CN108601201A - Flexible PCB and electronic device - Google Patents
Flexible PCB and electronic device Download PDFInfo
- Publication number
- CN108601201A CN108601201A CN201810320184.8A CN201810320184A CN108601201A CN 108601201 A CN108601201 A CN 108601201A CN 201810320184 A CN201810320184 A CN 201810320184A CN 108601201 A CN108601201 A CN 108601201A
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- Prior art keywords
- flexible pcb
- grounding
- filter circuit
- hole
- dew copper
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0213—Electrical arrangements not otherwise provided for
- H05K1/0215—Grounding of printed circuits by connection to external grounding means
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/11—Printed elements for providing electric connections to or between printed circuits
- H05K1/115—Via connections; Lands around holes or via connections
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/11—Printed elements for providing electric connections to or between printed circuits
- H05K1/118—Printed elements for providing electric connections to or between printed circuits specially for flexible printed circuits, e.g. using folded portions
Abstract
The embodiment of the present application discloses a kind of flexible PCB and electronic device, the flexible PCB include：Flexible PCB ontology, board to board connector BTB and at least one dew copper region；Wherein, at least one dew copper region includes：At least one grounding through hole, the flexible PCB ontology are grounded by least one grounding through hole.Technical solution provided by the present application has the advantages of anti-interference, to improve user experience.
Description
Technical field
This application involves technical field of mobile terminals, and in particular to a kind of flexible PCB and electronic device.
Background technology
With a large amount of popularization and applications of the wireless telecom equipments such as smart mobile phone, the application that smart mobile phone can be supported is increasingly
More, function is stronger and stronger, and smart mobile phone develops towards diversification, personalized direction, and antenna and display screen belong to intelligent hand
The essential product of machine, antenna have the signal and frequency of itself, and since the space of smart mobile phone is limited, display screen is at a distance from antenna
Limited, the frequency of display screen can interfere antenna, influence user's use, reduce user experience.
Invention content
The embodiment of the present application provides a kind of flexible PCB and electronic device, to reduce interference of the display screen to antenna,
Improve user experience.
In a first aspect, the embodiment of the present application provides a kind of flexible PCB, the flexible PCB includes：Flexible PCB
Ontology, board to board connector BTB and at least one dew copper region；Wherein,
At least one dew copper region includes：At least one grounding through hole, the flexible PCB ontology pass through described
At least one grounding through hole ground connection.
Optionally, at least one dew copper region is arranged in the side of the BTB of the flexible PCB ontology or setting
In the other side of the close mainboard of flexible PCB local.
Optionally, at least one grounding through hole is multiple grounding through hole.
Optionally, the spacing in the multiple grounding through hole between two neighboring grounding through hole is equal.
Optionally, the flexible PCB further includes：Filter circuit,
One end of the filter circuit connects the grounding through hole, the other end connection ground of the filter circuit.
Optionally, the filter circuit includes：Inductively or capacitively.
Optionally, the filter circuit includes：Selecting switch, the first capacitance, the first inductance, wherein the selecting switch
Common end connect the grounding through hole, two selection ends of the selecting switch be separately connected one end of first capacitance with
And one end of first inductance, the other end ground connection of the other end of first capacitance and first inductance.
Optionally, at least one dew copper region includes multiple dew copper regions, and the multiple dew copper region is arranged in institute
It states the side of the BTB of flexible PCB ontology and is arranged in the other side of the close mainboard of flexible PCB local；
The flexible PCB further includes：First filter circuit and the second filter circuit；
One end of first filter circuit is connect with the grounding through hole in the dew copper region of the other side, and described first
The other end of filter circuit is grounded；
One end of second filter circuit is connect with the grounding through hole in the dew copper region of the side of the BTB, described
The other end of second filter circuit is grounded.
Optionally, first filter circuit is inductance, and second filter circuit is capacitance.
Second aspect, provides a kind of electronic device, and the electronic device includes：Shell, mainboard, display screen, feature exist
In the electronic device further includes the flexible PCB that first aspect provides, and the mainboard passes through the flexible PCB and institute
State display screen connection.
As can be seen that in the embodiment of the present application, the present embodiment is in electronic device at least one areas Lu Tong of setting of FPC
Domain, and grounding through hole is set in dew copper region, it is then grounded by the grounding through hole, improves the Earthing Reliability of FPC, connect
Ground is a kind of effective scheme for reducing noise amplitude.Higher Earthing Reliability can effectively reduce display screen and be done to antenna
It disturbs.
