CN107037930B - Touch screen driving circuit and electronic equipment - Google Patents
Touch screen driving circuit and electronic equipment Download PDFInfo
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- CN107037930B CN107037930B CN201710322123.0A CN201710322123A CN107037930B CN 107037930 B CN107037930 B CN 107037930B CN 201710322123 A CN201710322123 A CN 201710322123A CN 107037930 B CN107037930 B CN 107037930B
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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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- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
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- Physics & Mathematics (AREA)
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Abstract
The embodiment of the present invention provides a kind of touch screen driving circuit and electronic equipment.The electronic equipment has antenna modules and touch module, which includes charge pump, current limiting unit and switch unit；The switch unit is connect with charge pump and current limiting unit respectively, and the current limiting unit and charge pump are connect with touch module respectively；The switch unit accesses supply voltage, and switch unit is used to be connected to when the range value that antenna modules receive signal is greater than the first predeterminated voltage with charge pump, so that charge pump is supplied to touch module after supply voltage boosts；And the range value for receiving signal in antenna modules less than the first predeterminated voltage when be connected to current limiting unit, with by the current limiting unit give touch module power supply.The present invention has reduction touch module to the beneficial effect of the interference of antenna modules received signal.
Description
Technical field
The present invention relates to the communications fields, more particularly to a kind of touch screen driving circuit and electronic equipment.
Background technique
After intelligent terminal receives the signal of base station sent by antenna modules, the amplitude of a signal can be returned
Value X is to base station.And the signal strength that return value receives base station with intelligent terminal is one-to-one.If intelligent terminal exists
After interference, Base Transmitter is still remained unchanged to terminal signaling intensity, but interference signal can be such that intelligent terminal receives
Signal weaker can change so as to cause the range value that terminal is returned to the signal of base station.When intelligent terminal be interfered with
Afterwards, actual reception signal it is too low it is even lower in the case where, 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 lower than be actually reached it is strong
Degree can make base station continue to increase transmission power so that the signal strength of incoming terminal reaches the requirement of terminal, and here it is go out
The problem of existing wasting of resources.
In existing intelligent terminal, touch screen is mainly concerned with the interference of radio communication the switching process of charge pump.
The use of charge pump can improve the interference that antenna modules are received with signal, and received signal is caused to weaken.
Summary of the invention
The embodiment of the present invention provides a kind of touch screen driving circuit and electronic equipment, and having reduces touch module to antenna mould
The beneficial effect of the interference of group received signal.
The embodiment of the present invention provides a kind of touch screen driving circuit, in electronic equipment, which to have antenna
Mould group and touch module, the touch screen driving circuit include charge pump, current limiting unit and switch unit；
The switch unit accesses supply voltage, and switch unit in the range value that antenna modules receive signal for being greater than
It is connected to when the first predeterminated voltage with charge pump, so that charge pump is supplied to touch module after supply voltage boosts；And it is used for
It is connected to when antenna modules receive the range value of signal less than the first predeterminated voltage with current limiting unit, to pass through the current limiting unit
It powers to touch module.
The embodiment of the present invention provides a kind of electronic equipment, including touch screen driving circuit described in any of the above embodiments.
From the foregoing, it will be observed that touch module driving circuit provided in an embodiment of the present invention is by detecting that antenna modules receive
Signal strength be lower than the first preset voltage value when, driving voltage not by the charge pump boost directly by current limiting unit biography
It is defeated by the touch module, to reduce interference of the touch module for antenna modules received signal.
Detailed description of the invention
Fig. 1 is the first structural schematic diagram of the electronic equipment in one embodiment of the present invention.
Fig. 2 is second of structural schematic diagram of the electronic equipment in one embodiment of the present invention.
Fig. 3 is the third structural schematic diagram of the electronic equipment in one embodiment of the present invention.
Fig. 4 is the first structural representation of the touch screen driving circuit of the electronic equipment in one embodiment of the present invention
Figure.
Fig. 5 is second of structural representation of the touch screen driving circuit of the electronic equipment in one embodiment of the present invention
Figure.
