CN110138494A - A kind of transmitting signal interference optimization method, display module and terminal - Google Patents
A kind of transmitting signal interference optimization method, display module and terminal Download PDFInfo
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- CN110138494A CN110138494A CN201910087634.8A CN201910087634A CN110138494A CN 110138494 A CN110138494 A CN 110138494A CN 201910087634 A CN201910087634 A CN 201910087634A CN 110138494 A CN110138494 A CN 110138494A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K3/00—Jamming of communication; Counter-measures
- H04K3/60—Jamming involving special techniques
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0277—Details of the structure or mounting of specific components for a printed circuit board assembly
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Abstract
The embodiment of the invention discloses a kind of transmitting signal interference optimization method, display module and terminals, it is higher and higher for the integrated level of current smart electronics product, the position of the component and signal antenna that generate signal interference becomes to become closer to, antenna is caused to interfere the problem for becoming serious when transmitting signals, by determining that the setting plane of circuit board is reference planes；The transmitting signal of specific frequency is loaded on antenna, and the signal simulation result that signal simulation obtains transmitting signal is carried out to transmitting signal；According to reference signal simulation result, emit the smallest target area of signal interference by determining；Disturbance means are set on target area；The transmitting signal interference optimization method passes through signal simulation, it finds out and needs to interfere the smallest target area on the circuit board that interference component is arranged, the setting interference component in the target area optimizes the signal interference problem that antenna is generated in transmitting signal process by interference component.
Description
Technical field
The present invention relates to fields of communication technology, more specifically to a kind of transmitting signal interference optimization method, display mould
Group and terminal.
Background technique
Smart phone industry development till now, comprehensive screen products explosive growth.As its name suggests, the meaning shielded comprehensively is exactly
Bigger screen accounting, it has benefited from the newest packaging technology of LCD.Wherein Samsung Note8 uses COF packaging technology, COF technology handle
Chip in glass back plate is placed on the winding displacement of screen, can be thus placed directly into bottom of screen, be left more than COG
The screen space of 1.5mm.And iPhoneX/XS series has benefited from using the peculiar COP packaging technology of Samsung flexibility OLED, because its
Backboard is not glass, and the material used as winding displacement, is directly rolled over backboard just toward latter on the basis of COG in fact, thick
Degree further reduces, and the screen of COP packaging technology can accomplish real four sides Rimless.
New screen packaging technology improves the screen accounting of mobile phone, but can compress natively narrow empty regions, makes
Antenna Design difficulty increases.This patent is excessively close for LCD Driver IC and antenna distance, and caused radio frequency interference problem mentions
A kind of new solution is gone out, not only applicable and COF packaging technology, equally has good consistency to COG and COB.
Summary of the invention
The technical problem to be solved in the present invention is that the integrated level of smart electronics product is higher and higher at present, it is dry to generate signal
The position of the component and signal antenna disturbed becomes to become closer to, and antenna is caused to interfere change is serious to ask when transmitting signals
Topic provides a kind of transmitting signal interference optimization method, display module and terminal for the technical problem.
In order to solve the above technical problems, the present invention provides a kind of transmitting signal interference optimization method, the transmitting signal is dry
Disturbing optimization method includes:
The setting plane for determining circuit board is reference planes；
The transmitting signal of specific frequency is loaded on antenna, and signal simulation is carried out to the transmitting signal and obtains the hair
Penetrate the signal simulation result of signal；
Interception is located at the reference signal simulation result in the reference planes in the signal simulation result；
According to the reference signal simulation result, pass through the determination the smallest target area of transmitting signal interference；
The disturbance means are set on the target area.
Optionally, the antenna is omnidirectional antenna, and the signal simulation result obtained is three dimensional signal simulation result；
The omnidirectional antenna is located at the central point of the three dimensional signal simulation result.
Optionally, the reference planes are overlapped or close with the central point.
Optionally, the signal simulation result is the antenna gain simulation result of the transmitting signal.
Optionally, the signal simulation result in the reference planes includes: signal launch point and antenna gain curve；
The signal launch point is the central point；
The antenna gain curve is the transmitting signal of antenna transmitting, each side in the reference planes
To antenna gain distribution situation；
According to the antenna gain curve with it is described, determine the smallest target area of the transmitting signal interference.
Optionally, the determination the smallest target area of transmitting signal interference includes:
Determine the minimum antenna gain point on the gain curve；
The minimum antenna gain point is connect with the launch point, determines the minimum antenna gain point present position
Angle value；
The range of the straight line on the angle value will be located at as the target area.
