CN106910454A - The display panel control circuit of electronic installation, display screen and electronic installation - Google Patents
The display panel control circuit of electronic installation, display screen and electronic installation Download PDFInfo
- Publication number
- CN106910454A CN106910454A CN201710322122.6A CN201710322122A CN106910454A CN 106910454 A CN106910454 A CN 106910454A CN 201710322122 A CN201710322122 A CN 201710322122A CN 106910454 A CN106910454 A CN 106910454A
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- CN
- China
- Prior art keywords
- switch
- frequency
- electronic installation
- control circuit
- signal
- 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.)
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Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/06—Handling electromagnetic interferences [EMI], covering emitted as well as received electromagnetic radiation
Abstract
The embodiment of the invention discloses a kind of display panel control circuit of electronic installation, display screen and electronic installation, the display panel control circuit of electronic installation includes frequency controller and switch module；Frequency controller is electrically connected with switch module；Switch module, for the voltage strength of control display screen control circuit output to display screen；Frequency controller, when the difference of the radio frequency signal frequency that the harmonic frequency signal for being produced in switch module work is received with electronic installation is less than predetermined threshold value, adjusts the working frequency of switch module, to remove interference of the harmonic signal switch module to radiofrequency signal.The program reduces interference of the switch module to radiofrequency signal by adjusting the working frequency of switch module.
Description
Technical field
The present invention relates to electronic technology field, and in particular to a kind of display panel control circuit of electronic installation, display screen and
Electronic installation.
Background technology
With the development of the communication technology, how to avoid the interference of radio communication turns into important topic urgently to be resolved hurrily.Radio frequency
Communication interference both include radio system inside between interference, the interference for also being communicated to radio system including other systems, than
Motor system, camera system and display screen system such as in intelligent terminal.
Wherein, charge pump that the interference that display screen system communicates to radio system is derived mainly from it etc. controls circuit.Electricity
Lotus pump realizes being raised and lowered for voltage by the switch inside constantly switching, but the process of the continuous switching of switch can be produced
Harmonic component, causes to interfere radio system communication.
The content of the invention
The embodiment of the present invention provides a kind of display panel control circuit of electronic installation, display screen and electronic installation, can drop
The low interference to radio system communication.
The embodiment of the present invention provides a kind of display panel control circuit of electronic installation, including：Frequency controller and switching molding
Block；
Frequency controller is electrically connected with switch module；
Switch module, for the voltage strength of control display screen control circuit output to display screen；
Frequency controller, the radio frequency that the harmonic frequency signal for being produced in switch module work is received with electronic installation
When the difference of signal frequency is less than predetermined threshold value, the working frequency of switch module is adjusted, to remove harmonic signal to radiofrequency signal
Interference.
The embodiment of the present invention additionally provides a kind of display screen, including：
The display panel control circuit of substrate and the part or all of electronic installation such as the embodiment of the present invention；
The display panel control circuit of electronic installation is arranged on substrate, for the harmonic signal produced in switch module work
When the difference of the radio frequency signal frequency that frequency is received with electronic installation is less than predetermined threshold value, the work of switch module is adjusted frequently
Rate, to remove the interference of harmonic signal.
The embodiment of the present invention also includes a kind of electronic installation, including such as the part or all of electronic installation of the embodiment of the present invention
Display panel control circuit, or as the embodiment of the present invention all or part of display screen.
The embodiment of the present invention is using the harmonic frequency signal and penetrating that electronic installation is received produced in switch module work
When the difference of frequency signal frequency is less than predetermined threshold value, the working frequency of switch module is adjusted, to remove harmonic signal switch module
Interference to radiofrequency signal.The program can reduce interference of the switch module to radiofrequency signal.
Brief description of the drawings
Technical scheme in order to illustrate more clearly the embodiments of the present invention, below will be to that will make needed for embodiment description
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those skilled in the art, on the premise of not paying creative work, can also obtain other attached according to these accompanying drawings
Figure.
Fig. 1 is the structural representation of the electronic installation of the preferred embodiment of the present invention.
Fig. 2 is the structural representation of the display screen of the preferred embodiment of the present invention.
Fig. 3 is the structural representation of the display panel control circuit of the electronic installation of the preferred embodiment of the present invention.
Fig. 4 is another structural representation of the display panel control circuit of the electronic installation of the preferred embodiment of the present invention.
Fig. 5 is the schematic diagram of a scenario of the display panel control circuit of the electronic installation of the preferred embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, the every other implementation that those skilled in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of protection of the invention.