Fig. 6 is the third structural representation of the touch screen driving circuit of the electronic equipment in one embodiment of the present invention
Figure.
Specific embodiment
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
The description present invention and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with spy
Fixed orientation construction and operation, therefore be not considered as limiting the invention.In addition, term " first ", " second " are only used for
Purpose is described, relative importance is not understood to indicate or imply or implicitly indicates the quantity of indicated technical characteristic.
" first " is defined as a result, the feature of " second " can explicitly or implicitly include one or more feature.?
In description of the invention, the meaning of " plurality " is two or more, unless otherwise specifically defined.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected or can mutually communicate；It can be directly connected, it can also be by between intermediary
It connects connected, can be the connection inside two elements or the interaction relationship of two elements.For the ordinary skill of this field
For personnel, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower"
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above "
Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of
First feature horizontal height is less than second feature.
Following disclosure provides many different embodiments or example is used to realize different structure of the invention.In order to
Simplify disclosure of the invention, hereinafter the component of specific examples and setting are described.Certainly, they are merely examples, and
And it is not intended to limit the 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, itself not indicate between discussed various embodiments and/or setting
Relationship.In addition, the present 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 phone, tablet computer.
With reference to Fig. 1 and Fig. 2, electronic equipment 1 includes cover board 101, display screen 102, circuit board 103, power supply mould group 104, shell 105, touching
Control mould group 106.
The touch module 106 is covered on the display screen 102.Wherein, cover board 101 is installed in touch module 106, to cover
Lid touch module 106.Cover board 101 can be transparent glass cover plate.In some embodiments, it is such as blue to can be use for cover board 101
Glass cover-plate made of the materials such as jewel.
Display screen 102 is mounted on shell 105, to form the display surface of electronic equipment 100.Display screen 102 may include
Display area 102A and non-display area 102B.Display area 102A is for showing the information such as image, text.Non-display area
102B does not show information.The functional units such as fingerprint mould group, touch-control circuit can be set in the bottom of non-display area 102B.
Circuit board 103 is mounted on inside shell 105.Circuit board 103 can be the mainboard of electronic equipment 100.Circuit board 103
On can integrate the functional units such as camera, proximity sensor and processor.Meanwhile display screen 102 can be electrically connected to
Circuit board 103.
In some embodiments, radio frequency (RF, Radio Frequency) circuit is provided on circuit board 103.Radio circuit
Wireless network and the network equipment (for example, server, base station etc.) or other electronic equipments (for example, smart phone etc.) can be passed through
Communication, with the information transmit-receive completed and between the network equipment or other electronic equipments.
It is the structural schematic diagram of the electronic equipment in one embodiment of the present invention referring to Fig. 3, Fig. 3.The electronics
Equipment further includes touch screen driving circuit 107, antenna modules 108 and power supply mould group 104.Wherein, the touch screen driving circuit
107 are electrically connected with the antenna modules 108, touch module 106 and power supply mould group 104 respectively.
Wherein, which is used to receive the wireless signal of external electronic device sending, and issues 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 terminals such as mobile phone, is covered on the display screen 102 of mobile terminal.
The power supply mould group 104 is used to power to each electricity consumption mould group of the electronic equipment.
The touch screen driving circuit 107 is powered using the touch module 106 that supplies voltage to that power supply mould group 104 provides,
So that touch module 106 generates touch-control sensing electric field, to incude user to the touch control operation of touch module 106.
In some embodiments, which includes the first comparing unit 10, switch unit 20, charge
Pump 30 and current limiting unit 40.The comparison voltage end of first comparing unit 10 is connect with antenna modules 108, to detect antenna mould
The intensity for the wireless signal that group 108 receives.The reference voltage terminal of first comparing unit 10 accesses the first predeterminated voltage V0 and makees
For benchmark voltage.The output end of first comparing unit 10 is connect with the control terminal of the switch unit 20, the switch unit 20
First output end connects 30 with charge pump and connects, and the second output terminal of the switch unit 20 is connect with the current limiting unit 40, the charge pump
30 and current limiting unit 40 connect respectively with touch module 106.