Optionally, when the target area is located in the region of the circuit board, the disturbance means are arranged in institute
Target area is stated from the highest distance position of antenna；
When the target area part is located in the region of the circuit board, the disturbance means are arranged in the two weight
On the position farthest from antenna of the region of conjunction.
Further, the present invention also provides a kind of display screen modules, which is characterized in that the display screen module includes:
Drive the FPC winding displacement and backlight module of IC, carrying driving IC；
The back side of the backlight module is arranged in the FPC winding displacement, and the mesh on the FPC winding displacement is arranged in the driving IC
It marks on region；
The target area is determined by described in any item transmitting signal interference optimization methods among the above.
Further, the present invention also provides a kind of terminals, which is characterized in that the terminal includes: antenna and among the above
The display screen module；
The antenna is omnidirectional antenna, and the lower section of the display module is arranged in, close to the position of the display module.
Further, the present invention also provides a kind of computer readable storage medium, the computer readable storage mediums
It is stored with one or more program, one or more of programs can be executed by one or more processor, to realize
The step of described in any item transmitting signal interference optimization methods among the above.
Beneficial effect
The present invention provides a kind of transmitting signal interference optimization method, display screen module and terminal, for current smart electronics
The integrated level of product is higher and higher, and the position of the component and signal antenna that generate signal interference becomes to become closer to, and causes
Antenna interferes the problem for becoming serious when transmitting signals, by determining that the setting plane of circuit board is reference planes；On antenna
The transmitting signal of specific frequency is loaded, and the signal simulation result that signal simulation obtains transmitting signal is carried out to transmitting signal；Root
According to reference signal simulation result, emit the smallest target area of signal interference by determining；Interference unit is set on target area
Part；The transmitting signal interference optimization method is found out by signal simulation and needs to interfere most on the circuit board that interference component is arranged
Small target area, the setting interference component in the target area optimize antenna in transmitting signal process by chaff element
The signal interference problem that device generates.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing:
The hardware structural diagram of Fig. 1 each embodiment one optional mobile terminal to realize the present invention.
Fig. 2 is a kind of transmitting signal interference optimization method basic flow chart that first embodiment of the invention provides；
Fig. 3 is the schematic diagram of the complete machine associative simulation of second embodiment of the invention；
Fig. 4 is that the signal gain direction in plane is arranged in driving IC for the lower antenna simulation result of second embodiment of the invention
Figure；
Fig. 5 is the screen schematic diagram of second embodiment of the invention shown using the LCD of COF packaging technology production；
Fig. 6 is the antenna spectrogram when display screen of second embodiment of the invention does not work；
Antenna spectrogram when Fig. 7 is the display screen work of second embodiment of the invention.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
In subsequent description, it is only using the suffix for indicating such as " module ", " component " or " unit " of element
Be conducive to explanation of the invention, itself there is no a specific meaning.Therefore, " module ", " component " or " unit " can mix
Ground uses.
Terminal can be implemented in a variety of manners.For example, terminal described in the present invention may include such as mobile phone, plate
Computer, laptop, palm PC, personal digital assistant (Personal Digital Assistant, PDA), portable
Media player (Portable Media Player, PMP), navigation device, wearable device, Intelligent bracelet, pedometer etc. move
The fixed terminals such as dynamic terminal, and number TV, desktop computer.
It will be illustrated by taking mobile terminal as an example in subsequent descriptions, it will be appreciated by those skilled in the art that in addition to special
Except element for moving purpose, the construction of embodiment according to the present invention can also apply to the terminal of fixed type.
Referring to Fig. 1, a kind of hardware structural diagram of its mobile terminal of each embodiment to realize the present invention, the shifting
Dynamic terminal 100 may include: RF (Radio Frequency, radio frequency) unit 101, WiFi module 102, audio output unit
103, A/V (audio/video) input unit 104, sensor 105, display unit 106, user input unit 107, interface unit
108, the components such as memory 109, processor 110 and power supply 111.It will be understood by those skilled in the art that shown in Fig. 1
Mobile terminal structure does not constitute the restriction to mobile terminal, and mobile terminal may include components more more or fewer than diagram,
Perhaps certain components or different component layouts are combined.
It is specifically introduced below with reference to all parts of the Fig. 1 to mobile terminal:
Radio frequency unit 101 can be used for receiving and sending messages or communication process in, signal sends and receivees, specifically, by base station
Downlink information receive after, to processor 110 handle；In addition, the data of uplink are sent to base station.In general, radio frequency unit 101
Including but not limited to antenna, at least one amplifier, transceiver, coupler, low-noise amplifier, duplexer etc..In addition, penetrating
Frequency unit 101 can also be communicated with network and other equipment by wireless communication.Any communication can be used in above-mentioned wireless communication
Standard or agreement, including but not limited to GSM (Global System of Mobile communication, global system for mobile telecommunications
System), GPRS (General Packet Radio Service, general packet radio service), CDMA2000 (Code
Division Multiple Access 2000, CDMA 2000), WCDMA (Wideband Code Division
Multiple Access, wideband code division multiple access), TD-SCDMA (Time Division-Synchronous Code
Division Multiple Access, TD SDMA), FDD-LTE (Frequency Division
Duplexing-Long Term Evolution, frequency division duplex long term evolution) and TDD-LTE (Time Division
Duplexing-Long Term Evolution, time division duplex long term evolution) etc..