Description of the drawings
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of application for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of structural schematic diagram of flexible PCB.
Fig. 2 a are a kind of structural schematic diagrams of electronic device.
Fig. 2 b are the structural schematic diagrams of the flexible PCB of the application.
Fig. 3 a are a kind of structural schematic diagrams of filter circuit of the application.
Fig. 3 b are the structural schematic diagrams of another filter circuit of the application.
Fig. 3 c are the structural schematic diagrams of another filter circuit of the application.
Fig. 4 is a kind of handset structure schematic diagram of the application.
Specific implementation mode
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.It is based on
Embodiment in the application, those of ordinary skill in the art are obtained every other under the premise of not making the creative labor
Embodiment shall fall in the protection scope of this application.
Term " first ", " second " in the description and claims of this application and above-mentioned attached drawing etc. are for distinguishing
Different objects, rather than for describing particular order.In addition, term " comprising " and " having " and their any deformations, it is intended that
It is to cover and non-exclusive includes.Such as process, method, system, product or the equipment for containing series of steps or unit do not have
It is defined in the step of having listed or unit, but further includes the steps that optionally not listing or unit, or optionally also wrap
It includes for other intrinsic steps of these processes, method, product or equipment or unit.
Referenced herein " embodiment " is it is meant that a particular feature, structure, or characteristic described can wrap in conjunction with the embodiments
It is contained at least one embodiment of the application.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.
Electronic device involved by the embodiment of the present application may include various handheld devices with wireless communication function,
Mobile unit, wearable device, computing device or other processing equipments and various forms for being connected to radio modem
User equipment (User Equipment, UE), mobile station (Mobile Station, MS), terminal device (terminal
Device) etc..Certainly in other application, above-mentioned wireless telecom equipment can also be network side equipment, such as base station, access
The network side equipments such as point.For convenience of description, apparatus mentioned above is referred to as wireless telecom equipment.
Refering to fig. 1, Fig. 1 is a kind of flexible PCB, as shown in Figure 1, the flexible PCB includes：FPC ontologies 120 connect
Mouth 121 and ear 122, in the edges FPC, which includes dew copper region, passes through the dew copper region for the ear 122 setting
Ground connection.
Flexible circuit board structure as shown in Figure 1, is provided with ear 122 and the ear 122 stretching FPC sheets are external, this
Structure can cause FPC to warp, and cause to be grounded bad and scratch battery, and the ground structure reliability is low, lower reliable
Property causes its anti-interference ability relatively low.
Please refer to Fig. 2 a, Fig. 2 a are the structural schematic diagram that the embodiment of the present application provides a kind of electronic device 100, the electricity
Sub-device 100 includes：Display screen 103, flexible PCB FPC101, mainboard 102, shell 110, wherein the mainboard 102 and flexibility
The inside with the shell 110 is arranged in circuit board 101, which is connect by FPC101 with mainboard 102, wherein should
FPC101 such as Fig. 2 b include：At least one dew copper region 1011, each copper region 1011 of revealing includes at least one grounding through hole
108, which is grounded by the grounding through hole.
The electronic device that technical scheme provides is at least one dew copper region of setting of FPC, and in the areas Lu Tong
Grounding through hole is arranged in domain, is then grounded by the grounding through hole, improves the Earthing Reliability of FPC, and ground connection is a kind of effectively drop
The scheme of low noise amplitude.Higher Earthing Reliability can effectively reduce interference of the display screen to antenna.
Optionally, it may include multiple grounding through hole that this, which each reveals copper region 1011, and each grounding through hole is grounded.
Optionally, the distance between multiple grounding through hole can be to be uniformly arranged, the multiple grounding through hole being uniformly arranged
The path difference of the ground path of multiple circuits can be made to reduce, and then reduce the circulation between different ground paths, improved
Earthing effect and the effect for improving noise filtering.
Optionally, above-mentioned at least one dew copper region 1011 is disposed in proximity to BTB (English：Board-to-Board
Connectors, board to board connector) side.At least one dew copper region 1011 is positioned close to the side of BTB, it can
So that noise signal carries out a filtering before entering display screen by BTB, it is excellent with effective filtered noise signal
Point.