Wherein, which can be comparison circuit, such as the common comparison being made of operational amplifier is electric
Road.It exports a control signal to switch unit 20 according to comparison result.
The switch unit 20 can for one input two output gating circuits, according to control signal under selectively with this
Charge pump 30 or the current limiting unit 40 connection.
Wherein, in some embodiments, as shown in figure 4, the switch unit 20 includes the first triode Q1, the second triode
Q2 and inverter cricuit 21.The input terminal of the inverter cricuit 21 is connect with the output end of first comparing unit 10, reverse phase electricity
The output end on road 21 is connect with the control terminal of second triode Q2, the output end and the current limiting unit 40 of second triode Q2
Connection, the control terminal of first triode Q1 are connect with the output end of first comparing unit 10, and first triode Q1's is defeated
Outlet is connect with the charge pump 30.The input terminal of the first triode Q1 and the second triode Q2 connect and as the switching lists
The input terminal of member 20 accesses supply voltage VCC.In the present embodiment, supply voltage VCC is provided by the power supply mould group 104.
The first triode Q1 and the second triode Q2 is field effect transistor, it is of course also possible to be transistor.One or three pole
Pipe Q1 is identical as the switching characteristic of the second triode Q2, conducting or conducting when low level when be control terminal being high level.First
Triode Q1 and the second triode Q2 is NMOS field effect transistor.
Wherein, which can be CMOS inverter cricuit, be used to export 10 output end of the first comparing unit
Voltage signal reverse phase, such as low level becomes high level, and high level becomes low level so that the first triode Q1 with
The switch conditions of second triode Q2 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 two pole of constant current
Pipe.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 third transistor Q3 and the 4th triode
Q4, the output end of the first comparing unit 10 connect with the control terminal of third transistor Q3 and the control terminal of the 4th triode Q4 respectively
It connects.The input terminal of the input terminal of third transistor Q3 and the 4th triode Q4 are respectively connected to supply voltage VCC, third transistor
The output end of Q3 is connect with charge pump 30, and the output end of the 4th triode Q4 is connect with the current limiting unit 40, and the three or three
The switching characteristic of pole pipe Q3 and the 4th triode Q4 are on the contrary, make third transistor Q3 and the 4th triode Q4 receive first
When the output control signal of comparing unit 10, switch state is opposite.Wherein.Third transistor is NMOS tube, the 4th triode
For PMOS tube.
When electronic device works, antenna modules 108 receive the wireless signal that external equipment issues, first comparing unit 10
The range value of the received wireless signal of antenna modules 108 is compared with the first predeterminated voltage, when the range value is less than first
When predeterminated voltage, illustrate interference that touch module 106 and charge pump 80 generate than more serious, therefore switch unit 20 and charge
Pump 30 is disconnected and is connected with current limiting unit 40, and the supply voltage that power supply mould group 104 provides is supplied to by current limiting unit
Touch module 106, to avoid interference of the boosting of charge pump 30 to antenna modules 108.When the range value is greater than the first default electricity
When pressure, specification touch module 106 and charge pump 30 are weaker to the interference of antenna modules 108 or noiseless, therefore, normally
Using charge pump 30, switch unit 20 is connected to charge pump 30, and is disconnected with current limiting unit 40.
From the foregoing, it will be observed that touch screen driving circuit provided in an embodiment of the present invention is by detecting what antenna modules received
When signal strength is lower than the first preset voltage value, driving voltage is not boosted by the charge pump and is directly transmitted by current limiting unit
The touch module is given, to reduce interference of the touch module for antenna modules received signal.