WiFi belongs to short range wireless transmission technology, and mobile terminal can help user to receive and dispatch electricity by WiFi module 102
Sub- mail, browsing webpage and access streaming video etc., it provides wireless broadband internet access for user.Although Fig. 1 shows
Go out WiFi module 102, but it is understood that, and it is not belonging to must be configured into for mobile terminal, it completely can be according to need
It to omit within the scope of not changing the essence of the invention.
Audio output unit 103 can be in call signal reception pattern, call mode, record mould in mobile terminal 100
When under the isotypes such as formula, speech recognition mode, broadcast reception mode, by radio frequency unit 101 or WiFi module 102 it is received or
The audio data stored in memory 109 is converted into audio signal and exports to be sound.Moreover, audio output unit 103
Audio output relevant to the specific function that mobile terminal 100 executes can also be provided (for example, call signal receives sound, disappears
Breath receives sound etc.).Audio output unit 103 may include loudspeaker, buzzer etc..
A/V input unit 104 is for receiving audio or video signal.A/V input unit 104 may include graphics processor
(Graphics Processing Unit, GPU) 1041 and microphone 1042, graphics processor 1041 is in video acquisition mode
Or the image data of the static images or video obtained in image capture mode by image capture apparatus (such as camera) carries out
Reason.Treated, and picture frame may be displayed on display unit 106.Through graphics processor 1041, treated that picture frame can be deposited
Storage is sent in memory 109 (or other storage mediums) or via radio frequency unit 101 or WiFi module 102.Mike
Wind 1042 can connect in telephone calling model, logging mode, speech recognition mode etc. operational mode via microphone 1042
Quiet down sound (audio data), and can be audio data by such acoustic processing.Audio that treated (voice) data can
To be converted to the format output that can be sent to mobile communication base station via radio frequency unit 101 in the case where telephone calling model.
Microphone 1042 can be implemented various types of noises elimination (or inhibition) algorithms and send and receive sound to eliminate (or inhibition)
The noise generated during frequency signal or interference.
Mobile terminal 100 further includes at least one sensor 105, such as optical sensor, motion sensor and other biographies
Sensor.Specifically, optical sensor includes ambient light sensor and proximity sensor, wherein ambient light sensor can be according to environment
The light and shade of light adjusts the brightness of display panel 1061, and proximity sensor can close when mobile terminal 100 is moved in one's ear
Display panel 1061 and/or backlight.As a kind of motion sensor, accelerometer sensor can detect in all directions (general
For three axis) size of acceleration, it can detect that size and the direction of gravity when static, can be used to identify the application of mobile phone posture
(such as horizontal/vertical screen switching, dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, percussion) etc.；
The fingerprint sensor that can also configure as mobile phone, pressure sensor, iris sensor, molecule sensor, gyroscope, barometer,
The other sensors such as hygrometer, thermometer, infrared sensor, details are not described herein.
Display unit 106 is for showing information input by user or being supplied to the information of user.Display unit 106 can wrap
Display panel 1061 is included, liquid crystal display (Liquid Crystal Display, LCD), Organic Light Emitting Diode can be used
Forms such as (Organic Light-Emitting Diode, OLED) configure display panel 1061.
User input unit 107 can be used for receiving the number or character information of input, and generate the use with mobile terminal
Family setting and the related key signals input of function control.Specifically, user input unit 107 may include touch panel 1071 with
And other input equipments 1072.Touch panel 1071, also referred to as touch screen collect the touch operation of user on it or nearby
(for example user uses any suitable objects or attachment such as finger, stylus on touch panel 1071 or in touch panel 1071
Neighbouring operation), and corresponding attachment device is driven according to preset formula.Touch panel 1071 may include touch detection
Two parts of device and touch controller.Wherein, the touch orientation of touch detecting apparatus detection user, and detect touch operation band
The signal come, transmits a signal to touch controller；Touch controller receives touch information from touch detecting apparatus, and by it
It is converted into contact coordinate, then gives processor 110, and order that processor 110 is sent can be received and executed.In addition, can
To realize touch panel 1071 using multiple types such as resistance-type, condenser type, infrared ray and surface acoustic waves.In addition to touch panel
1071, user input unit 107 can also include other input equipments 1072.Specifically, other input equipments 1072 can wrap
It includes but is not limited in physical keyboard, function key (such as volume control button, switch key etc.), trace ball, mouse, operating stick etc.