Optionally, above-mentioned at least one dew copper region 1011 is disposed in proximity to the other side of mainboard.By the dew copper region
1011 are disposed in proximity to the other side of mainboard, can make noise signal that can carry out a filtering after mainboard output, this
Sample effectively carries out noise filtering to the signal of mainboard output, improves the effect of filtering.
Optionally, one end of at least one grounding through hole connection filter circuit in above-mentioned each dew copper region 1011, filtering
The other end of circuit is grounded, and the filter circuit is as shown in Figure 3a, can specifically include：First capacitance C1, first capacitance C1's
One end connects grounding through hole, the other end ground connection of the first capacitance C1.This filter circuit is mainly the low frequency to ground connection by capacitance
Noise is filtered.
Optionally, as shown in Figure 3b, above-mentioned filter circuit can also include：Selecting switch, the second capacitance C2, the first inductance
L1, wherein the selection switch common end connect grounding through hole, the selection switch two selection ends respectively with the second capacitance C2
One end and the first inductance L1 one end connection, the other end ground connection of the other end of the second capacitance C2 and the first inductance L1.
Above-mentioned selecting switch is specifically as follows single-pole double-throw switch (SPDT), can also be other selecting switch certainly in practical applications, this
Application specific implementation mode is not intended to limit the concrete structure of above-mentioned switch.This structure can be equal to high-frequency noise and low-frequency noise
It is filtered, wherein inductance L1 is filtered high-frequency noise, and capacitance C2 is filtered low-frequency noise, is improved to reach
The effect of noise filtering.
Optionally, above-mentioned dew copper region 1011 can be multiple, and multiple dew copper regions 1011 can be positioned close to BTB's
The other side of side and close mainboard；When close to the other side of mainboard with dew copper region is both provided with close to the side of BTB,
The effect of noise filtering can effectively be improved by being respectively provided with dew copper region in the side of the other side and close BTB close to mainboard
Fruit improves user experience and will produce interference outputting and inputting because when it is transmitted by FPC for noise signal, that
It is respectively provided with bare copper areas and grounding through hole ground connection in this both sides, can effectively inhibit noise, improve the effect of filtering.
Optionally, as shown in Figure 3c, the first grounding through hole close to the dew copper region of the other side of mainboard is filtered by high frequency
Wave circuit is grounded, which is specifically as follows inductance, specifically, one end of the inductance connects the first grounding through hole,
The other end of inductance is grounded, corresponding, and the second grounding through hole close to the dew copper region of the side of BTB passes through low-frequency filter circuit
Ground connection, the low-frequency filter circuit are specifically as follows capacitance.Here by two not homonymy low frequency and high-frequency filter circuit is respectively configured
High-frequency noise is found through experiments that in the effect that filtering can be improved, more to generate in mainboard side, so close
The other side of mainboard is arranged high-frequency filter circuit, and BTB settings low-frequency filter circuit can significantly more efficient raising low frequency make an uproar
The filtering of sound, and then the effect of filtering is improved, so it has the effect of the advantages of improving filtering, improving user experience.
Referring to Fig. 4, Fig. 4 is a kind of structural schematic diagram of mobile terminal disclosed by the embodiments of the present invention, with mobile phone in Fig. 4
For illustrate.With reference to figure 4, mobile phone includes：Radio frequency (Radio Frequency, RF) circuit 910, memory 920, input
Unit 930, display unit 940, sensor 950, voicefrequency circuit 960, Wireless Fidelity (Wireless Fidelity, WiFi) mould
The components such as block 970, processor 980, mainboard 880 and power supply 990.The processor 980 is arranged on mainboard 880, this field skill
Art personnel are appreciated that handset structure shown in Fig. 4 does not constitute the restriction to mobile phone, may include more or more than illustrating
Few component either combines certain components or different components arrangement.
Each component parts of mobile phone is specifically introduced with reference to Fig. 4：
RF circuits 910 can be used for sending and receiving for information.In general, RF circuits 910 include but not limited to antenna, at least one
A amplifier, transceiver, coupler, low-noise amplifier (Low Noise Amplifier, LNA), duplexer etc..In addition,
RF circuits 910 can also be communicated with network and other equipment by radio communication.Above-mentioned wireless communication can use any communication
Standard or agreement, including but not limited to global system for mobile communications (Global System of Mobile
Communication, GSM), general packet radio service (General Packet Radio Service, GPRS), code it is point more
Location (Code Division Multiple Access, CDMA), wideband code division multiple access (Wideband Code Division
Multiple Access, WCDMA), long term evolution (Long Term Evolution, LTE), Email, short message service
(Short Messaging Service, SMS) etc..