Fig. 6 is please referred to, in further embodiments, which 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 connect with antenna modules 108, is received with detecting antenna modules 108
Wireless signal intensity.The reference voltage terminal of first comparing unit 10 accesses the first predeterminated voltage as reference voltage.It should
The output end of first comparing unit 10 is connect with the control terminal of the switch unit 20, the first output end and electricity of the switch unit 20
Lotus pump even 30 connects, and the second output terminal of the switch unit 20 is connect with the current limiting unit 40, the charge pump 30 and current limiting unit
40 connect with touch module 106 respectively.The control terminal of first switch unit 50 is connected to switch unit 20 and charge pump 30
At common node, the input terminal of first switch unit 50 is connect to detect the letter that antenna modules 108 receive with antenna modules 108
Number intensity, the output end of first switch unit 50 end compared with the second comparing unit 60 connect, 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 connect with the control terminal of second switch unit 70,
Charge pump 30 is connect by second switch unit 70 with touch module 106.
First switch unit 50 is connected when switch unit 20 is connected to charge pump 30, and the second comparing unit 60 is by antenna modules
300 signal strengths received are compared with the second predeterminated voltage V1, when signal strength is greater than the second predeterminated voltage, second
Comparing unit exports Continuity signal and to second switch unit 70 second switch unit 70 is connected, when signal strength is less than second
When 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 all can be triode, such as three pole of field-effect
Pipe or transistor.Second comparing unit 60 can be comparison circuit, such as the common ratio being made of operational amplifier
Compared with circuit.It exports a control signal to second switch unit 20 according to comparison result.
When electronic device works, antenna modules 108 receive the wireless signal that external equipment issues, first comparing unit 10
The range value of the received wireless signal of antenna modules 108 is compared with the first predeterminated voltage, when the range value is less than first
When predeterminated voltage, illustrate interference that touch module 106 and charge pump 80 generate than more serious, therefore switch unit 20 and charge
Pump 30 is disconnected and is connected with current limiting unit 40, and the supply voltage that power supply mould group 104 provides is supplied to by current limiting unit
Touch module 106, to avoid interference of the boosting of charge pump 30 to antenna modules 108.When the range value is greater than the first default electricity
When pressure, specification touch module 106 and charge pump 30 are weaker to the interference of antenna modules 108 or noiseless, therefore, normally
Using charge pump 30, switch unit 20 is connected to charge pump 30, and is disconnected further with current limiting unit 40, by not
300 received signal intensity of antenna modules is detected in the case where using charge pump 30, further can not use charge pump 30
When, if the touch module 106 still generates interference to antenna modules 300, driving electricity will not be provided to the antenna modules 300
Pressure, to thoroughly eliminate the interference to antenna modules 300.
In the description of this specification, reference term " embodiment ", " certain embodiments ", " schematically implementation
What the description of mode ", " example ", " specific example " or " some examples " etc. meant to describe in conjunction with the embodiment or example
Particular features, structures, materials, or characteristics are contained at least one embodiment or example of the invention.In this specification
In, schematic expression of the above terms are not necessarily referring to identical embodiment or example.Moreover, the specific spy of description
Sign, structure, material or feature can be combined in any suitable manner in any one or more embodiments or example.
In conclusion although the present invention has been disclosed above in the preferred embodiment, but above preferred embodiment is not to limit
The system present invention, those skilled in the art can make various changes and profit without departing from the spirit and scope of the present invention
Decorations, therefore protection scope of the present invention subjects to the scope of the claims.
In conclusion although the present invention has been disclosed above in the preferred embodiment, but above preferred embodiment is not to limit
The system present invention, those skilled in the art can make various changes and profit without departing from the spirit and scope of the present invention
Decorations, therefore protection scope of the present invention subjects to the scope of the claims.
Claims (10)
1. a kind of touch screen driving circuit is used in electronic equipment, which has antenna modules and touch module,
It is characterized in that, which includes 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 greater than first
It is connected to when predeterminated voltage with charge pump, so that charge pump is supplied to touch module after supply voltage boosts；And in day
Line mould group is connected to when receiving the range value of signal less than the first predeterminated voltage with current limiting unit, to give touching by the current limiting unit
Control the power supply of mould group, wherein the range value is greater than the first predeterminated voltage and indicates the touch module and the charge pump to institute
The interference for stating antenna modules is weaker or noiseless, the range value less than the first predeterminated voltage indicate the touch module and
The charge pump is stronger to the interference of the antenna modules；
Antenna modules receive the signal of Base Transmitter, and switch unit is greater than first in advance in the range value that antenna modules receive signal
If being connected to when voltage with charge pump, so that charge pump is supplied to touch module after supply voltage boosts；And in antenna modules
It is connected to when receiving the range value of signal less than the first predeterminated voltage with current limiting unit, to pass through the current limiting unit to touch module
Power supply, is in preset range so that electronic equipment is returned to the range value of the signal of base station.