Term " first ", " second ", " the 3rd " and " the 4th " in the present invention etc. be for distinguishing different objects, rather than
For describing particular order.Additionally, term " comprising " and " having " and their any deformations, it is intended that covering is non-exclusive
Comprising.Process, method, system, product or the equipment for for example containing series of steps or module are not limited to what is listed
Step or module, but alternatively also include the step of not listing or module, or alternatively also include for these processes, side
Method, product or equipment intrinsic other steps or module.
Referenced herein " embodiment " is it is meant that the special characteristic, structure or the characteristic that describe can be wrapped in conjunction with the embodiments
Containing at least one embodiment of the present invention.Each position in the description occur the phrase might not each mean it is identical
Embodiment, nor the independent or alternative embodiment with other embodiments mutual exclusion.Those skilled in the art explicitly and
Implicitly understand, embodiment described herein can be combined with other embodiments.
The embodiment of the invention provides a kind of display panel control circuit of electronic installation, display screen and electronic installation.Below
To be described in detail respectively.
Fig. 1 is refer to, Fig. 1 is a kind of structural representation of electronic installation provided in an embodiment of the present invention.Wherein, electronics dress
It can be the equipment such as smart mobile phone, panel computer to put.
Electronic installation includes the display panel control circuit of electronic installation, or display screen.As shown in figure 1, in some embodiments
In, electronic installation 1000 includes the display panel control circuit 10 of electronic installation.In certain embodiments, electronic installation 1000 includes
Display screen 100.
It should be noted that the display panel control circuit 10 of the electronic installation can be arranged in display screen 100.Specifically
, display screen 100 also includes substrate 20, and the display panel control circuit 10 of the electronic installation is arranged on the substrate 20.
Fig. 2 is refer to, Fig. 2 is a kind of structural representation of display screen provided in an embodiment of the present invention.Wherein, display screen can
To be arranged in the electronic installations such as smart mobile phone, panel computer.
Display screen 100 includes the display panel control circuit 10 of substrate 20 and electronic installation, the display screen control of electronic installation
Circuit 10 is set on the base plate 20.Wherein, substrate 20 can be rigid substrates, or flexible base board.Substrate 20 can be saturating
It is bright, it is also possible to opaque.Substrate 20 is not limited specifically herein.
Fig. 3 is refer to, Fig. 3 is that a kind of structure of the display panel control circuit of electronic installation provided in an embodiment of the present invention is shown
It is intended to.
The display panel control circuit 10 of electronic installation includes frequency controller 11 and switch module 12.Wherein, frequency control is stated
Device processed 11 is electrically connected with switch module 12.Switch module 12 is used for control display screen control circuit 10 and exports to display screen 100
Voltage strength.The harmonic frequency signal that frequency controller 11 is used to be produced in the work of switch module 11 connects with electronic installation 1000
When the difference of the radio frequency signal frequency for receiving is less than predetermined threshold value, the working frequency of switch module 11 is adjusted, to remove harmonic wave letter
Number interference of the switch module to radiofrequency signal.
In certain embodiments, as shown in figure 4, switch module 12 includes first switch 121 and second switch 122, first
Switch 121 and second switch 122 have different working frequencies.
When frequency controller 11 is used to be connected with first switch 121, if the harmonic signal that the work of first switch 121 is produced is frequently
The difference of the radio frequency signal frequency that rate is received with electronic installation 1000 is less than predetermined threshold value, then switch from first switch 121 and connect
To second switch 122.When frequency controller 11 is used to be connected with second switch 122, if the harmonic wave that the work of second switch 122 is produced
The difference of the radio frequency signal frequency that signal frequency is received with electronic installation 1000 is less than predetermined threshold value, then cut from second switch 122
Change and be connected to first switch 121.
Assuming that producing first harmonic signal when first switch 121 works, second harmonic letter is produced when second switch 122 works
Number.Because first switch 121 and second switch 122 have different working frequencies, therefore first harmonic signal and second harmonic
Signal has different frequencies.Such as first harmonic signal frequency is 300KHZ, second harmonic signal frequency is 500KHZ.
Further, it is assumed that predetermined threshold value is 80KHZ, the radio frequency signal frequency that electronic installation 1000 is received is 330KHZ.
