment in one embodiment of the present invention
Figure.
Fig. 5 is second of structural representation of the touch screen drive circuit of the electronic equipment in one embodiment of the present invention
Figure.
Fig. 6 is the third structural representation of the touch screen drive circuit of the electronic equipment in one embodiment of the present invention
Figure.
Embodiment
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element or element with same or like function are represented to same or similar label eventually.Below by ginseng
The embodiment for examining accompanying drawing description is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise " are, based on orientation shown in the drawings or position relationship, to be for only for ease of
The description present invention and simplified description, rather than indicate or imply that the device or element of meaning must have specific orientation, Yi Te
Fixed azimuth configuration and operation, therefore be not considered as limiting the invention.In addition, term " first ", " second " are only used for
Purpose is described, and it is not intended that indicating or implying relative importance or the implicit quantity for indicating indicated technical characteristic.
Thus, " first " is defined, one or more feature can be expressed or be implicitly included to the feature of " second ".
In description of the invention, " multiple " are meant that two or more, unless otherwise specifically defined.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection or can mutually communicate；Can be joined directly together, can also be by between intermediary
Connect connected, can be connection or the interaction relationship of two elements of two element internals.For the ordinary skill of this area
For personnel, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or it " under "
Can directly it be contacted including the first and second features, it is not direct contact but by it that can also include the first and second features
Between other characterisation contact.Moreover, fisrt feature second feature " on ", " top " and " above " to include first special
Levy directly over second feature and oblique upper, or be merely representative of fisrt feature level height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " fisrt feature that includes are immediately below second feature and obliquely downward, or be merely representative of
Fisrt feature level height is less than second feature.
Following disclosure provides many different embodiments or example is used for realizing the different structure of the present invention.In order to
Simplify disclosure of the invention, hereinafter the part and setting of specific examples are described.Certainly, they are only merely illustrative, and
And purpose does not lie in the limitation present invention.In addition, the present invention can in different examples repeat reference numerals and/or reference letter,
This repetition is for purposes of simplicity and clarity, between discussed various embodiments itself are not indicated and/or are set
Relation.In addition, the invention provides various specific techniques and material example, but those of ordinary skill in the art can be with
Recognize the application of other techniques and/or the use of other materials.
The embodiment of the present invention provides a kind of electronic equipment.The electronic equipment can be the equipment such as smart mobile phone, tablet personal computer.
With reference to Fig. 1 and Fig. 2, electronic equipment 1 includes cover plate 101, display screen 102, circuit board 103, power supply module 104, housing 105, touched
Control module 106.
The touch module 106 is covered on the display screen 102.Wherein, cover plate 101 is installed in touch module 106, to cover
Lid touch module 106.Cover plate 101 can be transparent glass cover plate.In certain embodiments, cover plate 101 can be with such as blue
The glass cover-plate that the materials such as jewel are made.
Display screen 102 is arranged on housing 105, to form the display surface of electronic equipment 100.Display screen 102 can include
Viewing area 102A and non-display area 102B.Viewing area 102A is used for the information such as display image, text.Non-display area
102B not display informations.Non-display area 102B bottom can set the functional units such as fingerprint module, touch-control circuit.
Circuit board 103 is arranged on inside housing 105.Circuit board 103 can be the mainboard of electronic equipment 100.Circuit board 103
On can be integrated with the functional units such as camera, proximity transducer and processor.Meanwhile, display screen 102 can be electrically connected to
Circuit board 103.
In certain embodiments, radio frequency (RF, Radio Frequency) circuit is provided with circuit board 103.Radio circuit
Wireless network and the network equipment (for example, server, base station etc.) or other electronic equipments (for example, smart mobile phone etc.) can be passed through
Communication, with the information transmit-receive completed and between the network equipment or other electronic equipments.
Referring to Fig. 3, Fig. 3 is the structural representation of the electronic equipment in one embodiment of the present invention.The electronics
Equipment also includes touch screen drive circuit 107, antenna modules 108 and power supply module 104.Wherein, the touch screen drive circuit
107 electrically connect with the antenna modules 108, touch module 106 and power supply module 104 respectively.