It is one or more, specifically herein without limitation.
Further, touch panel 1071 can cover display panel 1061, when touch panel 1071 detect on it or
After neighbouring touch operation, processor 110 is sent to determine the type of touch event, is followed by subsequent processing device 110 according to touch thing
The type of part provides corresponding visual output on display panel 1061.Although in Fig. 1, touch panel 1071 and display panel
1061 be the function that outputs and inputs of realizing mobile terminal as two independent components, but in certain embodiments, it can
The function that outputs and inputs of mobile terminal is realized so that touch panel 1071 and display panel 1061 is integrated, is not done herein specifically
It limits.
Interface unit 108 be used as at least one external device (ED) connect with mobile terminal 100 can by interface.For example,
External device (ED) may include wired or wireless headphone port, external power supply (or battery charger) port, wired or nothing
Line data port, memory card port, the port for connecting the device with identification module, audio input/output (I/O) end
Mouth, video i/o port, ear port etc..Interface unit 108 can be used for receiving the input from external device (ED) (for example, number
It is believed that breath, electric power etc.) and the input received is transferred to one or more elements in mobile terminal 100 or can be with
For transmitting data between mobile terminal 100 and external device (ED).
Memory 109 can be used for storing software program and various data.Memory 109 can mainly include storing program area
The storage data area and, wherein storing program area can (such as the sound of application program needed for storage program area, at least one function
Sound playing function, image player function etc.) etc.；Storage data area can store according to mobile phone use created data (such as
Audio data, phone directory etc.) etc..In addition, memory 109 may include high-speed random access memory, it can also include non-easy
The property lost memory, a for example, at least disk memory, flush memory device or other volatile solid-state parts.
Processor 110 is the control centre of mobile terminal, utilizes each of various interfaces and the entire mobile terminal of connection
A part by running or execute the software program and/or module that are stored in memory 109, and calls and is stored in storage
Data in device 109 execute the various functions and processing data of mobile terminal, to carry out integral monitoring to mobile terminal.Place
Managing device 110 may include one or more processing units；Preferably, processor 110 can integrate application processor and modulatedemodulate is mediated
Manage device, wherein the main processing operation system of application processor, user interface and application program etc., modem processor is main
Processing wireless communication.It is understood that above-mentioned modem processor can not also be integrated into processor 110.
Mobile terminal 100 can also include the power supply 111 (such as battery) powered to all parts, it is preferred that power supply 111
Can be logically contiguous by power-supply management system and processor 110, to realize management charging by power-supply management system, put
The functions such as electricity and power managed.
Although Fig. 1 is not shown, mobile terminal 100 can also be including bluetooth module etc., and details are not described herein.
Based on above-mentioned mobile terminal hardware configuration, each embodiment of the method for the present invention is proposed.
First embodiment
Fig. 2 is a kind of transmitting signal interference optimization method basic flow chart provided in this embodiment, the transmitting signal interference
Optimization method includes:
S201, reference planes are determined.
In this step, reference planes are that the plane of circuit board is arranged, and circuit board can be PCB circuit board, flexible PCB electricity
Road plate and thin film circuit etc..
S202, signal simulation result is obtained.
The transmitting signal of specific frequency is loaded on antenna in this step, and signal simulation is carried out to transmitting signal and is obtained
Emit the signal simulation result of signal.
S203, reference signal simulation result is obtained.
After determining reference planes, interception is located at the reference signal emulation knot in reference planes in the simulation result of signal
Fruit.
S204, target area is determined.
According to reference signal simulation result, emit the smallest target area of signal interference by determining.
S205, interference component is set in target area.
Component is interfered to be arranged in target area, so that the interference that interference component generates the transmitting signal of antenna is dropped
To minimum.
It is intelligent mobile terminal in the main implementation terminal of inventive embodiments, intelligent mobile terminal is in order to guarantee good letter
Number transmitting-receiving ability, antenna design when be typically designed to omnidirectional antenna.Omnidirectional antenna, generally referred to as horizontal each azimutal gain
Identical antenna, i.e., 360 degree of horizontal direction coverings.The increase of horizontal direction gain is come by the reduction of vertical direction gain
It realizes.It is believed that omnidirectional antenna gain is bigger, the range covered in horizontal direction is also bigger, covers in vertical direction
Range it is smaller.It therefore, is three dimensional signal simulation result in the signal simulation result of omnidirectional antenna gone out, three-dimensional artificial result
Central point is exactly the position of omnidirectional antenna setting.