If the switch of work at present is first switch 121, due to first harmonic signal frequency and radio frequency signal frequency that it is produced
Difference 30KHZ, is that the two difference will switch less than predetermined threshold value, therefore frequency controller 11 from first switch 121 less than 80KHZ
Second switch 122 is connected to, second harmonic signal frequency differs 170KHZ with radio frequency signal frequency, is that the two is poor more than 80KHZ
Value is not less than predetermined threshold value, therefore can reduce interference of the switch module to radiofrequency signal.
Similarly, if the switch of work at present be second switch 122, and its produce second harmonic signal frequency and radio frequency
The difference of signal frequency is less than predetermined threshold value, then frequency controller 11 is connected to first switch 121 from the switching of second switch 122.
In order to ensure that the switch for reconnecting does not interfere with radiofrequency signal, in certain embodiments, the work of first switch
Difference between frequency and the working frequency of second switch is more than 600KHZ.
In certain embodiments, frequency controller 11 includes single-pole double-throw switch (SPDT) 111, and single-pole double-throw switch (SPDT) 111 includes public affairs
End, the first gating end and second gate end altogether.First gating end is connected with first switch 121, the second gating end and second switch
122 connections.
When single-pole double-throw switch (SPDT) 111 is used to be connected with first switch 121, if the harmonic wave letter that the work of first switch 121 is produced
The difference of the radio frequency signal frequency that number frequency is received with electronic installation 1000 is less than predetermined threshold value, then by common port and the second gating
End connection, is connected with switching to second switch 122.When single-pole double-throw switch (SPDT) 111 is used to be connected with second switch 122, if the
The difference of the radio frequency signal frequency that the harmonic frequency signal that the work of two switch 122 is produced is received with electronic installation 1000 is less than default
, then with the first gating end be connected common port by threshold value, is connected with first switch 121 with switching to.
In certain embodiments, frequency controller 11 can be including relay, triode etc., you can with by relay,
Triode etc. come realize the switching between frequency controller 11 and first switch 121, second switch 122 connect.
In certain embodiments, frequency controller 11 includes drive circuit 112, and switch module 12 includes a switch 123.
Drive circuit 112 is electrically connected with switch 123.Drive circuit 123 is used for the harmonic frequency signal produced in switch and electricity
When the difference of the radio frequency signal frequency that sub-device 1000 is received is less than predetermined threshold value, the working frequency of regulation switch 123.Citing comes
Say, it is assumed that predetermined threshold value is 50KHZ, the radio frequency signal frequency that electronic installation 1000 is received is 500KHZ, the work generation of switch 123
Harmonic frequency signal be 520KHZ, now can by 112 controlling switch of drive circuit 123 switch frequency.
In certain embodiments, switch module 12 includes multiple switch, and each switch has different working frequencies, frequency
Controller includes single pole multiple throw.Single pole multiple throw is connected with multiple switch.Single pole multiple throw is used to switch work one
The difference of the radio frequency signal frequency that the harmonic frequency signal that work is produced is received with electronic installation 1000 is less than predetermined threshold value constantly,
Switch connection between other switches.
The display panel control circuit 10 of electronic installation also includes detection module 13, and detection module 13 is used to detect switch
The difference of the radio frequency signal frequency that the harmonic frequency signal that module work is produced is received with electronic installation 1000 is less than predetermined threshold value
When, generate frequency control signal.Frequency controller 11 is used to be adjusted according to frequency control signal the working frequency of switch module.
Frequency information is carried in frequency control signal.As an example it is assumed that predetermined threshold value is 40KHZ, harmonic frequency signal
It is 200KHZ, radio frequency signal frequency is 180KHZ.Harmonic frequency signal 20KHZ higher than radio frequency signal frequency is then understood, is now given birth to
Into frequency control signal can be the working frequency for properly increasing switch module, or the work for substantially reducing switch module
Working frequency.
In certain embodiments, frequency controller 11 is additionally operable to the harmonic frequency signal produced in switch module work and electricity
When the difference of the radio frequency signal frequency that sub-device 1000 is received is less than predetermined threshold value, to base station transmission frequency adjust request, so that
The frequency of the radiofrequency signal that base station sends according to request adjustment.
In certain embodiments, frequency controller 11 also includes return value sending module 123.Return value sending module 123
Harmonic frequency signal for being produced in switch module work is small with the difference of the radio frequency signal frequency that electronic installation 1000 is received
When predetermined threshold value, reduction returns to the return value of base station, so that the frequency of the radiofrequency signal that base station adjustment sends.