2. touch screen driving circuit according to claim 1, which is characterized in that it further include the first comparing unit, described
One comparing unit is connect with antenna modules, and antenna modules are received the range value of signal and the first preset voltage value compares
Compared with, and comparison result is sent to switch unit.
3. touch screen driving circuit according to claim 2, which is characterized in that the switch unit include inverter cricuit,
First triode and the second triode, the input terminal and the one or three of the output end of first comparing unit, inverter cricuit
The control terminal of pole pipe is sequentially connected, and the output end of first comparing unit is connect with the control terminal of the second triode；
The input terminal of first triode and the input terminal of the second triode are respectively connected to supply voltage, the one or three pole
The output end of pipe is connect with the charge pump, and the output end of second triode is connect with the current limiting unit, and described first
Triode is identical as the switching characteristic of the second triode.
4. touch screen driving circuit according to claim 3, which is characterized in that first triode and the two or three pole
Pipe is NMOS tube.
5. touch screen driving circuit according to claim 2, which is characterized in that the switch unit includes third transistor
And the 4th triode, the output end of first comparing unit respectively with the control terminal of third transistor and the 4th triode
Control terminal connection；
The input terminal of the input terminal of the third transistor and the 4th triode is respectively connected to supply voltage, the three or three pole
The output end of pipe is connect with the charge pump, and the output end of the 4th triode is connect with the current limiting unit, the third
Triode is opposite with the switching characteristic of the 4th triode.
6. touch screen driving circuit according to claim 5, which is characterized in that the third transistor is NMOS tube, institute
Stating the 4th triode is PMOS tube.
7. touch screen driving circuit according to claim 1, which is characterized in that the current-limiting circuit is current-limiting resistance.
8. touch screen driving circuit according to claim 1, which is characterized in that the current-limiting circuit is current regulator diode.
9. touch screen driving circuit according to claim 1, which is characterized in that further include the second comparing unit, first open
Close unit, second switch unit；
The first switch unit is connect with the common node of switch unit and charge pump, the first switch element antenna mould
Group is connected to detect the range value for the signal that antenna modules receive, and the first switch unit, the second comparing unit, second open
It closes unit to be sequentially connected, the charge pump is connect by the second switch unit with touch module；
First switch unit is connected when the switch unit is connected to the charge pump, when the range value of the signal is greater than second
When predeterminated voltage, the second comparing unit exports Continuity signal and to second switch unit second switch unit is connected；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
The cut-off of two switch units.
10. a kind of electronic equipment, which is characterized in that including the described in any item touch screen driving circuits of claim 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 CN107037930A (en) | 2017-08-11 |
| CN107037930B true CN107037930B (en) | 2019-10-25 |
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| 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) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| 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 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN105896959B (en) * | 2015-02-15 | 2019-03-08 | 天工方案公司 | Staggered dual output charge pump |
| TWI537932B (en) * | 2015-04-01 | 2016-06-11 | 矽創電子股份有限公司 | Power Circuit, Gate Driving Circuit and Display Module |
| CN105404416B (en) * | 2015-10-23 | 2018-01-19 | 广东欧珀移动通信有限公司 | Touch-screen anti-disturbance method and device |
| 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 |
-
2017
- 2017-05-09 CN CN201710322123.0A patent/CN107037930B/en active Active
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Also Published As
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|---|---|
| CN107037930A (en) | 2017-08-11 |
| WO2018205834A1 (en) | 2018-11-15 |
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Address after: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Applicant after: OPPO Guangdong Mobile Communications Co., Ltd. Address before: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Applicant before: Guangdong OPPO Mobile Communications Co., Ltd. |
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