In the present embodiment, reference planes step S201, are determined, which is that the plane of circuit board is arranged.Due to
The main implementation terminal of the embodiment of the present invention is intelligent mobile terminal, and intelligent mobile terminal has integrated level height, component part
Intensively, therefore the reference planes of circuit board and setting for signal antenna is arranged in the distance between various components feature close with being spaced
Seated position distance can be very close, or even can overlap, so, in signal simulation result, plane of reference meeting and signal
The setting position of the central point of simulation result i.e. antenna from what or it is close.
In the present embodiment, it step S202, obtains simulation result, the transmitting signal of specific frequency is loaded on antenna, and
The signal simulation result that signal simulation obtains transmitting signal is carried out to transmitting signal.When the transmitting signal emitted antenna carries out
When antenna gain emulates, signal simulation result is the antenna gain simulation result for emitting signal.
Antenna gain refers to: under conditions of input power is equal, actual antennas is same in space with ideal radiating element
The ratio between the power density of signal caused by a bit.It quantitatively describes the journey of a day bundle of lines input power concentrated radiation
Degree.Gain obviously has close relationship with antenna radiation pattern, and the major lobe of directional diagram is narrower, and minor lobe is smaller, and gain is higher.Antenna gain
It is for measuring antenna towards the ability of a specific direction receiving and transmitting signal, it is one of selection most important parameter of antenna for base station.
In general, the raising of gain relies primarily on the lobe width for reducing and being facing perpendicularly to radiation, and keeps omnidirectional in the horizontal plane
Radiance.Antenna gain is particularly important to the running quality of mobile communication system, because it determines the signal electricity of cell edge
It is flat.The coverage area of network can be increased up in a determination side by increasing gain, or determined in range more than increase gain
Amount.Any cellular system is all a two-way process, and the gain for increasing antenna can reduce bilateral system gain budget margin simultaneously.
There are two types of the unit of antenna gain is general: dBi and dBd, it is the benchmark referred to that wherein dBi, which is with ideal point source antenna, in each side
To radiation be uniform；DBd is using the antenna in half-wave a period of time (dipole) as reference data, relative to doublet antenna
Gain dBi=dBd+2.15.Under the same conditions, gain is higher, and the distance of radio wave propagation is remoter.Generally, GSM directional base station
Antenna gain be 18dBi, omnidirectional is 11dBi.The same antenna gain, dBi ratio dBd numerically big 2.15dB.
Step S203, it obtains reference signal simulation result, after determining reference planes, intercepts position in the simulation result of signal
In the reference signal simulation result in reference planes.When the transmitting signal emitted antenna carries out antenna gain emulation, letter
Number simulation result is the antenna gain simulation result for emitting signal, at this time according to the signal in the reference planes of reference planes interception
Simulation result includes: signal launch point and antenna gain curve；Point centered on signal launch point；Antenna gain curve is antenna hair
The transmitting signal penetrated, the antenna gain distribution situation of all directions on the reference plane；According to antenna gain curve and determination
Emit the smallest target area of signal interference.
Signal simulation result in reference planes includes: signal launch point and antenna gain curve；During signal launch point is
Heart point；Antenna gain curve is the transmitting signal of antenna transmitting, and the antenna gain of all directions on the reference plane is distributed feelings
Condition；According to antenna gain curve, the transmitting the smallest target area of signal interference is determined.
In practical situations, the antenna of intelligent mobile terminal is not complete omnidirectional antenna, is had on a different plane
There are different gain profiles, in addition in different frequency range, directionality is equally also different.Therefore the gain being truncated on the reference plane
Curve is not complete symmetrical round, but is made of main lobe and minor lobe.
Step S204, target area is determined, according to reference signal simulation result, by determining that transmitting signal interference is the smallest
Target area.The present embodiment provides a kind of example that target area is determined by antenna gain.
Determine that the transmitting the smallest target area of signal interference comprises determining that the minimum antenna gain point on gain curve；It will
Minimum antenna gain point is connect with launch point, determines the angle value of minimum antenna gain point present position；It will be located on angle value
Straight line range as target area.
In practical situations, since the antenna of intelligent mobile terminal is not complete omnidirectional antenna, according to joining
Examine the gain curve being truncated in plane, it may be convenient to find the minimum antenna gain point on gain curve, determine minimum increase
The angle value and signal gain value of minimum antenna gain point can be read after benefit point in reference axis directly on the reference plane, really
After the angle value of fixed minimum antenna gain point, the region on the straight line of the angle value in the minimum antenna gain point is
Target area.