After the radiofrequency signal of base station transmission is received, return value sending module will send a return value to base station, with
Make base station according to the return value to send radiofrequency signal.Assuming that when the return value for receiving is 100, base station persistently sends
The radiofrequency signal of 200KHZ.As shown in figure 5, when the harmonic frequency signal that the work of switch module 12 is produced is 180, with electronic installation
The difference 20 of 1000 radio frequency signal frequencies 200 for receiving is less than predetermined threshold value 50, when producing interference to radiofrequency signal, return value hair
Sending module 123 will send return value 80 to base station, and base station receives the frequency of the radiofrequency signal that return value is after 80s, and raising is sent
Rate, such as sends the radiofrequency signal of 250KHZ.
The display screen of this preferred embodiment, by the harmonic frequency signal and electronic installation that are produced in switch module work
When the difference of 1000 radio frequency signal frequencies for receiving is less than predetermined threshold value, the working frequency of switch module, removal harmonic wave letter are adjusted
Number interference of the switch module to radiofrequency signal, to reduce interference of the switch module to radiofrequency signal.
The electronic installation of this preferred embodiment, by the harmonic frequency signal and electronic installation that are produced in switch module work
When the difference of 1000 radio frequency signal frequencies for receiving is less than predetermined threshold value, the working frequency of switch module, removal harmonic wave letter are adjusted
Number interference of the switch module to radiofrequency signal, to reduce interference of the switch module to radiofrequency signal.
Above to a kind of display panel control circuit of electronic installation provided in an embodiment of the present invention, display screen and electronic installation
It is described in detail, its each functional module can be integrated in a process chip, or the independent physics of modules
In the presence of, it is also possible to two or more modules are integrated in a module.Above-mentioned integrated module both can be using hardware
Form is realized, it would however also be possible to employ the form of software function module is realized.Specific case used herein is to principle of the invention
And implementation method is set forth, the explanation of above example is only intended to help and understands that the method for the present invention and its core are thought
Think；Simultaneously for those skilled in the art, according to thought of the invention, can in specific embodiments and applications
There is change part, in sum, this specification content should not be construed as limiting the invention.
Claims (10)
1. a kind of display panel control circuit of electronic installation, it is characterised in that including frequency controller and switch module；
The frequency controller is electrically connected with the switch module；
The switch module, for the voltage strength of control display screen control circuit output to display screen；
The frequency controller, what harmonic frequency signal and electronic installation for being produced in switch module work were received
When the difference of radio frequency signal frequency is less than predetermined threshold value, the working frequency of the switch module is adjusted, believed with removing the harmonic wave
Interference number to the radiofrequency signal.
2. the display panel control circuit of electronic installation according to claim 1, it is characterised in that the switch module includes
First switch and second switch, the first switch and second switch have different working frequencies；
The frequency controller, for when being connected with the first switch, if the harmonic wave letter that first switch work is produced
The difference of the radio frequency signal frequency that number frequency is received with the electronic installation is then switched to and second switch less than predetermined threshold value
Connection；
The frequency controller, for when being connected with the second switch, if the harmonic wave letter that second switch work is produced
The difference of the radio frequency signal frequency that number frequency is received with the electronic installation is then switched to and described first less than predetermined threshold value
Switch connection.
3. the display panel control circuit of electronic installation according to claim 2, it is characterised in that the frequency controller bag
Single-pole double-throw switch (SPDT) is included, the single-pole double-throw switch (SPDT) includes common port, the first gating end and the second gating end；
The first gating end is connected with the first switch, and the second gating end is connected with the second switch；
The single-pole double-throw switch (SPDT), for when being connected with the first switch, if the harmonic wave that first switch work is produced
The difference of the radio frequency signal frequency that signal frequency is received with the electronic installation is less than predetermined threshold value, by the common port and institute
The connection of the second gating end is stated, is connected with the second switch with switching to；
The single-pole double-throw switch (SPDT), for when being connected with the second switch, if the harmonic wave that second switch work is produced
The difference of the radio frequency signal frequency that signal frequency is received with the electronic installation is less than predetermined threshold value, by the common port and institute
The connection of the first gating end is stated, is connected with the first switch with switching to.
4. the display panel control circuit of electronic installation according to claim 2, it is characterised in that the work of the first switch
Difference between the working frequency of working frequency and the second switch is more than 600KHZ.
5. the display panel control circuit of electronic installation according to claim 1, it is characterised in that the frequency controller bag
Drive circuit is included, the switch module includes a switch；
The drive circuit is electrically connected with the switch；
The drive circuit, for the harmonic frequency signal produced in the switch and penetrating that the electronic installation is received
When the difference of frequency signal frequency is less than predetermined threshold value, the working frequency of the switch is adjusted.