Wherein, the antenna modules 108 are used to receive the wireless signal that external electronic device is sent, and send wireless signal
To external electronic device.
The touch module 106 includes the touch control induction circuit on touch base plate and setting touch base plate.The touch module
106 when being applied in the mobile terminal such as mobile phone, is covered on the display screen 102 of mobile terminal.
The power supply module 104 is used to power to each electricity consumption module of the electronic equipment.
The touch module 106 that supplies voltage to that the touch screen drive circuit 107 is provided using power supply module 104 is powered,
So that touch module 106 produces touch-control sensing electric field, to sense touch control operation of the user to touch module 106.
In certain embodiments, the touch screen drive circuit 107 includes the first comparing unit 10, switch unit 20, electric charge
Pump 30 and current limiting unit 40.The comparison voltage end of first comparing unit 10 is connected with antenna modules 108, to detect antenna mould
The intensity for the wireless signal that group 108 is received.The reference voltage terminal of first comparing unit 10 accesses the first predeterminated voltage V0 and made
On the basis of voltage.The output end of first comparing unit 10 is connected with the control end of the switch unit 20, the switch unit 20
First output end connects 30 with charge pump and connect, and the second output end of the switch unit 20 is connected with the current limiting unit 40, the charge pump
30 and current limiting unit 40 be connected respectively with touch module 106.
Wherein, first comparing unit 10 can be comparison circuit, and the common comparison being for example made up of operational amplifier is electric
Road.It exports a control signal to switch unit 20 according to comparative result.
The switch unit 20 can for one input two output gating circuits, its according under control signal optionally with this
Charge pump 30 or the current limiting unit 40 are connected.
Wherein, in certain embodiments, as shown in figure 4, the switch unit 20 includes the first triode Q1, the second triode
Q2 and negative circuit 21.The input of the negative circuit 21 is connected with the output end of first comparing unit 10, the anti-phase electricity
The output end on road 21 is connected with second triode Q2 control end, second triode Q2 output end and the current limiting unit 40
Connection, first triode Q1 control end is connected with the output end of first comparing unit 10, and first triode Q1's is defeated
Go out end to be connected with the charge pump 30.The first triode Q1 and the second triode Q2 input connect and are used as the switching list
The input of member 20, it accesses supply voltage VCC.In the present embodiment, supply voltage VCC is provided by the power supply module 104.
The first triode Q1 and the second triode Q2 is fet, it is of course also possible to be transistor.One or three pole
Pipe Q1 is identical with the second triode Q2 switching characteristic, is conducting or to be turned on when control end is high level during low level.First
Triode Q1 and the second triode Q2 is NMOS fets.
Wherein, the negative circuit 21 can be CMOS negative circuits, and it is used to export the output end of the first comparing unit 10
Voltage signal it is anti-phase, such as low level becomes high level, and high level becomes low level so that the first triode Q1 with
Second triode Q2 switch conditions are opposite.
Wherein, current limiting unit 40 is current-limiting resistance R1.It is to be appreciated that the current limiting unit 40 can also use the pole of constant current two
Pipe.So as to avoid excessive electric current from flowing directly into the touch control induction circuit of touch module 106.
In further embodiments, as shown in figure 5, switch unit 20 includes the 3rd triode Q3 and the 4th triode
Q4, the output end of the first comparing unit 10 connects with the 3rd triode Q3 control end and the 4th triode Q4 control end respectively
Connect.3rd triode Q3 input and the 4th triode Q4 input are respectively connected to supply voltage VCC, the 3rd triode
Q3 output end is connected with charge pump 30, and the output end of the 4th triode Q4 is connected with the current limiting unit 40, and the three or three
Pole pipe Q3 is opposite with the 4th triode Q4 switching characteristic so that the 3rd triode Q3 and the 4th triode Q4 are receiving first
During 10 output control signal of comparing unit, on off state is opposite.Wherein.3rd triode is NMOS tube, the 4th triode
For PMOS.