Step S205, interference component is set in target area, interference component is arranged in target area, so that interference
The interference that component generates the transmitting signal of antenna is preferably minimized.
After target area has been determined, in order to further achieve the purpose that be preferably minimized interference, to interference component
Setting position can also further be limited, when target area is located in the region of circuit board, disturbance means are set
It sets on highest distance position of the target area from antenna；When target area part is located in the region of circuit board, by disturbance means
It is arranged on the region position farthest from antenna of the two coincidence.
The present embodiment (beneficial effect).
A kind of transmitting signal interference optimization method is present embodiments provided for reducing interference component to signal antenna
Transmitting signal leads to the problem of interference, and transmitting signal interference optimization method comprises determining that the setting plane of circuit board for reference to flat
Face；The transmitting signal of specific frequency is loaded on antenna, and the signal that signal simulation obtains transmitting signal is carried out to transmitting signal
Simulation result；Interception is located at the reference signal simulation result in reference planes in signal simulation result；It is imitative according to reference signal
It is true to emit the smallest target area of signal interference as a result, determining；Disturbance means are set on target area.By signal simulation,
It finds out and needs to interfere the smallest target area on the circuit board that interference component is arranged, chaff element device is set in the target area
Part optimizes the signal interference problem that antenna is generated in transmitting signal process by interference component.
Second embodiment
Present embodiment illustrates the present invention smart phone on application example, in current intelligent machine, with complete
The appearance of face, area shared by the display area of mobile phone front display screen is higher and higher, this causes to be arranged in display screen lower end
Winding displacement on antenna of the screen driving IC apart from mobile phone bottom distance it is more and more closer.The effect of current liquid crystal cell is similar
Capacitor is the same, and the display of image needs a switching voltage constantly to operate to element, so the built-in DC/DC of driving IC
Pumping circuit converter switchs low and high level VGH, VGL for generating element, and conventional frequency is generally 600K or 800KHz,
Due to containing an oscillator in LCD driving IC, to generate various clock work signals when bright screen, so containing in driving IC
There are many nonlinear devices.When the antenna of mobile phone is increasingly closer to these drivings IC, antenna is emitting high-power transmitting signal simultaneously
When directly hitting driving IC, it is easy to produce various clutter noises.
To solve the above-mentioned problems, the best setting position of driving IC can be found out by implementing technical solution of the present invention
It sets, IC will be driven to be arranged on optimal position to reduce interference of the driving IC to lower antenna transmitting signal, it is specific to implement
Process is as follows:
1, complete machine associative simulation: in view of LCD driving IC under mobile phone antenna it is closer, and be seated when these devices
When near transmission power maximum gain direction, it is easy to produce nonlinear effect, the present embodiment uses 3 D electromagnetic simulation software CST
Complete machine associative simulation is carried out, specific complete machine associative simulation schematic diagram is as described in Figure 3.
Refer to Fig. 3, Fig. 3 is the schematic diagram of the present embodiment complete machine associative simulation, shows a kind of cell phone in Fig. 3
The driving IC 301 of model, the cell phone uses COP packaging technology or COF packaging technology, and driving IC 301 is passed through portion
Sub-screen folds or winding displacement is folded at the rear of display screen, and the bottom of cell phone is the setting of antenna under mobile phone
Position.
In practical situations, antenna for mobile phone is not complete omnidirectional antenna, in different faces with different gain point
Cloth, in addition in different frequency range, directionality is equally different.Combine with watt level according to the frequency of transmitting signal imitative
Very, different angle transmitting sense is found out, and the driving IC location layout for changing LCD hides greatest irradiation direction, reduces
Influencing each other between nonlinear device and antenna.
2, signal simulation example: it is emulation that the present embodiment, which chooses the transmitting signal that working frequency range is 62 channels among GSM900,
Example.
The transmitting signal that working frequency range is 62 channels among GSM900 is applied to the lower day of the mobile terminal in above-mentioned way 3
On line, the far field radiation characteristics of analysis transmitting signal, the three dimensional signal simulation result obtained, the shape of the three dimensional signal simulation result
Shape be similar to a spherical shape, as soon as but irregular spherical shape, the bigger point signal gain of radius is also bigger on spherical surface.
The cell phone at this time obtained according to three dimensional signal simulation result descends antenna in GSM900 frequency range under complete machine state
Directionality as a result, we can directly read the maximum antenna gain of this antenna at present from 3 D electromagnetic simulation software CST
For 4.52dBi.
Since the rear of display screen is arranged in LCD screen driving IC, and it is parallel to mobile phone screen setting, therefore, I
Be primarily upon driving IC where face, be, in three dimensional signal simulation result screen printing or driving IC locating for face
On simulation result.