6. the display panel control circuit of electronic installation according to claim 1, it is characterised in that the frequency controller,
It is additionally operable to the radio frequency signal frequency that harmonic frequency signal is received with the electronic installation produced in switch module work
Difference when being less than predetermined threshold value, to base station transmission frequency adjust request, so that the base station sends according to the request adjustment
Radiofrequency signal frequency.
7. the display panel control circuit of electronic installation according to claim 6, it is characterised in that the frequency controller is also
Including return value sending module；
The return value sending module, for the harmonic frequency signal and the electronic installation that are produced in switch module work
When the difference of the radio frequency signal frequency for receiving is less than predetermined threshold value, reduction returns to the return value of the base station, so that described
The frequency of the radiofrequency signal that base station adjustment sends.
8. the display panel control circuit of electronic installation according to claim 1, it is characterised in that the electronic installation it is aobvious
Display screen control circuit also includes detection module, and the detection module is electrically connected with the switch module, frequency controller respectively；
The detection module, for detecting harmonic frequency signal and the electronic installation that the switch module work is produced
When the difference of the radio frequency signal frequency for receiving is less than predetermined threshold value, frequency control signal is generated；
The frequency controller, for according to the frequency control signal, adjusting the working frequency of the switch module.
9. a kind of display screen, it is characterised in that including：Substrate and the electronic installation as described in claim 1-8 any one
Display panel control circuit；
The display panel control circuit of the electronic installation is set on the substrate, for what is produced in switch module work
When the difference of the radio frequency signal frequency that harmonic frequency signal is received with electronic installation is less than predetermined threshold value, the switching molding is adjusted
The working frequency of block, to remove the interference of the harmonic signal.
10. a kind of electronic installation, it is characterised in that including the display screen as shown in claim 9, or as claim 1-8 appoints
The display panel control circuit of the electronic installation described in meaning one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710322122.6A CN106910454A (en) | 2017-05-09 | 2017-05-09 | The display panel control circuit of electronic installation, display screen and electronic installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710322122.6A CN106910454A (en) | 2017-05-09 | 2017-05-09 | The display panel control circuit of electronic installation, display screen and electronic installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106910454A true CN106910454A (en) | 2017-06-30 |
Family
ID=59210558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710322122.6A Pending CN106910454A (en) | 2017-05-09 | 2017-05-09 | The display panel control circuit of electronic installation, display screen and electronic installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106910454A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108093135A (en) * | 2017-12-15 | 2018-05-29 | 广东欧珀移动通信有限公司 | The anti-interference method and Related product of electronic equipment |
| CN111656695A (en) * | 2018-01-30 | 2020-09-11 | 三星电子株式会社 | Electronic device for reducing noise |
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| CN204290948U (en) * | 2014-12-26 | 2015-04-22 | Tcl通力电子（惠州）有限公司 | Anti-radio reception interfered circuit and radio equipment |
| CN106375048A (en) * | 2016-08-25 | 2017-02-01 | 维沃移动通信有限公司 | Antenna switch control method and apparatus of wireless local area network |
| US20170063409A1 (en) * | 2015-08-31 | 2017-03-02 | Icom Incorporated | Communication system, frequency control method, remote terminal and non-transitory computer-readable recording medium having stored therein program |
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| CN103477669A (en) * | 2011-04-04 | 2013-12-25 | 日本电气株式会社 | Mobile communications device and system |
| CN103379643A (en) * | 2012-04-11 | 2013-10-30 | 中兴通讯股份有限公司 | Method and device for eliminating interference |
| CN204290948U (en) * | 2014-12-26 | 2015-04-22 | Tcl通力电子（惠州）有限公司 | Anti-radio reception interfered circuit and radio equipment |
| US20170063409A1 (en) * | 2015-08-31 | 2017-03-02 | Icom Incorporated | Communication system, frequency control method, remote terminal and non-transitory computer-readable recording medium having stored therein program |
| CN106375048A (en) * | 2016-08-25 | 2017-02-01 | 维沃移动通信有限公司 | Antenna switch control method and apparatus of wireless local area network |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108093135A (en) * | 2017-12-15 | 2018-05-29 | 广东欧珀移动通信有限公司 | The anti-interference method and Related product of electronic equipment |
| CN111656695A (en) * | 2018-01-30 | 2020-09-11 | 三星电子株式会社 | Electronic device for reducing noise |
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Application publication date: 20170630 |
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