During electronic device works, antenna modules 108 receive the wireless signal that external equipment is sent, first comparing unit 10
The range value for the wireless signal that antenna modules 108 are received is compared with the first predeterminated voltage, when the range value is less than first
During predeterminated voltage, illustrate interference that touch module 106 and charge pump 80 produce than more serious, therefore switch unit 20 and electric charge
Pump 30 is disconnected and connected with current limiting unit 40, and the supply voltage that power supply module 104 is provided is supplied to by current limiting unit
Touch module 106, so as to avoid charge pump 30 from boosting the interference to antenna modules 108.When the range value is more than the first default electricity
During pressure, the interference of specification touch module 106 and charge pump 30 to antenna modules 108 is weaker or noiseless, therefore, normally
Using charge pump 30, switch unit 20 is connected with charge pump 30, and is disconnected with current limiting unit 40.
From the foregoing, it will be observed that touch screen drive circuit provided in an embodiment of the present invention is by detecting what antenna modules were received
When signal intensity is less than the first preset voltage value, driving voltage is not boosted by the charge pump and directly transmitted by current limiting unit
The touch module is given, so as to reduce the interference for the signal that the touch module is received for antenna modules.
Fig. 6 is refer to, in further embodiments, the touch screen drive circuit 107 includes the first comparing unit 10, switching
Unit 20, charge pump 30, current limiting unit 40, first switch unit 50, the second comparing unit 60, second switch unit 70.
The comparison voltage end of first comparing unit 10 is connected with antenna modules 108, to detect that antenna modules 108 are received
Wireless signal intensity.The reference voltage terminal of first comparing unit 10 accesses the first predeterminated voltage and is used as reference voltage.Should
The output end of first comparing unit 10 is connected with the control end of the switch unit 20, the first output end and the electricity of the switch unit 20
Lotus pump connects 30 and connect, and the second output end of the switch unit 20 is connected with the current limiting unit 40, the charge pump 30 and current limiting unit
40 are connected with touch module 106 respectively.The control end of first switch unit 50 is connected to switch unit 20 and charge pump 30
At common node, the input of first switch unit 50 is connected to detect letter that antenna modules 108 are received with antenna modules 108
Number intensity, the output end of first switch unit 50 is connected with the comparison end of the second comparing unit 60, the base of the second comparing unit 60
Quasi- voltage end accesses the second predeterminated voltage；The output end of second comparing unit 60 is connected with the control end of second switch unit 70,
Charge pump 30 is connected by second switch unit 70 with touch module 106.
First switch unit 50 is turned on when switch unit 20 is communicated to charge pump 30, and the second comparing unit 60 is by antenna modules
300 signal intensities received are compared with the second predeterminated voltage V1, when signal intensity is more than the second predeterminated voltage, and second
Comparing unit exports Continuity signal to second switch unit 70 so that second switch unit 70 is turned on, when signal intensity is less than second
During predeterminated voltage, the second comparing unit 60 exports pick-off signal to second switch unit 70 so that second switch unit 70 ends.
Second predeterminated voltage V1 can be equal to the first predeterminated voltage V0, might be less that the first predeterminated voltage V0.
Wherein, the first switch unit 50 and second switch unit 70 can be triode, such as pole of field-effect three
Pipe or transistor.Second comparing unit 60 can be comparison circuit, the common ratio being for example made up of operational amplifier
Compared with circuit.It exports a control signal to second switch unit 20 according to comparative result.
During electronic device works, antenna modules 108 receive the wireless signal that external equipment is sent, first comparing unit 10
The range value for the wireless signal that antenna modules 108 are received is compared with the first predeterminated voltage, when the range value is less than first
During predeterminated voltage, illustrate interference that touch module 106 and charge pump 80 produce than more serious, therefore switch unit 20 and electric charge
Pump 30 is disconnected and connected with current limiting unit 40, and the supply voltage that power supply module 104 is provided is supplied to by current limiting unit
Touch module 106, so as to avoid charge pump 30 from boosting the interference to antenna modules 108.When the range value is more than the first default electricity
During pressure, the interference of specification touch module 106 and charge pump 30 to antenna modules 108 is weaker or noiseless, therefore, normally
Using charge pump 30, switch unit 20 is connected with charge pump 30, and is disconnected further with current limiting unit 40, by not
The signal intensity that antenna modules 300 are received is detected in the case of using charge pump 30, can be further without using charge pump 30
When, if the touch module 106 still produces interference to antenna modules 300, driving electricity will not be provided to the antenna modules 300
Pressure, so as to thoroughly eliminate the interference to antenna modules 300.