3, the setting position of driving IC is determined by simulation result: determining the setting plane of driving IC, is setting driving
Plane where the winding displacement of IC, by 3 D electromagnetic simulation software CST generate three dimensional signal simulation result in, interception driving IC
Signal gain directional diagram in plane is set, as shown in Figure 4.
Fig. 4 is referred to, Fig. 4 is the signal gain directional diagram that lower antenna simulation result is arranged in plane in driving IC.From Fig. 4
In can read:
Half-power beam width is 83.6 degree, and corresponding angle is 59 and -24.6 degree respectively；
Main lobe maximum gain 4.52dBi；
Main lobe direction is 20 degree；
Side lobe gain -6.4dB；
In Fig. 4, point 1,2 and 3 is three points gone on antenna gain curve respectively, from the lower left corner shown in Fig. 4
The coordinate value of each point of display, first numerical value in coordinate value are angle value, and second value is signal gain value, from three
The coordinate value of point is known that on antenna gain curve signal gain is worth the point that the smallest point be a little 2 places, put 2 (-
134.3, -4.476) angle value is -134.3, and the signal gain value of the point is -4.476.
4, angle corresponding to minimum signal gain point and the gain point contrast verification in kind: is obtained by signal simulation
Afterwards, whether useful in order to verify transmitting signal interference optimization method proposed by the invention, the embodiment of the present invention also passes through material object
Result is verified, verification result is as follows:
As shown in fig. 6, Fig. 6 is the LCD display made of COF packaging technology, in Fig. 6,502 region is from aobvious
The winding displacement that display screen extracts, 503 screen winding displacements and the connection cable for being drawn out to mainboard, 501 region and setting for driving IC
Region is set, during actual installation, screen winding displacement can place the lower section with screen mould group by the placement of folding, after folding
Drive position and the signal antenna of IC close, the angle with the launch point of signal antenna is 180 degree.
Firstly, display screen shown in fig. 5 is installed on cell phone, in the case where display screen is closed, mobile phone is allowed
Lower Antenna Operation 62 channel among GSM900, detects antenna spectral image at this time, obtained result is as shown in fig. 6, Fig. 6 is
Antenna spectrogram when display screen does not work.As can be seen from Figure 6 antenna only launching frequency 902MHz and reception nearby is descended
Frequency point 940MHz, without other noise powers.The receiving sensitivity of the transmitting signal of detection simultaneously at this time.
Then display screen is lighted, antenna spectral image at this time is detected, obtained result is as shown in fig. 7, Fig. 7 is display screen
Antenna spectrogram when work.It can be seen from figure 7 that when display screen is lighted, after start-up operation, since driving IC starts work
Make, produce the uniformly distributed noise that frequency interval is 1.8MHz, this is because IC is closer away from aerial position, 902MHz emits function
Rate is mixed generation with DC/DC power supply noise in an oscillator.The receiving sensitivity of the transmitting signal of detection simultaneously at this time.
After data before obtaining optimization, the setting position of driving IC is optimized, the data after test optimization carry out pair
Than.According to the simulation result of Fig. 4, change the placement position of driving IC, makes the nonlinear device Oscillator (oscillation in IC
Device) in antenna side lobe least gain angle, it is -134.3 degree by 2 least gain angle value of point available in Fig. 4, simultaneously
, it is known that disturbance means are arranged on the remoter position of example signal source, the interference of generation is also fewer for we, therefore, can at
In the case that this allows with physical condition, the setting position of IC will be driven to be arranged in the case where small gain angle value is -134.3 degree from day
Line position remote as far as possible.
LCD display after being optimized by setting position of the above method to driving IC returns on cell phone from new clothes
Repeat above-mentioned same test, comprising: the receiving sensitivity and test display screen of transmitting signal when test display screen is non-lit up
The receiving sensitivity of transmitting signal when lighting, the result obtained is as shown in the table, and following table is driving IC optimization layout front and back number
According to comparison.
| GSM900 (62 channel) | Sensitivity when screen is closed | Sensitivity when screen is lighted |
| IC is in home position (180 degree) | -103·dBm | -96·dBm |
| Change the position IC (- 134.3 degree) | -103·dBm | -99·dBm |
Refer to table, from upper table can with go out, change driving the position IC after, receiving sensitivity improve 3dB；Therefore,
It can be concluded that changing nonlinear device layout using the technical solution of half inventive embodiments, transmission power is caused a deviation from most
Large gain direction, i.e. increase relative path, can improve nonlinear effect, reduce interference of the nonlinear device to transmitting signal.