Memory 920 can be used for storing software program and module, and processor 980 is stored in memory 920 by operation
Software program and module, to execute various function application and the data processing of mobile phone.Memory 920 can include mainly
Storing program area and storage data field, wherein storing program area can storage program area, the application journey needed at least one function
Sequence etc.；Storage data field can be stored uses created data etc. according to mobile phone.In addition, memory 920 may include high speed
Random access memory, can also include nonvolatile memory, a for example, at least disk memory, flush memory device or
Other volatile solid-state parts.
Input unit 930 can be used for receiving the number or character information of input, and generate with the user setting of mobile phone with
And the related key signals input of function control.Specifically, input unit 930 may include fingerprint recognition module 931 and other are defeated
Enter equipment 932.Fingerprint recognition module 931 can acquire the finger print data of user on it.In addition to fingerprint recognition module 931, input
Unit 930 can also include other input equipments 932.Specifically, other input equipments 932 can include but is not limited to touch-control
One kind in screen, physical keyboard, function key (such as volume control button, switch key etc.), trace ball, mouse, operating lever etc.
Or it is a variety of.
Display unit 940 can be used for showing information input by user or be supplied to user information and mobile phone it is various
Menu.Display unit 940 may include display screen 941, optionally, liquid crystal display (Liquid Crystal may be used
Display, LCD), the forms such as Organic Light Emitting Diode (Organic Light-Emitting Diode, OLED) it is aobvious to configure
Display screen 941.Although in Fig. 4, fingerprint recognition module 931 and display screen 941 are to realize mobile phone as two independent components
Input and input function, but it is in some embodiments it is possible to fingerprint recognition module 931 and display screen 941 is integrated and real
The input of existing mobile phone and playing function.
Display unit 940 is connect by FPC999 with mainboard 890, wherein the FPC includes：At least one dew copper region, often
A dew copper region includes at least one grounding through hole, which is grounded by the grounding through hole.
Optionally, it may include multiple grounding through hole that this, which each reveals copper region, and each grounding through hole is grounded.
Optionally, the distance between multiple grounding through hole can be to be uniformly arranged, the multiple grounding through hole being uniformly arranged
The path difference of the ground path of multiple circuits can be made to reduce, and then reduce the circulation between different ground paths, improved
Earthing effect and the effect for improving noise filtering.
Optionally, above-mentioned at least one dew copper region is disposed in proximity to the side of BTB.At least one dew copper region is set
It sets close to the side of BTB, noise signal can be made to carry out a filtering before entering display screen by BTB, had
The advantages of filtered noise signal of effect.
Optionally, above-mentioned at least one dew copper region is disposed in proximity to the other side of mainboard.The dew copper region is set to
Close to the other side of mainboard, it can make noise signal that can carry out a filtering after mainboard output, it is effective right in this way
The signal of mainboard output carries out noise filtering, improves the effect of filtering.
Optionally, one end of at least one grounding through hole connection filter circuit in above-mentioned each dew copper region, filter circuit
Other end ground connection, which can specifically include：One end connection ground connection of first capacitance C1, first capacitance C1 are logical
Hole, the other end ground connection of the first capacitance C1.This filter circuit is mainly filtered the low-frequency noise of ground connection by capacitance.
Optionally, above-mentioned filter circuit can also include：Selecting switch, the second capacitance C2, the first inductance L1, wherein should
The common end of selecting switch connects grounding through hole, two selection ends of the selection switch respectively with one end of the second capacitance C2 and
One end of first inductance L1 connects, the other end ground connection of the other end of the second capacitance C2 and the first inductance L1.Above-mentioned selection is opened
Pass is specifically as follows single-pole double-throw switch (SPDT), can also be other selecting switch certainly in practical applications, the application is specifically real
The mode of applying is not intended to limit the concrete structure of above-mentioned switch.This structure can be filtered high-frequency noise and low-frequency noise,
Wherein, inductance L1 is filtered high-frequency noise, and capacitance C2 is filtered low-frequency noise, and noise filtering is improved to reach
Effect.