In the description of this specification, reference term " embodiment ", " some embodiments ", " schematically implementation
The description of mode ", " example ", " specific example " or " some examples " etc. means with reference to the embodiment or example description
Specific features, structure, material or feature are contained at least one embodiment of the present invention or example.In this specification
In, identical embodiment or example are not necessarily referring to the schematic representation of above-mentioned term.Moreover, the specific spy of description
Levy, structure, material or feature can in an appropriate manner be combined in any one or more embodiments or example.
In summary, although the present invention it is disclosed above with preferred embodiment, but above preferred embodiment and be not used to limit
The system present invention, one of ordinary skill in the art without departing from the spirit and scope of the present invention, can make various changes and profit
Adorn, therefore protection scope of the present invention is defined by the scope that claim is defined.
In summary, although the present invention it is disclosed above with preferred embodiment, but above preferred embodiment and be not used to limit
The system present invention, one of ordinary skill in the art without departing from the spirit and scope of the present invention, can make various changes and profit
Adorn, therefore protection scope of the present invention is defined by the scope that claim is defined.
Claims (10)
1. a kind of touch screen drive circuit, in electronic equipment, the electronic equipment to have antenna modules and touch module, its
It is characterised by, the touch screen drive circuit includes charge pump, current limiting unit and switch unit；
The switch unit accesses supply voltage, and switch unit is used to be more than first in the range value that antenna modules receive signal
Connected during predeterminated voltage with charge pump so that charge pump is supplied to touch module after supply voltage is boosted；And in day
The range value that line module receives signal is connected when being less than the first predeterminated voltage with current limiting unit, is touched with being given by the current limiting unit
Control module is powered.
2. touch screen drive circuit according to claim 1, it is characterised in that also including the first comparing unit, described
One comparing unit is connected with antenna modules, and antenna modules are received into the intensity level of signal and the first preset voltage value is compared
Compared with, and comparative result is sent to switch unit.
3. touch screen drive circuit according to claim 2, it is characterised in that the switch unit include negative circuit,
First triode and the second triode, the output end of first comparing unit, the input of negative circuit and the one or three
The control end of pole pipe is sequentially connected, and the output end of first comparing unit is connected with the control end of the second triode；
The input of first triode and the input of the second triode are respectively connected to supply voltage, the one or three pole
The output end of pipe is connected with the charge pump, and the output end of second triode is connected with the current limiting unit, and described first
Triode is identical with the switching characteristic of the second triode.
4. touch screen drive circuit according to claim 3, it is characterised in that first triode and the two or three pole
Pipe is NMOS tube.
5. touch screen drive circuit according to claim 2, it is characterised in that the switch unit includes the 3rd triode
And the 4th triode, the control end and the 4th triode of the output end of first comparing unit respectively with the 3rd triode
Control end connection；
The input of 3rd triode and the input of the 4th triode are respectively connected to supply voltage, the three or three pole
The output end of pipe is connected with the charge pump, and the output end of the 4th triode is connected with the current limiting unit, and the described 3rd
Triode is opposite with the switching characteristic of the 4th triode.
6. touch screen drive circuit according to claim 5, it is characterised in that the 3rd triode is NMOS tube, institute
The 4th triode is stated for PMOS.
7. touch screen drive circuit according to claim 1, it is characterised in that the current-limiting circuit is current-limiting resistance.
8. touch screen drive circuit according to claim 1, it is characterised in that the current-limiting circuit is current regulator diode.
9. touch screen drive circuit according to claim 1, it is characterised in that also opened including the second comparing unit, first
Close unit, second switch unit；
The first switch unit is connected with the common node of switch unit and charge pump, the first switch element antenna mould
Group connection is to detect the range value for the signal that antenna modules are received, and the first switch unit, the second comparing unit, second open
Close unit to be sequentially connected, the charge pump is connected by the second switch unit with touch module；
First switch unit is turned on when the switch unit is communicated to the charge pump, when the range value of the signal is more than second
During predeterminated voltage, the second comparing unit exports Continuity signal and to second switch unit second switch unit is turned on；When described
When the range value of signal is less than the second predeterminated voltage, the second comparing unit exports pick-off signal and gives second switch unit so that the
Two switch elements end.