It is further to note that this patent choose physical varification, sensitivity maximum interference 7dB, actually by
When bright screen caused by the driving IC interference and other interference superposition of display screen, this tests all data just for the driving of display screen
IC interference optimizes setting.
3rd embodiment
The present embodiment additionally provides a kind of display screen module, and display screen module includes: the FPC for driving IC, carrying driving IC
Winding displacement and backlight module；
The back side of backlight module is arranged in FPC winding displacement, and driving IC is arranged on the target area on FPC winding displacement；
Target area transmitting signal interference optimization of the middle first embodiment into second embodiment through the embodiment of the present invention
Method determines.
The present embodiment additionally provides a kind of terminal, which includes antenna and above-mentioned display screen module；
Antenna is omnidirectional antenna, and the lower section of display module is arranged in, close to the position of display module.
Fourth embodiment
The embodiment of the invention also provides a kind of computer readable storage mediums, in the computer-readable recording medium storage
There is one or more program, which can be executed by one or more processor, to execute the present invention
In embodiment the step of transmitting signal interference optimization method of the first embodiment into second embodiment.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or the device that include a series of elements not only include those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
There is also other identical elements in the process, method of element, article or device.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, technical solution of the present invention substantially in other words does the prior art
The part contributed out can be embodied in the form of software products, which is stored in a storage medium
In (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal (can be mobile phone, computer, service
Device, air conditioner or network equipment etc.) execute method described in each embodiment of the present invention.
The embodiment of the present invention is described with above attached drawing, but the invention is not limited to above-mentioned specific
Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art
Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much
Form, all of these belong to the protection of the present invention.
Claims (10)
1. a kind of transmitting signal interference optimization method, which is characterized in that the transmitting signal interference method includes:
The setting plane for determining circuit board is reference planes；
The transmitting signal of specific frequency is loaded on antenna, and signal simulation is carried out to the transmitting signal and show that the transmitting is believed
Number signal simulation result；
Interception is located at the reference signal simulation result in the reference planes in the signal simulation result；
According to the reference signal simulation result, the smallest target area of the transmitting signal interference is determined；
The disturbance means are set on the target area.
2. transmitting signal interference optimization method as described in claim 1, which is characterized in that the antenna is omnidirectional antenna, is obtained
The signal simulation result out is three dimensional signal simulation result；
The omnidirectional antenna is located at the central point of the three dimensional signal simulation result.
3. transmitting signal interference optimization method as claimed in claim 2, which is characterized in that the reference planes and the center
Point coincidence or close.
4. transmitting signal interference optimization method as claimed in claim 3, which is characterized in that the signal simulation result is described
Emit the antenna gain simulation result of signal.
5. transmitting signal interference optimization method as claimed in claim 4, which is characterized in that the signal in the reference planes is imitative
True result includes: signal launch point and antenna gain curve；
The signal launch point is the central point；
The antenna gain curve is the transmitting signal of antenna transmitting, all directions in the reference planes
Antenna gain distribution situation；
According to the antenna gain curve, the smallest target area of the transmitting signal interference is determined.
6. transmitting signal interference optimization method as claimed in claim 5, which is characterized in that the determination transmitting signal is dry
Disturbing the smallest target area includes:
Determine the minimum antenna gain point on the gain curve；
The minimum antenna gain point is connect with the launch point, determines the angle of the minimum antenna gain point present position
Value；
The range of the straight line on the angle value will be located at as the target area.
7. transmitting signal interference optimization method as claimed in any one of claims 1 to 6, which is characterized in that when the target area
When in the region of the circuit board, the target area is arranged in from the highest distance position of antenna in the disturbance means；
When the target area part is located in the region of the circuit board, the two coincidence is arranged in the disturbance means
On the position farthest from antenna of region.
8. a kind of display screen module, which is characterized in that the display screen module includes: the FPC winding displacement for driving IC, carrying driving IC
And backlight module；
The back side of the backlight module is arranged in the FPC winding displacement, and the target area on the FPC winding displacement is arranged in the driving IC
On domain；
The target area is determined by transmitting signal interference optimization method described in any one of claims 1 to 7.
9. a kind of terminal, which is characterized in that the terminal includes: antenna and display screen module as claimed in claim 8；
The antenna is omnidirectional antenna, and the lower section of the display module is arranged in, close to the position of the display module.
10. a kind of computer readable storage medium, which is characterized in that the computer-readable recording medium storage have one or
Multiple programs, one or more of programs can be executed by one or more processor, to realize such as claim 1 to 7
Any one of described in transmitting signal interference optimization method the step of.
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| CN112233566A (en) * | 2020-11-23 | 2021-01-15 | 维沃移动通信有限公司 | Display screen and electronic equipment |
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