Optionally, above-mentioned dew copper region can be multiple, and multiple dew copper regions can be positioned close to the side of BTB and lean on
The other side of nearly mainboard；When close to the other side of mainboard with dew copper region is both provided with close to the side of BTB, close to main
The other side of plate and the side of close BTB, which are respectively provided with dew copper region, can effectively improve the effect of noise filtering, improve and use
Family Experience Degree will produce interference because when it is transmitted by FPC for noise signal outputting and inputting, then this two
Side is respectively provided with bare copper areas and grounding through hole ground connection, can effectively inhibit noise, improve the effect of filtering.
Optionally, the first grounding through hole close to the dew copper region of the other side of mainboard is grounded by high-frequency filter circuit,
The high-frequency filter circuit is specifically as follows inductance, specifically, one end of the inductance connects the first grounding through hole, the other end of inductance
Ground connection, corresponding, the second grounding through hole close to the dew copper region of the side of BTB is grounded by low-frequency filter circuit, the low frequency
Filter circuit is specifically as follows capacitance.Here by two not homonymy low frequency and high-frequency filter circuit is respectively configured can improve filtering
Effect high-frequency noise is found through experiments that, it is more to generate in mainboard side, so close to the other side of mainboard
High-frequency filter circuit is set, and is capable of the filtering of significantly more efficient raising low-frequency noise in BTB settings low-frequency filter circuit, in turn
The effect of filtering is improved, so it has the effect of the advantages of improving filtering, improving user experience.
Mobile phone may also include at least one sensor 950, such as optical sensor, motion sensor and other sensors.
Specifically, optical sensor may include ambient light sensor and proximity sensor, wherein ambient light sensor can be according to ambient light
Light and shade adjust the brightness of display screen 941, proximity sensor can when mobile phone is moved in one's ear, close display screen 941 and/or
Backlight.As a kind of motion sensor, accelerometer sensor can detect in all directions the big of (generally three axis) acceleration
It is small, size and the direction of gravity are can detect that when static, can be used to identify mobile phone posture application (such as horizontal/vertical screen switching, phase
Close game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, tap) etc.；It can also configure as mobile phone
The other sensors such as gyroscope, barometer, hygrometer, thermometer, infrared sensor, details are not described herein.
Voicefrequency circuit 960, loud speaker 961, microphone 962 can provide the audio interface between user and mobile phone.Audio-frequency electric
The transformed electric signal of the audio data received can be transferred to loud speaker 961 by road 960, and sound is converted to by loud speaker 961
Signal plays；On the other hand, the voice signal of collection is converted to electric signal by microphone 962, is turned after being received by voicefrequency circuit 960
It is changed to audio data, then by after the processing of audio data playback process device 980, through RF circuits 910 to be sent to such as another mobile phone,
Or audio data is played to memory 920 to be further processed.
WiFi belongs to short range wireless transmission technology, and mobile phone can help user's transceiver electronics postal by WiFi module 970
Part, browsing webpage and access streaming video etc., it has provided wireless broadband internet to the user and has accessed.Although Fig. 4 is shown
WiFi module 970, but it is understood that, and it is not belonging to must be configured into for mobile phone, it can not change as needed completely
Become in the range of the essence of invention and omits.
Processor 980 is the control centre of mobile phone, utilizes various interfaces (for example, UART interface and USB interface) and circuit
The various pieces for connecting whole mobile phone, by running or executing the software program and/or module that are stored in memory 920, with
And the data being stored in memory 920 are called, and the various functions and processing data of mobile phone are executed, it is whole to be carried out to mobile phone
Monitoring.Optionally, processor 980 may include one or more processing units；Preferably, processor 980 can be integrated using processing
Device (AP) and modem processor (Modem), wherein the main processing operation system of application processor, user interface and application
Program etc., modem processor mainly handle wireless communication.It is understood that above-mentioned modem processor can not also
It is integrated into processor 980.
Mobile phone further includes the power supply 990 (such as battery) powered to all parts, it is preferred that power supply can pass through power supply pipe
Reason system and processor 980 are logically contiguous, to realize management charging, electric discharge and power managed by power-supply management system
Etc. functions.
Mobile phone can also include camera 9100, and camera 9100 is for shooting image and video, and by the image of shooting
It is handled to processor 980 with transmission of video.
Mobile phone can be with bluetooth module etc., and details are not described herein.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, there is no the portion being described in detail in some embodiment
Point, it may refer to the associated description of other embodiment.