10. a kind of electronic equipment, it is characterised in that including the touch screen drive circuit described in claim any one of 1-9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710322123.0A CN107037930B (en) | 2017-05-09 | 2017-05-09 | Touch screen driving circuit and electronic equipment |
| PCT/CN2018/084419 WO2018205834A1 (en) | 2017-05-09 | 2018-04-25 | Touch control screen drive circuit, touch control screen and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710322123.0A CN107037930B (en) | 2017-05-09 | 2017-05-09 | Touch screen driving circuit and electronic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107037930A true CN107037930A (en) | 2017-08-11 |
| CN107037930B CN107037930B (en) | 2019-10-25 |
Family
ID=59538686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710322123.0A Active CN107037930B (en) | 2017-05-09 | 2017-05-09 | Touch screen driving circuit and electronic equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107037930B (en) |
| WO (1) | WO2018205834A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018205834A1 (en) * | 2017-05-09 | 2018-11-15 | Oppo广东移动通信有限公司 | Touch control screen drive circuit, touch control screen and electronic device |
| CN109085953A (en) * | 2018-08-17 | 2018-12-25 | 维沃移动通信有限公司 | It is a kind of to reduce the method interfered and terminal device |
| CN110244880A (en) * | 2019-06-27 | 2019-09-17 | 京东方科技集团股份有限公司 | Touch-control circuit and display device |
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| CN103095127A (en) * | 2013-01-22 | 2013-05-08 | 上海艾为电子技术有限公司 | Charge pump circuit and electronic equipment |
| CN105404416A (en) * | 2015-10-23 | 2016-03-16 | 广东欧珀移动通信有限公司 | Anti-interference method and apparatus for touch screen |
| CN106057138A (en) * | 2015-04-01 | 2016-10-26 | 矽创电子股份有限公司 | Power Circuit, Gate Driving Circuit and Display Module |
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| JP4031399B2 (en) * | 2003-07-08 | 2008-01-09 | セイコーインスツル株式会社 | Semiconductor integrated circuit device |
| CN105896959B (en) * | 2015-02-15 | 2019-03-08 | 天工方案公司 | Staggered dual output charge pump |
| TWI559116B (en) * | 2015-12-09 | 2016-11-21 | Egalax Empia Technology Inc | In-wafer integrated clock generator charging pump |
| CN107037930B (en) * | 2017-05-09 | 2019-10-25 | Oppo广东移动通信有限公司 | Touch screen driving circuit and electronic equipment |
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- 2018-04-25 WO PCT/CN2018/084419 patent/WO2018205834A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103095127A (en) * | 2013-01-22 | 2013-05-08 | 上海艾为电子技术有限公司 | Charge pump circuit and electronic equipment |
| CN106057138A (en) * | 2015-04-01 | 2016-10-26 | 矽创电子股份有限公司 | Power Circuit, Gate Driving Circuit and Display Module |
| CN105404416A (en) * | 2015-10-23 | 2016-03-16 | 广东欧珀移动通信有限公司 | Anti-interference method and apparatus for touch screen |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018205834A1 (en) * | 2017-05-09 | 2018-11-15 | Oppo广东移动通信有限公司 | Touch control screen drive circuit, touch control screen and electronic device |
| CN109085953A (en) * | 2018-08-17 | 2018-12-25 | 维沃移动通信有限公司 | It is a kind of to reduce the method interfered and terminal device |
| CN109085953B (en) * | 2018-08-17 | 2021-07-30 | 维沃移动通信有限公司 | Method for reducing interference and terminal equipment |
| CN110244880A (en) * | 2019-06-27 | 2019-09-17 | 京东方科技集团股份有限公司 | Touch-control circuit and display device |
| CN110244880B (en) * | 2019-06-27 | 2022-11-04 | 京东方科技集团股份有限公司 | Touch circuit and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018205834A1 (en) | 2018-11-15 |
| CN107037930B (en) | 2019-10-25 |
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