In several embodiments provided herein, it should be understood that disclosed device, it can be by another way
It realizes.For example, the apparatus embodiments described above are merely exemplary, for example, the unit division, it is only a kind of
Division of logic function, formula that in actual implementation, there may be another division manner, such as multiple units or component can combine or can
To be integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual
Coupling, direct-coupling or communication connection can be by some interfaces, the INDIRECT COUPLING or communication connection of device or unit,
Can be electrical or other forms.
The unit illustrated as separating component may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, you can be located at a place, or may be distributed over multiple
In network element.Some or all of unit therein can be selected according to the actual needs to realize the mesh of this embodiment scheme
's.
The embodiment of the present invention is described in detail above, specific case used herein to the principle of the present invention and
Embodiment is expounded, and the explanation of above example is only intended to help to understand core of the invention thought；Meanwhile for
Those of ordinary skill in the art have change in specific embodiments and applications according to the thought of the present invention
Place, in conclusion the content of the present specification should not be construed as limiting the invention.
Claims (10)
1. a kind of flexible PCB, which is characterized in that the flexible PCB includes：Flexible PCB ontology, plate connect plate
Device BTB and at least one dew copper region；Wherein,
At least one dew copper region includes：At least one grounding through hole, the flexible PCB ontology by it is described at least
One grounding through hole ground connection.
2. flexible PCB according to claim 1, which is characterized in that
At least one dew copper region is arranged in the side of the BTB of the flexible PCB ontology or is arranged in the flexible electrical
The other side of the close mainboard of road plate local.
3. flexible PCB according to claim 1 or 2, which is characterized in that
At least one grounding through hole is multiple grounding through hole.
4. flexible PCB according to claim 3, which is characterized in that
Spacing in the multiple grounding through hole between two neighboring grounding through hole is equal.
5. flexible PCB according to claim 1, which is characterized in that the flexible PCB further includes：Filter circuit,
One end of the filter circuit connects the grounding through hole, the other end connection ground of the filter circuit.
6. flexible PCB according to claim 5, which is characterized in that
The filter circuit includes：Inductively or capacitively.
7. flexible PCB according to claim 5, which is characterized in that
The filter circuit includes：Selecting switch, the first capacitance, the first inductance, wherein the common end of the selecting switch connects
Two selection ends of the grounding through hole, the selecting switch are separately connected one end of first capacitance and first electricity
The other end of one end of sense, the other end of first capacitance and first inductance is grounded.
8. flexible PCB according to claim 1, which is characterized in that
At least one dew copper region includes multiple dew copper regions, and the multiple dew copper region is arranged in the flexible PCB
The side of the BTB of ontology and it is arranged in the other side of the close mainboard of flexible PCB local；
The flexible PCB further includes：First filter circuit and the second filter circuit；
One end of first filter circuit is connect with the grounding through hole in the dew copper region of the other side, first filtering
The other end of circuit is grounded；
One end of second filter circuit is connect with the grounding through hole in the dew copper region of the side of the BTB, and described second
The other end of filter circuit is grounded.
9. flexible PCB according to claim 8, which is characterized in that
First filter circuit is inductance, and second filter circuit is capacitance.
10. a kind of electronic device, the electronic device include：Shell, mainboard, display screen, which is characterized in that the electronic device
Further include flexible PCB as described in any one of claims 1-9, the mainboard by the flexible PCB with it is described
Display screen connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810320184.8A CN108601201B (en) | 2018-04-11 | 2018-04-11 | Flexible circuit board and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810320184.8A CN108601201B (en) | 2018-04-11 | 2018-04-11 | Flexible circuit board and electronic device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108601201A true CN108601201A (en) | 2018-09-28 |
| CN108601201B CN108601201B (en) | 2019-09-27 |
Family
ID=63621631
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810320184.8A Active CN108601201B (en) | 2018-04-11 | 2018-04-11 | Flexible circuit board and electronic device |
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| CN (1) | CN108601201B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109546291A (en) * | 2019-01-04 | 2019-03-29 | 东莞市仁丰电子科技有限公司 | A kind of 5GNR multiband aerial |
| CN109890129A (en) * | 2019-03-26 | 2019-06-14 | 厦门天马微电子有限公司 | A kind of display device |
| CN112684866A (en) * | 2021-01-06 | 2021-04-20 | 素泰智能科技(上海)有限公司 | Hardware and structure for improving protection performance of expansion port |
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